EP3439492B1 - Electronic vaping device - Google Patents

Electronic vaping device Download PDF

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Publication number
EP3439492B1
EP3439492B1 EP17715482.0A EP17715482A EP3439492B1 EP 3439492 B1 EP3439492 B1 EP 3439492B1 EP 17715482 A EP17715482 A EP 17715482A EP 3439492 B1 EP3439492 B1 EP 3439492B1
Authority
EP
European Patent Office
Prior art keywords
cartridge
additive
example embodiment
roll
vapor
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.)
Active
Application number
EP17715482.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3439492C0 (en
EP3439492A1 (en
Inventor
Richard Jupe
George Karles
Gerd Kobal
San Li
Munmaya K. Mishra
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philip Morris Products SA
Original Assignee
Philip Morris Products SA
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 Philip Morris Products SA filed Critical Philip Morris Products SA
Publication of EP3439492A1 publication Critical patent/EP3439492A1/en
Application granted granted Critical
Publication of EP3439492C0 publication Critical patent/EP3439492C0/en
Publication of EP3439492B1 publication Critical patent/EP3439492B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • A24F40/42—Cartridges or containers for inhalable precursors
    • 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
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/10—Chemical features of tobacco products or tobacco substitutes
    • A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
    • A24B15/167—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes in liquid or vaporisable form, e.g. liquid compositions for electronic cigarettes
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/24—Treatment of tobacco products or tobacco substitutes by extraction; Tobacco extracts
    • A24B15/26—Use of organic solvents for extraction
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
    • A24B15/281—Treatment of tobacco products or tobacco substitutes by chemical substances the action of the chemical substances being delayed
    • A24B15/283—Treatment of tobacco products or tobacco substitutes by chemical substances the action of the chemical substances being delayed by encapsulation of the chemical substances
    • 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
    • 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
    • A24F40/46—Shape or structure of electric heating means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F47/00—Smokers' requisites not otherwise provided for
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/105—Induction heating apparatus, other than furnaces, for specific applications using a susceptor
    • H05B6/108—Induction heating apparatus, other than furnaces, for specific applications using a susceptor for heating a fluid

Definitions

  • the present disclosure relates to a cartridge for an electronic vaping device and a method of enhancing a vapor of an electronic vaping device.
  • Document WO 2015/013135 discloses an electronic smoking article operable to produce an aerosol comprising a liquid aerosol formulation; a heater operable to at least partially volatilize the liquid aerosol formulation and form an aerosol; and a filter segment formed of polylactic acid fibers or a crimped polylactic acid film, the filter segment including at least one additive and being positioned downstream of the heater and operable to elute the at least one additive into the aerosol as the aerosol passes through the filter segment.
  • An e-vaping device includes a heater element which vaporizes a pre-vapor formulation to produce a "vapor.”
  • the heater element may include a resistive heater coil, with a wick extending therethrough.
  • the e-vaping device includes a power supply, such as a battery, arranged in the device.
  • the battery is electrically connected to the heater, such that the heater heats to a temperature sufficient to convert the pre-vapor formulation to a vapor.
  • the vapor exits the e-vaping device through a mouthpiece including at least one outlet.
  • At least one example embodiment relates to a cartridge of an electronic vaping device including a roll of material that is coated, impregnated, or coated and impregnated with at least one additive.
  • a cartridge of an electronic vaping device includes a housing extending in a longitudinal direction; a reservoir containing a pre-vapor formulation; a heating element in the housing; and a roll of material including a plurality of layers of rolled material and having a channel extending longitudinally therethrough.
  • the heating element is in fluid communication with the reservoir, and the heating element is configured to generate a vapor.
  • the housing includes a mouth end and a connection end.
  • the reservoir is contained in the housing.
  • the roll of material includes at least one of a coating and an impregnated material. The roll of material is positioned in the housing such that at least some of the vapor passes through the roll of material.
  • the roll of material is removable from the cartridge.
  • the roll of material comprises at least one of a polymeric film, paper, and a film of reconstituted tobacco material.
  • the roll of material may be positioned between the heating element and the mouth end of the housing.
  • the coating and the impregnated material each include at least one additive, the additive including at least one of a flavorant, a pH adjusting agent, a vapor former, tobacco material, and nicotine.
  • the roll of material includes the coating and the impregnated material, and the coating and the impregnated material includes different additives.
  • the additive is an encapsulated additive.
  • the encapsulated additive may include at least one shell layer and an inner core.
  • the encapsulated additive may be configured to release the additive in response to one or more release activation mechanisms, such as heat and moisture.
  • At least one of the at least one shell layer and the inner core includes the additive.
  • the encapsulated additive may include a plurality of capsules.
  • the at least one shell layer of some of the plurality of capsules may have different thicknesses from the at least one shell layer of others of the plurality of capsules so as to release the additives at different times.
  • the encapsulated additive may include a plurality of capsules.
  • the at least one shell layer of some of the plurality of capsules formed of different polymers than the at least one shell layer of others of the plurality of capsules so as to release the additives at different times.
  • the different polymers may have different dissolution rates, different release rates, or both.
  • the encapsulated additive includes a plurality of capsules, and each of the plurality of capsules releases the additives at the same time.
  • the encapsulated additive includes tobacco, tobacco flavors, or both, and at least one polymer.
  • the polymer includes at least one of microcrystalline cellulose, pectin, hydroxypropyl methyl cellulose, and sodium alginate.
  • the pre-vapor formulation excludes nicotine and the additive includes nicotine.
  • At least one example embodiment relates to a kit including a plurality of sheets of material.
  • a kit in at least one example embodiment, includes a plurality of sheets of material configured to be rolled and placed in a cartridge of an electronic vaping device.
  • Each of the plurality of sheets of material includes at least one of a coating and an impregnated material.
  • Each of the plurality of sheets of material comprises at least one of a polymeric film, paper, and a film of reconstituted tobacco material.
  • the coating and the impregnated material may each include at least one additive.
  • the additive may include at least one of a flavorant, a pH adjusting agent, a vapor former, tobacco material, and nicotine.
  • At least one of the plurality of sheets of material includes the coating and the impregnated material, and the coating and the impregnated material include different additives.
  • the additive is an encapsulated additive.
  • the encapsulated additive may be configured to release the additive in response to at least one of heat and moisture.
  • the encapsulated additive may include at least one shell layer and an inner core.
  • the encapsulation additive may be in the form of matrix encapsulation, that is, dispersed within a polymer film, such as a coating.
  • each of the plurality of sheets includes different additives. In another example embodiment, each of the plurality of sheets includes the same additive.
  • At least one example embodiment relates to a method of enhancing a vapor of an electronic vaping device.
  • a method of enhancing a vapor of an electronic vaping device includes rolling a sheet of material to form a rolled sheet of material including a plurality of layers of the sheet of material, and inserting the rolled sheet of material between a heater and a mouth end of a cartridge.
  • the sheet of material includes at least one of a coating and an impregnated material.
  • the sheet of material comprises at least one of a polymeric film, paper, and a film of reconstituted tobacco material.
  • the coating and the impregnated material may each include at least one additive, the additive including at least one of a flavorant, a pH adjusting agent, a vapor former, tobacco material, and nicotine.
  • first, second, third, and so forth may be used herein to describe various elements, components, regions, layers or sections, these elements, components, regions, layers, or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer, or section from another element, component, region, layer, or section. Therefore, a first element, component, region, layer, or section discussed below could be termed a second element, component, region, layer, or section without departing from the teachings of example embodiments.
  • spatially relative terms for example, “beneath,” “below,” “lower,” “above,” “upper,” and the like
  • the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as “below” or “beneath” other elements or features would then be oriented “above” the other elements or features. Therefore, the term “below” may encompass both an orientation of above and below.
  • the device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
  • Example embodiments are described herein with reference to cross-sectional illustrations that are schematic illustrations of idealized embodiments (and intermediate structures) of example embodiments. As such, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques or tolerances, are to be expected. Therefore, example embodiments should not be construed as limited to the shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing.
  • FIG. 1 is a side view of an e-vaping device according to at least one example embodiment.
  • an electronic vaping device (e-vaping device) 60 may include a replaceable cartridge (or first section) 70 and a reusable battery section (or second section) 72, which may be coupled together at a threaded connector 205.
  • the connector 205 may be any type of connector, such as a snug-fit, detent, clamp, bayonet, clasp, and combinations thereof.
  • the first section 70 may include a housing 6 and the second section 72 may include a second housing 6'.
  • the e-vaping device 60 includes a mouth-end insert 8.
  • the housing 6 and the second housing 6' may have a generally cylindrical cross-section. In other example embodiments, the housings 6, 6' may have a generally triangular cross-section along one or more of the first section 70 and the battery section 72.
  • FIG. 2 is a cross-sectional view along line II-II of the e-vaping device of FIG. 1 .
  • the first section 70 may include a reservoir 22 configured to contain a pre-vapor formulation and a heater 14 that may vaporize the pre-vapor formulation, which may be drawn from the reservoir 22 by a wick 28.
  • the e-vaping device 60 may include the features set forth in U.S. Patent Application Publication No. 2013/0192623 to Tucker et al. filed January 31, 2013 .
  • the pre-vapor formulation is a material or combination of materials that may be transformed into a vapor.
  • the pre-vapor formulation may be at least one of a liquid, solid, or gel formulation including, but not limited to, water, beads, solvents, active ingredients, ethanol, plant extracts, natural or artificial flavors, vapor formers such as glycerin and propylene glycol, and combinations thereof.
  • the first section 70 may include the housing 6 extending in a longitudinal direction and an inner tube (or chimney) 62 coaxially positioned within the housing 6.
  • a nose portion 61 of a gasket (or seal) 15 may be fitted into the inner tube 62, while at the other end, an outer perimeter of the gasket 15 may provide a seal with an interior surface of the outer housing 6.
  • the gasket 15 may also include a central, longitudinal air passage 20, which opens into an interior of the inner tube 62 that defines a central channel 21.
  • a transverse channel 33 at a backside portion of the gasket 15 may intersect and communicate with the air passage 20 of the gasket 15. This transverse channel 33 assures communication between the air passage 20 and a space 35 defined between the gasket 15 and a cathode connector piece 37.
  • the cathode connector piece 37 may include a threaded section for effecting the connection between the first section 70 and the battery section 72.
  • more than two air inlet ports 44 may be included in the housing 6.
  • a single air inlet port 44 may be included in the outer housing 6.
  • Such arrangement allows for placement of the air inlet ports 44 close to the connector 205 without occlusion by the presence of the cathode connector piece 37. This arrangement may also reinforce the area of air inlet ports 44 to facilitate precise drilling of the air inlet ports 44.
  • the air inlet ports 44 may be provided in the connector 205 instead of in the outer housing 6.
  • the at least one air inlet port 44 may be formed in the outer housing 6, adjacent the connector 205 to minimize the chance of an adult vaper's fingers occluding one of the ports and to control the resistance-to-draw (RTD) during vaping.
  • the air inlet ports 44 may be machined into the housing 6 with precision tooling such that their diameters are closely controlled and replicated from one e-vaping device 60 to the next during manufacture.
  • the air inlet ports 44 may be sized and configured such that the e-vaping device 60 has a RTD in the range of from about 60 millimetres of water to about 150 millimetres of water.
  • a nose portion 93 of a downstream gasket 10 may be fitted into a downstream end portion 81 of the inner tube 62.
  • An outer perimeter of the gasket 10 may provide a substantially tight seal with an interior surface 97 of the housing 6.
  • the downstream gasket 10 may include a central channel 63 disposed between the inner passage 21 of the inner tube 62 and the interior of a mouth-end insert 8, which may transport the vapor from the inner passage 21 to the mouth-end insert 8.
  • the space defined between the gaskets 10 and 15 and the outer housing 6 and the inner tube 62 may establish the confines of a reservoir 22.
  • the reservoir 22 may contain a pre-vapor formulation, and optionally a storage medium (not shown) configured to store the pre-vapor formulation therein.
  • the storage medium may include a winding of cotton gauze or other fibrous material about the inner tube 62.
  • the reservoir 22 may be contained in an outer annulus between the inner tube 62 and the housing 6 and between the gaskets 10 and 15. Therefore, the reservoir 22 may at least partially surround the central inner passage 21.
  • the heater 14 may extend transversely across the inner passage 21 between opposing portions of the reservoir 22. In some example embodiments, the heater 14 may extend parallel to a longitudinal axis of the inner passage 21.
  • the reservoir 22 may be sized and configured to hold enough pre-vapor formulation such that the e-vaping device 60 may be configured for vaping for at least about 200 seconds. Moreover, the e-vaping device 60 may be configured to allow each puff to last a maximum of about 5 seconds.
  • the storage medium may be a fibrous material including at least one of cotton, polyethylene, polyester, rayon and combinations thereof.
  • the fibers may have a diameter ranging in size from about 6 microns to about 15 microns (for example, about 8 microns to about 12 microns or about 9 microns to about 11 microns).
  • the storage medium may be a sintered, porous or foamed material.
  • the fibers may be sized to be irrespirable and may have a cross-section which has a Y-shape, cross shape, clover shape or any other suitable shape.
  • the reservoir 22 may include a filled tank lacking any storage medium and containing only pre-vapor formulation.
  • pre-vapor formulation may be transferred from the reservoir 22, storage medium, or both, to the proximity of the heater 14 via capillary action of the wick 28.
  • the wick 28 may include at least a first end portion and a second end portion, which may extend into opposite sides of the reservoir 22.
  • the heater 14 may at least partially surround a central portion of the wick 28 such that when the heater 14 is activated, the pre-vapor formulation in the central portion of the wick 28 may be vaporized by the heater 14 to form a vapor.
  • the wick 28 may include filaments (or threads) having a capacity to draw the pre-vapor formulation.
  • the wick 28 may be a bundle of glass (or ceramic) filaments, a bundle including a group of windings of glass filaments, and so forth, all of which arrangements may be capable of drawing pre-vapor formulation via capillary action by interstitial spacings between the filaments.
  • the filaments may be generally aligned in a direction perpendicular (transverse) to the longitudinal direction of the e-vaping device 60.
  • the wick 28 may include one to eight filament strands, each strand comprising a plurality of glass filaments twisted together. The end portions of the wick 28 may be flexible and foldable into the confines of the reservoir 22.
  • the filaments may have a cross-section that is generally cross-shaped, clover-shaped, Y-shaped, or in any other suitable shape.
  • the wick 28 may include any suitable material or combination of materials. Examples of suitable materials may be, but not limited to, glass, ceramic- or graphite-based materials.
  • the wick 28 may have any suitable capillarity drawing action to accommodate pre-vapor formulations having different physical properties such as density, viscosity, surface tension and vapor pressure.
  • the wick 28 may be non-conductive.
  • the heater 14 may include a wire coil which at least partially surrounds the wick 28.
  • the wire may be a metal wire.
  • the heater coil may extend fully or partially along the length of the wick 28.
  • the heater coil may further extend fully or partially around the circumference of the wick 28.
  • the heater coil 14 may or may not be in contact with the wick 28.
  • the heater coil may be formed of any suitable electrically resistive materials.
  • suitable electrically resistive materials may include, but not limited to, copper, titanium, zirconium, tantalum and metals from the platinum group.
  • suitable metal alloys include, but not limited to, stainless steel, nickel, cobalt, chromium, aluminum-titanium-zirconium, hafnium, niobium, molybdenum, tantalum, tungsten, tin, gallium, manganese and iron-containing alloys, and super-alloys based on nickel, iron, cobalt, stainless steel.
  • the heater 14 may be formed of nickel aluminide, a material with a layer of alumina on the surface, iron aluminide and other composite materials, the electrically resistive material may optionally be embedded in, encapsulated or coated with an insulating material or vice-versa, depending on the kinetics of energy transfer and the external physicochemical properties required.
  • the heater 14 may include at least one material selected from the group consisting of stainless steel, copper, copper alloys, nickel-chromium alloys, super alloys and combinations thereof.
  • the heater 14 may be formed of nickel-chromium alloys or iron-chromium alloys.
  • the heater 14 may be a ceramic heater having an electrically resistive layer on an outside surface thereof.
  • the heater 14 may heat pre-vapor formulation in the wick 28 by thermal conduction.
  • heat from the heater 14 may be conducted to the pre-vapor formulation by means of a heat conductive element or the heater 14 may transfer heat to the incoming ambient air that is drawn through the e-vaping device 60 during vaping, which in turn heats the pre-vapor formulation by convection.
  • the heater 14 may include a porous material which incorporates a resistance heater formed of a material having a high electrical resistance capable of generating heat quickly.
  • the second section 72 of the e-vaping device 60 may include a puff sensor 16 responsive to air drawn into the second section 72 via an air inlet port 44a adjacent a free end or tip of the e-vaping device 60.
  • the second section 72 may also include a battery 1 and a control circuit 200.
  • the battery 1 may be electrically connectable with the heater 14 of the first section 70 upon actuation of the puff sensor 16. Air is drawn primarily into the first section 70 through one or more air inlets 44, which may be located along the housing or at the connector 205.
  • the power supply 1 may include a battery arranged in the e-vaping device 60.
  • the power supply 1 may be a Lithium-ion battery or one of its variants, for example a Lithium-ion polymer battery.
  • the power supply 1 may be a nickel-metal hydride battery, a nickel cadmium battery, a lithium-manganese battery, a lithium-cobalt battery or a fuel cell.
  • the e-vaping device 60 may be usable by an adult vaper until the energy in the power supply 1 is depleted or in the case of lithium polymer battery, a minimum voltage cut-off level is achieved.
  • the power supply 1 may be rechargeable and may include circuitry configured to allow the battery to be chargeable by an external charging device.
  • an USB charger or other suitable charger assembly may be used.
  • the e-vaping device 60 may include the control circuit 200 and the puff sensor 16.
  • the puff sensor 16 may be configured to sense an air pressure drop and initiate application of voltage from the power supply 1 to the heater 14.
  • the control circuit 200 may also include a heater activation light 48 configured to glow when the heater 14 is activated.
  • the heater activation light 48 may include a light-emitting diode (LED) and may be at an upstream end of the e-vaping device 60.
  • the heater activation light 48 may be arranged to be visible to an adult vaper during vaping.
  • the heater activation light 48 may be utilized for e-vaping system diagnostics or to indicate that recharging is in progress.
  • the heater activation light 48 may also be configured such that the adult vaper may activate, deactivate, or activate and deactivate the heater activation light 48 for privacy.
  • the heater activation light 48 may be on a tip end of the e-vaping device 60 or on a side of the housing 6.
  • the at least one air inlet 44a may be located adjacent the puff sensor 16, such that the puff sensor 16 may sense air flow indicative of an adult vaper taking a puff and activates the power supply 1 and the heater activation light 48 to indicate that the heater 14 is working.
  • the heater activation light 48 may be located at or on the tip end of the e-vaping device. In other example embodiments, the heater activation light 48 may be located on a side portion of the housing 6.
  • control circuit 200 may supply power to the heater 14 responsive to the puff sensor 16.
  • control circuit may include a maximum, time-period limiter.
  • control circuit 200 may include a manually operable switch for an adult vaper to initiate a puff.
  • the time-period of the electric current supply to the heater 14 may be pre-set depending on the amount of pre-vapor formulation desired to be vaporized.
  • the circuitry may supply power to the heater 14 as long as the puff sensor 16 detects a pressure drop.
  • the heater 14 When activated, the heater 14 may heat a portion of the wick 28 surrounded by the heater for less than about 10 seconds.
  • the inner tube 62 may include a pair of opposing slots, such that the wick 28 and the leading end 109, 109' of the heater 14 may extend out from the respective opposing slots.
  • the provision of the opposing slots in the inner tube 62 may facilitate placement of the heater 14 and wick 28 into position within the inner tube 62 without impacting edges of the slots and the coiled section of the heater 14. Accordingly, edges of the slots may not be allowed to impact and alter the coil spacing of the heater 14, which would otherwise create potential sources of hotspots.
  • the inner tube 62 may have a diameter of about 4 millimetres and each of the opposing slots may have major and minor dimensions of about 2 millimetres by about 4 millimetres.
  • the first section 70 may be replaceable. In other words, once the pre-vapor formulation of the cartridge is depleted, only the first section 70 may be replaced.
  • An alternate arrangement may include an example embodiment where the entire e-vaping device 60 may be disposed once the reservoir 22 is depleted.
  • the e-vaping device 60 may be about 80 millimetres to about 110 millimetres long and about 7 millimetres to about 8 millimetres in diameter.
  • the e-vaping device may be about 84 millimetres long and may have a diameter of about 7.8 millimetres.
  • a mouth-end insert 8 may be positioned at a mouth end 32 of the first section 70.
  • the mouth-end insert 8 includes at least two outlets, which may be located off-axis from the longitudinal axis of the e-vaping device 60.
  • the outlets may be angled outwardly in relation to the longitudinal axis of the e-vaping device 60.
  • the outlets may be substantially uniformly distributed about the perimeter of the mouth-end insert 8 so as to substantially uniformly distribute vapor in an adult vaper's mouth during vaping and create a greater perception of fullness in the mouth. Therefore, as the vapor passes into the adult vaper's mouth, the vapor may enter the mouth and may move in different directions so as to provide a full mouth feel.
  • the mouth-end insert 8 may be removable to allow for the insertion, removal, or insertion and removal of a roll of material 210 that is formed of a sheet of material 260 (shown in FIGS. 4 and 5 ) that is impregnated with, coated with, or impregnated with and coated with one or more additives.
  • a roll of material 210 that is formed of a sheet of material 260 (shown in FIGS. 4 and 5 ) that is impregnated with, coated with, or impregnated with and coated with one or more additives.
  • the roll of material 210 may be removed.
  • an adult vaper may replace the roll of material 210 with a new roll of material 210.
  • the adult vaper may alter the flavor profile of the vapor by choosing a roll of material 210 with the desired additives that provide desired vapor characteristics. Therefore, the adult vaper may customize the vaping experience.
  • the roll of material 210 may be positioned between the heater 14 and the mouth-end insert 8.
  • the roll of material 210 may include a coating of a material, may be impregnated with a material, or both.
  • the material may include at least one of an additive, one or more carriers, binders, and combinations thereof.
  • the additive may include at least one of a flavorant, a pH adjusting agent, a vapor former, tobacco material, and nicotine.
  • the additive may be included in the roll of material 210 in an amount ranging from about 0.01 percent to about 50 percent by weight based on the weight of the roll of material 210.
  • the flavorant may include any suitable flavor including menthol, mint flavors, fruit flavors, herb flavors, vegetable flavors, and the like, or combinations thereof.
  • the vapor former may include polyhydric alcohols, such as propylene glycol, triethylene glycol, 1,3-butanediol and glycerin; esters of polyhydric alcohols, such as glycerol mono-, di- or triacetate; and aliphatic esters of mono-, di- or polycarboxylic acids, such as at least one of dimethyl dodecanedioate and dimethyl tetradecanedioate.
  • Example vapor formers are polyhydric alcohols or mixtures thereof, such as propylene glycol, triethylene glycol, 1,3-butanediol and glycerin.
  • the pH modifying agent includes at least one of an acid or a base.
  • the pH modifying agent is selected to adjust a pH of the vapor to a desired level.
  • the tobacco material may include material from any member of the genus Nicotiana. In at least one example embodiment, the tobacco material includes a blend of two or more different tobacco varieties.
  • suitable types of tobacco materials include flue-cured tobacco, Burley tobacco, Dark tobacco, Maryland tobacco, Oriental tobacco, rare tobacco, specialty tobacco, and blends thereof.
  • the tobacco material may be provided in any suitable form, including tobacco lamina, processed tobacco materials, such as volume expanded or puffed tobacco, processed tobacco stems, such as cut-rolled or cut-puffed stems, reconstituted tobacco materials, and blends thereof.
  • the additive includes nicotine.
  • the pre-vapor formulation does not include nicotine, and nicotine is impregnated in the roll of material 210, coated on the roll of material 210, or both.
  • the additives may include volatile, heat sensitive additives that are not easily included in the pre-vapor formulation, additives that are difficult to store, or both. Inclusion of such additives in the roll of material 210 may reduce or prevent undesired chemical reactions with other ingredients of the pre-vapor formulation and loss of the additives prior to vaping.
  • the carrier, binder, or both may include food-grade adhesives, polymers, solvents, or combinations thereof.
  • FIGS. 3A and 3B are perspective views of rolls of material according to at least one example embodiment.
  • the roll of material 210 may include overlapping edges 212, 214 and an opening 216 extending through the roll of material 210.
  • vapor travels through the opening 216 in the roll of material 210 and the materials coated, impregnated, or coated and impregnated in the roll of material 210 are eluted to the vapor.
  • the roll of material 210 may include a plurality of layers 220 of rolled material in accordance with the claims.
  • the layers 220 of the roll of material 210 may include spaces 222 between each adjacent layer 220, such that the vapor passes through the central opening 216, through the channels 222 between the layers 220, or both.
  • FIG. 4 is a top view of a sheet of material that forms a roll of material according to at least one example embodiment.
  • the roll of material 210 is formed from a sheet of material 260 that is rollable by an adult vaper.
  • the sheet of material 260 includes at least one of a polymeric film, paper, and a film of reconstituted tobacco material.
  • the sheet of material 260 may be impregnated with at least one material including at least one additive.
  • the sheet of material 260 comprises a polymeric film.
  • the film may be a water soluble film that dissolves when in contact with moisture, heat from the vapor, or both. Therefore, over time, the film may dissolve as the film releases additives during vaping, may be replaced by another film if desired, or both.
  • the film may be a film of microcrystalline cellulose, hydroxypropylmethylcellulose, pullulan, chitosan, cellulose derivatives, alginate, pectin, or combinations thereof, including additives dispersed therethrough.
  • the sheet of material 260 has a length ranging from about 10 millimetres to about 50 millimetres and a width ranging from about 10 millimetres to about 50 millimetres.
  • the sheet of material 260 may be sized such that when rolled, the roll of material fits between the gasket 10 and the mouth-end insert 8.
  • FIG. 5 is a cross-sectional view along line V-V of the material of FIG. 4 .
  • the sheet of material 260 may include a coating 232 in lieu of or in addition to the impregnated additives.
  • the coating 232 may include the same or different additives than the impregnated additives.
  • the coating 232 may include pieces of tobacco material adhered to the sheet of material 260 with food-grade binders, adhesives, or both.
  • the sheet of material 260 may be formed of reconstituted tobacco material that is impregnated with flavorants, other additives, or both.
  • the sheet of material 260 has a thickness of up to about 150 microns.
  • the coating 232 may also have a thickness of up to about 150 microns.
  • the coating 232 may be on at least one surface of the sheet of material 260.
  • FIG. 6 is a cross-sectional view of a flavor capsule impregnated in, coated on, or impregnated in and coated on a sheet of material according to at least one example embodiment.
  • the additives may be encapsulated.
  • the encapsulated additives may include a first outer shell 320 and an inner core 310.
  • Encapsulated additives embedded in the material may refer to different types of encapsulation including: 1) a matrix-type of encapsulation in which the flavor is dispersed within an encapsulation matric, 2) a core/shell-type encapsulation in which the flavor is contained within a core surrounded by an encapsulant material, and 3) an adsorbent material in which the flavor has been adsorbed onto, into, or both, (that is, silica gel, activated carbon, molecular sieves, and so forth).
  • the encapsulated additives may be available in different forms such as powders, spherical particles or other geometries, needle-like or fiber-like structure, and so forth.
  • FIG. 7 is a cross-sectional view of a flavor capsule impregnated in, coated on, or impregnated in and coated on a sheet of material according to at least one example embodiment.
  • the additives may be encapsulated, and the capsules may include the first outer shell 320, a second outer shell 330, and the inner core 310.
  • the encapsulated additives may be formed to release the additive in response to one or more of heat from the vapor, moisture from the vapor, or both.
  • the first outer shell 320, the second outer shell, or both may be formed of water soluble materials having varying levels of water solubility so as to provide controlled release of the additive over a desired period of time.
  • the first outer shell 320, the second outer shell 330, or both may include one or more of gelatin, pectin, and sodium alginate.
  • the polymers may be cross-linked with a cross-linking agent, such as calcium salts including calcium acetate, calcium chloride, and the like.
  • the first outer shell 320, the second outer shell 330, or both may have varying thicknesses so as to release the additives at different times.
  • the encapsulated additives have similar shells so as to release the additives from the inner core 310 at the same time. Therefore, the shells 320, 330 may be formed of substantially the same materials and have substantially the same thicknesses.
  • FIG. 8 is a cross-sectional view of a flavor capsule in the form of an encapsulated matrix 330.
  • Flavor particles 340 may be dispersed uniformly or non-uniformly in a matrix 335 of a food-grade polymer.
  • FIG. 9A is a perspective view of a kit including a plurality of sheets of material according to at least one example embodiment.
  • a kit 500 may include a plurality of sheets of material 260 as described above.
  • the kit 500 may include a plurality of the same types of sheets of material 260 or the kit 500 may include different types of sheets of material 260.
  • the sheets of material 260 may be packaged in a hinged-lid pack 600 or other suitable packaging.
  • the sheets of material 260 may be individually wrapped or wrapped according to type of additives included therein to avoid or reduce loss of volatile additives, cross-contamination, or both.
  • each type may be a different color and the color may indicate the type of additive, flavor, or both, included in that sheet of material 260.
  • the kit 500 may include a roller 610 that squeezes, scratches, or squeezes and scratches a surface of the sheets of material 260 prior to rolling so as to mechanically release encapsulated flavors.
  • the kit 500 may include an inflexible guide 620.
  • the guide 620 may be formed of metal or plastic.
  • the guide 620 may be used to assure the resulting rolled material maintains open through-channels and is consistently rolled from one sheet or material to the next.
  • the sheets may be available pre-rolled with the guide 620 or without the guide 620. In a pre-rolled configuration, the mouth-end insert may be pre-attached for convenience and hygiene.
  • a method of enhancing a vapor of an electronic vaping device may include rolling a sheet of material 700 to form a rolled sheet of material and inserting the rolled sheet of material between a heater and a mouth end of a cartridge 710. The method may also include removing the mouth-end insert prior to inserting the rolled sheet of material.
  • an adult vaper may choose to roll two or more sheets of material 260 together to provide multiple different additives.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacture Of Tobacco Products (AREA)
  • Laminated Bodies (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
EP17715482.0A 2016-04-04 2017-04-04 Electronic vaping device Active EP3439492B1 (en)

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US15/089,777 US20170280769A1 (en) 2016-04-04 2016-04-04 Electronic vaping device and kit
PCT/EP2017/058016 WO2017174595A1 (en) 2016-04-04 2017-04-04 Electronic vaping device and kit

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Also Published As

Publication number Publication date
EP3439492C0 (en) 2024-04-03
KR20180124910A (ko) 2018-11-21
RU2018134944A3 (ko) 2020-05-25
RU2018134944A (ru) 2020-05-12
EP3439492A1 (en) 2019-02-13
MX2018011462A (es) 2019-01-10
WO2017174595A1 (en) 2017-10-12
RU2728073C2 (ru) 2020-07-28
CN108778007A (zh) 2018-11-09
CA3014147A1 (en) 2017-10-12
US20170280769A1 (en) 2017-10-05
JP2019513374A (ja) 2019-05-30
IL261720A (en) 2018-10-31
KR102492952B1 (ko) 2023-01-30

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