CA1299961C - Rods containing pelletized material - Google Patents
Rods containing pelletized materialInfo
- Publication number
- CA1299961C CA1299961C CA000569458A CA569458A CA1299961C CA 1299961 C CA1299961 C CA 1299961C CA 000569458 A CA000569458 A CA 000569458A CA 569458 A CA569458 A CA 569458A CA 1299961 C CA1299961 C CA 1299961C
- Authority
- CA
- Canada
- Prior art keywords
- continuous
- rod
- strand
- web
- predetermined intervals
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/061—Use of materials for tobacco smoke filters containing additives entrapped within capsules, sponge-like material or the like, for further release upon smoking
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D1/00—Cigars; Cigarettes
- A24D1/002—Cigars; Cigarettes with additives, e.g. for flavouring
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
- A24D3/0212—Applying additives to filter materials
- A24D3/0216—Applying additives to filter materials the additive being in the form of capsules, beads or the like
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Manufacturing Of Cigar And Cigarette Tobacco (AREA)
Abstract
RODS CONTAINING PELLETIZED MATERIAL
ABSTRACT OF THE DISCLOSURE
Cigarette filter rods having individual pellets positioned at predetermined intervals therein are prepared by cutting a strand of plasticized material into pellets which are then inserted into a web of filter tow. A wheel having a series of grooves is rotated within a rim-like housing, and introduction of a plasticized flavor-containing strand into each groove results in a cutting of the strand into pellets of the desired size. Each pellet is positioned within the moving web of tow. The web filter material and the pellets positioned within the web are introduced into a rod-making unit wherein the rod is formed. The rate of feed of the strand, the rate of feed of the filter tow, the rate of rotation of the grooved wheel and the rate of pellet formation are controlled relative to one another such that pellets of well controlled size are positioned at predetermined intervals along the rod.
Cigarette filter elements having well controlled amounts of flavorant contained therein can be made from the rods.
ABSTRACT OF THE DISCLOSURE
Cigarette filter rods having individual pellets positioned at predetermined intervals therein are prepared by cutting a strand of plasticized material into pellets which are then inserted into a web of filter tow. A wheel having a series of grooves is rotated within a rim-like housing, and introduction of a plasticized flavor-containing strand into each groove results in a cutting of the strand into pellets of the desired size. Each pellet is positioned within the moving web of tow. The web filter material and the pellets positioned within the web are introduced into a rod-making unit wherein the rod is formed. The rate of feed of the strand, the rate of feed of the filter tow, the rate of rotation of the grooved wheel and the rate of pellet formation are controlled relative to one another such that pellets of well controlled size are positioned at predetermined intervals along the rod.
Cigarette filter elements having well controlled amounts of flavorant contained therein can be made from the rods.
Description
RODS CONTAINING
BACKGRO~ND OF THE INVENTION
The present invention relates to the manufacture 5 of rods such as are useful for the manufacture of filter elements for smoking articles, and in partic-ular, to filter rods having pelletized materials spaced at predetermined intervals therein.
Popular smoking articles such as cigarettes have a 10 ~ubstantially cylindrical rod ~haped structure and include a charge of smokable material such as shredded tobacco (eg., cut filler) surrounded by a paper wrapper thereby forming a ~o-called ~tobacco rod.~ It has become desirable to manufacture cigarettes having 15 cylindrical filter elements aligned in an end-to-end relationship with the tobacco rod. Typically, filter elements are manufactured from fibrous materials such as cellulose acetate tow which i8 circumscribed by plug wrap. The filter element is attached to the tobacco 20 rod using a circumscribing tipping material. The filter elements generally are provided from 80 called ~filter rods.~
Apparatus and methods for providing a cigarette filter rod containing a ~moke modifying agent are 25 proposed by Pryor in V.S. Patent Nos. 4,549,875;
4,525,385 and 4,476,807. Another type of cigarette :`
filter rod having a continuous flavored thread incorporated therein or wrapped in flavored tape is proposed by Bynre et al in U.S. Patent ~o. 4,281,671.
Still other apparatus and methods for manufacturing 5 filter rods having particulate or granular smoke modifying material dispensed therein are proposed by Sexstone in U.S. Patent Nos. 3,884,741; 3,884,200;
3,957,563 and 4,016,830.
It would be highly desirable to provide an 10 apparatus and method for manufacturing cigarette filter rods having well controlled amounts of smoke modifying agent therein.
SUMMARY OF THE INVENTION
This invention relates to rods for use in the 15 manufacture of smoking articles such as cigarettes, wherein each rod has solid masses comprising aerosol modifying material individually spaced at predetermined intervals along the length thereof. Such rods can be manufactured in a continuous manner using an apparatus 20 having means for providing a continuous ~upply or 6tream of rod filler material; means for continuously inserting the individual solid masses comprising aerosol modifying material at predetermined intervals within the stream filler material 60 supplied; means 25 for forming a continuous rod having the individual solid masses positioned at predetermined intervals within the rod; and means for ~ubdividing the continuous rod at predetermined intervals.
As used herein, the term ~rod filler material~ is 30 meant to refer to the material which provides the majority of the volume of the rod; as for example, the filter material (eg., cellulose acetate tow) of a filter rod.
~29996~
More particularly, the present invention relates to an apparatus for providing rods such as filter rods for use in the manufacture of smoking articles 6uch as cigarettes. The apparatus includes a means for 5 supplying a continuous 6upply of rod filler material 6uch as a continuous web of filter material from a source of such material ~eg., a bale, bobbin, or the like). The apparatus also includes a means for supplying a continuous strand (eg., a bobbin of thermo-10 plastic 6trand) which is employed to provide thepelletized material. The apparatus further includes a pellet insertion unit for continuously forming pellets -from the strand and inserting or depositing the individual pellets at predetermined intervals within 15 the filler material 60 supplied (eg., within the web of filter material).
The pellet insertion unit includes a circular rotatable member (eg., a wheel) having a series of grooves or pockets positioned at predetermined intervals along the periphery of the rotatable wheel, and a retaining means (eg., ledger housing) including a strand inlet means for allowing introduction of the 6trand to successive pockets along the periphery of the wheel. The wheel and retaining means are arranged such 25 that (i) the interaction thereof causes the 6trand to be subdivided into pelletized form within each individual successive pocket, and (ii) the individual pellets are maintained within the respective pockets until each pellet is deposited within the filler 30 material so supplied. The apparatus further includes means for controlling the rate of supply of strand, the rate of rotation of the wheel, and the rate of 6upply of filler material such that the pellets are positioned at predetermined intervals within the 6tream of filler 35 material (eg., within the web of filter materiall.
~29996~
The filler material having each pellet deposited therein is received into a rod-making means for providing a continuous rod. The continuous rod is subdivided into the desired length at predetermined 5 intervals 6uch that the desired number of individual pellets are positioned within the individual subdivided segments (eg., four pellets can be positioned within a rod segment or filter rod thus providing a ~four up~
rod).
_ 10 As used herein, the term ~pellet~ refers to an essentially solid mass which has a spherical, cubic, cylindrical, or other such 6hape and in particular to a solid mass of a defined, controlled size and weight.
Of particular interest are pellets having an essen-15 tially cylindrical shape which are prepared from the controlled cutting of a strand of plasticized material.
The use of the apparatus provides the skilled artisan with an efficient and effective method for manufacturing rods such as filter rods for use in the 20 manufacture of smoking articles such as cigarettes.
Particularly preferred rods have filter material contained within a circumscribing outer wrap and the individual pellets are spaced within the rods at predetermined intervals along each rod. In particular, 25 such filter rods can be employed as filter elements for cigarettes wherein each filter element has a pellet positioned therewithin. If desired, two or more pellets can be individually positioned at desired intervals within each filter element.
Of particular interest are pellets which include, carry or contain a smoke modifying agent such as a flavorant. In such a manner, aerosol such as tobacco ~moke which travels through the filter element of the smoking article during draw can have flavorant 35 entrained in that aerosol.
The rods provided according to this invention can have a well controlled, consistent amount of smoke modifying agent positioned at relative ease at predetermined intervals along the length of each rod.
5 For example, the amount or type of smoke modifying agent carried or contained by a particular 6trand can be varied while the manner or process for making the ultimate rod is held essentially constant. Rods of this invention having the individual pellets of _ 10 controlled size positioned at predetermined intervals therein are of highly consistent quality as compared to rods having metered amounts of granular materials positioned therein. In addition, the quality of the rods can be well controlled, as electronic inspection 15 of the rods can easily provide for detection of éither the presence or absence of a pellet at the desired interval within each rod.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a diagrammatic illustration of one 20 embodiment of the rod-making apparatus including a portion of the filter tow processing unit, the source of strand for providing the pelletized material, the pellet insertion unit, and the rod-forming unit;
Figure 2 is an enlarged sectional illustration of 25 a portion of the pellet insertion unit;
Figure 3 is an exploded perspective of the separated elements of a portion of the pellet insertion unitt Figure 4 is an enlarged perspective of the pellet 30 insertion unit with a portion of the frame thereof ' shown as partially cut away ~' 1299961.
Figure 5 is an enlarged sectional illustration of a portion of the pellet insertion unit T
Figure 6 is an enlarged perspective of a portion of the pellet insertion unit;
Figure 7 is an enlarged perspective of a portion of the pellet insertion unit showing filter tow and the position of placement of a pellet within the filter material Figure 8 is a partial sectional view of a portion 10 of the pellet insertion unit showing placement of the pellet from a groove of the rotating wheel into the continuous web of fiber tow;
Figure 9 is a longitudinal sectional illustration of a filter rod including filter material and 15 pelletized material positioned at predetermined and controlled intervals therein; and Figure 10 is a longitudinal cross sectional illustration of a cigarette having a rod of smokable material, and an axially aligned filter element having 20 a pellet positioned therein.
DETAILED DESCRIPTION OF THE PREFERRED EM~ODIMENTS
Referring to Figure 1, an exemplary rod-making apparatus 10 includes a rod-making unit 14 and a pellet insertion unit 18 for pla~ing pelletized material at 25 predetermined intervals within a continuous length of filter material 22. The continuous length of filter material is supplied from a source lnot shown) such as a storage bale, bobbin, or the like. Generally, the filter material is processed using a filter material 30 processing unit 26. The continuous length of filter material 22 which has pelletized material incorporated : therein at predetermined, spaced intervals is passed ` 1299961 thr~ugh the rod-f~rming unit 1~ thereby forming a continuous rod 30, which can be subdivided by severing means 32 into a plurality of rods 34 which are collected using tray 38 or other suitable collection 5 means.
The pellet insertion unit 18 includes a rotatable member 50 having the shape of a wheel which is held in place within a ledger housing 53. The pellet insertion unit also includes a tube 56 or other means for feeding 10 or otherwise providing a passageway for continuous strand 59 into the ledger housing. The continuous strand is fed from a bobbin 61, or other means such as a coil.
Referring to Figure 2, strand 59 is pulled into 15 E;trand drive assembly 65 which includes inlet opening 67, outlet opening 69 into tube 56, and drive assembly including metering roller 71 and pressure roller 73.
The metering roller 71 and the pressure roller 73 are rotated in opposite directions as shown by arrows 75 20 and 77, respectively, such that the strand is pulled and then driven into the tube 56.
Typically, the metering roller 71 has a knurled surface and is manufactured from cold rolled steel, or other suitable material. The pressure roller 73 can 25 be manufactured from resilient rubber or any other suitable material. The relative speed of the two rollers can be preset in order to control the rate at which 6trand 59 is fed into tube 56. A suitable gear assembly ~not shown) for providing rotation of the 30 metering roller (and both the metering roller and pressure roller, if desired) will be apparent to the skilled artisan.
Referring to ~igure 3, the pellet insertion unit includes a rotatable wheel 50 having a series of 35 grooves or pockets 52 positioned at predetermined ~29996:1 intervals along the periphery 54 thereof. The series of grooves 52 which are positioned along the peripheral face 54 of the wheel are at equally spaced intervals.
The number of grooves present in the face of the wheel S generally is dependent upon the manner in which the strand is introduced to the pocket, the rate of rotation of the wheel relative to the rate of feed of filter material, and the desired spacing of the individual pellets within the filter rod. For example, _ 10 a wheel of about 5.3 inch diameter can have 20 grooves, the centers of which are equally spaced at a 21 mm distance. As another example, a wheel of about 5.4 inch diameter can have 14 grooves, the centers of which are equally spaced at 31 mm distance. The width of 15 each groove is less than the width of the face 54 of the wheel, and typically is determined by the diameter of the continuous strand which enters the groove (i.e., the width of the groove is greater than the diameter of the strand). The depth of the groove is dependent upon 20 the desired length of pellet. The wheel 50 is manufactured from pre-tempered, cold-rolled steel, or the like.
The width of wheel 50 is predetermined according to factors such as the circumference of the continuous 25 rod which is manufactured according to this invention and the diameter of the continuous strand which is employed. Generally, the width of the wheel i8 the width of the peripheral face 54 of the wheel. of particular interest is a wheel having a width of about 30 0.25 inch. A wheel with 6uch a width can conveniently be used for the manufacturing of rods having a circumference of about 25 mm. The diameter of the wheel S0 can vary. Typically, the diameter of the wheel is dictated by factors ~uch as the shape, ~pacing and number of pockets in the peripheral face thereof, and the rate at which the wheel is required to rotate.
Por most applications involving the manufacture of filter rods for smoking articles, the diameter of the 5 wheel preferably ranges from about 4 inches to about 8 inches.
A series of perforations 79 are positioned about the side face of wheel 50. The perforations each extend as passageways within and through the wheel, and 10 exit through the peripheral face of the wheel as perforations 80 within grooves 52. Thus, individual passageways from the side of the wheel to the bottom - face of each groove are provided for assisting in the removal of the pellet from the groove at desired time lS (as discussed in detail hereinafter).
The ledger housing 57 is positioned as a rim over the peripheral face 54 of the wheel S0 and is spaced from the wheel such that the wheel can rotate freely therein. An opening or passageway 82 through the upper 20 peripheral face of the ledger housing provides a means for the insertion or introduction of strand into the successive pockets along the periphery sf the wheel 50 (as discussed in detail hereinafter). A typical passageway 82 has a diameter which approximates the 25 width of the groove, and generally is about 3 mm. The ledger housing extends over the peripheral face of the wheel 50 to near that region where the pellet can be conveniently removed from the groove 52 and positioned within the filter material (as discussed in detail 30 hereinafter). Typically, the face of the-wheel 50 is not covered by the ledger housing 57 in the region where the pellet is released from the groove.
Preferably, the ledger housing provides a plow or shoe 87 to part or 6eparate the web of filter material to -- 129996~
ensure that the pellet is well positioned within the material (as discussed in detail hereinafter). The ledger housing is manufactured from pre-tempered, cold-rolled ~teel, or the like.
The wheel 50 is positioned within the led~er housing 57, and the two components are supported by housing support 90. The ledger housing is secured to the housing support by bolts 92, or other suitable fastening means. The wheel is secured for rotation 10 within the ledger housing by bolt 94, or other suitable fastening means, which is threaded into the axle-like rotatable support shaft 96 of the housing support 90.
- In such a manner the wheel can be rotated about its axis of rotation (shown as dotted line 99 in Figure 3).
15 In particular, the rotatable support shaft 96 extends through opening 101 in the ledger housing to be positioned in contact with the wheel 50 in order that rotation of the shaft will provide rotation of the wheel (i.e., act as a drive shaft for the wheel).
Referring to Figure 4, strand drive assembly 65, wheel 50, ledger housing 53 and housing support 90 are supported by frame 110 (which is shown as partially cut away). The frame 110 provides for secure positioning of the pellet insertion unit relative to the rod-making 25 unit.
Rotation of the drive shaft 96 is provided by a pulley, gear assembly, or other type of drive means (not shown) which is driven by belt 120 (shown in Figure 1) or other such means. Rotation of drive shaft 30 96 causes rotation of wheel 50 in the direction 6hown by arrow 121. The belt 120 which is used to provide rotation of drive shaft 96 is driven by pulley 122 or other suitable drive means ~shown in Figure 1)~ Pulley 122 is in turn driven by the rod making unit. A
~299961 suitable assembly for providing rotation of drive shaft 96 at a rate related to or controlled by the drive mechanism of the rod-making unit will be apparent to the skilled artisan.
Rotation of the drive 6haft 96 causes a rotation of pulley 128 or other suitable drive means. As shown in Figure 4, pulley 128 is positioned on drive shaft 96, and the rotation of pulley 128 causes rotation of pulley 130 by way of belt 133. The rotation of pulley 10 130 provides a means for driving shaft 139. Shaft 139 provides for the rotation of metering roller 71 within strand drive assembly 65 (see Figure 2). In such a manner, the rate of supply of web of filter material, the rate of rotation of the wheel of the pellet 15 insertion unit and the rate of supply of strand can be controlled such that the pellets which are formed are positioned at the desired, predetermined intervals within the web of filter material. In particular, the rate of feed of strand through the drive assembly 65, 20 the formation of the pelletized material within each groove 52, the rate of rotation of the wheel 50, and subsequent positioning of the pellets within the resulting filter rod are synchronized with respect to the rate at which the filter material 22 is fed into 25 the rod-forming unit 14. Other suitable configurations for providing a control of the feed of strand, rotation of wheel and feed of filter material may be apparent to the skilled artisan.
Referring to Figure 5, wheel 50 is rotated in the 30 direction shown by arrow 121. The wheel has a series of perforations 79 through the side face thereof. Each perforation 79 extends into the wheel thereby forming passageways 140 which exit as perforations 80 in the bottom face of the respective grooves 52. The wheel 50 -` ~29996~
is positioned with the rim-like ledger housing 57 so that the wheel can rotate freely therein. The ledger housing includes passageway 82 which extends through the upper peripheral face thereof in order that strand 5 59 can be inserted into the groove 52 of the wheel 50.
The perforations 79 and 80, and passageways 82 each preferably circular have cross sectional shapes, and diameters of about 1/16 inch. The strand 59 is fed through tube 56 ~shown as partially cut away) from the 10 drive assembly at a predetermined rate (as discussed previously).
The wheel and ledger housing are arranged such that the interaction thereof causes the strand to be subdivided into pelletized form thereby forming pellet 15 145 within each individual successive pocket. In particular, the rate of feed of strand, the rate of rotation of the wheel, the depth of the groove and the length of the groove are such that the strand can be fed into the groove and sheared to form pellet 145 of 20 the desired size. Preferably, each groove is generally wedge-shaped along the length thereof, wherein the depth of the groove extends from shallow to its maximum depth. In addition, the positioning of the grooves and the rotation of the wheel are such that the strand first enters the groove through passageway 82 in the ledger housing into the shallow portion of the groove, and then the strand is sheared to form pellet 145 when the foremost end of the strand approaches reaching the deep portion of the groove. Representative grooves 30 have lengths (as measured from the deepest portion of a groove to the deepest portion of an adjacent groove) of about 20 mm to about 35 mm and maximum depths of about 2.5 mm.
` ~129996~
Each generally wedge-shaped groove preferably has an abrupt surface extending from the deepest portion of the groove towards the periphery of the wheel. In such a manner, the rotating wheel and ledger housin~ can 5 interact such that the strand which extends into the groove can be sheared into the desired size thereby forming pellet 145. Such a cutting action is provided as a result of close spacing of the inner face of the ledger housing relative to the outer face of the wheel, 10 and the relatively small diameter of the passageway 82.
~ In particular, the strand is forced against the back face of the groove, and the resulting close spacing of the groove and the ledger housing acts to cut the strand into the form of a pellet. After a pellet is 15 formed, the strand is fed into the successive groove.
In such a manner, continuous formation of pellets is effected.
The individual pellets 145 remain well positioned in each respective groove until the insertion of the 20 pellet into the web of filter material is desired. In particular, the rim-like nature of the ledger housing 57 and plow 87 relative each groove 52, and the relative close spacing of the inner surface of the ledger housing and plow relative to the outer face of 25 the groove allows each individual pellet to be maintained within the respective groove, preferably without moving longitudinally within the groove, until each pellet is deposited within the web of filter material.
Referring to Figure 6, the continuous web of filter material 22 is fed into guide or block 151 (shown as partially cut away). The guide 151 receives the wide band of filter material, and gradually forms the web into a composite which generally resembles a ~29996~
cylindrical composite. ~he plow 87 of the ledger housin~ separates or spreads the filter material such that the pellet 145 is positioned or placed at the desired location within the web of filter material.
5 When the tow reaches the endmost portion of the plow, the motion of the tow acts to close itself into a cylindrical composite which contains the individual pellets at the desired locations therein. A suitable plow has a maximum depth of about 0.25 inch.
lOThe pellet is maintained within a groove until the ~ location at which the ledger housing does not cover the wheel as a rim, at which point the pellet is inserted into the web of filter material. Typically, the pellet falls (i.e., is rejected) from the groove and into the 15 web by the action of gravity.
Rejection of each pellet at the desired location can be assured by air jet 155 or other suitable means which can act as a nozzle. In particular, the nozzle 155 is positioned so as to force air into perforation 20 79 along the side face of wheel 50 which in turn exits the previously described perforation in the bottom of the groove. In such a manner, the action of gravity is assisted and the pellet is forced from the selected groove into the web of filter material at the desired 25 location. The nozzle 155 is held in place so as to be in registry with the desired perforation 79 in the side face of wheel 50 by frame 158 (shown as partially cut away). The air i8 received from a source ~not shown) such as a laboratory air supply through tube 161, or 30 other suitable means. Other techniques for assuring removal of each pellet from each groove at the desired location (eg., the use of mechanical or pneumatic ;plungers) may be apparent to the skilled artisan.
~ eferring to Figure 7, the guide or block 151 (the top portion of which is shown as partially cut away) has a relatively wide opening 165 at one end ln order that the filter material 22 can be fed therein. A
5 suitable wide opening is about 0.5 inch high and about 2.5 inches in width. A suitable block has a length of about 5.5 inches. The shape of the hollow inner portion of the block is such that the filter material is formed into a composite which more generally 10 resembles a cylinder. A suitable composite is about 9/16 inch in diameter. In particular, the inner portion of the block 151 is a hollow region or cavity -in order that the filter material can be passed therethrough. The block has a longitudinally extending 15 slot 168 along the top portion thereof in order to allow the rotating wheel and ledger housing (not shown) to extend into the web of filter material and to insert pellet 145 at the desired location therein. A suitable slot is about 4 inches long for a block having a length 20 of about 5.5 inches. In a suitable situation, the plow extends into the slot so as to extend about 1/8 inch from the extreme bottom portion of the hollow inner portion of the block. The cylindrical composite 170 is received by the receiving means of the rod-making unit 25 (as discussed hereinafter).
Referring to Figure 8, the plow 87 and wheel 50 extend into the block 151 (shown as a cut away sectional view) and into the web of filter material 22.
The pellet 145 is ejected from groove 52 (a portion of 30 wheel 50 is cut away) and into the web near the point at which the plow no longer acts as a rim over the peripheral face of the wheel. In such a manner, a 6eries of pellets 145, 171, 172 and 173 are positioned in the web at predetermined intervals within the ~29996~
cylindrical composite 170 which exits block 151 into a gathering means such as a tongue (not shown).
Referring again to Figure 1, filter material 22 is 8uppl ied and is passed into the rod forming unit 14.
5 ~or example, filamentary tow such as cellulose acetate is processed using a conventional filter tow processing unit such as a commercially available E-60 supplied by Arjay Equipment Corp., Winston-Salem, NC. A portion of such an apparatus is designated by reference numeral 26 10 in Figure 1. Normally a plasticizer such as triacetin is applied to the filamentary tow using known techniques.
The continuous length of filter material 22 is pulled through the block 151 by the action of the rod 15 forming unit 14 and the individual pellets are inserted at predetermined intervals within the web of filter material. The filter material is further directed into a gathering means 180 of the rod forming unit 14. The gathering means can have a tongue and horn 20 configuration, a gathering funnel configuration, stuffer or transport jet configuration, or the like.
The tongue 180 provides for further gathering, compaction, conversion or formation of the cylindrical composite from block 151 into an essentially 25 cylindrical ~i.e., rod-like) shape whereby the continuously extending strands or filaments of the filter material extend essentially along the longitudinal axis of the cylinder 60 formed.
The filter material which has been compressed into 30 a cylindrical composite i6 received into the rod-forming unit 14. The cylindrical composite is fed into wrapping mechanism 182 which includes endless garniture conveyer belt 184 or other garniture means.
The garniture conveyer belt 184 is continuously and 1299!~61 longitudinally advanced using advancing mechanism 186 such as a ribbon wheel or cooperating drum so as to transport the cylindrical composite through wrapping mechanism 182. The wrapping mechanism provides a strip 5 of wrapping material 188 to the outer surface of the cylindrical composite in order to produce continuous wrapped rod 30.
The strip of wrapping material 163 is provided from rotatable bobbin 190. The wrapping material is 10 drawn from the bobbin, is trained over a series of guide rollers, passes under block 151, and enters the wrapping mechanism 182 of the rod-forming unit. The endless garniture conveyer belt 184 transports both the strip of wrapping material and the cylindrical 15 composite in a longitudinally extending manner through the wrapping mechanism 182 while draping or enveloping the wrapping material about the cylindrical composite.
The seam formed by an overlapping marginal portion of wrapping material has adhesive (eg., hot melt adhesive) 20 applied thereto at applicator region 195 in order that the wrapping material can form a tubular container for the filter material. The adhesive can be cooled using chill bar 198 in order to cause rapid setting of the adhesive. It is understood that various other sealing 25 means and other types of adhesives can be employed in providing the continuous wrapped rod.
The continuous wrapped rod 30 passes from the sealing means and is subdivided (eg., severed) at regular intervals at the desired, predetermined length 30 using cutting assembly 32 which includes as a rotary cutter, a highly sharpened knife, or the like. It is particularly desirable that the cutting means not flatten or otherwise adversely affect the shape of the rod. The rate at which the cutting assembly severs the 129996~
continuous rod at the desired points is controlled relative to the rate at which the pellets are inserted into the continuous web of filter material. In particular, the cutting assembly is geared in a direct 5 drive relationship to the drive assembly of the rod-making apparatus. A suitable manner for providing the required timing for severing the continuous rod at the desired length and with the desired number of pellets positioned at the predetermined intervals lO therein will be apparent to the skilled artisan.
The succession or plurality of rods 34 are collected for use in collection means 38 which is a tray, a rotary collection drum, or the like. If desired, the rods can be transported directly to a 15 cigarette making machine. In such a manner, in excess of 1,400 rods, each of about 100 mm length, can be manufactured per minute.
The filter material can vary and is any material which can be employed in providing a tobacco smoke 20 filter for cigarettes. Especially preferred is filamentary tow such as cellulose acetate, poly-propylene, or the like. ~or example, cellulose acetate tow having 3 denier per filament and 35,000 total denier can provide a suitable filter rod. AS another 25 example, cellulose acetate tow having 8 denier per filament and 40,000 total denier can provide a suitable filter rod.
The continuous strand is most preferably a plasticized material. Most preferably the continuous 30 strand is provided from a thermoplastic material such as polyethylene, polypropylene, nylon, or the like.
- Typically, the strand consists principally of or consists essentially of high density polyethylene material having a generally circular cross section of ~299961 about 2.5 mm diameter. Examples of suitable strands are those strands which contain flavors and are available from Applied Fragrance Technologies, Inc., Mount Olive, NJ. For example, a suitable strand having 5 a circular cross section of 2.5 mm diameter, and containing high density polyethylene and menthol flavorant is obtained from Applied Fragrance Technologies, Inc., as Experimental Strand 4-53A.
~he strand most desirably has a consistency such 10 that the pellet insertion apparatus of this invention - can efficiently and effectively form pelletized material from the strand. For this reason, a material having a plasticized character is desirable. In particular, the strand should not be so resilient that 15 handling is difficult, or the interaction of ledger housing and wheel cannot cut the strand to a pellitized form. Furthermore, the preferred strand should not be so brittle that undesirable chipping or shattering of the strand and/or pellet occurs during the pellet 20 formation steps. However, the strand should have a fairly hard character in order to allow for efficient cutting or shearing of the strand to form the pellets.
For example, it is highly desirable that the strand not be 80 soft such that the strand does not cut cleanly.
In particular, overly 60ft strands may provide pellets having undesirable thin fibrous 6trands or ~hairs~
formed during the shearing operations.
The size and 6hape of the pellet can vary.
Generally, the pellet has a generally cylindrical 30 shape. Preferably, the pelletized material is of a 6ize such that each individual pellet can be positioned within the filter element of a cigarette without providing negative properties to the smoking article.
For example, it is desirable that the pellet not (i) " 1299961 stick out of the mouthend of the filter element or be otherwise visible (ii) be so large that the draw resistance of the smoking article be undesirably affected; or (iii) provide an undesirable weight or S feel to the smoking article. A suitable pellet for use in a filter element having a length of about 27 mm and a circumference of about 24.5 mm has a substantially cylindrical shape with a length of about 2.5 m~ and diameter of about 2.5 mm.
Most preferable strands (and hence the resulting pelletized material) act as substrates for carrying or containing 6moke modifying agents such ~s flavorants, salivators, or the like. The amount of smoke modifying agent carried or contained by an individual pellet 15 depends upon the properties and characteristics of the smoke modifying agent, the characteristics of the polymer system substrate, the surface area of the pellet, the desired delivery of smoke modifying agent, and other ~uch factors.
Referring to Figure 9, filter rod 34 generally can be further subdivided into cylindrical shaped filter elements using techniques as are known by the skilled artisan familiar with conventional cigarette manu-facturing. The filter rod 34 includes filter material 25 22 encased in circumscribing wrapping material 188 such as conventional air permeable or air impermeable paper plug wrap, or other suitable wrapping material. As an example, four pellets 208, 209, 210 and 211 are individually spaced at predetermined intervals within 30 the rod 34. In particular, each of the pellet~ are positioned along the rod in a spaced apart relationship from one another. As shown by lines 1-1, 2-2 and 3-3, respectively, the rod can be used as a ~four up~ rod to provide four filter elements. other configurations ~ ~299961 such as the so called ~six up~ rods also can be manufactured. Rod sizes for use in the manufacture of filter elements for cigarettes can vary, but typically range in length from about 80 mm to about 140 mm, and 5 from about 16 mm to about 27 mm in circumference. For example, a typical rod having a 100 mm length and a 24.53 mm circumference exhibits a pressure drop of from about 200 mm to about 400 mm of water as determined at an airflow rate of 17.5 cc/sec. using an encapsulated 10 pressure drop tester, sold commercially as Model No.
- FTS-300 by Filtrona Corporation.
Referring to Figure 10, smoking article 190 has the form of a cigarette. The article 220 includes rod 222 including smokable material such as tobacco cut 15 filler 224, or the like, contained in circumscribing wrapping material 226 such a conventional cigarette paper wrap. ~he ends of the rod are open to expose the smokable material. Generally, the length of the rod 222 ranges from about 55 mm to about 85 mm. The 20 gmoking article further includes filter element 226 positioned adjacent one end of rod 222 such that the filter element is aligned with the rod in an end-to-end relationship. Filter element 226 has a cross sectional ~hape similar to that of rod 222. The filter element 25 226 is provided from filter rod, the previously described filter rod and includes filter material 22, circumscribing plug wrap 188 and an individual pellet 208. The pellet 208 is a solid mass positioned within the filter element such that the pellet cannot be 30 observed by visual inspection of the extreme mouthend of the cigarette. For example, the pellet is centrally located longitudinally within the filter rod. The filter element 226 is attached to the rod 222 by tipping material 228 which circumscribes both the filter element and an adjacent region of the rod. The inner surface of the tipping material 228 is fixedly secured ~eg., using an adhesive~ to the outer surface of the filter element 226 and to the wrapping material 226 of an adjacent region of the rod 222. The tipping material 228 circumscribes the rod 222 over a longitudinal length which can vary but is typically that length sufficient to provide good attachment of the filter element to the rod. The tipping material can be a c~nventional air permeable or air impermeable tipping paper. The cigarette can be equipped with air dilution perforations or other means for providing air dilution thereto, if desired. It is understood that more than one individually placed pellet can be positioned within the filter element, if desired.
Smoke modifying agents which are carried or contained by the pellets include flavorants ~uch as menthol, cinnamon, citrus, cocoa, licorice, tobacco extract, nicotine, and the like. For example, a typical filter element can contain one pellet containing from about 1 to about 10 percent of menthol, based on the total weight of the pellet. The use of flavor-containing pellets in filter elements of smoking articles provides for a well controlled application of desirable ingredients such as flavors into the smoking article. Of particular interest is the fact that certain materials can provide a continuous, controlled release of certain ingredients over time. In addition, the level of flavorant delivered to the user can be well controlled, as when the flavorant is entrained in the mainstream aerosol during draw. As the flavorants are delivered to an appreciable degree from the filter element of the smoking article, a relatively large amount of flavorant is not subjected to the high - ~299961 temperatures experienced in other regions of the smoking article (eg., in the tobacco rod). In addition, the filter element is capable of modifying ~eg., flavoring) the aerosol delivered by a smoking S article without the necessity of noticeably affecting the appearance or structure of the smoking article.
BACKGRO~ND OF THE INVENTION
The present invention relates to the manufacture 5 of rods such as are useful for the manufacture of filter elements for smoking articles, and in partic-ular, to filter rods having pelletized materials spaced at predetermined intervals therein.
Popular smoking articles such as cigarettes have a 10 ~ubstantially cylindrical rod ~haped structure and include a charge of smokable material such as shredded tobacco (eg., cut filler) surrounded by a paper wrapper thereby forming a ~o-called ~tobacco rod.~ It has become desirable to manufacture cigarettes having 15 cylindrical filter elements aligned in an end-to-end relationship with the tobacco rod. Typically, filter elements are manufactured from fibrous materials such as cellulose acetate tow which i8 circumscribed by plug wrap. The filter element is attached to the tobacco 20 rod using a circumscribing tipping material. The filter elements generally are provided from 80 called ~filter rods.~
Apparatus and methods for providing a cigarette filter rod containing a ~moke modifying agent are 25 proposed by Pryor in V.S. Patent Nos. 4,549,875;
4,525,385 and 4,476,807. Another type of cigarette :`
filter rod having a continuous flavored thread incorporated therein or wrapped in flavored tape is proposed by Bynre et al in U.S. Patent ~o. 4,281,671.
Still other apparatus and methods for manufacturing 5 filter rods having particulate or granular smoke modifying material dispensed therein are proposed by Sexstone in U.S. Patent Nos. 3,884,741; 3,884,200;
3,957,563 and 4,016,830.
It would be highly desirable to provide an 10 apparatus and method for manufacturing cigarette filter rods having well controlled amounts of smoke modifying agent therein.
SUMMARY OF THE INVENTION
This invention relates to rods for use in the 15 manufacture of smoking articles such as cigarettes, wherein each rod has solid masses comprising aerosol modifying material individually spaced at predetermined intervals along the length thereof. Such rods can be manufactured in a continuous manner using an apparatus 20 having means for providing a continuous ~upply or 6tream of rod filler material; means for continuously inserting the individual solid masses comprising aerosol modifying material at predetermined intervals within the stream filler material 60 supplied; means 25 for forming a continuous rod having the individual solid masses positioned at predetermined intervals within the rod; and means for ~ubdividing the continuous rod at predetermined intervals.
As used herein, the term ~rod filler material~ is 30 meant to refer to the material which provides the majority of the volume of the rod; as for example, the filter material (eg., cellulose acetate tow) of a filter rod.
~29996~
More particularly, the present invention relates to an apparatus for providing rods such as filter rods for use in the manufacture of smoking articles 6uch as cigarettes. The apparatus includes a means for 5 supplying a continuous 6upply of rod filler material 6uch as a continuous web of filter material from a source of such material ~eg., a bale, bobbin, or the like). The apparatus also includes a means for supplying a continuous strand (eg., a bobbin of thermo-10 plastic 6trand) which is employed to provide thepelletized material. The apparatus further includes a pellet insertion unit for continuously forming pellets -from the strand and inserting or depositing the individual pellets at predetermined intervals within 15 the filler material 60 supplied (eg., within the web of filter material).
The pellet insertion unit includes a circular rotatable member (eg., a wheel) having a series of grooves or pockets positioned at predetermined intervals along the periphery of the rotatable wheel, and a retaining means (eg., ledger housing) including a strand inlet means for allowing introduction of the 6trand to successive pockets along the periphery of the wheel. The wheel and retaining means are arranged such 25 that (i) the interaction thereof causes the 6trand to be subdivided into pelletized form within each individual successive pocket, and (ii) the individual pellets are maintained within the respective pockets until each pellet is deposited within the filler 30 material so supplied. The apparatus further includes means for controlling the rate of supply of strand, the rate of rotation of the wheel, and the rate of 6upply of filler material such that the pellets are positioned at predetermined intervals within the 6tream of filler 35 material (eg., within the web of filter materiall.
~29996~
The filler material having each pellet deposited therein is received into a rod-making means for providing a continuous rod. The continuous rod is subdivided into the desired length at predetermined 5 intervals 6uch that the desired number of individual pellets are positioned within the individual subdivided segments (eg., four pellets can be positioned within a rod segment or filter rod thus providing a ~four up~
rod).
_ 10 As used herein, the term ~pellet~ refers to an essentially solid mass which has a spherical, cubic, cylindrical, or other such 6hape and in particular to a solid mass of a defined, controlled size and weight.
Of particular interest are pellets having an essen-15 tially cylindrical shape which are prepared from the controlled cutting of a strand of plasticized material.
The use of the apparatus provides the skilled artisan with an efficient and effective method for manufacturing rods such as filter rods for use in the 20 manufacture of smoking articles such as cigarettes.
Particularly preferred rods have filter material contained within a circumscribing outer wrap and the individual pellets are spaced within the rods at predetermined intervals along each rod. In particular, 25 such filter rods can be employed as filter elements for cigarettes wherein each filter element has a pellet positioned therewithin. If desired, two or more pellets can be individually positioned at desired intervals within each filter element.
Of particular interest are pellets which include, carry or contain a smoke modifying agent such as a flavorant. In such a manner, aerosol such as tobacco ~moke which travels through the filter element of the smoking article during draw can have flavorant 35 entrained in that aerosol.
The rods provided according to this invention can have a well controlled, consistent amount of smoke modifying agent positioned at relative ease at predetermined intervals along the length of each rod.
5 For example, the amount or type of smoke modifying agent carried or contained by a particular 6trand can be varied while the manner or process for making the ultimate rod is held essentially constant. Rods of this invention having the individual pellets of _ 10 controlled size positioned at predetermined intervals therein are of highly consistent quality as compared to rods having metered amounts of granular materials positioned therein. In addition, the quality of the rods can be well controlled, as electronic inspection 15 of the rods can easily provide for detection of éither the presence or absence of a pellet at the desired interval within each rod.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a diagrammatic illustration of one 20 embodiment of the rod-making apparatus including a portion of the filter tow processing unit, the source of strand for providing the pelletized material, the pellet insertion unit, and the rod-forming unit;
Figure 2 is an enlarged sectional illustration of 25 a portion of the pellet insertion unit;
Figure 3 is an exploded perspective of the separated elements of a portion of the pellet insertion unitt Figure 4 is an enlarged perspective of the pellet 30 insertion unit with a portion of the frame thereof ' shown as partially cut away ~' 1299961.
Figure 5 is an enlarged sectional illustration of a portion of the pellet insertion unit T
Figure 6 is an enlarged perspective of a portion of the pellet insertion unit;
Figure 7 is an enlarged perspective of a portion of the pellet insertion unit showing filter tow and the position of placement of a pellet within the filter material Figure 8 is a partial sectional view of a portion 10 of the pellet insertion unit showing placement of the pellet from a groove of the rotating wheel into the continuous web of fiber tow;
Figure 9 is a longitudinal sectional illustration of a filter rod including filter material and 15 pelletized material positioned at predetermined and controlled intervals therein; and Figure 10 is a longitudinal cross sectional illustration of a cigarette having a rod of smokable material, and an axially aligned filter element having 20 a pellet positioned therein.
DETAILED DESCRIPTION OF THE PREFERRED EM~ODIMENTS
Referring to Figure 1, an exemplary rod-making apparatus 10 includes a rod-making unit 14 and a pellet insertion unit 18 for pla~ing pelletized material at 25 predetermined intervals within a continuous length of filter material 22. The continuous length of filter material is supplied from a source lnot shown) such as a storage bale, bobbin, or the like. Generally, the filter material is processed using a filter material 30 processing unit 26. The continuous length of filter material 22 which has pelletized material incorporated : therein at predetermined, spaced intervals is passed ` 1299961 thr~ugh the rod-f~rming unit 1~ thereby forming a continuous rod 30, which can be subdivided by severing means 32 into a plurality of rods 34 which are collected using tray 38 or other suitable collection 5 means.
The pellet insertion unit 18 includes a rotatable member 50 having the shape of a wheel which is held in place within a ledger housing 53. The pellet insertion unit also includes a tube 56 or other means for feeding 10 or otherwise providing a passageway for continuous strand 59 into the ledger housing. The continuous strand is fed from a bobbin 61, or other means such as a coil.
Referring to Figure 2, strand 59 is pulled into 15 E;trand drive assembly 65 which includes inlet opening 67, outlet opening 69 into tube 56, and drive assembly including metering roller 71 and pressure roller 73.
The metering roller 71 and the pressure roller 73 are rotated in opposite directions as shown by arrows 75 20 and 77, respectively, such that the strand is pulled and then driven into the tube 56.
Typically, the metering roller 71 has a knurled surface and is manufactured from cold rolled steel, or other suitable material. The pressure roller 73 can 25 be manufactured from resilient rubber or any other suitable material. The relative speed of the two rollers can be preset in order to control the rate at which 6trand 59 is fed into tube 56. A suitable gear assembly ~not shown) for providing rotation of the 30 metering roller (and both the metering roller and pressure roller, if desired) will be apparent to the skilled artisan.
Referring to ~igure 3, the pellet insertion unit includes a rotatable wheel 50 having a series of 35 grooves or pockets 52 positioned at predetermined ~29996:1 intervals along the periphery 54 thereof. The series of grooves 52 which are positioned along the peripheral face 54 of the wheel are at equally spaced intervals.
The number of grooves present in the face of the wheel S generally is dependent upon the manner in which the strand is introduced to the pocket, the rate of rotation of the wheel relative to the rate of feed of filter material, and the desired spacing of the individual pellets within the filter rod. For example, _ 10 a wheel of about 5.3 inch diameter can have 20 grooves, the centers of which are equally spaced at a 21 mm distance. As another example, a wheel of about 5.4 inch diameter can have 14 grooves, the centers of which are equally spaced at 31 mm distance. The width of 15 each groove is less than the width of the face 54 of the wheel, and typically is determined by the diameter of the continuous strand which enters the groove (i.e., the width of the groove is greater than the diameter of the strand). The depth of the groove is dependent upon 20 the desired length of pellet. The wheel 50 is manufactured from pre-tempered, cold-rolled steel, or the like.
The width of wheel 50 is predetermined according to factors such as the circumference of the continuous 25 rod which is manufactured according to this invention and the diameter of the continuous strand which is employed. Generally, the width of the wheel i8 the width of the peripheral face 54 of the wheel. of particular interest is a wheel having a width of about 30 0.25 inch. A wheel with 6uch a width can conveniently be used for the manufacturing of rods having a circumference of about 25 mm. The diameter of the wheel S0 can vary. Typically, the diameter of the wheel is dictated by factors ~uch as the shape, ~pacing and number of pockets in the peripheral face thereof, and the rate at which the wheel is required to rotate.
Por most applications involving the manufacture of filter rods for smoking articles, the diameter of the 5 wheel preferably ranges from about 4 inches to about 8 inches.
A series of perforations 79 are positioned about the side face of wheel 50. The perforations each extend as passageways within and through the wheel, and 10 exit through the peripheral face of the wheel as perforations 80 within grooves 52. Thus, individual passageways from the side of the wheel to the bottom - face of each groove are provided for assisting in the removal of the pellet from the groove at desired time lS (as discussed in detail hereinafter).
The ledger housing 57 is positioned as a rim over the peripheral face 54 of the wheel S0 and is spaced from the wheel such that the wheel can rotate freely therein. An opening or passageway 82 through the upper 20 peripheral face of the ledger housing provides a means for the insertion or introduction of strand into the successive pockets along the periphery sf the wheel 50 (as discussed in detail hereinafter). A typical passageway 82 has a diameter which approximates the 25 width of the groove, and generally is about 3 mm. The ledger housing extends over the peripheral face of the wheel 50 to near that region where the pellet can be conveniently removed from the groove 52 and positioned within the filter material (as discussed in detail 30 hereinafter). Typically, the face of the-wheel 50 is not covered by the ledger housing 57 in the region where the pellet is released from the groove.
Preferably, the ledger housing provides a plow or shoe 87 to part or 6eparate the web of filter material to -- 129996~
ensure that the pellet is well positioned within the material (as discussed in detail hereinafter). The ledger housing is manufactured from pre-tempered, cold-rolled ~teel, or the like.
The wheel 50 is positioned within the led~er housing 57, and the two components are supported by housing support 90. The ledger housing is secured to the housing support by bolts 92, or other suitable fastening means. The wheel is secured for rotation 10 within the ledger housing by bolt 94, or other suitable fastening means, which is threaded into the axle-like rotatable support shaft 96 of the housing support 90.
- In such a manner the wheel can be rotated about its axis of rotation (shown as dotted line 99 in Figure 3).
15 In particular, the rotatable support shaft 96 extends through opening 101 in the ledger housing to be positioned in contact with the wheel 50 in order that rotation of the shaft will provide rotation of the wheel (i.e., act as a drive shaft for the wheel).
Referring to Figure 4, strand drive assembly 65, wheel 50, ledger housing 53 and housing support 90 are supported by frame 110 (which is shown as partially cut away). The frame 110 provides for secure positioning of the pellet insertion unit relative to the rod-making 25 unit.
Rotation of the drive shaft 96 is provided by a pulley, gear assembly, or other type of drive means (not shown) which is driven by belt 120 (shown in Figure 1) or other such means. Rotation of drive shaft 30 96 causes rotation of wheel 50 in the direction 6hown by arrow 121. The belt 120 which is used to provide rotation of drive shaft 96 is driven by pulley 122 or other suitable drive means ~shown in Figure 1)~ Pulley 122 is in turn driven by the rod making unit. A
~299961 suitable assembly for providing rotation of drive shaft 96 at a rate related to or controlled by the drive mechanism of the rod-making unit will be apparent to the skilled artisan.
Rotation of the drive 6haft 96 causes a rotation of pulley 128 or other suitable drive means. As shown in Figure 4, pulley 128 is positioned on drive shaft 96, and the rotation of pulley 128 causes rotation of pulley 130 by way of belt 133. The rotation of pulley 10 130 provides a means for driving shaft 139. Shaft 139 provides for the rotation of metering roller 71 within strand drive assembly 65 (see Figure 2). In such a manner, the rate of supply of web of filter material, the rate of rotation of the wheel of the pellet 15 insertion unit and the rate of supply of strand can be controlled such that the pellets which are formed are positioned at the desired, predetermined intervals within the web of filter material. In particular, the rate of feed of strand through the drive assembly 65, 20 the formation of the pelletized material within each groove 52, the rate of rotation of the wheel 50, and subsequent positioning of the pellets within the resulting filter rod are synchronized with respect to the rate at which the filter material 22 is fed into 25 the rod-forming unit 14. Other suitable configurations for providing a control of the feed of strand, rotation of wheel and feed of filter material may be apparent to the skilled artisan.
Referring to Figure 5, wheel 50 is rotated in the 30 direction shown by arrow 121. The wheel has a series of perforations 79 through the side face thereof. Each perforation 79 extends into the wheel thereby forming passageways 140 which exit as perforations 80 in the bottom face of the respective grooves 52. The wheel 50 -` ~29996~
is positioned with the rim-like ledger housing 57 so that the wheel can rotate freely therein. The ledger housing includes passageway 82 which extends through the upper peripheral face thereof in order that strand 5 59 can be inserted into the groove 52 of the wheel 50.
The perforations 79 and 80, and passageways 82 each preferably circular have cross sectional shapes, and diameters of about 1/16 inch. The strand 59 is fed through tube 56 ~shown as partially cut away) from the 10 drive assembly at a predetermined rate (as discussed previously).
The wheel and ledger housing are arranged such that the interaction thereof causes the strand to be subdivided into pelletized form thereby forming pellet 15 145 within each individual successive pocket. In particular, the rate of feed of strand, the rate of rotation of the wheel, the depth of the groove and the length of the groove are such that the strand can be fed into the groove and sheared to form pellet 145 of 20 the desired size. Preferably, each groove is generally wedge-shaped along the length thereof, wherein the depth of the groove extends from shallow to its maximum depth. In addition, the positioning of the grooves and the rotation of the wheel are such that the strand first enters the groove through passageway 82 in the ledger housing into the shallow portion of the groove, and then the strand is sheared to form pellet 145 when the foremost end of the strand approaches reaching the deep portion of the groove. Representative grooves 30 have lengths (as measured from the deepest portion of a groove to the deepest portion of an adjacent groove) of about 20 mm to about 35 mm and maximum depths of about 2.5 mm.
` ~129996~
Each generally wedge-shaped groove preferably has an abrupt surface extending from the deepest portion of the groove towards the periphery of the wheel. In such a manner, the rotating wheel and ledger housin~ can 5 interact such that the strand which extends into the groove can be sheared into the desired size thereby forming pellet 145. Such a cutting action is provided as a result of close spacing of the inner face of the ledger housing relative to the outer face of the wheel, 10 and the relatively small diameter of the passageway 82.
~ In particular, the strand is forced against the back face of the groove, and the resulting close spacing of the groove and the ledger housing acts to cut the strand into the form of a pellet. After a pellet is 15 formed, the strand is fed into the successive groove.
In such a manner, continuous formation of pellets is effected.
The individual pellets 145 remain well positioned in each respective groove until the insertion of the 20 pellet into the web of filter material is desired. In particular, the rim-like nature of the ledger housing 57 and plow 87 relative each groove 52, and the relative close spacing of the inner surface of the ledger housing and plow relative to the outer face of 25 the groove allows each individual pellet to be maintained within the respective groove, preferably without moving longitudinally within the groove, until each pellet is deposited within the web of filter material.
Referring to Figure 6, the continuous web of filter material 22 is fed into guide or block 151 (shown as partially cut away). The guide 151 receives the wide band of filter material, and gradually forms the web into a composite which generally resembles a ~29996~
cylindrical composite. ~he plow 87 of the ledger housin~ separates or spreads the filter material such that the pellet 145 is positioned or placed at the desired location within the web of filter material.
5 When the tow reaches the endmost portion of the plow, the motion of the tow acts to close itself into a cylindrical composite which contains the individual pellets at the desired locations therein. A suitable plow has a maximum depth of about 0.25 inch.
lOThe pellet is maintained within a groove until the ~ location at which the ledger housing does not cover the wheel as a rim, at which point the pellet is inserted into the web of filter material. Typically, the pellet falls (i.e., is rejected) from the groove and into the 15 web by the action of gravity.
Rejection of each pellet at the desired location can be assured by air jet 155 or other suitable means which can act as a nozzle. In particular, the nozzle 155 is positioned so as to force air into perforation 20 79 along the side face of wheel 50 which in turn exits the previously described perforation in the bottom of the groove. In such a manner, the action of gravity is assisted and the pellet is forced from the selected groove into the web of filter material at the desired 25 location. The nozzle 155 is held in place so as to be in registry with the desired perforation 79 in the side face of wheel 50 by frame 158 (shown as partially cut away). The air i8 received from a source ~not shown) such as a laboratory air supply through tube 161, or 30 other suitable means. Other techniques for assuring removal of each pellet from each groove at the desired location (eg., the use of mechanical or pneumatic ;plungers) may be apparent to the skilled artisan.
~ eferring to Figure 7, the guide or block 151 (the top portion of which is shown as partially cut away) has a relatively wide opening 165 at one end ln order that the filter material 22 can be fed therein. A
5 suitable wide opening is about 0.5 inch high and about 2.5 inches in width. A suitable block has a length of about 5.5 inches. The shape of the hollow inner portion of the block is such that the filter material is formed into a composite which more generally 10 resembles a cylinder. A suitable composite is about 9/16 inch in diameter. In particular, the inner portion of the block 151 is a hollow region or cavity -in order that the filter material can be passed therethrough. The block has a longitudinally extending 15 slot 168 along the top portion thereof in order to allow the rotating wheel and ledger housing (not shown) to extend into the web of filter material and to insert pellet 145 at the desired location therein. A suitable slot is about 4 inches long for a block having a length 20 of about 5.5 inches. In a suitable situation, the plow extends into the slot so as to extend about 1/8 inch from the extreme bottom portion of the hollow inner portion of the block. The cylindrical composite 170 is received by the receiving means of the rod-making unit 25 (as discussed hereinafter).
Referring to Figure 8, the plow 87 and wheel 50 extend into the block 151 (shown as a cut away sectional view) and into the web of filter material 22.
The pellet 145 is ejected from groove 52 (a portion of 30 wheel 50 is cut away) and into the web near the point at which the plow no longer acts as a rim over the peripheral face of the wheel. In such a manner, a 6eries of pellets 145, 171, 172 and 173 are positioned in the web at predetermined intervals within the ~29996~
cylindrical composite 170 which exits block 151 into a gathering means such as a tongue (not shown).
Referring again to Figure 1, filter material 22 is 8uppl ied and is passed into the rod forming unit 14.
5 ~or example, filamentary tow such as cellulose acetate is processed using a conventional filter tow processing unit such as a commercially available E-60 supplied by Arjay Equipment Corp., Winston-Salem, NC. A portion of such an apparatus is designated by reference numeral 26 10 in Figure 1. Normally a plasticizer such as triacetin is applied to the filamentary tow using known techniques.
The continuous length of filter material 22 is pulled through the block 151 by the action of the rod 15 forming unit 14 and the individual pellets are inserted at predetermined intervals within the web of filter material. The filter material is further directed into a gathering means 180 of the rod forming unit 14. The gathering means can have a tongue and horn 20 configuration, a gathering funnel configuration, stuffer or transport jet configuration, or the like.
The tongue 180 provides for further gathering, compaction, conversion or formation of the cylindrical composite from block 151 into an essentially 25 cylindrical ~i.e., rod-like) shape whereby the continuously extending strands or filaments of the filter material extend essentially along the longitudinal axis of the cylinder 60 formed.
The filter material which has been compressed into 30 a cylindrical composite i6 received into the rod-forming unit 14. The cylindrical composite is fed into wrapping mechanism 182 which includes endless garniture conveyer belt 184 or other garniture means.
The garniture conveyer belt 184 is continuously and 1299!~61 longitudinally advanced using advancing mechanism 186 such as a ribbon wheel or cooperating drum so as to transport the cylindrical composite through wrapping mechanism 182. The wrapping mechanism provides a strip 5 of wrapping material 188 to the outer surface of the cylindrical composite in order to produce continuous wrapped rod 30.
The strip of wrapping material 163 is provided from rotatable bobbin 190. The wrapping material is 10 drawn from the bobbin, is trained over a series of guide rollers, passes under block 151, and enters the wrapping mechanism 182 of the rod-forming unit. The endless garniture conveyer belt 184 transports both the strip of wrapping material and the cylindrical 15 composite in a longitudinally extending manner through the wrapping mechanism 182 while draping or enveloping the wrapping material about the cylindrical composite.
The seam formed by an overlapping marginal portion of wrapping material has adhesive (eg., hot melt adhesive) 20 applied thereto at applicator region 195 in order that the wrapping material can form a tubular container for the filter material. The adhesive can be cooled using chill bar 198 in order to cause rapid setting of the adhesive. It is understood that various other sealing 25 means and other types of adhesives can be employed in providing the continuous wrapped rod.
The continuous wrapped rod 30 passes from the sealing means and is subdivided (eg., severed) at regular intervals at the desired, predetermined length 30 using cutting assembly 32 which includes as a rotary cutter, a highly sharpened knife, or the like. It is particularly desirable that the cutting means not flatten or otherwise adversely affect the shape of the rod. The rate at which the cutting assembly severs the 129996~
continuous rod at the desired points is controlled relative to the rate at which the pellets are inserted into the continuous web of filter material. In particular, the cutting assembly is geared in a direct 5 drive relationship to the drive assembly of the rod-making apparatus. A suitable manner for providing the required timing for severing the continuous rod at the desired length and with the desired number of pellets positioned at the predetermined intervals lO therein will be apparent to the skilled artisan.
The succession or plurality of rods 34 are collected for use in collection means 38 which is a tray, a rotary collection drum, or the like. If desired, the rods can be transported directly to a 15 cigarette making machine. In such a manner, in excess of 1,400 rods, each of about 100 mm length, can be manufactured per minute.
The filter material can vary and is any material which can be employed in providing a tobacco smoke 20 filter for cigarettes. Especially preferred is filamentary tow such as cellulose acetate, poly-propylene, or the like. ~or example, cellulose acetate tow having 3 denier per filament and 35,000 total denier can provide a suitable filter rod. AS another 25 example, cellulose acetate tow having 8 denier per filament and 40,000 total denier can provide a suitable filter rod.
The continuous strand is most preferably a plasticized material. Most preferably the continuous 30 strand is provided from a thermoplastic material such as polyethylene, polypropylene, nylon, or the like.
- Typically, the strand consists principally of or consists essentially of high density polyethylene material having a generally circular cross section of ~299961 about 2.5 mm diameter. Examples of suitable strands are those strands which contain flavors and are available from Applied Fragrance Technologies, Inc., Mount Olive, NJ. For example, a suitable strand having 5 a circular cross section of 2.5 mm diameter, and containing high density polyethylene and menthol flavorant is obtained from Applied Fragrance Technologies, Inc., as Experimental Strand 4-53A.
~he strand most desirably has a consistency such 10 that the pellet insertion apparatus of this invention - can efficiently and effectively form pelletized material from the strand. For this reason, a material having a plasticized character is desirable. In particular, the strand should not be so resilient that 15 handling is difficult, or the interaction of ledger housing and wheel cannot cut the strand to a pellitized form. Furthermore, the preferred strand should not be so brittle that undesirable chipping or shattering of the strand and/or pellet occurs during the pellet 20 formation steps. However, the strand should have a fairly hard character in order to allow for efficient cutting or shearing of the strand to form the pellets.
For example, it is highly desirable that the strand not be 80 soft such that the strand does not cut cleanly.
In particular, overly 60ft strands may provide pellets having undesirable thin fibrous 6trands or ~hairs~
formed during the shearing operations.
The size and 6hape of the pellet can vary.
Generally, the pellet has a generally cylindrical 30 shape. Preferably, the pelletized material is of a 6ize such that each individual pellet can be positioned within the filter element of a cigarette without providing negative properties to the smoking article.
For example, it is desirable that the pellet not (i) " 1299961 stick out of the mouthend of the filter element or be otherwise visible (ii) be so large that the draw resistance of the smoking article be undesirably affected; or (iii) provide an undesirable weight or S feel to the smoking article. A suitable pellet for use in a filter element having a length of about 27 mm and a circumference of about 24.5 mm has a substantially cylindrical shape with a length of about 2.5 m~ and diameter of about 2.5 mm.
Most preferable strands (and hence the resulting pelletized material) act as substrates for carrying or containing 6moke modifying agents such ~s flavorants, salivators, or the like. The amount of smoke modifying agent carried or contained by an individual pellet 15 depends upon the properties and characteristics of the smoke modifying agent, the characteristics of the polymer system substrate, the surface area of the pellet, the desired delivery of smoke modifying agent, and other ~uch factors.
Referring to Figure 9, filter rod 34 generally can be further subdivided into cylindrical shaped filter elements using techniques as are known by the skilled artisan familiar with conventional cigarette manu-facturing. The filter rod 34 includes filter material 25 22 encased in circumscribing wrapping material 188 such as conventional air permeable or air impermeable paper plug wrap, or other suitable wrapping material. As an example, four pellets 208, 209, 210 and 211 are individually spaced at predetermined intervals within 30 the rod 34. In particular, each of the pellet~ are positioned along the rod in a spaced apart relationship from one another. As shown by lines 1-1, 2-2 and 3-3, respectively, the rod can be used as a ~four up~ rod to provide four filter elements. other configurations ~ ~299961 such as the so called ~six up~ rods also can be manufactured. Rod sizes for use in the manufacture of filter elements for cigarettes can vary, but typically range in length from about 80 mm to about 140 mm, and 5 from about 16 mm to about 27 mm in circumference. For example, a typical rod having a 100 mm length and a 24.53 mm circumference exhibits a pressure drop of from about 200 mm to about 400 mm of water as determined at an airflow rate of 17.5 cc/sec. using an encapsulated 10 pressure drop tester, sold commercially as Model No.
- FTS-300 by Filtrona Corporation.
Referring to Figure 10, smoking article 190 has the form of a cigarette. The article 220 includes rod 222 including smokable material such as tobacco cut 15 filler 224, or the like, contained in circumscribing wrapping material 226 such a conventional cigarette paper wrap. ~he ends of the rod are open to expose the smokable material. Generally, the length of the rod 222 ranges from about 55 mm to about 85 mm. The 20 gmoking article further includes filter element 226 positioned adjacent one end of rod 222 such that the filter element is aligned with the rod in an end-to-end relationship. Filter element 226 has a cross sectional ~hape similar to that of rod 222. The filter element 25 226 is provided from filter rod, the previously described filter rod and includes filter material 22, circumscribing plug wrap 188 and an individual pellet 208. The pellet 208 is a solid mass positioned within the filter element such that the pellet cannot be 30 observed by visual inspection of the extreme mouthend of the cigarette. For example, the pellet is centrally located longitudinally within the filter rod. The filter element 226 is attached to the rod 222 by tipping material 228 which circumscribes both the filter element and an adjacent region of the rod. The inner surface of the tipping material 228 is fixedly secured ~eg., using an adhesive~ to the outer surface of the filter element 226 and to the wrapping material 226 of an adjacent region of the rod 222. The tipping material 228 circumscribes the rod 222 over a longitudinal length which can vary but is typically that length sufficient to provide good attachment of the filter element to the rod. The tipping material can be a c~nventional air permeable or air impermeable tipping paper. The cigarette can be equipped with air dilution perforations or other means for providing air dilution thereto, if desired. It is understood that more than one individually placed pellet can be positioned within the filter element, if desired.
Smoke modifying agents which are carried or contained by the pellets include flavorants ~uch as menthol, cinnamon, citrus, cocoa, licorice, tobacco extract, nicotine, and the like. For example, a typical filter element can contain one pellet containing from about 1 to about 10 percent of menthol, based on the total weight of the pellet. The use of flavor-containing pellets in filter elements of smoking articles provides for a well controlled application of desirable ingredients such as flavors into the smoking article. Of particular interest is the fact that certain materials can provide a continuous, controlled release of certain ingredients over time. In addition, the level of flavorant delivered to the user can be well controlled, as when the flavorant is entrained in the mainstream aerosol during draw. As the flavorants are delivered to an appreciable degree from the filter element of the smoking article, a relatively large amount of flavorant is not subjected to the high - ~299961 temperatures experienced in other regions of the smoking article (eg., in the tobacco rod). In addition, the filter element is capable of modifying ~eg., flavoring) the aerosol delivered by a smoking S article without the necessity of noticeably affecting the appearance or structure of the smoking article.
Claims (29)
1. An apparatus for providing rods for use in the manufacture of smoking articles, each rod having solid masses individually spaced at predetermined intervals along the length thereof, the apparatus comprising:
a) means for providing a continuous supply of rod filler material;
b) means for continuously forming individual solid masses in pelletized form from a continuous strand of plasticized material, such means including a rotatable member having a series of pockets positioned at predetermined intervals along the periphery thereof and retaining means which extends over the peripheral face of the rotatable member and which allows for introduction of the continuous strand to successive pockets along the periphery of the rotatable member; the rotatable member and the retaining means being arranged such that the interaction thereof causes the continuous strand to be sheared to form a solid mass within each pocket;
c) means for positioning the individual solid masses of pelletized plasticized material within the supply of filler material;
d) means for forming a continuous rod having the individual solid masses positioned at predetermined intervals with the rod; and e) means for subdividing the continuous rod at predetermined intervals.
a) means for providing a continuous supply of rod filler material;
b) means for continuously forming individual solid masses in pelletized form from a continuous strand of plasticized material, such means including a rotatable member having a series of pockets positioned at predetermined intervals along the periphery thereof and retaining means which extends over the peripheral face of the rotatable member and which allows for introduction of the continuous strand to successive pockets along the periphery of the rotatable member; the rotatable member and the retaining means being arranged such that the interaction thereof causes the continuous strand to be sheared to form a solid mass within each pocket;
c) means for positioning the individual solid masses of pelletized plasticized material within the supply of filler material;
d) means for forming a continuous rod having the individual solid masses positioned at predetermined intervals with the rod; and e) means for subdividing the continuous rod at predetermined intervals.
2. The apparatus of claim 1 wherein the means for providing a continuous supply of rod filler material is a means for supplying a continuous web of filter material, and wherein the means for continuously inserting the individual solid masses at predetermined intervals within the web of filter material includes (i) a means for forming individual solid masses in pelletized form from a continuous strand of plasticized material and (ii) a means for positioning the individual solid masses of pelletized material within the web of filter material.
3. The apparatus of claim 2 wherein the means for supplying the continuous web of filter material is a tow processing unit.
4. The apparatus of claim 2 further including means for assuring deposit of each individual solid mass within the web of filter material.
5. The apparatus of claims 1 or 2 comprising means for providing a circumscribing outer wrap for the continuous rod.
6. The apparatus of claims 1, 2 or 3 wherein each pocket is generally wedge-shaped, each pocket having (i) a depth which extends from shallow to its deepest portion along the peripheral length of the pocket, and (ii) an abrupt surface extending from the deepest portion thereof towards the periphery of the rotatable member.
7. An apparatus for providing filter rods for use in the manufacture of smoking articles, each filter rod having pelletized material spaced therewithin at predetermined intervals along the length thereof, the apparatus comprising:
I) means for supplying a continuous web of filter material from a source of filter material;
II) means for supplying a continuous strand which is employed to provide the pelletized material;
III) pellet insertion means for continuously forming pellets from the strand and inserting the individual pellets at predetermined intervals within the web of filter material;
wherein a) the pellet insertion means includes (i) a circular rotatable member having a series of pockets positioned at predetermined intervals along the periphery thereof, and (ii) a retaining means including a strand inlet means for allowing introduction of the strand to successive pockets along the periphery of the circular rotatable member; and b) the circular rotatable member and retaining means are arranged such that (i) the interaction thereof causes the strand to be subdivided into pelletized form within each individual successive pocket, and (ii) the individual pellets are maintained within the respective pockets until each pellet is deposited within the web of filter material;
IV) means for controlling the rate of supply of strand, the rate of rotation of the circular rotatable member, and the rate of supply of filter material such that the pellets are positioned at predetermined intervals within the web of filter material;
V) means for receiving the filter material and positioned pellets into a rod-making means for providing a continuous filter rod; and VI) means for subdividing the continuous rod at predetermined intervals into the desired length thereby forming filter rods such that the desired number of individual pellets are positioned at the desired positions within the filter rods.
I) means for supplying a continuous web of filter material from a source of filter material;
II) means for supplying a continuous strand which is employed to provide the pelletized material;
III) pellet insertion means for continuously forming pellets from the strand and inserting the individual pellets at predetermined intervals within the web of filter material;
wherein a) the pellet insertion means includes (i) a circular rotatable member having a series of pockets positioned at predetermined intervals along the periphery thereof, and (ii) a retaining means including a strand inlet means for allowing introduction of the strand to successive pockets along the periphery of the circular rotatable member; and b) the circular rotatable member and retaining means are arranged such that (i) the interaction thereof causes the strand to be subdivided into pelletized form within each individual successive pocket, and (ii) the individual pellets are maintained within the respective pockets until each pellet is deposited within the web of filter material;
IV) means for controlling the rate of supply of strand, the rate of rotation of the circular rotatable member, and the rate of supply of filter material such that the pellets are positioned at predetermined intervals within the web of filter material;
V) means for receiving the filter material and positioned pellets into a rod-making means for providing a continuous filter rod; and VI) means for subdividing the continuous rod at predetermined intervals into the desired length thereby forming filter rods such that the desired number of individual pellets are positioned at the desired positions within the filter rods.
8. The apparatus of claim 7 wherein the retaining means has the form of a plow in the region where each individual pellet is deposited within the web of filter material.
9. The apparatus of claim 7 comprising means for providing a circumscribing outer wrap for the continuous rod.
10. The apparatus of claims 7, 8 or 9 wherein the means for supplying the continuous web of filter material is a tow processing unit.
11. The apparatus of claim 7, 8 or 9 wherein the means for supplying the continuous web of filter material is a tow processing unit and each pocket is generally wedge-shaped, each pocket having (i) a depth which extends from shallow to its deepest portion along the peripheral length of the pocket, and (ii) an abrupt surface extending from the deepest portion thereof towards the periphery of the rotatable member.
12. The apparatus of claim 7 further including means for assuring deposit of each individual pellet within the web of filter material.
13. The apparatus of claims 7, 8 or 9 wherein each pocket is generally wedge-shaped, each pocket having (i) a depth which extends from shallow to its deepest portion along the peripheral length of the pocket, and (ii) an abrupt surface extending from the deepest portion thereof towards the periphery of the rotatable member.
14. A process for manufacturing rods for use in the manufacture of smoking articles, each rod having solid masses individually spaced at predetermined intervals along the length thereof, the process comprising:
a) continuously supplying rod filler material;
b) continuously forming individual solid masses in pelletized form from a continuous strand of plasticized material by introducing the continuous strand into successive pockets along the periphery of a rotatable member and shearing the strand by the interaction of the rotatable member with a retaining means so as to provide a pellet within each pocket;
maintaining each pellet in each pocket by the arrangement of the rotatable member with the retaining means; and positioning the individual solid masses of pelletized material within the supplied filler material;
c) forming a continuous rod having the individual solid masses positioned at predetermined intervals within the rod;
and d) subdividing the continuous rod at predetermined intervals.
a) continuously supplying rod filler material;
b) continuously forming individual solid masses in pelletized form from a continuous strand of plasticized material by introducing the continuous strand into successive pockets along the periphery of a rotatable member and shearing the strand by the interaction of the rotatable member with a retaining means so as to provide a pellet within each pocket;
maintaining each pellet in each pocket by the arrangement of the rotatable member with the retaining means; and positioning the individual solid masses of pelletized material within the supplied filler material;
c) forming a continuous rod having the individual solid masses positioned at predetermined intervals within the rod;
and d) subdividing the continuous rod at predetermined intervals.
15. The process of claim 14 whereby a continuous web of filter material is supplied as rod filler material, and whereby the individual masses are continuously inserted at predetermined intervals within the supplied web of filter material by forming individual solid masses in pelletized form from a continuous strand of plasticized material, and positioning the individual solid masses of pelletized material within the supplied filler material.
16. The process of claim 15 whereby the continuous web of filter material is supplied using a tow processing unit.
17. The process of claims 14 or 15 whereby a circumscribing outer wrap is provided to the continuous rod.
18. A process for providing filter rods for use in the manufacture of smoking articles, each filter rod having pelletized material spaced therewithin at predetermined intervals along the length thereof, the process comprising:
I) supplying a continuous web of filter material from a source of filter material;
II) supplying a continuous strand which is employed to provide the pelletized material;
III) continuously forming pellets from the continuous strand by continuously introducing the strand into successive pockets along the periphery of a rotatable member and shearing the strand so as to provide a pellet within each pocket by the interaction of the rotatable member with a retaining member, which retaining member allows for introduction of the continuous strand into successive pockets along the periphery of the rotatable member;
IV) maintaining each pellet in each pocket by the arrangement of the rotatable member with the retaining means;
V) inserting at predetermined intervals the individual pellets from within each successive pocket to within the web of filter material;
VI) receiving the web of filter material having the individual pellets positioned at predetermined intervals therein into a rod making means and making a continuous rod therefrom; and VII) subdividing the continuous rod at predetermined intervals into the desired length thereby forming filter rods such that the desired number of individual pellets are positioned at the desired positions within the filter rods.
I) supplying a continuous web of filter material from a source of filter material;
II) supplying a continuous strand which is employed to provide the pelletized material;
III) continuously forming pellets from the continuous strand by continuously introducing the strand into successive pockets along the periphery of a rotatable member and shearing the strand so as to provide a pellet within each pocket by the interaction of the rotatable member with a retaining member, which retaining member allows for introduction of the continuous strand into successive pockets along the periphery of the rotatable member;
IV) maintaining each pellet in each pocket by the arrangement of the rotatable member with the retaining means;
V) inserting at predetermined intervals the individual pellets from within each successive pocket to within the web of filter material;
VI) receiving the web of filter material having the individual pellets positioned at predetermined intervals therein into a rod making means and making a continuous rod therefrom; and VII) subdividing the continuous rod at predetermined intervals into the desired length thereby forming filter rods such that the desired number of individual pellets are positioned at the desired positions within the filter rods.
19. The process of claim 18 whereby a circumscribing outer wrap is provided to the continuous rod.
20. The process of claim 18 or 19 whereby the continuous web of filter material is supplied using a tow processing unit.
21. The process of claim 18 whereby each pellet is provided from a continuous strand of plasticized material.
22. The process of claim 18 whereby the rate of rotation of the rotatable member and the rate of supply of the continuous strand are synchronized with respect to the rate at which the web of filter material is supplied.
23. An apparatus for providing rods for use in the manufacture of smoking articles, each rod having individual masses spaced at predetermined intervals along the length thereof, the apparatus comprising:
a) means for providing a continuous supply of rod filler material;
b) means for supplying a continuous strand of material;
c) means for cutting the continuous strand into individual masses, such means including (i) a rotatable member having a series of pockets positioned at predetermined intervals along the periphery thereof, and (ii) retaining means including a strand inlet means for allowing introduction to successive pockets along the periphery of the rotatable member; the rotatable member being secured for rotation within the retaining means, and the rotatable member and retaining means being arranged such that the interaction thereof during rotation of the rotatable member causes the strand to be subdivided into an individual mass within each pocket;
d) means for depositing each individual mass at predetermined intervals with the supply of filler material;
e) means for forming a continuous rod having the individual masses positioned at predetermined intervals along the rod; and f) means for subdividing the continuous rod at predetermined intervals.
a) means for providing a continuous supply of rod filler material;
b) means for supplying a continuous strand of material;
c) means for cutting the continuous strand into individual masses, such means including (i) a rotatable member having a series of pockets positioned at predetermined intervals along the periphery thereof, and (ii) retaining means including a strand inlet means for allowing introduction to successive pockets along the periphery of the rotatable member; the rotatable member being secured for rotation within the retaining means, and the rotatable member and retaining means being arranged such that the interaction thereof during rotation of the rotatable member causes the strand to be subdivided into an individual mass within each pocket;
d) means for depositing each individual mass at predetermined intervals with the supply of filler material;
e) means for forming a continuous rod having the individual masses positioned at predetermined intervals along the rod; and f) means for subdividing the continuous rod at predetermined intervals.
24. The apparatus of claim 23 wherein the means for providing a continuous supply of rod filler material is a means for supplying a continuous web of filter material.
25. The apparatus of claim 24 wherein the means for supplying the continuous web of filter material is a tow processing unit.
26. The apparatus of claim 24 comprising the means for providing a circumscribing outer wrap for the continuous rod.
27. The apparatus of claim 24 wherein the rate of rotation of the rotatable member and the rate of supply of continuous strand are synchronized with respect to the rate at which the web of filter material is supplied.
28. The process of claim 24 further including means for assuring deposit of each individual mass within the web of filter material.
29. The apparatus of claims 23, 24, 25, 26, 27 or 28 wherein each pocket is generally wedge-shaped, each pocket having (i) a depth which extends from shallow to its deepest portion along the peripheral length of the pocket, and (ii) an abrupt surface extending from the deepest portion thereof towards the periphery of the rotatable member.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/061,507 US4862905A (en) | 1987-06-15 | 1987-06-15 | Rods containing pelletized material |
| US061,507 | 1987-06-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1299961C true CA1299961C (en) | 1992-05-05 |
Family
ID=22036228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000569458A Expired - Lifetime CA1299961C (en) | 1987-06-15 | 1988-06-14 | Rods containing pelletized material |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4862905A (en) |
| EP (1) | EP0295518B1 (en) |
| JP (1) | JPS63317072A (en) |
| KR (1) | KR890000045A (en) |
| CN (1) | CN1013824B (en) |
| AT (1) | ATE98445T1 (en) |
| CA (1) | CA1299961C (en) |
| DE (1) | DE3886270T2 (en) |
Families Citing this family (115)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4981522A (en) * | 1988-07-22 | 1991-01-01 | Philip Morris Incorporated | Thermally releasable flavor source for smoking articles |
| GB2236656A (en) * | 1989-10-11 | 1991-04-17 | Rothmans Int Tobacco | Flavoured cigarette filters |
| US5269329A (en) * | 1990-07-09 | 1993-12-14 | Kimberly-Clark Corporation | Method of producing tobacco flavored cigarette filter |
| US5163452A (en) * | 1990-09-20 | 1992-11-17 | R. J. Reynolds Tobacco Company | Rod making apparatus for use in the manufacture of smoking articles |
| US5201196A (en) * | 1991-06-04 | 1993-04-13 | Wright State University | Centrifugal heat pipe vapor absorption heat pump |
| US5197494A (en) * | 1991-06-04 | 1993-03-30 | R.J. Reynolds Tobacco Company | Tobacco extraction process |
| GB9122447D0 (en) * | 1991-10-23 | 1991-12-04 | Rothmans Int Tobacco | Lightweight cigarette filter and cigarettes incorporating such filters |
| US5413122A (en) * | 1992-02-18 | 1995-05-09 | R. J. Reynolds Tobacco Company | Method of providing flavorful and aromatic compounds |
| EP0558447A1 (en) * | 1992-02-27 | 1993-09-01 | Fabriques De Tabac Reunies S.A. | Method and apparatus for the injection of a product in a tobacco rod |
| EP0713655A3 (en) * | 1994-11-23 | 1997-08-13 | Reynolds Tobacco Co R | Cigarette substitute article and method of making the same |
| US5724997A (en) * | 1995-12-21 | 1998-03-10 | R. J. Reynolds Tobacco Company | Disposable flavored filter for cigarettes |
| US6591841B1 (en) | 1996-08-01 | 2003-07-15 | Jackie Lee White | Method of providing flavorful and aromatic tobacco suspension |
| US6417156B1 (en) * | 1997-04-09 | 2002-07-09 | R. J. Reynolds Tobacco Company | Anti-static article |
| US6221547B1 (en) * | 1998-08-31 | 2001-04-24 | Bridgestone Corporation | Electrically conductive resin composition and photosensitive drum made therewith |
| US6298858B1 (en) | 1998-11-18 | 2001-10-09 | R. J. Reynolds Tobacco Company | Tobacco flavoring components of enhanced aromatic content and method of providing same |
| IT1304436B1 (en) * | 1998-12-15 | 2001-03-19 | Gd Spa | METHOD AND DEVICE FOR THE FORMATION OF A CIGARETTE KEEP PROVIDED WITH ADDITIVE MATERIAL. |
| JP4431284B2 (en) * | 1999-03-02 | 2010-03-10 | フィリップ・モーリス・プロダクツ・インコーポレイテッド | Method and apparatus for manufacturing particle-supported filter rods |
| DE10007485A1 (en) | 2000-02-18 | 2001-08-23 | Hauni Maschinenbau Ag | Method and device for recycling tobacco dust |
| DE10010176B4 (en) * | 2000-03-02 | 2005-10-06 | Reemtsma Cigarettenfabriken Gmbh | Method and device for producing an additive-treated filter cable |
| US7004896B2 (en) * | 2001-01-29 | 2006-02-28 | Hauni Maschinenbau Gmbh | Method and arrangement for producing compound filters |
| US6837281B2 (en) | 2001-08-17 | 2005-01-04 | Philip Morris Incorporation | Apparatus and method for filling cavities with metered amounts of granular particles |
| ATE346513T1 (en) * | 2002-09-11 | 2006-12-15 | Hauni Maschinenbau Ag | INJECTION OF A MEDIUM INTO FILTER SEGMENTS |
| US20040107973A1 (en) * | 2002-12-09 | 2004-06-10 | Atwell Charles Gary | Foam injection device and method of filling cavities |
| US20040121921A1 (en) * | 2002-12-20 | 2004-06-24 | Calcut Brent D. | Thermally stable antifoam agent and methods for use in functional fluids |
| US7836895B2 (en) * | 2003-06-23 | 2010-11-23 | R. J. Reynolds Tobacco Company | Filtered cigarette incorporating a breakable capsule |
| US7115085B2 (en) * | 2003-09-12 | 2006-10-03 | R.J. Reynolds Tobacco Company | Method and apparatus for incorporating objects into cigarette filters |
| US8066011B2 (en) * | 2003-09-30 | 2011-11-29 | R. J. Reynolds Tobacco Company | Filtered cigarette incorporating an adsorbent material |
| US7381175B2 (en) * | 2004-12-22 | 2008-06-03 | Philip Morris Usa Inc. | Compound filter rod making apparatus and process |
| US7479098B2 (en) | 2005-09-23 | 2009-01-20 | R. J. Reynolds Tobacco Company | Equipment for insertion of objects into smoking articles |
| US8201564B2 (en) * | 2005-12-30 | 2012-06-19 | Philip Morris Usa Inc. | Cigarette filters |
| US9220301B2 (en) | 2006-03-16 | 2015-12-29 | R.J. Reynolds Tobacco Company | Smoking article |
| US7740019B2 (en) | 2006-08-02 | 2010-06-22 | R.J. Reynolds Tobacco Company, Inc. | Equipment and associated method for insertion of material into cigarette filters |
| US7789089B2 (en) | 2006-08-04 | 2010-09-07 | R. J. Reynolds Tobacco Company | Filtered cigarette possessing tipping material |
| US8739802B2 (en) | 2006-10-02 | 2014-06-03 | R.J. Reynolds Tobacco Company | Filtered cigarette |
| US8171941B2 (en) * | 2007-02-26 | 2012-05-08 | R. J. Reynolds Tobacco Company | Cigarette customization apparatus and associated method |
| US8353811B2 (en) * | 2007-05-30 | 2013-01-15 | Phillip Morris Usa Inc. | Smoking articles enhanced to deliver additives incorporated within electroprocessed microcapsules and nanocapsules, and related methods |
| US7972254B2 (en) * | 2007-06-11 | 2011-07-05 | R.J. Reynolds Tobacco Company | Apparatus for inserting objects into a filter component of a smoking article, and associated method |
| US7836897B2 (en) * | 2007-10-05 | 2010-11-23 | R.J. Reynolds Tobacco Company | Cigarette having configured lighting end |
| US7967018B2 (en) * | 2007-11-01 | 2011-06-28 | R.J. Reynolds Tobacco Company | Methods for sculpting cigarettes, and associated apparatuses |
| US8381947B2 (en) * | 2007-12-05 | 2013-02-26 | Philip Morris Usa Inc. | Bead feeder |
| CN101925403B (en) | 2008-01-25 | 2013-12-11 | R.J.雷诺兹烟草公司 | Process for manufacturing breakable capsules useful in tobacco products |
| US8186359B2 (en) | 2008-02-01 | 2012-05-29 | R. J. Reynolds Tobacco Company | System for analyzing a filter element associated with a smoking article, and associated method |
| US8613284B2 (en) * | 2008-05-21 | 2013-12-24 | R.J. Reynolds Tobacco Company | Cigarette filter comprising a degradable fiber |
| US8079369B2 (en) | 2008-05-21 | 2011-12-20 | R.J. Reynolds Tobacco Company | Method of forming a cigarette filter rod member |
| EP2323506B2 (en) | 2008-05-21 | 2016-07-27 | R.J.Reynolds Tobacco Company | Apparatus and associated method for forming a filter component of a smoking article and smoking articles made therefrom |
| US8375958B2 (en) * | 2008-05-21 | 2013-02-19 | R.J. Reynolds Tobacco Company | Cigarette filter comprising a carbonaceous fiber |
| GB2461858A (en) * | 2008-07-11 | 2010-01-20 | British American Tobacco Co | Fluid encapsulation for use in the manufacture of filters for smoking articles |
| US8308623B2 (en) * | 2008-10-28 | 2012-11-13 | R.J. Reynolds Tobacco Company | Apparatus for enhancing a filter component of a smoking article, and associated method |
| EP3338568A1 (en) | 2008-11-14 | 2018-06-27 | Philip Morris Products S.A. | Method and apparatus for introducing objects into a smoking article |
| US8522515B2 (en) * | 2009-01-26 | 2013-09-03 | R.J. Reynolds Tobacco Company | Method and apparatus for customizing cigarette packages |
| US8262550B2 (en) | 2009-03-19 | 2012-09-11 | R. J. Reynolds Tobacco Company | Apparatus for inserting objects into a filter component of a smoking article |
| US8808153B2 (en) * | 2009-07-14 | 2014-08-19 | Aiger Group Ag | Apparatus for assembly of multi-segment rod-like articles |
| US8434498B2 (en) | 2009-08-11 | 2013-05-07 | R. J. Reynolds Tobacco Company | Degradable filter element |
| ZA200905994B (en) * | 2009-08-28 | 2014-05-28 | Tobacco Res And Dev Inst (Pty) Ltd | Filter rod maker |
| US8303474B2 (en) * | 2009-08-31 | 2012-11-06 | Aiger Group Ag | Apparatus and method for insertion of capsules into filter tows |
| US8361236B2 (en) * | 2009-10-09 | 2013-01-29 | Philip Morris Usa Inc. | Supramolecular complex flavor immobilizing for controlled release of flavor in smoking articles |
| US8997755B2 (en) * | 2009-11-11 | 2015-04-07 | R.J. Reynolds Tobacco Company | Filter element comprising smoke-altering material |
| US20110162662A1 (en) * | 2010-01-05 | 2011-07-07 | Aiger Group Ag | Apparatus and method for insertion of capsules into filter tows |
| US9131730B2 (en) * | 2010-01-07 | 2015-09-15 | Aiger Group Ag | System and apparatus for registration of different objects in rod shaped articles |
| US8760508B2 (en) * | 2010-01-13 | 2014-06-24 | R.J. Reynolds Tobacco Company | Filtered smoking article inspection system, and associated method |
| US20110180084A1 (en) * | 2010-01-27 | 2011-07-28 | R.J. Reynolds Tobacco Company | Apparatus and associated method for forming a filter component of a smoking article |
| US8671951B2 (en) * | 2010-03-26 | 2014-03-18 | Philip Morris Usa Inc. | Methods of manufacturing cigarettes and filter subassemblies with squeezable flavor capsule |
| US8602068B2 (en) * | 2010-03-26 | 2013-12-10 | Philip Morris Usa Inc. | Method and apparatus for pouching tobacco having a high moisture content |
| US20110271968A1 (en) | 2010-05-07 | 2011-11-10 | Carolyn Rierson Carpenter | Filtered Cigarette With Modifiable Sensory Characteristics |
| US20120000480A1 (en) | 2010-06-30 | 2012-01-05 | Sebastian Andries D | Biodegradable cigarette filter |
| US20120017925A1 (en) | 2010-06-30 | 2012-01-26 | Sebastian Andries D | Degradable cigarette filter |
| US20120000481A1 (en) | 2010-06-30 | 2012-01-05 | Dennis Potter | Degradable filter element for smoking article |
| WO2012012053A1 (en) | 2010-06-30 | 2012-01-26 | R.J. Reynolds Tobacco Company | Biodegradable cigarette filter |
| US8950407B2 (en) | 2010-06-30 | 2015-02-10 | R.J. Reynolds Tobacco Company | Degradable adhesive compositions for smoking articles |
| US8720450B2 (en) | 2010-07-30 | 2014-05-13 | R.J. Reynolds Tobacco Company | Filter element comprising multifunctional fibrous smoke-altering material |
| US8905243B2 (en) | 2010-08-11 | 2014-12-09 | R.J. Reynolds Tobacco Company | Apparatus for sorting objects, and associated method |
| US8622882B2 (en) | 2010-09-27 | 2014-01-07 | Aiger Group Ag | Apparatus and method for insertion of capsules into filter tows |
| US8475348B2 (en) | 2010-09-28 | 2013-07-02 | Aiger Group Ag | Apparatus and method for assembly of multi-segment rod-like articles |
| US20120120229A1 (en) | 2010-11-16 | 2012-05-17 | Rj Reynolds Tobacco Company | Cigarette package inspection system, and associated method |
| US9055768B2 (en) | 2011-03-25 | 2015-06-16 | Hauni Maschinenbau Ag | High speed object inserter and related methods |
| US9232820B2 (en) * | 2011-03-25 | 2016-01-12 | Hauni Maschinenbau Ag | High speed object inserter and related methods |
| US10609955B2 (en) | 2011-04-08 | 2020-04-07 | R.J. Reynolds Tobacco Company | Filtered cigarette comprising a tubular element in filter |
| US11957163B2 (en) | 2011-04-08 | 2024-04-16 | R.J. Reynolds Tobacco Company | Multi-segment filter element including smoke-altering flavorant |
| US20120305015A1 (en) | 2011-05-31 | 2012-12-06 | Sebastian Andries D | Coated paper filter |
| WO2012175467A1 (en) * | 2011-06-20 | 2012-12-27 | Philip Morris Products S.A. | Apparatus and method for introducing objects into a smoking article |
| US9149070B2 (en) | 2011-07-14 | 2015-10-06 | R.J. Reynolds Tobacco Company | Segmented cigarette filter for selective smoke filtration |
| US8973588B2 (en) | 2011-07-29 | 2015-03-10 | R.J. Reynolds Tobacco Company | Plasticizer composition for degradable polyester filter tow |
| EP2554060A1 (en) | 2011-08-01 | 2013-02-06 | JT International S.A. | Filter element incorporating a breakable capsule, method of manufacturing a cigarette having a filter element incorporating a breakable capsule and apparatus for manufacturing the cigarette having a filter element incorporating a breakable capsule |
| WO2013020280A1 (en) * | 2011-08-10 | 2013-02-14 | 深圳梵活生物科技有限公司 | Cigarette filter and manufacturing method thereof, cigarette and method of use thereof |
| US20130085052A1 (en) | 2011-09-29 | 2013-04-04 | R. J. Reynolds Tobacco Company | Apparatus for Inserting Microcapsule Objects into a Filter Element of a Smoking Article, and Associated Method |
| US8831764B2 (en) | 2011-10-17 | 2014-09-09 | R. J. Reynolds Tobacco Company | Cigarette package coding system and associated method |
| DE102011085534B4 (en) * | 2011-11-01 | 2013-07-04 | Hauni Maschinenbau Ag | Method and device for separating and placing objects in a material strand of the tobacco processing industry |
| US20130167851A1 (en) | 2011-12-28 | 2013-07-04 | Balager Ademe | Method of filter assembly for smoking article |
| US20130167849A1 (en) | 2011-12-28 | 2013-07-04 | Balager Ademe | Method of tipping for smoking article |
| US10575551B2 (en) | 2012-08-20 | 2020-03-03 | Altria Client Services Llc | Rod forming apparatus |
| AT513412B1 (en) | 2012-09-17 | 2014-07-15 | Tannpapier Gmbh | Tipping paper |
| US9119419B2 (en) | 2012-10-10 | 2015-09-01 | R.J. Reynolds Tobacco Company | Filter material for a filter element of a smoking article, and associated system and method |
| US9664570B2 (en) | 2012-11-13 | 2017-05-30 | R.J. Reynolds Tobacco Company | System for analyzing a smoking article filter associated with a smoking article, and associated method |
| KR20150088268A (en) * | 2012-11-29 | 2015-07-31 | 필립모리스 프로덕츠 에스.에이. | Method and apparatus for introducing a metered amount of particles into a continuous flow of material |
| US20140261487A1 (en) | 2013-03-14 | 2014-09-18 | R. J. Reynolds Tobacco Company | Electronic smoking article with improved storage and transport of aerosol precursor compositions |
| KR102271624B1 (en) * | 2013-07-18 | 2021-07-05 | 필립모리스 프로덕츠 에스.에이. | Method of manufacturing an airflow directing segment for a smoking article |
| US9974334B2 (en) | 2014-01-17 | 2018-05-22 | Rai Strategic Holdings, Inc. | Electronic smoking article with improved storage of aerosol precursor compositions |
| US9844232B2 (en) | 2014-03-11 | 2017-12-19 | R.J. Reynolds Tobacco Company | Smoking article inspection system and associated method |
| US10063814B2 (en) | 2014-03-12 | 2018-08-28 | R.J. Reynolds Tobacco Company | Smoking article package inspection system and associated method |
| US10058123B2 (en) | 2014-07-11 | 2018-08-28 | R. J. Reynolds Tobacco Company | Heater for an aerosol delivery device and methods of formation thereof |
| US20160073686A1 (en) | 2014-09-12 | 2016-03-17 | R.J. Reynolds Tobacco Company | Tobacco-derived filter element |
| US20160120213A1 (en) | 2014-10-31 | 2016-05-05 | R. J. Reynolds Tobacco Company | Tobacco product component recovery system |
| US11006662B1 (en) | 2015-06-19 | 2021-05-18 | Altria Client Services Llc | Bead feed unit and method |
| US11641874B2 (en) | 2015-09-09 | 2023-05-09 | R.J. Reynolds Tobacco Company | Flavor delivery article |
| PL236586B1 (en) * | 2016-11-19 | 2021-01-25 | Int Tobacco Machinery Poland Spolka Z Ograniczona Odpowiedzialnoscia | Feeding device for feeding of continuous thread material to the continuous band of fibrous material on the machine that manufactures bar-like slabs of tobacco industry and the machine that manufactures bar-like slabs |
| US10492522B2 (en) | 2017-05-03 | 2019-12-03 | R.J. Reynolds Tobacco Company | Flavored menthol-containing objects for application to smoking article components |
| US10383369B2 (en) | 2017-06-07 | 2019-08-20 | Rai Strategic Holdings, Inc. | Fibrous filtration material for electronic smoking article |
| US11388927B2 (en) | 2018-04-05 | 2022-07-19 | R.J. Reynolds Tobacco Company | Cigarette filter object insertion apparatus and associated method |
| US11033049B2 (en) | 2018-08-01 | 2021-06-15 | R.J. Reynolds Tobacco Company | Apparatus for recovering tobacco material and related method |
| EP3669672B1 (en) * | 2018-12-19 | 2021-12-29 | International Tobacco Machinery Poland SP. Z O.O. | A method and an apparatus for manufacturing rod-like articles for tobacco industry |
| EP3808192A1 (en) * | 2019-10-16 | 2021-04-21 | International Tobacco Machinery Poland SP. Z O.O. | A machine for manufacturing filter rods |
| EP3918929A1 (en) * | 2020-06-03 | 2021-12-08 | International Tobacco Machinery Poland SP. Z O.O. | Method and apparatus for manufacturing of rods |
| US20230413897A1 (en) | 2022-06-27 | 2023-12-28 | R.J. Reynolds Tobacco Company | Alternative filter materials and components for an aerosol delivery device |
| WO2024069544A1 (en) | 2022-09-30 | 2024-04-04 | Nicoventures Trading Limited | Reconstituted tobacco substrate for aerosol delivery device |
| WO2024069542A1 (en) | 2022-09-30 | 2024-04-04 | R. J. Reynolds Tobacco Company | Method for forming reconstituted tobacco |
Family Cites Families (62)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2682270A (en) * | 1949-11-10 | 1954-06-29 | Ecusta Paper Corp | Dosing apparatus |
| US2815760A (en) * | 1951-12-24 | 1957-12-10 | Schreus Hans Theo | Tobacco smoke filter |
| US3153362A (en) * | 1961-02-24 | 1964-10-20 | American Enka Corp | Chipping apparatus |
| US3162199A (en) * | 1961-04-21 | 1964-12-22 | Brown & Williamson Tobacco | Smoking articles having encapsulated tobacco additives and their manufacture |
| GB1103091A (en) * | 1963-06-27 | 1968-02-14 | Cigarette Components Ltd | Improvements in or relating to tobacco smoke filters |
| US3259029A (en) * | 1963-07-11 | 1966-07-05 | Liggett & Myers Tobacco Co | Apparatus and process for making filter tips for cigarettes |
| US3297038A (en) * | 1964-04-20 | 1967-01-10 | Homburger Freddy | Filter cigarette |
| US3409020A (en) * | 1965-02-24 | 1968-11-05 | Philip Morris Inc | Tobacco smoke filter |
| US3339557A (en) * | 1965-03-12 | 1967-09-05 | Lew W Karalus | Cigarette and smoke filter and flavor means |
| US3313305A (en) * | 1965-08-11 | 1967-04-11 | Beatrice Foods Co | Cigarette filter |
| US3313306A (en) * | 1965-10-22 | 1967-04-11 | American Filtrona Corp | Stable elongated elements and smoking means incorporating the same |
| US3428049A (en) * | 1965-12-21 | 1969-02-18 | American Tobacco Co | Tobacco smoke filter element |
| GB1118520A (en) * | 1967-06-20 | 1968-07-03 | Maharaj Krishen Mehta | Dispensing apparatus for use in encapsulating powders |
| US3354886A (en) * | 1966-04-29 | 1967-11-28 | American Filtrona Corp | Bonded silica gel products |
| US3339558A (en) * | 1966-10-28 | 1967-09-05 | Haskett Barry F | Smoking article and filter therefor containing vitamin a |
| US3656518A (en) * | 1967-03-27 | 1972-04-18 | Perry Ind Inc | Method and apparatus for measuring and dispensing predetermined equal amounts of powdered material |
| US3456386A (en) * | 1967-04-24 | 1969-07-22 | American Filtrona Corp | Seed-carrying devices |
| US3552400A (en) * | 1967-06-08 | 1971-01-05 | American Filtrona Corp | Filter plug of staple fiber filter elements and the like |
| GB1246627A (en) * | 1967-09-15 | 1971-09-15 | Molins Machine Co Ltd | Apparatus for producing composite filters for cigarettes |
| DE1632243C3 (en) * | 1967-09-28 | 1975-07-24 | H.F. & Ph. F. Reemtsma, 2000 Hamburg | Process for the production of granulate-filled cigarette filters and devices for carrying out the process |
| US3810477A (en) * | 1968-05-08 | 1974-05-14 | American Filtrona Corp | Tobacco smoke filter |
| GB1204018A (en) * | 1968-10-24 | 1970-09-03 | Frank Barry Haskett | Improvements in or relating to smoking articles and filter elements therefor |
| US3550508A (en) * | 1968-10-28 | 1970-12-29 | American Tobacco Co | Method of making a composite filter |
| CH493214A (en) * | 1968-12-03 | 1970-07-15 | Celfil Co | Process for the manufacture of filter stoppers for tobacco products |
| US3603319A (en) * | 1968-12-13 | 1971-09-07 | Philip Morris Inc | Flavor-releasing smoking article and method of making the same |
| US3635226A (en) * | 1969-06-16 | 1972-01-18 | British American Tobacco Co | Tobacco-smoke filters |
| US3589371A (en) * | 1969-09-16 | 1971-06-29 | Imp Tabacco Co Of Canada Ltd | Cigar holder |
| US3685521A (en) * | 1970-06-16 | 1972-08-22 | H 2 O Filter Corp The | Cigarette holder containing actuated carbon and frangible capsule |
| US3743528A (en) * | 1971-07-08 | 1973-07-03 | Liggett & Myers Inc | Method and apparatus for impregnating fibrous filter material |
| US3847064A (en) * | 1972-09-11 | 1974-11-12 | American Filtrona Corp | Tobacco smoke filter |
| US3972335A (en) * | 1972-09-20 | 1976-08-03 | Calgon Corporation | Mentholated cigarette filter |
| US3991773A (en) * | 1973-01-16 | 1976-11-16 | Walker Eric E | Optional dry or liquid filter |
| US3844200A (en) * | 1973-05-07 | 1974-10-29 | Brown & Williamson Tobacco | Continuous manufacture of a multiple filter rod having spaced pockets containing particulate material |
| US3837264A (en) * | 1973-05-07 | 1974-09-24 | Brown & Williamson Tobacco | Intermittent process for manufacture of a multiple filter rod having spaced pockets containing particulate material |
| US3910166A (en) * | 1974-02-04 | 1975-10-07 | Brown & Williamson Tobacco | Method and apparatus for the manufacture of filter rods containing particulate material from a split web of filter material |
| US3957563A (en) * | 1974-02-22 | 1976-05-18 | Brown & Williamson Tobacco Corporation | Method and apparatus for the manufacture of filter rods containing particulate material by a split rod technique |
| US3884741A (en) * | 1974-02-22 | 1975-05-20 | Brown & Williamson Tobacco | Method and apparatus for the manufacture of filter rods containing particulate material by a split rod technique |
| US3943940A (en) * | 1974-09-13 | 1976-03-16 | Isao Minami | Method of removing nicotine in smoking and a smoking filter to be used therefor |
| GB1462726A (en) * | 1974-09-19 | 1977-01-26 | Cigarette Components Ltd | Smoke filter process and apparatus |
| US4005668A (en) * | 1975-06-09 | 1977-02-01 | Philip Morris Incorporated | Material transfer method and apparatus |
| US4016830A (en) * | 1975-07-16 | 1977-04-12 | Brown & Williamson Tobacco Corporation | Apparatus for dispensing spaced deposits of particulate material |
| US4026306A (en) * | 1975-11-06 | 1977-05-31 | American Filtrona Corporation | Tobacco smoke filter |
| US4044640A (en) * | 1975-11-10 | 1977-08-30 | Nippon Concrete Industries Co., Ltd. | Method of making reinforcements for concrete |
| US4109666A (en) * | 1976-03-01 | 1978-08-29 | Liggett Group Inc. | Cigarette filter |
| US4037524A (en) * | 1976-11-08 | 1977-07-26 | Liggett Group Inc. | Apparatus for combining a tube with a cigarette filter |
| DE2817092C3 (en) * | 1977-04-26 | 1982-03-25 | Tate & Lyle Ltd., London | Modified smoking article |
| US4214508A (en) * | 1977-10-13 | 1980-07-29 | Philip Morris Incorporated | Method and apparatus for making cigarette filters of filamentary material |
| GB2020158B (en) * | 1978-04-21 | 1982-11-24 | Cigarette Components Ltd | Production of tobacco smoke filters |
| JPS55102385A (en) * | 1979-01-30 | 1980-08-05 | Japan Tobacco & Salt Public | Tobacco product with filter impregnated by solid flavor |
| CH643443A5 (en) * | 1979-06-14 | 1984-06-15 | Baumgartner Papiers Sa | CIGARETTE END. |
| CH645251A5 (en) * | 1980-04-08 | 1984-09-28 | Baumgartner Papiers Sa | METHOD FOR PRODUCING A CIGARETTE FILTER UNIT AND DEVICE FOR IMPLEMENTING THE METHOD. |
| US4411640A (en) * | 1981-01-08 | 1983-10-25 | Liggett Group Inc. | Apparatus for the production of cigarette filter tips having multi-sectional construction |
| US4598720A (en) * | 1981-01-30 | 1986-07-08 | Gabriel Naeem B | Pelleted cigarette |
| EP0069056B1 (en) * | 1981-06-10 | 1986-04-30 | Baumgartner Papiers S.A. | Process to aromatise tabacco smoke, cigarette end piece to carry out the process, and use of the process |
| US4425107A (en) * | 1981-07-22 | 1984-01-10 | Liggett Group Inc. | Rotatable dispensing wheel |
| US4525385A (en) * | 1983-02-18 | 1985-06-25 | R. J. Reynolds Tobacco Company | Application of additives to cigarette filter tow |
| US4476807A (en) * | 1983-02-18 | 1984-10-16 | R. J. Reynolds Tobacco Company | Apparatus for application of additives to cigarette filter tow |
| US4549875A (en) * | 1983-06-02 | 1985-10-29 | R. J. Reynolds Tobacco Co. | Manufacture of tobacco smoke filters |
| US4608115A (en) * | 1984-04-23 | 1986-08-26 | Kimberly-Clark Corporation | Revolving transfer roll |
| DK49985D0 (en) * | 1985-02-05 | 1985-02-05 | Kaj Berg Jensen | CIGARETTE CLOSE |
| US4703868A (en) * | 1985-12-23 | 1987-11-03 | University Of Florida | Apparatus for metering and dispensing seeds |
| US4677995A (en) * | 1986-02-24 | 1987-07-07 | Philip Morris Incorporated | Filter cigarette |
-
1987
- 1987-06-15 US US07/061,507 patent/US4862905A/en not_active Expired - Lifetime
-
1988
- 1988-05-27 CN CN88103264A patent/CN1013824B/en not_active Expired
- 1988-06-04 AT AT88108957T patent/ATE98445T1/en not_active IP Right Cessation
- 1988-06-04 EP EP88108957A patent/EP0295518B1/en not_active Expired - Lifetime
- 1988-06-04 DE DE3886270T patent/DE3886270T2/en not_active Expired - Fee Related
- 1988-06-06 JP JP63137581A patent/JPS63317072A/en active Pending
- 1988-06-14 CA CA000569458A patent/CA1299961C/en not_active Expired - Lifetime
- 1988-06-14 KR KR1019880007105A patent/KR890000045A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| CN88103264A (en) | 1988-12-28 |
| DE3886270D1 (en) | 1994-01-27 |
| KR890000045A (en) | 1989-03-11 |
| EP0295518A1 (en) | 1988-12-21 |
| JPS63317072A (en) | 1988-12-26 |
| DE3886270T2 (en) | 1994-06-30 |
| CN1013824B (en) | 1991-09-11 |
| EP0295518B1 (en) | 1993-12-15 |
| ATE98445T1 (en) | 1994-01-15 |
| US4862905A (en) | 1989-09-05 |
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Legal Events
| Date | Code | Title | Description |
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| MKLA | Lapsed |