Smoking substitute system

Abstract

To provide an HT smoking substitute system with enhanced user experiences and improved functions of the system.SOLUTION: A heat-not-burn device comprises a controller, a heater, and a user interface. The controller is configured to, based on a user selection received at the user interface, selectively enter into a locked operating mode or a standby operating mode, so that the heater is deactivated in both operating modes. The controller is further configured to activate the heater upon receiving, at the user interface: i) a first predetermined user input when the device is entered into the locked operating mode or ii) a second predetermined user input different than the first predetermined user input when the device is entered into the standby operating mode.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] [1] The present invention relates to smoking substitution systems, and particularly, but not exclusively, to smoking substitution systems including non-combustion heated devices, and aerosol-forming articles. [Background technology]

[0002] [2] Tobacco smoking is generally considered to expose smokers to potentially harmful substances. It is generally believed that significant amounts of potentially harmful substances are produced through the burning of tobacco and / or the heat caused by tobacco combustion, as well as through the burnt tobacco components in the tobacco smoke itself.

[0003] [3] Conventional combustible smoking articles, such as cigarettes, typically include a cylindrical tobacco rod comprising strips of tobacco surrounded by a wrapper, and typically also include a cylindrical filter axially aligned in abutting relationship with the rolled tobacco rod. The filter typically includes a filtration material circumscribed by a plug wrap. The rolled tobacco rod and filter are held together by a rolled strip of tipping paper that circumscribes the entire length of the filter and adjacent portions of the rolled tobacco rod. Conventional cigarettes of this type are used by lighting the end opposite the filter to burn the tobacco rod. The smoker receives mainstream smoke into his or her mouth by drawing on the mouth or filter end of the cigarette.

[0004] [4] The combustion of organic materials such as tobacco is known to produce tar and other potentially harmful by-products. A variety of smoking substitution systems (or "smoking substitute systems") have been proposed to avoid smoking tobacco.

[0005] [5] Such smoking substitution systems can form part of nicotine replacement therapy aimed at people wishing to quit smoking and overcome their dependence on nicotine.

[0006] [6] Smoking substitution systems include electronic systems that allow a user to simulate the act of smoking by producing an aerosol (also called "vapor") that is drawn into the lungs (inhaled) through the mouth and then exhaled. The inhaled aerosol typically contains nicotine and / or flavorings without or with fewer of the odors and health risks associated with traditional smoking.

[0007] [7] Generally, smoking substitution systems are intended to provide a substitute for the habitual behavior of smoking while providing users with an experience and satisfaction similar to that experienced with traditional smoking and combustible tobacco products. Some smoking substitution systems use smoking substitution articles (also called "consumables") that are designed to resemble a traditional cigarette and are cylindrical in shape with a mouthpiece at one end.

[0008] [8] The popularity and use of smoking-substitution systems has grown rapidly over the past few years. Although originally marketed as aids to assist regular smokers wishing to quit smoking cigarettes, consumers increasingly view smoking-substitution systems as a desirable lifestyle accessory.

[0009] [9] There are several different categories of smoking proxy systems, each of which utilizes a different smoking proxy approach.

[0010]

[10] One approach for smoking substitution systems is the so-called heated tobacco ("HT") approach, in which tobacco (not "e-liquid") is heated or warmed to release vapor. HT is also known as "heat-not-burn" ("HNB"). The tobacco may be leaf tobacco or reconstituted tobacco. The vapor may contain nicotine and / or flavorings. In the HT approach, the intention is that the tobacco is heated without being burned, i.e., the tobacco does not undergo combustion.

[0011]

[11] A typical HT smoking substitution system may include a device and a consumable. The consumable may include tobacco material. The device and consumable may be configured to be physically coupled together. In use, heat may be applied to the tobacco material by a heating element of the device, and airflow through the tobacco material causes components in the tobacco material to be released as vapor. The vapor may also be formed from a carrier in the tobacco material (which may include, for example, propylene glycol and / or vegetable glycerin), as well as volatile compounds released from the tobacco. The released vapor may be entrained in the airflow drawn through the tobacco.

[0012]

[12] As the vapor passes through the consumable (entrained in the airflow) from the point of evaporation to the outlet of the consumable (e.g., the mouthpiece), the vapor cools and condenses to form an aerosol for inhalation by the user. The aerosol typically contains volatile compounds.

[0013]

[13] In HT smoking substitute systems, it is believed that heating, as opposed to burning, tobacco material results in fewer or lower amounts of more harmful compounds typically produced during smoking. As a result, the HT approach can reduce odor and / or health risks that can result from tobacco burning, tobacco combustion, and pyrolytic degradation.

[0014]

[14] When not in use, currently available HT smoking substitute devices typically enter a standby mode of operation. That is, the heater of such HT smoking substitute devices may be reactivated upon receipt of a single user press of a user interface. However, such devices may present a hazard to unauthorized users, particularly minors. Furthermore, when the devices are shipped and stored in a standby mode of operation, they may be inadvertently powered on when the user interface is pressed.

[0015]

[15] Improved designs of smoking proxy systems, especially HT smoking proxy systems, are needed to enhance the user experience and improve the functionality of HT smoking proxy systems.

[0016]

[16] The present disclosure has been devised in view of the above problems. Summary of the Invention

[0017]

[17] Most generally, the present invention relates to a non-combustion heating device configured to enter a locked or standby mode of operation based on a user selection. Activating the heater from the locked mode of operation may require a user input of more complex settings than a single user press, which may make the heater child-proof or provide an extra layer of protection against inadvertent activation of the device. At the same time, however, entering such a user input of complex settings each time the device is used may be inconvenient for the user. Thus, the present invention may advantageously allow a user to select between a locked mode of operation and a standby mode of operation according to the user's preferences.

[0018]

[18] According to a first aspect of the present invention, there is provided a non-combustion heated device including a controller, a heater, and a user interface, wherein the controller is configured to selectively enter a locked mode of operation or a standby mode of operation based on a user selection received at the user interface, whereby the heater is deactivated in both modes of operation, and the controller is further configured to activate the heater at the user interface: i) upon receiving a first predetermined user input when the device enters the locked mode of operation, or ii) upon receiving a second predetermined user input when the device enters the standby mode of operation, the second predetermined user input being different from the first predetermined user input.

[0019]

[19] Generally, the heater may be deactivated when the device enters both the locked and standby modes of operation, but the controller and other electronic components of the device, such as the user interface, may remain active or operational when the device enters the locked and standby modes of operation.

[0020]

[20] For example, the heaters may be deactivated in both operational modes, while each heater may require a unique predefined user input to reactivate the heater. More specifically, the first predefined user input may be a set of user inputs that involve a more complicated technique than the second predefined user input to avoid unwarranted heater activation, e.g., the user must unlock the device to activate the heater. On the other hand, the second predefined user input may be a much simpler input technique, such that the user can conveniently activate the heater.

[0021]

[21] The heater may or may not activate when a first predefined user input is received in the standby mode of operation. For example, the heater may nevertheless activate when the first predefined user input is received if a second predefined user input (e.g., a single user press) forms part of the first predefined user input (e.g., multiple user presses). Alternatively, the heater may not activate when the first predefined user input is received even if a second predefined user input (e.g., a single user press within a given time frame) forms part of the first predefined user input (e.g., multiple user presses within a given time frame).

[0022]

[22] In the locked mode of operation, the heater may not activate upon receipt of the second predetermined user input, or any other user input other than the first predetermined user input, thereby advantageously preventing the heater from activating unless a specific first predetermined user input is received.

[0023]

[23] Depending on the type of given user input applied, the user interface may include one or more of user buttons, a keypad, a camera, or a fingerprint reader, which may allow the given user input to be entered in one or more possible ways.

[0024]

[24] Optional features are described below, which may be applied alone or in any combination with any aspect.

[0025]

[25] Optionally, the user selection comprises a predetermined user selection, and the controller is configured to deactivate the heater and place the device into a locked or standby mode of operation upon detecting the occurrence of a predetermined event.

[0026]

[26] For example, the predetermined user selection may be a user selection received prior to activation of the heater and may be stored in the device memory. Thus, upon detecting the occurrence of a predetermined event, the controller may retrieve the predetermined user selection from the memory, and upon deactivating the heater, the controller may place the device into one of a locked or standby mode of operation based on said predetermined user selection. Such a predetermined user selection stored in the memory may be overwritten after the user inputs a new user selection at the user interface. For example, the user may select the standby mode of operation as a default, such that the device enters the standby mode of operation whenever the heater is deactivated. The user may optionally select the locked mode of operation, thereby overwriting a previous user selection if desired.

[0027]

[27] Such an arrangement advantageously simplifies operation of the device since it does not require the user to input user selections with each use.

[0028]

[28] Optionally, the predetermined event includes one or more of: i) depletion or exhaustion of the consumable; ii) removal of the consumable from the device; iii) retraction of the cap of the device; and iv) the passage of a predetermined period of time since activation of the heater.

[0029]

[29] The predetermined event may correspond to the end of a user session or a smoking session. For example, the controller may be configured to automatically deactivate the heater. This may advantageously enable the device to avoid overheating of the heater or consumables, thereby reducing associated risks, as well as reducing energy drain on the battery.

[0030]

[30] The device may include one or more detectors for detecting the predetermined event. A microswitch or other means may be provided that detects relative movement between the cap, the consumable, and the device, thereby signaling the controller to deactivate the heater. A puff sensor may be provided that counts the number of puffs made and / or the number remaining before the consumable is depleted. For example, the controller may be configured to deactivate the heater when the number of puffs made reaches a predetermined number of puffs possible for the consumable. The controller may determine the time elapsed since the last activation or puff of the heater, and may deactivate the heater when the elapsed time reaches a predetermined period.

[0031]

[31] Alternatively, or in addition, upon receiving a user selection at the user interface, the controller is configured to deactivate the heater and place the device into a locked or standby mode of operation. More specifically, the user selection may be received when the heater is activated, for example, during a user session. That is, a user selection received during a user session may deactivate the heater, for example, the session may not terminate upon detecting the occurrence of a predetermined event as described, but may terminate based on receiving a user selection. Alternatively, a user selection received during a user session may not deactivate the heater, for example, the session may continue and terminate only upon detecting the occurrence of a predetermined event as described. Furthermore, a user selection received during activation of the heater may overwrite a predetermined user selection stored in the device memory.

[0032]

[32] Optionally, the user selection includes different selection inputs for respectively placing the device into the respective locked and standby modes of operation. For example, the selection input for entering the locked mode of operation may be a user press held on the user interface for a given amount of time, e.g., at least 2 seconds, and the selection input for entering the standby mode of operation may be multiple shorter user presses on the user interface, each lasting less than 1 second, e.g., multiple taps on the user interface. The selection inputs may be entered on the user interface before or during activation of the heater during the session.

[0033]

[33] Optionally, the first predefined user input comprises multiple user presses at the user interface and the second predefined user input comprises one or more user presses at the user interface, the number of user presses at the second predefined user input being less than the number of user presses at the first predefined input. The user interface may be a button or a touchpad. The user presses may be input at the user interface within a predefined time period. The user presses may be input at the user interface as a user press sequence at a predefined frequency. For example, the number of user presses in the first predefined sequence may be at least three presses, or in the range of three to five presses, preferably five presses. The number of user presses in the second predefined sequence may be two presses or less, preferably a single user press. Advantageously, such an arrangement results in a noticeable distinction between the first predefined user input and the second predefined user input, thereby reducing the likelihood of activating the heater when a user input other than the first predefined user input is input at the user interface.

[0034]

[34] Optionally, the first predetermined user input includes at least one of a user password and a fingerprint input received at an interface. For example, the first predetermined user input may be a password or code entered at a keyboard or keypad. The first predetermined user input may be a fingerprint identifiable by a fingerprint recognizer. This may advantageously allow the device to be locked from unauthorized users, such as minors.

[0035]

[35] Optionally, the second predetermined user input includes a single user press on the user interface. For example, the single user press may be a short user press on the user interface lasting less than one second, or may require the user to hold the user press on the user interface lasting more than one second. Preferably, the single user press may include a user press lasting less than one second, such that the user can quickly activate the heater from a standby mode of operation.

[0036]

[36] Optionally, the device may include a user interface for receiving predetermined user input including at least one of a user password, pressing the power button in a predetermined pattern for a predetermined period of time, and fingerprint detection.

[0037]

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

[0038]

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

[0039]

[39] The heater (and thus the heating element) may be rigidly attached to the body. The heating element may be elongated to define a longitudinal axis and may, for example, have a substantially circular transverse profile (i.e., transverse to the longitudinal axis of the heating element) (i.e., the heating element may be generally cylindrical). Alternatively, the heating element may have a rectangular transverse profile (i.e., the heater may be a "blade heater"). Alternatively, the heating element may be shaped like a tube (i.e., the heater may be a "tubular heater"). The heating element may take other shapes (e.g., the heating element may have an oval transverse profile). The shape and / or size (e.g., diameter) of the transverse profile of the heating element may be generally consistent throughout (or substantially throughout) the length of the heating element.

[0040]

[40] The heating element may be 15mm to 25mm long, such as 18mm to 20mm long, such as about 19mm long. The heating element may have a diameter of 1.5mm to 2.5mm, such as a diameter of 2mm to 2.3mm, such as a diameter of about 2.15mm.

[0041]

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

[0042]

[42] The heating element may be located in a cavity (of the device) and may extend from an interior base of the cavity toward an opening of the cavity (e.g., along a longitudinal axis). The length of the heating element (i.e., the length along the longitudinal axis of the heater) may be less than the depth of the cavity. Thus, the heating element may extend over only a portion of the length of the cavity. That is, the heating element may not extend through (or beyond) the opening of the cavity.

[0043]

[43] The heating element may be configured to be inserted into the aerosol-forming article (e.g., an HT consumable) when the aerosol-forming article is received in the cavity. In that regard, a distal end of the heating element (i.e., distal from a base of the heating element attached to the device) may include a tapered portion, which may facilitate insertion of the heating element into the aerosol-forming article. When the aerosol-forming article is received in the cavity, the heating element may fully penetrate the aerosol-forming article. That is, the entire length or substantially the entire length of the heating element may be received in the aerosol-forming article.

[0044]

[44] The heating element may have a length less than or substantially the same as the axial length of the aerosol-forming substrate forming part of the aerosol-forming article (e.g., HT consumable). Thus, when such an aerosol-forming article is engaged with a device, the heating element may penetrate only the aerosol-forming substrate and not other components of the aerosol-forming article. The heating element may 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 may be transferred from the heating element (e.g., its outer circumferential surface) to the surrounding aerosol-forming substrate. That is, heat may be transferred radially outward (in the case of a cylindrical heating element) or, for example, radially inward (in the case of a tubular heater).

[0045]

[45] When 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 (i.e. heat) a portion of the aerosol-forming article. In particular, the heating element can surround an aerosol-forming substrate of the aerosol-forming article. That is, when the aerosol-forming article is engaged with the device, the aerosol-forming substrate of the aerosol-forming article can be located adjacent to an inner surface of the (tubular) heating element. When the heating element is activated, heat can be transferred radially inward from the inner surface of the heating element to heat the aerosol-forming substrate.

[0046]

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

[0047]

[47] In some embodiments, the device can include a cap disposed on an end of the body configured to engage the aerosol-forming article. If the device includes a heater having a heating element, the cap can at least partially surround the heating element. The cap can be movable between an open position, in which access to the heating element is provided, and a closed position, in which the cap at least partially surrounds the heating element. The cap can be slidably engaged to the body of the device and can be slidable between the open and closed positions.

[0048]

[48] ​​The cap can define at least a portion of the cavity of the device. That is, the cavity can be completely defined by the cap, or the cap and the body can each define a portion of the cavity. If the cap completely defines the cavity, the cap can include an opening for receiving the heating element into the cavity (when the cap is in the closed position). The cap can include an opening to the cavity. The opening can be configured to receive at least a portion of the aerosol-forming article. That is, the aerosol-forming article can be inserted into the cavity (engaged to the device) through the opening.

[0049]

[49] The cap may be configured such that when the aerosol-forming article is engaged with the device (e.g., received in the cavity), only a portion of the aerosol-forming article is received in the cavity. That is, a portion of the aerosol-forming article (not received in the cavity) may protrude from the opening (i.e., extend beyond the opening). This (protruding) portion of the aerosol-forming article may be an end (e.g., a mouth end) of the aerosol-forming article, which may be received in the mouth of a user for the purpose of inhaling an aerosol formed by the device.

[0050]

[50] The device may include a power source or may be connectable to a power source (e.g., a power source separate from the device). The power source may be electrically connectable to the heater. In that regard, changing (e.g., toggling) the electrical connection of the power source to the heater may affect the state of the heater. For example, toggling the electrical connection of the power source to the heater may toggle the heater between an on state and an off state. The power source may be a power store. For example, the power source may be a battery or a rechargeable battery (e.g., a lithium ion battery).

[0051]

[51] 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 to connect to an external power source, such as a power outlet. The input connection may optionally be used as a substitute for an internal power source (e.g., a battery or a rechargeable battery). That is, the input connection may be electrically connectable to a heater (to provide power to the heater). Thus, in some forms, the input connection may form at least a portion of the power source of the device.

[0052]

[52] If the power source includes a rechargeable power source (such as a rechargeable battery), the input connection may be used to charge and recharge the power source.

[0053]

[53] The device may include a user interface (UI). In some embodiments, the UI may include input means for receiving operational commands from a user. For example, the UI may be configured to receive user inputs or user presses, i.e., a first predefined user input, a second predefined user input, and / or a user selection, e.g., a selection input. Specifically, the user inputs include at least one of a user password, a power button press (user press), and fingerprint detection. The input means of the UI may enable the user to control at least one form of operation of the device. In some embodiments, the input means may include a power button for switching the device between an on state and an off state.

[0054]

[54] In some embodiments, the UI may additionally or alternatively include an output means for communicating information to a user. In some embodiments, the output means may be configured to indicate to the user the current operating mode of the device. In some embodiments, the output means may also include a light for indicating a 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 a status indicative of the operation 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, and the like. For example, the output means may include one or more (e.g., two, three, four, etc.) light-emitting diodes ("LEDs"), which may be located on the body of the device.

[0055]

[55] The device may further include a puff sensor (e.g., an airflow sensor), which forms part of the input means of the UI. The puff sensor may be configured to detect when the user has inhaled on the end (i.e., the distal (oral) end) of 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 a puff state. The signal may indicate when the user has inhaled (aerosol from the aerosol-forming article), for example in the form of a binary signal. Alternatively, or in addition, the signal may indicate characteristics of the inhalation (e.g., flow rate of the inhalation, length of time of the inhalation, etc.). In some embodiments, the device may include one or more other types of detectors or sensors for detecting the occurrence of a predetermined event, such as a motion sensor, a pressure sensor, a microswitch, etc. The predetermined event may include one or more of (i) depletion or exhaustion of the consumable, (ii) removal of the consumable from the device, (iii) retraction of the cap of the device, and (iv) activation of the heater or passage of a predetermined period of time since the last puff taken.

[0056]

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

[0057]

[57] The controller may be configured to control operation of the heater (and, for example, the heating element). Thus, the controller may be configured to control evaporation of an aerosol-forming portion of an aerosol-forming article engaged with the device. Additionally, the controller may be configured to selectively enter a locked or standby mode of operation based on a user selection received at the user interface. Additionally, the controller may be configured to activate the heater when: i) a first predetermined user input is received at the user interface when the device enters the locked mode of operation; or ii) a second predetermined user input, different from the first predetermined user input, is received at the user interface when the device enters the standby mode of operation.

[0058]

[58] Additionally, the controller may be configured to control the voltage applied by the power supply to the heater. For example, the controller may be configured to toggle between applying the full output voltage (of the power supply) to the heater and applying no voltage to the heater. Alternatively, or in addition, the control unit may implement a more complex heater control protocol.

[0059]

[59] The device may further include a voltage regulator for regulating the output voltage provided by the power supply to form a regulated voltage. The regulated voltage may then be applied to the heater. In some embodiments, the voltage regulator may be configured to regulate the output voltage provided by the power supply to the heater in both the locked and standby modes of operation. For example, during the locked and standby modes of operation, the voltage regulator may not allow the power supply to supply power to the heater.

[0060]

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

[0061]

[61] The controller may be configured to send output signals to components of the UI. The UI may be configured to communicate information to a user via the output means in response to such output signals (received from the controller). For example, if the device includes one or more LEDs, the LEDs may be operatively connected to the controller. The controller may thus be configured to control illumination of the LEDs (e.g., in response to the output signals). For example, the controller may be configured to control illumination of the LEDs according to a state of a heater (e.g., on or off).

[0062]

[62] Where the device includes a sensor (e.g., a puff / airflow sensor), the controller may be operatively connected to the sensor. The controller may be configured to receive a signal from the sensor (e.g., indicative of a state of the device and / or an engaged aerosol-forming article). The controller may be configured to control the heater, or a form of the output means, based on the signal from the sensor.

[0063]

[63] The device may include a wireless interface configured to communicate wirelessly (e.g., via Bluetooth (e.g., a Bluetooth low energy connection) or WiFi) with an external device. Similarly, the input connection may be configured for a wired connection to an external device to provide communication between the device and the external device.

[0064]

[64] The external device may be a mobile device. For example, the external device may be a smartphone, a tablet, a smartwatch, or a smart car. The external device (e.g., a mobile device) may have an application (e.g., an app) installed on it. The application may facilitate communication between the device and the external device via a wired or wireless connection.

[0065]

[65] The wireless or wired interface may be configured to communicate signals between the external device and the controller of the device. In this regard, the controller may control the configuration of the device in response to signals received from the external device. Alternatively, or in addition, the external device may respond to signals received from the device (e.g., the controller of the device).

[0066]

[66] In a second aspect, there is provided a system (e.g., a smoking substitution system) comprising a non-combustion heating device according to the first aspect and an aerosol-forming article. The aerosol-forming article may comprise an aerosol-forming substrate at an upstream end of the aerosol-forming article. The article may be in the form of a smoking substitution article, such as a heated tobacco (HT) consumable (also known as a heated non-combustion (HNB) consumable).

[0067]

[67] 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.

[0068]

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

[0069]

[69] To generate an aerosol, the aerosol-forming substrate comprises at least one volatile compound that is intended to be vaporized / aerosolized and that, when inhaled, can provide a recreational and / or medicinal effect to the user. Suitable chemically and / or physiologically active volatile compounds include the group consisting of nicotine, cocaine, caffeine, opiates and opoids, cathine and cathinone, kavalactones, mysticin, beta-carboline alkaloids, salvinorin A, together with any combinations, functional equivalents, and / or synthetic substitutes of the above.

[0070]

[70] The aerosol-forming substrate can include plant material. Plant materials include Amaranthus dubius, Arctostaphylos uva-ursi, Argemone mexicana, Amica, Artemisia vulgaris, Yellow Tees, Galea zacatechichi, Canavalia maritima (Baybean), Cecropia mexicana (Guamura), Cestrum noctumum, Cynoglossum virginianum (wild comfrey), Cytisus scoparius, damiana, Entada rheedii, Eschscholzia califomica (California Poppy), Fittonia albivenis, Hippobroma longiflora, Humulus japonica (Japanese) Hops (Kanamugra)), Humulus lupulus(Hops), Lactuca virosa(Lettuce), Laggera alata, Leonotis leonurus, Leonurus cardiaca(Motherwort), Leonurus sibiricus(Honeyweed), Lobelia cardinalis, Lobelia inflata(Indian-tobacco), Lobelia siphilitica, Nepeta cataria(Catnip), Nicotiana species(Tobacco), Nymphaea alba(White Lily), Nymphaea caerulea(Blue Lily), Opium poppy, Passiflora incamata(Passionflower), Pedicularis densiflora(Indian Warrior (Indian Warrior), Pedicularis groenlandica (Elephant'sHead(Elephant Head), Salvia divinorum, Salvia dorrii(Tobacco Sage), Salvia spp.(Sage), Scutellaria galericulata, Scutellaria lateriflora, Scutellaria nana, Scutellaria spp.(Skullcap), Sida acuta(Wireweed), Sida rhombifolia, Silene capensis, Syzygium aromaticum(Clove), Tagetes lucida(Mexican Tarragon(Mint Marigold), Tarchonanthus camphoratus, Tumera diffusa(Damiana), Mullein spp., Zamia latifolia(Maconha The composition may comprise at least one plant material selected from the list including Maconha brava (Maconha brava) together with any combination, functional equivalent, and / or synthetic alternative of the above.

[0071]

[71] The plant material may be tobacco. Any type of tobacco may be used, including, but not limited to, flue-cured, burley, Maryland, dark air-cured, Oriental, dark flue-cured, perique, and rustica. This also includes blends of the aforementioned tobaccos.

[0072]

[72] Tobacco can include one or more of leaf tobacco, stem tobacco, tobacco powder, tobacco dust, tobacco derivatives, expanded tobacco, homogenized tobacco, cut tobacco, extruded tobacco, cut rag tobacco, and / or reconstituted tobacco (e.g., slurry recon or paper recon).

[0073]

[73] The aerosol-forming substrate may comprise a collecting sheet of homogeneous (eg, paper / slurry recon) tobacco, or a collecting strip / strip formed from such a sheet.

[0074]

[74] The aerosol-forming substrate may include one or more additives selected from humectants, flavoring agents, bulking agents, aqueous / non-aqueous solvents, and binders.

[0075]

[75] The flavorings may be provided in solid or liquid form. Flavorings may include menthol, licorice, chocolate, fruit flavors (including, e.g., citrus, cherry, etc.), vanilla, spices (e.g., ginger, cinnamon), and tobacco flavors. The flavorings may be uniformly dispersed throughout the aerosol-forming substrate or may be provided at discrete locations and / or varying concentrations throughout the aerosol-forming substrate.

[0076]

[76] The aerosol-forming substrate may be formed in a substantially cylindrical shape such that the article / consumable resembles a conventional cigarette. The aerosol-forming substrate may have a diameter of 5 to 10 mm, such as 6 to 9 mm or 6 to 8 mm, for example about 7 mm. The aerosol-forming substrate may have an axial length of 10 to 15 mm, for example 11 to 14 mm, such as about 12 or 13 mm.

[0077]

[77] The article / consumable may include at least one filter element. A terminal filter element may be located at the downstream / mouth end of the article / consumable.

[0078]

[78] The or at least one filter element (e.g., an end filter element) may be constructed from cellulose acetate or polypropylene tow. The at least one filter element (e.g., an end filter element) may be constructed from activated carbon. The at least one filter element (e.g., an end element) may be constructed from paper. The or each filter element may be at least partially (e.g., entirely) circumscribed by a plug wrap, e.g., a paper plug wrap.

[0079]

[79] A terminal filter element (the downstream end of the article / consumable) can be joined to an upstream element to form the article / consumable by a circumscribing tipping layer, e.g., a tipping paper layer. The tipping paper can have an axial length greater than the axial length of the terminal filter element, such that the tipping paper completely circumscribing the terminal filter element and the wrap layer surrounding any adjacent upstream elements.

[0080]

[80] In some embodiments, the article / consumable may include an aerosol cooling element adapted to cool the aerosol generated (by heat exchange) from the aerosol-forming substrate before it is inhaled by the user.

[0081]

[81] The article / consumable may include a spacer element that defines a space or cavity between the aerosol-forming substrate and the downstream end of the consumable. The spacer element may include a paper tube. The spacer element may be circumscribed by a (paper) wrap layer.

[0082]

[82] According to a third aspect of the present invention, there is provided a method of using the system according to the second aspect, the method comprising inserting an aerosol-forming article into the device and heating the article using a heater of the device.

[0083]

[83] Optionally, the method may include inserting an article into a cavity in a body of the device, and penetrating a heating element of the device as the article is inserted.

[0084]

[84] According to a fourth aspect of the present invention, there is provided a method of operating a non-combustion heated device according to the first aspect, the method comprising: i) receiving a user selection; ii) entering a locked or standby mode of operation based on the user selection; and iii) activating a heater when a first predetermined user input is received when the device has entered the locked mode of operation, or when a second predetermined user input is received when the device has entered the standby mode of operation.

[0085]

[85] Optionally, the method further comprises i) detecting the occurrence of a predetermined event; and ii) deactivating the heater and placing the device in a locked or standby mode of operation.

[0086]

[86] The present invention includes combinations of the described embodiments and preferred features except where such combinations are expressly impermissible or expressly avoided.

[0087]

[87] Those skilled in the art will recognize that, unless mutually exclusive, any feature or parameter described in connection with any one of the above embodiments may also be applied to any other embodiment. Further, unless mutually exclusive, any feature or parameter described herein may be applied to any embodiment and / or may be combined with any other feature or parameter described herein. [Brief description of the drawings]

[0088]

[88] So that the present invention may be understood, and further aspects and features thereof may be realized, embodiments illustrating the principles of the invention will now be described in more detail, with reference to the accompanying drawings. [Figure 1A]

[89] Figure 1A is a schematic diagram of a smoking substitution system. [Figure 1B]

[90] FIG. 1B is a schematic diagram of a variation of the smoking substitution system of FIG. 1A. [Figure 2A]

[91] FIG. 2A is a front view of a first embodiment of a smoking substitution system with a consumable engaged to the device. [Figure 2B]

[92] FIG. 2B is a front view of a first embodiment of a smoking substitution system, with the consumables detached from the device. [Figure 2C]

[93] FIG. 2C is a cross-sectional view of a consumable of a first embodiment of a smoking substitution system. [Figure 2D]

[94] FIG. 2D is a detailed view of the end of the device of the first embodiment of the smoking substitution system. [Figure 2E]

[95] FIG. 2E is a cross-sectional view of a first embodiment of a smoking substitution system. [Diagram 3]

[96] Figure 3 is a flow diagram illustrating a method of operation of the smoking substitution device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0089]

[97] Aspects and embodiments of the present invention are discussed below with reference to the accompanying figures. Further aspects and embodiments will be apparent to those skilled in the art. All documents mentioned in this text are incorporated herein by reference.

[0090]

[98] Figure 1A is a schematic diagram providing a general overview of a smoking substitution system 100. System 100 includes a substitute smoking device 101 and an aerosol-forming article in the form of a consumable 102, which includes an aerosol former 103. The system is configured to vaporize the aerosol former 103 by heating the aerosol former 103 (forming a vapor / aerosol for inhalation by a user).

[0091]

[99] In the system shown, the heater 104 forms part of the consumable 102 and is configured to heat the aerosol former 103. In this variation, the heater 104 is electrically connectable to a power source 105, for example when the consumable 102 is engaged with the device 101. Heat from the heater 104 causes the aerosol former 103 to evaporate, producing a vapor. The vapor then condenses to form an aerosol, which is ultimately inhaled by the user.

[0092]

[0100] The system 100 further includes a power source 105, which forms part of the device 101. In other embodiments, the power source 105 may be located external to the device 101 (but connectable to the device 101). The power source 105 may be electrically connectable to the heater 104 such that the power source 105 can provide power to the heater 104 (i.e., for heating the aerosol formation body 103). Thus, controlling the electrical connection of the power source 105 to the heater 104 provides control of the state of the heater 104. The power source 105 may be a power store, such as a battery or a rechargeable battery (e.g., a lithium ion battery).

[0093]

[0101] The system 100 further includes an I / O module that includes a connector 106 (e.g., in the form of a USB port, a Micro USB port, a USB-C port, etc.). The connector 106 is configured to connect to an external power source, e.g., a power outlet. The connector 106 may be used as a substitute for the power source 105; that is, the connector 106 may be electrically connectable to the heater 104 to provide electricity to the heater 104. In such an embodiment, the device may not include a power source, and instead the power source of the system may include the connector 106 and the external power source (with the connector 106 providing the electrical connection).

[0094]

[0102] In some embodiments, the connector 106 may be used to charge and recharge the power source 105 if the power source 105 includes a rechargeable battery.

[0095]

[0103] The system 100 also includes a user interface (UI) 107. Although not shown, the UI 107 may include input means for receiving commands from a user. The input means of the UI 107 allows a user to control at least one aspect of the operation of the system 100. The input means may be in the form of, for example, buttons, a touch screen, switches, a microphone, etc.

[0096]

[0104] The UI 107 also includes output means for communicating information to the user, which may include, for example, lights (e.g., LEDs), a display screen, a speaker, a vibration generator, etc.

[0097]

[0105] The system 100 further includes a controller 108 and a memory 109 operably coupled to the controller 108, the controller 108 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 (but connectable to) the device 101. Additionally, the controller 108 may be configured to selectively enter a locked or standby mode of operation based on a user selection received at the user interface 107. Additionally, the controller may be configured to activate the heater 104 upon receiving at the user interface 107: i) a first predefined user input when the device 101 enters the locked mode of operation, or ii) a second predefined user input different from the first predefined user input when the device 101 enters the standby mode of operation. Additionally, the controller 108 may be configured to control the operation of the heater 104, for example, to control a voltage applied to the heater 104 from the power source 105. The controller 108 may be configured to toggle the supply of power to the heater 104 between an on state, in which the full output voltage of the power supply 105 is applied to the heater 104, and an off state, in which no voltage is applied to the heater 104. In one example, the controller 108 may be configured to deactivate the heater 104 when the device 101 is operating in both the locked and standby modes of operation.

[0098]

[0106] Although not shown, the system 100 may also include a voltage regulator for regulating the output voltage from the power supply 105 to form a regulated voltage. The regulated voltage may then be applied to the heater 104. In some embodiments, the voltage regulator may apply the regulated voltage to the heater 104 to enable activation of the heater 104. Additionally, the voltage regulator may cut off the supply of voltage to the heater 104 when the device 101 is operating in the locked and standby modes of operation.

[0099]

[0107] In addition to being connected to the heater 104, the controller 108 is operatively connected to the UI 107. Thus, the controller 108 can receive input signals from the input means of the UI 107. Similarly, the controller 108 can transmit output signals to the UI 107. In response, the output means of the UI 107 can communicate information to a user based on the output signal. The controller also includes a memory 109, which is a non-volatile memory. The memory 109 includes instructions that, when executed, cause the controller 108 to perform certain tasks or steps of a method. The memory is also configured to store predetermined user selections, which can be overwritten by further updated user selections received at the user interface 107.

[0100]

[0108] Additionally, the system 100 may include a detector or sensor 110 coupled to the controller 108 in the device 101. The sensor 110 may be a microswitch, a puff sensor, a pressure sensor, a motion sensor, or any other similar sensor mounted in the device 101. The sensor 110 may be configured to detect at least one of predetermined conditions including (i) depletion of the consumable 102, e.g., complete consumption of the consumable 102, (ii) removal of the consumable 102 from the device 101, (iii) retraction of the cap of the device 101, and (iv) activation of the heater 104 or the passage of a predetermined period of time since the last puff taken, thereby deactivating the heater 104.

[0101]

[0109] Figure 1B is a schematic diagram illustrating a variation of the system 100 of Figure 1A. In the system 100' of Figure 1B, the heater 104 forms part of the device 101 rather than the consumable 102. In this variation, the heater 104 is electrically connected to a power source 105.

[0102]

[0110] Figures 2A and 2B show a heated tobacco (HT) smoking substitute system 200. The system 200 is an example of the system 100, 100' described in relation to Figures 1A or 1B. The system 200 includes an HT device 201 and an HT consumable 202. The description of Figures 1A and 1B above is also applicable to the system 200 of Figures 2A and 2B and therefore will not be repeated.

[0103]

[0111] The device 201 and the consumable 202 are configured such that the consumable 202 can be engaged with the device 201. Figure 2A shows the device 201 and the consumable 202 in an engaged state, and Figure 2B shows the device 201 and the consumable 202 in a detached state.

[0104]

[0112] The device 201 includes a body 209 and a cap 210. In use, the cap 210 is engaged at an end of the body 209. Although not apparent from these views, the cap 210 is movable relative to the body 209. In particular, the cap 210 is slidable and can slide along the longitudinal axis of the body 209.

[0105]

[0113] The device 201 includes output means (forming part of the UI of the device 201) in the form of a plurality of light emitting diodes (LEDs) 211 arranged linearly on an outer surface of the body 209 of the device 201 along a longitudinal axis of the device 201. A button 212 is also arranged on the outer surface of the body 209 of the device 201 and is spaced axially (i.e. along the longitudinal axis) from the plurality of LEDs 211.

[0106]

[0114] 2C shows a detailed cross-sectional view of the consumable 202 of the system 200. The consumable 202 generally resembles a cigarette. In that respect, 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 can further include a cooling element. The cooling element can exchange heat with the vapor formed by the aerosol-forming substrate 213 to cool the vapor to facilitate condensation of the vapor.

[0107]

[0115] The aerosol-forming substrate 213 is substantially cylindrical, is located at the upstream end 217 of the consumable 202, and comprises the aerosol former of the system 200. At that point, the aerosol-forming substrate 213 is configured to be heated by the device 201 to emit a vapor. The emitted vapor is then entrained in an airflow passing through the aerosol-forming substrate 213. The airflow is created by the action of a user inhaling at the downstream end 218 (i.e., the distal or oral end) of the consumable 202.

[0108]

[0116] In this embodiment, the aerosol-forming substrate 213 includes a tobacco material, which may include, for example, any suitable part of a tobacco plant (e.g., leaves, stems, roots, husks, seeds, and flowers). The tobacco may include one or more of leaf tobacco, stem tobacco, tobacco powder, tobacco dust, tobacco derivatives, expanded tobacco, homogenized tobacco, cut tobacco, extruded tobacco, cut rag tobacco, and / or reconstituted tobacco (e.g., slurry recon or paper recon). For example, the aerosol-forming substrate 213 may include a collecting sheet of homogenous (e.g., paper / slurry recon) tobacco, or collecting strips / strips formed from such a sheet.

[0109]

[0117] To generate an aerosol, the aerosol-forming substrate 213 includes at least one volatile compound that is intended to be evaporated / aerosolized and that, when inhaled, can provide a recreational and / or medicinal effect to the user. The aerosol-forming substrate 213 can further include one or more additives. For example, such additives can be in the form of humectants (e.g., propylene glycol and / or vegetable glycerin), flavorings, fillers, aqueous / non-aqueous solvents, and / or binders.

[0110]

[0118] The terminal 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 terminal filter element 214 is in the form of a hollow filter element with holes 219 (e.g. for air flow) formed therein. The holes 219 have a diameter of 2 mm. The terminal filter element 214 is formed from a porous (e.g. monoacetate) filter material. As mentioned above, the downstream end 218 of the consumable 202 (i.e. where the terminal filter 214 is located) forms the mouthpiece portion of the consumable 202 into which the user inhales. Airflow is drawn from the upstream end 217, through the components of the consumable 202, and out the downstream end 218. The airflow is driven by the user inhaling at the downstream end 218 (i.e. the mouthpiece portion) of the consumable 202.

[0111]

[0119] The upstream filter element 215 is located axially adjacent to the aerosol-forming substrate 213, between the aerosol-forming substrate 213 and the terminal filter element 214. Like the terminal filter 214, the upstream filter element 215 is in the form of a hollow filter element, with holes 220 extending axially therethrough. In this manner, the upstream filter 215 can act as an airflow restrictor. The upstream filter element 215 is formed from a porous (e.g., monoacetate) filter material. The holes 220 of the upstream filter element 215 have a larger diameter (3 mm) than the terminal filter element 214.

[0112]

[0120] Spacer 216 is in the form of a paper tube and defines a cavity or chamber between upstream filter element 215 and terminal filter element 214. Spacer 216 acts to allow both cooling and mixing of the vapor / aerosol from aerosol-forming substrate 213. The spacer has an outer diameter of 7 mm and an axial length of 14 mm.

[0113]

[0121] Although it is not apparent from these figures, the aerosol-forming substrate 213, the upstream filter 215, and the spacer 216 are circumscribed by a paper wrap layer. The terminal filter 214 is circumscribed by a tip layer, which also circumscribes a portion of the paper wrap layer (to connect the terminal filter 214 to the remaining components of the consumable 202). The upstream filter 215 and the terminal filter 214 are circumscribed by a further wrap layer in the form of a plug wrap.

[0114]

[0122] Referring again now to the device 201, FIG. 2D shows a detailed view of an end of the device 201 configured to engage the consumable 202. The cap 210 of the device 201 includes an opening 221 to an internal cavity 222 defined by the cap 210 (as is more evident from FIG. 2D). The opening 221 and the cavity 222 are formed to receive at least a portion of the consumable 202. When the consumable 202 is engaged with the device 201, a portion of the consumable 202 is received through the opening 221 and into the cavity 222. After engagement (see FIG. 2B), the downstream end 218 of the consumable 202 protrudes from the opening 221 and thus from the device 201. The opening 221 includes laterally disposed notches 226. When the consumable 202 is received in the opening 221, these notches 226 remain open and can be used, for example, to hold a cover to cover the end of the device 201.

[0115]

[0123] 2E shows a cross-sectional view of a central longitudinal plane through the device 201. The device 201 is shown with a consumable 202 engaged.

[0116]

[0124] The device 201 includes a heater 204, which includes a heating element 223. The heater 204 forms part of the body 209 of the device 201 and is rigidly attached to the body 209. In the embodiment shown, the heater 204 is a rod heater and the heating element 223 has a circular transverse profile. In other embodiments, the heater may be in the form of a blade heater (e.g., a heating element having a rectangular transverse profile) or a tubular heater (e.g., a heating element having a tubular shape).

[0117]

[0125] The heating element 223 of the heater 204 protrudes from the interior base of the cavity 222 along the longitudinal axis towards the opening 221. As is evident from this view, the length of the heating element (i.e., the length along the longitudinal axis) is less than the depth of the cavity 222. In this manner, the heating element 223 does not protrude from or extend beyond the opening 221.

[0118]

[0126] When the consumable 202 is received in the cavity 222 (as shown in FIG. 2E ), the heating element 223 penetrates the aerosol-forming substrate 213 of the consumable 202. In particular, when inserted, the heating element 223 extends across substantially the entire axial length of the aerosol-forming substrate 213. Thus, when the heater 204 is activated, heat is transferred radially from the outer circumferential surface of the heating element 223 to the aerosol-forming substrate 213.

[0119]

[0127] The device 201 further includes an electronics cavity 224. Located in the electronics cavity 224 is a power source in the form of a rechargeable battery 205 (a lithium ion battery).

[0120]

[0128] The device 201 includes a connector (i.e., forming part of the IO module of the device 201) in the form of a USB port 206. For example, the connector may alternatively be, for example, a micro USB port or a USB-C port. The USB port 206 may be used to recharge the rechargeable battery 205.

[0121]

[0129] The device 201 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 to the microcontroller).

[0122]

[0130] The controller 208 is configured to control at least one function of the device 201. For example, the controller 208 is configured to control the operation of the heater 204. Such control of the operation of the heater 204 may be achieved by the controller toggling an electrical connection of the rechargeable battery 205 to the heater 204. For example, the controller 208 is configured to control the heater 204 in response to a user pressing a button 212. Pressing the button 212 may cause the controller to enable a voltage (from the rechargeable battery 205) to be applied to the heater 204 (heating the heating element 223).

[0123]

[0131] In one aspect, the controller 208 is configured to selectively enter a locked mode of operation or a standby mode of operation based on a user selection received at the user interface, and further configured to activate the heater when the controller 208 receives at the user interface: i) a first predetermined user input when the device enters the locked mode of operation, or ii) a second predetermined user input different from the first predetermined user input when the device enters the standby mode of operation.

[0124]

[0132] In the embodiment shown, the controller 208 is configured to deactivate the heater 204 upon detecting the occurrence of a predetermined event via a detector or sensor, and to place the device 201 into a locked or standby mode of operation based on a predetermined user selection stored in the memory of the device 201.

[0125]

[0133] The predetermined event corresponds to the end of a user session or a smoking session. In the illustrated embodiment, the predetermined event is any one of: i) depletion of the consumable 202, ii) removal of the consumable 202 from the device 201, iii) retraction of the cap 210 of the device 201, and iv) the passage of a predetermined period of time since activation of the heater 204. Upon detecting the occurrence of the predetermined event, the controller 208 is configured to automatically deactivate the heater 204.

[0126]

[0134] It should be understood that some of the predetermined events may in some way cause physical damage to the device 201. For example, if the consumable 202 is removed while the heater 204 is still active or energized, the heater 204 may overheat, which may result in damage to the heater 204 or other components physically connected to the heater 204. Similarly, retraction of the cap 210 of the device 201 and activation of the heater 204 beyond a predetermined (i.e., long) period of time may cause the heater 204 to overheat.

[0127]

[0135] The predetermined user selection is a user selection received prior to activation of the heater 204 and thereby stored in memory. Thus, upon detecting the occurrence of a predetermined event, the controller 208 is configured to retrieve the predetermined user selection from memory and, upon deactivating the heater 204, enter one of a locked or standby operating mode based on said predetermined user selection.

[0128]

[0136] Such pre-defined user selections stored in the memory of the device 201 may be overwritten after the user inputs a new user selection at the user interface 212. For example, the user may select a standby mode of operation as the default mode of operation, such that the device 201 enters the standby mode of operation whenever the heater 204 is deactivated. The user may optionally select a locked mode of operation, thereby overwriting a previous user selection, if desired.

[0129]

[0137] In the illustrated embodiment, the device 201 further includes a detector or sensor 110 configured to detect the occurrence of one or more of the predetermined events when the heater 204 is activated. In one example, the sensor 110 may be a pressure sensor (e.g., based on a difference occurring within the cavity 222 of the device 201) or a microswitch configured to detect movement of the consumable 202 and / or the cap 210 relative to the device 201, such as removal of the consumable 202 from the device 201 and / or retraction of the cap 210 of the device 201. In another example, the sensor 110 is a timer provided in the controller 208 configured to determine the elapsed time since activation of the heater 204 or the last puff made, or a puff sensor configured to detect the number of puffs made out of the possible number of puffs on the consumable 202. The sensor 110 is configured to provide this information to the controller 208. The controller 208 is configured to detect the occurrence of one or more of the predetermined events based on said information.

[0130]

[0138] In other embodiments, upon receiving a user selection at the user interface, the controller 208 may be configured to deactivate the heater 204 and place the device 201 into a locked or standby mode of operation. More specifically, a user selection may be received when the heater 204 is activated, for example, during a user session. That is, a user selection received during a user session may deactivate the heater 204, for example, a session may not terminate upon detecting the occurrence of a predetermined event, but may terminate based on receiving a user selection. Additionally, a user selection received during activation of the heater may overwrite a predetermined user selection stored in the device memory.

[0131]

[0139] In the embodiment shown, the user selection includes a different selection input for each of the locked and standby modes of operation. The selection input for entering the locked mode of operation is accomplished by holding a user press on the user interface 212 for at least two seconds, and the selection input for entering the standby mode of operation is accomplished by multiple shorter user presses on the user interface, each lasting less than one second. The selection inputs can be entered at the user interface before or during activation of the heater during a session.

[0132]

[0140] In the illustrated embodiment, the first predefined user input includes multiple user presses on a user interface and the second predefined user input includes one or more user presses on a user interface, the number of user presses in the second predefined user input being less than the number of user presses in the first predefined input. The user interface is a button 212. A user press is a physical press of the button 212 within a predefined period of time, e.g., 3 seconds or less. In this example, the number of user presses in the first predefined sequence is 5.

[0133]

[0141] In other embodiments, the first predefined user input may include at least one of a user password and a fingerprint input received at the interface 212. The first predefined user input may be a password or code entered at a keyboard or keypad. The first predefined user input may be a fingerprint identifiable by a fingerprint recognizer. The user input provides an additional layer of protection to the device 201 because when the device 201 enters a locked mode of operation, a minor or unauthorized person other than the owner of the device 201 cannot activate the heater 204 without knowledge of the predefined user input.

[0134]

[0142] The locked mode of operation may be defined as a child-resistant mechanism CSM, where the device 201 remains in an active state, but the heater 204 of the device 201 is disabled to prevent children from using the device. The controller 208 is also configured to control the LEDs 211 in response to (e.g., detection of) the state of the device 201 or the consumable 202. For example, the controller may control the LEDs to indicate whether the device 201 is in an on state or an off state (e.g., when the device is in an on state, one or more of the LEDs may be illuminated by the controller). In addition, the controller 208 may control the LEDs to indicate that the device 201 has entered either one of the locked mode of operation or the standby mode of operation. In other embodiments, the device 201 may further include other output means, such as a tactile sensor, an audio sensor, etc., to provide tactile / audio feedback indicating that the device 201 has entered either one of the locked mode of operation or the standby mode of operation.

[0135]

[0143] The device 201 includes a further input means (i.e., in addition to the button 212) in the form of a puff sensor 225. The puff sensor 225 is configured to detect when a user draws (i.e., inhales) on the downstream end 218 of the consumable 202. The puff sensor 225 may be in the form of a pressure sensor, a flow meter, or a microphone, for example. The puff sensor 225 is operatively connected to the controller 208 within the electronics cavity 224 such that a signal from the puff sensor 225 indicative of a puff state (i.e., inhalation or not inhalation) forms an input to (and may therefore be responded to by) the controller 208.

[0136]

[0144] FIG. 3 illustrates a flow diagram of a method for switching a device between an active and an inactive mode of operation.

[0137]

[0145] 3, the method 300 includes one or more blocks that are performed by the controller 208 of the device 201. The method 300 may be described in the general context of controller-executable instructions. Generally, controller-executable instructions may include routines, programs, objects, components, data structures, procedures, modules, and functions that perform particular functions or implement particular abstract data types.

[0138]

[0146] The order in which method 300 is described is not intended to be construed as a limitation, as any number of the described method blocks may be combined in any order to implement method 300. Additionally, individual blocks may be deleted from method 300 without departing from the scope of the subject matter described herein. Further, method 300 may be implemented in any suitable hardware, software, firmware, or combination thereof.

[0139]

[0147] The method 300 includes the steps of deactivating the heater 204 in an activated state, placing the device 201 in one of two operating modes, and, upon receiving a different predefined user input, reactivating the heater 204 according to the operating mode the device is in.

[0140]

[0148] At block 301, the controller 208 is configured to receive a user selection. The user selection is input at the user interface 212 and serves as an instruction to select between placing the device 201 in a locked mode of operation and a standby mode of operation when the heater 204 is deactivated. The user selection includes different selection inputs to place the device 201 in each of the locked and standby modes of operation.

[0141]

[0149] In the embodiment shown, the user selection is a predefined user selection entered by a user at the user interface 212 prior to activation of the heater 204 and stored in memory. Upon detecting the occurrence of a predefined event by a detector or sensor, the controller 208 is configured to deactivate the heater 204 at block 302. As discussed above, the predefined events include one or more of (i) depletion or exhaustion of the consumable 202, (ii) removal of the consumable 202 from the device 201, (iii) retraction of the cap 209 from the device 201, and (iv) the passage of a predefined period of time since activation of the heater 204 or the last puff taken.

[0142]

[0150] In other embodiments, the controller 208 can receive a user selection when the heater 204 is to be activated, and upon receiving the user selection, the heater 204 can be deactivated.

[0143]

[0151] Based on the user selection, the controller 208 is configured to place the device 201 into a locked mode of operation 303 or a standby mode of operation 304. The two modes of operation differ from one another as they each require the user to enter a specific pre-defined user input at the user interface 212 in order to activate the heater 204.

[0144]

[0152] When the device 201 is in the locked mode of operation 303, the controller 208 activates (307) the heater 204 only when a first predetermined user input is received (305) at the user interface 212. In the locked mode of operation 303, when the controller 208 detects a second predetermined user input or any other user input at the user interface 212 other than the first predetermined user input, the controller 208 is configured to maintain (309) the heater 204 in an inactive state.

[0145]

[0153] On the other hand, when the device 201 is in a standby mode of operation 304, the controller 208 activates (307) the heater 204 only when a second predetermined user input is received (306) at the user interface 212. In said standby mode of operation 304, when the controller 208 detects any other user input at the user interface 212 other than the first predetermined user input or the second predetermined user input, the controller 208 may be configured to maintain (309) the heater 204 in an inactive state. However, in some embodiments, if the second predetermined user input forms part of the first predetermined user input, for example if the second predetermined user input includes a single user press and the first predetermined user input includes multiple user presses, the controller 208 may nevertheless activate the heater when the first predetermined user input is received.

[0146]

[0154] While the present invention has been described in conjunction with the exemplary embodiments set forth above, many equivalent modifications and variations will be apparent to those skilled in the art given this disclosure. Accordingly, the exemplary embodiments of the invention set forth above are considered to be illustrative rather than limiting. Various changes may be made to the described embodiments without departing from the spirit and scope of the invention.

[0147]

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

[0148]

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

[0149]

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

[0150]

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

[0151]

[0159] The words "preferred" and "preferably" are used herein to refer to embodiments of the invention that may provide certain benefits, under some circumstances. It is to be understood, however, that other embodiments may also be preferred, under the same or different circumstances. Thus, reference to one or more preferred embodiments does not mean or imply that other embodiments are not useful, nor is it intended to exclude other embodiments from the scope of the disclosure or the claims.

Claims

1. A controller; A heater; a user interface; the controller is configured to selectively enter a locked mode of operation or a standby mode of operation based on a user selection received at the user interface, whereby the heater is deactivated in both modes of operation; the controller is further configured to activate the heater upon receiving, at the user interface, i) a first predefined user input when the device enters the locked mode of operation, or ii) a second predefined user input, different from the first predefined user input, when the device enters the standby mode of operation. Non-combustion heating device.

2. 2. The non-combustion heating device of claim 1, wherein the user selection includes a predetermined user selection, and the controller is configured to deactivate the heater and place the device in the locked mode of operation or the standby mode of operation when it detects the occurrence of a predetermined event.

3. 3. The non-combustion heated device of claim 2, wherein the predetermined events include one or more of: i) depletion of the consumable; ii) removal of the consumable from the device; iii) retraction of a cap on the device; and iv) activation of a heater or passage of a predetermined period of time since the last puff taken.

4. The non-combustion heating device of claim 1 , wherein the controller is configured to deactivate the heater and place the device in the locked mode of operation or the standby mode of operation when the user selection is received at the user interface.

5. 5. The non-combustion heating device of claim 1, wherein the user selection includes different selection inputs for placing the device into respective locked and standby modes of operation, respectively.

6. 6. The non-combustion heating device of claim 1, wherein the first predetermined user input includes a plurality of user presses on the user interface, and the second predetermined user input includes one or more user presses on the user interface, and the number of user presses in the second predetermined user input is less than the number of user presses in the first predetermined input.

7. The non-combustion heating device of claim 1 , wherein the first predetermined user input comprises at least one of a user password and a fingerprint input received at the interface.

8. The non-combustion heating device of claim 1 , wherein the second predetermined user input comprises a single user press on the user interface.

9. i) a non-combustion heating device according to any one of claims 1 to 8; ii) an aerosol-forming article; and A smoking substitution system including.

10. A method of operating a non-combustion heating device according to any one of claims 1 to 8, comprising the steps of: i) receiving said user selection; ii) entering said locked mode of operation or said standby mode of operation based on said user selection; and and iii) activating the heater when the first predetermined user input is received when the device enters the locked mode of operation, or when the second predetermined user input is received when the device enters the standby mode of operation.

11. i) detecting the occurrence of said predetermined event; ii) deactivating the heater to place the device in the locked mode or in the standby mode of operation; The method of claim 10 further comprising:

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