US20150173417A1 - Safety mouthpiece - Google Patents
Safety mouthpiece Download PDFInfo
- Publication number
- US20150173417A1 US20150173417A1 US14/576,515 US201414576515A US2015173417A1 US 20150173417 A1 US20150173417 A1 US 20150173417A1 US 201414576515 A US201414576515 A US 201414576515A US 2015173417 A1 US2015173417 A1 US 2015173417A1
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- US
- United States
- Prior art keywords
- mouthpiece
- insert
- sleeve
- tubular body
- sealing member
- 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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- 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
- A24D1/04—Cigars; Cigarettes with mouthpieces or filter-tips
- A24D1/042—Cigars; Cigarettes with mouthpieces or filter-tips with mouthpieces
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/48—Fluid transfer means, e.g. pumps
- A24F40/485—Valves; Apertures
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/49—Child proofing
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- A24F47/008—
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/10—Devices using liquid inhalable precursors
Definitions
- the present invention relates to a safety mouthpiece for use with a cigarette and particularly for use with an electronic cigarette.
- E-cigarettes include a solution of material which can be volatized, either by heat or other means, to provide a vapor which simulates cigarette smoke.
- the material may include nicotine or flavorants chosen by the consumer.
- such electronic cigarettes, which are battery powered, also include an LED at the tip end to further simulate the smoking experience.
- the present invention provides a safety mouthpiece which can be placed over the end of an e-cigarette and which effectively blocks the flow path of air through the cigarette until the mouthpiece is moved with respect to the e-cigarette in a manner to open a valve allowing the e-cigarette to function as the user draws vaporized material through the safety mouthpiece.
- the safety mouthpiece includes a sleeve extending in sliding relationship to a tubular body of an e-cigarette at one end thereof.
- the sleeve has a fixed collar at one end slideably engaging the tubular body.
- An insert is fixedly attached to the end of the tubular body and includes a central aperture and a locking member.
- a sealing member is fixedly coupled to the end of the sleeve opposite the collar and includes a valve member for selectively sealing the central aperture of the insert.
- the sealing member includes a mating locking member such that the insert and sealing member can be axially locked into a position in which the central aperture is sealed.
- a spring extends between the fixed collar and the tubular body for urging the sealing member into engagement with the insert to seal a flow path along the tubular body of said cigarette.
- the spring is eliminated from the safety mouthpiece, such that it can be manually moved between a locked and unlocked position and remain in a selected position.
- a safety mouthpiece therefore, it is necessary for a user to consciously move the mouthpiece in a prescribed manner for unlocking the mouthpiece and subsequently opening the flow path for vapors from the e-cigarette.
- FIG. 1 is a perspective view, partly broken away, of an e-cigarette embodying the safety mouthpiece of the present invention
- FIG. 2 is a fragmentary, partly cutaway view of the safety mouthpiece embodying the present invention, shown in a locked position;
- FIG. 3 is a vertical cross-sectional view of the structure shown in FIG. 2 ;
- FIG. 4 is a fragmentary, partly cutaway view of the safety mouthpiece shown being moved from a locked position as shown in FIG. 2 toward an unlocked position as illustrated in FIG. 6 ;
- FIG. 5 is a vertical cross-sectional view of the structure shown in FIG. 4 ;
- FIG. 6 is a fragmentary, partly broken away view of the safety mouthpiece shown rotated to an unlocked position
- FIG. 7 is a vertical cross-sectional view of the structure shown in FIG. 6 ;
- FIG. 8 is a fragmentary, partly broken away, view of the safety mouthpiece showing the axial movement of the sealing member once in an unlocked position;
- FIG. 9 is a vertical cross-sectional view of the structure shown in FIG. 8 ;
- FIG. 10 is a fragmentary, partly broken away view of the safety mouthpiece in a fully operational position in which the sealing member is moved to a fully open position, allowing use of the e-cigarette;
- FIG. 11 is a vertical cross-sectional view of the structure shown in FIG. 10 ;
- FIG. 12 is an exploded perspective view of the safety mouthpiece shown in FIG. 1 with the components shown rotated to a locked position corresponding to FIGS. 2 and 3 ;
- FIG. 13 is an exploded perspective view of the safety mouthpiece with the components shown rotated to an unlocked position corresponding to FIGS. 10 and 11 ;
- FIG. 14 is a perspective, partly cutaway view of an alternative embodiment of the safety mouthpiece shown in a locked position.
- FIG. 15 is a vertical cross-sectional view of the safety mouthpiece shown in FIG. 14 .
- an e-cigarette 10 embodying the present invention namely, a safety mouthpiece 20 slideably and rotatably mounted to the end of the e-cigarette opposite the tip end 12 .
- the tip of e-cigarette 10 may include an LED 14 to simulate the act of smoking.
- the e-cigarette 10 includes a tubular body 16 , typically housing a battery, and a control circuit including a sensor for determining when the vaporizing element should be activated based upon an individual drawing on the mouthpiece 20 when in an open position to activate the e-cigarette. As schematically illustrated in FIG.
- tubular body 16 of the e-cigarette houses a source 18 of volatizable material, such as propylene glycol, which may include nicotine, flavorants, or other substance desired to be used in connection with the e-cigarette.
- An axially extending chamber 19 receives the material to be volatized and includes a heater (not shown) or other conventional device, which is selectively coupled to a battery (not shown) for powering the e-cigarette when a pressure drop is detected by a sensor contained within the tubular body 16 of the cigarette.
- All e-cigarettes have similar internal components for vaporizing or atomizing the source 18 of volatizable material. These components form no part of the present invention other than to provide a tubular housing to which the mouthpiece 20 is mounted.
- One such e-cigarette is described in PCT Publication No. WO 2014/110119, filed Jan. 8, 2014, and entitled ELECTRONIC CIGARETTE, the disclosure of which is incorporated herein by reference.
- Tubular body 16 defining the body of the e-cigarette 10 is typically made of metal or plastic material to which there is slideably mounted the safety mouthpiece 20 of the present invention.
- the mouthpiece 20 includes an outer sleeve 22 , which is relatively thin and typically made of stainless steel or other metal. It is slideably mounted to the tubular body 16 by a polymeric collar 24 fixedly secured within one end 23 of sleeve 22 but having an internal diameter slightly greater than the outer diameter of tubular body 16 .
- the sleeve surrounds a stationary locking insert 26 ( FIG. 3 ) which is fixedly mounted to the end 15 of tubular body 16 , such as by press-fitting, a bonding material, ultra-sonic welding, or the like depending upon the materials used.
- Insert 26 has flange 27 which overlies the cylindrical end of tubular body 16 and has a smaller outer diameter then the inner diameter of sleeve 22 to allow the mouthpiece 20 to move with respect to the e-cigarette body 16 .
- the insert 26 also has a cylindrical projection 29 which extends into tubular body 16 of the e-cigarette, as seen in FIG. 2 . Projection 29 assists in the fixed mounting of insert 26 to end 15 of tubular body 16 .
- Air flow through the e-cigarette 10 must be isolated and directed axially through the body of the e-cigarette to travel past the vaporizing section 19 and entrain the vaporized nicotine solution.
- Effective air seals are necessary in key mating surfaces of the sliding mouthpiece sleeve 22 to prevent undesired air ingress into the mouthpiece assembly during draw (puffing) by the user.
- the sliding mouthpiece sleeve 22 shown in FIG. 10 must create and maintain an adequate seal to prevent air ingress between the inside circumferential surfaces of collar 24 and the outside surface of tubular body 16 .
- an adequate seal must be created and maintained between the outside circumferential surface of the flange on insert member 26 and the inside surface of sliding mouthpiece sleeve 22 .
- These seals can be accomplished by employing suitable sealing rings or, in the case of insert 26 , by bonding the fixed insert to the inner cylindrical surface of sleeve 22 .
- Insert 26 has an axial port 28 which includes a conical opening defining a valve seat 30 .
- Insert 26 also includes axially and radially extending arcuate locking tabs 32 (best seen in FIGS. 13 and 14 ) which interlock with mating locking tabs 42 of a sealing member 40 , which is fixedly mounted to the end 21 of sleeve 22 .
- These pairs of angularly and axially spaced locking tabs 32 , 42 define a bayonet-type lock for securing the mouthpiece 20 to the e-cigarette tubular body 16 .
- Sealing member 40 includes an axially extending plunger 44 with a conical end 46 that, together with the valve seat 30 of insert 26 , form a valve which opens and closes the flow path (arrow A) of vapor through port 28 as the mouthpiece moves to the left or right, respectively, as seen in FIGS. 3 and 11 , between open and closed positions.
- the axially extending arcuate interlocking tabs 42 of the sealing member 40 interlock with tabs 32 of the insert 26 when in a locked position shown in FIGS. 2-5 .
- the mouthpiece 20 can be manually pulled and moved to the left in these figures against the force of a tension spring 50 , which tends to urge the sealing member 40 into a sealing position as illustrated in FIG. 3 .
- spring 50 has one end 52 secured to a tab 34 on insert 26 near end 15 of tubular body 16 and an opposite end 54 secured to a tab 25 on collar 24 .
- the tab 34 ( FIGS. 2 , 4 , 6 , 8 , 10 , and 13 ) on insert 26 is used to fixedly anchor end 52 of spring 50 to insert 26 while a similar tab 25 ( FIGS. 2 , 4 , 6 , 8 , 10 , and 13 ) on collar 24 anchors the opposite end of spring 50 to sliding collar 24 .
- the spring 50 is in tension to urge the sealing member 40 at the end of mouthpiece 20 into sealing engagement with the insert member 26 .
- the mouthpiece In this position, the mouthpiece must be held in an open position against the tension of spring 50 , typically by the user placing their fingers adjacent the collar 24 around tubular body 16 in an area indicated by arrow C in FIGS. 8-11 to prevent the spring 50 from returning the conical end 46 of plunger 44 to a sealed position with respect to valve seat 30 .
- the end of sealing member 40 includes a pair of arcuate exit apertures 48 ′ which align with the open spaces between the now spaced-apart locking tabs 32 , 42 when the mouthpiece is in an open position, as seen in FIGS.
- sealing member 40 will, under the tension of spring 50 , move to a sealed position, as illustrated in FIGS. 6 and 7 , whereupon the user can then rotate the sleeve 22 clockwise, such that tabs 32 and 42 interlock, as illustrated in FIGS. 2-3 , to prevent axial movement of the mouthpiece 20 to an open use position.
- FIGS. 14 and 15 An alternative embodiment of the invention is illustrated in FIGS. 14 and 15 .
- the spring 50 is deleted, such that the user need not hold the sleeve 22 in an open position with their fingers once in an unlocked position.
- the sliding friction between the collar 24 and the outer circumferential surface of tubular body 16 is selected such that the mouthpiece can be relatively easily slid along the e-cigarette but, in the embodiment shown in FIGS. 14 and 15 , remains in an open usable position for use of the cigarette.
- the collar 24 is in loose frictional engagement with tubular body 16 , allowing the spring to move the sealing member 40 against the insert 26 for closing the valve defined by the interface between the sealing plunger 46 and valve seat 30 under the tension of spring 50 .
- the spring constant is selected to provide the desired closure of the mouthpiece without requiring an excessive effort on the part of the user to maintain it open during use.
- the materials of the sealing member 40 , insert 26 , and collar 24 typically will be a polymeric material suitable for use with e-cigarettes. Such material may include a high density polymer, such as polyethylene or polyacetate.
- the spring 50 typically will be made of stainless steel, as will the outer sleeve 22 of mouthpiece 20 .
- the length of mouthpiece 20 is approximately 3 ⁇ 4 inch, while the diameter is only slightly more than the diameter of tubular body 16 of the e-cigarette 10 and dimensionally simulates a filter on the end of a normal cigarette.
Abstract
A safety mouthpiece which can be placed over the exit end of an electronic cigarette (e-cigarette) effectively blocks the flow path of vapor through the cigarette until the mouthpiece is moved with respect to the e-cigarette in a manner to open a valve. With the valve opened in the mouthpiece, the e-cigarette is allowed to function, and the user can draw vaporized material through the safety mouthpiece.
Description
- This application claims priority under 35 U.S.C. §119(e) and the benefit of U.S. Provisional Application No. 61/918,273 entitled SAFETY MOUTHPIECE, filed on Dec. 19, 2013, by David J. Gennrich, et al., the entire disclosure of which is incorporated herein by reference.
- The present invention relates to a safety mouthpiece for use with a cigarette and particularly for use with an electronic cigarette.
- In recent years, the popularity of electronic cigarettes (frequently referred to as e-cigarettes) has increased dramatically. This is due, in part, to a desire for those in the habit of smoking to continue to be able to smoke (or so-called vapor) in areas where smoking conventional cigarettes is prohibited. E-cigarettes include a solution of material which can be volatized, either by heat or other means, to provide a vapor which simulates cigarette smoke. The material may include nicotine or flavorants chosen by the consumer. Frequently, such electronic cigarettes, which are battery powered, also include an LED at the tip end to further simulate the smoking experience.
- Once an e-cigarette is left unattended, it is possible for anyone to pick the device up and use it. In order to deter unauthorized or unapproved use by others, including minors, there is a need for a reliable safety feature for e-cigarettes which would prevent such use and be relatively inexpensive, particularly in the environment of a disposable e-cigarette.
- The present invention provides a safety mouthpiece which can be placed over the end of an e-cigarette and which effectively blocks the flow path of air through the cigarette until the mouthpiece is moved with respect to the e-cigarette in a manner to open a valve allowing the e-cigarette to function as the user draws vaporized material through the safety mouthpiece.
- In a preferred embodiment of the invention, the safety mouthpiece includes a sleeve extending in sliding relationship to a tubular body of an e-cigarette at one end thereof. The sleeve has a fixed collar at one end slideably engaging the tubular body. An insert, is fixedly attached to the end of the tubular body and includes a central aperture and a locking member. A sealing member is fixedly coupled to the end of the sleeve opposite the collar and includes a valve member for selectively sealing the central aperture of the insert. The sealing member includes a mating locking member such that the insert and sealing member can be axially locked into a position in which the central aperture is sealed. In one embodiment, a spring extends between the fixed collar and the tubular body for urging the sealing member into engagement with the insert to seal a flow path along the tubular body of said cigarette.
- In another embodiment, the spring is eliminated from the safety mouthpiece, such that it can be manually moved between a locked and unlocked position and remain in a selected position. With such a safety mouthpiece, therefore, it is necessary for a user to consciously move the mouthpiece in a prescribed manner for unlocking the mouthpiece and subsequently opening the flow path for vapors from the e-cigarette.
- These and other features, objects and advantages of the present invention will become apparent upon reading the following description thereof together with reference to the accompanying drawings.
-
FIG. 1 is a perspective view, partly broken away, of an e-cigarette embodying the safety mouthpiece of the present invention; -
FIG. 2 is a fragmentary, partly cutaway view of the safety mouthpiece embodying the present invention, shown in a locked position; -
FIG. 3 is a vertical cross-sectional view of the structure shown inFIG. 2 ; -
FIG. 4 is a fragmentary, partly cutaway view of the safety mouthpiece shown being moved from a locked position as shown inFIG. 2 toward an unlocked position as illustrated inFIG. 6 ; -
FIG. 5 is a vertical cross-sectional view of the structure shown inFIG. 4 ; -
FIG. 6 is a fragmentary, partly broken away view of the safety mouthpiece shown rotated to an unlocked position; -
FIG. 7 is a vertical cross-sectional view of the structure shown inFIG. 6 ; -
FIG. 8 is a fragmentary, partly broken away, view of the safety mouthpiece showing the axial movement of the sealing member once in an unlocked position; -
FIG. 9 is a vertical cross-sectional view of the structure shown inFIG. 8 ; -
FIG. 10 is a fragmentary, partly broken away view of the safety mouthpiece in a fully operational position in which the sealing member is moved to a fully open position, allowing use of the e-cigarette; -
FIG. 11 is a vertical cross-sectional view of the structure shown inFIG. 10 ; -
FIG. 12 is an exploded perspective view of the safety mouthpiece shown inFIG. 1 with the components shown rotated to a locked position corresponding toFIGS. 2 and 3 ; -
FIG. 13 is an exploded perspective view of the safety mouthpiece with the components shown rotated to an unlocked position corresponding toFIGS. 10 and 11 ; -
FIG. 14 is a perspective, partly cutaway view of an alternative embodiment of the safety mouthpiece shown in a locked position; and -
FIG. 15 is a vertical cross-sectional view of the safety mouthpiece shown inFIG. 14 . - Referring initially to
FIG. 1 , there is shown ane-cigarette 10 embodying the present invention, namely, asafety mouthpiece 20 slideably and rotatably mounted to the end of the e-cigarette opposite thetip end 12. The tip ofe-cigarette 10 may include anLED 14 to simulate the act of smoking. Thee-cigarette 10 includes atubular body 16, typically housing a battery, and a control circuit including a sensor for determining when the vaporizing element should be activated based upon an individual drawing on themouthpiece 20 when in an open position to activate the e-cigarette. As schematically illustrated inFIG. 3 ,tubular body 16 of the e-cigarette houses asource 18 of volatizable material, such as propylene glycol, which may include nicotine, flavorants, or other substance desired to be used in connection with the e-cigarette. An axially extendingchamber 19 receives the material to be volatized and includes a heater (not shown) or other conventional device, which is selectively coupled to a battery (not shown) for powering the e-cigarette when a pressure drop is detected by a sensor contained within thetubular body 16 of the cigarette. All e-cigarettes have similar internal components for vaporizing or atomizing thesource 18 of volatizable material. These components form no part of the present invention other than to provide a tubular housing to which themouthpiece 20 is mounted. One such e-cigarette is described in PCT Publication No. WO 2014/110119, filed Jan. 8, 2014, and entitled ELECTRONIC CIGARETTE, the disclosure of which is incorporated herein by reference. -
Tubular body 16 defining the body of thee-cigarette 10 is typically made of metal or plastic material to which there is slideably mounted thesafety mouthpiece 20 of the present invention. Themouthpiece 20 includes anouter sleeve 22, which is relatively thin and typically made of stainless steel or other metal. It is slideably mounted to thetubular body 16 by apolymeric collar 24 fixedly secured within oneend 23 ofsleeve 22 but having an internal diameter slightly greater than the outer diameter oftubular body 16. The sleeve surrounds a stationary locking insert 26 (FIG. 3 ) which is fixedly mounted to theend 15 oftubular body 16, such as by press-fitting, a bonding material, ultra-sonic welding, or the like depending upon the materials used.Insert 26 hasflange 27 which overlies the cylindrical end oftubular body 16 and has a smaller outer diameter then the inner diameter ofsleeve 22 to allow themouthpiece 20 to move with respect to thee-cigarette body 16. Theinsert 26 also has acylindrical projection 29 which extends intotubular body 16 of the e-cigarette, as seen inFIG. 2 .Projection 29 assists in the fixed mounting ofinsert 26 toend 15 oftubular body 16. - Air flow through the
e-cigarette 10 must be isolated and directed axially through the body of the e-cigarette to travel past the vaporizingsection 19 and entrain the vaporized nicotine solution. Effective air seals are necessary in key mating surfaces of the slidingmouthpiece sleeve 22 to prevent undesired air ingress into the mouthpiece assembly during draw (puffing) by the user. The slidingmouthpiece sleeve 22 shown inFIG. 10 must create and maintain an adequate seal to prevent air ingress between the inside circumferential surfaces ofcollar 24 and the outside surface oftubular body 16. In addition, an adequate seal must be created and maintained between the outside circumferential surface of the flange oninsert member 26 and the inside surface of slidingmouthpiece sleeve 22. These seals can be accomplished by employing suitable sealing rings or, in the case ofinsert 26, by bonding the fixed insert to the inner cylindrical surface ofsleeve 22. - Insert 26 has an
axial port 28 which includes a conical opening defining avalve seat 30. Insert 26 also includes axially and radially extending arcuate locking tabs 32 (best seen inFIGS. 13 and 14 ) which interlock withmating locking tabs 42 of a sealingmember 40, which is fixedly mounted to theend 21 ofsleeve 22. These pairs of angularly and axially spacedlocking tabs mouthpiece 20 to the e-cigarettetubular body 16.Sealing member 40 includes an axially extendingplunger 44 with aconical end 46 that, together with thevalve seat 30 ofinsert 26, form a valve which opens and closes the flow path (arrow A) of vapor throughport 28 as the mouthpiece moves to the left or right, respectively, as seen inFIGS. 3 and 11 , between open and closed positions. The axially extendingarcuate interlocking tabs 42 of the sealingmember 40 interlock withtabs 32 of theinsert 26 when in a locked position shown inFIGS. 2-5 . Whensleeve 22 is rotated in a counterclockwise direction to an unlocked position as illustrated inFIGS. 6-11 , themouthpiece 20 can be manually pulled and moved to the left in these figures against the force of atension spring 50, which tends to urge the sealingmember 40 into a sealing position as illustrated inFIG. 3 . For such purpose,spring 50 has oneend 52 secured to atab 34 oninsert 26 nearend 15 oftubular body 16 and anopposite end 54 secured to atab 25 oncollar 24. The tab 34 (FIGS. 2 , 4, 6, 8, 10, and 13) oninsert 26 is used to fixedly anchorend 52 ofspring 50 to insert 26 while a similar tab 25 (FIGS. 2 , 4, 6, 8, 10, and 13) oncollar 24 anchors the opposite end ofspring 50 to slidingcollar 24. Thespring 50 is in tension to urge the sealingmember 40 at the end ofmouthpiece 20 into sealing engagement with theinsert member 26. - In the valve closed and locked position as illustrated in
FIGS. 2 and 3 , the flow path of vapor (normally in the direction indicated by arrow A inFIG. 3 ) is prevented, and the e-cigarette 10 cannot be used. To unlock the mouthpiece to allow use of the e-cigarette 10, it is necessary to rotate thesleeve 22 in a counterclockwise direction, as illustrated inFIGS. 8-11 , in which the interlockingbayonet tabs sleeve 22 andmouthpiece 20 rearwardly in the direction indicated by arrow B inFIGS. 8-11 . This opens theport 28 until it reaches a fully open position as shown inFIG. 11 . In this position, the mouthpiece must be held in an open position against the tension ofspring 50, typically by the user placing their fingers adjacent thecollar 24 aroundtubular body 16 in an area indicated by arrow C inFIGS. 8-11 to prevent thespring 50 from returning theconical end 46 ofplunger 44 to a sealed position with respect tovalve seat 30. - Thus, to use the electronic cigarette, it is necessary for the user to both rotate the
mouthpiece 20 in a counterclockwise direction approximately 90° and draw the sleeve mouthpiece rearwardly the distance of approximately ¼ inch against the tension ofspring 50 to open the vapor flow path fromvaporizer chamber 19 into the end area 17 (FIGS. 9 and 11 ) oftubular body 16, which is in communication with theport 28 ofinsert 26. The end of sealingmember 40 includes a pair ofarcuate exit apertures 48′ which align with the open spaces between the now spaced-apart lockingtabs FIGS. 10-12 , to provide a flow path from vaporizingchamber 19 to theexit apertures 48 at'the end ofmouthpiece 20. As long as thesleeve 22 is held in an open position, repeated puffs can be made of the electronic cigarette. Once released; sealingmember 40 will, under the tension ofspring 50, move to a sealed position, as illustrated inFIGS. 6 and 7 , whereupon the user can then rotate thesleeve 22 clockwise, such thattabs FIGS. 2-3 , to prevent axial movement of themouthpiece 20 to an open use position. - An alternative embodiment of the invention is illustrated in
FIGS. 14 and 15 . In this embodiment, thespring 50 is deleted, such that the user need not hold thesleeve 22 in an open position with their fingers once in an unlocked position. The sliding friction between thecollar 24 and the outer circumferential surface oftubular body 16 is selected such that the mouthpiece can be relatively easily slid along the e-cigarette but, in the embodiment shown inFIGS. 14 and 15 , remains in an open usable position for use of the cigarette. In the embodiments with the spring, thecollar 24 is in loose frictional engagement withtubular body 16, allowing the spring to move the sealingmember 40 against theinsert 26 for closing the valve defined by the interface between the sealingplunger 46 andvalve seat 30 under the tension ofspring 50. The spring constant is selected to provide the desired closure of the mouthpiece without requiring an excessive effort on the part of the user to maintain it open during use. The materials of the sealingmember 40, insert 26, andcollar 24 typically will be a polymeric material suitable for use with e-cigarettes. Such material may include a high density polymer, such as polyethylene or polyacetate. Thespring 50 typically will be made of stainless steel, as will theouter sleeve 22 ofmouthpiece 20. The length ofmouthpiece 20 is approximately ¾ inch, while the diameter is only slightly more than the diameter oftubular body 16 of the e-cigarette 10 and dimensionally simulates a filter on the end of a normal cigarette. - It will become apparent to those skilled in the art that various modifications to the preferred embodiments of the invention as described herein can be made without departing from the spirit or scope of the invention as defined by the appended claims.
Claims (20)
1. A safety mouthpiece for an electronic cigarette having a tubular body, said mouthpiece comprising:
a sleeve extending in movable relationship to said tubular body at one end thereof; and
a valve coupled between said sleeve and said tubular body for selectively sealing the flow path of material in said tubular body when said sleeve is moved to a predetermined position with respect to said tubular body.
2. The mouthpiece as defined in claim 1 and further including a collar at one end of said sleeve for movably supporting said sleeve with respect to said tubular body.
3. The mouthpiece as defined in claim 2 wherein said valve includes a valve seat formed on an insert secured to an end of said tubular body, and wherein said valve seat communicates with an axially extending port.
4. The mouthpiece as defined in claim 3 wherein said valve further includes a sealing member fixedly mounted to said sleeve at an end remote from said collar, wherein said sealing member includes a plunger having an end which selectively mates with said valve seat to seal said port.
5. The mouthpiece as defined in claim 4 wherein said insert and said sealing member include a bayonet connection with one another.
6. The mouthpiece as defined in claim 5 and further including a tension spring surrounding said tubular body within said sleeve, said spring coupled at one end to said collar and at an opposite end to said insert to urge said sealing member toward said insert for sealing said port.
7. The mouthpiece as defined in claim 6 wherein said sleeve is made of stainless steel.
8. The mouthpiece as defined in claim 7 wherein said insert, said collar, and said sealing member are made of a polymeric material.
9. The mouthpiece as defined in claim 4 wherein said valve seat is conical and said plunger includes a mating conical end.
10. A safety mouthpiece for an electronic cigarette having a tubular body, said mouthpiece comprising:
a sleeve extending in sliding relationship at one end of said tubular body, said sleeve having a fixed collar at one end and a sealing member at an opposite end for moving between an open use position and a closed locked position;
an insert fixedly attached to one end of said tubular body within said sleeve and including a central aperture defining a port, said insert including a locking member;
a sealing member fixedly coupled to said sleeve at said opposite end, said sealing member including a valve member for selectively sealing said central aperture of said insert, said sealing member including a mating locking member, such that said insert and sealing member can be axially locked into a position in which said central aperture is sealed; and
a spring extending between said fixed collar and said insert for urging said sleeve into a position in which said sealing member engages said insert to seal said port and thus the flow path along the tubular body of said cigarette.
11. The mouthpiece as defined in claim 10 wherein said locking member and mating locking member each comprise a pair of axially and radially extending arcuate arms offset from one another to define a bayonet mount.
12. The mouthpiece as defined in claim 11 wherein said insert has a conical valve seat in communication with said port and said sealing member has a conical tip which mates with said valve seat when said sleeve is in a closed position.
13. A safety mouthpiece for an electronic cigarette having a tubular body, said mouthpiece comprising:
a sleeve extending in sliding relationship to one end of said tubular body;
an insert fixedly attached to one end of said tubular body within said sleeve and including a central aperture, said insert including a locking member; and
a sealing member fixedly coupled to one end of said sleeve and including a valve member for selectively sealing said central aperture of said insert, said sealing member including a mating locking member such that said insert and sealing member can be axially locked into a position in which said central aperture is sealed.
14. The mouthpiece as defined in claim 13 and further including a collar at an opposite end of said sleeve for slideably supporting said sleeve with respect to said tubular body.
15. A safety mouthpiece for an electronic cigarette having a tubular body containing a source of material to be vaporized and an electrically actuated vaporizer in communication with said source of material, said mouthpiece comprising:
a sleeve extending in sliding relationship to said tubular body at one end thereof, said sleeve having a fixed collar at one end which slides over said tubular body;
an insert fixedly attached to said one end of said tubular body and including a central aperture, said insert including a locking member;
a sealing member fixedly coupled to an end of said sleeve remote from said tubular body and including a valve member for selectively sealing said central aperture of said insert, said sealing member including a mating locking member such that said insert and sealing member can be axially locked into a position in which said central aperture is sealed; and
a spring extending between said fixed collar and said insert for urging said sealing member into engagement with said insert to seal a flow path along the tubular body of said cigarette.
16. The safety mouthpiece as defined in claim 15 wherein said locking member and said mating locking member include offset radially and axially extending tabs.
17. The safety mouthpiece as defined in claim 16 wherein said locking member and said mating locking member define a bayonet mount.
18. The safety mouthpiece as defined in claim 16 wherein said sleeve is made of a metal.
19. The safety mouthpiece as defined in claim 18 wherein said insert and said sealing member are made of a polymeric material.
20. The safety mouthpiece as defined in claim 19 wherein said polymeric material is a high density polymer.
Priority Applications (1)
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US14/576,515 US20150173417A1 (en) | 2013-12-19 | 2014-12-19 | Safety mouthpiece |
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US201361918273P | 2013-12-19 | 2013-12-19 | |
US14/576,515 US20150173417A1 (en) | 2013-12-19 | 2014-12-19 | Safety mouthpiece |
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US20150173417A1 true US20150173417A1 (en) | 2015-06-25 |
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US14/576,515 Abandoned US20150173417A1 (en) | 2013-12-19 | 2014-12-19 | Safety mouthpiece |
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Owner name: L. PERRIGO COMPANY, MICHIGAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:GENNRICH, DAVID J.;COURY, PAUL C.;ROBB, JASON S.;REEL/FRAME:034698/0743 Effective date: 20141219 |
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