WO2020198447A1 - Dispositif de filtre pour installation ultérieure dans un dispositif à fumer électronique - Google Patents

Dispositif de filtre pour installation ultérieure dans un dispositif à fumer électronique Download PDF

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Publication number
WO2020198447A1
WO2020198447A1 PCT/US2020/024911 US2020024911W WO2020198447A1 WO 2020198447 A1 WO2020198447 A1 WO 2020198447A1 US 2020024911 W US2020024911 W US 2020024911W WO 2020198447 A1 WO2020198447 A1 WO 2020198447A1
Authority
WO
WIPO (PCT)
Prior art keywords
mouthpiece
filter device
filter
electronic smoking
housing
Prior art date
Application number
PCT/US2020/024911
Other languages
English (en)
Inventor
Brant SWIDLER
Original Assignee
Swidler Brant
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Swidler Brant filed Critical Swidler Brant
Publication of WO2020198447A1 publication Critical patent/WO2020198447A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F13/00—Appliances for smoking cigars or cigarettes
    • 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

Definitions

  • the invention relates to an attachment to common electronic smoking devices for filtering secondary vapor/aerosol that is exhaled from a user.
  • vaporizers Electronic smoking devices (referred to as“vaporizers” or“e-cigarettes”) sold by JUUL®, Vuse®, Blu®, Logic®, and others, are becoming increasingly popular. These vaporizers are mostly pocket-sized and mimic the shape and size of cigarettes or USB sticks. They work by activating a heating element which converts e-liquid, or“juice,” in a cartridge into vapor for inhalation by a user. The user exhales a visible vapor cloud which then dissipates into the surrounding air. Vaporizers are frequently used indoors and in many cases there are no clear regulations governing their use. There is often an awkwardness being around someone who is vaping, and the health effects of secondary inhalation of the exhaled vapor are not fully understood.
  • “Stealth” vaping is a reference to users who do not want to draw unwanted attention to themselves and therefore try to hide their exhaled vapor.
  • Common stealth vaping techniques include breathing techniques (holding one’s breath), exhaling into a clothing, such as a sleeve, or exhaling into an external material, such as a paper towel or terrycloth towel.
  • E-cigarette vapor typically contains propylene glycol, glycerin, nicotine, flavors, aroma transporters, and other substances.
  • propylene glycol constitutes about 65-90% of the formulation.
  • a separate, secondary device also typically requires the use of both hands, one to hold the e-cigarette and one to hold the secondary device.
  • Stand-alone devices are also subject to being misplaced or forgotten and make it more difficult to be stealthy while vaping.
  • Another prior art approach is mouth piece that is a fully integrated specialized vaporizer that relies on one-way valves that allow the user to inhale vapor from a heated juice cartridge and exhale into a filter cartridge.
  • specialized vaporizers cannot be used with popular e-cigarettes such as JUUL .
  • Another prior art approach is a casing that holds a vaporizer and a filter, but that device does not allow the user to vape from and then exhale into a single integrated mouth piece. As a consequence, a user needs to hold her breath while she adjusts the device to access the filter mechanism.
  • the present invention is directed to a filter device that may be retrofitted to commonly available e-cigarettes (such as JUUL), and which allows a user to inhale vapor from the e-cigarette through a mouthpiece on the filter device and, without any adjustment and without removing one’s mouth from the mouthpiece, exhale the vapor back through the mouthpiece and through a filter, thereby effectively removing the visible constituents of the vapor before it reaches the ambient atmosphere.
  • e-cigarettes such as JUUL
  • the mouthpiece of the e-cigarette is received in the body of the filter device thus allowing the mouthpiece on the filter device to be used both to inhale vapor from the e-cigarette and to accept the exhaled vapor and re-rout it through the filter.
  • the filter device includes two check valves, one between the inhale end of the e-cigarette and the mouthpiece on the filter device which opens when the user inhales and closes when the user exhales, and another between the mouthpiece of the filter device and the filter which closes when the user inhales and opens when the user exhales.
  • the size of the filter device is minimized to provide a low profile and enhance portability while still allowing the user to exhale at a rate as close to a normal exhale as possible. This may be accomplished by selecting appropriate filtration chemicals, methods of filtration, and product design. Some filtration methods use filter membranes to remove the visible vapor
  • respirator filters may be used for this purpose, as may various cloth materials such as, but not limited to, blends of microfibers,
  • the filter design may be optimized to increase both the surface area on the filter exposed to the exhaled vapor and the surface area on the filter exposed to the ambient atmosphere. Because a user’s exhale may contain high concentrations of water vapor which, over time, might clog the filter and thereby make it unduly difficult to exhale, the filter may include one or more water absorption materials, such as, but not limited to, cloth, wool, bamboo or fiber mixes. In addition or alternatively, the filter may include moisture wicking material to accelerate drying of the filter material.
  • Fig. 1 is a perspective view showing an embodiment of the filter device of the invention retrofitted to an electronic smoking device
  • Fig. 2 is a perspective view showing the filter device of Fig. 1 without the electronic smoking device;
  • Fig. 3 is an exploded perspective view of filter device of Fig. 1 ;
  • Figs. 4a-d are perspective and elevational views of a valve assembly for use in the filter device of the present invention.
  • Fig. 5 is a cross-sectional view taken along the line 5— 5 in Fig. 2;
  • Fig. 6 is a cross-sectional view taken along the line 6— 6 in Fig. 1 ;
  • Fig. 7a is an enlarged view of a portion of Fig. 6 showing the positon of the upper and lower check valves during inhalation;
  • Fig. 7b is an enlarged view of a portion of Fig. 6 showing the positon of the upper and lower check valves during exhalation.
  • Figs. 1-3 illustrate one embodiment of a filter device 10 in accordance with the present invention.
  • the filter device is shown retrofitted to a common electronic smoking device 600.
  • the mouthpiece end of the filter device 10 is the front end and the other end is the rear or back end
  • the mouthpiece end of the smoking device 600 is the front end and the other end is the rear or back end.
  • the filter device 10 includes a mouthpiece 100, a body 200 secured to the back of the mouthpiece, a valve assembly 300 disposed between the mouthpiece 100 and body 200, and a filter cartridge housing 400 removably secured to the body 200, preferably on the underside thereof at the back of the filter device 10. All of these components of the filter device 10 may be made of any suitably rigid material, such as plastic or metal, except that the valve assembly 300, which incorporates two living hinges, is preferably made of silicone rubber.
  • the filter device 10 of the invention may be retrofitted to a commercially available rectangular-shaped electronic smoking device 600 having a mouthpiece 602 at one end by sliding the electronic smoking device 600 into the body 200 above the bed 208 and below the bridge 204 until mouthpiece 602 is received in the rear opening 104 of the mouthpiece 100.
  • the mouthpiece 100 is ergonomically designed such that a user’s mouth can easily and comfortably cover the entire front end of the mouthpiece.
  • the shape and size of the electronic smoking device 600 will vary depending on the brand and version selected by the user, with some brands having an elongate rectangular shape as shown in the drawings, while others may be cylindrically-shaped.
  • the size of the openings in the body 200 that receive the electronic smoking device may be varied to accommodate electronic smoking devices of various shapes and sizes, and that a rectangular-shaped electronic smoking device is shown in the drawings for purposes of illustration only, without intending to limit the scope of the invention.
  • one or more lights (not shown) on the smoking device may serve to indicate that the smoking device is in use or charging.
  • the bridge 204 may include one or more openings or holes 206 that align with the light(s) on the smoking device.
  • Alignment of the hole(s) 206 with the light(s) may also serve to confirm that the electronic smoking device 600 is correctly positioned in the filter device 10. Because some electronic smoking devices 600 include a charging port on the underside of the back end, the length of the filter device 10 is preferably shorter than the length of the electronic smoking device 600 such that the back end of the smoking device is exposed, thus allowing the smoking device to be charged without removing it from the filter device 10.
  • valve assembly 300 is seated in the rear opening 104 of the mouthpiece 100 and is held in place by the front end 202 of the body 200.
  • An annular shoulder 202C extends from the front end 202 of the body and a tab 202B extends from the front of the annular shoulder.
  • the valve assembly 300 has an upper section 302 and a lower section 310.
  • the upper section 302 is dimensioned to seat in the upper opening 202A in the body 200 between the body portions 202B, C and the front end 210 of the bed 208
  • the lower section 310 is dimensioned to seat in the lower opening 202D between the bed 208 and the wall of the lower body portion 216.
  • the valve assembly 300 is secured in place by a shoulder 218 on the inner wall of the main body 200 which abuts the back 304 of the upper section 302, a blind slot 212 between the upper 302 and lower 310 sections which receives the front end 210 of the bed 208, an annular detent 310A on the back of the lower section 310 which abuts an annular shoulder 214A on the inner wall of the lower body portion 216, a rib 104A extending from the top of the inner wall of the mouthpiece 100 which abuts both the upper part of the front 304A of the upper section 302 and the front of the body portion 202B, and a rib 31 OB extending around the bottom and sides at the front of the lower section 310 which abuts the front of the lower body portion 216.
  • the removable filter cartridge housing 400 has a filter medium 500 disposed therein.
  • the side walls and bottom of the housing 400 have multiple slots 402 therein, with the walls of the slots 402 preferably angled to minimize the possibility of objects passing through the slots and damaging the filter medium 500.
  • the filter medium is shaped to occlude all of the slots 402 to prevent any exhaled vapor from escaping the filter cartridge without first passing through the filter medium 500.
  • the breath exhaled by the user will typically contain high concentrations of moisture, and depending on the composition of the filter medium 500, moisture may restrict airflow through the filter medium 500 thus requiring the user to exhale with greater force. Therefore, in addition to the filter medium 500, the cartridge 400 may optionally contain a moisture absorbent material, such as cloth (not shown), for removing moisture from the exhaled vapor before it passes through the filter medium 500.
  • the filter device 10 may be assembled by inserting the valve assembly 300 into the mouthpiece 100 until the upper section 302 abuts the rib 104A and the bottom of the lower section 310 abuts the upward sloping inner wall of the mouthpiece 100, and then attaching the body 200 by snap fitting the shoulder 214A on the lower body portion 216 past the detent 310A on the lower valve section 310 until the lower body portion abuts the rib 310B, the body portion 202B abuts the rib 104A, the shoulder 218 abuts the back of the upper valve section 302, a shoulder 220 on the outer wall of the body abuts the upper part of the back of the mouthpiece 100, and the front end 210 of the bed 208 seats in the slot 212, thereby creating a fluid tight seal between the
  • the filter cartridge housing 400 may then be removably secured to the body 200 by sliding the tab 408 at the back of the housing 400 over a detent 222 at the back of the bed 208 and sliding the tab 406 at the front of the housing into a complementary blind slot 202E in the back of the lower body portion 216, thereby creating a fluid tight seal between the cartridge housing 400 and the body 200. If necessary, the filter device may be disassembled by following these steps in reverse.
  • valve assembly 300 The opening 302A in the upper section 302 of valve assembly 300 is
  • the upper section 302 has an inwardly extending annular shoulder 314 which seats against the front of the mouthpiece 602 of the smoking device 600 when the smoking device is in its final position in the filter device 10.
  • the inner wall of the upper section 302 has a ring-shaped recess 308 in which a complementary gasket (not shown) is seated. The gasket is dimensioned to form a tight seal around the mouthpiece 602 when the smoking device 600 is received in the filter device 10 thereby further ensuring that when a user inhales through the mouthpiece 100, only vapor from the smoking device 600 will be inhaled.
  • the body 200 and valve assembly 300 are dimensioned to snugly receive the electronic smoking device 600, but with sufficient tolerance that the smoking device 600 may be removed from the filter device 10 without applying undue force.
  • the front end of the upper section 302 of the valve assembly 300 includes an integral mechanical check valve 306 joined to the main part of the upper section 302 at a living hinge point 306A.
  • the valve 306 is normally biased to the closed position shown in Fig. 7b wherein it closes the opening 302A in the upper section 302 and prevents vapor exhaled by a user from flowing back into the smoking device 600.
  • a gasket (not shown) may be secured to the lip of the valve 306 to ensure a fluid-tight seal when the valve 306 is in the closed position.
  • Lower section 310 also has an integral mechanical check valve 312 joined to the main part of lower section 310 at a living hinge point 312A.
  • Check valve 312 is normally biased to the closed position where it closes the opening 310C in the lower section 310 and prevents vapor in the filter cartridge housing 400 from being inhaled by a user inhaling vapor from the smoking device 600.
  • a gasket (not shown) may be secured to the lip of the valve 312 to ensure a fluid-tight seal when the valve is in the closed position.
  • the arrows denote air flow when a user inhales through the opening 102 at the front of the mouth piece 100.
  • Inhaling though the mouthpiece 100 creates a pressure differential on either side of the upper check valve 306, with the pressure on the back side of the valve 306 being greater than the pressure on the front side.
  • This pressure differential causes the valve 306 to pivot about its hinge point 306A to the open position shown in Fig. 7a, thereby establishing fluid communication between the mouthpiece 602 of the smoking device 600 and the mouthpiece 100 of the filter device 10.
  • Fig. 7b the arrows denote airflow when a user exhales though the mouthpiece 100.
  • exhaling creates a pressure differential on either side of the check valves 306, 312, with the pressure now being greater on the front side of the valves than the back side.
  • This pressure differential maintains the upper valve 306 in its biased, closed position and causes the lower valve 312 to pivot about is hinge point 312A to the open position shown in Fig. 7b, thereby exposing the opening 310C in the lower valve section 310 and establishing fluid communication between the mouthpiece 100 and the filter cartridge housing 400.
  • any one or more of the mouthpiece 100, body 200, valve assembly 300, filter cartridge housing 400, and filter medium 500 may be fixedly or separably joined to the other components of the filter device.

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  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

Dispositif de filtre pour l'installation ultérieure dans un dispositif à fumer électronique pour filtrer la vapeur exhalée avant qu'elle ne soit libérée dans l'atmosphère ambiante.
PCT/US2020/024911 2019-03-27 2020-03-26 Dispositif de filtre pour installation ultérieure dans un dispositif à fumer électronique WO2020198447A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962824483P 2019-03-27 2019-03-27
US62/824,483 2019-03-27

Publications (1)

Publication Number Publication Date
WO2020198447A1 true WO2020198447A1 (fr) 2020-10-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2020/024911 WO2020198447A1 (fr) 2019-03-27 2020-03-26 Dispositif de filtre pour installation ultérieure dans un dispositif à fumer électronique

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4369798A (en) * 1981-08-04 1983-01-25 Jackson Allen C Combination cigarette holder and cigarette smoke catcher
US20040237976A1 (en) * 2001-10-30 2004-12-02 Garthaffner Martin T. Reed valve controlled canister
US20070283971A1 (en) * 2003-12-12 2007-12-13 Smookzz License B.V. Device and Method for Filtering Smoke
KR20090127339A (ko) * 2007-04-16 2009-12-10 니뽄 다바코 산교 가부시키가이샤 봉상 끽연물품용 보조필터
US20150342259A1 (en) * 2014-05-30 2015-12-03 Carolina Vapordom, LLC E-liquid vaporizing apparatus
US20160270446A1 (en) * 2014-11-03 2016-09-22 Yuval Shenkal E-Cigarette with Valve Allowing Exhale Filter
US20160278429A1 (en) * 2009-08-28 2016-09-29 Adamic Kelly J Smoke and odor elimination filters and methods
US20180042299A1 (en) * 2015-03-03 2018-02-15 China Tobacco Yunnan Industrial Co., Ltd Cigarette smoking device having electronic atomization function and method for improving cigarette smoking quality

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4369798A (en) * 1981-08-04 1983-01-25 Jackson Allen C Combination cigarette holder and cigarette smoke catcher
US20040237976A1 (en) * 2001-10-30 2004-12-02 Garthaffner Martin T. Reed valve controlled canister
US20070283971A1 (en) * 2003-12-12 2007-12-13 Smookzz License B.V. Device and Method for Filtering Smoke
KR20090127339A (ko) * 2007-04-16 2009-12-10 니뽄 다바코 산교 가부시키가이샤 봉상 끽연물품용 보조필터
US20160278429A1 (en) * 2009-08-28 2016-09-29 Adamic Kelly J Smoke and odor elimination filters and methods
US20150342259A1 (en) * 2014-05-30 2015-12-03 Carolina Vapordom, LLC E-liquid vaporizing apparatus
US20160270446A1 (en) * 2014-11-03 2016-09-22 Yuval Shenkal E-Cigarette with Valve Allowing Exhale Filter
US20180042299A1 (en) * 2015-03-03 2018-02-15 China Tobacco Yunnan Industrial Co., Ltd Cigarette smoking device having electronic atomization function and method for improving cigarette smoking quality

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