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WO2025056558A1 - Système de fourniture d'aérosol - Google Patents

Système de fourniture d'aérosol Download PDF

Info

Publication number
WO2025056558A1
WO2025056558A1 PCT/EP2024/075273 EP2024075273W WO2025056558A1 WO 2025056558 A1 WO2025056558 A1 WO 2025056558A1 EP 2024075273 W EP2024075273 W EP 2024075273W WO 2025056558 A1 WO2025056558 A1 WO 2025056558A1
Authority
WO
WIPO (PCT)
Prior art keywords
article
aerosol
aerosol provision
flow path
resistive heating
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.)
Pending
Application number
PCT/EP2024/075273
Other languages
English (en)
Inventor
Mark Potter
Steven Schennum
Daniel Rennecker
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.)
Nicoventures Trading Ltd
Original Assignee
Nicoventures Trading Ltd
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 Nicoventures Trading Ltd filed Critical Nicoventures Trading Ltd
Publication of WO2025056558A1 publication Critical patent/WO2025056558A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • A24F40/46—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
    • 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
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/20—Cigarettes specially adapted for simulated smoking devices
    • 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
    • A24F40/20—Devices using solid 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
    • A24F40/70—Manufacture

Definitions

  • the present invention relates to an aerosol provision system.
  • the present invention also relates to an aerosol provision device, and an article for an aerosol provision device.
  • Smoking articles such as cigarettes, cigars and the like burn tobacco during use to create tobacco smoke. Attempts have been made to provide alternatives to these articles by creating products that release compounds without combusting. Examples of such products are so-called “heat not burn” products or tobacco heating devices or products, which release compounds by heating, but not burning, material.
  • the material may be, for example, tobacco or other non-tobacco products, which may or may not contain nicotine.
  • Aerosol provision systems which cover the aforementioned devices or products, are known.
  • Common systems use heaters to create an aerosol from a suitable medium which is then inhaled by a user. Often the medium used needs to be replaced or changed to provide a different aerosol for inhalation. It is known to use resistive heating systems as heaters to create an aerosol from a suitable medium.
  • an aerosol provision system comprising: an article which comprises: an aerosol generating material; a heating arrangement arranged to heat the aerosol generating material; and an article air flow path extending through the article, wherein the article air flow path comprises an article air inlet through which air enters the article; wherein the aerosol provision system further comprises: an aerosol provision device comprising: an article receiving portion shaped to receive the article; and a device air flow path extending through the aerosol provision device between an exterior of the aerosol provision device and the article receiving portion, wherein the device air flow path comprises a device air outlet; wherein the device air outlet is configured to mate with the article air inlet to connect the device air flow path with the article air flow path, wherein one of the article air inlet and device air outlet is in the form of a protruding element and the other of the article air inlet and device air outlet is in the form of a receiving element configured to receive the protruding element when the article is inserted into the article receiving portion.
  • an aerosol provision device comprising: an article receiving portion shaped to receive, in use, an article which comprises: an aerosol generating material; a heating arrangement arranged to heat the aerosol generating material; and an article air flow path extending through the article, wherein the article air flow path comprises an article air inlet through which air enters the article; and a device air flow path extending through the aerosol provision device between an exterior of the aerosol provision device and the article receiving portion, wherein the device air flow path comprises a device air outlet; wherein the device air outlet is configured to mate with the article air inlet to connect the device air flow path with the article air flow path, wherein either the device air outlet is in the form of a protruding element and is configured to be received by the article air inlet, or the device air outlet is in the form of a receiving element and is configured to receive the article air inlet.
  • an article for use with an aerosol provision device comprising: an aerosol generating material; a heating arrangement arranged to heat the aerosol generating material; and an article air flow path extending through the article, wherein the article air flow path comprises an article air inlet through which air enters the article; wherein the article is configured to be received, in use, in an article receiving portion of an aerosol provision device having a device air flow path extending through the aerosol provision device between an exterior of the aerosol provision device and the article receiving portion, wherein the device air flow path comprises a device air outlet; wherein the article air inlet is configured to mate with the device air outlet to connect the device air flow path with the article air flow path, wherein either the article air inlet is in the form of a protruding element and is configured to be received by the device air outlet, or the article air inlet is in the form of a receiving element and is configured to receive the device air outlet.
  • the protruding element may have any suitable shape and may be defined by an outer wall which defines a hollow core through which air can pass.
  • the receiving element may have any suitable shape and may be defined by an inner wall which defines a hollow core through which air can pass, and into which the protruding element can be at least partially received.
  • the device air outlet may be in the form of the protruding element.
  • the article air inlet may be in the form of the receiving element.
  • the protruding element may extend within the article receiving portion.
  • the protruding element may extend from a base of the article receiving portion.
  • the article air flow path may be arranged to allow air to pass over the aerosol generating material.
  • the air flow path may comprise an article outlet through which air escapes the article.
  • the protruding element and receiving element may have a substantially rectangular cross section in a plane perpendicular to the direction of air flow therethrough.
  • the protruding element and receiving element may have a substantially circular cross section in a plane perpendicular to the direction of air flow therethrough.
  • the protruding element and receiving element may have a substantially elliptical cross section in a plane perpendicular to the direction of air flow therethrough.
  • the protruding element may have a tip which first passes into the receiving element and a base, and an outer dimension of the protruding element may increase along at least a portion of the length of the protruding element between the tip and the base.
  • the protruding element may be considered to be wedge shaped.
  • the receiving element may have a first end into which the protruding element first passes, and a second end.
  • An inner dimension of the receiving element may decrease along at least a portion of the length of the receiving element between the first end and the second end.
  • the protruding element and/or receiving element may be rigid, e.g. formed from a rigid polymer, paper or card-based material. At least one of the protruding element or receiving element may be rigid.
  • the article air inlet may be biased to form a (e.g. airtight) seal with the device air outlet.
  • the device air outlet may be biased to form a seal with the article air inlet.
  • the seal may be a substantially airtight seal, e.g. such that at least 60%, e.g. at least 70%, e.g. at least 80%, e.g. at least 90%, or e.g. 100% of the airflow through the device air outlet may pass into the article air inlet and into the article.
  • the aerosol provision device may comprise one or more biasing elements configured to bias the article air inlet, when the article is received within the article receiving portion, to form a(e.g. airtight) seal with the device air outlet.
  • the aerosol provision device may comprise one or more biasing elements configured to bias the device air outlet, when the article is received within the article receiving portion, to form a (e.g airtight) seal with the article air inlet.
  • the one or more biasing elements may comprise a plurality of biasing elements, and one or more of the plurality of biasing elements may be arranged to act on a first side of the article and one or more of the plurality of biasing elements may be arranged to act on a second, opposite, side of the article.
  • the one or more biasing elements may comprise a spring, e.g. a coil or leaf spring.
  • the one or more biasing elements may comprise resiliently biased (e.g. sprung) piston connectors.
  • at least one of the biasing elements comprises a leaf spring and wherein the leaf spring comprises an angled portion which engages the article as it is inserted into the article receiving portion, wherein the article is inserted along a receiving axis, and wherein an angle between the receiving axis and the angled portion is no more than 45°, e.g no more than 35°, e.g. no more than 30°.
  • the heating arrangement may comprise at least one resistive heating element and a plurality of article electrical contacts for providing an electrical connection to the at least one resistive heating element.
  • the heating arrangement may be considered to be a resistive heating arrangement.
  • the at least one resistive heating element may comprise a plurality of resistive heating elements.
  • the one or more biasing elements may comprise device electrical contacts configured to engage with the article electrical contacts. The device electrical contacts may together form an electrical connector on the device.
  • the article air inlet may be in the form of the protruding element and the device air outlet may be in the form of the receiving element.
  • the article may be formed from a plurality of sub-layers, and the sub-layers may at least partially define the article air flow path.
  • the sub-layers may at least partially define the article air inlet.
  • Each sub-layer may be substantially planar.
  • At least two of the sub-layers may comprise a paper-based material.
  • the aerosol generating material may comprise an aerosol generating layer.
  • the plurality of article electrical contacts may comprise a plurality of heater electrical contacts providing an electrical connection to the at least one heating element.
  • the heating arrangement may comprise an electrically conductive layer formed into the one or more heating elements.
  • At least a portion of the electrically conductive layer may form a resistive heating element configured to heat at least a portion of the aerosol generating material to generate an aerosol.
  • the heating arrangement may comprise one or more heating elements which are configured to resistively heat at least a portion of the aerosol generating material to generate an aerosol.
  • the electrically conductive layer may further comprise electrical tracks extending from the heating element.
  • the electrical tracks may extend to or provide the article (e.g. heater) electrical contacts.
  • the plurality of article electrical contacts comprises a first type of electrical contact and a second type of electrical contact.
  • an exterior of the article has a length, a width perpendicular to the length, and a depth perpendicular to each of the length and the width, wherein the length is greater than or equal to the width, and wherein the width is greater than the depth.
  • the aerosol generating material comprises an aerosol generating layer.
  • the heating arrangement and aerosol generating material together form an aerosol generator.
  • the heating arrangement comprises a resistive heating layer.
  • the aerosol generator comprises a support configured to support the resistive heating layer.
  • the support comprises a support layer.
  • the support is electrically insulative. In an embodiment of any of the above, the support comprises at least one of paper and card.
  • the aerosol generating material is in direct contact with the resistive heating layer. In an embodiment of any of the above, the aerosol generating layer is in direct contact with the resistive heating layer.
  • the aerosol generating material is in indirect contact with the resistive heating layer. In an embodiment of any of the above, the aerosol generating layer is in indirect contact with the resistive heating layer.
  • the resistive heating layer and the support layer define a substrate.
  • the aerosol generator comprises a laminate comprising the resistive heating layer and the support layer.
  • the laminate comprises the aerosol generating material.
  • the laminate comprises the aerosol generating layer.
  • the support layer comprises a card layer.
  • the first type of electrical contact is configured to electrically connect with a device electrical connector and the second type of electrical contact is configured to electrically connect with the device electrical connector.
  • the support defines an exposed contact area of the first type of electrical contact.
  • the exposed contact area is a first exposed contact area
  • the support defines a second exposed contact area of the second type of electrical contact.
  • the aerosol generating material is a continuous aerosol generating material. In an embodiment of any of the above, the aerosol generating layer is a continuous aerosol generating layer.
  • the aerosol generating material is a discontinuous aerosol generating material. In an embodiment of any of the above, the aerosol generating layer is a discontinuous aerosol generating layer.
  • the aerosol generating material comprises a plurality of discrete aerosol generating portions. In an embodiment of any of the above, the aerosol generating layer comprises a plurality of discrete aerosol generating portions. In an embodiment of any of the above, the resistive heating element is one of a plurality of resistive heating elements.
  • one of the discrete aerosol generating portions is associated with a corresponding one of the plurality of resistive heating elements.
  • the aerosol generating layer comprises at least one of dots, strips and patches.
  • each resistive heating element providing an electrically conductive path for resistive heating of a portion of the aerosol generating material to generate an aerosol at the respective portion of the aerosol generating material.
  • each resistive heating element providing an electrically conductive path for resistive heating of a portion of the aerosol generating material to generate an aerosol at the respective portion of the aerosol generating layer.
  • the resistive heating layer forms an array of resistive heating elements comprising at least the first resistive heating element and the second resistive heating element.
  • each of the first type of electrical contact and the second type of electrical contact are configured to enable an electric current to be individually provided to each of the resistive heating elements.
  • the aerosol generating layer comprises a film or gel layer comprising the aerosol generating material.
  • the aerosol generator comprises a plurality of the first type of electrical contact, wherein each of the heating elements comprises a separate electrical contact of the first type.
  • the aerosol generator comprises a plurality of the second type of electrical contacts, wherein each of the resistive heating elements comprises a separate second type of electrical contact. In an embodiment of any of the above, wherein the aerosol generator comprises a single second type of electrical contact. In an embodiment of any of the above, wherein the single second type of electrical contact is shared between each of the resistive heating elements. In an embodiment of any of the above, wherein the resistive heating element is formed by at least one of: cutting said resistive heating layer; chemically etching said resistive heating layer; forming or pressing the resistive heating layer in the substrate; and printing said resistive heating layer. In an embodiment of any of the above, wherein the resistive heating layer is in the form of a foil.
  • Figure 1 is a schematic perspective view of an aerosol provision system
  • Figure 2 is a schematic perspective view of an article comprising aerosol generating material of the aerosol provision system of Figure 1;
  • Figure 3 is a schematic perspective view of a first side of an aerosol generator of the article of Figure 2;
  • Figure 4 is a schematic perspective view of part of a second side of the aerosol generator of Figure 3;
  • Figure 5 is a schematic block diagram of an aerosol provision system such as the system shown in Figure 1;
  • Figure 6 is a schematic partially exploded perspective view of the article of Figure
  • Figure 7 is a schematic cross-sectional view of another aerosol generator such as the aerosol generator shown in Figure 3;
  • Figure 8 is a schematic plan view of a heating element of the aerosol generator of
  • Figure 9 is a schematic plan view of a resistive heating layer of the aerosol generator of Figure 3 with a plurality of heating elements;
  • Figure 10 is a flow chart showing a method of forming an aerosol generator, such as the aerosol generator of Figure 3;
  • Figure 11 is an exploded perspective view of an aerosol generator being formed
  • Figure 12 is a schematic perspective view of a resistive heating layer of an aerosol generator being formed
  • Figure 13 is a flow chart showing a method of forming an aerosol generator, such as the aerosol generator of Figure 3;
  • Figure 14 is a flow chart showing a method of forming an aerosol generator, such as the aerosol generator of Figure 3;
  • Figure 15 is a flow chart showing a method of forming an aerosol generator, such as the aerosol generator of Figure 3;
  • Figure 16 is a schematic perspective view of a resistive heating layer of an aerosol generator being formed
  • Figure 17 is a schematic plan view of a heating element of an aerosol generator
  • Figure 18 is a schematic plan view of a heating element of an aerosol generator
  • Figure 19 is a schematic perspective view of part of an aerosol generator of the article of Figure 2;
  • Figure 20 is a schematic perspective view of a device connector of an aerosol provision device of the aerosol provision system of Figure 1;
  • Figure 21 is a schematic side view of the aerosol generating system of Figure 1 ;
  • Figure 22 is a flow chart showing a method of forming an aerosol generator, such as the aerosol generator of Figure 3; and Figures 23 to 25 show an aerosol generator being formed;
  • Figure 26 shows a schematic, cross sectional view of an aerosol provision system
  • Figure 27 shows a perspective semi-transparent image of an aerosol provision system
  • Figure 28 is a perspective cut-through view of an aerosol provision system
  • Figure 29 shows a perspective view of the distal end of an article
  • Figure 30 shows a plan view of an aerosol provision system
  • Figure 31 is a perspective cut-through view of an aerosol provision system
  • Figure 32 is a perspective semi-transparent view of an aerosol provision system.
  • the term “delivery mechanism” is intended to encompass systems that deliver a substance to a user, and includes: non-combustible aerosol provision systems that release compounds from an aerosolisable material without combusting the aerosolisable material, such as electronic cigarettes, tobacco heating products, and hybrid systems to generate aerosol using a combination of aerosolisable materials; and articles comprising aerosolisable material and configured to be used in one of these non-combustible aerosol provision systems.
  • a “non-combustible” aerosol provision system is one where a constituent aerosol-generating material of the aerosol provision system (or component thereof) is not combusted or burned in order to facilitate delivery of at least one substance to a user.
  • the delivery system is a non-combustible aerosol provision system, such as a powered non-combustible aerosol provision system.
  • the non-combustible aerosol provision system is an electronic cigarette, also known as a vaping device or electronic nicotine delivery system (END), although it is noted that the presence of nicotine in the aerosol-generating material is not a requirement.
  • the non-combustible aerosol provision system is an aerosol-generating material heating system, also known as a heat-not-burn system. An example of such a system is a tobacco heating system.
  • the non-combustible aerosol provision system is a hybrid system to generate aerosol using a combination of aerosol-generating materials, one or a plurality of which may be heated.
  • Each of the aerosol-generating materials may be, for example, in the form of a solid, liquid or gel and may or may not contain nicotine.
  • the hybrid system comprises a liquid or gel aerosol-generating material and a solid aerosol-generating material.
  • the solid aerosol-generating material may comprise, for example, tobacco or a non-tobacco product.
  • the non-combustible aerosol provision system may comprise a non- combustible aerosol provision device and a consumable for use with the non- combustible aerosol provision device.
  • the disclosure relates to consumables comprising aerosolgenerating material and configured to be used with non-combustible aerosol provision devices. These consumables are sometimes referred to as articles throughout the disclosure.
  • the non-combustible aerosol provision system such as a non-combustible aerosol provision device thereof, may comprise a power source and a controller.
  • the power source may, for example, be an electric power source.
  • the non-combustible aerosol provision system may comprise an area for receiving the consumable, an aerosol generator, an aerosol generation area, a housing, a mouthpiece, a filter and/or an aerosol-modifying agent.
  • the consumable for use with the non-combustible aerosol provision device may comprise aerosol-generating material, an aerosol-generating material storage area, an aerosol-generating material transfer component, an aerosol generator, an aerosol generation area, a housing, a wrapper, a filter, a mouthpiece, and/or an aerosol-modifying agent.
  • aerosol-generating material (which is sometimes referred to herein as an aerosolisable material) is a material that is capable of generating aerosol, for example when heated, irradiated or energized in any other way. Aerosol-generating material may, for example, be in the form of a solid, liquid or semi-solid (such as a gel) which may or may not contain an active substance and/or flavourants.
  • the substance to be delivered comprises an active substance (sometimes referred to herein as an active compound).
  • the aerosol-generating material may comprise one or more active substances and/or flavours, one or more aerosol-former materials, and optionally one or more other functional material.
  • the aerosol-generating material may comprise a binder, such as a gelling agent, and an aerosol former.
  • a substance to be delivered and/or filler may also be present.
  • a solvent such as water, is also present and one or more other components of the aerosol-generating material may or may not be soluble in the solvent.
  • the aerosol-generating material is substantially free from botanical material.
  • the aerosol-generating material is substantially tobacco free.
  • the aerosol-generating material may comprise or be in the form of an aerosolgenerating film.
  • the aerosol-generating film may comprise a binder, such as a gelling agent, and an aerosol former.
  • a substance to be delivered and/or filler may also be present.
  • the aerosol-generating film may be substantially free from botanical material.
  • the aerosol-generating material is substantially tobacco free.
  • the aerosol-generating film may have a thickness of about 0.015 mm to about 1 mm.
  • the thickness may be in the range of about 0.05 mm, 0.1 mm or 0.15 mm to about 0.5 mm or 0.3 mm.
  • the aerosol-generating film may be continuous.
  • the film may comprise or be a continuous sheet of material.
  • the aerosol-generating film may be discontinuous.
  • the aerosolgenerating film may comprise one or more discrete portions or regions of aerosol- generating material, such as dots, stripes or lines, which may be supported on a support.
  • the support may be planar or non-planar.
  • the aerosol-generating material comprises a plurality of aerosolgenerating films.
  • the aerosol-generating film comprises a plurality of aerosol-generating film regions.
  • Such plurality of aerosol-generating films and/or plurality of aerosol-generating film regions may have different properties, for example at least one of different compositions, thicknesses, density, active substances and/or flavours, one or more aerosol-former materials, and optionally one or more other functional material.
  • the aerosol-generating film may be formed by combining a binder, such as a gelling agent, with a solvent, such as water, an aerosol-former and one or more other components, such as one or more substances to be delivered, to form a slurry and then heating the slurry to volatilise at least some of the solvent to form the aerosol-generating film.
  • a binder such as a gelling agent
  • a solvent such as water
  • an aerosol-former such as one or more other components, such as one or more substances to be delivered
  • the slurry may be heated to remove at least about 60 wt%, 70 wt%, 80 wt%, 85 wt% or 90 wt% of the solvent.
  • the aerosol-generating material may be an “amorphous solid”. In some embodiments, the amorphous solid is a “monolithic solid”.
  • the aerosol-generating material may be non-fibrous or fibrous. In some embodiments, the aerosol-generating material may be a dried gel.
  • the aerosol-generating material may be a solid material that may retain some fluid, such as liquid, within it. In some embodiments the retained fluid may be water (such as water absorbed from the surroundings of the aerosolgenerating material) or the retained fluid may be solvent (such as when the aerosolgenerating material is formed from a slurry).
  • the solvent may be water.
  • the aerosol-former material may comprise one or more constituents capable of forming an aerosol.
  • the aerosol-former material may comprise one or more of glycerine, glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, meso-Erythritol, ethyl vanillate, ethyl laurate, a diethyl suberate, triethyl citrate, triacetin, a diacetin mixture, benzyl benzoate, benzyl phenyl acetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate.
  • the one or more other functional materials may comprise one or more of pH regulators, colouring agents, preservatives, binders, fillers, stabilizers, and/or antioxidants.
  • the material may be present on or in a support, to form a substrate.
  • the support may, for example, be or comprise paper, card, paperboard, cardboard, reconstituted material, a plastics material, a ceramic material, a composite material, glass, a metal, or a metal alloy.
  • An aerosol provision device can receive an article comprising aerosol generating material for heating.
  • An “article” in this context is a component that includes or contains in use the aerosol generating material, which is heated to volatilise the aerosol generating material, and optionally other components in use.
  • a user may insert the article into or onto the aerosol provision device before it is heated to produce an aerosol, which the user subsequently inhales.
  • An aerosol generator is an apparatus configured to cause aerosol to be generated from the aerosol-generating material.
  • the aerosol generator is a heater configured to subject the aerosol-generating material to heat energy, so as to release one or more volatiles from the aerosol-generating material to form an aerosol.
  • a consumable is an article comprising or consisting of aerosol-generating material, part or all of which is intended to be consumed during use by a user.
  • a consumable may comprise one or more other components, such as an aerosolgenerating material storage area, an aerosol-generating material transfer component, an aerosol transfer component an aerosol generation area, a housing, a wrapper, a mouthpiece, a filter and/or an aerosol-modifying agent.
  • a consumable may also comprise an aerosol generator, such as a heater, that emits heat to cause the aerosolgenerating material to generate aerosol in use.
  • the heater may comprise a conductor which can be heated by the passage of an electrical current through the conductor.
  • Non-combustible aerosol provision systems may comprise a modular assembly including both a reusable aerosol provision device and a replaceable aerosol generating article.
  • the non-combustible aerosol provision device may comprise a power source and a controller (or control circuitry).
  • the power source may, for example, comprise an electric power source, such as a battery or rechargeable battery.
  • the non-combustible aerosol provision device may also comprise an aerosol generating component.
  • the aerosol generating article may comprise partially, or entirely, the aerosol generating component.
  • Figure 1 shows a schematic view of an aerosol provision system 100.
  • the aerosol provision system 100 comprises an aerosol provision device 200 and an article 300 comprising aerosol generating material 302 (refer to Figure 3).
  • the article 300 is shown in Figure 2 removed from the aerosol provision device 200.
  • An aerosol generator 304 of the article 300 is shown in Figure 3 with a perspective view of a first side 306, with a perspective view of part of a second side 307 shown in Figure 4.
  • the article 300 comprises the aerosol generator 304.
  • the aerosol generator 304 is configured to generate an aerosol from the aerosol generating material 302 upon operation of the aerosol provision system 100, as will be describe in detail below.
  • the aerosol provision system 100 may be elongate, extending along a longitudinal axis.
  • the aerosol provision system 100 has a proximal end 102, which will be closest to the user (e.g. the user’s mouth) when in use by the user to inhale the aerosol generated by the aerosol provision system 100, and a distal end 104 which will be furthest from the user when in use.
  • the proximal end may also be referred to as the “mouth end”.
  • the aerosol provision system 100 accordingly defines a proximal direction, which is directed towards the user when in use. Further, the aerosol provision system 100 likewise defines a distal direction, which is directed away from the user when in use.
  • proximal and distal as applied to features of the system 100 will be described by reference to the relative positioning of such features with respect to each other in a proximal-distal direction along a longitudinal axis.
  • the article 300 is received by the aerosol provision device 200.
  • the configuration of the article 300 and the aerosol provision device 200 may vary.
  • the aerosol provision device 200 comprises a device body 202.
  • the device has a housing 204 enclosing components of the device 200.
  • An article receiving portion 206 sometimes referred to as a device chamber, as shown in Figure 5, is configured to receive a portion of the article 300.
  • a proximal end 308 of the article protrudes from the device 200 when the article 300 is received in the device chamber 206.
  • a receptacle 208 defines the chamber 206.
  • the receptacle 208 comprises a receptacle base 210 and a receptacle peripheral wall 212.
  • the configuration of the receptacle 208 may vary in dependence on the configuration of the article 300.
  • One or more user-operable control elements 224 such as a button or switch, which can be used to operate the aerosol provision system 100 may be provided on the aerosol provision device 200. For example, a user may activate the system 100 by pressing the control element 224. The one or more user-operable control elements may be omitted. In embodiments, the aerosol provision system 100 is operated by another user action, for example puff activated by a user drawing air through the system.
  • the aerosol provision device 200 comprises an opening 214 at the proximal end, leading into the device chamber 206.
  • the opening 214 is provided in one end, through which the article 300 can be inserted.
  • the article 300 may be fully or partially inserted into the device 200.
  • the configuration of the device 200 may vary, for example the opening may be in a longitudinal side wall of the device 200, and/or may be closed by another feature of the device 200 during use.
  • the article 300 defines a mouthpiece 310 at the proximal end 308.
  • the device 200 defines the mouthpiece. The user places their mouth over the mouthpiece during use.
  • the device 200 defines the longitudinal axis along which an article 300 may extend when inserted into the device 200.
  • the opening 214 is aligned on the longitudinal axis.
  • the longitudinal axis may be an axis along which the article 300 is inserted into the device 200.
  • the longitudinal axis may be considered to be a receiving axis of the device 200.
  • the article 300 may similarly have a longitudinal axis along which it is inserted into the device and this axis may be considered to be an insertion axis.
  • the aerosol provision device 200 comprises a power source 220.
  • the power source 220 may be a battery, for example a rechargeable battery.
  • the device 200 also comprises a control circuit 222, acting as a controller, comprising a processor and a memory.
  • a heating system 110 is configured to heat the aerosol generating material 302 of an article 300.
  • the article 300 in embodiments is a consumable, and is interchangeable with other articles 300.
  • the heating system 110 comprises the aerosol generator 304.
  • the heating system 110 comprises other components of the aerosol provision system 100 including components of the article 300 and the aerosol provision device 200, for example the power source 220 and the control circuit 222.
  • the aerosol generator 304 forms part of the article 300.
  • 304 comprises a heating arrangement 312 configured to heat aerosol generating material 302, for example at least one of a film and a gel to generate an aerosol.
  • the aerosol generating material may be referred to as aerosolisable material.
  • the heating arrangement 312 is a resistive heating arrangement.
  • the or each heating element in embodiments is a resistive heating element, as described in detail below.
  • the heating system 110 comprises a resistive heating generator including components to heat the heating arrangement 312 via a resistive heating process.
  • an electrical current is directly applied to a resistive heating element, and the resulting flow of current in the heating element, acting as a heating component, causes the heating element to be heated by Joule heating.
  • the resistive heating element comprises resistive material configured to generate heat when a suitable electrical current passes through it, and the heating arrangement 312 comprises electrical contacts for supplying electrical current to the resistive material.
  • the provision of a resistive heating arrangement 312 allows for a compact arrangement. Resistive heating provides an efficient configuration.
  • air is drawn into an air inlet 314 of the article 300, as indicated by arrow 316.
  • the air inlet 314 is in a distal end of the article 300.
  • the air inlet 314 may have a different configuration, for example in the side.
  • the air flow to the air inlet 314 of the article 300 may be defined, for example by at least one of an air path through the device 200, an air path external to the device 200, and an air path between the device 200 and the article 300.
  • An aerosol generated by the aerosol generator 304 exits the device at an aerosol outlet 318, as indicated by arrow 319.
  • the aerosol outlet 318 is in the mouthpiece of the article 300, such that the aerosol is drawn directly from the article 300 into the mouth of a user of the system 100.
  • the aerosol provision system comprises two main components, namely a control section forming a reusable part and a consumable section forming a replaceable or disposable part which may be referred to as a replaceable or disposable article or cartridge.
  • the aerosol provision device 200 forms a control section and the article 300 forms the consumable section.
  • the control section and the consumable part may be releasably connected at an interface.
  • the consumable part may be removable and replaceable, for example when the consumable part is used, with the control section being re-used with a different consumable part.
  • the aerosol provision system 100 as shown is provided by way of example only and is highly schematic. Different aerosol generating devices and other devices may be used in example implementations of the principles described here. For example, in some example embodiments, air is drawn into an air inlet in the control section, passes through the interface, and exits the consumable part.
  • the article 300 has an article electrical contact configuration 320.
  • the electrical contact configuration 320 in embodiments is formed by the aerosol generator 304.
  • the electrical contact configuration 320 comprises heater electrical contacts 322.
  • the heater electrical contacts 322 may also be known as heater or article contacts.
  • the aerosol provision device 200 comprises an electrical connector 230.
  • the electrical connector 230 comprises connector electrical contacts 232.
  • the connector electrical contacts 232 may also be known as connector or device contacts.
  • the article electrical contact configuration 320 is configured to electrically communicate with the device electrical connector 230.
  • the configuration of the article 300 may vary.
  • the article 300 comprises a body
  • the body 324 is hollow.
  • the body 324 defines a flow path 326 (refer to Figure 6) through the article 300.
  • the flow path 326 extends between the air inlet 314 and the aerosol outlet 318.
  • the flow path 326 is defined by an internal space in the article along which air and/or aerosol can flow.
  • the flow path 326 is defined in the body 324.
  • the or each aerosol generator 304 bounds the flow path 326.
  • the aerosol generating material 302 is exposed to the flow path 326.
  • the aerosol generating material 302 is exposed in the internal space.
  • the internal space in embodiments comprises two or more chambers.
  • the air inlet 314 comprises an opening 315.
  • the opening 315 is formed in the body 324.
  • the opening is formed in another component of the article 300, for example the aerosol generator 304 or another wall feature.
  • the article 300 comprises two aerosol generators 304 forming an aerosol generator arrangement. The number of aerosol generators 304 may differ. Each aerosol generator 304 comprises aerosol generating material 302. The aerosol generating material 302 is exposed to the flow path 326. In embodiments the article 300 comprises a single aerosol generator 304. One of the aerosol generators 304 will be described in detail, with such detail being applicable to one or more further aerosol generators 304 in embodiments.
  • the or each aerosol generator 304 and the body 324 are formed in a stacked configuration.
  • other arrangements such as a tubular arrangement of the article are envisaged.
  • the aerosol generator 304 defines a tubular configuration.
  • Tubular may include circular cross-sectional, an elliptical cross section and other polygonal shapes.
  • the article 300 has a flat configuration. That is, wherein an exterior of the article has a length, a width perpendicular to the length, and a depth perpendicular to each of the length and the width, wherein the length is greater than or equal to the width, and wherein the width is greater than the depth.
  • Other configurations are envisaged.
  • Figure 6 is a partially exploded perspective view of the article 300, with an aerosol generator 304 shown inverted from an assembled orientation and in a spaced relationship with other components.
  • the article 300 comprises a first one of the aerosol generator 302, the body 324 and a second one of the aerosol generator.
  • the body 324 spaces the first and second aerosol generators 304.
  • the first and second aerosol generators 304 close the internal space defined by the body 324 along which air and/or aerosol can flow.
  • the aerosol generating material 302 of the first and second aerosol generators 304 face each other and is exposed to the internal space. When assembled, the first and second aerosol generators 304 sandwich the body 324.
  • the first and second aerosol generators 304 and the body have equal plan areas. In embodiments, one or more of the first and second aerosol generators 304 and the body 324 has a greater length and/or width. In embodiments, one of the first and second aerosol generators 304 is replaced by a blank panel.
  • the body 324 comprises a body layer.
  • the body may comprise a plurality of body layers. The body layers may be formed in a stack and arranged to define features of the article 300, such as the air inlet 314 and aerosol outlet 318.
  • a wrap encircles the article 300 and forms part of the article 300.
  • the wrap may comprise a sheet. The wrap acts as a fixed sleeve.
  • each aerosol generator 304 protrudes from the wrap at a distal end. Exposed electrical contact regions 323 of the heater contacts 322 are exposed at the distal end, for example refer to Figure 2. Other configurations are envisaged, for example at least one exposed electrical contact region 323 may additionally or alternatively be defined along a minor longitudinal face or edge of the article 300, and on a major face of the article defined by the aerosol generator 304.
  • the aerosol generator 304 is schematically shown in cross section in Figure 7.
  • the aerosol generator 304 is an implementation of the aerosol generator 304 of the aerosol provision system 100 described above.
  • the aerosol generator 304 comprises an aerosol generating layer 330.
  • the aerosol generating layer is also known as an aerosolisable layer.
  • the aerosol generating layer 330 comprises the aerosol generating material 302.
  • the aerosol generator 304 comprises a resistive heating layer 340.
  • the resistive heating layer 340 in embodiments, is formed as an electrically conductive layer.
  • the aerosol generating layer 330 is on the resistive heating layer 340.
  • the aerosol generating layer 330 is in direct contact with the resistive heating layer 340.
  • the aerosol generating layer 330 is in indirect contact with the resistive heating layer 340.
  • the resistive heating layer 340 may in embodiments comprise a coating.
  • the resistive heating layer 340 comprises a plurality of resistive heating elements 342, for example as shown in Figures 8 and 9.
  • the or each resistive heating element 342 forms at least a portion of an electrically conductive path between a pair of the electrical contacts 322.
  • the or each resistive heating element 342 provides the electrically conductive path for resistive heating of at least of portion of the aerosol generating material 302 to generate an aerosol.
  • the aerosol generating material 302 is, in embodiments, in the form of a film or a gel.
  • the resistive heating layer 340 is formed as an electrically conductive layer. This layer in embodiments takes the form of at least one of a metal layer, such as an aluminium layer, or a non-metallic material, such as graphene.
  • the resistive heating layer 340 is in the form of a foil, for example an aluminium foil.
  • the aerosol generator 304 comprises a support 350.
  • the support 350 in embodiments comprise a paper or card material.
  • the support 350 provides structural support for the aerosol generator 304.
  • the resistive heating layer 340 is on the support 350.
  • the support 350 is configured as a support layer. As shown in Figure 7, in the aerosol generator 304, the resistive heating layer 340 is sandwiched between the support 350 and the aerosol generating layer 330.
  • the support 350 is electrically insulative.
  • the resistive heating layer 340 and the support layer 350 define a substrate 352.
  • the substrate 352 supports the aerosol generating layer 330.
  • the article 300 may comprise a laminate 354 comprising the resistive heating layer 340 and the support layer 350.
  • the laminate 354 comprises the aerosol generating layer 330.
  • the aerosol generating layer 330 may be formed as a contiguous configuration, or may be formed from discrete portions. The discrete portions may comprise one or more of dots, strips, spirals, or other shapes.
  • the aerosol generating layer 330 comprises an aerosolgenerating film. In embodiments, the aerosol generating layer 330 comprises a plurality of aerosol-generating films. In embodiments, the aerosol-generating film comprises a plurality of aerosol-generating film regions. Such plurality of aerosol-generating films and/or plurality of aerosol-generating film regions may have different properties, for example at least one of different compositions, thicknesses, density, active substances and/or flavours, one or more aerosol-former materials, and optionally one or more other functional material.
  • One or more of the aerosol generating layer 330, resistive heating layer 340 and the support layer 350 may comprise a further layer.
  • the support layer 350 may comprise a backing layer or an intermediate layer.
  • the support layer 350 in embodiments is omitted.
  • Figure 8 shows one of the resistive heating elements 342.
  • the resistive heating layer 340 comprises a plurality of resistive heating elements 342.
  • the resistive heating layer 340 comprises a single resistive heating element 342.
  • the plurality of heating elements 342 may be formed in an array 344 as shown in Figure 9. Other configurations are envisaged.
  • the resistive heating element 342 comprises a resistive heating path.
  • the resistive heating path is formed by an electrically conducting path.
  • the resistive heating path is non-straight.
  • the resistive heating path is convoluted.
  • the configuration of the resistive heating path may vary.
  • the electrical resistance of the heating element 342 may be dependent on the nature of the resistive heating path in the conductive layer, for example the length, width, thickness and arrangement of the path.
  • the resistive heating element 342 extends between a first type of electrical contact 360 and a second type of electrical contact 365.
  • the first type of electrical contact 360 is configured to provide a positive contact and the second type of electrical contact 365 is configured to provide a negative contact. Electrical current flows between the first type of electrical contact 360 and the second type of electrical contact 365 through the path.
  • the contact arrangement may be reversed.
  • the first and second types of electrical contacts 360, 365 are heater electrical contacts 322.
  • the first and second types of electrical contacts 360, 365 form at least part of the article electrical contact configuration 320.
  • the resistive heating layer 340 may comprise a first type of electrical track 361 extending from the resistive heating element 342.
  • the first type of electrical track 361 comprises the first type of electrical contact 360.
  • the electrical contact 360 of the first type is configured to electrically connect with the device electrical connector 230.
  • the first type of electrical contact 360 comprises a first type of exposed contact region 362.
  • the first type of exposed contact region 362 is exposed on the article for direct connection with the device electrical connector 230.
  • the resistive heating layer 340 may comprise a second type of electrical track
  • the second type of electrical track 366 comprises the second type of electrical contact 365.
  • the electrical contact 365 of the second type is configured to electrically connect with the device electrical connector 230.
  • the second type of electrical contact 365 comprises a second type of exposed contact region 367.
  • the second type of exposed contact region 367 is exposed on the article 300 for direct connection with the device electrical connector 230.
  • the conducting path of the resistive heating element 342 in embodiments is created by defining at least one electrical barrier 346 in the resistive heating layer 340.
  • the electrical barrier 346 is formed by cutting electrical barrier restrictions (i.e. electrically insulating portions), such as gaps, channels or slots into a sheet formed of electrically conductive material to form the resistive heating layer 340.
  • the electrically conductive element 342 is preformed to define the or each resistive heating element 342 and then applied to the support 350.
  • the resistive heating layer 340 is applied to the support 350, and the or each resistive heating element 342 then defined in the resistive heating layer 340.
  • the or each restive heating element 342 defining the resistive heating layer 340 may be a printed heater.
  • the at least one electrical barrier 346 defines the first and second types of electrical track 361 , 366.
  • the tracks of the or each resistive heating element 342 have a width in the region of 0.5mm to 1mm (two example prototypes have widths of 0.93mm and 0.72mm respectively) and gaps between the tracks of less than about 0.25mm (the same two example prototypes have gaps of 0.2mm and 0.05mm respectively).
  • the or each resistive heating element 342 may have overall dimensions of the order of 10mm x 10mm. Other dimensions are possible in other example embodiments. By forming the or each resistive heating element 342 of these dimensions from an aluminium foil of having a thickness of 0.006mm and an electrical resistivity of between 2 and 6 pOhm/cm, the resistance of the path has been calculated to be of the order of 1 Ohm. In one example embodiment, the resistance was measured at between 0.83 and 1.31 Ohms.
  • the resistive heating layer 340 may be formed into a plurality of resistive heating elements, indicated generally by the reference numerals 342a, 342b, 242c, 342d and 342e.
  • Each of the resistive heating elements 342a-342e extends from a respective one of the first type of electrical contact, indicated generally by the reference numerals 360a, 360b, 360c, 360d and 360e to a single second type of electrical contact 365.
  • the number of electrical contacts may vary.
  • each resistive heating element 342a-342e extends between a discrete first type of electrical contact and a common second type of electrical contact.
  • Each of the resistive heating element 342a-342e provides an electrically conductive path for resistive heating of a portion of the aerosol generating material 302 to generate an aerosol at the respective portion of the aerosol generator 304.
  • the separate first type 360a-360e of electrical contacts enable an electric current to be individually provided to each of the plurality of resistive heating elements 342a- 342e.
  • the heating of different zones of the aerosol generating layer 330 can be controlled.
  • an aerosol generator may be provided with five aerosol generating zones.
  • the resistive heating layer 340 allows each of those zones to be activated separately. Accordingly, for example, five puffs of aerosol may be generated from a single consumable incorporating a single aerosol generator 304, and ten puffs of aerosol may be generated from a single consumable incorporating two aerosol generators 304.
  • each resistive heating element 342a-342e comprises a corresponding one of the first type of electrical contact 360 and a corresponding one of the second type of electrical contact 365.
  • the first type of electrical contacts 360a-360e are arranged on a first edge 363 of the resistive heating layer 340 and the second type of electrical contact 365 is arranged on a second edge 368 of the resistive heating layer 340.
  • This may allow for convenient connection of electrical power, but, of course, many other configurations are possible, some of which are discussed further below.
  • Figure 10 is a flow chart showing part of a method of forming an aerosol generator 304 or an algorithm, indicated generally by the reference numeral 400, in accordance with an example embodiment.
  • the method or algorithm 400 starts at operation 402, where a resistive heating layer is formed into one or more heating elements (e.g. a plurality of heating elements), wherein each resistive heating element extends from an electrical contact of a first type to an electrical contact of a second type.
  • the or each heating element may be used to provide an electrically conductive path for resistive heating of a portion of an aerosol generating material to generate an aerosol.
  • the formation of the or each resistive heating element may occur prior to or post application of the resistive heating layer on a support, where a support is present.
  • the resistive heating layer may be adhered to the support, or mounted or formed on the support in a different configuration.
  • the formed resistive heating layer is placed in contact with the aerosol generating layer, wherein said aerosol generating layer incorporates aerosol generating material.
  • Algorithm 400 may be used to produce the aerosol generator 304 described above.
  • Figure 11 shows the aerosol generator 304 being formed in accordance with an embodiment.
  • the aerosol generating material 302 is formed on the resistive heating layer 340 by depositing aerosol generating material, for example by spraying, painting, dispensing or in some other way.
  • the aerosol generating layer 330 is disposed on resistive heating layer 340 as indicated by the arrow 406, in an example implementation of the operation 404.
  • Figure 12 shows the resistive heating layer 340 being formed in accordance with an example embodiment.
  • the resistive heating layer 340 is in the process of being cut using a laser cutter 408.
  • the cutting of the resistive heating layer 340 can be used to form the paths of the heating elements described herein.
  • the use of the laser cutter 408 (or some other cutting process) is not the only method by which the resistive heating layer 340 described herein may be generated. Some example methods are described below.
  • Figure 13 is a flow chart showing part of a method of forming an aerosol generator 304 or an algorithm, indicated generally by the reference numeral 410.
  • the method or algorithm 410 starts at operation 412, where the resistive heating layer is provided.
  • operation 414 one or more of the resistive heating elements are formed in the resistive heating layer by chemically etching the resistive heating layer.
  • the operations 412 and 414 are an example implementation of the operation 402 of the method 400 described above.
  • the aerosol generating material is then disposed on the resistive heating layer, thereby implementing the operation 404 described above.
  • Figure 14 is a flow chart showing part of a method of forming an aerosol generator 304 or an algorithm, indicated generally by the reference numeral 418.
  • the method or algorithm 418 starts at operation 420, where one or more heating elements are formed, at least in part, by printing a resistive heating layer.
  • the operation 420 is therefore an example implementation of the operation 402 of the algorithm 400 described above.
  • the aerosol generating material is then disposed on the resistive heating layer, thereby implementing the operation 404 described above.
  • FIG. 15 is a flow chart showing method of operation or an algorithm, indicated generally by the reference numeral 424, in accordance with an example embodiment.
  • the method or algorithm 424 may, for example, be implemented using any of the aerosol generators described herein.
  • the method or algorithm 424 is initiated when an instruction to activate heating is received in an instance of operation 426.
  • a determination is made (in operation 428) regarding whether a heating element is available.
  • a plurality of heating elements may be provided.
  • the operation 428 may involve determination which of the heating elements have been used and/or the corresponding available aerosol generating material used up.
  • the algorithm moves to operation 430, where an available heating element is used.
  • heating elements may be individually controllable, for example by providing electrical power to individual heating elements.
  • the algorithm terminates at operation 432. If, at operation 428, a determination is made that no heating elements are available, for example because all heating elements have been used, then the algorithm terminates at operation 432. This may mean that a consumable part being used to implement the algorithm 424 needs to be replaced.
  • Figure 16 shows the resistive heating layer 340 being formed in accordance with an embodiment.
  • the resistive heating layer 340 is being cut using the laser cutter 408, although other methods could be used, such as chemical etching or printing, as discussed above.
  • the cutting of the electrically conductive layer 340 forms the heating elements as described herein.
  • the paths cut are linear paths, extending along the length of the electrically conductive layer 120.
  • FIG 17 shows another embodiment of the resistive heating layer 340.
  • the resistive heating layer 340 may be formed using the laser cutter 408 described above, or some similar device or another method.
  • the resistive heating layer 340 comprises a plurality of resistive heating elements 342, each resistive heating element 342 being a linear heating element comprising a conducting path extending along a length of the resistive heating layer 340.
  • Each resistive heating element 342 extends from one of the first type of electrical contact 360, for example a positive electrical connection to one of the second type of electrical contact 365, for example a negative electrical contact. In such an embodiment, both types of electrical contact are provided at the same end of the resistive heating layer 340 and are provided next to each other.
  • each heating element has separate first and second types of electrical contacts.
  • Figure 18 shows another embodiment of the resistive heating layer 340.
  • the resistive heating layer 340 may be formed using the laser cutter 408 described above, or some similar device or another method.
  • the resistive heating layer 340 comprises a plurality of heating elements 342, each heater element 342 being a linear heating element comprising a conducting path extending along a length of the resistive heating layer 340.
  • Each resistive heating element 342 extends from one of the first type of electrical contact 360, for example a positive electrical connection to the second type of electrical contact 365, for example a negative electrical contact.
  • the different types of electrical connection are provided at the opposite ends of the resistive heating layer 340 and a common second type of electrical contact is provided.
  • a linear path is provided, an increase in the electrical resistance may be provided by means of providing a crenelated path, acting as a convoluted path. Note that the paths of any other embodiments described herein could also be crenelated.
  • Figure 19 shows the distal end of the article 300.
  • the body 324 comprises a plurality of body layers 325.
  • the body layers 325 are arranged in a stack of body layers 325.
  • the body layers 325 form a laminate.
  • the body layers 325 in embodiments are card layers. Other suitable materials may be used.
  • the body layers 325 are configured to define features of the article 300.
  • At least one body layer in embodiments comprises a gap defining the air inlet 315.
  • the gap defines the opening 314.
  • the aerosol generator 304 comprises the resistive heating layer 340.
  • the resistive heating layer 340 comprises the resistive heating elements 342, the first type of electrical contacts 360, for example providing positive electrical connections to each of a plurality of heating elements 342 and a single second type of electrical contact 365, for example providing a common negative electrical connection to the plurality of heating elements 342.
  • the resistive heating elements 342 are on an inner side of the resistive heating layer 340.
  • the inner side defines the first side 306 of the aerosol generator 304 as shown in Figure 3.
  • the heater contacts 322 are on the second side 307 of the resistive heating layer 340.
  • the second side 307 defines an outer side of the aerosol generator 304.
  • the heater contacts 322 are exposed so that they are able to be brought into contact with the device electrical connector 230.
  • the heater contacts 322 are on an opposing side of the resistive heating layer 340 to the resistive heating elements 342. Other configurations are envisaged.
  • the support layer 350 is between an inner portion of the resistive heating layer 340 and an outer portion of the resistive heating layer 340.
  • a fold 370 is formed in the resistive heating layer 340.
  • the fold 370 defines the heater contacts 322.
  • the fold 370 as shown in Figures 2 to 4 and 19 extends perpendicular to the longitudinal axis of the aerosol generator 304.
  • the fold 370 defines a flap 372.
  • the heater contacts 322 are on the flap 372.
  • the flap defines a contact panel. The remaining part of the blank defines a main panel.
  • the support layer 350 in embodiments is folded.
  • the substrate 352 is folded at the fold 370.
  • the support layer 350 ends at the fold.
  • the fold 370 extends parallel to the longitudinal axis of the aerosol generator 304.
  • the folded portion of resistive heating layer 340 is affixed in the folded position.
  • This folded portion in embodiments is adhered, for example by bonding. Other fixing means are anticipated.
  • the fold 370 defines the first type of exposed contact region 362.
  • the fold 370 defines the second type of exposed contact region 367.
  • the electrical tracks 361, 366 electrically communicate across the fold 370.
  • the heater contacts 322 of the first type of electrical track 361 and the second type of electrical track 366 are defined on the second side of the resistive heating layer 340. Portions of the first type of electrical track 361 and the second type of electrical track 366 extend on the first side of the resistive heating layer 340. In embodiments the resistive heating elements extend from the fold 370. Other configurations are anticipated.
  • the device 200 comprises a plurality of connector electrical contacts 232 of the electrical connector 230.
  • the configuration of the device connector 230 is dependent on the configuration of the heater contacts 322 of the aerosol generator 304.
  • the aerosol generator 300 comprises a plurality of heater contacts 322 including a plurality of the first type of heater contact 360 and one of the second type of heater contact 365.
  • the article 300 comprises another set of heater contacts 322 on the opposing side of the article 300 corresponding to the second aerosol generator 304.
  • Figure 20 shows a device connector 230 of the aerosol provision device 200 used in some embodiments.
  • the connector 230 has separate connector electrical contacts 232 for connection with the heater contacts 322.
  • FIG. 21 schematically shows the aerosol provision system 100.
  • the system 100 comprises the article 300 and aerosol provision device 200, both shown in block diagram.
  • the device 200 comprises first and second connectors 230a and 230b.
  • the connectors 230a and 230b enable the aerosol provision device 200 to provide regulated or controlled electrical voltages and/or currents to the various first and second type of heater contacts 360, 365 of the aerosol generator 304 when the article 300 is inserted into the aerosol provision device 200.
  • the aerosol provision device 200 may comprise a connector arrangement configured to provide electrical power to the connectors 230a, 230b.
  • the aerosol provision device 200 may, for example, operate the method as described above.
  • Figure 22 is a flow chart showing a method of forming an aerosol generator 304 or an algorithm, indicated generally by the reference numeral 440, in accordance with an example embodiment.
  • the method or algorithm 440 starts at operation 442, where a resistive heating layer is formed into at least one resistive heating element, the or each heating element providing an electrically conductive path for resistive heating of at least a portion of an aerosolisable material to generate an aerosol.
  • Example heating elements that may be formed in the operation 442 are described elsewhere in this document.
  • an aerosol generating material is applied and/or formed on the resistive heating layer.
  • the operations 442 and 444 of the method or algorithm 440 are similar to (and may be identical to) the operations 402 and 404 of the method or algorithm 400 described above.
  • At least one first type of electrical contact is provided on the resistive heating layer.
  • the method of formation may be any of the methods described above.
  • at least one second type of electrical contact is provided on the resistive heating layer.
  • the method of formation may be any of the methods described above.
  • the first and second types of electrical contact are formed along or proximal a single edge of the resistive heating layer.
  • the first and second types of electrical contact are formed along or proximal to different edges of the resistive heating layer.
  • the first types of electrical contact e.g. positive connection(s)
  • the second types of electrical contact e.g. negative electrical connection(s)
  • the resistive heating layer is folded.
  • the support layer is folded together with the resistive heating layer.
  • the resistive heating layer is folded such that electrical contacts of the first and second type are provided adjacent to one another, as discussed in detail below.
  • Figures 23 to 25 show an embodiment of the aerosol generator 304 being formed in accordance with the algorithm 440.
  • the resistive heating layer 340 is formed into a plurality of heating elements 192, although the number may differ and may be one.
  • a plurality of the first type of the electrical contact 360 e.g. positive electrical contact
  • a single second type of electrical contact 365 is provided along the second edge of the resistive heating layer 340. In embodiments the contacts are spaced from the edges.
  • each heating element of the plurality extends from an electrical contact of the first type to an electrical contact of the second type.
  • the cutting of the resistive heating layer 340 by the laser cutter 408 forms the paths of the or each heating element 342.
  • laser formation or some other cutting process is not the only method by which the resistive heating layer 340 described above may be generated.
  • Some example alternative methods include chemical etching and printing.
  • the aerosol generating layer 200 is provided on the resistive heating layer 340.
  • the blank is then folded, as indicated by the arrows in Figure 24.
  • the folds are formed parallel to a longitudinal direction of the aerosol generator 304.
  • Two folds are formed.
  • a first panel 375 is defined comprising the heating elements 342.
  • a second panel 376 is formed comprising the plurality of the first type of the electrical contact 360.
  • a third panel 377 is formed comprising the second type of electrical contact 365.
  • the aerosol generating layer 330 is on the first panel 375.
  • Figure 25 shows the folded aerosol generator 304.
  • Figure 26 shows a schematic, cross-sectional view of an aerosol provision system 100 comprising an aerosol provision device 200 and an article 300, in accordance with an embodiment of the present invention.
  • Figure 27 shows a perspective semi-transparent image of the aerosol provision system 100 depicted in Figure 26 with the article 300 inserted into the aerosol provision device 200.
  • the aerosol provision device 200 comprises an article receiving portion 206 which is shaped to receive the article 300.
  • the article receiving portion 206 is defined by the receptacle 208 which comprises a receptacle base 210 and a receptacle peripheral wall 212. It will be understood that the receptacle base 210 is the base of the article receiving portion 206.
  • the article 300 is inserted into the opening 214 of the receptacle 208, as illustrated in Figure 26.
  • the article receiving portion 206 may have any suitable shape depending on the shape of the article 300 with which it is intended for use.
  • the article receiving portion 206 and article 300 may have complimentary shapes.
  • the article 300 shown may comprise a heating arrangement 312 of any suitable form, e.g. in the form of the heating arrangement of any of the embodiments described above.
  • the article 300 may similarly comprise any of the features of the various articles 300 discussed above.
  • the aerosol provision device 200 comprises a device air outlet 503.
  • the device air outlet 503 is in the form of a protruding element.
  • the device 200 may also comprise a device air inlet 501 (see Figure 27), through which air enters the device 200.
  • a device air flow path 519 is defined, through the device 200, from an exterior of the device 200, through the device air inlet 501 , and out through device air outlet 503.
  • the device air outlet 503 may be defined by a protruding element 504 which protrudes from the base 210 of the article receiving portion 206.
  • the protruding element may be rigid (i.e. be made from a rigid material such as a rigid polymer).
  • the protruding element may have any suitable shape and may be defined by an outer wall which defines a hollow core through which air can pass.
  • the receiving element may have any suitable shape and may be defined by an inner wall which defines a hollow core through which air can pass, and into which the protruding element can be at least partially received.
  • the article 300 may comprise an article air inlet 314 which may be arranged at an end, e.g. a distal end, thereof.
  • the article 300 comprises an article air flow path 319 extending therethrough from the article inlet 314, through which air may enter the article 300.
  • the article air flow path may extend from the article air inlet 314 through a hollow core of the article 300 to an outlet 318 thereof.
  • the article inlet 314 is defined by a receiving element 315 (which may comprise an opening defined within the article 300).
  • the receiving element 315 may be shaped to receive the protruding element 504 and the protruding element 504 may be shaped to extend into the receiving element 315 such that air can flow from the device air outlet 503 into the article air inlet 314 when the article 300 is suitably received within the receiving portion 206.
  • the protruding element 504 may comprise a hollow core 509 through which air can flow.
  • the protruding element 504 may have any suitable shape and configuration.
  • the arrangement of a protruding element 504 being received within a receiving element 315 may be advantageous as it may provide an area of overlap between the receiving element 315 and the protruding element 504.
  • the area of overlap may correspond to an area of contact between the protruding element 504 and receiving element 315.
  • the potential area of contact between the device air outlet and article air inlet may be greater (due to the overlap).
  • This arrangement may also improve the reliability of the seal as the protruding element 504 may be guided into the receiving element 315.
  • the device 200 may comprise at least one biasing element 507, as shown in Figures 26 and 27.
  • the at least one biasing element 507 may comprise a plurality of biasing elements 507 and such a plurality of biasing elements 507 may be provided on both sides of the article receiving portion 206.
  • the biasing elements 507 may be arranged adjacent the base 210 of the article receiving portion 206.
  • the biasing elements 507 may act to urge the receiving element 315 against the protruding element 504. This may advantageously ensure that a tight seal is realised between the protruding element 504 and the receiving element 315 (and thus between the device outlet 503 and the article inlet 314).
  • FIG. 28 is a perspective cut-through view of the aerosol provision system 100, focussing on the connection between the device air outlet 503 and the article air inlet
  • the protruding element 504 (of the device air outlet 503) extends into the receiving element 315 (of the article air inlet 314) such that an air flow path is defined between the device outlet 503 and the article inlet 314.
  • Both the protruding element 504 and receiving element 315 may have a substantially rectangular cross section in a plane perpendicular to the direction of air flow therethrough. Further, in the illustrated embodiment, the protruding element 504 may have a tip 505, which first passes into the receiving element
  • the protruding element 504 may be shaped such that an outer dimension of the protruding element 504 increases along at least a portion of the length of the protruding element 504 between the tip 505 and the base 508. It is illustrated in Figure 28 that the dimension DB which is close to the base 508 of the protruding element 504 is greater than the dimension DT which is close to the tip of the protruding element 504. In such embodiments, the protruding element 504 may be considered to be substantially wedge shaped. Such a wedge shape may facilitate insertion of the protruding element 504 into the receiving element 315, and may also help to contribute to a tight (e.g.
  • the protruding element 504 When the protruding element 504 is fully inserted into the receiving element 315 (e.g. when the article 300 is fully inserted into the receiving portion 206), at least the base 508 of the protruding element 504 may bear against the receiving element 315.
  • the protruding element 504 may support the receiving element 315, and prevent the crushing thereof.
  • the protruding element 504 may be substantially rigid, and thereby be capable of preventing such crushing.
  • An additional advantage is that, since the receiving element 315 is supported by the protruding element 504, stronger biasing elements 507 can be used. The use of stronger biasing elements 507 may advantageously achieve an even tighter seal, and where the biasing elements 507 are in the form of connector contacts (discussed below), may also achieve a better and/or more reliable electrical connection with the article 300.
  • at least one of biasing elements are in the form of connector contacts
  • first side and second side may be considered to be any two parts of the rounded face of the article which are diametrically opposed. In acting on opposite sides of the article 300, this may help to ensure that the article 300 is held in a secure, level position within the article receiving portion 206. It may also act to improve the seal achieved between the device air outlet 503 and article air inlet 314. This may be contrasted to arrangements whereby the biasing element only acts on one side of the article 300 which may cause pivoting of the article 300 within the article receiving portion 206.
  • the biasing elements 507 may be any form of resiliently biased element which applies a force.
  • the biasing elements 507 may be in the form of sprung pistons comprising a spring 511 , e.g. a helical spring 511 , which acts to bias a piston 513 into the article receiving portion 206, e.g. towards the protruding element 504.
  • the pistons 513 may have rounded ends such that the article can slide past the pistons 513 more easily when the article 300 is being inserted/removed from the article receiving portion 206.
  • the aerosol generating material 302 within the article 300 can be seen in Figure 28. As shown in this Figure, the article air flow path 319 may pass over the aerosol generating material 302.
  • Figure 29 shows a perspective view of the distal end of the article 300 and the biasing elements 507 of the device 200.
  • the biasing elements 507 may also provide device electrical contacts (i.e. connector electrical contacts 232).
  • the biasing elements 507 (and thus the connector electrical contacts) are arranged to contact the article electrical contacts 322 on the article 300.
  • Such arrangements may be advantageous as the biasing elements 507 may be used to provide both an electrical connection and simultaneously improve the seal between the device 200 and the article 300. This may reduce the overall number of components required in the system.
  • the body 324 of the article 300 may comprise a plurality of body layers 325.
  • at least one body layer in comprises a gap defining the air inlet 314.
  • the gap may define the receiving element 315.
  • the protruding element 504 is received in the receiving element 315, the protruding element is sandwiched between the body layers which do not comprise a gap.
  • These body layers will be referred to as the non-gap layers 309.
  • FIG 30 shows a plan view of an aerosol provision system 100 according to another embodiment.
  • the aerosol provision system 100 comprises an aerosol provision device 200 which comprises an article receiving portion 206 which is shaped to receive the article 300.
  • the article receiving portion 206 is defined by the receptacle 208 which comprises a receptacle base 210 and a receptacle peripheral wall 212.
  • the receptacle base 210 is the base of the article receiving portion 206.
  • the device 200 comprises a device air inlet 502 and a device air outlet 503.
  • a device air flow path is defined, through the device 200, from an exterior of the device 200, through the device air inlet 501, and out of the device air outlet 503.
  • the device air outlet 503 may be defined by a receiving element 515 which is provided at the base 210 of the article receiving portion 206. The specific form of the receiving element is described in more detail below with reference to Figure 31.
  • the article 300 comprises an article air inlet 314.
  • the article 300 comprises an article air flow path extending therethrough from the article inlet 314 through which air may enter the article 300.
  • the article inlet 314 is defined by a protruding element 516 which protrudes from a distal end of the article 300.
  • the arrangement of a protruding element 516 being received within a receiving element 515 may be advantageous since it may introduce an area of overlap between the receiving element 515 and the protruding element 516 which may increase the area of contact between the device air outlet 504 and article air inlet 514.
  • the increased area of contact may improve the seal between the device air outlet 504 and the article air inlet 514.
  • This arrangement may also improve the reliability of the seal as the protruding element 516 may be guided into the receiving element 515.
  • the receiving element 515 on the device 200 and the protruding element 516 on the article 300 may have complementary shapes.
  • the receiving element 515 may be shaped to receive the protruding element 516 and the protruding element 516 may be shaped to extend into the receiving element 515 such that air can flow from the device air outlet 503 into the article air inlet 314, when the article 300 is inserted (e.g. fully inserted) into the receiving portion 206.
  • Figure 31 is a perspective cut-through view of an aerosol provision system 100 shown in Figure 30, focussing on the connection between the device air outlet 503 and the article inlet 314 when the article 300 is fully inserted into the receiving portion 206 on the device 200.
  • the protruding element 516 extends into the receiving element 515 such that an air flow path is defined between the device air outlet 503 and the article air inlet 314.
  • Both the protruding element 516 and receiving element 515 may have a substantially rectangular cross section in a plane perpendicular to the direction of air flow therethrough. Of course, other shapes are envisaged.
  • the protruding element 516 and receiving element 515 may have a substantially circular cross-section in a plane perpendicular to the direction of air flow therethrough.
  • the protruding element 516 may have a tip 525, which first passes into the receiving element 515, and a base 528.
  • the protruding element 516 may be shaped such that an outer dimension of the protruding element 516 increases along at least a portion of the length of the protruding element 516 between the tip 525 and the base 528.
  • Such a protruding element 515 may be considered to be substantially wedge shaped. Such a wedge shape may ease insertion of the protruding element 516 into the receiving element 515, and may further help to contribute towards the formation of a tight seal between the protruding element 516 and the receiving element 515 (and thus between the device outlet 503 and the article inlet 314).
  • an outer dimension of the protruding element 516 is constant along at least a portion of the length of the protruding element 516 between the tip 525 and the base 528. It is illustrated in Figure 31 that the dimension DB which is close to the base 528 of the protruding element 516 is equal to the dimension DT which is close to the tip 525 of the protruding element 516.
  • the protruding element 516 may be substantially rigid and the receiving element 515 may be flexible.
  • a protruding element 516 having a constant outer dimension along its length, with a flexible receiving element 515 with an internal dimension that narrows along its length, from the first end 517 to the second end 519 may lead to an interference fit (e.g. whereby the receiving element 515 stretches to accommodate the protruding element 516) which can help to improve the seal between he protruding element 516 and the receiving element 515.
  • the receiving element 515 on the device 200 may have a first end 517 into which the protruding element 516 first passes, and a second end 519.
  • An inner dimension of the receiving element 515, i.e. the inner core of the receiving element may decrease along at least a portion of the length of the receiving element 515 between the first end 517 and the second end 519.
  • the receiving portion 515 may be considered to have an inner shape which is complementary of a wedge shape.
  • the shaping of the receiving element 515 may also help ease insertion of the protruding element 516 into the receiving element 515.
  • the complementary shaping of both the receiving element 515 and the protruding element 516 may help to provide a better seal, and also aid insertion of the protruding element 516 into the receiving element 515.
  • the protruding element 516 may be rigid, and the receiving element 515 may be at least partially flexible. Whilst not depicted, the receiving element 515 may be resiliently biased onto the protruding element 516.
  • the receiving element 515 may be formed of a resiliently deformable material such as silicone, and may be configured to stretch when the protruding element 516 is inserted into the receiving element 515 such that a tight seal is created.
  • Figure 32 is a perspective part-transparent view of an aerosol provision system 100, focussing on the connection between the device outlet 503 and the article inlet 314.
  • the substantially rectangular cross-section of the receiving element 515 can be seen more clearly in Figure 31.
  • the aerosol generating material is formed in a configuration other than as an aerosol generating layer.
  • the aerosol generating material in embodiments is in the form of an aerosol generating segment.
  • the aerosol generating segment generally comprises a solid material. Such a solid material may be shredded tobacco.
  • the aerosol generating material, arranged as an aerosol generating segment for example, may comprise a plurality of individual pieces of aerosol generating material.
  • the aerosol generating material may be individual pieces of tobacco material.
  • the aerosol generating material comprises a plurality of strips, beads or pellets.
  • the aerosol generating segment is a plug of material.
  • the aerosol generating segment in embodiments comprises a body of material.
  • the aerosol generating material is a non-liquid.
  • the body of material comprises a rod of aerosol generating material, for example a tobacco rod.
  • the body of material may comprise shredded tobacco material.
  • the body of material may be formed into a rod.
  • the body of material comprises cut rag tobacco that is formed into a rod.
  • the aerosol generating material may comprise tobacco material.
  • the aerosol generating material may comprise extruded tobacco.
  • the aerosol generating material may comprise reconstituted tobacco.
  • the aerosol generating material, formed as a solid material, may comprise nicotine.
  • the aerosol generating material may comprise, consist of, or essentially consist of, tobacco. In embodiments, the aerosol generating material is free from tobacco.
  • the heating of the article provides a relatively constant release of volatile compounds into an inhalable medium.
  • the aerosol generating segment is a plug of material.
  • the article may comprise a mouth end section.
  • a tubular element may be located between the aerosol generating material and the mouth end section.
  • the article may comprise a ventilation area in the mouth end section.
  • the mouth end section may define a mouthpiece configured to be placed between a user’s lips.
  • the or each resistive heating element is configured to heat substantially the entire aerosol generating material.
  • the aerosol generating segment in embodiments is at least substantially cylindrical. In embodiments, the aerosol generating segment is at least partially wrapped by the resistive heating layer.
  • the resistive heating element extends in the aerosol generating segment.
  • the resistive heating element may extend around the aerosol generating segment.
  • the resistive heating element encircles the aerosol generating segment.
  • at least a portion of the flow path through the article is through the aerosol generating segment.
  • the aerosol generating segment may define part of the air path.
  • the first type of electrical contact and the second type of electrical contact are exposed from the aerosol generating segment.
  • the aerosol generating material may comprise tobacco material as described herein, which includes a tobacco component.
  • the tobacco component may contain paper reconstituted tobacco.
  • the tobacco component may also contain leaf tobacco, extruded tobacco, and/or bandcast tobacco.
  • the tobacco material may be provided in the form of cut rag tobacco.
  • the cut rag tobacco can be formed from a mixture of forms of tobacco material, for instance a mixture of one or more of paper reconstituted tobacco, leaf tobacco, extruded tobacco and bandcast tobacco.
  • the tobacco material comprises paper reconstituted tobacco or a mixture of paper reconstituted tobacco and leaf tobacco.
  • the tobacco material may contain a filler component.
  • the filler component is generally a non-tobacco component, that is, a component that does not include ingredients originating from tobacco.
  • the filler component may be a non-tobacco fibre such as wood fibre or pulp or wheat fibre.
  • the filler component may also be an inorganic material such as chalk, perlite, vermiculite, diatomaceous earth, colloidal silica, magnesium oxide, magnesium sulphate, magnesium carbonate.
  • the filler component may also be a non-tobacco cast material or a non- tobacco extruded material.
  • the filler component may be present in an amount of 0 to 20% by weight of the tobacco material, or in an amount of from 1 to 10% by weight of the composition. In some embodiments, the filler component is absent.
  • the tobacco material contains an aerosol-former material.
  • an "aerosol-former material” is an agent that promotes the generation of an aerosol.
  • An aerosol-former material may promote the generation of an aerosol by promoting an initial vaporisation and/ or the condensation of a gas to an inhalable solid and/ or liquid aerosol.
  • an aerosol-former material may improve the delivery of flavour from the aerosol generating material.
  • any suitable aerosol-former material or agents may be included in the aerosol generating material of the invention, including those described herein.
  • Paper reconstituted tobacco refers to tobacco material formed by a process in which tobacco feedstock is extracted with a solvent to afford an extract of solubles and a residue comprising fibrous material, and then the extract (usually after concentration, and optionally after further processing) is recombined with fibrous material from the residue (usually after refining of the fibrous material, and optionally with the addition of a portion of non-tobacco fibres) by deposition of the extract onto the fibrous material.
  • the process of recombination resembles the process for making paper.

Landscapes

  • Resistance Heating (AREA)

Abstract

L'invention concerne un système de fourniture d'aérosol (100) comprenant : un article (300) comprenant : un matériau de génération d'aérosol (302); un agencement de chauffage (312); et un trajet d'écoulement d'air d'article comprenant une entrée d'air d'article (314). Le système de fourniture d'aérosol comprend en outre : un dispositif de fourniture d'aérosol (200) comprenant : une partie de réception d'article (206); et un trajet d'écoulement d'air de dispositif s'étendant entre un extérieur du dispositif de fourniture d'aérosol et la partie de réception d'article, le trajet d'écoulement d'air de dispositif comprenant une sortie d'air de dispositif (503) conçue pour s'accoupler à l'entrée d'air d'article pour relier le trajet d'écoulement d'air de dispositif au trajet d'écoulement d'air d'article. L'une de l'entrée d'air d'article et de la sortie d'air de dispositif se présente sous la forme d'un élément en saillie (504, 516) et l'autre se présente sous la forme d'un élément de réception (515, 515) conçu pour recevoir l'élément en saillie lorsque l'article est inséré dans la partie de réception d'article.
PCT/EP2024/075273 2023-09-12 2024-09-10 Système de fourniture d'aérosol Pending WO2025056558A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US202363537976P 2023-09-12 2023-09-12
US63/537,976 2023-09-12
GB2317719.9 2023-11-20
GB202317719 2023-11-20

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WO2025056558A1 true WO2025056558A1 (fr) 2025-03-20

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200268049A1 (en) * 2013-03-12 2020-08-27 Rai Strategic Holdings, Inc. Electronic smoking article having a vapor-enhancing apparatus and associated method
EP3847911A1 (fr) * 2017-04-27 2021-07-14 RAI Strategic Holdings, Inc. Dispositif de distribution d'aérosol comprenant un élément mèche en céramique
AU2020225438A1 (en) * 2019-02-18 2021-09-09 Nicoventures Trading Limited Aerosol provision systems
WO2023118222A1 (fr) * 2021-12-20 2023-06-29 Nicoventures Trading Limited Consommable destiné à être utilisé avec un dispositif de fourniture d'aérosol

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200268049A1 (en) * 2013-03-12 2020-08-27 Rai Strategic Holdings, Inc. Electronic smoking article having a vapor-enhancing apparatus and associated method
EP3847911A1 (fr) * 2017-04-27 2021-07-14 RAI Strategic Holdings, Inc. Dispositif de distribution d'aérosol comprenant un élément mèche en céramique
AU2020225438A1 (en) * 2019-02-18 2021-09-09 Nicoventures Trading Limited Aerosol provision systems
WO2023118222A1 (fr) * 2021-12-20 2023-06-29 Nicoventures Trading Limited Consommable destiné à être utilisé avec un dispositif de fourniture d'aérosol

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