US20110194790A1 - Reclosable package or bag with double zipper or similar configuration - Google Patents
Reclosable package or bag with double zipper or similar configuration Download PDFInfo
- Publication number
- US20110194790A1 US20110194790A1 US13/089,025 US201113089025A US2011194790A1 US 20110194790 A1 US20110194790 A1 US 20110194790A1 US 201113089025 A US201113089025 A US 201113089025A US 2011194790 A1 US2011194790 A1 US 2011194790A1
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- US
- United States
- Prior art keywords
- interlocking elements
- package
- interlocking
- tubular film
- elements
- 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.)
- Abandoned
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
- B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
- B65D33/2541—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor characterised by the slide fastener, e.g. adapted to interlock with a sheet between the interlocking members having sections of particular shape
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0017—Combinations of extrusion moulding with other shaping operations combined with blow-moulding or thermoforming
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/025—General arrangement or layout of plant
- B29C48/0255—General arrangement or layout of plant for extruding parallel streams of material, e.g. several separate parallel streams of extruded material forming separate articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
- B29C48/154—Coating solid articles, i.e. non-hollow articles
- B29C48/155—Partial coating thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/49—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D5/00—Producing elements of slide fasteners; Combined making and attaching of elements of slide fasteners
- B29D5/10—Producing elements of slide fasteners; Combined making and attaching of elements of slide fasteners the interlocking members being formed by continuous profiled strip
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
- B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
- B65D33/2566—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor using two or more independently operable slide fasteners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2005/00—Elements of slide fasteners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7128—Bags, sacks, sachets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/727—Fastening elements
- B29L2031/7282—Snap fasteners, clips, press-buttons
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/25—Zipper or required component thereof
- Y10T24/2502—Plural zippers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/25—Zipper or required component thereof
- Y10T24/2532—Zipper or required component thereof having interlocking surface with continuous cross section
- Y10T24/2534—Opposed interlocking surface having dissimilar cross section
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The zipper profiles have a complex shape, such as a double zipper configuration. The apparatus for the manufacture thereof includes an extrusion die and further includes a main or primary extruder for the supply of material, such as low density polyethylene, to form the tubing for the manufacture of reclosable packages, bags or pouches. The apparatus further includes at least one secondary extruder, or co-extruder, for the extruding of each reclosable profile onto the tubing. The speed of the co-extruders is controlled so as to control the extrusion of the reclosable profiles.
Description
- This application is a continuation-in-part of application Ser. No. ______, filed Jul. 15, 2008, entitled “Method to Accurately Control Size, Velocity, and Relative Position Sets of Reclosable Mechanism” which claims priority of provisional application Ser. No. 60/961,752, filed on Jul. 24, 2007. The present application further claims priority under 35 U.S.C. §119(e) of said provisional application Ser. No. 60/961,752, filed on Jul. 24, 2007.
- 1. Field of the Invention
- The present invention relates to a zipper for reclosable packages or bags wherein the profile includes a double zipper configuration.
- 2. Description of the Prior Art
- In the prior art of reclosable packages and bags, it has been envisioned that complex zipper shapes, such as a double zipper configuration, could provide enhanced sealing capability and wide-spread customer approval.
- However, in the prior art of the manufacture of zippers and similar devices for reclosable plastic film, bags or pouches, the velocity of the delivery of the resin to the profiles or to the locking elements, such as would be required for the manufacture of complex locking mechanisms, could not be accurately controlled by such elements as a choke device. This inability to accurately control the resin velocity made it difficult to extrude complex locking mechanisms at a reasonable cost and production rate.
- Further prior art includes methods where the zipper tape is extruded, wound and then, in a secondary process, unwound, heated and attached to the film. Still further prior art may be found in published patent application US2005/0269733 A1 entitled “Method of and Apparatus for Forming Multiple Closure Elements”. Other prior art is found in U.S. Pat. No. 7,137,736 to Pawloski as well as U.S. published applications 2005/0271307; 2005/0271308; 2004/0234172 and 2004/0234173.
- It is therefore an object of the present invention to provide complex locking mechanisms for reclosable interlocking elements, such as a zipper profile on a flexible film plastic package, bag or pouch, and the apparatus for the manufacture thereof, at a reasonable cost and production rate.
- It is therefore a further object of the present invention to provide accurate control of the velocity of the resin flow delivered to the profile at its point of juncture with the film or tubing of the reclosable plastic package, bag or pouch.
- It is therefore a still further object of the present invention to improve adhesion of closure elements to the body of the package, bag or pouch by preventing exposure of the contact surfaces.
- These and other objects are attained by cooling the integral profile tubing and drawing it in a negative ratio whereby the circumference of the cooled and drawn finished tubing is less than the circumference of the die plate. The resin for the profile interlocking elements is delivered from a co-extruder through a separate channel, or several separate channels, to the die body and thence to the die plate, where the resin is joined to the film (tubing) at a controlled rate, with the control being the speed of the co-extruder drive.
- Further objects and advantages of the invention will become apparent from the following description and claims, and from the accompanying drawings, wherein:
-
FIG. 1 is a schematic of an apparatus for the manufacture of the zipper profiles of the present invention. -
FIGS. 2 a-2 y are various embodiments of zipper profiles of the present invention, which can be produced by the apparatus ofFIG. 1 . - Referring now to the drawings in detail, wherein like numerals indicate like elements throughout the several views, one sees that
FIG. 1 is a schematic of theapparatus 10 for the manufacture of the zipper profiles of the present invention.Extrusion die body 12 receives the material for the formation of the tubing (e.g. a tube or a film), such as, but not limited to, low density polyethylene, fromprimary extruder 14 andextruder material hopper 16 viasupply channel 18.Supply channel 18 joins extrusion die bodyprimary supply channel 20 which is formed within extrusion diebody 12. Extrusion die bodyprimary supply channel 20, in turns, feeds the material for the tubing to theextrusion die cavity 22 where the tube orfilm 100 is formed. Tube orfilm 100, typically in a cylindrical shape, exits from themouth 24 ofextrusion die plate 13, and therefore may be referred to as tubing (or as a low density polyethylene bubble). The tubing is typically drawn into a negative ratio and cooled. That is, due to the speed of the film and related factors, the circumference of the cooled and drawn finishedtubing 100 is typically less than the circumference of theextrusion die plate 13, but in some applications may be the same size or even greater than the circumference of theextrusion die plate 13. -
Secondary extruders extruder material hoppers secondary extruders primary extruder 14 would supply a flexible, soft and pliable material while thesecondary extruders reclosable profiles secondary supply channels 38, 40 (typically implemented as heated hoses) and respective secondary diebody supply channels tubing 100 at a controlled rate (as well as a controlled temperature), with the control being the speed of the drive of thesecondary extruders reclosable profiles tubing 100. The resin (or other material) from thesecondary extruders reclosable profiles primary extruder 14 until it reaches theextrusion die plate 13 typically approximately one half inch (although other distances are envisioned) before both exit theextrusion die body 12. The control of the speed of the drive of thesecondary extruders secondary supply channels 38, 40 (is, in turn, typically controlled byCPU 200 or a similar processing device) thereby provides the ability to extrude more complex shapes of the interlocking elements than was previously possible. Additionally, it is envisioned that as many as nine, or even more, secondary extruders may be used, with respective material supplies and secondary supply channels to form the various complex shapes.FIGS. 2 a-2 y are representative of a sample of the many profile shapes that are possible with various embodiments of the present invention which, applicant believes, have been difficult, if not impossible, to obtain with the prior art, particularly with respect to multiple interlocking elements formed on a single profile. - The resulting configuration typically has many or all of the following advantages:
- 1. the velocity and speed of the resin for the locking mechanism is controlled separately from that of the tubing;
- 2. the velocity of the resin for the interlocking elements is controlled accurately and separately from that of the tubing;
- 3. the distance between sets of profiles is controlled;
- 4. more complex locking mechanisms may be manufactured;
- 5. the cooling rate of the interlocking elements is accurately controlled;
- 6. more complex multiple interlocking elements are possible;
- 7. interlocking elements with separators between the interlocking elements can be provided;
- 8. the shapes, construction and structural characteristics of the interlocking elements are controlled, including profiles with multiple interlocking elements;
- 9. the tubing may have two or more sets of profiles, each set provided with separate sources of profile control;
- 10. the separate resin source can be a co-extruder (or secondary extruder);
- 11. the profiles are provided with multiple interlocking elements;
- 12. a co-extruder (or secondary extruder) can provide resin flows to several sets of profiles or a separate co-extruder (or secondary extruder) can be used for each resin flow;
- 13. the flow of resin to the profiles can be controlled, so that the profiles cool at a controlled rate; and
- 14. the speed of the profile extrusion can be controlled so that the speed of the profile extrusion and the speed of the film extrusion are equal when the profile and the film come into contact with each other.
-
FIGS. 2 a and 2 b illustrate open and closed configurations of a first embodiment of the present invention. Firstreclosable profile 102 includes first and secondmale elements reclosable profile 104 includes first and second correspondingfemale elements hooks male elements zipper 100, thereby making the resulting package somewhat resistant to inside (sometimes called “pinch grip”) or inboard opening and more receptive to conventional outside or outboard opening by separating the edges of film. Of course, thezipper 100, along with terminal ends 218, 220, can be oriented so that the package is more receptive to interior or in-board (pinch-grip) opening. In other words, one side of the enlarged terminal arrow-shaped ends controls one function and the other side controls a different function. - The double zipper embodiment of
FIGS. 2 a and 2 b, as well as the following embodiments which include multiple zippers, provides for redundancy in that if one zipper fails, the other zipper may maintain the closing. These embodiments further provide for increased surface area engagement as well as a user tactile impression which is more robust and secure. Moreover, these embodiments include a narrow interface between the bottom of the profiles which is isolated and protected against deformation from draw down or draw up of the underlying film. These embodiments further allow the zipper and film to be bonded at the molecular level. -
FIG. 2 c illustrates a further embodiment a reversal of firstmale element 202 and firstfemale element 206 from the embodiment ofFIGS. 2 a and 2 b. -
FIG. 2 d illustrates a further embodiment with a thirdmale element 222 between first and secondfemale elements female element 224, supported bystem 225, between first and secondmale elements -
FIG. 2 e illustrates a further embodiment with a singlemale element 202 withadjacent guide elements female element 206 including aguide element 234 extending laterally, immediately belowinverted hook 212. -
FIG. 2 f illustrates a further embodiment wherein, as compared to the embodiment ofFIG. 2 e,guide element 232 is replaced by twoguide elements reclosable profile 104 and wherein thelateral guide element 234 is removed and twoguide elements female element 206, whereinguide element 240 is received betweenguide elements element 242 is received outward adjacent fromguide element 242. -
FIGS. 2 g and 2 h illustrate further embodiments wherein the firstreclosable profile 102 includes a firstfemale element 300 and a firstmale element 302 and thesecond profile 104 includes a secondmale element 304 which is engaged by the firstfemale element 300 and further includes third and fourthmale elements male element 302 therebetween upon closing.Stem 301 supportsfemale element 300. -
FIG. 2 i illustrates a further embodiment wherein firstreclosable profile 102 includes first, second and thirdmale elements bulbous elements male elements first space 322 while second and thirdmale elements second space 324. Secondreclosable profile 104 includes fourth and fifthmale elements bulbous elements male elements second spaces bulbous elements reclosable profiles -
FIGS. 2 j-2 y illustrate various embodiments similar to that ofFIG. 2 i, but with variations in the first through fifthbulbous elements - Furthermore,
FIGS. 2 s, 2 x and 2 y illustrate embodiments which further includeguide element 400 on secondreclosable profile 104, adjacent to either fourth or fifthmale element - Thus the several aforementioned objects and advantages are most effectively attained. Although preferred embodiments of the invention have been disclosed and described in detail herein, it should be understood that this invention is in no sense limited thereby and its scope is to be determined by that of the appended claims.
Claims (35)
1-20. (canceled)
21. A package comprising:
walls comprising a tubular film formed by a first extrudate; and
a double zipper integrally joined with the tubular film, the double zipper being formed from a second extrudate which is different from the first extrudate;
the double zipper including a first profile with at least two interlocking elements and a second profile with at least two interlocking elements, wherein the at least two interlocking elements from the first profile engage with the respective at least two interlocking elements from the second profile at a same time.
22. The package of claim 21 wherein the first extrudate is low density polyethylene material.
23. The package of claim 22 wherein the second extrudate is resin material.
24. The package of claim 21 wherein the second extrudate is colored.
25. The package of claim 21 wherein the tubular film is formed by drawing and cooling the first extrudate.
26. The package of claim 21 wherein the tubular film is formed simultaneously with the double zipper.
27. The package of claim 21 wherein the interlocking elements of the first profile are closely adjacent and wherein the interlocking elements of the second profile are closely adjacent.
28. A package comprising:
walls comprising a tubular film formed by a first extrudate; and
at least one interlocking element formed on the tubular film by extruding a second extrudate at a varying velocity in accordance with a desired shape of the at least one interlocking element.
29. The package of claim 28 wherein the first extrudate is low density polyethylene material.
30. The package of claim 29 wherein the second extrudate is resin material.
31. The package of claim 28 wherein the at least one interlocking element includes a plurality of interlocking elements.
32. The package of claim 31 wherein the plurality of interlocking elements are closely adjacent.
33. The package of claim 28 wherein the second extrudate is colored.
34. The package of claim 28 wherein the first extrudate is formed by drawing and cooling.
35. The package of claim 28 wherein the tubular film is formed simultaneously with the at least one interlocking element.
36. A package comprising:
a tubular film and an integrally joined double zipper, wherein the integrally joined double zipper includes a first set of closely adjacent interlocking elements and a second set of closely adjacent interlocking elements; and
wherein the tubular film is extruded from a primary extruder and the double zipper is extruded from at least one secondary extruder, different from the primary extruder.
37. The package of claim 36 wherein the first and second sets of interlocking elements each include male and female interlocking elements.
38. The package of claim 36 wherein the first set of interlocking elements includes at least two male elements and the second set of interlocking elements includes at least two female elements.
39. The package of claim 36 wherein each set of interlocking elements includes at least three interlocking elements.
40. The package of claim 36 wherein all interlocking elements of the first set can be interlocked with respective interlocking elements of the second set at a same time.
41. The package of claim 36 wherein each interlocking element of the first set is spaced to be interlocked a corresponding interlocking element of the second set at a same time.
42. A package comprising:
a tubular film extruded from a primary extruder and first and second sets of closely adjacent interlocking elements extruded from at least one secondary extruder;
wherein the interlocking elements and the tubular film are integrally joined.
43. The package of claim 42 wherein all interlocking elements of the first set can be interlocked with respective interlocking elements of the second set at a same time.
44. The package of claim 42 wherein the first set of interlocking elements includes two male interlocking elements and the second set of interlocking elements includes two female interlocking elements.
45. The package of claim 42 wherein each set of interlocking elements includes a male element and a female element.
46. The package of claim 42 wherein a distance between the first and second sets of interlocking elements is greater than a distance between interlocking elements within a respective set of interlocking elements.
47. A package comprising:
a tubular film extruded from a primary extruder and a plurality of sets of interlocking elements extruded from at least one secondary extruder;
wherein the interlocking elements are integrally joined to the tubular film and wherein a mass of the interlocking elements is controlled by velocity of extrudate from the at least one secondary extruder.
48. A package comprising:
a tubular film extruded from a primary extruder and a double zipper extruded from at least one secondary extruder;
wherein the double zipper is integrally joined to the tubular film, free of exposure of contact surfaces between the double zipper and the tubular film; and
the double zipper including a first profile with at least two closely adjacent interlocking elements and a second profile with at least two closely adjacent interlocking elements, wherein the at least two interlocking elements from the first profile engage with the respective at least two interlocking elements from the second profile at a same time.
49. A package comprising:
a tubular film extruded from a primary extruder and a double zipper extruded from at least one secondary extruder;
wherein the double zipper is integrally joined to the tubular film, free of a gap between the double zipper and the tubular film; and
the double zipper including a first profile with at least two closely adjacent interlocking elements and a second profile with at least two closely adjacent interlocking elements, wherein the at least two interlocking elements from the first profile engage with the respective at least two interlocking elements from the second profile at a same time.
50. A package comprising:
a tubular film extruded from a primary extruder and a plurality of sets of at least three interlocking elements extruded from at least one secondary extruder;
wherein the interlocking elements and the tubular film are integrally joined and wherein one set of at least three interlocking elements interlocks with another set of at least three interlocking elements.
51. The package of claim 50 wherein one set of at least three interlocking elements includes at least two female interlocking element and another set of at least three interlocking elements includes at least two male interlocking elements.
52. The package of claim 50 wherein one set of at least three interlocking elements includes only male elements and another set of at least three interlocking elements includes only female elements.
53. The package of claim 50 wherein the interlocking elements are closely adjacent within each set.
54. A package comprising:
a tubular film and an integrally joined double zipper, wherein the integrally joined double zipper includes a first set of closely adjacent interlocking elements and a second set of closely adjacent interlocking elements, wherein the interlocking elements of the first set are closely adjacent to each other and not interlockable with each other and the interlocking elements of the second set are adjacent to each other and not interlockable with each other and wherein the sets of interlocking elements are opposed to each other and wherein one set of interlocking elements is interlockable with the other set of interlocking elements;
wherein the tubular film is extruded from a primary extruder and the double zipper interlocking elements are extruded from at least one secondary extruder.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/089,025 US20110194790A1 (en) | 2007-07-24 | 2011-04-18 | Reclosable package or bag with double zipper or similar configuration |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US96175207P | 2007-07-24 | 2007-07-24 | |
US12/218,418 US20090028469A1 (en) | 2007-07-24 | 2008-07-15 | Method to accurately control size, velocity, and relative position sets of reclosable mechanism |
US12/220,371 US20090025191A1 (en) | 2007-07-24 | 2008-07-24 | Reclosable package or bag with double zipper or similar configuratiion |
US13/089,025 US20110194790A1 (en) | 2007-07-24 | 2011-04-18 | Reclosable package or bag with double zipper or similar configuration |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/220,371 Continuation US20090025191A1 (en) | 2007-07-24 | 2008-07-24 | Reclosable package or bag with double zipper or similar configuratiion |
Publications (1)
Publication Number | Publication Date |
---|---|
US20110194790A1 true US20110194790A1 (en) | 2011-08-11 |
Family
ID=40984730
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/220,371 Abandoned US20090025191A1 (en) | 2007-07-24 | 2008-07-24 | Reclosable package or bag with double zipper or similar configuratiion |
US13/089,025 Abandoned US20110194790A1 (en) | 2007-07-24 | 2011-04-18 | Reclosable package or bag with double zipper or similar configuration |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/220,371 Abandoned US20090025191A1 (en) | 2007-07-24 | 2008-07-24 | Reclosable package or bag with double zipper or similar configuratiion |
Country Status (2)
Country | Link |
---|---|
US (2) | US20090025191A1 (en) |
WO (1) | WO2010011425A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100209020A1 (en) * | 2009-02-17 | 2010-08-19 | William Delasalle | Closure assembly for packaging bags |
US20120033899A1 (en) * | 2009-04-17 | 2012-02-09 | Idemitsu Unitech Co., Ltd. | Zipper tape and zipper-tape-equipped bag |
US20160194117A1 (en) * | 2013-07-12 | 2016-07-07 | Idemitsu Unitech Co., Ltd. | Bag with zipper tape and manufacturing method therefor |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012064688A2 (en) * | 2010-11-11 | 2012-05-18 | Illinois Tool Works Inc. | Reclosable zipper with coextruded sealing elements |
FR3009546B1 (en) * | 2013-08-06 | 2016-03-25 | S2F Flexico | CLOSURE DEVICE WITH MULTIPLE COMPLEMENTARY PROFILES |
FR3101332B1 (en) * | 2019-09-27 | 2021-10-01 | S2F Flexico | Eco-designed closing device with high opening force |
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US5242516A (en) * | 1990-10-22 | 1993-09-07 | Reynolds Consumer Products Inc. | Co-extruded profile strip containing lateral webs with adhesive subdivided into ribs |
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US20090028469A1 (en) * | 2007-07-24 | 2009-01-29 | Illinois Tool Works Inc. | Method to accurately control size, velocity, and relative position sets of reclosable mechanism |
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- 2008-07-24 US US12/220,371 patent/US20090025191A1/en not_active Abandoned
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- 2009-06-05 WO PCT/US2009/046361 patent/WO2010011425A1/en active Application Filing
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USRE29331E (en) * | 1961-02-15 | 1977-08-02 | Kabushiki Kaisha Seisan Nihon Sha | Method and structure for reclosable containers |
US3579730A (en) * | 1965-10-22 | 1971-05-25 | Steven Ausnit | Apparatus for making a web having integral interlocking rib and groove portions |
USRE27174E (en) * | 1970-01-23 | 1971-09-21 | Reclosable bags with rib and groove elements | |
US3945403A (en) * | 1973-04-19 | 1976-03-23 | Minigrip, Inc. | Tube construction for fastener profile strips |
US3945730A (en) * | 1973-08-13 | 1976-03-23 | Ceskoslovenska Akademie Ved | Arrangement for measuring, checking and control of the position of chosen points of objects with respect to an optical aiming line |
US5242516A (en) * | 1990-10-22 | 1993-09-07 | Reynolds Consumer Products Inc. | Co-extruded profile strip containing lateral webs with adhesive subdivided into ribs |
US6066281A (en) * | 1998-06-16 | 2000-05-23 | Velcro Industries B.V. | Fastener products and their production |
US20040234172A1 (en) * | 2003-05-19 | 2004-11-25 | Pawloski James C. | Closure device for a reclosable pouch |
US20040234173A1 (en) * | 2003-05-19 | 2004-11-25 | Saad Zain E.M. | Closure device for a reclosable pouch |
US7137736B2 (en) * | 2003-05-19 | 2006-11-21 | S.C. Johnson Home Storage, Inc. | Closure device for a reclosable pouch |
US20060008184A1 (en) * | 2004-04-26 | 2006-01-12 | Borchardt Michael G | Closure device providing visual confirmation of occlusion |
US20050271308A1 (en) * | 2004-06-04 | 2005-12-08 | Pawloski James C | Closure device for a reclosable pouch |
US20050271307A1 (en) * | 2004-06-04 | 2005-12-08 | Pawloski James C | Closure device for a reclosable pouch |
US20050269733A1 (en) * | 2004-06-04 | 2005-12-08 | Pawloski James C | Method of and apparatus for forming multiple closure elements |
US7316052B2 (en) * | 2005-01-31 | 2008-01-08 | S.C. Johnson Home Storage, Inc. | Closure profile and die plate for extruding same |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100209020A1 (en) * | 2009-02-17 | 2010-08-19 | William Delasalle | Closure assembly for packaging bags |
US20120033899A1 (en) * | 2009-04-17 | 2012-02-09 | Idemitsu Unitech Co., Ltd. | Zipper tape and zipper-tape-equipped bag |
US20160194117A1 (en) * | 2013-07-12 | 2016-07-07 | Idemitsu Unitech Co., Ltd. | Bag with zipper tape and manufacturing method therefor |
US11279527B2 (en) * | 2013-07-12 | 2022-03-22 | Idemitsu Unitech Co., Ltd. | Bag with zipper tape and manufacturing method therefor |
Also Published As
Publication number | Publication date |
---|---|
WO2010011425A1 (en) | 2010-01-28 |
US20090025191A1 (en) | 2009-01-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ILLNOIS TOOL WORKS INC., ILLINOIS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KOSUB, ROY;MATIAS, VICTOR;REEL/FRAME:026150/0463 Effective date: 20080905 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |