Smoking replacement system

Abstract

A smoking replacement device (201) has a body (209), a heating element extending from the body, and a cap (210) removably connected to the body. The cap is movable along a longitudinal axis of the body between a first position and a second position. The heating element is movable between a first position in which the heating element is hidden in the cap and a second position in which the heating element is at least partially exposed.

Description

[0001] This application is a divisional application of a Chinese patent application with application number 202080034576.3, application date March 13, 2020, and invention title "Smoking Substitute System". Technical Field

[0002] The present invention relates to a smoking substitute system, and in particular but not exclusively to a smoking substitute system including a smoking substitute device and tools for said device. Background Art

[0003] Smoking tobacco is generally considered to expose smokers to potentially harmful substances. It is generally believed that a large number of potentially harmful substances are produced by the heat caused by the burning and / or combustion of tobacco and the components of the burned tobacco in the tobacco smoke itself.

[0004] Traditional combustible smoking articles, such as cigarettes, typically include a cylindrical tobacco rod composed of tobacco strands wrapped by a wrapper, and usually also include a cylindrical filter axially aligned and adjacent to the wrapped tobacco rod. The filter typically includes filter material surrounded by a plug wrap. The wrapped tobacco rod and the filter are connected together by a tipping paper that wraps around the entire length of the filter and an adjacent portion of the wrapped tobacco rod. This type of traditional cigarette is used by lighting the end opposite the filter and burning the tobacco rod. The smoker inhales the mainstream smoke into their mouth by sucking at the mouth end or filter end of the cigarette.

[0005] It is known that the combustion of organic materials such as tobacco produces tar and other potentially harmful by-products. To avoid smoking tobacco, various smoking substitute systems (or "alternative smoking systems") have been proposed.

[0006] Such smoking substitute systems can form part of a nicotine replacement therapy for people who wish to stop smoking and overcome their dependence on nicotine.

[0007] The smoking substitute system includes an electronic system that allows the user to simulate the act of smoking by generating an aerosol (also known as "vapor"), which is sucked into (inhaled) the lungs through the mouth and then exhaled. The inhaled aerosol typically carries nicotine and / or flavorants, with little or no odor and health risks associated with traditional smoking.

[0008] Generally, smoking substitute systems are designed to provide an alternative to the smoking habit while providing the user with an experience and satisfaction similar to that of experiencing traditional smoking and combustible tobacco products. Some smoking substitute systems use smoking substitute articles (also known as "consumables"), which are designed to resemble traditional cigarettes and are in the form of a cylinder with a mouthpiece at one end.

[0009] In the past few years, the popularity and use of smoking alternative systems have grown rapidly. Although initially sold as an aid to help habitual smokers who wish to quit smoking, consumers are increasingly regarding smoking alternative systems as accessories to a desired lifestyle.

[0010] There are many different types of smoking alternative systems, each using a different smoking alternative method.

[0011] One method for a smoking alternative system is the so-called heated tobacco (“HT”) method, in which tobacco (instead of “e-liquid”) is heated or warmed to release vapor. HT is also referred to as “heat-not-burn” (“HNB”). The tobacco can be tobacco leaves or reconstituted tobacco. The vapor can contain nicotine and / or flavorants. In the HT method, the aim is for the tobacco to be heated but not burned, i.e., the tobacco does not undergo combustion.

[0012] A typical HT smoking alternative system can include a device and a consumable. The consumable can include tobacco material. The device and the consumable can be configured to be physically coupled together. For example, the consumable can be inserted into a cavity or a heating chamber so as to establish physical contact with a heating element located in the cavity. In use, heat can be transferred to the tobacco material through the heating element of the device, where an air flow through the tobacco material causes components in the tobacco material to be released as vapor. The vapor can also be formed by a carrier in the tobacco material (which can include, for example, propylene glycol and / or vegetable glycerin) and other volatile compounds released from the tobacco. The released vapor can be entrained in the air flow drawn through the tobacco.

[0013] When the vapor passes from the vaporization location through the consumable (entrained in the air flow) to the outlet of the consumable (e.g., the mouthpiece), the vapor cools and condenses to form an aerosol for the user to inhale. The aerosol will typically contain volatile compounds.

[0014] In an HT smoking alternative system, heating rather than burning the tobacco material is considered to result in a small amount or a smaller amount of the more harmful compounds that are typically produced during smoking. Thus, the HT method can reduce the odors and / or health risks that can be generated by the incineration, combustion, and pyrolytic degradation of tobacco.

[0015] During use, physical contact between the heating element and the tobacco material causes residues to form on the surface of the heating element. Thus, HT devices typically require frequent cleaning with specialized tools to avoid residue buildup on the heater surface. For example, the user may need to use a brush or a disposable solvent swap to clean the heating element. However, currently available HT systems may provide access to the heating element only through an opening towards the end of the chamber. Additionally, the user may need to remove a cap covering the opening to gain access to the heating element prior to cleaning. Such an arrangement may be inconvenient. Thus, some users may clean the heating element only after the device has consumed a given number of consumables, such as 20 consumables, when the accumulated residues become detrimental to the experience, such as when a burnt taste is perceivable.

[0016] There is a need to improve the design of smoking alternative devices, particularly HT smoking alternative devices, to enhance the user experience and improve the functionality of HT smoking alternative devices.

[0017] In view of the above considerations, the present disclosure has been designed. Summary of the Invention

[0018] In the most general case, the present invention relates to a smoking alternative system having a smoking alternative device with a cap movable between two positions to selectively hide or expose a heating element of the smoking alternative device. This can allow the user to physically access and clean the heating element in a more convenient manner and thus facilitate more frequent cleaning routines. The present invention also relates to a tool for removing the cap from the device and thereby preventing inadvertent removal of the cap. The tool may also include a cleaning device to allow the user to clean the heating element after the cap has been removed by the tool.

[0019] According to a first aspect of the present invention, there is provided a smoking alternative device having a body, a heating element extending from the body, and a cap removably attached to the body. The cap is movable along the longitudinal axis of the body between a first position and a second position. In the first position, the heating element is hidden within the cap, and in the second position, the heating element is at least partially exposed.

[0020] For example, in the first position, the cap may cover a window or an opening at the sidewall of the body, the window or opening extending into a transverse chamber that houses the heating element, thereby hiding the heating element. In the second position, the cap moves or slides to a position where it no longer covers the opening, such that the heating element can be at least partially exposed through the opening. More specifically, the opening may be positioned adjacent to the exposed portion of the heating element, so that it can provide a physical access to the exposed portion of the heating element.

[0021] By providing a device including a cap movable between two positions, the heating element can be cleaned in a more convenient manner. For example, when the cap is moved to the second position, the heating element can be exposed from the side of the device through a window or an opening, such that the heating element can be visually inspected or cleaned through the opening. Advantageously, the user can thus perform a short cleaning at the heating element without the need for a dedicated cleaning tool. For example, the user can simply blow through the opening or physically shake, tilt, and / or tap the device to remove loose debris formed on the heating element. The user can also use a tool (such as a brush) to physically clean the exposed portion of the heating element (such as the base of the heating element). Additionally, a smoking substitute as disclosed herein can extend the usability of the device before a deep cleaning or other similar maintenance is required.

[0022] Optional features will now be described. These can be applied individually or in any combination with any aspect.

[0023] Optionally, the cap can be held on the body in the second position by a retaining mechanism. Optionally, the retaining mechanism can be any suitable retaining mechanism, such as an interference fit or a latching mechanism. Advantageously, the retaining mechanism can allow the cap to be positioned and held in the second position during visual inspection and / or cleaning, and after the cap reaches the second position, the retaining mechanism can prevent the cap from further moving along the longitudinal axis, thereby preventing the cap from being inadvertently removed from the body.

[0024] Optionally, the retaining mechanism includes at least one flexible locking arm extending from the body and a locking protrusion provided on the at least one locking arm. The locking protrusion can be configured to engage with a slot defined in the cap to hold the cap on the body. Optionally, the locking protrusion can be held in the slot when the cap moves between the first position and the second position. Advantageously, when the cap moves from the first position to the second position, the locking protrusion can slide along the slot, thereby preventing relative rotation between the cap and the body.

[0025] Optionally, the body defines a transverse cavity passing through the first sidewall of the body to form an opening, and the opening can be juxtaposed with the base of the heating element to at least partially expose the base of the heating element when the cap is in the second position. For example, the opening at the sidewall of the body leads to the transverse cavity. The transverse cavity can be laterally juxtaposed with the base of the heating element, or in other words, the transverse cavity can open in a direction orthogonal to the longitudinal axis of the body.

[0026] Optionally, the transverse cavity can extend from the first sidewall of the body to the second sidewall opposite the first sidewall. In other words, the transverse cavity can be a through-hole extending through the first sidewall and the second sidewall of the body. Advantageously, this can allow loose debris to effectively discharge from the opening or the through-hole.

[0027] Optionally, the locking projection is configured to prevent the cap from separating from the device by abutting against the end of the slot when the cap has moved to the second position, thereby preventing further movement of the cap. In other words, when the cap is in the second position, the locking projection can prevent the movement of the cap by abutting against the outer peripheral surface of the cap that defines the slot, thereby preventing separation of the cap.

[0028] Optionally, the cap may define a cavity for receiving at least a portion of the aerosol - forming article. Optionally, the slot may be connected to or open into the cavity.

[0029] In a second aspect according to the present invention, a tool for separating a cap from a body of a smoking - alternative device is disclosed. The tool can be used to separate the cap from the device or to remove the cap from the device for deep cleaning of the heating element. The tool has an unlocking device at one end and a cleaning device at the other end. The tool can provide compact and easy maintenance of the smoking - alternative device of the present disclosure's smoking - alternative system.

[0030] The tool may have at least one unlocking arm and an unlocking projection provided on the unlocking arm. The unlocking projection may be configured to displace a corresponding locking projection provided on a locking arm extending from the body of the device, so as to disengage the locking projection from the slot in the cap. Advantageously, the tool prevents unintentional removal of the cap from the body of the device.

[0031] Optionally, the tool further includes a cleaning device for cleaning the heating element. Advantageously, the cleaning device conveniently allows the user to physically clean the heating element after removing the cap by the tool, thereby allowing for better cleaning of the heating element, such as "deep cleaning" the heating element. Optionally, the cleaning device includes at least one cleaning bristle. Advantageously, in use, the bristles can scrape on the surface of the heating element, thereby cleaning the heating element in a more effective manner.

[0032] Optionally, the tool further includes a central rod, the at least one unlocking arm extends in a first direction along the longitudinal axis of the central rod, and the cleaning device extends in a second direction opposite to the first direction.

[0033] Optionally, the tool includes a collar surrounding the central rod, the neutral rod having an unlocking arm extending in the first direction, the collar being movable between an insertion position and an unlocking position, wherein in the insertion position, at least one unlocking arm is allowed to bend, and in the unlocking position, the central rod prevents the unlocking arm from bending. The collar may include an annular collar. The collar may be positioned concentrically with the central rod.

[0034] Optionally, the tool further includes a first cover configured to cover at least one unlocking arm and a second cover configured to cover the cleaning device.

[0035] Optionally, the tool has an outer profile similar to the outer profile of the aerosol - forming article for the smoking - alternative system.

[0036] The device may include an elongate body. The ends of the elongate body may be configured to engage with an aerosol-forming article. For example, the body may be configured to engage with a heated tobacco (HT) consumable (or heat-not-burn (HNB) consumable). The terms "heated tobacco" and "heat-not-burn" may be used interchangeably herein to describe a type of consumable that is heated rather than burned (or interchangeably to describe a device for use with such a consumable). The device may include a cavity configured to receive at least a portion of the consumable (i.e., for engaging with the consumable). The aerosol-forming article may be of a type that includes an aerosol precursor (e.g., carried by an aerosol-forming substrate).

[0037] The body may define a transverse cavity extending perpendicular to the longitudinal axis of the body. The transverse cavity may extend laterally and may be located on the body such that at least the base of the heating element is juxtaposed with the transverse cavity.

[0038] In addition, at least one locking arm may extend from the body. The locking arm may lock or hold the cap to the body. The locking arm may be provided with a locking protrusion at the distal end. The locking protrusion may extend transversely to the longitudinal axis of the body. The locking arm may be positioned such that when the cap is mounted on the body, the locking arm may engage the cap to hold the cap on the body.

[0039] The cap may be provided with a slot extending along the longitudinal axis of the body (when the cap is held on the body), and the locking protrusion may be configured to engage the slot. The slot may be elongate such that the cap may be moved or slid relative to the body along the longitudinal axis of the body. The locking protrusion may have an abutment surface to engage the outer peripheral surface of the cap defining the slot, thereby holding or locking the cap to the body.

[0040] The cap may be movable between a first position and a second position. When the cap is in the first position, the cap may hide the heating element. When the cap is in the second position, the heating element may be at least partially exposed, e.g., through a window or opening in the sidewall of the body. When the heating element is partially exposed, the heating element may be visually inspected to determine if the heating element needs to be cleaned. If needed, when the cap is in the second position, the heating element may be at least partially cleaned by blowing air through the opening or simply shaking, tilting, and / or gently tapping the device to remove and dislodge loose debris.

[0041] The smoking alternative system of the present disclosure may further include a tool for separating the cap from the body. The tool may be configured to displace the locking arm to enable separation of the cap from the body. The tool may include at least one unlocking arm. The unlocking arm may be adapted to engage the locking arm to displace the locking arm for separating the cap from the body. Each unlocking arm may be provided with an unlocking protrusion. The unlocking protrusion may extend in a direction perpendicular to the longitudinal axis of the unlocking arm. The unlocking protrusion may be adapted to engage the locking protrusion to displace the locking protrusion for disengaging the cap from the body.

[0042] The tool may further include a central rod. The collar may be positioned concentrically with the central rod. The collar may be movably disposed on the rod such that the collar moves along the longitudinal axis of the central rod relative to the central rod. The unlocking arm may extend from the collar along the longitudinal axis of the central rod. The collar may move on the central rod between an inserted position and an unlocked position. In the inserted position, the central rod may be held away from the unlocking projection, and the unlocking arm may be bent radially inwardly relative to the longitudinal axis of the central rod. In the unlocked position, the central rod may move adjacent to the unlocking projection to prevent the unlocking arm from bending in a direction radially inward relative to the longitudinal axis of the central rod. The collar may be biased to move towards the inserted position using any suitable means (such as a helical spring).

[0043] The tool may be configured for insertion into a cavity. The unlocking projection may be configured such that when the unlocking arm is inserted into the cavity, the unlocking arm displaces a locking arm to disengage the locking arm. The unlocking projection may have a size that interferes with the width of the cavity. To allow the unlocking arm to be inserted into the cavity, in the inserted position, the central rod may be spaced apart from the distal end of the unlocking arm to allow the distal end of the unlocking arm to bend radially inwardly, enabling the unlocking arm having the unlocking projection to be inserted into the cavity. The bending may be achieved when the unlocking projection abuts and slides against the inner surface of a cap defining the inner cavity. As shown in the illustrated embodiment, the unlocking projection may be provided with a tapered surface to guide the bending movement of the unlocking arm in and out of the cavity and the slot.

[0044] The tool may further include a cleaning device for cleaning the heating element. The cleaning device may be in the form of cleaning bristles. The cleaning bristles may rub on the outer surface of the heating element to clean or remove any debris or residue from the heating element.

[0045] The tool may include a first cover to cover the unlocking arm when not in use. Additionally, a second cover may be provided to cover the cleaning bristles when not in use.

[0046] The device may include a heater for heating an aerosol-forming article. The heater may include a heating element, which may be in the form of a rod extending from the body of the device. The heating element may extend from an end of the body configured to engage with the aerosol-forming article.

[0047] The heater (and thus the heating element) can be firmly mounted to the body. The heating element can be elongate so as to define a longitudinal axis and can, for example, have a substantially circular cross-sectional profile (i.e., perpendicular to the longitudinal axis of the heating element) (i.e., the heating element can be generally cylindrical). Alternatively, the heating element can have a rectangular cross-sectional profile (i.e., the heater can be a “blade heater”). Alternatively, the heating element can be in the shape of a tube (i.e., the heater can be a “tubular heater”). The heating element can take other forms (e.g., the heating element can have an oval cross-sectional profile). The shape and / or dimensions (e.g., diameter) of the cross-sectional profile of the heating element can be substantially uniform along the entire length (or substantially the entire length) of the heating element.

[0048] The heating element can be 15 mm to 25 mm in length, such as 18 mm to 20 mm in length, such as, about 19 mm in length. The heating element can have a diameter of 1.5 mm to 2.5 mm, such as 2 mm to 2.3 mm in diameter, such as, about 2.15 mm in diameter.

[0049] The heating element can be formed from ceramic. The heating element can include a core (e.g., a ceramic core) containing Al2O3. The diameter of the core of the heating element can be 1.8 mm to 2.1 mm, such as 1.9 mm to 2 mm. The heating element can include an outer layer (e.g., an outer ceramic layer) containing Al2O3. The thickness of the outer layer can be 160 μm to 220 μm, such as 170 μm to 190 μm, such as about 180 μm. The heating element can include a heating track, which can extend longitudinally along the heating element. The heating track can be sandwiched between the outer layer and the core of the heating element. The heating track can contain tungsten and / or rhenium. The heating track can have a thickness of about 20 μm.

[0050] The heating element can be located in a cavity (of the device) and can extend (e.g., along the longitudinal axis) from the inner base of the cavity towards the opening of the cavity. The length of the heating element (i.e., along the longitudinal axis of the heater) can be less than the depth of the cavity. Thus, the heating element can extend within only a portion of the length of the cavity. In other words, the heating element can not extend through (or beyond) the opening of the cavity.

[0051] The heating element can be configured to be inserted into an aerosol-forming article (e.g., an HT consumable) when the aerosol-forming article is accommodated in the cavity. In this regard, the distal end of the heating element (i.e., away from the base of the heating element mounted to the device) can include a tapered portion, which can facilitate the insertion of the heating element into the aerosol-forming article. When the aerosol-forming article is accommodated in the cavity, the heating element can completely penetrate the aerosol-forming article. In other words, the entire length or substantially the entire length of the heating element can be accommodated within the aerosol-forming article.

[0052] The length of the heating element can be less than or substantially equal to the axial length of the aerosol - forming substrate that forms part of an aerosol - forming article (e.g., an HT consumable). Thus, when such an aerosol - forming article is engaged with a device, the heating element can penetrate only the aerosol - forming substrate and not other components of the aerosol - forming article. The heating element can penetrate the aerosol - forming substrate over substantially the entire axial length of the aerosol - forming substrate of the aerosol - forming article. Thus, when penetrated by the heating element, heat can be transferred (e.g., from the outer peripheral surface of the heating element) to the surrounding aerosol - forming substrate. In other words, heat can be transferred radially outwards (in the case of a cylindrical heating element) or, for example, radially inwards (in the case of a tubular heater).

[0053] In the case where the heater is a tubular heater, the heating element of the tubular heater can surround at least a portion of the cavity. When a portion of the aerosol - forming article is received in the cavity, the heating element can surround that portion of the aerosol - forming article (i.e., in order to heat that portion of the aerosol - forming article). In particular, the heating element can surround the aerosol - forming substrate of the aerosol - forming article. In other words, when the aerosol - forming article is engaged with the device, the aerosol - forming substrate of the aerosol - forming article can be positioned adjacent to the inner surface of the (tubular) heating element. When the heating element is activated, heat can be transferred radially inwards from the inner surface of the heating element to heat the aerosol - forming substrate.

[0054] The cavity can include (e.g., circumferential) wall(s), and the (tubular) heating element can extend around at least a portion of the wall. In this way, the wall can be located between the inner surface of the heating element and the outer surface of the aerosol - forming article. The wall(s) of the cavity can be formed of a thermally conductive material (e.g., metal) to allow heat conduction from the heating element to the aerosol - forming article. Thus, heat can be conducted from the heating element through the cavity wall(s) to the aerosol - forming substrate of the aerosol - forming article received in the cavity.

[0055] In some embodiments, the device can include a cap provided at an end of the body, the cap being configured to engage with the aerosol - forming article. In the case where the device includes a heater having a heating element, the cap can at least partially enclose the heating element. The cap can move between an open position or second position in which there is a passage to the heating element and a closed position in which the cap at least partially encloses the heating element. The cap can be slidably engaged with the body of the device and can slide between the open position and the closed position.

[0056] The cap may define at least a portion of the chamber of the device. In other words, the chamber may be entirely defined by the cap, or each of the cap and the body may define a portion of the chamber. In the case where the cap entirely defines the chamber, the cap may include a hole for receiving a heating element in the chamber (when the cap is in the closed position). The cap may include an opening leading to the chamber. The opening may be configured to receive at least a portion of an aerosol-forming article. In other words, the aerosol-forming article may be inserted through the opening and into the chamber (to engage with the device).

[0057] The cap may be configured such that when the aerosol-forming article engages with the device (e.g., is received in the chamber), only a portion of the aerosol-forming article is received in the chamber. In other words, a portion of the aerosol-forming article (not received in the chamber) may protrude from the opening (i.e., extend beyond the opening). This (protruding) portion of the aerosol-forming article may be the terminal (e.g., mouthpiece) end of the aerosol-forming article, which may be received in the user's mouth for the purpose of inhaling the aerosol formed by the device.

[0058] The device may include a power source or may be connected to a power source (e.g., a power source separate from the device). The power source may be electrically connected to the heater. In this regard, changing (e.g., switching) the electrical connection between the power source and the heater may affect the state of the heater. For example, switching the electrical connection between the power source and the heater may switch the heater between an on state and an off state. The power source may be a power storage device. For example, the power source may be a battery or a rechargeable battery (e.g., a lithium-ion battery).

[0059] The device may include an input connection (e.g., a USB port, a micro USB port, a USB-C port, etc.). The input connection may be configured for connection to an external power source, such as a power socket. In some cases, the input connection may be used as an alternative to an internal power source (e.g., a battery or a rechargeable battery). In other words, the input connection may be electrically connected to the heater (to supply power to the heater). Thus, in some forms, the input connection may form at least a portion of the power source of the device.

[0060] In the case where the power source includes a rechargeable power source (e.g., a rechargeable battery), the input connection may be used to charge and recharge the power source.

[0061] The device may include a user interface (UI). In some embodiments, the UI may include an input mechanism for receiving operation commands from the user. The input mechanism of the UI may allow the user to control at least one aspect of the operation of the device. In some embodiments, the input mechanism may include a power button to switch the device between an on state and an off state.

[0062] In some embodiments, the UI may additionally or alternatively include an output mechanism to convey information to the user. In some embodiments, the output mechanism may include a light to indicate the status of the device (and / or the aerosol-forming article) to the user. The status of the device (and / or the aerosol-forming article) indicated to the user may include indicating the operating status of the heater. For example, the status may include whether the heater is in an off state or an on state. In some embodiments, the UI unit may include at least one of a button, a display, a touch screen, a switch, a light, etc. For example, the output mechanism may include one or more (such as two, three, four, etc.) light-emitting diodes (“LEDs”) that may be located on the body of the device.

[0063] The device may also include a puff sensor (such as an air flow sensor), which forms part of the input mechanism of the UI. The puff sensor may be configured to detect the end (i.e., the terminal (mouth) end) of the user puffing on the aerosol-forming article. The puff sensor may be, for example, a pressure sensor or a microphone. The puff sensor may be configured to generate a signal indicative of the puff status. The signal may indicate that the user is puffing (the aerosol from the aerosol-forming article), such that it is in the form of a binary signal, for example. Alternatively or additionally, the signal may indicate the characteristics of the puff (such as the puff flow rate, the puff duration, etc.).

[0064] The device may include a controller, or may be connected to a controller, which may be configured to control at least one function of the device. The controller may include, for example, a microcontroller that may be mounted on a printed circuit board (PCB). The controller may also include a memory, such as a non-volatile memory. The memory may include instructions that, when implemented, may cause the controller to perform certain tasks or steps of a method. In the case where the device includes an input connection, the controller may be connected to the input connection.

[0065] The controller may be configured to control the operation of the heater (and, for example, the heating element). Thus, the controller may be configured to control the vaporization of the aerosol-forming portion of the aerosol-forming article engaged with the device. The controller may be configured to control the voltage applied to the heater by the power supply. For example, the controller may be configured to switch between applying the full output voltage (from the power supply) to the heater and not applying voltage to the heater. Alternatively or additionally, the control unit may implement a more complex heater control protocol.

[0066] The device may also include a voltage regulator to regulate the output voltage supplied by the power supply to form a regulated voltage. The regulated voltage may then be applied to the heater.

[0067] In some embodiments where the device includes a UI, the controller can be operably connected to one or more components of the UI. The controller can be configured to receive command signals from an input mechanism of the UI. The controller can be configured to control the heater in response to the command signals. For example, the controller can be configured to receive "on" and "off" command signals from the UI and, in response, control the heater to be in the corresponding on or off state.

[0068] The controller can be configured to send output signals to components of the UI. The UI can be configured to communicate information to a user via an output mechanism in response to such output signals (received from the controller). For example, in cases where the device includes one or more LEDs, the LEDs can be operably connected to the controller. Thus, the controller can be configured to control the illumination of the LEDs (e.g., in response to an output signal). For example, the controller can be configured to control the illumination of the LEDs based on the (e.g., on or off) state of the heater.

[0069] In cases where the device includes a sensor (e.g., a draw / airflow sensor), the controller can be operably connected to the sensor. The controller can be configured to receive signals from the sensor (e.g., indicating the state of the device and / or the engaged aerosol-forming article). The controller can be configured to control an aspect of the heater or the output mechanism based on the signals from the sensor.

[0070] The device can include a wireless interface configured to communicate wirelessly with an external device (e.g., via Bluetooth (e.g., Bluetooth Low Energy connection) or Wi-Fi). Similarly, an input connection can be configured as a wired connection to an external device to provide communication between the device and the external device.

[0071] The external device can be a mobile device. For example, the external device can be a smart phone, a tablet, a smart watch, or a smart car. An application (e.g., an app) can be installed on the external device (e.g., the mobile device). The application can facilitate communication between the device and the external device via a wired connection or a wireless connection.

[0072] The wireless interface or the wired interface can be configured to transfer signals between the external device and the controller of the device. In this regard, the controller can control an aspect of the device in response to signals received from the external device. Alternatively or additionally, the external device can respond to signals received from the device (e.g., from the controller of the device).

[0073] In a third aspect, there is provided a system (e.g., a smoking alternative system) that includes the device according to the first aspect and an aerosol-forming article. The aerosol-forming article may include an aerosol-forming substrate at an upstream end of the aerosol-forming article. The article may be in the form of a smoking alternative article, such as a heated tobacco (HT) consumable (also referred to as a heat-not-burn (HNB) consumable).

[0074] As used herein, the terms "upstream" and "downstream" are intended to refer to the direction of vapor / aerosol flow, i.e., the downstream end of the article / consumable is the mouth end or outlet where the aerosol exits the consumable for inhalation by the user. The upstream end of the article / consumable is the end opposite the downstream end.

[0075] The aerosol-forming substrate is capable of being heated to release at least one volatile compound that can form an aerosol. The aerosol-forming substrate may be located at the upstream end of the article / consumable.

[0076] To produce an aerosol, the aerosol-forming substrate contains at least one volatile compound that is intended to be vaporized / atomized and that can provide a recreational and / or therapeutic effect to the user when inhaled. Suitable chemical and / or physiologically active volatile compounds for providing a recreational effect to the user include: nicotine, caffeine, kavain, mysticin, β-carboline alkaloids, salvinorin A, and any combination, functional equivalent, and / or synthetic substitute of the foregoing. Suitable chemical and / or physiologically active volatile compounds for providing a therapeutic effect to the user include: opioids and opiates, theophylline, and cathinone, and any combination, functional equivalent, and / or synthetic substitute of the foregoing.

[0077] The aerosol-forming substrate may include plant material. The plant material may include at least one plant material selected from the following list: Amaranthus spinosus Amaranthus dubius ), Arctostaphylos uva-ursi Arctostaphylos uva-ursi,Bearberry ), Argemone mexicana Argemone mexicana ), Arnica montana Amica ), Artemisia argyi Artemisia vulgaris ), Camellia sinensis Yellow Tees ), Zantedeschia aethiopica Galea zacatechichi ), Canavalia maritima Canavalia maritima,Baybean ), Schefflera digitata Cecropia mexicana,Guamura ), Telosma cordata Cestrum noctumum ), Virginia bluebell Cynoglossum virginianum,wild comfrey ), Genista tinctoria Cytisus scoparius ), Turnera diffusa Damiana ), Entada phaseoloides Entada rheedii ), Eschscholzia californica Eschscholzia californica, California Poppy ), Fittonia albivenis Fittonia albivenis)、Locoweed Hippobroma longiflora )、Japanese Hop Humulus japonica,Japanese Hops )、Hops Humulus lupulus,Hops )、Prickly Lettuce Lactuca virosa,Lettuce Opium )、Six-angled Aster Laggera alata )、Lion's Ear Leonotis leonurus )、European Motherwort Leonurus cardiaca,Motherwort )、Sibirian Motherwort Leonurus sibiricus, Honeyweed )、Redflower Lobelia Lobelia cardinalis )、Great Blue Lobelia Lobelia inflata,Indian- tobacco )、Great Blue Lobelia Lobelia siphilitica )、Schizonepeta Nepeta cataria,Catnip )、Nicotiana Nicotiana species,Tobacco )、White Water Lily Nymphaea alba,White Lily )、Blue Water Lily Nymphaea caerulea,Blue Lily )、Denseflower Pedicularis Pedicularis densiflora,Indian Warrior )、Grant's Pedicularis Pedicularis groenlandica,Elephant's Head )、Mexican Sage Salvia divinorum )、Dory Sage Salvia dorrii,Tobacco Sage )、Salvia Salvia species,Sage )、Helmet Skullcap Scutellaria galericulata )、Lateral Flower Skullcap Scutellaria lateriflora )、Small Skullcap Scutellaria nana )、Skullcap Scutellaria species,Skullcap )、Sida acuta Burm. f. Sida acuta,Wireweed )、Sida acuta Burm. f. var. rhombifolia Sida rhombifolia )、African Dream Root Silene capensis )、Syzygium aromaticum Syzygium aromaticum, Clove )、Curry Plant Tagetes lucida,Mexican Tarragon )、Cotton Fruit Daisy Tarchonanthus camphoratus )、Damiana Turnera diffusa, Damiana )、Verbascum Verbascum, Mullein )、Broad-leaved Cycad Zamia latifolia, Maconha Brava ) and any combination, functional equivalents, and / or synthetic substitutes of the foregoing. The aerosol-forming substrate may include at least one plant material selected from the following for medical effects: Purple Granadilla Passiflora incarnata , Passionflower) and any combination, functional equivalents, and / or synthetic substitutes of the foregoing.

[0078] The plant material may be tobacco. Any type of tobacco may be used. This includes, but is not limited to, flue-cured tobacco, burley tobacco, Maryland tobacco, dark air-cured tobacco, oriental tobacco, dark fire-cured tobacco, perique tobacco, and rustica tobacco. This also includes mixtures of the above tobaccos.

[0079] The tobacco can include one or more of tobacco leaves, tobacco stems, tobacco powder, tobacco dust, tobacco derivatives, expanded tobacco, homogenized tobacco, cut tobacco, extruded tobacco, shredded tobacco, and / or reconstituted tobacco (such as reconstituted by the slurry method or the paper method).

[0080] The aerosol - forming substrate can include collected homogenized (such as paper - method / slurry - method reconstituted) tobacco sheets or collected fragments / strips formed from such sheets.

[0081] The aerosol - forming substrate can contain one or more additives selected from humectants, flavorants, fillers, aqueous / non - aqueous solvents, and binders.

[0082] The flavorant can be provided in solid or liquid form. It can include menthol, licorice, chocolate, fruit flavors (including for example citrus, cherry, etc.), vanilla, spices (such as ginger, cinnamon), and tobacco flavors. The flavorant can be uniformly dispersed throughout the aerosol - forming substrate or can be provided at separate locations and / or varying concentrations throughout the aerosol - forming substrate.

[0083] The aerosol - forming substrate can be formed to be substantially cylindrical such that the article / consumable resembles a traditional cigarette. Its diameter can be from 5 mm to 10 mm, such as from 6 mm to 9 mm or from 6 mm to 8 mm, for example about 7 mm. Its axial length can be from 10 mm to 15 mm, such as from 11 mm to 14 mm, for example about 12 mm or 13 mm.

[0084] The article / consumable can include at least one filter element. There can be a terminal filter element at the downstream / mouth end of the article / consumable.

[0085] The filter element or at least one filter element (such as the terminal filter element) can be composed of cellulose acetate or polypropylene tow. The at least one filter element (such as the terminal filter element) can be composed of activated carbon. The at least one filter element (such as the terminal element) can be composed of paper. The filter element or each filter element can be at least partially (such as completely) surrounded by a filter rod wrapper (such as a paper - type filter rod wrapper).

[0086] The terminal filter element (at the downstream end of the article / consumable) can be connected to the upstream element forming the article / consumable by wrapping around an assembly layer (such as an assembly paper layer). The axial length of the assembly paper can be longer than the axial length of the terminal filter element such that the assembly paper completely surrounds the terminal filter element and the wrapper layer of any adjacent upstream element.

[0087] In some embodiments, the article / consumable may include an aerosol cooling element adapted to cool (by heat exchange) an aerosol generated from an aerosol-forming substrate prior to inhalation by a user.

[0088] The article / consumable may include a spacer element defining a space or cavity between the aerosol-forming substrate and the downstream end of the consumable. The spacer element may include a cardboard tube. The spacer element may be surrounded by a (paper) wrapper layer.

[0089] In a fourth aspect, there is provided a kit including the device according to the first aspect and the tool according to the second aspect.

[0090] The present invention includes combinations of the described aspects and preferred features, unless such combinations are clearly impossible or expressly avoided.

[0091] Those skilled in the art will understand that, unless mutually exclusive, the features or parameters described with respect to any one of the above aspects may be applicable to any other aspect. Additionally, unless mutually exclusive, any feature or parameter described herein may be applicable to any aspect and / or combined with any other feature or parameter described herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0092] For a better understanding of the present invention and for understanding other aspects and features thereof, embodiments illustrating the principles of the present invention will now be discussed in more detail with reference to the accompanying drawings, in which: Figure 1 is a schematic view of a smoking replacement system; Figure 2A is a front view of a first embodiment of a smoking replacement system in which the consumable is engaged with the device; Figure 2B is a front view of a first embodiment of a smoking replacement system in which the consumable is disengaged from the device; Figure 2C is a cross-sectional view of the consumable of a first embodiment of a smoking replacement system; Figure 2D is a detail view of an end of the device of a first embodiment of a smoking replacement system; Figure 2E is a cross-sectional view of a first embodiment of a smoking replacement system; and Figure 3 is a perspective view of a first embodiment of an alternative smoking system in which the cap is in a second position.

[0093] Figure 4A is a cross-sectional view of a first embodiment of a smoking replacement system in which the cap is in a first position.

[0094] Figure 4BA cross-sectional view of a first embodiment of a smoking alternative system in which the cap is in a second position.

[0095] Figure 5A A perspective view of a tool according to an embodiment.

[0096] Figure 5B Is one in which the first lid is removed Figure 5A Perspective view of the tool.

[0097] Figure 5C Is one in which the second lid is removed Figure 5A Perspective view of the tool.

[0098] Figure 6A A cross-sectional view of a first embodiment in which the tool is inserted into the cavity in the insertion position.

[0099] Figure 6B A cross-sectional view of a first embodiment in which the tool is inserted into the cavity in the unlocked position.

[0100] Figure 7 (a) to Figure 7 (e) illustrate the stages of separating the cap from the body of the smoking alternative device of the first embodiment using the tool. Detailed Description

[0101] Aspects and embodiments of the present invention will now be discussed with reference to the accompanying drawings. Other aspects and embodiments will be apparent to those skilled in the art. All documents mentioned herein are incorporated herein by reference.

[0102] Figure 1 A schematic diagram providing an overall overview of the smoking alternative system 100. The system 100 includes a smoking alternative device 101 and an aerosol-forming article in the form of a consumable 102, the consumable 102 containing an aerosol precursor 103. The system is configured to vaporize the aerosol precursor by heating the aerosol precursor 103 (in order to form a vapor / aerosol for the user to inhale).

[0103] In the illustrated system, the heater 104 forms part of the device 101 and is configured to heat the aerosol precursor 103. Heat from the heater 104 vaporizes the aerosol precursor 103 to produce a vapor. The vapor then condenses to form an aerosol, which is ultimately inhaled by the user.

[0104] System 100 also includes a power source 105 that forms part of the device 101. In other embodiments, the power source 105 may be external to the device 101 (but connectable to the device 101). The power source 105 may be electrically connected to the heater 104 such that it can supply power to the heater 104 (i.e., for the purpose of heating the aerosol precursor 103). Thus, control of the electrical connection between the power source 105 and the heater 104 provides control over the state of the heater 104. The power source 105 may be an electrical energy storage device, such as a battery or rechargeable battery (e.g., a lithium-ion battery).

[0105] System 100 further includes an I / O module that includes a connector 106 (e.g., in the form of a USB port, micro-USB port, USB-C port, etc.). The connector 106 is configured to connect to an external power source, such as a power outlet. The connector 106 can be used in place of the power source 105. In other words, the connector 106 can be electrically connected to the heater 104 to supply power to the heater 104. In such embodiments, the device may not include a power source, and the power source of the system may alternatively include the connector 106 and an external power source (the connector 106 provides the electrical connection to the external power source).

[0106] In some embodiments, where the power source 104 includes a rechargeable battery, the connector 106 can be used to charge and recharge the power source 105.

[0107] System 100 also includes a user interface (UI) 107. Although not shown, the UI 107 may include an input mechanism for receiving commands from the user. The input mechanism of the UI 107 allows the user to control at least one aspect of the operation of the system 100. The input mechanism can, for example, be in the form of a button, touch screen, switch, microphone, etc.

[0108] The UI 107 also includes an output mechanism for communicating information to the user. The output mechanism can, for example, include a light (e.g., an LED), a display screen, a speaker, a vibration generator, etc.

[0109] System 100 also includes a controller 108 that is configured to control at least one function of the device 101. In the illustrated embodiment, the controller 108 is a component of the device 101, but in other embodiments, the controller 108 may be separate from the device 101 (but connectable to the device 101). The controller 108 is configured to control the operation of the heater 104 and, for example, may be configured to control the voltage applied to the heater 104 from the power source 105. The controller 108 may be configured to switch the power supply to the heater 105 between an on state (where the full output voltage of the power source 105 is applied to the heater 104) and an off state (where no voltage is applied to the heater 104).

[0110] Although not shown, system 100 further includes a voltage regulator that regulates the output voltage from power supply 105 to form a regulated voltage. The regulated voltage can then be applied to heater 104.

[0111] In addition to being connected to heater 104, controller 108 is operably connected to UI 107. Thus, controller 108 can receive input signals from the input mechanism of UI 107. Similarly, controller 108 can transmit output signals to UI 107. In response, the output mechanism of UI 107 can convey information to the user based on the output signals.

[0112] Figure 2A and Figure 2B A heated tobacco (HT) smoking alternative system 200 is shown. System 200 is an example of the Figure 1 system 100 described above. System 200 includes an HT device 201 and an HT consumable 202. The above Figure 1 description applies to Figure 2A and Figure 2B system 200 and will not be repeated here.

[0113] Device 201 and consumable 202 are configured such that consumable 202 can be engaged with device 201. Figure 2A Device 201 and consumable 202 are shown in an engaged state, while Figure 2B device 201 and consumable 202 are shown in a disengaged state.

[0114] Device 201 includes a body 209 and a cap 210. In use, cap 209 is engaged at the end of body 209. Although not apparent in the drawings, cap 210 is movable relative to body 209. In particular, cap 210 is slidable and can slide along the longitudinal axis of body 209.

[0115] As Figure 7 shown in (e), body 209 defines a transverse cavity 227 that extends perpendicular to the longitudinal axis of body 209. Transverse cavity 227 forms an opening through the first sidewall of body 209 and extends from the first sidewall of body 209 toward and around at least a portion of the heating element. Transverse cavity 227 is located on body 209 such that at least the base 228 of the heating element is juxtaposed with transverse cavity 227. Transverse cavity 227 extends from the first sidewall of body 209 to and through the second sidewall opposite the first sidewall of body 209. In other words, transverse cavity 227 forms a through-hole that extends through body 209.

[0116] The device 201 includes an output mechanism (forming part of the UI of the device 201) in the form of a plurality of light-emitting diodes (LEDs) 211, the plurality of LEDs 211 being linearly arranged along the longitudinal axis of the device 201 and on the outer surface of the body 209 of the device 201. A button 212 is also arranged on the outer surface of the body 209 of the device 201 and is axially spaced (i.e., along the longitudinal axis) from the plurality of LEDs 211.

[0117] Figure 2C A detailed cross-sectional view of the consumable 202 of the system 200 is shown. The consumable 202 generally resembles a cigarette. In this regard, the consumable 202 has a generally cylindrical shape with a diameter of 7 mm and an axial length of 70 mm. The consumable 202 includes an aerosol-forming substrate 213, a terminal filter element 214, an upstream filter element 215, and a spacer element 216. In other embodiments, the consumable may also include a cooling element. The cooling element may exchange heat with the vapor formed by the aerosol-forming substrate 213 in order to cool the vapor, thereby promoting the condensation of the vapor.

[0118] The aerosol-forming substrate 213 is substantially cylindrical and is located at the upstream end 217 of the consumable 202 and contains the aerosol precursor of the system 200. In this regard, the aerosol-forming substrate 213 is configured to be heated by the device 201 to release vapor. The released vapor is then entrained in an air flow passing through the aerosol-forming substrate 213. The air flow is generated by the user's act of sucking on the downstream end 218 (i.e., the terminal or mouthpiece) of the consumable 202.

[0119] In the present embodiment, the aerosol-forming substrate 213 contains tobacco material, which may include, for example, any suitable part of the tobacco plant (such as leaves, stems, roots, bark, seeds, and flowers). The tobacco may include one or more of tobacco leaves, tobacco stems, tobacco powder, tobacco dust, tobacco derivatives, expanded tobacco, homogenized tobacco, cut tobacco, extruded tobacco, shredded tobacco, and / or reconstituted tobacco (such as paper-processed or pulp-processed reconstituted tobacco). For example, the aerosol-forming substrate 213 may include collected homogenized (such as paper-processed / pulp-processed reconstituted) tobacco sheets or collected fragments / strips formed from such sheets.

[0120] In order to produce an aerosol, the aerosol-forming substrate 213 contains at least one volatile compound, which is intended to be vaporized / atomized and which may provide a recreational and / or therapeutic effect to the user when inhaled. The aerosol-forming substrate 213 may also contain one or more additives. For example, such additives may be in the form of humectants (such as propylene glycol and / or vegetable glycerin), flavorants, fillers, aqueous / non-aqueous solvents, and / or binders.

[0121] The end filter element 214 is also substantially cylindrical and is located at the downstream end 218 of the consumable 202 downstream of the aerosol-forming substrate 213. The end filter element 214 is in the form of a hollow pore filter element having pores 219 (e.g., for air flow) formed therethrough. The diameter of the pores 219 is 2 mm. The end filter element 214 is formed from a porous (e.g., monoacetate) filter material. As described above, the downstream end 218 of the consumable 202 (i.e., where the end filter 214 is located) forms the nozzle portion of the consumable 202 that the user sucks on. Air flow is drawn from the upstream end 217 through the components of the consumable 202 and exits the downstream end 218. The air flow is driven by the user sucking on the downstream end 218 (i.e., the nozzle portion) of the consumable 202.

[0122] The upstream filter element 215 is located between the aerosol-forming substrate 213 and the end filter element 214 and is axially adjacent to the aerosol-forming substrate 213. Similar to the end filter 214, the upstream filter element 215 is in the form of a hollow pore filter element such that it has pores 220 extending axially therethrough. In this way, the upstream filter 215 can act as an air flow restrictor. The upstream filter element 215 is formed from a porous (e.g., monoacetate) filter material. The pores 220 of the upstream filter element 214 have a larger diameter (3 mm) than the pores of the end filter element 214.

[0123] The spacer 216 is in the form of a cardboard tube that defines a cavity or chamber between the upstream filter element 215 and the end filter element 214. The spacer 216 is used to allow cooling and mixing of the vapor / aerosol from the aerosol-forming substrate 213. The spacer has an outer diameter of 7 mm and an axial length of 14 mm.

[0124] Although not apparent in the drawings, the aerosol-forming substrate 213, the upstream filter 215, and the spacer 216 are surrounded by a paper wrapper layer. The end filter 214 is surrounded by a tipping layer that also surrounds a portion of the paper wrapper layer (in order to connect the end filter 214 to the rest of the components of the consumable 202). The upstream filter 215 and the end filter 214 are surrounded by other wrapper layers in the form of filter rod wrappers.

[0125] Now turning back to the device 201, Figure 2D A detailed view of the end of the device 201 configured to engage with the consumable 202 is illustrated. The cap 210 of the device 201 includes an opening 221 leading to an inner cavity 222 defined by the cap 210 ( Figure 2D221 and cavity 222 are formed to accommodate at least a portion of consumable 202. During engagement of consumable 202 with device 201, a portion of consumable 202 is accommodated through opening 221 and enters cavity 222. After engagement (see Figure 2B ), the downstream end 218 of the consumable 202 protrudes from the opening 221 and therefore also from the device 201. The opening 221 includes laterally arranged notches 226. When the consumable 202 is accommodated in the opening 221, these notches 226 remain open and can, for example, be used to hold a cover to cover the end of the device 201.

[0126] Figure 2E A cross section through a central longitudinal plane of the device 201 is shown. The device 201 is shown as a consumable 202 engaged therewith. In addition, as shown, at least one locking arm 229 extends from the body 209. The locking arm 229 locks or holds the cap 210 with the body 209. In the illustrated embodiment, there are two locking arms 229. In an embodiment, any suitable number of locking arms 229 can be provided. As shown, the locking arm 229 extends substantially along the longitudinal axis of the body 209. The locking arm 229 is provided with a locking projection 231 at a distal end (i.e., an end away from the end of the locking arm 229 connected to the body 209). The locking projection 231 extends transversely to the longitudinal axis of the body 209. The locking arm 229 is positioned so that when the cap 210 is mounted on the body 209, the locking arm 229 engages the cap 210 to hold the cap 210 on the body 209.

[0127] In the embodiment shown, the cap 210 can be provided with a slot 232 extending along the longitudinal axis of the body 209 (when the cap 210 is retained on the body 209), and the locking projection 231 can be configured or positioned to engage the slot 232. The slot 232 can be elongated so that the cap 210 can move or slide relative to the body 209 along the longitudinal axis of the body 209. The locking projection 231 can have an abutment surface 233 to engage the outer peripheral surface 234 of the cap 210 that defines the slot 232. The abutment surface 233 can block the movement of the cap 210 in one direction by abutting the outer peripheral surface 234 to retain or lock the cap 210 with the body 209.

[0128] The cap 210 is movable between a first position and a second position. Figure 2A , Figure 2B and Figure 2D as well as Figure 4A The device 200 is illustrated with the cap 210 in a first position. When the cap 210 is in the first position, the cap 210 conceals the heating element 223, as shown. In the first position, the cap 210 completely covers the transverse cavity 227 to conceal the heating element 223.

[0129] Figure 3 and Figure 4B Illustrates device 200 with cap 210 in the second position. When cap 210 is in the second position, cap 210 at least partially exposes heating element 223. In the second position, cap 210 does not cover lateral cavity 227 to partially expose heating element 223. When heating element 223 is partially exposed, heating element 223 can be visually inspected to determine if heating element 223 needs to be cleaned. If needed, when cap 210 is in the second position, heating element 223 can be cleaned by blowing air through the opening or simply shaking, tilting, and / or gently tapping the device to remove and dislodge loose debris. In the second position, the abutment surface 233 of cap 210 can abut the outer peripheral surface 234, as discussed in the foregoing description.

[0130] Device 201 includes heater 204 that includes heating element 223. Heater 204 forms part of body 209 of device 201 and is securely mounted to body 209. In the illustrated embodiment, heater 204 is a rod-shaped heater, where heating element 223 has a circular lateral profile. In other embodiments, the heater can be in the form of a blade-shaped heater (e.g., a heating element having a rectangular lateral profile) or a tubular heater (e.g., a heating element having a tubular shape).

[0131] The heating element 223 of heater 204 projects from the inner base of cavity 222 towards opening 221 along the longitudinal axis. As is apparent from the drawings, the length of the heating element (i.e., along the longitudinal axis) is less than the depth of cavity 222. In this way, heating element 223 does not project or extend beyond opening 221.

[0132] When consumable 202 is received in cavity 222 (as Figure 2E shown), heating element 223 penetrates aerosol-forming substrate 213 of consumable 202. In particular, when heating element 223 is inserted therein, heating element 223 extends over substantially the entire axial length of aerosol-forming substrate 213. Thus, when heater 204 is activated, heat is radially transferred from the outer peripheral surface of heating element 223 to aerosol-forming substrate 213.

[0133] The smoking replacement system of the present disclosure can further include tool 235 for separating cap 210 from body 209. Tool 235 can be configured to displace locking arm 229 to enable separation of cap 210 from body 209. Figure 5A 、 Figure 5B and Figure 5CIllustrates a tool 235 according to an embodiment. The tool 235 has at least one unlocking arm 230. In the illustrated embodiment, two unlocking arms 230 are provided. The number of unlocking arms 230 can be provided as needed. In an embodiment, the number of unlocking arms 230 can correspond to the number of locking arms 229. The unlocking arms 230 are adapted to engage the locking arms 229 to displace the locking arms 229 for separating the cap 210 from the body 209. Each unlocking arm 230 can be provided with an unlocking protrusion 236. The unlocking protrusion 236 can extend in a direction perpendicular to the longitudinal axis of the unlocking arm 230. The unlocking protrusion 236 is adapted to engage the locking protrusion 231 to displace the locking protrusion 231 for disengaging the cap 210 from the body 209.

[0134] The tool 235 can include a central rod 237. A collar 238 can be positioned concentrically around the central rod 237. The collar 238 can be movably placed on the rod such that the collar 238 moves along the longitudinal axis of the central rod 237 relative to the central rod 237. The unlocking arms 230 can extend from the collar 238 along the longitudinal axis of the central rod 237. The collar 238 can move on the central rod 237 between an inserted position and an unlocked position. In the inserted position, the central rod 237 can be held away from the unlocking protrusion 236, and the unlocking arms 230 can be bent radially inward relative to the longitudinal axis of the central rod 237. In Figure 5B and Figure 6A it shows the collar 238 in the inserted position. In the unlocked position, the central rod 237 moves juxtaposed with the unlocking protrusion 236 to prevent the unlocking arms 230 from bending in a radially inward direction relative to the longitudinal axis of the central rod 237. Figure 6B Illustrates the collar 238 in the unlocked position. Appropriate settings can be provided on the collar 238 and the rod to allow and / or guide the movement of the collar 238 between the inserted position and the unlocked position. The collar 238 can be biased to move towards the inserted position using any suitable means (such as a helical spring).

[0135] As Figure 7 (a) to Figure 7(e) As shown, the tool 235 can be configured to be inserted within the cavity 222. The unlocking protrusion 236 is configured such that when the unlocking arm 230 is inserted within the cavity 222, the unlocking arm 230 displaces the locking arm 229 to disengage the locking arm 229 from the 232. In the illustrated embodiment, the unlocking protrusion 236 is configured such that when inserted within the cavity 222, the unlocking protrusion 236 enters a slot 232 defined in the cap 210 to displace the locking protrusion 231 so as to remove the cap 210 from the body 209. The unlocking protrusion 236 can have a dimension that interferes with the width of the cavity 222. Thus, to allow the unlocking arm 230 to be inserted within the cavity 222, at the insertion position, the central rod 237 is away from the distal end of the unlocking arm 230 to allow the distal end of the unlocking arm 230 to bend radially inwardly so that the unlocking arm 230 having the unlocking protrusion 236 can be inserted within the cavity 222. The bending can be achieved when the unlocking protrusion 236 abuts and slides against the inner surface 239 of the cap 210 that defines the inner cavity 222. As shown in the illustrated embodiment, the unlocking protrusion 236 can be provided with a tapered surface 240 to guide the bending movement of the unlocking arm 230 in and out of the cavity 222 and the slot 232. Figure 7 (a) shows the tool 235 inserted within the cavity 222, where the collar 238 is in the insertion position.

[0136] In an initial stage, the tool 235 can be pushed towards the body 209 (as shown by the direction arrow in Figure 6A ) to insert the unlocking arm 230 within the cavity 222 until the collar 238 abuts the opening of the cavity 222, as shown in Figure 6A and Figure 7 (b). At this stage, as shown in Figure 6A , the unlocking arm 230 enters the slot 232 defined in the cap 210. At this stage, the unlocking protrusion 236 may not fully displace the locking protrusion 231 as required to separate the cap 210. Further, as shown in Figure 6B , the central rod 237 can be pushed into the cavity 222 to move the collar 238 (relative to the central rod 237) to the unlocking position. When pushing the central rod 237, the unlocking protrusion 236 can be pushed radially outwardly to properly enter the slot 232 and occupy the slot 232, as shown in Figure 6B , to radially outwardly displace and move the locking protrusions 231 (as shown by the arrows) to remove them from the slot 232. After that, as shown in Figure 7 (d), the cap 210 together with the tool 235 can be pulled away from the body 209 to separate the cap 210 from the body 209. Figure 7 (e) illustrates the cap 210 completely separated from the body 209.

[0137] The tool 235 can also have a cleaning device for cleaning the heating element 223. As shown in Figure 5CAs shown, the cleaning device can be in the form of cleaning bristles 241. As Figure 5C As shown, the cleaning bristles 241 can extend from the central rod 237 in a direction opposite to the extension direction of the unlocking arm 230. The cleaning bristles 241 can rub on the outer surface of the heating element 223 to clean or remove any debris or residue from the heating element 223.

[0138] The tool 235 can include a first cover 242 to cover the unlocking arm 230 when not in use. In addition, a second cover 243 can be provided to cover the cleaning bristles 241 when not in use. The covers 242, 243 can be designed such that the tool 235 can visually resemble a consumable for a smoking alternative system. Suitable means can be provided to hold the covers on the tool 235.

[0139] The device 202 also includes an electronics cavity 224. A power source in the form of a rechargeable battery 205 (lithium-ion battery) is located in the electronics cavity 224.

[0140] The device 202 includes a connector in the form of a USB port 206 (i.e., forming part of the I / O module of the device 201). Alternatively, the connector can be, for example, a micro USB port or a USB-C port. The USB port 206 can be used to charge the rechargeable battery 205.

[0141] The device 202 includes a controller (not shown) located in the electronics cavity 224. The controller includes a microcontroller mounted on a printed circuit board (PCB). The USB port 206 is also connected to the controller 208 (i.e., connected to the PCB and the microcontroller).

[0142] The controller 208 is configured to control at least one function of the device 202. For example, the controller 208 is configured to control the operation of the heater 204. This control of the operation of the heater 204 can be achieved by the controller switching the electrical connection between the rechargeable battery 205 and the heater 204. For example, the controller is configured to control the heater 204 in response to the user pressing the button 212. Pressing the button 212 can cause the controller to allow voltage (from the rechargeable battery 205) to be applied to the heater 204 (so that the heating element 223 heats up).

[0143] The controller is also configured to control the LED 211 in response to (e.g., detecting) the state of the device 201 or the consumable 202. For example, the controller can control the LED to indicate whether the device 201 is in the on state or the off state (e.g., when the device is in the on state, one or more LEDs can be lit by the controller).

[0144] The device 202 also includes an input mechanism in the form of a draw sensor 225 (i.e., in addition to the button 212). The draw sensor 225 is configured to detect a user draw (i.e., inhalation) at the downstream end 218 of the consumable 202. The draw sensor 225 can be in the form of, for example, a pressure sensor, a flow meter, or a microphone. The draw sensor 225 is operatively connected to a controller 208 in the electronics cavity 224 such that a signal from the draw sensor 225 indicating the draw state (i.e., draw or no draw) forms an input to the controller 208 (and can thus be responded to by the controller 208).

[0145] Depending on the circumstances, the features disclosed in the foregoing description, or in the appended claims, or in the drawings, expressed in their specific forms or in the means for performing the disclosed functions, or in the method or process for obtaining the disclosed results, can be used alone or in any combination of such features to implement the invention in its various forms.

[0146] This application also includes the following embodiments: Embodiment 1: A smoking cessation device, comprising: a body; a heating element extending from the body; a cap removably connected to the body, the cap being movable along a longitudinal axis of the body between a first position and a second position, wherein in the first position, the heating element is hidden in the cap, and in the second position, the heating element is at least partially exposed.

[0147] Embodiment 2: The smoking cessation device according to Embodiment 1, wherein the cap can be held on the body in the second position by a retaining mechanism.

[0148] Embodiment 3: The smoking cessation device according to Embodiment 2, wherein the retaining mechanism comprises: at least one flexible locking arm extending from the body; and a locking protrusion provided on the at least one locking arm, the locking protrusion being configured to engage a slot defined in the cap to hold the cap on the body.

[0149] Embodiment 4: The smoking cessation device according to Embodiment 3, wherein the locking protrusion remains in the slot when the cap is moved between the first position and the second position.

[0150] Embodiment 5. The smoking cessation device according to any one of the foregoing Embodiments 1 to 4, wherein the body defines a transverse cavity that forms an opening through a first sidewall of the body, the transverse cavity being juxtaposed with a base of the heating element to at least partially expose the base of the heating element when the cap is in the second position.

[0151] Embodiment 6: A smoking replacement device as described in Embodiment 5, wherein the transverse cavity extends from the first side wall of the body to and through the second side wall opposite the first side wall.

[0152] Embodiment 7: A smoking replacement device as described in any one of Embodiments 3 to 6, wherein the locking protrusion is configured to prevent the cap from separating from the device by abutting against the end of the groove when the cap has moved to the second position, thereby preventing further movement of the cap.

[0153] Embodiment 8: A smoking replacement device as described in Embodiment 7, wherein the cap defines a cavity for receiving at least a portion of an aerosol-forming article.

[0154] Embodiment 9: A smoking replacement system, comprising: a smoking replacement device as described in any one of Embodiments 1 to 8; an aerosol-forming article for the smoking replacement device. Although the present invention has been described in connection with the above exemplary embodiments, many equivalent modifications and variations will be apparent to those skilled in the art when the present disclosure is given. Therefore, the exemplary embodiments of the present invention described above are to be considered illustrative and not restrictive. Various changes may be made to the described embodiments without departing from the spirit and scope of the present invention.

[0155] For the avoidance of any doubt, any theoretical explanations provided herein are provided for the purpose of enhancing the reader's understanding. The inventors do not wish to be bound by any of these theoretical explanations.

[0156] Any section headings used herein are for organizational purposes only and should not be construed as limiting the subject matter described.

[0157] Throughout the specification, including the appended claims, unless the context otherwise requires, the words "have", "comprise", "include" and variations such as "having", "comprises", "comprising" and "including" shall be understood to imply the inclusion of a stated integer or step or a group of integers or steps but not the exclusion of any other integer or step or a group of integers or steps.

[0158] It should be noted that, as used in the specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" include plural referents. Ranges may be expressed herein as from "about" one particular value and / or to "about" another particular value. When such a range is expressed, another embodiment includes from one particular value and / or to another particular value. Similarly, when values are expressed as approximations by use of the antecedent "about", it will be understood that the particular value forms another embodiment. The term "about" associated with a numerical value is optional and means, for example, + / - 10%.

[0159] As used herein, the words "preferred" and "preferably" refer to embodiments of the invention that may provide certain benefits in certain circumstances. However, it should be understood that other embodiments may also be preferred in the same or different circumstances. Thus, the recitation of one or more preferred embodiments is not intended to imply or suggest that other embodiments are unavailable, and is not intended to exclude other embodiments from the scope of the present disclosure or the scope of the claims.

Claims

1. A removal tool, comprising: an unlocking device configured to remove a cap of a smoking alternative device from a body of the smoking alternative device; and a cleaning device configured to clean the smoking alternative device when the cap is removed from the body.

2. The removal tool according to claim 1, wherein the unlocking device and the cleaning device are located at different ends of the removal tool.

3. The removal tool according to claim 1 or 2, wherein the cleaning device includes one or more cleaning bristles.

4. A smoking alternative system, comprising the removal tool according to any one of the preceding claims and the smoking alternative device.

5. The smoking alternative system according to claim 4, wherein the smoking alternative device has a tubular heater.

6. The smoking alternative system according to claim 4, wherein the cap is movable between a first position and a second position to selectively hide or expose a heating element of the smoking alternative device.

7. The smoking alternative system according to claim 6, wherein the cap is securable to the body in the second position by a retaining mechanism.

8. The smoking alternative system according to claim 7, wherein the retaining mechanism comprises: at least one flexible locking arm extending from the body; and a locking protrusion provided on the at least one locking arm and configured to engage a slot defined in the cap to retain the cap on the body.

9. The smoking alternative system according to claim 8, wherein the locking protrusion remains in the slot when the cap is moved between the first position and the second position.

10. The smoking alternative system according to any one of claims 6 to 9, wherein the body defines a transverse cavity that forms an opening through a first sidewall of the body and is juxtaposed with a base of the heating element to at least partially expose the base of the heating element when the cap is in the second position.

11. The smoking alternative system according to claim 10, wherein the transverse cavity extends from the first sidewall of the body to and through a second sidewall opposite the first sidewall.

12. The smoking alternative system according to any one of claims 8 to 11, wherein the locking protrusion is configured to prevent the cap from separating from the device by abutting an end of the slot when the cap has moved to the second position, thereby preventing further movement of the cap.

13. The smoking alternative system according to claim 12, wherein the cap defines a cavity for receiving at least a portion of an aerosol-forming article.

14. The smoking alternative system according to any one of claims 4 to 13, further comprising an aerosol-forming article for the smoking alternative device.

15. A smoking alternative system, comprising the removal tool according to any one of claims 1 to 3 and an aerosol-forming article for the smoking alternative device.

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