Susceptor device for induction heating aerosol delivery device

Abstract

An aerosol delivery device and an aerosol source component for use with the aerosol delivery device are provided. [Solution] The aerosol source member 104 comprises a base material portion 110 including a plurality of spaced-apart susceptor bands. In one mounting configuration, each susceptor band comprises a plurality of susceptor coils radially spaced around the longitudinal axis of the base material portion, each susceptor coil defining its longitudinal axis, and the longitudinal axis of each of the plurality of susceptor coils is substantially parallel to the longitudinal axis of the base material portion. In another mounting configuration, each susceptor band extends through the center of the base material portion across its diameter, and each susceptor band contains a plurality of spaced-apart susceptor particles.

Description

Technical Field

[0001] This application claims the priority and benefit of U.S. Patent Application No. 16 / 260,712, filed on January 29, 2019, titled "Susceptor Arrangement for Induction-Heated Aerosol Delivery Device", which is incorporated herein by reference in its entirety.

[0002] The present disclosure relates to an aerosol source member, an aerosol delivery device, and its use for generating tobacco components or other materials in an inhalable form. More specifically, the present disclosure relates to an aerosol source member such as a smoking article, an aerosol delivery device, and a system that utilize electrical heating to heat tobacco or tobacco-derived materials, preferably without significant combustion, to provide a substance that can be inhaled in the form of an aerosol for human consumption.

Background Art

[0003] As improvements or alternatives to smoking products based on the combustion of tobacco, many smoking articles have been proposed over the years. Exemplary alternatives include devices in which a solid fuel or a liquid fuel is burned to transfer heat to the tobacco or in which a chemical reaction is used to provide such a heat source. Examples include the smoking article described in U.S. Patent No. 9,078,473 to Worm et al., which is incorporated herein by reference in its entirety.

[0004] The focus of improved or alternative smoking products has typically been to provide the sensation associated with smoking a cigarette, cigar, or pipe without delivering a substantial amount of incomplete combustion and pyrolysis products. For this purpose, numerous smoking products, flavor generators, and medicinal inhalers have been proposed that utilize electrical energy to vaporize or heat volatile materials or to provide the sensation of smoking a cigarette, cigar, or pipe without significantly burning the tobacco. See, for example, the various alternative smoking products, aerosol delivery devices, and heat sources described in the background art of Robinson et al., U.S. Patent No. 7,726,320, Griffith, Jr. et al., U.S. Patent Application Publication No. 2013 / 0255702, and Sears et al., U.S. Patent Application Publication No. 2014 / 0096781, which are incorporated herein in their entirety by reference. See also, for example, the various types of smoking products, aerosol delivery devices, and power heating sources referenced by the trademark names and commercial suppliers described in Bless et al.'s U.S. Patent Application Publication No. 2015 / 0220232, which is incorporated herein by reference in its entirety. Additional types of smoking products, aerosol delivery devices, and power heating sources referenced by the trademark names and commercial suppliers are described in DePiano et al.'s U.S. Patent Application Publication No. 2015 / 0245659, which is also incorporated herein by reference in its entirety.Other representative cigarettes or smoking products described and, in some cases, commercially available, include, by reference, U.S. Patent No. 4,735,217 by Gerth et al., U.S. Patent No. 4,922,901 by Brooks et al., U.S. Patent No. 4,947,874 and U.S. Patent No. 4,947,875 by Counts et al., U.S. Patent No. 5,060,671 by Counts et al., U.S. Patent No. 5,249,586 by Morgan et al., Cou U.S. Patent No. 5,388,594 by nts et al., U.S. Patent No. 5,666,977 by Higgins et al., U.S. Patent No. 6,053,176 by Adams et al., U.S. Patent No. 6,164,287 by White, U.S. Patent No. 6,196,218 by Voges, U.S. Patent No. 6,810,883 by Felter et al., U.S. Patent No. 6,854,461 by Nichols, U.S. Patent No. 7,832,410 by Hon, Kobayashi U.S. Patent No. 7,513,253 of [name omitted], U.S. Patent No. 7,726,320 of Robinson et al., U.S. Patent No. 7,896,006 of Hamano, U.S. Patent No. 6,772,756 of Shayan, U.S. Patent Publication No. 2009 / 0095311 of Hon, U.S. Patent Publication No. 2006 / 0196518 of Hon, U.S. Patent Publication No. 2009 / 0126745 and U.S. Patent Publication No. 2009 / 0188490 of Thoren This includes the specifications described in U.S. Patent Publication No. 2009 / 0272379 by s et al., U.S. Patent Publication Nos. 2009 / 0260641 and 2009 / 0260642 by Monsees et al., U.S. Patent Publication Nos. 2008 / 0149118 and 2010 / 0024834 by Oglesby et al., U.S. Patent Publication No. 2010 / 0307518 by Wang, and International Publication No. 2010 / 091593 by Hon.

[0005] Representative products that share many of the attributes of conventional cigarettes, cigars, or pipes include ACCORD(R) by Philip Morris Incorporated, ALPHA(TM), JOYE 510(TM), and M4(TM) by InnoVapor LLC, CIRRUS(TM) and FLING(TM) by White Cloud Cigarettes, BLU(TM) by Fontem Ventures BV, COHITA(TM), COLIBRI(TM), ELITE CLASSIC(TM), MAGNUM(TM), PHANTOM(TM), and SENSE(TM) by EPUFFER(R) International Inc., DUOPRO(TM), STORM(TM), and VAPORKING(R) by Electronic Cigarettes, Inc., EGAR(TM) by Egar Australia, eGo-C(TM) and eGo-T(TM) by Joyetech, ELUSION(TM) by Elusion UK Ltd, and Eonsmoke EONSMOKE(R) by LLC, FIN(TM) by FIN Branding Group, LLC, SMOKE(R) by Green Smoke Inc.USA, GREENARETTE(TM) by Greenarette LLC, HALLIGAN(TM), HENDU(TM), JET(TM), MAXXQ(TM), PINK(TM), and PITBULL(TM) by SMOKE STIK(R), HEATBAR(TM) by Philip Morris International, Inc., HYDRO IMPERIAL(TM) and LXE(TM) by Crown7, LOGIC(TM) and THE CUBAN(TM) by LOGIC Technology, LUCI(R) by Luciano Smokes Inc., METRO(R) by Nicotek, LLC, NJOY(R) and ONEJOY(TM) by Sottera, Inc., NO.7(TM) by SS Choice LLC, and PREMIUM ELECTRONIC by PremiumEstore LLC. CIGARETTE(TM), Ruyan America, Inc.RAPP E-MYSTICK(TM) by Red Dragon Products, LLC, RED DRAGON(TM) by Red Dragon Products, LLC, RUYAN(R) by Ruyan Group(Holdings)Ltd., SF(R) by Smoker Friendly International, LLC, GREEN SMART SMOKER(R) by The Smart Smoking Electronic Cigarette Company Ltd., SMOKE ASSIST(R) by Coastline Products LLC, SMOKING EVERYWHERE(R) by Smoking Everywhere, Inc., V2CIGS(TM) by VMR Products LLC, VAPOR NINE(TM) by VaporNine LLC, VAPOR4LIFE(R) by Vapor 4 Life, Inc., VEPPO(TM) by E-CigaretteDirect, LLC, VUSE(R) by RJReynolds Vapor Company, Mistic Menthol products by Mistic Ecigs, and Vype products by CN Creative Ltd, and Philip Morris IQOS™ is marketed by International, and GLO™ by British American Tobacco. Furthermore, other electric aerosol delivery devices, particularly those characterized as so-called e-cigarettes, are marketed under the trade names COOLER VISIONS™, DIRECT E-CIG™, DRAGONFLY™, EMIST™, EVERSMOKE™, GAMUCCI®, HYBRID FLAME™, KNIGHT STICKS™, ROYAL BLUES™, SMOKETIP®, and SOUTH BEACH SMOKE™. [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] U.S. Patent No. 9,078,473 [Patent Document 2] U.S. Patent No. 7,726,320 [Patent Document 3] U.S. Patent Application Publication No. 2013 / 0255702 [Patent Document 4] U.S. Patent Application Publication No. 2014 / 0096781 [Patent Document 5] U.S. Patent Application Publication No. 2015 / 0220232 Specification [Patent Document 6] U.S. Patent Application Publication No. 2015 / 0245659 [Patent Document 7] U.S. Patent No. 4,735,217 [Patent Document 8] U.S. Patent No. 4,922,901 [Patent Document 9] U.S. Patent No. 4,947,874 [Patent Document 10] U.S. Patent No. 4,947,875 [Patent Document 11] U.S. Patent No. 5,060,671 [Patent Document 12] U.S. Patent No. 5,249,586 [Patent Document 13] U.S. Patent No. 5,388,594 [Patent Document 14] U.S. Patent No. 5,666,977 [Patent Document 15] U.S. Patent No. 6,053,176 [Patent Document 16] U.S. Patent No. 6,164,287 [Patent Document 17] U.S. Patent No. 6,196,218 [Patent Document 18] U.S. Patent No. 6,810,883 [Patent Document 19] U.S. Patent No. 6,854,461 [Patent Document 20] U.S. Patent No. 7,832,410 [Patent Document 21] U.S. Patent No. 7,513,253 [Patent Document 22] U.S. Patent No. 7,896,006 [Patent Document 23] U.S. Patent No. 6,772,756 [Patent Document 24] U.S. Patent Application Publication No. 2009 / 0095311 [Patent Document 25] U.S. Patent Application Publication No. 2006 / 0196518 [Patent Document 26] U.S. Patent Application Publication No. 2009 / 0126745 [Patent Document 27] U.S. Patent Application Publication No. 2009 / 018849 [Patent Document 28] U.S. Patent Application Publication No. 2009 / 0272379 [Patent Document 29] U.S. Patent Application Publication No. 2009 / 0260641 [Patent Document 30] U.S. Patent Application Publication No. 2009 / 0260642 [Patent Document 31] ; U.S. Patent Application Publication No. 2008 / 0149118 [Patent Document 32] U.S. Patent Application Publication No. 2010 / 0024834 [Patent Document 33] U.S. Patent Application Publication No. 2010 / 0307518 [Patent Document 34] International Publication No. 2010 / 091593 [Summary of the Invention] [Problems to be Solved by the Invention]

[0007] Articles that produce the taste and sensation of smoking by electrically heating tobacco or tobacco-derived materials have historically suffered from inconsistent performance characteristics. Therefore, it is desirable to provide smoking products that can provide the smoking sensation of a cigarette, cigar, or pipe without substantially burning, and that do so with advantageous performance characteristics. [Means for solving the problem]

[0008] In various implementations, this disclosure provides an aerosol delivery device and an aerosol source component for use with an induction-heated aerosol delivery device having a resonant transmitter. This disclosure includes, but is not limited to, the following exemplary implementations.

[0009] Exemplary Implementation Embodiment 1: An aerosol source member for use with an induction heating aerosol delivery device having a resonant transmitting unit, wherein the aerosol source member comprises a base material portion including a plurality of spaced-apart susceptor bands defining a longitudinal axis, each susceptor band comprising a plurality of susceptor coils radially spaced around the longitudinal axis of the base material portion, each susceptor coil defining a longitudinal axis, and the longitudinal axis of each of the plurality of susceptor coils being substantially parallel to the longitudinal axis of the base material portion.

[0010] Exemplary Implementation Mode 2: Aerosol source member of any of the above-described exemplary embodiments or any combination of any of the above-described exemplary embodiments, wherein multiple susceptor bands are substantially evenly spaced apart.

[0011] Exemplary Implementation Form 3: Aerosol source member of any of the above-described exemplary embodiments or any combination of any of the above-described exemplary embodiments, wherein multiple susceptor coils within each susceptor band are substantially evenly spaced apart.

[0012] Exemplary Implementation Form 4: An aerosol source member of any of the above-described exemplary embodiments or any combination of any of the above-described exemplary embodiments, further comprising a cover layer disposed around the substrate portion.

[0013] Exemplary Implementation Form 5: An aerosol source member of any of the above-described exemplary embodiments or any combination of any of the above-described exemplary embodiments, wherein the cover layer comprises a foil sublayer and a paper sublayer disposed around the foil sublayer.

[0014] Exemplary Implementation Mode 6: Aerosol source member of any of the above-described exemplary embodiments or any combination of the above-described exemplary embodiments, wherein the plurality of susceptor coils include cobalt, iron, nickel and combinations thereof.

[0015] Exemplary Implementation Form 7: Aerosol source member of any of the above-described exemplary embodiments or any combination of any of the above-described exemplary embodiments, wherein the base material portion comprises extruded tobacco material.

[0016] Exemplary Implementation Form 8: Aerosol source member of any of the above-described exemplary embodiments or any combination of any of the above-described exemplary embodiments, wherein the base material portion comprises a reconstituted tobacco sheet material.

[0017] Exemplary Implementation Form 9: Aerosol source member of any of the above-described exemplary embodiments or any combination of any of the above-described exemplary embodiments, wherein the base portion comprises at least one of tobacco beads and tobacco powder.

[0018] Exemplary Implementation Form 10: An aerosol source member having a substantially cylindrical shape, the aerosol source member of any of the above-described exemplary embodiments or any combination of any of the above-described exemplary embodiments.

[0019] Exemplary Implementation Embodiment 11: Aerosol source member for use with an induction heating aerosol delivery device having a resonant transmitting unit, wherein the aerosol source member comprises a base material portion including a plurality of spaced-apart susceptor bands, each susceptor band extending through the center of the base material portion across its diameter, and each susceptor band containing a plurality of spaced-apart susceptor particles.

[0020] Exemplary Implementation Form 12: Aerosol source member of any of the above-described exemplary embodiments or any combination of any of the above-described exemplary embodiments, wherein a plurality of susceptor particles are substantially aligned within each susceptor band.

[0021] Exemplary Implementation Form 13: Aerosol source member of any of the above-described exemplary embodiments or any combination of any of the above-described exemplary embodiments, wherein multiple susceptor bands are substantially evenly spaced apart.

[0022] Exemplary Implementation Form 14: Aerosol source member of any of the above-described exemplary embodiments or any combination of any of the above-described exemplary embodiments, wherein a plurality of susceptor particles are substantially evenly separated within each susceptor band.

[0023] Exemplary implementation form 15: An aerosol source member of any of the above-described exemplary embodiments or any combination of any of the above-described exemplary embodiments, further comprising a cover layer disposed around the substrate portion.

[0024] Exemplary Implementation Form 16: An aerosol source member of any of the above-described exemplary embodiments or any combination of any of the above-described exemplary embodiments, wherein the cover layer comprises a foil sublayer and a paper sublayer disposed around the foil sublayer.

[0025] Exemplary Implementation Form 17: Aerosol source member of any of the above-described exemplary embodiments or any combination of any of the above-described exemplary embodiments, wherein the plurality of susceptor particles have shapes selected from flake, spherical, hexagonal, cubic, and irregular shapes.

[0026] Exemplary Implementation Form 18: Aerosol source member of any of the above-described exemplary embodiments or any combination of the above-described exemplary embodiments, wherein the plurality of susceptor particles include materials selected from cobalt material, iron material, nickel material, zinc material, manganese material, stainless steel material, ceramic material, silicon carbide material, carbon material and combinations thereof.

[0027] Exemplary Implementation Form 19: Aerosol source member of any of the above-described exemplary embodiments or any combination of any of the above-described exemplary embodiments, wherein the base material portion comprises extruded tobacco material.

[0028] Exemplary implementation form 20: Aerosol source member of any of the above-described exemplary embodiments or any combination of any of the above-described exemplary embodiments, wherein the base material portion includes a reconstituted tobacco sheet material.

[0029] Exemplary Implementation Mode 21: Aerosol source member of any of the above-described exemplary embodiments or any combination of any of the above-described exemplary embodiments, wherein the base portion comprises at least one of tobacco beads and tobacco powder.

[0030] Exemplary Implementation Mode 22: An aerosol source member having a substantially cylindrical shape, the aerosol source member of any of the above-described exemplary embodiments or any combination of any of the above-described exemplary embodiments.

[0031] Exemplary Implementation Embodiment 23: Aerosol source member for use with an induction heating aerosol delivery device having a resonant transmitting unit, the aerosol source member comprising a base material portion having a core portion, a peripheral portion disposed around the core portion, and a cover layer disposed around the peripheral portion, wherein the core portion contains a plurality of susceptor particles substantially evenly distributed therein and having a first distribution density, and the peripheral layer contains a plurality of susceptor particles substantially evenly distributed therein and having a second distribution density, the first distribution density being greater than the second distribution density.

[0032] Exemplary Implementation Mode 24: Aerosol source member of any of the above-described exemplary embodiments or any combination of any of the above-described exemplary embodiments, wherein the core portion and the surrounding portion comprise the same substrate material having different susceptor particle distribution densities.

[0033] Exemplary Implementation Form 25: Aerosol source member of any of the above-described exemplary embodiments or any combination of any of the above-described exemplary embodiments, wherein the core portion and the surrounding portion comprise separate substrate layers having different susceptor particle distribution densities.

[0034] Exemplary Implementation Form 26: An aerosol source member of any of the above-described exemplary embodiments or any combination of any of the above-described exemplary embodiments, wherein the cover layer comprises a foil sublayer and a paper sublayer disposed around the foil sublayer.

[0035] Exemplary Implementation Mode 27: Aerosol source member of any of the above-described exemplary embodiments or any combination of any of the above-described exemplary embodiments, wherein at least one of the plurality of susceptor particles has a shape selected from flake shape, spherical, hexagonal, cubic shape and irregular shape.

[0036] Exemplary Implementation Form 28: Aerosol source member of any of the above-described exemplary embodiments or any combination of any of the above-described exemplary embodiments, wherein at least one of the plurality of susceptor particles comprises a material selected from cobalt material, iron material, nickel material, zinc material, manganese material, stainless steel material, ceramic material, silicon carbide material, carbon material and combinations thereof.

[0037] Exemplary Implementation Form 29: Aerosol source member of any of the above-described exemplary embodiments or any combination of any of the above-described exemplary embodiments, wherein the base material portion comprises extruded tobacco material.

[0038] Exemplary Implementation Form 30: Aerosol source member of any of the above-described exemplary embodiments or any combination of any of the above-described exemplary embodiments, wherein the base material portion includes a reconstituted tobacco sheet material.

[0039] Exemplary Implementation Embodiment 31: An aerosol source member of any of the above-described exemplary embodiments or any combination of any of the above-described exemplary embodiments, wherein the base portion comprises at least one of tobacco beads and tobacco powder.

[0040] Exemplary Implementation Form 32: An aerosol source member having a cylindrical shape, an aerosol source member of any of the above-described exemplary embodiments or any combination of any of the above-described exemplary embodiments.

[0041] These and other features, aspects and advantages of the Disclosure will become apparent upon reading the following detailed description, along with the accompanying drawings which are briefly described below. The Invention includes any combination of two, three, four or more of the above-described embodiments, and any combination of two, three, four or more features or elements described herein, whether or not such features or elements are expressly combined in the description of the particular embodiments herein. The Disclosure is intended to be read as a whole so that, unless otherwise expressly indicated in the context, any separable features or elements of the disclosed Invention appear as intended to be combined in any of its various aspects and embodiments.

[0042] This disclosure uses the general terminology described above, and the attached drawings will be referenced below, although these drawings are not necessarily drawn to scale. [Brief explanation of the drawing]

[0043] [Figure 1] The diagram shows a schematic perspective view of an aerosol delivery device comprising a control unit and an aerosol source member according to an exemplary implementation of the present disclosure, where the aerosol source member and the control unit are connected to each other. [Figure 2] Figure 1 shows a schematic perspective view of the aerosol delivery device according to an exemplary implementation of the present disclosure, where the aerosol source member and the control body are separated from each other. [Figure 3] A schematic front view of an aerosol delivery device according to an exemplary implementation of the present disclosure is shown. [Figure 4] This diagram shows a schematic cross-sectional view of a portion of the substrate of the aerosol source member according to the exemplary implementation configuration of this disclosure. [Figure 5] This diagram shows a schematic cross-sectional view of a portion of the substrate of the aerosol source member according to the exemplary implementation configuration of this disclosure. [Figure 6] This diagram shows a schematic cross-sectional view of a portion of the substrate of the aerosol source member according to the exemplary implementation configuration of this disclosure. [Figure 7]Figure 6 shows a schematic longitudinal cross-sectional view of a portion of the substrate of the aerosol source member according to an exemplary implementation of the present disclosure. [Figure 8] This diagram shows a schematic perspective view of a portion of the substrate of the aerosol source member according to the exemplary implementation configuration of this disclosure. [Figure 9] Figure 8 shows a schematic cross-sectional view of a portion of the substrate of the aerosol source member according to the exemplary implementation configuration of this disclosure. [Figure 10] A schematic front view of an aerosol delivery device according to an exemplary implementation of the present disclosure is shown. [Modes for carrying out the invention]

[0044] This disclosure is described in further detail below with reference to its exemplary implementations. These exemplary implementations are described in such a manner that this disclosure is thorough and complete and fully conveys the scope of this disclosure to those skilled in the art. In fact, this disclosure may be embodied in many different forms and should not be construed as being limited to the implementations described herein. Rather, these implementations are provided so that this disclosure may satisfy applicable legal requirements. The singular nouns "a," "an," "the," etc., used herein and in the appended claims, refer to multiple subjects unless otherwise explicitly indicated in the context. Also, while this specification may refer to quantitative measures, values, geometric relationships, etc., unless otherwise stated, one or more of these may be absolute or approximate to describe possible acceptable variations, such as those due to technical tolerances.

[0045] As described below, exemplary implementations of the present disclosure relate to aerosol delivery devices. The aerosol delivery devices according to the present disclosure use electrical energy to heat a material (preferably without significantly burning the material) to form an inhalable substance. Components of such systems are in the form of articles small enough to be considered handheld devices. That is, no smoke is produced when using preferred aerosol delivery device components, in the sense that the aerosol is mainly produced from the byproducts of the combustion or pyrolysis of tobacco; rather, when using these preferred systems, vapor is produced due to the volatilization or vaporization of certain components incorporated therein. In some exemplary implementations, components of the aerosol delivery device may be characterized as e-cigarettes, which most preferably incorporate tobacco and / or tobacco-derived components and thus deliver tobacco-derived components in aerosol form.

[0046] Aerosol-generating component of a particular preferred aerosol delivery device can produce a number of sensations of smoking a cigarette, cigar, or pipe (e.g., the form of inhalation and exhalation, the type of taste or flavor, the sensory stimulation effect, the physical feel, the form of use, the visual stimulation such as that produced by a visible aerosol) without any of its components substantially burning. For example, a user of an aerosol delivery device in some exemplary implementations of the present disclosure can hold and use its components in the same way a smoker uses a conventional smoking product, inhale one end of the component to inhale the aerosol produced by the component, inhale at selected time intervals, and so on.

[0047] While the systems described herein generally relate to implementations of aerosol delivery devices such as so-called "electronic cigarettes" or "heated tobacco products," it should be understood that the mechanisms, components, features, and methods may be embodied in many different forms and associated with various articles. For example, the descriptions provided herein may be used in combination with implementations of related packaging for conventional smoking products (e.g., cigarettes, cigars, pipes, etc.), heated tobacco products, and any of the products disclosed herein. Therefore, it should be understood that the descriptions of mechanisms, components, features, and methods disclosed herein are discussed merely as examples relating to implementations of aerosol delivery devices and may be embodied and used in various other products and methods.

[0048] The aerosol delivery devices of this disclosure may also be characterized as vapor products or drug delivery articles. Such articles or devices may be adapted to deliver one or more substances (e.g., flavors and / or pharmaceutically active ingredients or nutritional active ingredients) in an inhalable form or state. For example, the inhalable substance may be substantially in vapor form (i.e., a substance in the gas phase at a temperature below its critical point). Alternatively, the inhalable substance may be in aerosol form (i.e., a suspension of fine solid particles or droplets in a gas). For clarity, the term “aerosol” as used herein means including vapors, gases and aerosols in forms or types suitable for human inhalation, regardless of whether they are visible or in a form that can be considered fuzzy. The physical form of the inhalable substance may depend on the nature of the medium and the inhalable substance itself, with respect to whether the inhalable substance exists in vapor or aerosol form, although this is not necessarily limited by the nature of the device of the present invention. In some implementations, the terms “vapor” and “aerosol” may be interchangeable. Therefore, for simplicity, the terms “vapor” and “aerosol” used to describe aspects of this disclosure are understood to be interchangeable unless otherwise specified.

[0049] The aerosol delivery device of the present disclosure may, when in use, undergo many of the physical actions performed by an individual when using conventional types of smoking products (e.g., cigarettes, cigars, or pipes, which are used by lighting and inhaling a tobacco). For example, a user of the aerosol delivery device of the present disclosure may hold the item as with conventional types of smoking products, inhale one end of the item to inhale the aerosol produced by the item, and inhale at selected time intervals, and so on.

[0050] The aerosol delivery devices of this disclosure generally include a number of components housed within an outer body or shell, which may be called a housing. The overall design of the outer body or shell is modifiable, and the form or configuration of the outer body that can define the overall dimensions and shape of the aerosol delivery device is modifiable. Typically, an elongated body similar in shape to a cigarette or cigar may be formed from a single, integrated housing, or the elongated housing may be formed from two or more separable bodies. For example, the aerosol delivery device may have an elongated shell or body whose shape is substantially tubular and may resemble the shape of a conventional cigarette or cigar. In another example, the aerosol delivery device may be substantially rectangular or have a substantially rectangular cuboid shape (e.g., similar to a USB flash drive). In one example, all components of the aerosol delivery device are housed within a single housing. Alternatively, the aerosol delivery device may have two or more joined and separable housings. For example, an aerosol delivery device may have a control body at one end, comprising a housing that contains one or more reusable components (e.g., a rechargeable battery and / or a storage battery such as a rechargeable supercapacitor, and various electronic devices for controlling the operation of the items), and a removable and connectable outer body or shell at the other end that contains a disposable component (e.g., a disposable flavor-containing cartridge containing aerosol precursor material, fragrance, etc.). More specific forms, configurations, and arrangements of components within a single-housing type unit or a multi-component separable housing type unit will become apparent in light of further disclosures provided herein. Furthermore, by considering commercially available electronic aerosol delivery devices, the design and component arrangements of various aerosol delivery devices can be understood.

[0051] As will be described in more detail below, the aerosol delivery devices of the present disclosure include, or comprise, several combinations of aerosol source members, which include a power source (i.e., a power supply), at least one control component (means for operating, controlling, regulating and stopping power for heating, such as by controlling the flow of current from the power source to other components of the article (e.g., a microprocessor, individually or as part of a microcontroller)), a heater or heating element (e.g., an electrical resistance heating element or other component and / or an induction coil or other related component and / or one or more radiant heating elements), and a substrate portion that can generate an aerosol when sufficiently heated. In some implementations, the aerosol source member may include a mouthpiece end or tip configured to allow the aerosol delivery device to be inhaled for aerosol inhalation (e.g., a defined airflow path through the article from which the generated aerosol can be drawn out when inhaled). In other implementations, the control body may include a mouthpiece configured to allow inhalation for aerosol inhalation.

[0052] The arrangement of components within the aerosol delivery device of this disclosure can vary. In certain configurations, the aerosol source member, or the substrate portion of the aerosol source member, may be positioned close to the heating member to maximize aerosol delivery to the user. However, other configurations are not excluded. Generally, the heating member may be positioned close enough to the aerosol source member, or the substrate portion of the aerosol source member, so that heat from the heating member can volatilize the aerosol source member, or the substrate portion of the aerosol source member (and, in some configurations, one or more fragrances, drugs, etc., which may also be provided for delivery to the user) to form an aerosol for delivery to the user. When the heating member heats the aerosol source member, or the substrate portion of the aerosol source member, the aerosol is formed, released, or generated in a physical form suitable for inhalation by the consumer. It should be noted that the terms used herein are interchangeable to include form or generate, forming or generating, forms or generates, and formed or generated. Specifically, inhalable substances are released in the form of vapors or aerosols or mixtures thereof, and such terms are used interchangeably herein unless otherwise specified.

[0053] As described above, various implementations of aerosol delivery devices may incorporate a power source (e.g., a battery or other power source) to provide a sufficient current flow to the aerosol delivery device to provide various functions, such as powering a heating element, an induction coil, a control system, or an indicator. The power source can take various implementation forms. Preferably, the power source can supply enough power to rapidly activate the heat source to form an aerosol and power the aerosol delivery device throughout use for a desired duration. Preferably, the power source is sized to fit conveniently within the aerosol delivery device so that the aerosol delivery device can be easily handled. Furthermore, a preferred power source is lightweight enough not to impair the desired smoking experience.

[0054] Further specific forms, configurations, and arrangements of components within the aerosol delivery device of this disclosure will become apparent in light of the further disclosures provided below. Furthermore, by considering commercially available electronic aerosol delivery devices, the selection of various aerosol delivery device components can be understood. Furthermore, by considering commercially available electronic aerosol delivery devices, the arrangement of components within the aerosol delivery device can also be understood.

[0055] As described above, the aerosol delivery device may be configured to heat an aerosol source member, or the substrate portion of the aerosol source member, in order to generate an aerosol. In some implementations, the aerosol delivery device may include a heating device configured to heat an extruded structure and / or substrate in solid or liquid form (e.g., beads, fragments, wrap, fiber sheets, or paper), a substrate material combined with an aerosol precursor composition, tobacco and / or tobacco-derived material (i.e., material naturally found in tobacco, directly separated from tobacco, or synthetically prepared material), etc. Such aerosol delivery devices may include so-called e-cigarettes.

[0056] Regardless of the type of substrate material being heated, some aerosol delivery devices may include a heating element configured to heat the aerosol source member or the substrate portion of the aerosol source member. In some devices, the heating element may comprise a resistance heating element. The resistance heating element may be configured to generate heat when an electric current is passed through it. Such heating elements often contain a metallic material and are configured to generate heat as a result of the electrical resistance associated with passing an electric current through them. Such a resistance heating element may be positioned in close proximity to the aerosol source member or the substrate portion of the aerosol source member. Alternatively, the heating element may be positioned in contact with a solid or semi-solid aerosol precursor composition. Such configurations may heat the aerosol source member or the substrate portion of the aerosol source member to generate an aerosol. Representative types of solid and semi-solid aerosol precursor compositions and formulations are disclosed in U.S. Patent No. 8,424,538 by Thomas et al., U.S. Patent No. 8,464,726 by Sebastian et al., U.S. Patent Publication No. 2015 / 0083150 by Conner et al., U.S. Patent Publication No. 2015 / 0157052 by Ademe et al., and U.S. Patent Application No. 14 / 755,205 filed on 30 June 2015, all of which are incorporated herein by reference in their entirety.

[0057] In the illustrated implementation, an induction heating device is used. In various implementations, the induction heating device may comprise a resonant transmitter and a resonant receiver (e.g., one or more susceptors or multiple susceptor particles). Thus, the operation of the aerosol delivery device may require introducing an alternating current into the resonant transmitter to generate an oscillating magnetic field, which in turn induces eddy currents in the resonant receiver. In various implementations, the resonant receiver may be part of the aerosol source member or the substrate portion of the aerosol source member, and / or may be located in close proximity to the aerosol source member or the substrate portion of the aerosol source member. This alternating current generates heat in the resonant receiver, thereby generating an aerosol from the aerosol source member. Several examples of various induction heating methods and configurations are described in U.S. Patent Application No. 15 / 799,365, filed on 31 October 2017 and titled "Induction Heated Aerosol Delivery Device," and U.S. Patent Application No. 15 / 836,086, filed on 8 December 2017 and titled "Quasi-Resonant Flyback Converter for an Induction-Based Aerosol Delivery Device," each of which is incorporated herein by reference in its entirety. Additional examples of various induction-based control components and associated circuits are described in U.S. Patent Application No. 15 / 352,153, filed on 15 November 2016 and titled "Induction-Based Aerosol Delivery Device," and U.S. Patent Application Publication No. 2017 / 0202266 by Sur et al., each of which is incorporated herein by reference in its entirety. While the illustrated implementation describes a single resonant transmitter, please note that other implementations, such as those with segmented induction heating devices, may have multiple independent resonant transmitters.

[0058] Figure 1 shows an aerosol delivery device 100 in an exemplary implementation of the present disclosure. The aerosol delivery device 100 may include a control body 102 and an aerosol source member 104. In various implementations, the aerosol source member 104 and the control body 102 may be aligned permanently or detachably in a functional relationship. In this regard, Figure 1 shows the aerosol delivery device 100 in a connected configuration, and Figure 2 shows the aerosol delivery device 100 in a separated configuration. Various mechanisms may connect the aerosol source member 104 to the control body 102 to provide screw engagement, press-fit engagement, interlocking fit, sliding fit, magnetic engagement, etc. In various implementations, the control body 102 of the aerosol delivery device 100 may be substantially rod-shaped, substantially tubular, substantially rectangular, or rectangular parallelepiped shape (e.g., similar to a USB flash drive), or substantially cylindrical. For the purposes of this disclosure, it should be noted that the term “substantially” should be understood, as understood by those skilled in the art, to mean substantially within manufacturing tolerances and / or within some degree of manufacturing tolerances. In other implementations, the control body may take on other handheld shapes such as a small box shape, various podmod (e.g., all-in-one) shapes, or a fob shape.

[0059] In certain implementations, one or both of the control body 102 and the aerosol source member 104 may be described as disposable or reusable. For example, the control unit 102 may have a replaceable or rechargeable battery, a solid battery, a thin-film solid battery, a rechargeable supercapacitor, etc., and may therefore be combined with any kind of recharging technology, including connection to a wall charger, connection to a car charger (e.g., cigarette lighter socket, USB port, etc.), connection to a computer via a universal serial bus (USB) cable or connector (e.g., USB 2.0, 3.0, 3.1, USB Type-C), connection to a USB connector (e.g., USB 2.0, 3.0, 3.1, USB Type-C, which may be implemented in wall outlets, electronic devices, vehicles, etc.), connection to a photovoltaic cell (sometimes called a solar cell) or a solar panel of a solar cell, wireless chargers such as chargers using inductive wireless charging (e.g., wireless charging compliant with the Qi wireless charging standard by the Wireless Power Consortium (WPC)), or radio frequency (RF) based chargers, and connection to an array of external cells such as a mobile battery for charging the device via a USB connector or wireless charger. An example of an inductive wireless charging system is described in U.S. Patent Application Publication No. 2017 / 0112196 by Sur et al., which is incorporated entirely herein by reference. Furthermore, in some implementations, the aerosol source member 104 may comprise a disposable device. Disposable components for use with the control body are disclosed in U.S. Patent No. 8,910,639 by Chang et al., which is incorporated entirely herein by reference. In some implementations, the control body 102 may be inserted into and / or connected to a separate charging station for charging the rechargeable battery of the device 100. In some implementations, the charging station itself may include a rechargeable power source for recharging the rechargeable battery of the device 100.

[0060] Referring to Figure 2, which shows a perspective view of the aerosol delivery device 100 in Figure 1, the aerosol source member 104 and the control body 102 are separated from each other, and in some implementations, the aerosol source member 104 may include a heated end 106 configured to be inserted into the control body 102 and a suction end 108 that the user inhales to generate aerosols. In various implementations, at least a portion of the heated end 106 may include a base material portion 110. Note that in other implementations, the aerosol source member 104 does not need to include a heated end and / or a suction end.

[0061] As described above, the heating element in the illustrated implementation comprises an induction heating device. Figure 3 shows a schematic front view of an aerosol delivery device 100 in an exemplary implementation of the present disclosure. Generally, the control body 102 in the illustrated implementation includes a resonant transmitter, and the aerosol source member 104 includes a resonant receiver (e.g., one or more susceptors) that facilitates heating of at least a portion of the aerosol source member 104 (e.g., the substrate portion 110). In various implementations, the resonant transmitter and / or resonant receiver can take various forms, but in the particular implementation shown in Figure 3, the resonant transmitter includes a helical coil 128 that may surround a support cylinder 129 in some implementations, but the support cylinder is not required in other implementations. In various implementations, the resonant transmitter may be made from one or more conductive materials, including, for example, silver, gold, aluminum, brass, zinc, iron, nickel and their alloys, conductive ceramics such as yttrium-doped zirconia, indium tin oxide, yttrium-doped titanate, and any combination thereof. In the illustrated implementation, the helical coil 128 is made from a conductive metallic material such as copper. In further implementations, the helical coil may include a non-conductive insulating cover / wrap material. Such materials may include, for example, one or more polymer materials such as epoxy and silicone rubber, which may be useful for low-temperature applications, or glass fiber, ceramics, refractory materials, which may be useful for high-temperature applications.

[0062] As shown in the illustration, the resonant transmitter 128 may extend close to the engaging end of the housing 118 and may be configured to substantially surround the heated end 106 of the aerosol source member 104, including the base material portion 110. Thus, the helical coil 128 in the illustrated configuration may define a substantially tubular configuration. In some configurations, the support cylinder 129 may also define a tubular configuration and may be configured to support the helical coil 128 so that it is close to but does not contact the base material portion 110. Therefore, the support cylinder 129 may contain a non-conductive material that is substantially permeable to the oscillating magnetic field generated by the helical coil 128. In various configurations, the helical coil 128 may be embedded within the support cylinder 129 or otherwise connected. In the illustrated configuration, the helical coil 128 is engaged with the outer surface of the support cylinder 129. However, in other configurations, the coil may be located on the inner surface of the support cylinder, completely embedded within the support cylinder, or have some other configuration.

[0063] As shown in the figure, the intake end 108 of the aerosol source member 104 in some implementations may include a filter 114, which may be made from, for example, cellulose acetate or polypropylene material. In various implementations, the filter 114 may enhance the structural integrity of the intake end 108 of the aerosol source member 100 and / or provide filtration capacity if desired and / or provide resistance to suction. For example, an article according to the present invention can exhibit a water pressure drop of about 50 to about 250 mm with an airflow of 17.5 cc / second. In further implementations, the pressure drop may be about 60 mm to about 180 mm or about 70 mm to about 150 mm. The pressure drop value may be measured using a Filtrona Filter Test Station (CTS series) available from Filtrona Instruments and Automation Ltd, or a Quality Test Module (QTM) available from Cerulean Division of Molins, PLC. The thickness of the filter along the length of the intake end of the aerosol source component can vary, such as approximately 2 mm to 20 mm, approximately 5 mm to 20 mm, or approximately 10 mm to 15 mm. In some implementations, the filter may comprise separate segments. For example, some implementations may include a segment that provides filtration, a segment that provides draw resistance, a hollow segment that provides space for the aerosol to cool, a segment that enhances structural integrity, other filter segments, or any one or any combination of the above.

[0064] In various implementation configurations, other components may be present between the substrate portion 110 and the mouthpiece end 108 of the aerosol source member 104, and the mouthpiece end 108 may include a filter 114. For example, in some implementation configurations, one or any combination of the following may be placed between the substrate portion and the mouthpiece end: an air gap; a phase change material for cooling air; a flavor release medium; ion exchange fibers capable of selective chemiadsorption; aerogel particles as a filter medium; and other suitable materials.

[0065] As described above, various implementations of this disclosure use an induction heating device to heat a portion of an aerosol source member, such as a substrate portion of an aerosol source member. The induction heating device may comprise at least one resonant transmitter and at least one resonant receiver (hereinafter also referred to as a susceptor, or more specifically, a plurality of susceptor particles). In various implementations, the resonant transmitter may be located in a control body, and the plurality of susceptor particles may be located in an aerosol source member. Examples of additional possible components that may be included are described in U.S. Patent Application No. 15 / 799,365, filed on 31 October 2017, titled "Induction Heated Aerosol Delivery Device," which is incorporated herein by reference in its entirety.

[0066] Referring back to Figure 3, the control body of the illustrated implementation configuration 102 may comprise a housing 118 including an opening 119 defined at its engagement end, a flow sensor 120 (e.g., a smoke sensor or a pressure switch), control components 122 (e.g., a microprocessor, individually or as part of a microcontroller, a printed circuit board (PCB) including a microprocessor and / or a microcontroller), a power source 124 (e.g., a battery which may be rechargeable, and / or a rechargeable supercapacitor), and an end cap which may include an indicator 126 (e.g., a light-emitting diode (LED)).

[0067] Examples of possible power sources are described in U.S. Patent No. 9,484,155 by Peckerar et al. and U.S. Patent Application Publication No. 2017 / 0112191, filed October 21, 2015, the entirety of each disclosure of which is incorporated herein by reference. With respect to the flow sensor 120, typical current regulating components and other current control components, including various microcontrollers, sensors and switches for aerosol delivery devices, are described in U.S. Patent No. 4,735,217 by Gerth et al., U.S. Patents No. 4,922,901, 4,947,874 and 4,947,875 by Brooks et al., U.S. Patent No. 5,372,148 by McCafferty et al., U.S. Patent No. 6,040,560 by Fleischhauer et al., U.S. Patent No. 7,040,314 by Nguyen et al., and U.S. Patent No. 8,205,622 by Pan, all of which are incorporated herein by reference. The control scheme described in U.S. Patent No. 9,423,152 by Ampolini et al., also incorporated herein by reference, is also referenced. In one implementation, the indicator 126 may comprise one or more light-emitting diodes, quantum dot-based light-emitting diodes, and the like. In some implementations, the indicator 126 communicates with the control component 122 and, for example, when connected to the control body 102, may light up as detected by the flow sensor 120 when the user inhales the aerosol source member 104.

[0068] In some implementations, the aerosol delivery device may include input elements (which may replace or complement airflow or pressure sensors). In various implementations, the inputs may be included to allow a user to control the device's functions and / or output information to the user. Any component or combination of components may be used as inputs to control the device's functions. For example, one or more push buttons may be used, as described in Worm et al., U.S. Patent Application Publication 2015 / 0245658, which is incorporated herein by reference in its entirety. Similarly, a touchscreen may be used, as described in Sears et al., U.S. Patent Application Publication 2016 / 0262454, which is incorporated herein by reference in its entirety. As a further example, a component adapted to gesture recognition based on specific movements of the aerosol delivery device may be used as an input. For example, see Henry et al., U.S. Patent Application Publication 2016 / 0158782, which is incorporated herein by reference in its entirety. As yet another example, a capacitive sensor may be implemented in an aerosol delivery device, allowing the user to provide input by touching the surface of the device on which the capacitive sensor is implemented.

[0069] Further components may be used in the aerosol delivery apparatus of this disclosure. For example, U.S. Patent No. 5,154,192 by Sprinkel et al. discloses an indicator for smoking products; U.S. Patent No. 5,261,424 by Sprinkel, Jr. discloses a piezoelectric sensor that may be associated with the mouthpiece end of a device for detecting the movement of a user's lips associated with inhalation and subsequently causing heating of the heating device; U.S. Patent No. 5,372,148 by McCafferty et al. discloses a smoke inhalation sensor for controlling the flow of energy to a heating load array in response to a pressure drop through a mouthpiece; U.S. Patent No. 5,967,148 by Harris et al. discloses a container in a smoking device including a discriminator for detecting non-uniformity of the infrared transmittance of an inserted component and a controller for executing a detection routine when the component is inserted into the container; U.S. Patent No. 6,040,560 by Fleischhauer et al. describes a defined, viable power cycle having multiple differential phases; and U.S. Patent No. 5,934,289 by Watkins et al. This publication discloses photonic optronic components; U.S. Patent No. 5,954,979 by Counts et al. discloses means for changing the draw resistance through a smoking device; U.S. Patent No. 6,803,545 by Blake et al. discloses specific battery configurations for use in a smoking device; U.S. Patent No. 7,293,565 by Griffen et al. disclose various charging systems for use with a smoking device; U.S. Patent No. 8,402,976 by Fernando et al. discloses computer interface means for a smoking device to facilitate charging and enable computer control of the device; U.S. Patent No. 8,689,804 by Fernando et al. discloses identification systems for smoking devices; and PCT International Publication No. 2010 / 003480 by Flick discloses a fluid flow sensing system indicating smoke inhalation using an aerosol generation system. All of the aforementioned disclosures are incorporated herein by reference in their entirety.

[0070] Other suitable current-actuated / deactivation mechanisms may include temperature-actuated on / off switches or lip pressure-actuated switches, or touch sensors (e.g., capacitive touch sensors) configured to sense contact between a user (e.g., the user's mouth or finger) and one or more surfaces of the aerosol delivery device. An exemplary mechanism capable of providing such fume-absorbing activation capability includes the Model 163PC01D36 silicon sensor manufactured by the MicroSwitch division of Honeywell, Inc. in Freeport, Illinois. Using such a sensor, the heating element can be rapidly activated by the pressure change when the consumer inhales the device. Furthermore, a flow sensing device, such as one using the principle of hot-wire anemometry, may be used to energize the heating assembly sufficiently quickly after sensing the change in airflow. Additional fume-absorbing switches that may be used are pressure difference switches such as Model No. MPL-502-V, range A, manufactured by Micro Pneumatic Logic, Inc. in Fort Lauderdale, Florida. Another suitable fume-absorbing mechanism is a pressure transducer (e.g., comprising an amplifier or gain stage) coupled to a comparator for detecting a given threshold pressure. Another preferred fume-absorbing actuation mechanism is a vane deflected by airflow, the movement of which is detected by motion sensing means. Yet another preferred actuation mechanism is a piezoelectric switch. Also useful is the suitably connected Honeywell MicroSwitch Microbridge Airflow Sensor, part number AWM 2100V, manufactured by the MicroSwitch Division of Honeywell, Inc., Freeport, Illinois. Yet another example of a demand-operated electric switch that can be used in the heating circuit of this disclosure is described in U.S. Patent No. 4,735,217 by Gerth et al., which is incorporated in whole herein by reference. Other preferred differential switches, analog pressure sensors, flow sensors, etc., will be apparent to those skilled in the art who are familiar with this disclosure. In some implementations, the housing may include a pressure-sensing tube or other passage providing a fluid connection between the fume-absorbing actuation switch and the aerosol source member so that pressure changes during suction are easily identified by the switch.Other exemplary fume extraction devices that may be useful in accordance with this disclosure are disclosed in U.S. Patent Nos. 4,922,901, 4,947,874, and 4,947,874 by Brooks et al., U.S. Patent No. 5,372,148 by McCafferty et al., U.S. Patent No. 6,040,560 by Fleischhauer et al., U.S. Patent No. 7,040,314 by Nguyen et al., and U.S. Patent No. 8,205,622 by Pan, all of which are incorporated herein by reference in their entirety.

[0071] Examples of components and disclosed materials or additional components relating to electronic aerosol delivery articles that may be used in this article include U.S. Patent No. 4,735,217 by Gerth et al., U.S. Patent No. 5,249,586 by Morgan et al., U.S. Patent No. 5,666,977 by Higgins et al., U.S. Patent No. 6,053,176 by Adams et al., U.S. Patent No. 6,164,287 by White, U.S. Patent No. 6,196,218 by Voges, U.S. Patent No. 6,810,883 by Felter et al., U.S. Patent No. 6,854,461 by Nichols, U.S. Patent No. 7,832,410 by Hon, U.S. Patent No. 7,513,253 by Kobayashi, U.S. Patent No. 7,896,006 by Hamano, U.S. Patent No. 6,772,756 by Shayan, and U.S. Patent No. 6,772,756 by Hon. U.S. Patent Nos. 8,156,944 and 8,375,957, U.S. Patent No. 8,794,231 by Thorens et al., U.S. Patent No. 8,851,083 by Oglesby et al., U.S. Patent Nos. 8,915,254 and 8,925,555 by Monsees et al., U.S. Patent No. 9,220,302 by DePiano et al., and U.S. Patent Publication No. 2006 / 0196518 by Hon. References include the specification of [Name of Patent Application] and U.S. Patent Application Publication No. 2009 / 0188490, U.S. Patent Application Publication No. 2010 / 0024834 by Oglesby et al., U.S. Patent Application Publication No. 2010 / 0307518 by Wang, PCT International Publication No. 2010 / 091593 by Hon, and PCT International Publication No. 2013 / 089551 by Foo, each of which is incorporated herein by reference in its entirety. Furthermore, U.S. Patent Application Publication No. 2017 / 0099877 discloses an aerosol delivery device and a capsule that may be included in a fob-shaped configuration for an aerosol delivery device, which is incorporated herein by reference in its entirety. In various implementations, various materials disclosed in the aforementioned documents may be incorporated into the device, and each of the aforementioned disclosures is incorporated herein by reference in its entirety.

[0072] Figure 4 shows a schematic cross-sectional view of a portion of the substrate portion 110 of the aerosol source member 104 according to an exemplary implementation of the present disclosure. In the illustrated implementation, the substrate portion 110 of the aerosol source member 104 includes a substrate material 148 comprising a core portion 150, a peripheral portion 152, and a cover layer 154, and a plurality of susceptor particles 160 are dispersed within the substrate material 148. In the illustrated implementation, the substrate material 148 comprises a single layer including the core portion 150 and the peripheral portion 152. However, in other implementations (as will be described in more detail below), the substrate portion 110 may comprise a single layer comprising the core portion and a separate layer comprising the peripheral portion. In various implementations, the plurality of susceptor particles constitute a resonant receiving portion of an induction heating device. In various implementations, the substrate material 148 of the illustrated implementation may include tobacco material. For example, in some implementations, the tobacco material may include tobacco-containing beads, tobacco powder, tobacco fragments, tobacco pulp, reconstituted tobacco material, cast tobacco sheets or combinations thereof, and / or mixtures of finely ground tobacco, tobacco extract, spray-dried tobacco extract, or other tobacco forms mixed with any inorganic material (such as calcium carbonate), rice flour, corn flour, carboxymethylcellulose (CMC), guar gum, alginate, any flavoring and aerosol-forming materials to form a substantially solid or moldable (e.g., extrudeable) substrate.

[0073] In the illustrated configuration, the core portion 150 is positioned approximately radially at the center of the base material portion 110, and the surrounding portion 152 is positioned around the core portion 150. In various configurations, the core portion 150 has a diameter smaller than the total diameter of the base material portion 110 and can be expressed as a function of the total diameter of the base material portion. For example, in some configurations, the diameter of the core portion may be about 1 / 8 to 3 / 4 of the total diameter of the base material portion, and in some configurations, it may be about 1 / 4 to 1 / 2 of the total diameter of the base material portion of the aerosol source member. Similarly, the surrounding portion 152 has a diameter smaller than the total diameter of the base material portion and can be expressed as a function of the diameter of the core portion. For example, in some configurations, the diameter of the surrounding portion may be about 1 and 1 / 2 to 8 times the diameter of the core portion, and in some configurations, it may be about 2 to 4 times the diameter of the core portion. In one example, the diameter of the core portion may be about 2 mm, and the diameter of the surrounding portion may be within a broad range of about 6.5 mm to about 12 mm.

[0074] In various implementation configurations, the core portion 150 of the substrate portion 110 may define a first susceptor particle distribution density, which generally has a relative concentration of susceptor particles 160 within the core portion 150. Similarly, the surrounding portion 152 of the substrate portion 110 may define a second susceptor particle distribution density, which generally has a relative concentration of susceptor particles 160 within the surrounding portion 152. In various implementation configurations, the distribution density of susceptor particles can be defined in various different ways. For example, in some implementation configurations, the first distribution density can be defined as the volume of susceptor particles within the core portion as a function of the total volume of the core portion. Similarly, the second distribution density can be defined as the volume of susceptor particles within the surrounding portion as a function of the total volume of the surrounding portion. In other configurations, the first distribution density may be defined as the volume of susceptor particles within the core portion as a function of the total volume of the substrate portion. Similarly, the second distribution density may be defined as the volume of susceptor particles within the periphery portion as a function of the total volume of the substrate portion. In other configurations, the first distribution density may be defined as the area of ​​susceptor particles within the core portion as a function of the total area of ​​the core portion across the cross-section of the substrate portion. Similarly, the second distribution density may be defined as the area of ​​susceptor particles within the periphery portion as a function of the total area of ​​the periphery portion across the same cross-section of the substrate portion. In yet another configuration where the susceptor particles are substantially the same size or within the same particle size range, the first distribution density may be defined as the number of susceptor particles within the core portion as a function of the volume of the core portion. Similarly, the second distribution density may be defined as the number of susceptor particles within the periphery portion as a function of the volume of the periphery portion.

[0075] Regardless of how the distribution density is calculated, this disclosure provides that the first distribution density (distribution density of susceptor particles in the core portion) is greater than the second distribution density (distribution density of susceptor particles in the surrounding portion). Thus, the concentration of susceptor particles in the core portion is higher than in the surrounding portion. Note that in some implementations, the distribution density in the surrounding portion may be substantially zero, and therefore the core portion may contain multiple susceptor particles, while the surrounding portion does not need to contain multiple susceptor particles. In one implementation, for example, the volume of susceptor particles in the core portion may be within a broad range of about 4% to about 8% of the total volume of the substrate portion (including or excluding the cover portion), and the volume of susceptor particles in the surrounding portion may be within a range of 0% to less than 4% of the total volume of the substrate portion (including or excluding the cover portion).

[0076] In some implementations, the base material may comprise an extruded tobacco structure. For example, in some implementations, the extruded structure may comprise, or be essentially composed of, tobacco, tobacco-related materials, glycerin, water, a binder material, and / or one or more fillers and curing agents such as calcium carbonate, rice flour, or corn flour. In various implementations, suitable binder materials may include alginates such as ammonium alginate, propylene glycol alginate, potassium alginate, and sodium alginate. Alginates, particularly high-viscosity alginates, may be used in combination with controlled levels of free calcium ions. Other suitable binder materials include hydroxypropylcellulose such as Klucel H from Aqualon Co.; hydroxypropylmethylcellulose such as Methocel K4MS from The Dow Chemical Co.; hydroxyethylcellulose such as Natrosol 250 MRCS from Aqualon Co.; microcrystalline cellulose such as Avicel from FMC; methylcellulose such as Methocel A4M from The Dow Chemical Co.; and sodium carboxymethylcellulose such as CMC 7HF and CMC 7H4F from Hercules Inc. Further possible binder materials include starch (e.g., corn starch), guar gum, carrageenan, locust bean gum, pectin, and xanthan gum. In some implementations, combinations or blends of two or more binder materials may be used. Other examples of binder materials are described, for example, in U.S. Patent No. 5,101,839 by Jakob et al. and U.S. Patent No. 4,924,887 by Raker et al., which are incorporated herein in their entirety by reference, respectively. In some implementations, the aerosol-forming material may be provided as part of a binder material (e.g., propylene glycol alginate). Furthermore, in some implementations, the binder material may include nanocellulose derived from tobacco or other biomass.

[0077] In some implementations, the base material may include an extruded material, as described in Stone et al., U.S. Patent Application Publication No. 2012 / 0042885, which is incorporated herein by reference in its entirety. In yet another implementation, the base material may include an extruded structure and / or base formed from marmelized and / or unmarmelized tobacco. Marmelized tobacco is known, for example, from Banerjee et al., U.S. Patent No. 5,105,831, which is incorporated herein by reference in its entirety. Marmelized tobacco, together with the binders and / or flavorings described herein, contains in powder form about 20 to about 50 percent (by weight) of a tobacco blend, along with glycerol (about 20 to about 30 percent by weight) and calcium carbonate (generally about 10 to about 60 percent by weight, often about 40 to about 60 percent by weight). In various implementations, the extruded material may have one or more longitudinal openings. In other implementations, the extruded material may have two or more sectors, such as an extruded product having a wagon wheel-shaped cross-section.

[0078] Additionally or alternatively, the base material may include, or essentially consist of, tobacco, glycerin, water, and / or binder materials, and further configured to substantially maintain its structure throughout the aerosol-generating process. That is, the base material may be configured to substantially maintain its shape throughout the aerosol-generating process (e.g., the base material does not deform continuously under applied shear stress). Such exemplary base materials may contain liquid and / or some water content, but the base material may remain substantially solid throughout the aerosol-generating process and substantially maintain its structural integrity throughout the aerosol-generating process. Examples of tobacco and / or tobacco-related materials that may be suitable for substantially solid substrate materials are described in the U.S. Patent Application Publication No. 2015 / 0157052 by Ademe et al., U.S. Patent Application Publication No. 2015 / 0335070 by Sears et al., U.S. Patent No. 6,204,287 by White, and U.S. Patent No. 5,060,676 by Hearn et al., which are incorporated herein by reference in their entirety.

[0079] In other implementations, the base material may include a blend of flavorful aromatic tobacco in cut-filler form. In yet another implementation, the base material may include reconstituted tobacco material, such as that described in U.S. Patent No. 4,807,809, U.S. Patent No. 4,889,143, and U.S. Patent No. 5,025,814, both of which are incorporated herein by reference in their entirety. Furthermore, the reconstituted tobacco material may include reconstituted tobacco paper for the type of cigarette described in Chemical and Biological Studies on New Cigarette Prototypes that Heat Instead of Burn Tobacco, RJ Reynolds Tobacco Company Monograph (1988), whose entirety is incorporated herein by reference. For example, the reconstituted tobacco material may include a sheet-like material containing tobacco and / or tobacco-related material. Thus, in some implementations, the base material may be formed from a rolled reconstituted tobacco material. In another implementation, the base material may be formed from fine fragments, shards, etc., of the reconstituted tobacco material. In another implementation, the tobacco sheet may comprise a crimped sheet of reconstructed tobacco material. In some implementations, the substrate material may comprise overlapping layers (e.g., a gathered web) which may or may not include thermally conductive components. An example of a substrate material comprising a series of overlapping layers (e.g., a gathered web) of an initial substrate sheet formed of a fibrous filler material, an aerosol-forming material, and multiple thermally conductive components is described in U.S. Patent Application No. 15 / 905,320, filed on 26 February 2018, titled "Heat Conducting Substrate For Electrically Heated Aerosol Delivery Device," which is incorporated herein by reference in its entirety.

[0080] In some implementations, the base material may comprise a plurality of microcapsules, beads, granules, and / or similar having tobacco-related materials. For example, a typical microcapsule may be substantially spherical in shape and may have an outer cover or shell containing a liquid central region such as a tobacco-derived extract. In some implementations, the base material may comprise a plurality of microcapsules, each formed in a hollow cylindrical shape. In some implementations, the base material may comprise a binder material configured to maintain the structural shape and / or integrity of the plurality of microcapsules formed in a hollow cylindrical shape.

[0081] The tobacco used in one or more of the base materials may include, or may be derived from, yellow tobacco, Burley tobacco, Oriental tobacco, Maryland tobacco, dark tobacco, dark tumbled tobacco, and Rustika tobacco, as well as other rare or specialty tobaccos, or blends thereof. Various representative tobacco types, tobacco processing types, and tobacco blend types are incorporated herein by reference in their entirety by reference in U.S. Patent No. 4,836,224 by Lawson et al., U.S. Patent No. 4,924,888 by Perfetti et al., U.S. Patent No. 5,056,537 by Brown et al., U.S. Patent No. 5,159,942 by Brinkley et al., U.S. Patent No. 5,220,930 by Gentry, U.S. Patent No. 5,360,023 by Blakley et al., and U.S. Patent No. 5,360,023 by Shafer et al. This is described in Japanese Patent No. 6,701,936, U.S. Patent No. 6,730,832 by Dominguez et al., U.S. Patent No. 7,011,096 by Li et al., U.S. Patent No. 7,017,585 by Li et al., U.S. Patent No. 7,025,066 by Lawson et al., U.S. Patent Application Publication No. 2004 / 0255965 by Perfetti et al., PCT International Publication No. 02 / 37990 by Bereman, and Fund.Appl.Toxicol., 39, pp. 11-17 (1997) by Bombick et al.

[0082] In various implementation configurations, the substrate material can take on various structures based on the varying amounts of material used therein. For example, a sample substrate material may contain up to approximately 98% by weight, up to approximately 95% by weight, or up to approximately 90% by weight of tobacco and / or tobacco-related materials. The sample substrate material may also contain up to approximately 25% by weight, up to approximately 20% by weight, or up to approximately 15% by weight of water, particularly approximately 2% to approximately 25% by weight, up to approximately 5% to approximately 20% by weight, or up to approximately 7% to approximately 15% by weight of water. Flavorings, etc. (including drugs such as nicotine) may constitute up to approximately 10% by weight, up to approximately 8% by weight, or up to approximately 5% by weight of the aerosol delivery components.

[0083] In some implementations, flame-retardant / burn-retardant materials and other additives may be included in the base material, and may include organophosphorus compounds, borax, hydrated alumina, graphite, potassium tripolyphosphate, dipentaerythritol, pentaerythritol, and polyols. Others such as nitrogen phosphonates, monoammonium phosphate, ammonium polyphosphate, ammonium bromide, ammonium borate, ammonium ethanol borate, ammonium sulfamate, halogenated organic compounds, thiourea, and antimony oxide are also suitable but not preferred agents. In each embodiment of flame-retardant, burn-retardant, and / or char-retardant materials used in the base material and / or other components (whether alone or in combination with each other and / or other materials), the desired properties are provided most preferably without undesirable gas release or molten behavior. Other examples include diammonium phosphate and / or other salts configured to help prevent ignition, thermal decomposition, combustion, and / or charring of the base material by a heat source. Various forms and methods for incorporating tobacco into smoking products, in particular smoking products designed to intentionally prevent substantially any tobacco within the product from burning, are described in U.S. Patent No. 4,947,874 by Brooks et al., U.S. Patent No. 7,647,932 by Cantrell et al., U.S. Patent No. 8,079,371 by Robinson et al., U.S. Patent No. 7,290,549 by Banerjee et al., and U.S. Patent Application Publication No. 2007 / 0215167 by Crooks et al., whose entire disclosure is incorporated herein by reference.

[0084] In other implementations of this disclosure, the base material may also incorporate tobacco additives of the types conventionally used in the manufacture of tobacco products. These additives may include materials of the type used to enhance the flavor and aroma of tobacco used in the manufacture of cigars, cigarettes, pipes, etc. For example, these additives may include various cigarette flavoring components and / or top-layer components. See, for example, U.S. Patent No. 3,419,015 by Wochnowski, U.S. Patent No. 4,054,145 by Berndt et al., U.S. Patent No. 4,887,619 by Burcham, Jr. et al., U.S. Patent No. 5,022,416 by Watson, U.S. Patent No. 5,103,842 by Strang et al., and U.S. Patent No. 5,711,320 by Martin, whose entire disclosures are incorporated herein by reference. Preferred flavoring materials may include water, sugars and syrups (e.g., sucrose, glucose and high-fructose corn syrup), humectants (e.g., glycerin or propylene glycol), and flavorings (e.g., cocoa and licorice). These additives may also include top-layer materials (e.g., flavorings such as menthol). See, for example, U.S. Patent No. 4,449,541 by Mays et al., whose entire disclosure is incorporated herein by reference. Additional materials that may be added include those disclosed in U.S. Patent No. 4,830,028 by Lawson et al. and U.S. Patent No. 8,186,360 by Marshall et al., whose entire disclosure is incorporated herein by reference.

[0085] A wide variety of flavorings or materials that alter the sensory or sensory-stimulating properties or characteristics of the mainstream aerosol of a smoking product may be suitable for use. In some implementations, such flavorings may be supplied from sources other than tobacco and may be natural or artificial in nature. For example, some flavorings may be applied to or incorporated into the base material and / or the area of ​​the smoking product where the aerosol is produced. In some implementations, such agents may be supplied directly to the heating cavity or area adjacent to the heat source, or provided together with the base material. Exemplary flavorings may include, for example, vanillin, ethyl vanillin, cream, tea, coffee, fruit (e.g., apple, cherry, strawberry, peach, and citrus flavors including lime and lemon), maple, menthol, mint, peppermint, spearmint, wintergreen, nutmeg, clove, lavender, cardamom, ginger, honey, anise, sage, cinnamon, sandalwood, jasmine, cascarilla, cocoa, licorice, and flavorings and flavoring packages of types and characteristics conventionally used in cigarette, cigar, and pipe tobacco flavorings. Syrups such as high-fructose corn syrup may also be suitable for use.

[0086] Flavorings may also contain acidic or basic properties (e.g., organic acids such as levulinic acid, succinic acid, pyruvic acid, and benzoic acid). In some implementations, flavorings may be combined with elements of the base material, if desired. Suitable exemplary plant-derived compositions are disclosed in Dube et al., U.S. Patent No. 9,107,453 and U.S. Patent Application Publication No. 2012 / 0152265, both of which are incorporated herein by reference in their entirety. Any of the materials that may be useful in combination with the tobacco material to affect its sensory properties, including sensory stimuli properties as described herein, may be combined with the base material. In particular, organic acids may be incorporated into the base material to affect the flavor, sensory, or sensory stimuli properties of drugs such as nicotine, which may be combined with the base material. For example, organic acids such as levulinic acid, lactic acid, and pyruvic acid may be included in the base material together with nicotine in amounts up to equimolar (based on the total organic acid content). Any combination of organic acids may be preferred. For example, in some implementations, the base material may contain about 0.1 to about 0.5 moles of levulinic acid, about 0.1 to about 0.5 moles of pyruvate, about 0.1 to about 0.5 moles of lactic acid, or a combination thereof, per mole of nicotine, up to a concentration where the total amount of organic acids present is equimolar to the total amount of nicotine present in the base material. Various additional examples of organic acids that may be used to produce the base material are described in U.S. Patent Application Publication No. 2015 / 0344456 by Dull et al., which is incorporated in whole herein by reference.

[0087] The selection of such additional components may be variable based on factors such as the desired sensory characteristics of the smoking product, and this disclosure is intended to encompass any such additional components that are readily apparent to those skilled in the art of tobacco and tobacco-related or tobacco-derived products. See, in their entirety, Gutcho, Tobacco Flavoring Substances and Methods, Noyes Data Corp. (1972) and Leffingwell et al., Tobacco Flavoring for Smoking Products (1972), which are incorporated herein by reference.

[0088] In some implementations, the base material may include other materials having various unique characteristics or properties. For example, the base material may include plasticizing materials in the form of rayon or regenerated cellulose. Another example that may be suitable is viscose (commercially available as VISIL(R)), a regenerated cellulose product incorporating silica. Some carbon fibers may contain at least 95 percent or more carbon. Similarly, natural cellulose fibers such as cotton may be suitable, and natural cellulose fibers such as cotton may be impregnated with silica, carbon or metal particles, or treated with silica, carbon or metal particles to enhance flame retardancy and, in particular, minimize the release of any undesirable gas-releasing components that would adversely affect the flavor (in particular, minimize the possibility of any harmful gas-releasing products). To provide the desired flame retardancy, it may be possible to treat cotton with, for example, boric acid or various organophosphate compounds by immersion, spraying, or other techniques known in the art. These fibers may also be treated with organic or metal nanoparticles to impart desired flame-retardant properties without undesirable gas release or melting behavior (e.g., coating by immersion, spraying, or vapor deposition, injection, or both).

[0089] As described above, the base material may also include an aerosol-forming material, such as an aerosol precursor composition. In some implementations, the aerosol precursor composition may include one or more humectants, such as propylene glycol and glycerin. In various implementations, the amount of aerosol precursor composition used in the aerosol delivery device may be such that the aerosol delivery device exhibits acceptable sensory and sensory stimulation characteristics as well as desirable performance characteristics. For example, in some implementations, the aerosol precursor composition (e.g., glycerin and / or propylene glycol) can provide the generation of a visible mainstream aerosol that in many respects resembles the appearance of cigarette smoke. For example, the amount of aerosol precursor composition incorporated into the base material of a smoking product may be in the range of about 4.5 grams or less, 3.5 grams or less, about 3 grams or less, about 2.5 grams or less, about 2 grams or less, about 1.5 grams or less, about 1 gram or less, or about 0.5 grams or less. However, it should be noted that values ​​outside these ranges are possible in other implementations.

[0090] Representative types of additional aerosol precursor compositions are described in U.S. Patent No. 4,793,365 by Sensabaugh, Jr. et al., U.S. Patent No. 5,101,839 by Jakob et al., PCT International Publication No. 98 / 57556 by Biggs et al., and Chemical and Biological Studies on New Cigarette Prototypes that Heat Instead of Burn Tobacco, RJ Reynolds Tobacco Company Monograph (1988), the disclosure of which is incorporated herein by reference. In some embodiments, the aerosol source component may produce a visible aerosol when sufficiently heated (and cooled by air as necessary), and the aerosol source component may produce a “smoky” aerosol. In other embodiments, the aerosol source component may produce an aerosol that is substantially invisible but is perceived as present by other properties such as flavor or texture. Thus, the properties of the aerosol produced may vary depending on the specific components of the aerosol delivery component. In various implementations, the aerosol source component can be chemically simpler compared to the chemical properties of smoke produced by burning tobacco.

[0091] In some implementations, the aerosol precursor composition, also called the vapor precursor composition or "e-liquid," may contain a variety of components, including, for example, polyhydric alcohols (e.g., glycerin, propylene glycol, or mixtures thereof), nicotine, tobacco, tobacco extract, and / or flavorings. Several possible types of aerosol precursor components and formulations are described and characterized in U.S. Patent No. 7,217,320 by Robinson et al., U.S. Patent Publication No. 2013 / 0008457 by Zheng et al., U.S. Patent Publication No. 2013 / 0213417 by Chong et al., U.S. Patent Publication No. 2014 / 0060554 by Collett et al., U.S. Patent Publication No. 2015 / 0020823 by Lipowicz et al., and U.S. Patent Publication No. 2015 / 0020830 by Koller, as well as International Publication No. 2014 / 182736 by Bowen et al., and these disclosures are incorporated herein by reference. Other aerosol precursors that can be used include those incorporated into VUSE(R) products by RJReynolds Vapor Company, BLU(TM) products by Fontem Ventures BV, MISTIC MENTHOL products by Mistic Ecigs, MARK TEN products by Nu Mark LLC, JUUL products by Juul Labs, Inc., and VYPE products by CN Creative Ltd. Also possible is the so-called "smoke juice" for e-cigarettes, available from Johnson Creek Enterprises LLC.Further examples of possible aerosol precursor compositions are sold under the trademark names BLACK NOTE, COSMIC FOG, THE MILKMAN E-LIQUID, FIVE PAWNS, THE VAPOR CHEF, VAPE WILD, BOOSTED, THE STEAM FACTORY, MECH SAUCE, CASEY JONES MAINLINE RESERVE, MITTEN VAPORS, DR.CRIMMY'S V-LIQUID, SMILEY E LIQUID, BEANTOWN VAPOR, CUTTWOOD, CYCLOPS VAPOR, SICBOY, GOOD LIFE VAPOR, TELEOS, PINUP VAPORS, SPACE JAM, MT.BAKER VAPOR, and JIMMY THE JUICE MAN.

[0092] The amount of aerosol precursor incorporated into the aerosol source component is such that the aerosol generating component provides an acceptable sensation and desirable performance characteristics. For example, it is desirable to use a sufficient amount of aerosol-forming material to generate a visible mainstream aerosol that in many respects resembles the appearance of cigarette smoke. The amount of aerosol precursor in the aerosol generating system may be determined depending on factors such as the desired number of smoke inhalations per aerosol generating component. In one or more embodiments, the aerosol precursor composition may include about 0.5 ml or more, about 1 ml or more, about 2 ml or more, about 5 ml or more, or about 10 ml or more.

[0093] Referring back to Figure 4, as described above, the core portion 150 and the surrounding portion 152 include a plurality of susceptor particles 160 comprising a resonant receiving section of the induction heating device in the illustrated configuration. In various configurations, the plurality of susceptor particles 160 may have various shapes, sizes, and materials that can be combined within the same substrate portion in some configurations. For example, in some configurations, one or more of the plurality of susceptor particles 160 may have a substantially spherical, flaky, substantially cubic, irregular shape (e.g., a shape with one or more (e.g., multiple) sides having different dimensions) or any combination thereof. In various configurations, the plurality of susceptor particles 160 may include, but are not limited to, ferromagnetic materials including cobalt, iron, nickel, zinc, manganese, and any combination thereof. In additional configurations, the plurality of susceptor particles 160 may include other porous metallic materials such as aluminum or stainless steel, as well as other materials including ceramic materials such as silicon carbide, carbon materials, and any combination of any of the above materials. In further implementations, the multiple susceptor particles may include other conductive materials, such as metals like copper, alloys of conductive materials, or other materials with one or more conductive materials embedded inside. In various implementations, the size of the porous susceptor particles can vary, but in some implementations, one or more of the multiple porous susceptor particles may have a diameter in a broad range of approximately 100 microns (0.1 mm) to approximately 2 mm, and in some implementations, one or more of the multiple porous susceptor particles may have a diameter in a broad range of approximately 0.5 mm to approximately 1.5 mm.

[0094] In the illustrated implementation, a change in current in the helical coil 128 (i.e., the resonant transmitter), induced by the control component 122 from the power source 124 (e.g., via a driver circuit), generates an alternating current electromagnetic field that penetrates multiple susceptor particles 160 (i.e., the resonant receiver), thereby generating electrical eddy currents within the susceptor particles 160. The alternating current electromagnetic field can be generated by inducing alternating current in the helical coil 128. As described above, in some implementations, the control component 122 may include an inverter or inverter circuit configured to convert the direct current supplied by the power source into alternating current supplied to the resonant transmitter.

[0095] Eddy currents flowing through the multiple susceptor particles 160 can generate heat through the Joule effect, and the amount of heat generated is proportional to the square of the current multiplied by the electrical resistance of the materials of the multiple susceptor particles 160. In implementations in which the multiple susceptor particles 160 include ferromagnetic material, heat may also be generated by magnetic hysteresis loss. Several factors, including but not limited to proximity to the helical coil 128, magnetic field distribution, electrical resistivity of the materials of the multiple susceptor particles 160, saturation magnetic flux density, skin effect or depth, hysteresis loss, magnetic susceptibility, magnetic permeability, and the dipole moment of the material, contribute to the temperature rise of the multiple susceptor particles 160.

[0096] In this regard, and as described above, both the multiple susceptor particles 160 and the helical coil 128 may contain conductive materials. For example, the helical coil 128 and / or the multiple susceptor particles 160 may contain a variety of conductive materials, including metals such as copper or aluminum, alloys of conductive materials (e.g., diamagnetic, paramagnetic, or ferromagnetic materials), or other materials such as ceramics or glass with one or more conductive materials embedded inside. In some implementations, the multiple susceptor particles may be coated with or otherwise contain a thermally conductive passivation layer (e.g., a thin layer of glass).

[0097] In some implementations, the multiple porous susceptor particles 160 contained in the aerosol source member 104 may be complemented by additional / alternative resonant receivers. For example, in some implementations, the control body 102 of the device 100 may include separate resonant receivers, such as one or more receiver prongs. Several examples of preferred components are described in U.S. Patent Application No. 15 / 799,365, filed on 31 October 2017, titled "Induction Heated Aerosol Delivery Device," which is incorporated herein by reference in its entirety.

[0098] Referring back to Figure 4, the substrate portion 110 in some mounting configurations may also include a cover layer 154 positioned around the peripheral portion 152. In the illustrated mounting configurations, the cover layer 154 comprises a foil sublayer 156 and a paper sublayer 158, with the paper sublayer 158 positioned around the foil sublayer 156. In some mounting configurations, the foil sublayer and the paper sublayer may comprise a single laminate. In some mounting configurations, the paper sublayer may comprise paper or other fibrous material, such as cellulose material. The paper sublayer material may also comprise at least one filler material embedded or dispersed within the fibrous material. In various mounting configurations, the filler material may be in the form of water-insoluble particles. Furthermore, the filler material may incorporate inorganic components. In various mounting configurations, the paper sublayer may be formed from multiple layers, such as an underlying bulk layer, and an on top layer, such as the wrapping paper typical in cigarettes. Such materials may include, for example, lightweight “rag fibers” such as flax, hemp, sisal, rice straw, and / or esparto. Various types of paper materials are described in U.S. Patent No. 5,105,838 by White et al., U.S. Patent No. 5,271,419 by Arzonico et al., U.S. Patent No. 5,220,930 by Gentry, U.S. Patent No. 6,908,874 by Woodhead et al., U.S. Patent No. 6,929,013 by Ashcraft et al., U.S. Patent No. 7,195,019 by Hancock et al., U.S. Patent No. 7,276,120 by Holmes, U.S. Patent No. 7,275,548 by Hancock et al., PCT International Publication No. 01 / 08514 by Fournier et al., and PCT International Publication No. 03 / 043450 by Hajaligol et al., which are incorporated herein by reference in their entirety. In some configurations, the paper material may include commercially available materials such as RJReynolds Tobacco Company grades 119, 170, 419, 453, 454, 456, 465, 466, 490, 525, 535, 557, 652, 664, 672, 676, and 680 from Schweitzer-Maudit International. In the illustrated configuration, the foil sublayer 152 includes a metallic foil material such as aluminum foil.However, in other mounting configurations, the foil sublayer may include, but is not limited to, other materials including copper, tin, gold, graphene, graphite, or other thermally conductive carbon-based materials and / or any combination thereof. While various thicknesses are possible, in some mounting configurations, the cover layer may have a thickness in a comprehensive range of approximately 1 mm to approximately 3 mm.

[0099] An alternative implementation of the present disclosure is shown in Figure 5. In particular, Figure 5 shows a schematic cross-sectional view of a portion of the substrate portion 210 of an aerosol source member according to another exemplary implementation of the present disclosure. In various implementations, an aerosol source member having the substrate portion 210 of Figure 5 may be used with various control bodies, such as the control bodies of Figures 1 to 3 and Figure 10. In the illustrated implementation, the substrate portion 210 of the aerosol source member comprises multiple layers. For example, in the illustrated implementation, the substrate portion 210 includes a first layer 235 comprising a core portion 250 and a second layer 245 comprising a peripheral portion 252. In the illustrated implementation, the first layer 235 is located approximately radially centered on the substrate portion 210, and the second layer 245 is located around the first layer 235. In some implementations, the first layer 235 has a diameter smaller than the total diameter of the substrate portion 210, and this diameter may be expressed as a function of the total diameter of the substrate portion. For example, in some implementations, the diameter of the core portion may be about 1 / 8 to 3 / 4 of the total diameter of the base material portion, and in some implementations, it may be about 1 / 4 to 1 / 2 of the total diameter of the base material portion of the aerosol source member. Similarly, the surrounding portion 152 has a smaller diameter than the total diameter of the base material portion, and this diameter can be expressed as a function of the diameter of the core portion. For example, in some implementations, the diameter of the surrounding portion may be about 1 and 1 / 2 to 8 times the diameter of the core portion, and in some implementations, it may be about 2 to 4 times the diameter of the core portion. In one example, the diameter of the core portion may be about 2 mm, and the diameter of the surrounding portion may be in a broad range of about 6.5 mm to about 12 mm.

[0100] In various implementations, a first layer 235 comprising a core portion 250 may define a first susceptor particle distribution density, which generally has a relative concentration of susceptor particles within the first layer 235. Similarly, a second layer 245 comprising a peripheral portion 252 may define a second susceptor particle distribution density, which generally has a relative concentration of susceptor particles within the second layer 245. In various implementations, the distribution density of susceptor particles can be defined in various different ways. For example, in some implementations, the first distribution density may be defined as the volume of susceptor particles within the first layer as a function of the total volume of the first layer. Similarly, the second distribution density may be defined as the volume of susceptor particles within the second layer as a function of the total volume of the second layer. In other implementations, the first distribution density may be defined as the volume of susceptor particles in the first layer as a function of the total volume of the substrate portion. Similarly, the second distribution density may be defined as the volume of susceptor particles in the second layer as a function of the total volume of the substrate portion. In other implementations, the first distribution density may be defined as the area of ​​susceptor particles in the first layer as a function of the total area of ​​the first layer across the cross-section of the substrate portion. Similarly, the second distribution density may be defined as the area of ​​susceptor particles in the second layer as a function of the total area of ​​the second layer across the same cross-section of the substrate portion. In yet another implementation where the susceptor particles are substantially the same size or within the same particle size range, the first distribution density may be defined as the number of susceptor particles in the first layer as a function of the volume of the first layer. Similarly, the second distribution density may be defined as the number of susceptor particles in the second layer as a function of the volume of the second layer.

[0101] Regardless of how the distribution density is calculated, this disclosure provides that the first distribution density (the distribution density of susceptor particles in the first layer comprising the core portion) is greater than the second distribution density (the distribution density of susceptor particles in the second layer comprising the surrounding portion). Thus, the concentration of susceptor particles in the core portion is higher than in the surrounding portion. Note that in the illustrated implementation, the susceptor particles 260 in the first layer 235 and the susceptor particles 262 in the second layer 245 contain substantially the same type of particles (e.g., substantially the same material). However, in other implementations, the type of susceptor particles in the first layer may differ from the type of susceptor particles in the second layer. Furthermore, in other implementations, the first layer may contain multiple susceptor particles, but the second layer does not need to contain multiple susceptor particles. In one implementation configuration, for example, the volume of susceptor particles in the first layer may be within a comprehensive range of approximately 4% to approximately 8% of the total volume of the substrate portion (including or excluding the cover portion), and the volume of susceptor particles in the second layer may be within a range of 0% to less than 4% of the total volume of the substrate portion (including or excluding the cover portion).

[0102] In the illustrated packaging configuration, the first layer 235 and / or the second layer 245 may include a base material. In some packaging configurations, the base material may comprise an extruded tobacco structure. For example, in some packaging configurations, the extruded structure may include, or be essentially composed of, tobacco, tobacco-related materials, glycerin, water, a binder material, and / or one or more fillers and curing agents such as calcium carbonate, rice flour, corn flour, etc. In various packaging configurations, suitable binder materials may include alginates such as ammonium alginate, propylene glycol alginate, potassium alginate, and sodium alginate. Alginates, particularly high-viscosity alginates, may be used in combination with controlled levels of free calcium ions. Other suitable binder materials include hydroxypropylcellulose such as Klucel H from Aqualon Co.; hydroxypropylmethylcellulose such as Methocel K4MS from The Dow Chemical Co.; hydroxyethylcellulose such as Natrosol 250 MRCS from Aqualon Co.; microcrystalline cellulose such as Avicel from FMC; methylcellulose such as Methocel A4M from The Dow Chemical Co.; and sodium carboxymethylcellulose such as CMC 7HF and CMC 7H4F from Hercules Inc. Further possible binder materials include starch (e.g., corn starch), guar gum, carrageenan, locust bean gum, pectin, and xanthan gum. In some implementations, combinations or blends of two or more binder materials may be used. Other examples of binder materials are described, for example, in U.S. Patent No. 5,101,839 by Jakob et al. and U.S. Patent No. 4,924,887 by Raker et al., which are incorporated herein in their entirety by reference, respectively. In some implementations, the aerosol-forming material may be provided as part of a binder material (e.g., propylene glycol alginate). Furthermore, in some implementations, the binder material may include nanocellulose derived from tobacco or other biomass.

[0103] In some implementations, the base material may include an extruded material, as described in Stone et al., U.S. Patent Application Publication No. 2012 / 0042885, which is incorporated herein by reference in its entirety. In yet another implementation, the base material may include an extruded structure and / or base formed from marmelized and / or unmarmelized tobacco. Marmelized tobacco is known, for example, from Banerjee et al., U.S. Patent No. 5,105,831, which is incorporated herein by reference in its entirety. Marmelized tobacco, together with the binders and / or flavorings described herein, contains in powder form about 20 to about 50 percent (by weight) of a tobacco blend, along with glycerol (about 20 to about 30 percent by weight) and calcium carbonate (generally about 10 to about 60 percent by weight, often about 40 to about 60 percent by weight). In various implementations, the extruded material may have one or more longitudinal openings. In other implementations, the extruded material may have two or more sectors, such as an extruded product having a wagon wheel-shaped cross-section.

[0104] Additionally or alternatively, the base material may include, or essentially consist of, tobacco, glycerin, water, and / or binder materials, and further configured to substantially maintain its structure throughout the aerosol-generating process. That is, the base material may be configured to substantially maintain its shape throughout the aerosol-generating process (e.g., the base material does not deform continuously under applied shear stress). Such exemplary base materials may contain liquid and / or some water content, but the base material may remain substantially solid throughout the aerosol-generating process and substantially maintain its structural integrity throughout the aerosol-generating process. Examples of tobacco and / or tobacco-related materials that may be suitable for substantially solid substrate materials are described in the U.S. Patent Application Publication No. 2015 / 0157052 by Ademe et al., U.S. Patent Application Publication No. 2015 / 0335070 by Sears et al., U.S. Patent No. 6,204,287 by White, and U.S. Patent No. 5,060,676 by Hearn et al., which are incorporated herein by reference in their entirety.

[0105] In other implementations, the base material may include a blend of flavorful aromatic tobacco in cut-filler form. In yet another implementation, the base material may include reconstituted tobacco material, such as that described in U.S. Patent No. 4,807,809, U.S. Patent No. 4,889,143, and U.S. Patent No. 5,025,814, both of which are incorporated herein by reference in their entirety. Furthermore, the reconstituted tobacco material may include reconstituted tobacco paper for the type of cigarette described in Chemical and Biological Studies on New Cigarette Prototypes that Heat Instead of Burn Tobacco, RJ Reynolds Tobacco Company Monograph (1988), whose entirety is incorporated herein by reference. For example, the reconstituted tobacco material may include a sheet-like material containing tobacco and / or tobacco-related material. Thus, in some implementations, the base material may be formed from a rolled reconstituted tobacco material. In another implementation, the base material may be formed from fine fragments, shards, etc., of the reconstituted tobacco material. In another implementation, the tobacco sheet may comprise a crimped sheet of reconstructed tobacco material. In some implementations, the substrate material may comprise overlapping layers (e.g., a gathered web) which may or may not include thermally conductive components. An example of a substrate material comprising a series of overlapping layers (e.g., a gathered web) of an initial substrate sheet formed of a fibrous filler material, an aerosol-forming material, and multiple thermally conductive components is described in U.S. Patent Application No. 15 / 905,320, filed on 26 February 2018, titled "Heat Conducting Substrate For Electrically Heated Aerosol Delivery Device," which is incorporated herein by reference in its entirety.

[0106] In some implementations, the base material may comprise a plurality of microcapsules, beads, granules, and / or similar having tobacco-related materials. For example, a typical microcapsule may be substantially spherical in shape and may have an outer cover or shell containing a liquid central region such as a tobacco-derived extract. In some implementations, the base material may comprise a plurality of microcapsules, each formed in a hollow cylindrical shape. In some implementations, the base material may comprise a binder material configured to maintain the structural shape and / or integrity of the plurality of microcapsules formed in a hollow cylindrical shape.

[0107] The tobacco used in one or more of the base materials may include, or may be derived from, yellow tobacco, Burley tobacco, Oriental tobacco, Maryland tobacco, dark tobacco, dark tumbled tobacco, and Rustika tobacco, as well as other rare or specialty tobaccos, or blends thereof. Various representative tobacco types, tobacco processing types, and tobacco blend types are incorporated herein by reference in their entirety by reference in U.S. Patent No. 4,836,224 by Lawson et al., U.S. Patent No. 4,924,888 by Perfetti et al., U.S. Patent No. 5,056,537 by Brown et al., U.S. Patent No. 5,159,942 by Brinkley et al., U.S. Patent No. 5,220,930 by Gentry, U.S. Patent No. 5,360,023 by Blakley et al., and U.S. Patent No. 5,360,023 by Shafer et al. This is described in Japanese Patent No. 6,701,936, U.S. Patent No. 6,730,832 by Dominguez et al., U.S. Patent No. 7,011,096 by Li et al., U.S. Patent No. 7,017,585 by Li et al., U.S. Patent No. 7,025,066 by Lawson et al., U.S. Patent Application Publication No. 2004 / 0255965 by Perfetti et al., PCT International Publication No. 02 / 37990 by Bereman, and Fund.Appl.Toxicol., 39, pp. 11-17 (1997) by Bombick et al.

[0108] In various implementation configurations, the substrate material can take on various structures based on the varying amounts of material used therein. For example, a sample substrate material may contain up to approximately 98% by weight, up to approximately 95% by weight, or up to approximately 90% by weight of tobacco and / or tobacco-related materials. The sample substrate material may also contain up to approximately 25% by weight, up to approximately 20% by weight, or up to approximately 15% by weight of water, particularly approximately 2% to approximately 25% by weight, up to approximately 5% to approximately 20% by weight, or up to approximately 7% to approximately 15% by weight of water. Flavorings, etc. (including drugs such as nicotine) may constitute up to approximately 10% by weight, up to approximately 8% by weight, or up to approximately 5% by weight of the aerosol delivery components.

[0109] In some implementations, flame-retardant / burn-retardant materials and other additives may be included in the base material, and may include organophosphorus compounds, borax, hydrated alumina, graphite, potassium tripolyphosphate, dipentaerythritol, pentaerythritol, and polyols. Others such as nitrogen phosphonates, monoammonium phosphate, ammonium polyphosphate, ammonium bromide, ammonium borate, ammonium ethanol borate, ammonium sulfamate, halogenated organic compounds, thiourea, and antimony oxide are also suitable but not preferred agents. In each embodiment of flame-retardant, burn-retardant, and / or char-retardant materials used in the base material and / or other components (whether alone or in combination with each other and / or other materials), the desired properties are provided most preferably without undesirable gas release or molten behavior. Other examples include diammonium phosphate and / or other salts configured to help prevent ignition, thermal decomposition, combustion, and / or charring of the base material by a heat source. Various forms and methods for incorporating tobacco into smoking products, in particular smoking products designed to intentionally prevent substantially any tobacco within the product from burning, are described in U.S. Patent No. 4,947,874 by Brooks et al., U.S. Patent No. 7,647,932 by Cantrell et al., U.S. Patent No. 8,079,371 by Robinson et al., U.S. Patent No. 7,290,549 by Banerjee et al., and U.S. Patent Application Publication No. 2007 / 0215167 by Crooks et al., whose entire disclosure is incorporated herein by reference.

[0110] In other implementations of this disclosure, the base material may also incorporate tobacco additives of the types conventionally used in the manufacture of tobacco products. These additives may include materials of the type used to enhance the flavor and aroma of tobacco used in the manufacture of cigars, cigarettes, pipes, etc. For example, these additives may include various cigarette flavoring components and / or top-layer components. See, for example, U.S. Patent No. 3,419,015 by Wochnowski, U.S. Patent No. 4,054,145 by Berndt et al., U.S. Patent No. 4,887,619 by Burcham, Jr. et al., U.S. Patent No. 5,022,416 by Watson, U.S. Patent No. 5,103,842 by Strang et al., and U.S. Patent No. 5,711,320 by Martin, whose entire disclosures are incorporated herein by reference. Preferred flavoring materials may include water, sugars and syrups (e.g., sucrose, glucose and high-fructose corn syrup), humectants (e.g., glycerin or propylene glycol), and flavorings (e.g., cocoa and licorice). These additives may also include top-layer materials (e.g., flavoring materials such as menthol). See, for example, U.S. Patent No. 4,449,541 by Mays et al., whose entire disclosure is incorporated herein by reference. Additional materials that may be added include those disclosed in U.S. Patent No. 4,830,028 by Lawson et al. and U.S. Patent No. 8,186,360 by Marshall et al., whose entire disclosure is incorporated herein by reference.

[0111] A wide variety of flavorings or materials that alter the sensory or sensory-stimulating properties or characteristics of the mainstream aerosol of a smoking product may be suitable for use. In some implementations, such flavorings may be supplied from sources other than tobacco and may be natural or artificial in nature. For example, some flavorings may be applied to or incorporated into the base material and / or the area of ​​the smoking product where the aerosol is produced. In some implementations, such agents may be supplied directly to the heating cavity or area adjacent to the heat source, or provided together with the base material. Exemplary flavorings may include, for example, vanillin, ethyl vanillin, cream, tea, coffee, fruit (e.g., apple, cherry, strawberry, peach, and citrus flavors including lime and lemon), maple, menthol, mint, peppermint, spearmint, wintergreen, nutmeg, clove, lavender, cardamom, ginger, honey, anise, sage, cinnamon, sandalwood, jasmine, cascarilla, cocoa, licorice, and flavorings and flavoring packages of types and characteristics conventionally used in cigarette, cigar, and pipe tobacco flavorings. Syrups such as high-fructose corn syrup may also be suitable for use.

[0112] Flavorings may also contain acidic or basic properties (e.g., organic acids such as levulinic acid, succinic acid, pyruvic acid, and benzoic acid). In some implementations, flavorings may be combined with elements of the base material, if desired. Suitable exemplary plant-derived compositions are disclosed in Dube et al., U.S. Patent No. 9,107,453 and U.S. Patent Application Publication No. 2012 / 0152265, both of which are incorporated herein by reference in their entirety. Any of the materials that may be useful in combination with the tobacco material to affect its sensory properties, including sensory stimuli properties as described herein, may be combined with the base material. In particular, organic acids may be incorporated into the base material to affect the flavor, sensory, or sensory stimuli properties of drugs such as nicotine, which may be combined with the base material. For example, organic acids such as levulinic acid, lactic acid, and pyruvic acid may be included in the base material together with nicotine in amounts up to equimolar (based on the total organic acid content). Any combination of organic acids may be preferred. For example, in some implementations, the base material may contain about 0.1 to about 0.5 moles of levulinic acid, about 0.1 to about 0.5 moles of pyruvate, about 0.1 to about 0.5 moles of lactic acid, or a combination thereof, per mole of nicotine, up to a concentration where the total amount of organic acids present is equimolar to the total amount of nicotine present in the base material. Various additional examples of organic acids that may be used to produce the base material are described in U.S. Patent Application Publication No. 2015 / 0344456 by Dull et al., which is incorporated in whole herein by reference.

[0113] The selection of such additional components may vary based on factors such as the desired sensory characteristics of the smoking product, and this disclosure is intended to encompass any such additional components that are readily apparent to those skilled in the art of tobacco and tobacco-related or tobacco-derived products. See, in their entirety, Gutcho, Tobacco Flavoring Substances and Methods, Noyes Data Corp. (1972) and Leffingwell et al., Tobacco Flavoring for Smoking Products (1972), which are incorporated herein by reference.

[0114] In some implementations, the base material may include other materials having various unique characteristics or properties. For example, the base material may include plasticizing materials in the form of rayon or regenerated cellulose. Another example that may be suitable is viscose (commercially available as VISIL(R)), a regenerated cellulose product incorporating silica. Some carbon fibers may contain at least 95 percent or more carbon. Similarly, natural cellulose fibers such as cotton may be suitable, and natural cellulose fibers such as cotton may be impregnated with silica, carbon or metal particles, or treated with silica, carbon or metal particles to enhance flame retardancy and, in particular, minimize the release of any undesirable gas-releasing components that would adversely affect the flavor (in particular, minimize the possibility of any harmful gas-releasing products). To provide the desired flame retardancy, it may be possible to treat cotton with, for example, boric acid or various organophosphate compounds by immersion, spraying, or other techniques known in the art. These fibers may also be treated with organic or metal nanoparticles to impart desired flame-retardant properties without undesirable gas release or melting behavior (e.g., coating by immersion, spraying, or vapor deposition, injection, or both).

[0115] In the illustrated implementation, the first and / or second layers may also contain an aerosol-forming material, such as an aerosol precursor composition. In some implementations, the aerosol precursor composition may contain one or more humectants, such as propylene glycol and glycerin. In various implementations, the amount of aerosol precursor composition used in the aerosol delivery device may be such that the aerosol delivery device exhibits acceptable sensory and sensory stimulation characteristics as well as desirable performance characteristics. For example, in some implementations, the aerosol precursor composition (e.g., glycerin and / or propylene glycol) can provide the generation of a visible mainstream aerosol that in many respects resembles the appearance of cigarette smoke. For example, the amount of aerosol precursor composition incorporated into the substrate material of a smoking product may be in the range of about 4.5 grams or less, 3.5 grams or less, about 3 grams or less, about 2.5 grams or less, about 2 grams or less, about 1.5 grams or less, about 1 gram or less, or about 0.5 grams or less. However, it should be noted that values ​​outside these ranges are possible in other implementations.

[0116] Representative types of additional aerosol precursor compositions are described in U.S. Patent No. 4,793,365 by Sensabaugh, Jr. et al., U.S. Patent No. 5,101,839 by Jakob et al., PCT International Publication No. 98 / 57556 by Biggs et al., and Chemical and Biological Studies on New Cigarette Prototypes that Heat Instead of Burn Tobacco, RJ Reynolds Tobacco Company Monograph (1988), the disclosure of which is incorporated herein by reference. In some embodiments, the aerosol source component may produce a visible aerosol when sufficiently heated (and cooled by air as necessary), and the aerosol source component may produce a “smoky” aerosol. In other embodiments, the aerosol source component may produce an aerosol that is substantially invisible but is perceived as present by other properties such as flavor or texture. Thus, the properties of the aerosol produced may vary depending on the specific components of the aerosol delivery component. In various implementations, the aerosol source component can be chemically simpler compared to the chemical properties of smoke produced by burning tobacco.

[0117] In some implementations, the aerosol precursor composition, also called the vapor precursor composition or "e-liquid," may contain a variety of components, including, for example, polyhydric alcohols (e.g., glycerin, propylene glycol, or mixtures thereof), nicotine, tobacco, tobacco extract, and / or flavorings. Several possible types of aerosol precursor components and formulations are described and characterized in U.S. Patent No. 7,217,320 by Robinson et al., U.S. Patent Publication No. 2013 / 0008457 by Zheng et al., U.S. Patent Publication No. 2013 / 0213417 by Chong et al., U.S. Patent Publication No. 2014 / 0060554 by Collett et al., U.S. Patent Publication No. 2015 / 0020823 by Lipowicz et al., and U.S. Patent Publication No. 2015 / 0020830 by Koller, as well as International Publication No. 2014 / 182736 by Bowen et al., and these disclosures are incorporated herein by reference. Other aerosol precursors that can be used include those incorporated into VUSE(R) products by RJReynolds Vapor Company, BLU(TM) products by Fontem Ventures BV, MISTIC MENTHOL products by Mistic Ecigs, MARK TEN products by Nu Mark LLC, JUUL products by Juul Labs, Inc., and VYPE products by CN Creative Ltd. Also possible is the so-called "smoke juice" for e-cigarettes, available from Johnson Creek Enterprises LLC.Further examples of possible aerosol precursor compositions are sold under the trademark names BLACK NOTE, COSMIC FOG, THE MILKMAN E-LIQUID, FIVE PAWNS, THE VAPOR CHEF, VAPE WILD, BOOSTED, THE STEAM FACTORY, MECH SAUCE, CASEY JONES MAINLINE RESERVE, MITTEN VAPORS, DR.CRIMMY'S V-LIQUID, SMILEY E LIQUID, BEANTOWN VAPOR, CUTTWOOD, CYCLOPS VAPOR, SICBOY, GOOD LIFE VAPOR, TELEOS, PINUP VAPORS, SPACE JAM, MT.BAKER VAPOR, and JIMMY THE JUICE MAN.

[0118] The amount of aerosol precursor incorporated into the aerosol source component is such that the aerosol generating component provides an acceptable sensation and desirable performance characteristics. For example, it is desirable to use a sufficient amount of aerosol-forming material to generate a visible mainstream aerosol that in many respects resembles the appearance of cigarette smoke. The amount of aerosol precursor in the aerosol generating system may be determined depending on factors such as the desired number of smoke inhalations per aerosol generating component. In one or more embodiments, the aerosol precursor composition may include about 0.5 ml or more, about 1 ml or more, about 2 ml or more, about 5 ml or more, or about 10 ml or more.

[0119] Referring back to Figure 5, as described above, the first layer 235 contains a plurality of susceptor particles 260, and the second layer 252 contains a plurality of susceptor particles 262, with the susceptor particles 260, 262 comprising a resonant receiving section. In various implementations, the plurality of susceptor particles 260, 262 may have various shapes, sizes, and materials that can be combined within the same layer in some implementations. For example, in some implementations, one or more of the plurality of susceptor particles 260, 262 may have a substantially spherical, flaky, substantially cubic, irregular shape (e.g., a shape with one or more (e.g., multiple) sides having different dimensions) or any combination thereof. In various implementations, the plurality of susceptor particles 260, 262 may include, but are not limited to, ferromagnetic materials including cobalt, iron, nickel, zinc, manganese, and any combination thereof. In additional implementations, the multiple susceptor particles 260, 262 may include other porous metallic materials such as aluminum or stainless steel, as well as other materials including ceramic materials such as silicon carbide, carbon materials, and any combination of any of the above materials. In yet another implementation, the multiple susceptor particles may include other conductive materials, including metals such as copper, alloys of conductive materials, or other materials in which one or more conductive materials are embedded. In various implementations, the size of the porous susceptor particles may vary, but in some implementations, one or more of the multiple porous susceptor particles may have a diameter in a broad range of about 100 microns (0.1 mm) to about 2 mm, and in some implementations, one or more of the multiple porous susceptor particles may have a diameter in a broad range of about 0.5 mm to about 1.5 mm.

[0120] In the illustrated implementation, changes in the current within the helical coil of the control body (i.e., the resonant transmitter), induced from a power source by the control component (e.g., via a driver circuit), generate an alternating current electromagnetic field that penetrates multiple susceptor particles 260, 262 (i.e., the resonant receiver), thereby generating electric eddy currents within the susceptor particles 260, 262. The alternating current electromagnetic field can be generated by inducing alternating current through the helical coil. As described above, in some implementations, the control component may include an inverter or inverter circuit configured to convert the direct current supplied by the power source into alternating current supplied to the resonant transmitter.

[0121] Eddy currents flowing through multiple susceptor particles 260, 262 can generate heat through the Joule effect, and the amount of heat generated is proportional to the square of the current multiplied by the electrical resistance of the materials of the multiple susceptor particles 260, 262. In implementations in which the multiple susceptor particles 260, 262 include ferromagnetic material, heat may also be generated by magnetic hysteresis loss. Several factors, including but not limited to proximity to the helical coil, magnetic field distribution, electrical resistivity of the materials of the multiple susceptor particles 260, 262, saturation magnetic flux density, skin effect or depth, hysteresis loss, susceptibility, permeability, and dipole moment of the material, contribute to the temperature rise of the multiple susceptor particles 260, 262.

[0122] In this regard, and as described above, the multiple susceptor particles 260, 262 and the helical coil may both contain conductive material. For example, the helical coil and / or the multiple susceptor particles 260, 262 may contain a variety of conductive materials, including metals such as copper or aluminum, alloys of conductive materials (e.g., diamagnetic, paramagnetic, or ferromagnetic materials), or other materials such as ceramics or glass with one or more conductive materials embedded inside. In some implementations, the multiple susceptor particles may be coated with or otherwise contain a thermally conductive passivation layer (e.g., a thin layer of glass).

[0123] In some implementations, the multiple porous susceptor particles 260, 262 contained in the aerosol source member may be complemented by additional / alternative resonant receivers. For example, in some implementations, the control body of the device may include separate resonant receivers, such as one or more receiver prongs. Examples of preferred configurations are described in U.S. Patent Application No. 15 / 799,365, filed October 31, 2017, which is incorporated herein by reference in its entirety.

[0124] Referring back to Figure 5, the base material portion 210 in some mounting configurations may also include a cover layer 254 positioned around the peripheral portion 252. In the illustrated mounting configurations, the cover layer 254 comprises a foil sublayer 256 and a paper sublayer 258, with the paper sublayer 258 positioned around the foil sublayer 256. In some mounting configurations, the foil sublayer and the paper sublayer may comprise a single laminate. In some mounting configurations, the paper sublayer may comprise paper or other fibrous material, such as cellulose material. The paper sublayer material may also comprise at least one filler material embedded or dispersed within the fibrous material. In various mounting configurations, the filler material may be in the form of water-insoluble particles. Furthermore, the filler material may incorporate inorganic components. In various mounting configurations, the paper sublayer may be formed from multiple layers, such as an underlying bulk layer, and an on top layer, such as the wrapping paper typical in cigarettes. Such materials may include, for example, lightweight “rag fibers” such as flax, hemp, sisal, rice straw, and / or esparto. Various types of paper materials are described in U.S. Patent No. 5,105,838 by White et al., U.S. Patent No. 5,271,419 by Arzonico et al., U.S. Patent No. 5,220,930 by Gentry, U.S. Patent No. 6,908,874 by Woodhead et al., U.S. Patent No. 6,929,013 by Ashcraft et al., U.S. Patent No. 7,195,019 by Hancock et al., U.S. Patent No. 7,276,120 by Holmes, U.S. Patent No. 7,275,548 by Hancock et al., PCT International Publication No. 01 / 08514 by Fournier et al., and PCT International Publication No. 03 / 043450 by Hajaligol et al., which are incorporated herein by reference in their entirety. In some configurations, the paper material may include commercially available materials such as RJReynolds Tobacco Company grades 119, 170, 419, 453, 454, 456, 465, 466, 490, 525, 535, 557, 652, 664, 672, 676, and 680 from Schweitzer-Maudit International. In the illustrated configuration, the foil sublayer 252 includes a metallic foil material such as aluminum foil.However, in other mounting configurations, the foil sublayer may include, but is not limited to, other materials including copper, tin, gold, graphene, graphite, or other thermally conductive carbon-based materials and / or any combination thereof. While various thicknesses are possible, in some mounting configurations, the cover layer may have a thickness in a comprehensive range of approximately 1 mm to approximately 3 mm.

[0125] Alternative implementations of the present disclosure are shown in Figures 6 and 7. In particular, Figure 6 shows a schematic cross-sectional view of a portion of the base material portion 310 of the aerosol source member, and Figure 7 shows a schematic longitudinal cross-sectional view of a portion of the base material portion 310 of the aerosol source member of Figure 6. In various implementations, the aerosol source member having the base material portion 310 of Figures 6 and 7 may be used with various control bodies, such as the control bodies of Figures 1 to 3 and Figure 10. In the illustrated implementations, the base material portion 310 of the aerosol source member includes a plurality of susceptor bands 370 (see Figure 7) extending through at least a portion of the base material portion 310. In various implementations, the number of susceptor bands in the base material portion 310 may vary. For example, in some implementations there may be as few as two susceptor bands, while in other implementations there may be twelve or more susceptor bands. Other configurations are possible, but in the illustrated implementation, the multiple susceptor bands 370 are spaced apart along the length of the base material portion 310. In particular, the multiple susceptor bands 370 in the illustrated implementation are spaced substantially evenly along the length of the base material portion 310. In various implementations, multiple susceptor particles 360 are arranged within each susceptor band 370. Other configurations are possible, but in the illustrated implementation, the multiple susceptor particles 360 are substantially aligned and substantially evenly spaced within each susceptor band 370.

[0126] In the illustrated packaging configuration, multiple susceptor bands 370 extend through the center of a substrate portion 310 across its diameter, and the substrate portion 310 of the illustrated packaging configuration comprises a substrate material 348, in which multiple susceptor particles 360 are embedded or dispersed within the substrate material 348. In some packaging configurations, the substrate material may comprise an extruded tobacco structure. For example, in some packaging configurations, the extruded structure may comprise, or be essentially composed of, tobacco, tobacco-related materials, glycerin, water, a binder material, and / or one or more fillers and curing agents such as calcium carbonate, rice flour, or corn flour. In various packaging configurations, suitable binder materials may include alginates such as ammonium alginate, propylene glycol alginate, potassium alginate, and sodium alginate. Alginates, particularly high-viscosity alginates, may be used in combination with controlled levels of free calcium ions. Other suitable binder materials include hydroxypropylcellulose such as Klucel H from Aqualon Co.; hydroxypropylmethylcellulose such as Methocel K4MS from The Dow Chemical Co.; hydroxyethylcellulose such as Natrosol 250 MRCS from Aqualon Co.; microcrystalline cellulose such as Avicel from FMC; methylcellulose such as Methocel A4M from The Dow Chemical Co.; and sodium carboxymethylcellulose such as CMC 7HF and CMC 7H4F from Hercules Inc. Further possible binder materials include starch (e.g., corn starch), guar gum, carrageenan, locust bean gum, pectin, and xanthan gum. In some implementations, combinations or blends of two or more binder materials may be used. Other examples of binder materials are described, for example, in U.S. Patent No. 5,101,839 by Jakob et al. and U.S. Patent No. 4,924,887 by Raker et al., which are incorporated herein in their entirety by reference, respectively. In some implementations, the aerosol-forming material may be provided as part of a binder material (e.g., propylene glycol alginate).Furthermore, in some implementations, the binder material may include nanocellulose derived from tobacco or other biomass.

[0127] In some implementations, the base material may include an extruded material, as described in Stone et al., U.S. Patent Application Publication No. 2012 / 0042885, which is incorporated herein by reference in its entirety. In yet another implementation, the base material may include an extruded structure and / or base formed from marmelized and / or unmarmelized tobacco. Marmelized tobacco is known, for example, from Banerjee et al., U.S. Patent No. 5,105,831, which is incorporated herein by reference in its entirety. Marmelized tobacco, together with the binders and / or flavorings described herein, contains in powder form about 20 to about 50 percent (by weight) of a tobacco blend, along with glycerol (about 20 to about 30 percent by weight) and calcium carbonate (generally about 10 to about 60 percent by weight, often about 40 to about 60 percent by weight). In various implementations, the extruded material may have one or more longitudinal openings. In other implementations, the extruded material may have two or more sectors, such as an extruded product having a wagon wheel-shaped cross-section.

[0128] Additionally or alternatively, the base material may include, or essentially consist of, tobacco, glycerin, water, and / or binder materials, and further configured to substantially maintain its structure throughout the aerosol-generating process. That is, the base material may be configured to substantially maintain its shape throughout the aerosol-generating process (e.g., the base material does not deform continuously under applied shear stress). Such exemplary base materials may contain liquid and / or some water content, but the base material may remain substantially solid throughout the aerosol-generating process and substantially maintain its structural integrity throughout the aerosol-generating process. Examples of tobacco and / or tobacco-related materials that may be suitable for substantially solid substrate materials are described in the U.S. Patent Application Publication No. 2015 / 0157052 by Ademe et al., U.S. Patent Application Publication No. 2015 / 0335070 by Sears et al., U.S. Patent No. 6,204,287 by White, and U.S. Patent No. 5,060,676 by Hearn et al., which are incorporated herein by reference in their entirety.

[0129] In other implementations, the base material may include a blend of flavorful aromatic tobacco in cut-filler form. In yet another implementation, the base material may include reconstituted tobacco material, such as that described in U.S. Patent No. 4,807,809, U.S. Patent No. 4,889,143, and U.S. Patent No. 5,025,814, both of which are incorporated herein by reference in their entirety. Furthermore, the reconstituted tobacco material may include reconstituted tobacco paper for the type of cigarette described in Chemical and Biological Studies on New Cigarette Prototypes that Heat Instead of Burn Tobacco, RJ Reynolds Tobacco Company Monograph (1988), whose entirety is incorporated herein by reference. For example, the reconstituted tobacco material may include a sheet-like material containing tobacco and / or tobacco-related material. Thus, in some implementations, the base material may be formed from a rolled reconstituted tobacco material. In another implementation, the base material may be formed from fine fragments, shards, etc., of the reconstituted tobacco material. In another implementation, the tobacco sheet may comprise a crimped sheet of reconstructed tobacco material. In some implementations, the substrate material may comprise overlapping layers (e.g., a gathered web) which may or may not include thermally conductive components. An example of a substrate material comprising a series of overlapping layers (e.g., a gathered web) of an initial substrate sheet formed of a fibrous filler material, an aerosol-forming material, and multiple thermally conductive components is described in U.S. Patent Application No. 15 / 905,320, filed on 26 February 2018, titled "Heat Conducting Substrate For Electrically Heated Aerosol Delivery Device," which is incorporated herein by reference in its entirety.

[0130] In some implementations, the base material may include a plurality of microcapsules, beads, granules, etc., having tobacco-related materials. For example, a typical microcapsule may be substantially spherical in shape and may have an outer cover or shell containing a liquid central region such as a tobacco-derived extract. In some implementations, the base material may include a plurality of microcapsules, each formed in a hollow cylindrical shape. In some implementations, the base material may include a binder material configured to maintain the structural shape and / or integrity of the plurality of microcapsules formed in a hollow cylindrical shape.

[0131] The tobacco used in one or more of the base materials may include, or be derived from, yellow tobacco, Burley tobacco, Oriental tobacco, Maryland tobacco, dark tobacco, dark tumbled tobacco, and Rustika tobacco, as well as other rare or specialty tobaccos, or blends thereof. Various representative tobacco types, tobacco processing types, and tobacco blend types are incorporated herein by reference in their entirety by reference in U.S. Patent No. 4,836,224 by Lawson et al., U.S. Patent No. 4,924,888 by Perfetti et al., U.S. Patent No. 5,056,537 by Brown et al., U.S. Patent No. 5,159,942 by Brinkley et al., U.S. Patent No. 5,220,930 by Gentry, U.S. Patent No. 5,360,023 by Blakley et al., and U.S. Patent No. 5,360,023 by Shafer et al. This is described in Japanese Patent No. 6,701,936, U.S. Patent No. 6,730,832 by Dominguez et al., U.S. Patent No. 7,011,096 by Li et al., U.S. Patent No. 7,017,585 by Li et al., U.S. Patent No. 7,025,066 by Lawson et al., U.S. Patent Application Publication No. 2004 / 0255965 by Perfetti et al., PCT International Publication No. 02 / 37990 by Bereman, and Fund.Appl.Toxicol., 39, pp. 11-17 (1997) by Bombick et al.

[0132] In various implementation configurations, the substrate material can take on various structures based on the varying amounts of material used therein. For example, a sample substrate material may contain up to approximately 98% by weight, up to approximately 95% by weight, or up to approximately 90% by weight of tobacco and / or tobacco-related materials. The sample substrate material may also contain up to approximately 25% by weight, up to approximately 20% by weight, or up to approximately 15% by weight of water, particularly approximately 2% to approximately 25% by weight, up to approximately 5% to approximately 20% by weight, or up to approximately 7% to approximately 15% by weight of water. Flavorings, etc. (including drugs such as nicotine) may constitute up to approximately 10% by weight, up to approximately 8% by weight, or up to approximately 5% by weight of the aerosol delivery components.

[0133] In some implementations, flame-retardant / burn-retardant materials and other additives may be included in the base material, and may include organophosphorus compounds, borax, hydrated alumina, graphite, potassium tripolyphosphate, dipentaerythritol, pentaerythritol, and polyols. Others such as nitrogen phosphonates, monoammonium phosphate, ammonium polyphosphate, ammonium bromide, ammonium borate, ammonium ethanol borate, ammonium sulfamate, halogenated organic compounds, thiourea, and antimony oxide are also suitable but not preferred agents. In each embodiment of flame-retardant, burn-retardant, and / or char-retardant materials used in the base material and / or other components (whether alone or in combination with each other and / or other materials), the desired properties are provided most preferably without undesirable gas release or molten behavior. Other examples include diammonium phosphate and / or other salts configured to help prevent ignition, thermal decomposition, combustion, and / or charring of the base material by a heat source. Various forms and methods for incorporating tobacco into smoking products, in particular smoking products designed to intentionally prevent substantially any tobacco within the product from burning, are described in U.S. Patent No. 4,947,874 by Brooks et al., U.S. Patent No. 7,647,932 by Cantrell et al., U.S. Patent No. 8,079,371 by Robinson et al., U.S. Patent No. 7,290,549 by Banerjee et al., and U.S. Patent Application Publication No. 2007 / 0215167 by Crooks et al., whose entire disclosure is incorporated herein by reference.

[0134] In other implementations of this disclosure, the base material may also incorporate tobacco additives of the types conventionally used in the manufacture of tobacco products. These additives may include materials of the type used to enhance the flavor and aroma of tobacco used in the manufacture of cigars, cigarettes, pipes, etc. For example, these additives may include various cigarette flavoring components and / or top-layer components. See, for example, U.S. Patent No. 3,419,015 by Wochnowski, U.S. Patent No. 4,054,145 by Berndt et al., U.S. Patent No. 4,887,619 by Burcham, Jr. et al., U.S. Patent No. 5,022,416 by Watson, U.S. Patent No. 5,103,842 by Strang et al., and U.S. Patent No. 5,711,320 by Martin, whose entire disclosures are incorporated herein by reference. Preferred flavoring materials may include water, sugars and syrups (e.g., sucrose, glucose and high-fructose corn syrup), humectants (e.g., glycerin or propylene glycol), and flavorings (e.g., cocoa and licorice). These additives may also include top-layer materials (e.g., flavoring materials such as menthol). See, for example, U.S. Patent No. 4,449,541 by Mays et al., whose entire disclosure is incorporated herein by reference. Additional materials that may be added include those disclosed in U.S. Patent No. 4,830,028 by Lawson et al. and U.S. Patent No. 8,186,360 by Marshall et al., whose entire disclosure is incorporated herein by reference.

[0135] A wide variety of flavorings or materials that alter the sensory or sensory-stimulating properties or characteristics of the mainstream aerosol of a smoking product may be suitable for use. In some implementations, such flavorings may be supplied from sources other than tobacco and may be natural or artificial in nature. For example, some flavorings may be applied to or incorporated into the base material and / or the area of ​​the smoking product where the aerosol is produced. In some implementations, such agents may be supplied directly to the heating cavity or area adjacent to the heat source, or provided together with the base material. Exemplary flavorings may include, for example, vanillin, ethyl vanillin, cream, tea, coffee, fruit (e.g., apple, cherry, strawberry, peach, and citrus flavors including lime and lemon), maple, menthol, mint, peppermint, spearmint, wintergreen, nutmeg, clove, lavender, cardamom, ginger, honey, anise, sage, cinnamon, sandalwood, jasmine, cascarilla, cocoa, licorice, and flavorings and flavoring packages of types and characteristics conventionally used in cigarette, cigar, and pipe tobacco flavorings. Syrups such as high-fructose corn syrup may also be suitable for use.

[0136] Flavorings may also contain acidic or basic properties (e.g., organic acids such as levulinic acid, succinic acid, pyruvic acid, and benzoic acid). In some implementations, flavorings may be combined with elements of the base material, if desired. Suitable exemplary plant-derived compositions are disclosed in Dube et al., U.S. Patent No. 9,107,453 and U.S. Patent Application Publication No. 2012 / 0152265, both of which are incorporated herein by reference in their entirety. Any of the materials that may be useful in combination with the tobacco material to affect its sensory properties, including sensory stimuli properties as described herein, may be combined with the base material. In particular, organic acids may be incorporated into the base material to affect the flavor, sensory, or sensory stimuli properties of drugs such as nicotine, which may be combined with the base material. For example, organic acids such as levulinic acid, lactic acid, and pyruvic acid may be included in the base material together with nicotine in amounts up to equimolar (based on the total organic acid content). Any combination of organic acids may be preferred. For example, in some implementations, the base material may contain about 0.1 to about 0.5 moles of levulinic acid, about 0.1 to about 0.5 moles of pyruvate, about 0.1 to about 0.5 moles of lactic acid, or a combination thereof, per mole of nicotine, up to a concentration where the total amount of organic acids present is equimolar to the total amount of nicotine present in the base material. Various additional examples of organic acids that may be used to produce the base material are described in U.S. Patent Application Publication No. 2015 / 0344456 by Dull et al., which is incorporated in whole herein by reference.

[0137] The selection of such additional components may be variable based on factors such as the desired sensory characteristics of the smoking product, and this disclosure is intended to encompass any such additional components that are readily apparent to those skilled in the art of tobacco and tobacco-related or tobacco-derived products. See, in their entirety, Gutcho, Tobacco Flavoring Substances and Methods, Noyes Data Corp. (1972) and Leffingwell et al., Tobacco Flavoring for Smoking Products (1972), which are incorporated herein by reference.

[0138] In some implementations, the base material may include other materials having various unique characteristics or properties. For example, the base material may include plasticizing materials in the form of rayon or regenerated cellulose. Another example that may be suitable is viscose (commercially available as VISIL(R)), a regenerated cellulose product incorporating silica. Some carbon fibers may contain at least 95 percent or more carbon. Similarly, natural cellulose fibers such as cotton may be suitable, and natural cellulose fibers such as cotton may be impregnated with silica, carbon or metal particles, or treated with silica, carbon or metal particles to enhance flame retardancy and, in particular, minimize the release of any undesirable gas-releasing components that would adversely affect the flavor (in particular, minimize the possibility of any harmful gas-releasing products). To provide the desired flame retardancy, it may be possible to treat cotton with, for example, boric acid or various organophosphate compounds by immersion, spraying, or other techniques known in the art. These fibers may also be treated with organic or metal nanoparticles to impart desired flame-retardant properties without undesirable gas release or melting behavior (e.g., coating by immersion, spraying, or vapor deposition, injection, or both).

[0139] In the illustrated implementations, the base material may also include an aerosol-forming material, such as an aerosol precursor composition. In some implementations, the aerosol precursor composition may include one or more humectants, such as propylene glycol and glycerin. In various implementations, the amount of aerosol precursor composition used in the aerosol delivery device may be such that the aerosol delivery device exhibits acceptable sensory and sensory stimulation characteristics as well as desirable performance characteristics. For example, in some implementations, the aerosol precursor composition (e.g., glycerin and / or propylene glycol) can provide the generation of a visible mainstream aerosol that in many respects resembles the appearance of cigarette smoke. For example, the amount of aerosol precursor composition incorporated into the base material of a smoking product may be in the range of about 4.5 grams or less, 3.5 grams or less, about 3 grams or less, about 2.5 grams or less, about 2 grams or less, about 1.5 grams or less, about 1 gram or less, or about 0.5 grams or less. However, it should be noted that values ​​outside these ranges are possible in other implementations.

[0140] Representative types of additional aerosol precursor compositions are described in U.S. Patent No. 4,793,365 by Sensabaugh, Jr. et al., U.S. Patent No. 5,101,839 by Jakob et al., PCT International Publication No. 98 / 57556 by Biggs et al., and Chemical and Biological Studies on New Cigarette Prototypes that Heat Instead of Burn Tobacco, RJ Reynolds Tobacco Company Monograph (1988), the disclosure of which is incorporated herein by reference. In some embodiments, the aerosol source component may produce a visible aerosol when sufficiently heated (and cooled by air as necessary), and the aerosol source component may produce a “smoky” aerosol. In other embodiments, the aerosol source component may produce an aerosol that is substantially invisible but is perceived as present by other properties such as flavor or texture. Thus, the properties of the aerosol produced may vary depending on the specific components of the aerosol delivery component. In various implementations, the aerosol source component can be chemically simpler compared to the chemical properties of smoke produced by burning tobacco.

[0141] In some implementations, the aerosol precursor composition, also called the vapor precursor composition or "e-liquid," may contain a variety of components, including, for example, polyhydric alcohols (e.g., glycerin, propylene glycol, or mixtures thereof), nicotine, tobacco, tobacco extract, and / or flavorings. Several possible types of aerosol precursor components and formulations are described and characterized in U.S. Patent No. 7,217,320 by Robinson et al., U.S. Patent Publication No. 2013 / 0008457 by Zheng et al., U.S. Patent Application Publication No. 2013 / 0213417 by Chong et al., U.S. Patent Application Publication No. 2014 / 0060554 by Collett et al., U.S. Patent Application Publication No. 2015 / 0020823 by Lipowicz et al., and U.S. Patent Application Publication No. 2015 / 0020830 by Koller, as well as International Publication No. 2014 / 182736 by Bowen et al., and these disclosures are incorporated herein by reference. Other aerosol precursors that can be used include those incorporated into VUSE(R) products by RJReynolds Vapor Company, BLU(TM) products by Fontem Ventures BV, MISTIC MENTHOL products by Mistic Ecigs, MARK TEN products by Nu Mark LLC, JUUL products by Juul Labs, Inc., and VYPE products by CN Creative Ltd. Also possible is the so-called "smoke juice" for e-cigarettes, available from Johnson Creek Enterprises LLC.Further examples of possible aerosol precursor compositions are sold under the trademark names BLACK NOTE, COSMIC FOG, THE MILKMAN E-LIQUID, FIVE PAWNS, THE VAPOR CHEF, VAPE WILD, BOOSTED, THE STEAM FACTORY, MECH SAUCE, CASEY JONES MAINLINE RESERVE, MITTEN VAPORS, DR.CRIMMY'S V-LIQUID, SMILEY E LIQUID, BEANTOWN VAPOR, CUTTWOOD, CYCLOPS VAPOR, SICBOY, GOOD LIFE VAPOR, TELEOS, PINUP VAPORS, SPACE JAM, MT.BAKER VAPOR, and JIMMY THE JUICE MAN.

[0142] The amount of aerosol precursor incorporated into the aerosol source component is such that the aerosol generating component provides an acceptable sensation and desirable performance characteristics. For example, it is desirable to use a sufficient amount of aerosol-forming material to generate a visible mainstream aerosol that in many respects resembles the appearance of cigarette smoke. The amount of aerosol precursor in the aerosol generating system may be determined depending on factors such as the desired number of smoke inhalations per aerosol generating component. In one or more embodiments, the aerosol precursor composition may include about 0.5 ml or more, about 1 ml or more, about 2 ml or more, about 5 ml or more, or about 10 ml or more.

[0143] Referring back to Figures 6 and 7, as described above, the substrate portion 310 includes a plurality of susceptor bands 370, each of which includes a plurality of susceptor particles 360, each of which comprises a resonant receiving portion. In various configurations, the plurality of susceptor particles 360 may have a variety of shapes, sizes, and materials that can be combined within the same susceptor band in some configurations. For example, in some configurations, one or more of the plurality of susceptor particles 360 may have a substantially spherical, flaky, substantially cubic, irregular shape (e.g., a shape with one or more (e.g., multiple) sides having different dimensions) or any combination thereof. In various configurations, the plurality of susceptor particles 360 may include, but are not limited to, ferromagnetic materials including cobalt, iron, nickel, zinc, manganese, and any combination thereof. In additional implementation configurations, the multiple susceptor particles 360 may include other materials, such as other porous metallic materials like aluminum or stainless steel, as well as ceramic materials like silicon carbide, carbon materials, and any combination of any of the above materials. In yet another implementation configuration, the multiple susceptor particles may include other conductive materials, such as metals like copper, alloys of conductive materials, or other materials in which one or more conductive materials are embedded. In various implementation configurations, the size of the porous susceptor particles may vary, but in some configurations, one or more of the multiple porous susceptor particles may have a diameter in a broad range of about 100 microns (0.1 mm) to about 2 mm, and in some configurations, one or more of the multiple porous susceptor particles may have a diameter in a broad range of about 0.5 mm to about 1.5 mm.

[0144] In the illustrated implementation, changes in the current within the helical coil of the control body (i.e., the resonant transmitter), induced from a power source by the control component (e.g., via a driver circuit), generate an alternating current electromagnetic field that penetrates multiple susceptor particles 360 (i.e., the resonant receiver), thereby generating electric eddy currents within the susceptor particles 360. The alternating current electromagnetic field can be generated by inducing alternating current through the helical coil. As described above, in some implementations, the control component may include an inverter or inverter circuit configured to convert the direct current supplied by the power source into alternating current supplied to the resonant transmitter.

[0145] Eddy currents flowing through multiple susceptor particles 360 can generate heat through the Joule effect, and the amount of heat generated is proportional to the square of the current multiplied by the electrical resistance of the material of the multiple susceptor particles 360. In implementations in which the multiple susceptor particles 360 include ferromagnetic material, heat may also be generated by magnetic hysteresis loss. Several factors, including but not limited to proximity to the helical coil, magnetic field distribution, electrical resistivity of the material of the multiple susceptor particles 360, saturation magnetic flux density, skin effect or depth, hysteresis loss, susceptibility, permeability, and dipole moment of the material, contribute to the temperature rise of the multiple susceptor particles 360.

[0146] In this regard, and as described above, both the multiple susceptor particles 360 and the helical coil may contain conductive materials. For example, the helical coil and / or the multiple susceptor particles 360 may contain a variety of conductive materials, including metals such as copper or aluminum, alloys of conductive materials (e.g., diamagnetic, paramagnetic, or ferromagnetic materials), or other materials such as ceramics or glass with one or more conductive materials embedded inside. In some implementations, the multiple susceptor particles may be coated with or otherwise contain a thermally conductive passivation layer (e.g., a thin layer of glass).

[0147] In some implementations, the multiple porous susceptor particles 360 contained in the aerosol source member may be complemented by additional / alternative resonant receivers. For example, in some implementations, the control body of the device may include separate resonant receivers, such as one or more receiver prongs. Examples of preferred configurations are described in U.S. Patent Application No. 15 / 799,365, filed October 31, 2017, which is incorporated herein by reference in its entirety.

[0148] Referring back to Figures 6 and 7, the substrate portion 310 in some configurations may also include a cover layer 354 arranged around the substrate material 348. In the illustrated configurations, the cover layer 354 comprises a foil sublayer 356 and a paper sublayer 358, with the paper sublayer 358 arranged around the foil sublayer 356. In some configurations, the foil sublayer and the paper sublayer may comprise a single laminate. In some configurations, the paper sublayer may include paper or other fibrous material, such as cellulose material. The paper sublayer material may also include at least one filler material embedded or dispersed within the fibrous material. In various configurations, the filler material may be in the form of water-insoluble particles. Furthermore, the filler material may incorporate inorganic components. In various configurations, the paper sublayer may be formed from multiple layers, such as an underlying bulk layer, and an on top layer, such as the wrapping paper typical in cigarettes. Such materials may include, for example, lightweight “rag fibers” such as flax, hemp, sisal, rice straw, and / or esparto. Various types of paper materials are described in U.S. Patent No. 5,105,838 by White et al., U.S. Patent No. 5,271,419 by Arzonico et al., U.S. Patent No. 5,220,930 by Gentry, U.S. Patent No. 6,908,874 by Woodhead et al., U.S. Patent No. 6,929,013 by Ashcraft et al., U.S. Patent No. 7,195,019 by Hancock et al., U.S. Patent No. 7,276,120 by Holmes, U.S. Patent No. 7,275,548 by Hancock et al., PCT International Publication No. 01 / 08514 by Fournier et al., and PCT International Publication No. 03 / 043450 by Hajaligol et al., which are incorporated herein by reference in their entirety. In some configurations, the paper material may include commercially available materials such as RJReynolds Tobacco Company grades 119, 170, 419, 453, 454, 456, 465, 466, 490, 525, 535, 557, 652, 664, 672, 676, and 680 from Schweitzer-Maudit International. In the illustrated configuration, the foil sublayer 352 includes a metallic foil material such as aluminum foil.However, in other mounting configurations, the foil sublayer may include, but is not limited to, other materials including copper, tin, gold, graphene, graphite, or other thermally conductive carbon-based materials and / or any combination thereof. While various thicknesses are possible, in some mounting configurations, the cover layer may have a thickness in a comprehensive range of approximately 1 mm to approximately 3 mm.

[0149] Alternative implementations of the present disclosure are shown in Figures 8 and 9. In particular, Figure 8 shows a schematic perspective view of a portion of the base material portion 410 of the aerosol source member, and Figure 9 shows a schematic cross-sectional view of a portion of the base material portion 410 of the aerosol source member in Figure 8. In various implementations, the aerosol source member having the base material portion 410 of Figures 8 and 9 may be used with various control bodies, such as the control bodies in Figures 1 to 3 and Figure 10. In the illustrated implementations, a longitudinal axis 450 is defined passing through the base material portion 410, and the base material portion 410 includes a plurality of susceptor bands 470 (see Figure 8) extending through at least a portion of the base material portion 410. In various implementations, the number of susceptor bands in the base material portion 410 may vary. For example, in some implementations there may be as few as two susceptor bands, while in other implementations there may be twelve or more susceptor bands. Other configurations are possible, but in the illustrated configuration, the susceptor strips 470 are spaced apart along the length of the base material portion 410. In particular, the susceptor strips 470 in the illustrated configuration are spaced substantially evenly along the length of the base material portion 410. In various configurations, the susceptor coils 472 are arranged within each susceptor strip 470. Other configurations are possible, but in the illustrated configuration, the susceptor coils 472 are spaced radially around the longitudinal axis 450 of the base material portion 410. In various configurations, the susceptor coils 472 may be arranged at any radial position within the base material portion 410. For example, in some configurations, the susceptor coils may be arranged close to the longitudinal axis 450 of the base material portion 410. In other configurations, the susceptor coils may be arranged close to the outer surface of the base material portion 410. In other configurations, multiple susceptor coils may be arranged on or on the outer surface of the base material portion 410. In various configurations, any number of susceptor coils may be present within each susceptor band. For example, in some configurations, there may be as few as two susceptor coils within each susceptor band. In other configurations, there may be 12 or more susceptor coils within each susceptor band. Referring to Figure 9, in the illustrated configuration, there are eight susceptor coils 472 within each susceptor band 470.

[0150] Other configurations are possible, but in the illustrated mounting configuration, the susceptor coils 472 are substantially evenly spaced radially around the longitudinal axis 450 of the base material portion 410. Other mounting configurations are possible, but in the illustrated mounting configuration, each of the susceptor coils 472 defines a longitudinal axis 474, and the susceptor coils 472 are arranged such that the longitudinal axes 474 of the multiple susceptor coils 472 are substantially parallel to the longitudinal axis 450 of the base material portion 410.

[0151] The substrate portion 410 of the illustrated mounting configuration comprises a substrate material 448, and a plurality of susceptor coils 472 are embedded or dispersed within the substrate material 448. In some mounting configurations, the substrate material may comprise an extruded tobacco structure. For example, in some mounting configurations, the extruded structure may comprise, or be essentially composed of, tobacco, tobacco-related materials, glycerin, water, a binder material, and / or one or more fillers and curing agents such as calcium carbonate, rice flour, corn flour, etc. In various mounting configurations, suitable binder materials may include alginates such as ammonium alginate, propylene glycol alginate, potassium alginate, and sodium alginate. Alginates, particularly high-viscosity alginates, may be used in combination with controlled levels of free calcium ions. Other suitable binder materials include hydroxypropylcellulose such as Klucel H from Aqualon Co.; hydroxypropylmethylcellulose such as Methocel K4MS from The Dow Chemical Co.; hydroxyethylcellulose such as Natrosol 250 MRCS from Aqualon Co.; microcrystalline cellulose such as Avicel from FMC; methylcellulose such as Methocel A4M from The Dow Chemical Co.; and sodium carboxymethylcellulose such as CMC 7HF and CMC 7H4F from Hercules Inc. Further possible binder materials include starch (e.g., corn starch), guar gum, carrageenan, locust bean gum, pectin, and xanthan gum. In some implementations, combinations or blends of two or more binder materials may be used. Other examples of binder materials are described, for example, in U.S. Patent No. 5,101,839 by Jakob et al. and U.S. Patent No. 4,924,887 by Raker et al., which are incorporated herein in their entirety by reference, respectively. In some implementations, the aerosol-forming material may be provided as part of a binder material (e.g., propylene glycol alginate). Furthermore, in some implementations, the binder material may include nanocellulose derived from tobacco or other biomass.

[0152] In some implementations, the base material may include an extruded material, as described in Stone et al., U.S. Patent Application Publication No. 2012 / 0042885, which is incorporated herein by reference in its entirety. In yet another implementation, the base material may include an extruded structure and / or base formed from marmelized and / or unmarmelized tobacco. Marmelized tobacco is known, for example, from Banerjee et al., U.S. Patent No. 5,105,831, which is incorporated herein by reference in its entirety. Marmelized tobacco, together with the binders and / or flavorings described herein, contains in powder form about 20 to about 50 percent (by weight) of a tobacco blend, along with glycerol (about 20 to about 30 percent by weight) and calcium carbonate (generally about 10 to about 60 percent by weight, often about 40 to about 60 percent by weight). In various implementations, the extruded material may have one or more longitudinal openings. In other implementations, the extruded material may have two or more sectors, such as an extruded product having a wagon wheel-shaped cross-section.

[0153] Additionally or alternatively, the base material may include, or essentially consist of, tobacco, glycerin, water, and / or binder materials, and further configured to substantially maintain its structure throughout the aerosol-generating process. That is, the base material may be configured to substantially maintain its shape throughout the aerosol-generating process (e.g., the base material does not deform continuously under applied shear stress). Such exemplary base materials may contain liquid and / or some water content, but the base material may remain substantially solid throughout the aerosol-generating process and substantially maintain its structural integrity throughout the aerosol-generating process. Examples of tobacco and / or tobacco-related materials that may be suitable for substantially solid substrate materials are described in the U.S. Patent Application Publication No. 2015 / 0157052 by Ademe et al., U.S. Patent Application Publication No. 2015 / 0335070 by Sears et al., U.S. Patent No. 6,204,287 by White, and U.S. Patent No. 5,060,676 by Hearn et al., which are incorporated herein by reference in their entirety.

[0154] In other implementations, the base material may include a blend of flavorful aromatic tobacco in cut-filler form. In yet another implementation, the base material may include reconstituted tobacco material, such as that described in U.S. Patent No. 4,807,809, U.S. Patent No. 4,889,143, and U.S. Patent No. 5,025,814, both of which are incorporated herein by reference in their entirety. Furthermore, the reconstituted tobacco material may include reconstituted tobacco paper for the type of cigarette described in Chemical and Biological Studies on New Cigarette Prototypes that Heat Instead of Burn Tobacco, RJ Reynolds Tobacco Company Monograph (1988), whose entirety is incorporated herein by reference. For example, the reconstituted tobacco material may include a sheet-like material containing tobacco and / or tobacco-related material. Thus, in some implementations, the base material may be formed from a rolled reconstituted tobacco material. In another implementation, the base material may be formed from fine fragments, shards, etc., of the reconstituted tobacco material. In another implementation, the tobacco sheet may comprise a crimped sheet of reconstructed tobacco material. In some implementations, the substrate material may comprise overlapping layers (e.g., a gathered web) which may or may not include thermally conductive components. An example of a substrate material comprising a series of overlapping layers (e.g., a gathered web) of an initial substrate sheet formed of a fibrous filler material, an aerosol-forming material, and multiple thermally conductive components is described in U.S. Patent Application No. 15 / 905,320, filed on 26 February 2018, titled "Heat Conducting Substrate For Electrically Heated Aerosol Delivery Device," which is incorporated herein by reference in its entirety.

[0155] In some implementations, the base material may include a plurality of microcapsules, beads, granules, etc., having tobacco-related materials. For example, a typical microcapsule may be substantially spherical in shape and may have an outer cover or shell containing a liquid central region such as a tobacco-derived extract. In some implementations, the base material may include a plurality of microcapsules, each formed in a hollow cylindrical shape. In some implementations, the base material may include a binder material configured to maintain the structural shape and / or integrity of the plurality of microcapsules formed in a hollow cylindrical shape.

[0156] The tobacco used in one or more of the base materials may include, or be derived from, yellow tobacco, Burley tobacco, Oriental tobacco, Maryland tobacco, dark tobacco, dark tumbled tobacco, and Rustika tobacco, as well as other rare or specialty tobaccos, or blends thereof. Various representative tobacco types, tobacco processing types, and tobacco blend types are incorporated herein by reference in their entirety by reference in U.S. Patent No. 4,836,224 by Lawson et al., U.S. Patent No. 4,924,888 by Perfetti et al., U.S. Patent No. 5,056,537 by Brown et al., U.S. Patent No. 5,159,942 by Brinkley et al., U.S. Patent No. 5,220,930 by Gentry, U.S. Patent No. 5,360,023 by Blakley et al., and U.S. Patent No. 5,360,023 by Shafer et al. This is described in Japanese Patent No. 6,701,936, U.S. Patent No. 6,730,832 by Dominguez et al., U.S. Patent No. 7,011,096 by Li et al., U.S. Patent No. 7,017,585 by Li et al., U.S. Patent No. 7,025,066 by Lawson et al., U.S. Patent Application Publication No. 2004 / 0255965 by Perfetti et al., PCT International Publication No. 02 / 37990 by Bereman, and Fund.Appl.Toxicol., 39, pp. 11-17 (1997) by Bombick et al.

[0157] In various implementation configurations, the substrate material can take on various structures based on the varying amounts of material used therein. For example, a sample substrate material may contain up to approximately 98% by weight, up to approximately 95% by weight, or up to approximately 90% by weight of tobacco and / or tobacco-related materials. The sample substrate material may also contain up to approximately 25% by weight, up to approximately 20% by weight, or up to approximately 15% by weight of water, particularly approximately 2% to approximately 25% by weight, up to approximately 5% to approximately 20% by weight, or up to approximately 7% to approximately 15% by weight of water. Flavorings, etc. (including drugs such as nicotine) may constitute up to approximately 10% by weight, up to approximately 8% by weight, or up to approximately 5% by weight of the aerosol delivery components.

[0158] In some implementations, flame-retardant / burn-retardant materials and other additives may be included in the base material, and may include organophosphorus compounds, borax, hydrated alumina, graphite, potassium tripolyphosphate, dipentaerythritol, pentaerythritol, and polyols. Others such as nitrogen phosphonates, monoammonium phosphate, ammonium polyphosphate, ammonium bromide, ammonium borate, ammonium ethanol borate, ammonium sulfamate, halogenated organic compounds, thiourea, and antimony oxide are also suitable but not preferred agents. In each embodiment of flame-retardant, burn-retardant, and / or char-retardant materials used in the base material and / or other components (whether alone or in combination with each other and / or other materials), the desired properties are provided most preferably without undesirable gas release or molten behavior. Other examples include diammonium phosphate and / or other salts configured to help prevent ignition, thermal decomposition, combustion, and / or charring of the base material by a heat source. Various forms and methods for incorporating tobacco into smoking products, in particular smoking products designed to intentionally prevent substantially any tobacco within the product from burning, are described in U.S. Patent No. 4,947,874 by Brooks et al., U.S. Patent No. 7,647,932 by Cantrell et al., U.S. Patent No. 8,079,371 by Robinson et al., U.S. Patent No. 7,290,549 by Banerjee et al., and U.S. Patent Application Publication No. 2007 / 0215167 by Crooks et al., whose entire disclosure is incorporated herein by reference.

[0159] In other implementations of this disclosure, the base material may also incorporate tobacco additives of the types conventionally used in the manufacture of tobacco products. These additives may include materials of the type used to enhance the flavor and aroma of tobacco used in the manufacture of cigars, cigarettes, pipes, etc. For example, these additives may include various cigarette flavoring components and / or top-layer components. See, for example, U.S. Patent No. 3,419,015 by Wochnowski, U.S. Patent No. 4,054,145 by Berndt et al., U.S. Patent No. 4,887,619 by Burcham, Jr. et al., U.S. Patent No. 5,022,416 by Watson, U.S. Patent No. 5,103,842 by Strang et al., and U.S. Patent No. 5,711,320 by Martin, whose entire disclosures are incorporated herein by reference. Preferred flavoring materials may include water, sugars and syrups (e.g., sucrose, glucose and high-fructose corn syrup), humectants (e.g., glycerin or propylene glycol), and flavorings (e.g., cocoa and licorice). These additives may also include top-layer materials (e.g., flavoring materials such as menthol). See, for example, U.S. Patent No. 4,449,541 by Mays et al., whose entire disclosure is incorporated herein by reference. Additional materials that may be added include those disclosed in U.S. Patent No. 4,830,028 by Lawson et al. and U.S. Patent No. 8,186,360 by Marshall et al., whose entire disclosure is incorporated herein by reference.

[0160] A wide variety of flavorings or materials that alter the sensory or sensory-stimulating properties or characteristics of the mainstream aerosol of a smoking product may be suitable for use. In some implementations, such flavorings may be supplied from sources other than tobacco and may be natural or artificial in nature. For example, some flavorings may be applied to or incorporated into the base material and / or the area of ​​the smoking product where the aerosol is produced. In some implementations, such agents may be supplied directly to the heating cavity or area adjacent to the heat source, or provided together with the base material. Exemplary flavorings may include, for example, vanillin, ethyl vanillin, cream, tea, coffee, fruit (e.g., apple, cherry, strawberry, peach, and citrus flavors including lime and lemon), maple, menthol, mint, peppermint, spearmint, wintergreen, nutmeg, clove, lavender, cardamom, ginger, honey, anise, sage, cinnamon, sandalwood, jasmine, cascarilla, cocoa, licorice, and flavorings and flavoring packages of types and characteristics conventionally used in cigarette, cigar, and pipe tobacco flavorings. Syrups such as high-fructose corn syrup may also be suitable for use.

[0161] Flavorings may also contain acidic or basic properties (e.g., organic acids such as levulinic acid, succinic acid, pyruvic acid, and benzoic acid). In some implementations, flavorings may be combined with elements of the base material, if desired. Suitable exemplary plant-derived compositions are disclosed in Dube et al., U.S. Patent No. 9,107,453 and U.S. Patent Application Publication No. 2012 / 0152265, both of which are incorporated herein by reference in their entirety. Any of the materials that may be useful in combination with the tobacco material to affect its sensory properties, including sensory stimuli properties as described herein, may be combined with the base material. In particular, organic acids may be incorporated into the base material to affect the flavor, sensory, or sensory stimuli properties of drugs such as nicotine, which may be combined with the base material. For example, organic acids such as levulinic acid, lactic acid, and pyruvic acid may be included in the base material together with nicotine in amounts up to equimolar (based on the total organic acid content). Any combination of organic acids may be preferred. For example, in some implementations, the base material may contain about 0.1 to about 0.5 moles of levulinic acid, about 0.1 to about 0.5 moles of pyruvate, about 0.1 to about 0.5 moles of lactic acid, or a combination thereof, per mole of nicotine, up to a concentration where the total amount of organic acids present is equimolar to the total amount of nicotine present in the base material. Various additional examples of organic acids that may be used to produce the base material are described in U.S. Patent Application Publication No. 2015 / 0344456 by Dull et al., which is incorporated in whole herein by reference.

[0162] The selection of such additional components may be variable based on factors such as the desired sensory characteristics of the smoking product, and this disclosure is intended to encompass any such additional components that are readily apparent to those skilled in the art of tobacco and tobacco-related or tobacco-derived products. See, in their entirety, Gutcho, Tobacco Flavoring Substances and Methods, Noyes Data Corp. (1972) and Leffingwell et al., Tobacco Flavoring for Smoking Products (1972), which are incorporated herein by reference.

[0163] In some implementations, the base material may include other materials having various unique characteristics or properties. For example, the base material may include plasticizing materials in the form of rayon or regenerated cellulose. Another example that may be suitable is viscose (commercially available as VISIL(R)), a regenerated cellulose product incorporating silica. Some carbon fibers may contain at least 95 percent or more carbon. Similarly, natural cellulose fibers such as cotton may be suitable, and natural cellulose fibers such as cotton may be impregnated with silica, carbon or metal particles, or treated with silica, carbon or metal particles to enhance flame retardancy and, in particular, minimize the release of any undesirable gas-releasing components that would adversely affect the flavor (in particular, minimize the possibility of any harmful gas-releasing products). To provide the desired flame retardancy, it may be possible to treat cotton with, for example, boric acid or various organophosphate compounds by immersion, spraying, or other techniques known in the art. These fibers may also be treated with organic or metal nanoparticles to impart desired flame-retardant properties without undesirable gas release or melting behavior (e.g., coating by immersion, spraying, or vapor deposition, injection, or both).

[0164] In the illustrated implementations, the base material may also include an aerosol-forming material, such as an aerosol precursor composition. In some implementations, the aerosol precursor composition may include one or more humectants, such as propylene glycol and glycerin. In various implementations, the amount of aerosol precursor composition used in the aerosol delivery device may be such that the aerosol delivery device exhibits acceptable sensory and sensory stimulation characteristics as well as desirable performance characteristics. For example, in some implementations, the aerosol precursor composition (e.g., glycerin and / or propylene glycol) can provide the generation of a visible mainstream aerosol that in many respects resembles the appearance of cigarette smoke. For example, the amount of aerosol precursor composition incorporated into the base material of a smoking product may be in the range of about 4.5 grams or less, 3.5 grams or less, about 3 grams or less, about 2.5 grams or less, about 2 grams or less, about 1.5 grams or less, about 1 gram or less, or about 0.5 grams or less. However, it should be noted that values ​​outside these ranges are possible in other implementations.

[0165] Representative types of additional aerosol precursor compositions are described in U.S. Patent No. 4,793,365 by Sensabaugh, Jr. et al., U.S. Patent No. 5,101,839 by Jakob et al., PCT International Publication No. 98 / 57556 by Biggs et al., and Chemical and Biological Studies on New Cigarette Prototypes that Heat Instead of Burn Tobacco, RJ Reynolds Tobacco Company Monograph (1988), the disclosure of which is incorporated herein by reference. In some embodiments, the aerosol source component may produce a visible aerosol when sufficiently heated (and cooled by air as necessary), and the aerosol source component may produce a “smoky” aerosol. In other embodiments, the aerosol source component may produce an aerosol that is substantially invisible but is perceived as present by other properties such as flavor or texture. Thus, the properties of the aerosol produced may vary depending on the specific components of the aerosol delivery component. In various implementations, the aerosol source component can be chemically simpler compared to the chemical properties of smoke produced by burning tobacco.

[0166] In some implementations, the aerosol precursor composition, also called the vapor precursor composition or "e-liquid," may contain a variety of components, including, for example, polyhydric alcohols (e.g., glycerin, propylene glycol, or mixtures thereof), nicotine, tobacco, tobacco extract, and / or flavorings. Several possible types of aerosol precursor components and formulations are described and characterized in U.S. Patent No. 7,217,320 by Robinson et al., U.S. Patent Publication No. 2013 / 0008457 by Zheng et al., U.S. Patent Publication No. 2013 / 0213417 by Chong et al., U.S. Patent Publication No. 2014 / 0060554 by Collett et al., U.S. Patent Publication No. 2015 / 0020823 by Lipowicz et al., and U.S. Patent Publication No. 2015 / 0020830 by Koller, as well as International Publication No. 2014 / 182736 by Bowen et al., and these disclosures are incorporated herein by reference. Other aerosol precursors that can be used include those incorporated into VUSE(R) products by RJReynolds Vapor Company, BLU(TM) products by Fontem Ventures BV, MISTIC MENTHOL products by Mistic Ecigs, MARK TEN products by Nu Mark LLC, JUUL products by Juul Labs, Inc., and VYPE products by CN Creative Ltd. Also possible is the so-called "smoke juice" for e-cigarettes, available from Johnson Creek Enterprises LLC.Further examples of possible aerosol precursor compositions are sold under the trademark names BLACK NOTE, COSMIC FOG, THE MILKMAN E-LIQUID, FIVE PAWNS, THE VAPOR CHEF, VAPE WILD, BOOSTED, THE STEAM FACTORY, MECH SAUCE, CASEY JONES MAINLINE RESERVE, MITTEN VAPORS, DR.CRIMMY'S V-LIQUID, SMILEY E LIQUID, BEANTOWN VAPOR, CUTTWOOD, CYCLOPS VAPOR, SICBOY, GOOD LIFE VAPOR, TELEOS, PINUP VAPORS, SPACE JAM, MT.BAKER VAPOR, and JIMMY THE JUICE MAN.

[0167] The amount of aerosol precursor incorporated into the aerosol source component is such that the aerosol generating component provides an acceptable sensation and desirable performance characteristics. For example, it is desirable to use a sufficient amount of aerosol-forming material to generate a visible mainstream aerosol that in many respects resembles the appearance of cigarette smoke. The amount of aerosol precursor in the aerosol generating system may be determined depending on factors such as the desired number of smoke inhalations per aerosol generating component. In one or more embodiments, the aerosol precursor composition may include about 0.5 ml or more, about 1 ml or more, about 2 ml or more, about 5 ml or more, or about 10 ml or more.

[0168] Referring back to Figures 8 and 9, the base material portion 410 includes a plurality of susceptor bands 470, each of which includes a plurality of susceptor coils 472, each of which comprises a resonant receiving section. In various configurations, the plurality of susceptor coils 472 may have various coil shapes, sizes, and materials that can be combined within the same susceptor band in some configurations. For example, in some configurations, the plurality of susceptor coils 472 may include metallic materials such as stainless steel (e.g., low-grade stainless steel), aluminum, or aluminum foil. In other examples, the plurality of susceptor coils 472 may include ferromagnetic materials, including, but not limited to, cobalt, iron, nickel, zinc, manganese, and any combination thereof. In additional configurations, the plurality of susceptor coils 472 may include other materials, including, for example, ceramic materials such as silicon carbide, carbon materials, and any combination of any of the above materials. In other configurations, the susceptor coils may include other conductive materials, such as metals like copper, alloys of conductive materials, or other materials with one or more conductive materials embedded inside. While the dimensions of the susceptor coils can vary, in some configurations, the diameter of the susceptor coils may be within a broad range of approximately 8.5 mm to 10 mm. Various susceptor coil lengths are possible.

[0169] In the illustrated implementation, changes in the current in the helical coil of the control body (i.e., the resonant transmitter), induced from the power source by the control component (e.g., via a driver circuit), generate localized magnetic flux and hysteresis effects in the multiple susceptor coils 472 (i.e., the resonant receivers), thereby providing localized heating in close proximity to the multiple susceptor coils 472. As described above, in some implementations, the control component may include an inverter or inverter circuit configured to convert the DC supplied by the power source into AC supplied to the resonant transmitter. In this topology, a three-circuit configuration may be used, with one circuit comprising a half-bridge rectifier, another circuit comprising a full-bridge rectifier, and a third circuit comprising a transformer capable of converting the DC signal into an AC signal.

[0170] In various implementations, both the multiple susceptor coils 472 and the transmitter helical coil may contain conductive material. For example, the helical coil and / or the multiple susceptor coils 472 may contain a variety of conductive materials, including metals such as copper or aluminum, alloys of conductive materials (e.g., diamagnetic, paramagnetic, or ferromagnetic materials), or other materials such as ceramics or glass with one or more conductive materials embedded inside. In some implementations, the multiple susceptor particles may be coated with or otherwise include a thermally conductive passivation layer (e.g., a thin layer of glass).

[0171] In some implementations, the multiple porous susceptor coils 472 contained in the aerosol source member may be complemented by additional / alternative resonant receivers. For example, in some implementations, the control body of the device may include separate resonant receivers, such as one or more receiver prongs. Examples of preferred configurations are described in U.S. Patent Application No. 15 / 799,365, filed October 31, 2017, which is incorporated herein by reference in its entirety.

[0172] Referring to Figure 9, the substrate portion 410 in some mounting configurations may also include a cover layer 454 arranged around the substrate material 448. In the illustrated mounting configurations, the cover layer 454 comprises a foil sublayer 456 and a paper sublayer 458, with the paper sublayer 458 arranged around the foil sublayer 456. In some mounting configurations, the foil sublayer and the paper sublayer may comprise a single laminate. In some mounting configurations, the paper sublayer may include paper or other fibrous material, such as cellulose material. The paper sublayer material may also include at least one filler material embedded or dispersed within the fibrous material. In various mounting configurations, the filler material may be in the form of water-insoluble particles. Furthermore, the filler material may incorporate inorganic components. In various mounting configurations, the paper sublayer may be formed from multiple layers, such as an underlying bulk layer, and an on top layer, such as the wrapping paper typical in cigarettes. Such materials may include, for example, lightweight “rag fibers” such as flax, hemp, sisal, rice straw, and / or esparto. Various types of paper materials are described in U.S. Patent No. 5,105,838 by White et al., U.S. Patent No. 5,271,419 by Arzonico et al., U.S. Patent No. 5,220,930 by Gentry, U.S. Patent No. 6,908,874 by Woodhead et al., U.S. Patent No. 6,929,013 by Ashcraft et al., U.S. Patent No. 7,195,019 by Hancock et al., U.S. Patent No. 7,276,120 by Holmes, U.S. Patent No. 7,275,548 by Hancock et al., PCT International Publication No. 01 / 08514 by Fournier et al., and PCT International Publication No. 03 / 043450 by Hajaligol et al., which are incorporated herein by reference in their entirety. In some configurations, the paper material may include commercially available materials such as RJReynolds Tobacco Company grades 119, 170, 419, 453, 454, 456, 465, 466, 490, 525, 535, 557, 652, 664, 672, 676, and 680 from Schweitzer-Maudit International. In the illustrated configuration, the foil sublayer 352 includes a metallic foil material such as aluminum foil.However, in other mounting configurations, the foil sublayer may include, but is not limited to, other materials including copper, tin, gold, graphene, graphite, or other thermally conductive carbon-based materials and / or any combination thereof. While various thicknesses are possible, in some mounting configurations, the cover layer may have a thickness in a comprehensive range of approximately 1 mm to approximately 3 mm.

[0173] Although the control unit in the implementation shown in Figure 3 is shown to be substantially cylindrical, this disclosure is not limited to aerosol delivery devices having such a shape. For example, an alternative implementation is shown in Figure 10. Similar to the implementation described with respect to Figure 3, the implementation shown in Figure 10 includes an aerosol delivery device 500 comprising a control body 502 configured to receive an aerosol source member 504. In various implementations, the aerosol source member 504 may have a configuration similar to that of the aerosol source members 104, 204 described above, and may include several similar components (as well as variations of similar configurations and components). Accordingly, a suitable description of these configurations and components (as well as variations of configurations and components) is referred to. As described above, the aerosol source member 504 may comprise a heated end 506 configured to be inserted into the control body 502 and a suction end 508 for the user to draw in to generate an aerosol. The control unit 502 may comprise a housing 518 containing an opening 519 defined within the housing, a flow sensor (not shown, e.g., a smoke sensor or a pressure switch), control components 522 (e.g., a microprocessor, individually or as part of a microcontroller, a printed circuit board (PCB) containing the microprocessor and / or microcontroller), and a power source 524 (e.g., a battery, which may be rechargeable, and / or a rechargeable supercapacitor). Examples of power sources, sensors, and various other possible electrical components are described above with respect to the exemplary implementation shown in Figure 3.

[0174] Similar to the implementation configuration in Figure 3, the control body 502 in the implementation configuration shown in Figure 10 includes a resonant transmitter that, together with the resonant receiver, forms a resonant transformer. The resonant transformer in various implementation configurations of this disclosure can take various forms, including implementation configurations in which one or both of the resonant transmitter and resonant receiver are located within the control body and / or aerosol delivery device. In the particular implementation configuration shown in Figure 6, the resonant transmitter comprises a helical coil 528. In various implementation configurations, the helical coil may be constructed from a conductive material. In further implementation configurations, the helical coil may include a non-conductive insulating cover / wrap material. In some implementation configurations, the resonant transmitter may surround a transmitter support member (such as a transmitter support cylinder), but in the illustrated embodiment, the coil itself forms a cylindrical structure. For example, in the illustrated implementation configuration, the individual coils of the helical coil 528 are close to each other so that the helical coil 528 effectively forms a cylindrical shape.

[0175] Although not shown in the illustrated implementation, in various other implementations, the control body may include one or more positioning mechanisms located therein, which, together with or instead of the opening in the housing, can facilitate the proper positioning of the aerosol source member when the aerosol source member is inserted into the control body. For example, in a further implementation, the control body of the illustrated implementation may include a positioning cylinder extending from the opening in the housing through a helical coil, such that the inner diameter of the positioning cylinder is slightly larger than or approximately equal to the outer diameter of the corresponding aerosol source member (e.g., to form a sliding fit), and as a result the positioning cylinder can guide the aerosol source member to the proper position relative to the control body.

[0176] In another embodiment, the disclosure may relate to a kit providing various components as described herein. For example, a kit may comprise a control body having one or more aerosol source members. A kit may further comprise a control body having one or more charging components. A kit may further comprise a control body having one or more batteries. A kit may further comprise a control body having one or more aerosol source members and one or more charging components and / or one or more batteries. In a further implementation, a kit may comprise a plurality of aerosol source members. A kit may further comprise a plurality of aerosol source members and one or more batteries and / or one or more charging components. In the above implementations, the aerosol source members or control body may comprise heating members contained therein. A kit of the present invention may further comprise a case (or other packaging, transport or storage component) for housing one or more of the additional kit components. The case may be a reusable hard container or a soft container. Furthermore, the case may be a simple box or other packaging structure.

[0177] Those skilled in the art, who have an interest in the teachings shown in the above description and the associated drawings, will likely envision many modifications and other implementations of the disclosure. Therefore, it should be understood that the disclosure is not limited to any specific implementation disclosed herein, and that modifications and other implementations are intended to be included within the scope of the appended claims. While specific terms are used herein, they are used in a general and descriptive sense only and not for limitation.

Claims

1. An aerosol source member for use with an induction heating aerosol delivery device having a resonant transmitting unit, wherein the aerosol source member is An aerosol source member comprising a base material portion having a defined longitudinal axis and including a plurality of spaced-apart susceptor bands, each susceptor band comprising a plurality of susceptor coils radially spaced around the longitudinal axis of the base material portion, each susceptor coil having a defined longitudinal axis, and the longitudinal axis of each of the plurality of susceptor coils being substantially parallel to the longitudinal axis of the base material portion.

2. The aerosol source member according to claim 1, wherein multiple susceptor bands are substantially evenly spaced apart.

3. The aerosol source member according to claim 1, wherein multiple susceptor coils within each susceptor band are substantially evenly spaced apart.

4. The aerosol source member according to claim 1, wherein the plurality of susceptor coils include cobalt, iron, nickel, and combinations thereof.

5. An aerosol source member for use with an induction heating aerosol delivery device having a resonant transmitting unit, wherein the aerosol source member is An aerosol source member comprising a base portion containing a plurality of separated susceptor bands, each susceptor band extending through the center of the base portion across its diameter, and each susceptor band containing a plurality of separated susceptor particles.

6. The aerosol source member according to claim 5, wherein multiple susceptor particles are substantially aligned within each susceptor band.

7. The aerosol source member according to claim 5, wherein multiple susceptor bands are substantially evenly spaced apart.

8. The aerosol source member according to claim 5, wherein multiple susceptor particles are substantially evenly separated within each susceptor band.

9. The aerosol source member according to claim 1, or the aerosol source member according to claim 5, further comprising a cover layer disposed around the base material portion.

10. An aerosol source member for use with an induction heating aerosol delivery device having a resonant transmitting unit, wherein the aerosol source member is The core part, The surrounding parts arranged around the core part, A cover layer is placed around the surrounding area, It comprises a base material portion having the following An aerosol source member comprising a core portion containing a plurality of susceptor particles substantially evenly distributed therein and having a first distribution density, and a surrounding layer containing a plurality of susceptor particles substantially evenly distributed therein and having a second distribution density, wherein the first distribution density is greater than the second distribution density.

11. The aerosol source member according to claim 10, wherein the core portion and the surrounding portion comprise the same base material having different susceptor particle distribution densities.

12. The aerosol source member according to claim 10, wherein the core portion and the surrounding portion comprise separate substrate layers having different susceptor particle distribution densities.

13. The aerosol source member according to claim 1, or the aerosol source member according to claim 5, or the aerosol source member according to claim 10, wherein the cover layer comprises a foil sublayer and a paper sublayer disposed around the foil sublayer.

14. The aerosol source member according to claim 5, or the aerosol source member according to claim 10, wherein at least one of the plurality of susceptor particles has a shape selected from a flaky shape, a spherical shape, a hexagonal shape, a cubic shape, and an irregular shape.

15. The aerosol source member according to claim 5, or the aerosol source member according to claim 10, wherein at least one of the plurality of susceptor particles comprises a material selected from cobalt material, iron material, nickel material, zinc material, manganese material, stainless steel material, ceramic material, silicon carbide material, carbon material, and combinations thereof.

16. The aerosol source member according to claim 1, or the aerosol source member according to claim 5, or the aerosol source member according to claim 10, wherein the base material portion includes an extruded tobacco material.

17. The aerosol source member according to claim 1, or the aerosol source member according to claim 5, or the aerosol source member according to claim 10, wherein the base material portion includes a reconstituted tobacco sheet material.

18. The aerosol source member according to claim 1, or the aerosol source member according to claim 5, or the aerosol source member according to claim 10, wherein the base material portion comprises at least one of tobacco beads and tobacco powder.

19. The aerosol source member according to claim 1, or the aerosol source member according to claim 5, or the aerosol source member according to claim 10, wherein the aerosol source member has a cylindrical shape.

Images