WO2025229593A1

WO2025229593A1 - Aerosol generating device with leakage-resistant cartridge

Info

Publication number: WO2025229593A1
Application number: PCT/IB2025/054582
Authority: WO
Inventors: Vijaya VITTAL; Akash Mulemajalu Dinesh
Original assignee: ITC Ltd
Current assignee: ITC Ltd
Priority date: 2024-05-02
Filing date: 2025-05-01
Publication date: 2025-11-06
Anticipated expiration: 2026-11-02

Abstract

The present disclosure relates to an aerosol generating device (102) with a leakage-resistant cartridge or a cartridge (104) which can include a liquid storage tank (104-2) to store an aerosol-generating substrate. A heater assembly (106) of the cartridge (104) is operatively coupled to the liquid storage tank (104-2) and can include a heater (106-1) to heat the aerosol-generating substrate. A heater holder 106-3 of the heater assembly (106) can hold the heater (106-1). The cartridge can include a component (106-2) and a sleeve (108). The sleeve (108) can be positioned between a first surface (206) of the liquid storage tank (104-2) and a second surface (208) of the component (106-2), and compressive force is applied to the sleeve (108) along a longitudinal axis (104-4) of the cartridge (104) thereby forming a horizontal interface (110-1).

Description

AEROSOL GENERATING DEVICE WITH LEAKAGE-RESISTANT CARTRIDGE

TECHNICAL FIELD

[0001] The present disclosure relates to the field of aerosol generating device. More particularly, the present disclosure relates to an aerosol generating device by providing a leakage-resistant cartridge contained therein.

BACKGROUND

[0002] Background description includes information that may be useful in understanding the present disclosure. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed disclosure, or that any publication specifically or implicitly referenced is prior art.

[0003] An aerosol generating device is a battery-operated device using an aerosol generating substrate (aerosol generating liquid), which upon heating, may generate aerosol. The aerosol generating devices are available in various shapes and sizes. The aerosol generating devices generally are rechargeable type with replaceable cartridges. The aerosol generating substrate tends to leak from a liquid storage tank of the cartridge. The aerosol generate substrate may leak through the inner side walls of the cartridge into other parts of atomizer unit/heater assembly, and also into the airflow path and the battery side or device side of the aerosol generating devices. In order to address the said issue, various other types of cartridges have been developed with varying internal designs.

[0004] Prior art document CN 213,486,866 U titled “Microphone structure and aerosol generating device of leak protection liquid” discloses a microphone structure placed in the aerosol generating device, which prevents the leakage of the oil/liquid substrate from the cartridge towards the battery side. The microphone structure is present on the device/battery side. By suitable means, an interface between a chassis and an outer body of the aerosol generating device is provided as a sealing to prevent the liquid flow from the cartridge towards the battery side.

[0005] Another prior art document CN 218,898,340 U, titled “Atomizer and aerosol generating device” discloses a spacer used near the atomizer which is a ‘silicon sleeve’. An actuating piece can drive an atomizing core to move or rotate to a first position, so that a liquid inlet hole on the atomizing core is sealed by a separating piece, atomized liquid in a liquid storage cavity cannot enter the atomizing cavity through the liquid inlet hole to realize liquid core separation, and long-term dipping of the atomized liquid is avoided to pollute a heating device in the atomizing cavity.

[0006] Currently, various aerosol generating devices are available in the market which encounter the following limitations: The aerosol generating substrate leakage occurring from the inner side walls of the cartridge is high. Further, the aerosol generating liquid leakage into the airflow path can reach the user’s mouth end, thereby causing an unpleasant experience to the user. The liquid flows down into the mouth of the user while using the aerosol generating device. The liquid gets deposited inside the cartridge part of the said aerosol generating device due to leakage. Thus, there arises a need for frequent replacement of cartridges.

[0007] Further, the seal in existing aerosol generating devices cover one end of a member (for example, a heater assembly) and the member/the heater assembly is circumferentially surrounded by a side wall of the seal. Therefore, during assembly process, when the seal is squeezed against inner side wall of the cartridge a vertical interface is formed between the seal and inner circumferential surface of the inner side wall of the cartridge. Thus, contact surface/meeting surface between the seal and the inner side wall of the cartridge is circumferential or the vertical interface contact which is an inefficient method. Further, in the existing aerosol generating devices, force applied to the seal can be in a direction perpendicular to the side wall of the cartridge or to the circumferential contact (vertical interface contact) resulting in a loose coupling of the seal with the cartridge which results in leakage of the aerosol generating substrate.

[0008] There is therefore a need in the art to develop a cost effective and portable aerosol generating device to prevent leakage of the aerosol generating substrate by providing a leakage-resistant cartridge, which enhances the user experience.

OBJECTS OF THE PRESENT DISCLOSURE

[0009] Some of the objects of the present disclosure, which at least one embodiment herein satisfies, are as listed herein below.

[0010] It is an object of the present disclosure to provide an improved aerosol generating device with a leakage-resistant cartridge.

[0011] It is an object of the present disclosure to provide an aerosol generating device, with a leakage-resistant cartridge, which is lightweight, portable and reliable. [0012] It is an object of the present disclosure to provide an aerosol generating device with a leakage-resistant cartridge, where assembling of a sleeve is easy during an assembly process. The sleeve is used as sealing in the aerosol generating device to avoid leakage.

[0013] It is an object of the present disclosure to provide an aerosol generating device with a leakage-resistant cartridge, which provides zero leakage of the aerosol generating substrate, thereby providing enhanced life for the aerosol generating device.

[0014] It is an object of the present disclosure to provide an aerosol generating device with a leakage-resistant cartridge, which prevents messy leaks that can occur with traditional cartridges.

[0015] It is an object of the present disclosure to provide an aerosol generating device with a leakage-resistant cartridge, which reduces the maintenance as the users do not have to deal with cleaning up leaks or worrying about damage to the aerosol generating device, reducing the need for maintenance and increasing the longevity of the aerosol generating device.

[0016] It is an object of the present disclosure to provide an aerosol generating device with a leakage-resistant cartridge, which ensures that all the aerosol generating substrate is consumed at its fullest, thus preventing wastage and thereby being very cost-effective for the user.

SUMMARY

[0017] Within the scope of this application, it is expressly envisaged that the various aspects, embodiments, examples, and alternatives set out in the preceding paragraphs, in the claims and/or in the following description and drawings, and particularly the individual features thereof, may be taken independently or in any combination. Features described in connection with one embodiment are applicable to all embodiments unless such features are incompatible.

[0018] The present disclosure relates to an aerosol generating device. More particularly, the present disclosure relates to the aerosol generating device by providing a leakage-resistant cartridge contained therein.

[0019] In an aspect, the aerosol generating device can include a cartridge. The cartridge can include a liquid storage tank to store an aerosol-generating substrate. The aerosol generating device can further include a heater assembly which is operatively coupled to the liquid storage tank and having a heater to heat the aerosol-generating substrate. The heater assembly can include a heater holder to hold the heater. The cartridge can include a component and a sleeve. The liquid storage tank can have a first side which defines a first surface. The component can have a first side which defines a second surface. The sleeve is positioned between the first surface and the second surface. Compressive force is applied to the sleeve along a longitudinal axis of the cartridge to form a sealed horizontal interface. Further, a set of positioning structures are formed on a top side of the sleeve and a bottom side of the sleeve to lock the sleeve between the first surface of the liquid storage tank and the second surface of the component, thereby forming the sealed horizontal interface to prevent leakage from the cartridge. The set of positioning structures are a set of peripheral ridges.

[0020] In another aspect, the component can be any one or a combination of the heater assembly, heater holder, plastic component that supports the sleeve.

[0021] In another aspect, the first side of the liquid storage tank is provided with a first positioning structure and the first side of the component is provided with a second positioning structure.

[0022] In another aspect, the first side of the liquid storage tank is a bottom side of the liquid storage tank and the first side of the component is a top side of the component.

[0023] In another aspect, the cartridge can have the longitudinal axis extending along a length of the cartridge.

[0024] In another aspect, the aerosol generating device can include a mouthpiece to deliver generated aerosol to a user. The sleeve can be made of a food-grade silicone material, including but not limited to high-temperature food-grade silicone, Food and Drug Administration (FDA) and United States Pharmacopeia (USP) class VI certified silicone, and Liquid Silicone Rubber (LSR).

[0025] In yet another aspect, the sleeve can have a shape including but not limited to circular, semi-circular, oval and polygonal, which may include hexagonal, octagonal, rectangular, square, or a custom shape.

[0026] In yet another aspect, the set of positioning structures or the set of peripheral ridges can have a shape including but not limited to circular, semi-circular, arc-shaped, oval and polygonal, hexagonal, octagonal, rectangular, square, sawtooth, serrated, wavy, undulating, multi-layered, or stepped.

[0027] In yet another aspect, a height of each peripheral ridge of the set of peripheral ridges can range between 0.1 mm to 3 mm. The aerosol generating device can be a rechargeable battery type aerosol generating device. [0028] In yet another aspect, the aerosol-generating substrate is selected from any or a combination of propylene glycol (PG) and glycerin solution, a vegetable glycerin (VG), flavorings, and active compounds..

[0029] In an aspect, a method to prevent leakage from a cartridge can includes: storing an aerosol generating substrate in a liquid storage tank of the cartridge, operatively coupling by a heater assembly of the cartridge to the liquid storage tank, supporting, by the component of the cartridge, a sleeve and forming, by the sleeve of the cartridge, a horizontal interface, wherein the sleeve is positioned between a first surface and a second surface, wherein the first surface is defined by a first side of the liquid storage tank and the second surface is defined by a first side of the component and compressive force is applied to the sleeve along the longitudinal axis of the cartridge.

[0030] Various objects, features, aspects, and advantages of the inventive subject matter will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like components.

BRIEF DESCRIPTION OF DRAWINGS

[0031] The accompanying drawings, which are incorporated herein, and constitute a part of this disclosure, illustrate exemplary embodiments of the disclosed methods and systems which like reference numerals refer to the same parts throughout the different drawings. Components in the drawings are not necessarily to scale; emphasis is instead placed upon clearly illustrating the principles of the present disclosure. Some drawings may indicate the components using block diagrams and may not represent the internal circuitry of each component. It will be appreciated by those skilled in the art that the disclosure of such drawings includes the disclosure of electrical components, electronic components or circuitry commonly used to implement such components.

[0032] FIG. 1 illustrate exemplary representation of a block diagram representing a proposed aerosol generating device with a leakage-resistant cartridge, in accordance with an exemplary embodiment of the present disclosure.

[0033] FIG. 2 illustrates a front view and an exploded view of the architecture of the proposed cartridge (leakage-resistant cartridge) before getting assembled, in accordance with an exemplary embodiment of the present disclosure.

[0034] FIG. 3 and FIG. 4 illustrate exploded view of the proposed cartridge in two opposite directions, in accordance with an exemplary embodiment of the present disclosure. [0035] FIGs. 5 (A-B) illustrates a cross section architecture of the leakage-resistant cartridge of the proposed aerosol generating device after assembly condition, in accordance with an embodiment of the present disclosure.

[0036] FIGs. 6 (A-B) illustrate exemplary representations of a top view and an isometric view, respectively, of a sleeve, in accordance with an exemplary embodiment of the present disclosure.

[0037] FIG. 7 illustrates an exemplary representation of a cross-section architecture of the sleeve, in accordance with an embodiment of the present disclosure.

[0038] FIGs. 8 (A-B) illustrate exemplary representations of cross-section architecture of the sleeve in a polygonal shape, in accordance with an embodiment of the present disclosure.

[0039] FIG. 9 illustrates an exemplary representation of a cross-section architecture of the sleeve in the polygonal shape, in accordance with an embodiment of the present disclosure.

[0040] FIG. 10 illustrates an exemplary representation of a method of preventing leakage from the cartridge, in accordance with an embodiment of the present disclosure.

[0041] Other objects, advantages, and novel features of the disclosure will become apparent from the following more detailed description of the present embodiment when taken in conjunction with the accompanying drawings.

DETAILED DESCRIPTION

[0042] The following is a detailed description of embodiments of the disclosure depicted in the accompanying drawings. The embodiments are in such detail as to clearly communicate the disclosure. However, the amount of detail offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure as defined by the appended claims.

[0043] In the following description, numerous specific details are set forth in order to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to one skilled in the art that embodiments of the present disclosure may be practiced without some of these specific details.

[0044] If the specification states a component or feature “may”, “can”, “could”, or “might” be included or have a characteristic, that particular component or feature is not required to be included or have the characteristic.

[0045] As used in the description herein and throughout the claims that follow, the meaning of “a,” “an,” and “the” includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of “in” includes “in” and “on” unless the context clearly dictates otherwise.

[0046] The use of “including”, “comprising” or “having” and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. The terms “a” and “an” herein do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced items. Further, the use of terms "first", "second", "third", and the like, herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.

[0047] Groupings of alternative elements or embodiments of the disclosure disclosed herein are not to be construed as limitations. Each group member can be referred to and claimed individually or in any combination with other members of the group or other elements found herein. One or more members of a group can be included in, or deleted from, a group for reasons of convenience and/or patentability. When any such inclusion or deletion occurs, the specification is herein deemed to contain the group as modified thus fulfilling the written description of all groups used in the appended claims.

[0048] Exemplary embodiments will now be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments are shown. This disclosure may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete and will fully convey the scope of the disclosure to those of ordinary skill in the art. Moreover, all statements herein reciting embodiments of the disclosure, as well as specific examples thereof, are intended to encompass both structural and functional equivalents thereof. Additionally, it is intended that such equivalents include both currently known equivalents as well as equivalents developed in the future (i.e., any elements developed that perform the same function, regardless of structure).

[0049] The present disclosure relates to the field of aerosol generating devices (the terms “aerosol generating device”, and “proposed aerosol generating device” are used interchangeably hereinafter). More particularly, the present disclosure relates to an improved aerosol generating device by providing a leakage-resistant cartridge.

[0050] FIG. 1 illustrate exemplary representation of a block diagram 100 representing a proposed aerosol generating device 102 with a leakage-resistant cartridge 104 or a cartridge 104, in accordance with an exemplary embodiment of the present disclosure.

[0051] As illustrated, in an embodiment, referring to FIG. 1, the proposed aerosol generating device 102 aerosolizes an aerosol-generating substrate to be inhaled by the user. The aerosol generating device 102 can include the cartridge 104, a power source 118 a and a control circuit 118b.

[0052] The cartridge 104 (also referred as the leakage-resistant cartridge 104) includes a liquid storage tank 104-2 to store the aerosol-generating substrate, a heater assembly 106, a component 106-2 and a sleeve 108. The heater assembly 106 can include a heater 106-1 connected to the liquid storage tank 104-2 of the cartridge 104 to heat the aerosol-generating substrate. The heater assembly 106 can further include a heater holder 106-3 to securely hold the heater 106-1 to ensure optimal positioning and stability during operation. The cartridge 104 can include the component 106-2 to hold or support the sleeve 108. The component 106- 2 can be any one or a combination of the heater assembly 106, heater holder 106-3, plastic component that can support the sleeve 108.

[0053] In an embodiment, the liquid storage tank 104-2 can have a first side 202 which defines a first surface 206. Further, the component 106-2 can have a first side 204 which defines a second surface 208.

[0054] In an embodiment, the cartridge 104 of the aerosol generating device 102 can include the sleeve 108, which is positioned between the first surface 206 of the liquid storage tank 104-2 of the cartridge 104 and the second surface 208/top surface of the component 106-2 to form a horizontal interface 110-1 (the terms "interface", "horizontal interface” and “sealed horizontal interface” used interchangeably hereinafter). The sleeve 108 functions as a barrier element that contributes to the formation of a sealed horizontal interface (110-1). The sleeve 108 can be constructed from materials such as heat-resistant polymers, silicone, or other elastomeric compounds that provide durability and sealing effectiveness under operational conditions.

[0055] In an embodiment, the aerosol generating device 102 can include a set of positioning structures which can be a set of peripheral ridges 110 (collectively referred herein as “peripheral ridges 110” or “ridges 110” hereinafter) formed on a top side and a bottom side of the sleeve 108. The peripheral ridges 110 facilitate the locking of the sleeve 108 between the first surface 206 of the liquid storage tank 104-2 and the second surface 208 of the component 106-2. This locking arrangement ensures a stable and the sealed horizontal interface (110-1), which is crucial to preventing leakage from the cartridge 104 during the aerosol generation process. The peripheral ridges 110 can be configured in various geometries, such as but not limited to annular rings, segmented ridges, or interlocking profiles, to enhance the sealing and locking effect. [0056] In an embodiment, the cartridge 104 can have a longitudinal axis 104-4 extending along a length of the cartridge 104.

[0057] In an embodiment, the cartridge 104 can have a horizontal axis 104-6 extending along a width or a breadth of the cartridge 104 and the sleeve 108 is positioned horizontally along the horizontal axis 104-6 between the first surface 206 and the second surface 208.

[0058] In certain embodiments, the cartridge 104 can further include a mouthpiece 112 to deliver the generated aerosol to a user. The mouthpiece 112 can be made of a material selected from, without any limitations, any medical-grade plastics, silicone, or other biocompatible materials that are safe for inhalation purposes. The mouthpiece 112 can be formed depending on the design requirements and intended use. The mouthpiece 112 can also include features such as airflow channels, condensation chamber, or filters to improve the quality and safety of the inhaled aerosol.

[0059] In another embodiment, the aerosol generating device 102 can further include, a sensor 116, a Light Emitting Diode (LED) indicator 114, a power source 118a, and an external casing 120. A leakage-resistant cartridge 104 of the aerosol generating device 102 can be structured that minimizes the chances of aerosol-generating substrate leaking out. The aerosol-generating substrate is used in the aerosol generating device 102 to generate the aerosol. The aerosol-generating substrate can include a base mixture of propylene glycol (PG) and vegetable glycerin (VG) along with suitable active compounds. The aerosolgenerating substrate can include, but is not limited to, a flavor, an active compound that is derived from natural (e.g. plant alkaloids) and/or synthetic sources, and the like in varying concentrations.

[0060] In another embodiment, the aerosol generating device 102 can include the mouthpiece 112 of the aerosol generating device 102 which can be configured at the top of the aerosol generating device 102, where the aerosol is drawn into the user's mouth. In general, the structure of the mouthpiece 112 can vary depending on the style and design of the aerosol generating device 102. In such embodiment the structure of the mouthpiece 112 can include, but is not limited to: a narrow and tube-like structure, a wider structure, a flat structure, and the like. The mouthpiece 112 may be removable for cleaning or replacement and can be made of materials that include, but are not limited to plastic, metal, silicone, and the like.

[0061] In another embodiment, the cartridge 104 can include the liquid storage tank 104-2 (also referred as liquid substrate reservoir, reservoir, container and the like hereinafter) to hold the aerosol generating substrate. The cartridge 104 is refillable in certain aerosol generating devices 102, while in other aerosol generating devices 102, the cartridge 104 is a disposable cartridge.

[0062] In another embodiment, the aerosol generating device 102 can include the sleeve 108 which can be placed inside the cartridge 104, where sleeve 108 can be fixed as the peripheral shape of the cartridge 104. The proposed design describes the cartridge 104 assembled with the sleeve 108 to prevent the leakage of the aerosol-generating substrate, which in turn will avoid the leakage of the aerosol-generating substrate into the aerosol generating device 102 or any other components within or outside the aerosol generating device 102. The sleeve 108 can be used as sealing in the aerosol generating device 102 to avoid leakage which forms the horizontal interface 110-1 between the first surface 206 of the liquid storage tank 104-2 and the second surface 208 of the component 106-2 of the aerosol generating device 102. The sleeve 108 has the set of peripheral ridges 110 (terms “peripheral ridge”, “ridge” or “set of peripheral ridges” are used interchangeably hereinafter) on the top and bottom side to lock its position as the interface (110-1) between the first surface 206 of the liquid storage tank 104-2 and the second surface 208 of the component 106-2. The transition fit of sleeve 108 will provide adherence when it comes in surface contact with the inner walls of the cartridge body.

[0063] In another embodiment, the aerosol generating device 102 can include the sensor 116 which detects automatic activation of heating element of the aerosol generating device 102 when the user inhales. In some aerosol generating device 102, the sensor 116, can be replaced by a manual button which is pressed by user to activate the aerosol generating device 102.

[0064] In another embodiment, the aerosol generating device 102 can include the heater assembly 106 operatively coupled to the liquid storage tank 104-2 and having a heater 106-1 to heat the aerosol-generating substrate to generate aerosol to be inhaled by the user. In an embodiment, the heater 106-1 can be a ceramic heater. In an embodiment, the heater assembly 106 can include a coil, and a wicking material. When the aerosol generating device 102 is activated, the power source 118a transmits power to coil in order to heat up. The wicking material absorbs liquid from reservoir/ the liquid storage tank 104-2 and delivers it to the coil, where it is aerosolized. The wicking material can be selected from but not limited to silica, cotton, ceramic, stainless steel mesh, ekowool, bamboo fiber, and the like. The aerosol is then inhaled by the user through the mouthpiece 112.

[0065] In another embodiment, the aerosol generating device 102 can include the light emitting diode (LED) which displays a light indicating one or more states of the aerosol generating device 102. One or more state can include, but are not limited to: a usage state, a charging state, a low battery state, and the like.

[0066] In another embodiment, the aerosol generating device 102 can include the control circuit 118b which may be electrically connected to the power source 118a and to the heater assembly 106. Upon actuation of the aerosol generating device 102, the power source 118a can transmit the electric current through the heater assembly 106, which results in heating -up of the heater 106-1.

[0067] In another embodiment, the aerosol generating device 102 can include the airflow control mechanism that allows the user to adjust the airflow through the aerosol generating device 102. Thus, it allows the users to customize the aerosolizing experience by controlling the amount of air that mixes with the aerosol as they inhale. The airflow control mechanism typically involves a ring or dial on the aerosol generating device 102 that can be adjusted to open or close vents or airflow channels. By adjusting the airflow, users can achieve an easier draw, which can affect the temperature, density etc.

[0068] In another embodiment, the aerosol generating device 102 can include a battery which is the power source 118a of the aerosol generating device 102, usually a rechargeable lithium-ion battery. The battery provides the electricity required to heat the heater and aerosolize the aerosol-generating liquid. The external casing 120 of the aerosol generating device 102 refers to the outer shell or housing that encloses the internal components of the aerosol generating device 102. Further, the external casing 120 plays a crucial role in managing functionality and aesthetics of the aerosol generating device 102 along with user experience.

[0069] In another embodiment, the aerosol generating device 102 can include the cartridge 104 with the reservoir or the liquid storage tank 104-2, the sleeve 108 and an outlet in the reservoir or the liquid storage tank 104-2. The housing can include the cartridge 104 which includes the heater assembly 106. In one embodiment, the sleeve 108 can be positioned between the reservoir or the liquid storage tank 104-2 and the heater assembly 106 to prevent leakage of the aerosol-generating substrate from the reservoir/the liquid storage tank 104-2. In an embodiment, the sleeve 108 can be positioned between the bottom surface of the reservoir or the liquid storage tank 104-2 and the heater assembly 106 to prevent leakage of the aerosol-generating substrate.

[0070] In yet another embodiment, the aerosol generating device 102 can be utilized in a variety of applications. The aerosol generating device 102 can be implemented for single-use or multiple-use scenarios, and the members such as the cartridge 104, the heater assembly 106, the sleeve 108, and the mouthpiece 112 can be adapted accordingly to meet regulatory, safety, and performance standards. The other embodiments of the aerosol generating device 102 can incorporate additional features, such as airflow control mechanisms, temperature sensors, or user interface elements, to enhance usability and functionality.

[0071] FIG. 2 illustrates a front view and an exploded view 200 of the architecture of the proposed cartridge (leakage-resistant cartridge) 104 before getting assembled, in accordance with an exemplary embodiment of the present disclosure.

[0072] FIGs. 3 and 4 illustrate exploded view 300 and 400 of the proposed cartridge 104 in two opposite directions, in accordance with an exemplary embodiment of the present disclosure.

[0073] Referring to FIGs. 2, 3 and 4, in an embodiment, the cartridge 104 can include a housing which can include the liquid storage tank 104-2, the heater assembly 106, the sleeve 108 and the component 106-2.

[0074] The liquid storage tank 104-2 is configured to store an aerosol generating substrate or aerosol generating liquid. The liquid storage tank 104-2 can have a first side 202 which can include a first surface 206. The first surface 206 extends along the first side 202 of the liquid storage tank 104-2 and perpendicular to the longitudinal axis 104-4 of the cartridge 104. Further, the first side 202 of the liquid storage tank 104-2 can be a bottom side or a bottom wall or bottom of the liquid storage tank 104-2. Further, the first surface 206 of the liquid storage tank 104-2 can be a bottom surface of the of the liquid storage tank 104-2.

[0075] Further, the first side 202 of the liquid storage tank 104-2 is provided with a first positioning structure, i.e., the bottom side of the liquid storage tank 104-2 is provided with the first positioning structure. In an embodiment, the first positioning structure provided on the first side 202/ the bottom side of the liquid storage tank 104-2 is one of a groove or a peripheral groove or plurality of groove s/peripheral grooves. In another embodiment, the first positioning structure provided on the first side 202/ the bottom side of the liquid storage tank 104-2 can be a ridge or a peripheral ridge or plurality of ridges/peripheral ridges.

[0076] The component 106-2 is configured to support the sleeve 108. The component 106-2 can be any one or a combination of the heater assembly 106, heater holder 106-3, plastic component that can support the sleeve 108. Further, the component 106-2 can have a first side 204 which can include a second surface 208. The second surface 208 extends along the first side 204 of the component 106-2 and perpendicular to the longitudinal axis 104-4 of the cartridge 104. Further, the first side 204 of the component 106-2 can be a top side or a top wall or top of the component 106-2. Further, the second surface 208 of the component 106-2 can be a top surface of the of the component 106-2.

[0077] Further, the first side 204 of the component 106-2 is provided with a second positioning structure, i.e., the top side of the component 106-2 is provided with the second positioning structure. In an embodiment, the second positioning structure provided on the first side 204 or the top side of the component 106-2 is one of a groove or a peripheral groove or plurality of grooves/peripheral grooves. In another embodiment, the second positioning structure provided on the first side 204/ the top side of the component 106-2 can be one of a ridge or a peripheral ridge or plurality of ridges/peripheral ridges.

[0078] The component 106-2 can be any one or a combination of the heater assembly 106, the heater holder 106-3, the plastic component that can support the sleeve 108. In an embodiment, the component 106-2 can be the heater holder 106-3.

[0079] Further, during an assembly condition of the proposed cartridge 104, the sleeve 108 is positioned between the first surface 206 and the second surface 208, and compressive force is applied to the sleeve 108 along the longitudinal axis 104-4 of the cartridge 104 to form a sealed horizontal interface 110-1 to prevent leakage of the aerosol generating substrate from the liquid storage tank 104-2.

[0080] Further, a set of positioning structures are formed/provided on a top side of the sleeve 108 and a bottom side of the sleeve 108 to lock the sleeve 108 between the first surface 206 of the liquid storage tank 104-2 and the second surface 208 of the component 106-2. In an embodiment, the set of positioning structures are a set of peripheral ridges (110). In another embodiment, the set of positioning structures are a set of peripheral grooves.

[0081] In an embodiment, during the assembly condition, the peripheral ridge 110 on the top side of the sleeve 108 is locked/fitted into the groove provided on the bottom side of the liquid storage tank 104-2. Further, the peripheral ridge 110 on the bottom side of the sleeve 108 is locked/fitted into the groove provided on the top side of the component 106-2.

[0082] In another embodiment, during the assembly condition, the groove or the peripheral groove on the top side of the sleeve 108 is locked/fitted into the ridge provided on the bottom side of the liquid storage tank 104-2. Further, the groove or the peripheral groove on the bottom side of the sleeve 108 is locked/fitted into the ridge provided on the top side of the component 106-2.

[0083] FIGs. 5 (A-B) illustrates a cross section architecture 500 of the leakage-resistant cartridge 104 of the proposed aerosol generating device 102 after assembly condition (after getting assembled), in accordance with an embodiment of the present disclosure. [0084] In an embodiment, the proposed aerosol generating device 102 includes the cartridge 104 which comprises the liquid storage tank 104-2, the sleeve 108, the heater assembly 106, the component 106-2, and the interface or horizontal interface or the sealed horizontal interface (110-1). The component 106-2 can be any one or the combination of the heater assembly 106, heater holder 106-3, plastic component that can support the sleeve 108. In an embodiment, the interface comprises the liquid storage tank 104-2, the sleeve 108, and the heater assembly 106. In an embodiment, the horizontal interface 110-1 may include a bottom side or a bottom surface of the liquid storage tank 104-2 of the cartridge 104, the sleeve 108, and a top side or a top surface of the component 106-2. The bottom side or a bottom surface of the liquid storage tank 104-2 can be the first side 202 or the first surface 206 of the liquid storage tank 104-2. In an embodiment, the top side or the top surface of the component 106-2 can be the first side 204 or the second surface 208 of any one or the combination of the heater assembly 106, heater holder 106-3, plastic component that can support the sleeve 108. The proposed structure illustrates the cross section architecture of the leakage-resistant cartridge 104 after getting assembled/after assembly condition, to prevent the leakage of the aerosol generating substrate, which in turn will avoid the leakage of the aerosol generating substrate or the aerosol generating liquid into other parts of the heater assembly 106, and also into the airflow path and the battery side/device side of the aerosol generating device 102 or into any other components within or outside the aerosol generating device 102. The sleeve 108 can be used as sealing in the aerosol generating device 102 to avoid leakage which has got the horizontal interface 110-1 between the first surface 206 or the bottom surface of the liquid storage tank 104-2 and the second surface 208 or the top surface of the component 106-2. The sleeve 108 has a peripheral ridge 110 on top and bottom side to lock its position as the interface (110-1) between the first surface 206 or the bottom surface of the liquid storage tank 104-2 and the second surface 208 or the top surface of the component 106-2. In an embodiment, the second surface 208 or top surface of the component 106-2 can be the top surface of the heater assembly 106 of the aerosol generating device 102.

[0085] In yet another embodiment, the sleeve 108 can be used as sealing in the aerosol generating device 102 to avoid leakage which has got the horizontal interface (110-1) between the reservoir i.e., the liquid storage tank 104-2 of the cartridge 104 and the heater holder 106-3 of heater assembly 106. Further, the sleeve 108 have the peripheral ridge 110 on the top and bottom side to lock its position as the interface (110-1) between the bottom surface of the reservoir i.e., the liquid storage tank 104-2 , and the top surface of the heater holder 106-3 of the heater assembly 106. [0086] In an embodiment, the component 106-2 can be the heater holder 106-3. In an embodiment, the heater holder 106-3 can have a first side which can include a second surface extending along the first side of the heater holder 106-3 and perpendicular to the longitudinal axis 104-4 of the cartridge 104. The sleeve 108 can be positioned between the first surface 206 of the liquid storage tank 104-2 and the second surface of the heater holder 106-3.

[0087] In an embodiment, the peripheral ridge 110 of the sleeve 108 can be of circular, semicircular or arc-shaped, oval and polygonal including hexagonal, octagonal, rectangular, or square, sawtooth or serrated, wavy or undulating, and multi-layered or stepped, without any limitations whatsoever. Further, the sleeve 108 can be made of circular, semi-circular, oval and polygonal including hexagonal, octagonal, rectangular, square or custom shapes, without any limitations, based on the requirement of user. In an embodiment, the shape of the sleeve 108 and the peripheral ridge 110 depend on the shape of the groove on the first side 202 of the liquid storage 104-2 and on the first side 204 of the component 106-2 or on the shape of the cartridge 104 and constructional design of the aerosol generating device 102. The height of each peripheral ridge of the set of peripheral ridges 110 ranges between 0. 1 mm to 3 mm. In an embodiment, the height of the peripheral ridge 110 has a varying range of 0.25±0.05mm (0.2mm to 0.3mm) on each side. In a preferred embodiment, the material used for manufacturing the sleeve 108 is food-grade silicon (or can be of a similar grade) can include, but not limited to, any or a combination of high-temperature food-grade silicone, food and drug administration (FDA) and united states pharmacopeia (USP) class VI certified silicone, and liquid silicone rubber (LSR).

[0088] Further, referring to FIGs.5A and 5B, after assembly condition, the sleeve 108 is forming a sealed horizontal interface 110-1 between the first surface 206 of the liquid storage tank 104-2 and the second surface 208 of the component 106-2 to prevent the leakage of the aerosol generating substrate.

[0089] In an embodiment, the contact surface or meeting surface (also referred as interface or contact point or meeting point) where members of the cartridge, which prevent the leakage of the aerosol generating substrate, meet or interact or contact is horizontal (also referred as horizontal surface or a flat surface) to provide a tight seal to prevent leakage of the aerosol generating substrate, thereby ensuring proper sealing. According to the present invention, the meeting surface where the first surface 206/first side 202 of the liquid storage tank 104-2, the sleeve 108 and the second surface 208 of the component 106-2 meet is horizontal to ensure that sleeve 108 is tightly coupled to prevent leakage of the aerosol generating substrate. [0090] In an embodiment, the sleeve 108 is positioned such that a horizontal contact surface is formed between the first surface 206 of the liquid storage tank 104-2 and the second surface 208 of the component 106-2. In an embodiment, the horizontal contact surface can also be referred as the sealed horizontal interface 110-1.

[0091] Further, referring to FIG. 5B, the sleeve 108 is positioned between the first surface 206 and the second surface 208, and compressive force is applied to the sleeve 108 along the longitudinal axis 104-4 of the cartridge 104 to form the sealed horizontal interface 110-1 to prevent leakage of the aerosol generating substrate.

[0092] In an embodiment, compressive force from the first surface 206 can be a first compressive force and compressive force from the second surface 208 can be a second compressive force. The first compressive force perpendicular to the first surface 206 and the second compressive force perpendicular to the second surface 208 are applied to the sleeve 108.

[0093] In an embodiment, the first compressive force is applied in a direction perpendicular to the sleeve 108 and along the longitudinal axis 104-4 of the cartridge 104. i.e., the first compressive force is applied in the direction towards a top surface or the top side of the sleeve 108. The second compressive is applied in a direction perpendicular to the sleeve 108 and along the longitudinal axis 104-4 of the cartridge 104. i.e., the second compressive force is applied in an opposite direction to the direction of the first compressive force and towards a bottom surface/bottom side of the sleeve 108.

[0094] In an embodiment, the first compressive force and the second compressive are in opposite direction so that the sleeve 108 is compacted or compressed (between the first surface 206 and the second surface 208). In an embodiment, the first compressive force and the second compressive force are applied to the sleeve 108, so that the sleeve 108 is uniformly compressed to form the sealed horizontal interface 110-1 which prevents the leakage of the aerosol generating substrate effectively.

[0095] In an embodiment, the compressive force may be one of pressure or exertion against the sleeve 108 that causes the sleeve 108 to become squeezed or compacted or compressed between the first surface 206 and the second surface 208.

[0096] In an embodiment, there is the first positioning structure on the first side 202 of the liquid storage tank 104-2 and the second positioning structure on the first side 204 of the component 106-2, which can support and ensure effective sealing of the sleeve 108. For example, the groove provided on the first side 202/bottom side of the liquid storage tank 104- 2 and the groove provided on the first side 204/top side of the component 106-2 can support and ensure effective sealing of the sleeve 108. Further, the material of the sleeve 108 also play a role to ensure effective sealing without deformation. The sleeve 108 can be made of food-grade silicone material, including but not limited to high-temperature food-grade silicone, Food and Drug Administration (FDA) and United States Pharmacopeia (USP) class VI certified silicone, and liquid silicone rubber.

FIGs. 6 (A-B) illustrate exemplary representations 600 of a top view and an isometric view, respectively, of the sleeve 108, in accordance with an exemplary embodiment of the present disclosure.

[0097] In an embodiment, FIG. 6A represents the top view of sleeve 108 along with the peripheral ridge 110. FIG. 6B represents the isometric view of the sleeve 108 along with the peripheral ridge 110.

[0098] Referring to FIG. 6A, the sleeve 108 can form the sealed horizontal interface (110-1) to prevent leakage of the aerosol generating substrate. The peripheral ridge 110 can be located along the outer circumference of the sleeve 108, ensuring a secure fit between adjacent components within the aerosol generating device 102. Referring, to FIG. 6A and 6B the shaded region represents the peripheral ridge 110. A central opening of the sleeve 108 allows for passage of airflow or integration with additional structural elements within the aerosol generating device 102.

[0099] Referring to FIG. 6B, a three-dimensional shape of the sleeve 108 for engagement with surrounding components is illustrated. The peripheral ridge 110 extends along the top and bottom surfaces of the sleeve 108, allowing it to be securely positioned between the first surface206 of the liquid storage tank of the cartridge 104 and the second surface 208 of the component 106-2. The peripheral ridge 110 along with the grooves provided at the first side 202 of the liquid storage tank 104-2 and the first side 204 of the component 106-2 functions as a locking feature, preventing displacement of the sleeve 108 during operation and ensuring the sealed horizontal interface (110-1) to restrict unintended leakage of the aerosol-generating substrate.

[0100] The structural integrity of the sleeve 108, as shown in FIG. 6A and FIG. 6B, enhances the sealing capability within the aerosol generating device 102. The sleeve 108 can be fabricated from flexible, heat-resistant materials such as silicone, elastomers, or polymer- based compounds, allows it to accommodate pressure variations while maintaining a secure seal between adjacent components, optimizes uniform sealing engagement, ensuring consistent pressure distribution across the interface (110-1). [0101] Further, the peripheral ridge 110, as shown in FIG. 6A and FIG. 6B, stabilizes the sleeve 108 within the assembly, preventing movement or misalignment that could compromise sealing performance. The shaded region represents the peripheral ridge 110. The structure and dimensions of the peripheral ridge 110 can be optimized based on the structural and functional requirements of the aerosol generating device 102.

[0102] FIG. 7 illustrates an exemplary representation 700 of a cross-section architecture of the sleeve 108, in accordance with an embodiment of the present disclosure.

[0103] Referring to, FIG. 7 represents the cut section of the sleeve 108 and the peripheral ridge 110 (considered semi-circular in shape in the said model). The current design discloses the sleeve 108 placed internally within the cartridge 104 to prevent the leakage of the aerosolgenerating substrate, which will avoid the leakage of the liquid substrate into other parts of the heater assembly 106, and the airflow path and the battery side/device side of the aerosol generating device 102. The sleeve 108 establishes the horizontal interface 110-1 between the first surface 206 of the liquid storage tank 104-2 of the cartridge 104 and the second surface 208 of the component 106-2. The horizontal interface (110-1) contributes to sealing integrity by preventing aerosol generating liquid migration/leakage beyond the designated storage region/the liquid storage tank 104-2. The semi-circular peripheral ridge 110, as illustrated in FIG. 7, is located on both the top side and bottom side of the sleeve 108, enabling it to remain securely locked between the liquid reservoir or the liquid storage tank 104-2 of the cartridge 104 and the top surface/second surface 208 of the component 106-2.

[0104] Further, the sleeve 108 used as sealing in the aerosol generating device 102 to avoid the leakage has horizontal interface (110-1) between the first surface 206 of the liquid storage tank 104-2 or the liquid reservoir and the second surface 208 or the top surface of the component 106-2. The sleeve 108 has a peripheral ridge 110 on top and bottom side to lock its position as the interface (110-1) part between the first surface 206 of the liquid storage tank 104-2the cartridge 104 and the second surface 208 surface of the component 106-2.

[0105] The peripheral ridge 110 serves as a locking mechanism that prevents movement of the sleeve 108 during operation, ensuring that the sealing function remains effective under various usage conditions, including temperature variations and pressure differentials. The semi-circular profile of the peripheral ridge 110 allows for optimized sealing contact while accommodating slight deformations that may arise due to thermal expansion or mechanical stresses.

[0106] Furthermore, the. positioning of the sleeve 108 between the first surface 206 of the liquid storage tank 104-2 and the second surface 208 of the component 106-2 ensures that the aerosol generating liquid substrate remains confined to the designated storage area or the liquid storage tank 104-2, thereby improving reliability of the aerosol generating device 102 and preventing contamination or unintended leakage into other internal components of the aerosol generating device 102.

[0107] In such embodiment, the material used for the sleeve 108 can include flexible and heat-resistant elastomers such as silicone, fluorosilicone, or thermoplastic elastomers (TPE), which provide effective sealing properties while withstanding thermal and mechanical stresses. The semi-circular ridges 110 can be integrated into the sleeve 108 using molding or extrusion processes, ensuring precision fit and long-term durability within the aerosol generating device 102.

[0108] FIGs. 8 (A-B) illustrate exemplary representations 800 of cross-section architecture of the sleeve 108 in a polygonal shape, in accordance with an embodiment of the present disclosure.

[0109] In an embodiment, FIG. 8A represents the top view of the sleeve 108 along with the peripheral ridge 110. FIG. 8B represents the isometric view of the sleeve 108 along with the peripheral ridge 110. Sleeve 108 is represented as a polygonal structure.

[0110] In such embodiment, the sleeve 108 can be depicted as a polygonal structure. The sleeve 108 being positioned horizontally between the first surface 206 of the liquid storage tank 104-2 of the cartridge 104 and the second surface of the component 106-2, forming the horizontal interface 110-1. The polygonal shape of the sleeve 108, as illustrated in FIG. 8A and FIG. 8B, provides structural stability and may contribute to enhancing the sealing effectiveness.

[oni] Further, the peripheral ridge 110, as illustrated in FIG. 8A and FIG. 8B, is formed on both the top side and bottom side of the sleeve 108. This configuration enables the sleeve 108 to be securely locked between the first surface206 or bottom surface of the liquid storage tank 104-2 and the second surface 208 or top surface of the component 106-2. The polygonal structure with peripheral ridges 110 facilitates sealing effect, thereby preventing leakage of the aerosol-generating substrate from the cartridge 104.

[0112] FIG. 9 illustrates an exemplary representation 900 of a cross-section architecture of the sleeve 108 in the polygonal shape, in accordance with an embodiment of the present disclosure.

[0113] Furthermore, FIG. 9 illustrates a detailed sectional representation of the peripheral ridge 110. The sectional view provides a cross-sectional profile, and shows engagement mechanism that contributes to the secure locking of the sleeve 108. The cross-section may indicate a protruding ridge or interlocking design, which assists in maintaining firm and stable connection within the aerosol generating device 102. The peripheral ridges 110 can be formed as continuous ridges, segmented ridges, or interlocking structures, depending on sealing and structural requirements.

[0114] In such embodiment, the material composition of the sleeve 108 can include heat- resistant polymers, elastomeric materials, or composite structures that provide flexibility and durability under operational conditions. The polygonal configuration may be a tight fit while also potentially offering resistance to deformation under heating or pressure variations. The structural arrangement of sleeve 108 and peripheral ridge 110 ensures secure locking, and leakage prevention, which contributes efficiency and performance of the aerosol generating device 102.

[0115] FIG. 10 illustrates an exemplary representation 1000 of a method 1000 of preventing leakage from the cartridge 104, in accordance with an embodiment of the present disclosure.

[0116] Referring to FIG. 10, in another embodiment, the stepwise illustration of a method 1000 of preventing leakage from the cartridge 104 is disclosed. At block 1002, the method 1000 can include the aerosol-generating substrate which can be stored in a liquid storage tank 104-2 of the cartridge 104. The liquid storage tank 104-2 of the cartridge 104 can function as reservoir for retaining the aerosol-generating substrate. The cartridge 104 can be structured to prevent unintentional leakage of the aerosol generating substrate while allowing controlled extraction of the aerosol generating substrate for aerosol generation. The cartridge 104 may include a sealed compartment with an outlet for directing the aerosol generating substrate toward a heating zone.

[0117] At block 1004, the heater assembly 106 of the cartridge 104 is operatively coupled to the liquid storage tank 104-2. The heater 106-1 of the heater assembly 106 can be configured to generate heat through resistive, inductive, or other heating mechanisms. The heater 106-1 can be configured to heat the aerosol-generating substrate. The heater 106-1 can be powered by an external or internal power source, which can include the battery or an external power connection.

[0118] At block 1008, the horizontal interface 110-1 can be formed by the sleeve 108 of the cartridge 104, wherein the sleeve 108 is positioned between the first surface 206 of the liquid storage tank 104-2 of the cartridge 104 and the second surface 208 of the component 106-2. The first side 202 of the liquid storage tank 104-2 can have the first surface 206 and the first side 204 of the component 106-2 can have a second surface 208. Further, the compressive force is applied to the sleeve 108 along the longitudinal axis 104-4 of the cartridge 104. The sleeve 108 can function as a sealing component to prevent the leakage of the aerosolgenerating substrate from the liquid storage tank 104-2 of the cartridge 104. The sleeve 108 can be manufactured from flexible, heat-resistant materials, which may include but not be limited to silicone, elastomers, or polymer-based compounds. The horizontal interface 110-1 created by the sleeve 108 can provide a barrier to minimize unintended fluid migration/leakage between the cartridge 104 and other internal components of the aerosol generating device 102.

[0119] The sleeve 108 can be locked between the first surface 206 of the liquid storage tank of the cartridge 104 and the second surface 208 of the component 106-2 by the set of peripheral ridges 110. The peripheral ridges 110 can be formed on the top side and the bottom side of the sleeve 108 to ensure a secure mechanical engagement. The peripheral ridges 110 can function as locking structures that prevent displacement of the sleeve 108 during operation. The peripheral ridges 110 can further enhance the sealing effectiveness of the horizontal interface 110-1 by providing additional structural support. The set of peripheral ridges 110 can be designed with various cross-sectional profdes, which may include but not be limited to semi-circular, triangular, or rectangular configurations, to optimize sealing performance and mechanical stability.

[0120] In such embodiment, method 1000 can be implemented in the aerosol generating device 102 that incorporates the described structural components to enhance sealing, heating efficiency, and operational reliability. The integration of the sleeve 108 within the cartridge 104 of the aerosol generating device 102 can provide a solution to prevent leakage of the aerosol generating substrate, ensuring consistent aerosol production. The positioning of the sleeve 108 between the liquid storage tank 104-2 of the cartridge 104 and the component 106-2 can facilitate stable sealing. The horizontal interface 110-1 created by the sleeve 108 can serve as a protective barrier, minimizes the risk of fluid escape and enhances the aerosol generating device 102 longevity.

[0121] While the foregoing describes various embodiments of the disclosure, other and further embodiments of the disclosure may be devised without departing from the basic scope thereof. The scope of the invention is determined by the claims that follow. The invention is not limited to the described embodiments, versions, or examples, which are included to enable a person having ordinary skill in the art to make and use the invention when combined with information and knowledge available to the person having ordinary skill in the art. ADVANTAGES OF THE DISCLOSURE

[0122] The proposed disclosure provides an improved aerosol generating device with a leakage-resistant cartridge.

[0123] The proposed disclosure provides an aerosol generating device with a leakage- resistant cartridge, which is lightweight, portable and reliable.

[0124] The proposed disclosure provides an easy technique to assemble a sleeve during an assembly process. The sleeve is used as sealing in the aerosol generating device to avoid the leakage.

[0125] The proposed disclosure provides zero leakage of the aerosol generating substrate, thereby providing enhanced life for the aerosol generating device.

[0126] The proposed disclosure ensures no messy leaks that can occur with traditional cartridges of aerosol generating devices.

[0127] The proposed disclosure reduces the maintenance as the users do not have to deal with cleaning up leaks or worrying about damage to the aerosol generating device, reducing the need for maintenance and increasing the longevity of the aerosol generating device.

[0128] The proposed disclosure ensures that all the aerosol generating substrate in the reservoir or liquid storage tank is consumed at its fullest, thus preventing wastage and thereby being very cost-effective for the user.

Claims

We Claim:

1. An aerosol generating device (102) comprising: a cartridge (104) comprises: a liquid storage tank (104-2) to store an aerosol generating substrate; a heater assembly (106) operatively coupled to the liquid storage tank (104-2) and having a heater (106-1); a component (106-2); and a sleeve (108), wherein the liquid storage tank (104-2) having a first side (202) which defines a first surface (206), wherein the component (106-2) having a first side (204) which defines a second surface (208), and wherein the sleeve (108) is positioned between the first surface (206) and the second surface (208), and compressive force is applied to the sleeve (108) along a longitudinal axis (104-4) of the cartridge (104) thereby forming a sealed horizontal interface (110-1).

2. The aerosol generating device (102) as claimed in claim 1, wherein the component (106-2) is any or a combination of the heater assembly (106), heater holder 106-3, plastic component that supports the sleeve (108).

3. The aerosol generating device (102) as claimed in claim 1, wherein the first side (202) of the liquid storage tank (104-2) is provided with a first positioning structure and the first side (204) of the component (106-2) is provided with a second positioning structure.

4. The aerosol generating device (102) as claimed in claim 1, wherein the first side (202) of the liquid storage tank (104-2) is a bottom side of the liquid storage tank (104-2) and the first side (204) of the component (106-2) is a top side of the component (106- 2).

5. The aerosol generating device (102) as claimed in claim 1, wherein the cartridge (104) defining the longitudinal axis (104-4) extending along a length of the cartridge (104).

6. The aerosol generating device (102) as claimed in claim 1, wherein a set of positioning structures are formed on a top side of the sleeve (108) and a bottom side of the sleeve (108) to lock the sleeve (108) between the first surface (206) of the liquid storage tank (104-2) and the second surface (208) of the component (106-2), and wherein the set of positioning structures are a set of peripheral ridges (110).

7. The aerosol generating device (102) as claimed in claim 1, further comprising a mouthpiece (112) to deliver generated aerosol to a user.

8. The aerosol generating device (102) as claimed in claim 1, wherein the sleeve (108) is made of a food grade silicon material selected from any or a combination of high- temperature food-grade silicone, food and drug administration (FDA) and united states pharmacopeia (USP) class VI certified silicone, and liquid silicone rubber (LSR).

9. The aerosol generating device (102) as claimed in claim 1, wherein the sleeve (108) having a shape selected from any or a combination of circular, semi-circular, oval and polygonal shape including hexagonal, octagonal, rectangular, or square and custom shape.

10. The aerosol generating device (102) as claimed in claim 6, wherein shape of the set of positioning structures (110) are selected from any or a combination of circular, semicircular or arc-shaped, oval and polygonal shape including hexagonal, octagonal, rectangular, square, sawtooth or serrated, wavy or undulating, and multi-layered or stepped.

11. The aerosol generating device (102) as claimed in claim 6, wherein height of each peripheral ridge of the set of peripheral ridges (110) ranges between 0. 1 mm to 3 mm.

12. The aerosol generating device (102) as claimed in claim 1, wherein the aerosol generating device (102) is a rechargeable battery type aerosol generating device.

13. A method (1000) of preventing leakage from a cartridge (104), the method (1000) comprising: storing (1002) an aerosol generating substrate in a liquid storage tank (104-2) of the cartridge (104); operatively coupling (1004) a heater assembly (106) to the liquid storage tank (104-2) of the cartridge (104), wherein the heater assembly (106) having a heater (106-1); supporting (1006), by a component (106-2) of the cartridge (104), a sleeve (108); and forming (1008), by the sleeve (108) of the cartridge (104), a horizontal interface (110-1), wherein the sleeve (108) is positioned between a first surface (206) and a second surface (208) , wherein the first surface (206) is defined by a first side (202) of the liquid storage tank (104-2) and the second surface (208) is defined by a first side (204) of the component (106-2) and compressive force is applied to the sleeve (108) along a longitudinal axis (104-4) of the cartridge (104).