CA3196507A1

CA3196507A1 - Refilling device

Info

Publication number: CA3196507A1
Application number: CA3196507A
Authority: CA
Inventors: My-Linh TRAN; Robert KERSEY; Stephen Potter
Original assignee: Nicoventures Trading Ltd
Current assignee: Nicoventures Trading Ltd
Priority date: 2020-10-22
Filing date: 2021-10-14
Publication date: 2022-04-28
Also published as: EP4203721A1; GB202016761D0; MX2023004702A; US20230404146A1; WO2022084650A1

Abstract

A refilling device for an article of an aerosol provision system comprises refilling control circuitry. The refilling control circuitry is configured to facilitates the transfer of aerosol-generating material from a reservoir to the article when the article is coupled to the refilling device. The refilling control circuitry causes a value of a counter stored on the reservoir to be updated in response to the transfer of the aerosol-generating material. The value of the counter is indicative of the amount of an aerosol generating material in the reservoir.

Description

REFILLING DEVICE
TECHNICAL FIELD
The present invention relates to a refilling device for an article of an aerosol provision system, a method of refilling an article of an aerosol provision system and a reservoir.
BACKGROUND
Electronic aerosol provision systems such as electronic cigarettes (e-cigarettes) generally contain an aerosol-generating material, such as a reservoir of a source liquid containing a formulation, typically including nicotine, or a solid material such as a tobacco-based product, from which an aerosol is generated for inhalation by a user, for example through heat vaporisation. Thus, an aerosol provision system will typically comprise an aerosol generator, e.g. a heating element, arranged to aerosolise a portion of aerosol-generating material to generate an aerosol in an aerosol generation region of an air channel through the aerosol provision system. As a user inhales on the device and electrical power is supplied to the aerosol generator, air is drawn into the device through one or more inlet holes and along the air channel to the aerosol generation region, where the air mixes with the vaporised aerosol generator and forms a condensation aerosol. The air drawn through the aerosol generation region continues along the air channel to a mouthpiece, carrying some of the aerosol with it, and out through the mouthpiece for inhalation by the user.
It is common for aerosol provision systems to comprise a modular assembly, often having two main functional parts, namely an aerosol provision device and an article.
Typically the article will comprise the consumable aerosol-generating material and the aerosol generator (heating element), while the aerosol provision device part will comprise longer-life items, such as a rechargeable battery, device control circuitry and user interface features. The aerosol provision device may also be referred to as a reusable part or battery section and the article may also be referred to as a consumable, disposable/replaceable part, cartridge or cartomiser.
The aerosol provision device and article are mechanically coupled together at an interface for use, for example using a screw thread, bayonet, latched or friction fit fixing.
VVhen the aerosol-generating material in an article has been exhausted, or the user wishes to switch to a different article having a different aerosol-generating material, the article may be removed from the aerosol provision device and a replacement article may be attached to the device in its place. Alternatively, some articles are configured such that, after the aerosol-generating material in the article has been exhausted, the article can be refilled with more aerosol-generating material, thereby allowing the article to be reused.
In this example, the user is able to refill the article using a separate reservoir of aerosol-generating material.

2 The aerosol-generating material used to refill the article may be the same or different to the previous aerosol-generating material in the article, thereby allowing the user to change to a different aerosol-generating material without purchasing a new article.
The article is refilled using a refilling device and a reservoir of aerosol-generating material. In some cases, the capacity of the reservoir corresponds to the capacity of the article, such that all of the aerosol-generating material can be transferred from a reservoir to the article in order to refill the article. This may not be the case, however, so it can be difficult to determine how much aerosol-generating material has been transferred from a reservoir to the article, and how much aerosol-generating material remains in the article and/or the reservoir. This could lead to reservoirs being discarded when they still have aerosol-generating material remaining in them, or the user not being able to refill the article as the reservoir has run out of aerosol-generating material unexpectedly.
Various approaches are described herein which seek to help address or mitigate some of the issues discussed above.
SUMMARY
The disclosure is defined in the appended claims.
In accordance with some embodiments described herein, there is provided a refilling device for an article of an aerosol provision system comprising refilling control circuitry. The refilling control circuitry is configured to facilitate the transfer of aerosol-generating material from a reservoir to the article when the article is coupled to the refilling device. The refilling control circuitry causes a value of a counter stored on the reservoir to be updated in response to the transfer of the aerosol-generating material. The value of the counter is indicative of the amount of an aerosol generating material in the reservoir.
The refilling control circuitry may be further configured to determine if the reservoir is expired based the updated value of the counter and write data to the computer-readable memory indicating that the reservoir is expired in response to determining that the reservoir is expired. The refilling control circuitry may be further configured to determine, in response to the reservoir being received by the refilling device, whether the reservoir is expired, and prevent the transfer of aerosol-generating material from the reservoir to the article in response to the determining that the reservoir is expired. In each case, the refilling control circuitry may be further configured to provide a notification to a user of the refilling device in response to determining that reservoir is expired.
The refilling control circuitry may be further configured to determine, in response to the reservoir being received by the refilling device, whether the reservoir is authentic, and prevent the transfer of aerosol-generating material from the reservoir to the article in response to the determining that the reservoir is not authentic. The refilling control circuitry

3 may also be configured to provide a notification to a user of the refilling device in response to determining that reservoir is not authentic.
The transfer of aerosol-generating material may be based on the value of the counter.
The refilling control circuitry may be further configured to send the value of the counter to a remote data store.
The refilling device may comprise a plurality of reservoir interfaces, and the refilling control circuitry configured to receive, from a user of the refilling device, a selection of one or more reservoir interfaces, and selectively facilitate the transfer of aerosol-generating material, from each reservoir connected to one of the one or more selected reservoir interfaces, to the article when the article is coupled to the refilling device.
The refilling control circuitry may be further configured to read, from the article, data indicative of an amount of aerosol-generating material stored in the article.
The transfer of aerosol-generating material may be based on the data indicative of an amount of aerosol-generating material stored in the article. The refilling control circuitry may be configured to send the data indicative of the amount of aerosol-generating material stored in the article to a remote data store. The refilling control circuitry may be further configured to provide a notification to a user of the refilling device based on the data indicative of the amount of aerosol-generating material stored in the article.
The refilling control circuitry may be configured to provide a notification to a user of the refilling device based on the value of the counter. The notification may provide an indication of an amount of aerosol-generating material that can be transferred from the reservoir before the reservoir expires. The notification may be provided on the refilling device and/or an application on a remote device.
In accordance with some embodiments described herein, there is provided a method of refilling an article of an aerosol provision system. The method comprises facilitating the transfer of aerosol-generating material from a reservoir to the article when the article is coupled to the refilling device, and causing a value of a counter stored on the reservoir to be updated in response to the transfer of the aerosol generating material, wherein the value of the counter indicative of the amount of an aerosol generating material in the reservoir.
There is also provided a computer readable storage medium comprising instructions which, when executed by a processor, performs the above method.
In accordance with some embodiments described herein, there is provided a reservoir configured to store aerosol-generating material. The reservoir comprises reservoir control circuitry configured to store a value of a counter indicative of the amount of an aerosol generating material in the reservoir.

4 These aspects and other aspects will be apparent from the following detailed description. In this regard, particular sections of the description are not to be read in isolation from other sections.
BRIEF DESCRIPTION OF DRAWINGS
Embodiments of the invention will now be described, by way of example only, with reference to accompanying drawings, in which:
Figure 1 is a schematic diagram of an aerosol provision system;
Figure 2 is a schematic diagram of an example article for use in the aerosol provision system illustrated in Figure 1;
Figure 3 is a schematic diagram of an example refilling device and a reservoir for refilling the article illustrated in Figure 2;
Figure 4 is a schematic diagram of a system including the refilling device;
Figure 5 is a flow chart of a method of refilling an article of an aerosol provision system;
Figure 6 is a flow chart of a method of refilling an article of an aerosol provision system.
DETAILED DESCRIPTION
Aspects and features of certain examples and embodiments are discussed/described herein. Some aspects and features of certain examples and embodiments may be implemented conventionally and these are not discussed/described in detail in the interests of brevity. It will thus be appreciated that aspects and features of articles and systems discussed herein which are not described in detail may be implemented in accordance with any conventional techniques for implementing such aspects and features.
The present disclosure relates to aerosol provision systems, which may also be referred to as aerosol provision systems, such as e-cigarettes. Throughout the following description the term "e-cigarette" or "electronic cigarette" may sometimes be used, but it will be appreciated this term may be used interchangeably with aerosol provision system and electronic aerosol provision system.
As noted above, aerosol provision systems (e-cigarettes) often comprise a modular assembly including both a reusable part (aerosol provision device) and a replaceable (disposable) or refillable cartridge part, referred to as an article. Systems conforming to this type of two-part modular configuration may generally be referred to as two-part systems or devices. It is also common for electronic cigarettes to have a generally elongate shape. For the sake of providing a concrete example, certain embodiments of the disclosure described herein comprise this kind of generally elongate two-part system employing refillable cartridges. However, it will be appreciated the underlying principles described herein may equally be adopted for other electronic cigarette configurations, for example modular systems comprising more than two parts, as devices conforming to other overall shapes, for example based on so-called box-mod high performance devices that typically have a more

5 boxy shape.
As described above, the present disclosure relates to (but it not limited to) refilling devices for articles of aerosol provision systems, such as e-cigarettes and electronic cigarettes.
Figure 1 is a highly schematic diagram (not to scale) of an example aerosol provision system 10, such as an e-cigarette, to which embodiments are applicable. The aerosol provision system 10 has a generally cylindrical shape, extending along a longitudinal or y axis as indicated by the axes (although aspects of the invention are applicable to e-cigarettes configured in other shapes and arrangements), and comprises two main components, namely an aerosol provision device 20 and an article 30.
The article 30 comprises or consists of aerosol-generating material 32, part or all of which is intended to be consumed during use by a user. An article 30 may comprise one or more other components, such as an aerosol-generating material storage area 39, an aerosol-generating material transfer component 37, an aerosol generation area, a housing, a wrapper, a mouthpiece 35, a filter and/or an aerosol-modifying agent.
An article 30 may also comprise an aerosol generator 36, such as a heating element, that emits heat to cause the aerosol-generating material 32 to generate aerosol in use. The aerosol generator 36 may, for example, comprise combustible material, a material heatable by electrical conduction, or a susceptor. It should be noted that it is possible for the aerosol generator 36 to be part of the aerosol provision device 20 and the article 30 then may comprise the aerosol-generating material storage area 39 for the aerosol-generating material 32 such that, when the article 30 is coupled with the aerosol provision device 20, the aerosol-generating material 32 can be transferred to the aerosol generator 36 in the aerosol provision device 20.
Aerosol-generating material is a material that is capable of generating aerosol, for example when heated, irradiated or energized in any other way. The aerosol-generating material 32 may, for example, be in the form of a solid, liquid or gel which may or may not contain an active substance and/or flavourants. In some embodiments, the aerosol-generating material 32 may comprise an "amorphous solid", which may alternatively be referred to as a "monolithic solid" (i.e. non-fibrous). In some embodiments, the amorphous solid may be a dried gel. The amorphous solid is a solid material that may retain some fluid, such as liquid, within it. In some embodiments, the aerosol-generating material 32 may for

6 example comprise from about 50wt%, 60wt% or 70wt% of amorphous solid, to about 90wt%, 95wt% or 100wt /0 of amorphous solid.
The aerosol-generating material comprises one or more ingredients, such as one or more active substances and/or flavourants, one or more aerosol-former materials, and optionally one or more other functional materials such as pH regulators, colouring agents, preservatives, binders, fillers, stabilizers, and/or antioxidants.
The active substance as used herein may be a physiologically active material, which is a material intended to achieve or enhance a physiological response. The active substance may for example be selected from nutraceuticals, nootropics, and psychoactives.
The active substance may be naturally occurring or synthetically obtained. The active substance may comprise for example nicotine, caffeine, taurine, theine, vitamins such as B6 or B12 or C, melatonin, cannabinoids, or constituents, derivatives, or combinations thereof.
The active substance may comprise one or more constituents, derivatives or extracts of tobacco, cannabis or another botanical.
In some embodiments, the active substance comprises nicotine. In some embodiments, the active substance comprises caffeine, melatonin or vitamin B12.
The aerosol provision device 20 includes a power source 14, such as a battery, configured to supply electrical power to the aerosol generator 36. The power source 14 in this example is rechargeable and may be of a conventional type, for example of the kind normally used in electronic cigarettes and other applications requiring provision of relatively high currents over relatively short periods. The battery 14 may be recharged through the charging port (not illustrated), which may, for example, comprise a USB
connector.
The aerosol provision device 20 includes device control circuitry 28 configured to control the operation of the aerosol provision system 10 and provide conventional operating functions in line with the established techniques for controlling aerosol provision systems such as electronic cigarettes. The device control circuitry (processor circuitry) 28 may be considered to logically comprise various sub-units/circuitry elements associated with different aspects of the electronic cigarette's operation. For example, depending on the functionality provided in different implementations, the device control circuitry 28 may comprise power source control circuitry for controlling the supply of electrical power from the power source 14 to the aerosol generator 36, user programming circuitry for establishing configuration settings (e.g. user-defined power settings) in response to user input, as well as other functional units/circuitry associated functionality in accordance with the principles described herein and conventional operating aspects of electronic cigarettes.
It will be appreciated the functionality of the device control circuitry 28 can be provided in various different ways, for example using one or more suitably programmed programmable

7 computer(s) and/or one or more suitably configured application-specific integrated circuit(s)/circuitry/chip(s)/chipset(s) configured to provide the desired functionality.
The aerosol provision device 20 includes one or more air inlets 21. In use, as a user inhales on the mouthpiece 35, air is drawn into the aerosol provision device 20 through the air inlets 21 and along an air channel 23 to the aerosol generator 36, where the air mixes with the vaporised aerosol-generating material 32 and forms a condensation aerosol. The air drawn through the aerosol generator 36 continues along the air channel 23 to a mouthpiece 35, carrying some of the aerosol with it, and out through the mouthpiece 35 for inhalation by the user. Alternatively, the one or more air inlets 21 may be included on the article 30, such that the air channel 23 is entirely contained within the article 30.
By way of a concrete example, the article 30 comprises a housing (formed, e.g., from a plastics material), an aerosol-generating material storage area 39 formed within the housing for containing the aerosol-generating material 32 (which in this example may be a liquid which may or may not contain nicotine), an aerosol-generating material transfer component 37 (which in this example is a wick formed of e.g., glass or cotton fibres, or a ceramic material configured to transport the liquid from the reservoir using capillary action), an aerosol-generating area containing the aerosol generator 36, and a mouthpiece 35.
Although not shown, a filter and/or aerosol modifying agent (such as a flavour imparting material) may be located in, or in proximity to, the mouthpiece 35. The aerosol generator 36 of this example comprises a heater element formed from an electrically resistive material (such as NiCr8020) spirally wrapped around the aerosol-generating material transfer component 37, and located in the air channel 23. The area around the heating element and wick combination is the aerosol-generating area of the article 30.
Figure 2 is a schematic diagram of an example article 30 for use in the aerosol provision system 10 illustrated in Figure 1, where the same reference signs have been used for like elements between the article 30 illustrated in Figure 1 and the article 30 illustrated in Figure 2. As per the article 30 illustrated in Figure 1, the article 30 illustrated in Figure 2 includes an aerosol-generating material storage area 39 for storing an aerosol-generating material 32, an aerosol-generating material transfer component 37, an aerosol generation area containing an aerosol generator 36, and a mouthpiece 35.
The article 30 illustrated in Figure 2 is configured to be refilled and reused. In other words, the aerosol-generating material storage area 39 of the article 30 illustrated in Figure 2 can be refilled with aerosol-generating material 32 once some or all of the aerosol-generating material 32 contained in the aerosol-generating material storage area 39 has been exhausted or depleted. To facilitate the refilling or replenishment of aerosol-generating material 32, the article 30 has a refilling tube 33 extending between the aerosol-generating material storage area 39 and the exterior or an outer surface of the housing of the article 30,

8 thereby creating a refilling orifice 34. Aerosol-generating material 32 can then be inserted into the aerosol-generating material storage area 39 via the refilling orifice 34 and refilling tube 33. It will be appreciated, however, that such a configuration of a refilling tube 33 and a refilling orifice 34 is not essential, and the article 30 may comprise any other suitable means of facilitating the refilling of the aerosol-generating material storage area 39 with aerosol generating material 32.
The refilling orifice 34 and/or the refilling tube 33 may be sealable, for example with a cap or one-way valve, in order to ensure that aerosol-generating material 32 does not leak out of the refilling orifice 34. Although the refilling orifice 34 is illustrated in Figure 2 as being on the same end or surface of the article 30 as the air channel 23 and interface with the aerosol provision device 20, this is not essential. The refilling orifice 34 may be located at the end of the article 30 comprising the mouthpiece 35, for example proximate to the outlet of the air channel 23 on the mouthpiece 35, such that the refilling tube 33 extends between the end of the article 30 comprising the mouthpiece 35 and the aerosol-generating material storage area 39. In this case, the article 30 does not necessarily need to be separated from the aerosol-generating device 20 in order to refill the article 30 with aerosol-generating material 32, as the refilling orifice 34 is not obstructed by the aerosol-generating device 20 when the article 30 is coupled with the aerosol provision device 20.
The article 30 illustrated in Figure 2 also comprises article control circuitry 38 configured to control the operation of the article 30 and store parameters and/for data associated with the article 30. The parameters associated with the article 30 may include, for example, a serial number and/or stock keeping unit (SKU) for the article 30 or other means of identifying the article 30 and/or the type of the article 30, a date of manufacture and/or expiry of the article 30, an indication of the number of times the article 30 has been refilled, the capacity of the aerosol-generating material storage area 39 and/or the amount of aerosol-generating material remaining in the aerosol-generating material storage area 39.
As described above in relation to the device control circuitry 28, the article control circuitry 38 can be provided in various different ways, for example using one or more suitably programmed programmable computer(s) and/or one or more suitably configured application-specific integrated circuit(s)/circuitry/chip(s)/chipset(s) configured to provide the desired functionality. For example, the article control circuitry 38 may comprise a microcontroller unit (MCU) or a system on chip (SoC).
The article 30 illustrated in Figure 2 also comprises one or more connectors 31, such as contact electrodes, connected via electrical wiring to the aerosol generator 36 and the article control circuitry 38. In use, the article 30 is coupled to the aerosol-generating device 20 and the connectors 31 mate with connectors on the aerosol-generating device, thereby

9 allowing electrical power and electrical current to be supplied from the battery 14 of the aerosol-generating device 20 to the aerosol generator 36 and the article control circuitry 38.
Figure 3 is a schematic diagram of a refilling device 40 for an article of an aerosol provision system, such as the article 30 illustrated in Figure 2, and a reservoir 50. The reservoir 50 is a disposable/replaceable part which contains aerosol-generating material 52.
The refilling device 40 facilitates the transfer of the aerosol-generating material 52 from the reservoir 50 to the article 30 in order to refill or replenish the aerosol-generating material storage area 39 of the article 30 with aerosol-generating material. The article 30 can then be reused as part of the aerosol provision system 10 described above, whilst the reservoir 50 can be disposed of when the aerosol-generating material 52 within the reservoir 50 has been depleted. This allows a single article 30 to be refilled using multiple reservoirs, thereby increasing the number of uses of a single article 30.
The refilling device 40 comprises an article interface 42 configured to receive the article 30. The article interface 42 may comprise a slot, tray, opening or aperture on the refilling device 40 into or onto which the article 30 is placed or coupled.
Alternatively the article interface 42 may comprise a lead or other cable which is attachable or otherwise connectable to the article 30. Although one article interface 42 is illustrated in Figure 3, the refilling device 40 may comprise more than one article interface 42, for example three, five or ten, depending on the specific design of the refilling device 40. In this case, two or more of the article interfaces 42 may be different such that the refilling device 40 is capable of receiving different types of article, or two or more of the article interfaces 42 may be the same such that the refilling device 40 is capable of receiving multiple articles of the same type.
The refilling device 40 also comprises one or more reservoir interfaces 46 configured to receive a reservoir 50. In the same fashion as described above in relation to the article interface 42, each of the reservoir interfaces 46 may comprise a slot, tray, opening or aperture on the refilling device 40 into or onto which the reservoir 50 is placed or coupled.
Alternatively, each reservoir interface 46 may comprise a lead or other cable which is attachable or otherwise connectable to the reservoir 50. Although two reservoir interfaces 46 are illustrated in Figure 3, this is not essential and the refilling device 40 may comprise fewer or more reservoir interfaces 46, for example one, three, five or ten, depending on the specific design of the refilling device 40.
The refilling device 40 also comprises refilling control circuitry 48 configured to control the operation of the refilling device 40. As described above in relation to the device control circuitry 28, the refilling control circuitry 48 can be provided in various different ways, for example using one or more suitably programmed programmable computer(s) and/or one or more suitably configured application-specific integrated circuit(s)/circuitry/chip(s)/chipset(s) configured to provide the desired functionality. For example, the refilling control circuitry 48 may comprise a microcontroller unit (MCU) or a system on chip (SoC).
Although not illustrated, the refilling device 40 may also comprise a power source, 5 such as a battery, configured to supply electrical power to the components of the refilling device 40. Alternatively, the power source may be an external power supply, such as a mains electricity supply or an external battery pack, to which the refilling device 40 can be coupled, attached or otherwise connected.
As described above, the reservoir 50 comprises aerosol-generating material 52 for

10 transferring, by the refilling device 40, to the article 30 in order to refill or replenish the aerosol-generating material 32 in the aerosol-generating material storage area 39 of the article 30.
The reservoir 50 illustrated in Figure 3 also comprises reservoir control circuitry 58 configured to control the reservoir 50 and store parameters and/or data associated with the reservoir 50. The parameters associated with the reservoir 50 may include, for example data indicative of an amount of aerosol-generating material 52 stored in the reservoir 50, data relating to the aerosol-generating material 52 stored in the reservoir 50, such as one or more ingredients, the concentration and/or amount of the ingredients and/or one or more flavourants within the aerosol-generating material 52. The data may also comprise an identifier, such as a serial number and/or SKU for the reservoir 50 or other means of identifying the reservoir 50 and/or the type of the reservoir 50, and a date of manufacture and/or expiry of the reservoir 50. As described above in relation to the device control circuitry 28, the reservoir control circuitry 58 can be provided in various different ways, for example using one or more suitably programmed programmable computer(s) and/or one or more suitably configured application-specific integrated circuit(s)/circuitry/chip(s)/chipset(s) configured to provide the desired functionality. For example, the reservoir control circuitry 58 may comprise a microcontroller unit (MCU) or a system on chip (SoC).
The refilling device 40 illustrated in Figure 3 also comprises one or more connectors 41, such as contact electrodes, connected via electrical wiring to the refilling control circuitry 48 and the power source (not illustrated). The connectors 41 are located proximate to or as part of the article interface 42. This facilitates communication between the refilling control circuitry 48 and the article control circuitry 38; the connectors 31 on the article 30 mate with the connectors 41 on the refilling device 40 when the article 30 is received by the article interface 42, thereby allowing power to be supplied from the refilling device 40 to the article control circuitry 38 and electrical signals to be transferred between the refilling control circuitry 48 and the article control circuitry 38. The connectors 41 may be arranged relative to the article interface 42 in a pattern and position matching/mirroring the connectors 31 on

11 the article 30 in order to facilitate the mating of the connectors 31 on the article 30 and the connectors 41 on the refilling device 40 when the article 30 is received by the article interface 42.
In the same fashion, the refilling device 40 illustrated in Figure 3 also comprises one or more connectors 47, such as contact electrodes, located proximate to or as part of each of the reservoir interfaces 46 and connected via electrical wiring to the refilling control circuitry 48 and the power source (not illustrated). The connectors 47 mate with the connectors 51 on the reservoir 50 when the reservoir 50 is received by the reservoir interface 46, thereby allowing power to be supplied from the refilling device 40 to the reservoir control circuitry 58 and electrical signals to be transferred between the refilling control circuitry 48 and the reservoir control circuitry 58. The connectors 47 may be arranged relative to the reservoir interface 46 in a pattern and position matching/mirroring the connectors 51 on the reservoir 50 in order to facilitate the mating of the connectors 51 on the reservoir 50 and the connectors 47 on the refilling device 40 when a reservoir 50 is received by one of the reservoir interfaces 46.
Although the connectors 31, 41, 47, 51 are described herein as physical electrical connectors between the article, the refilling device and the reservoir, in an alternative implementation one or more of the electrical connections between the respective components may be a wireless connection, such as NFC, RFID, or inductive coupling.
The refilling device 40 illustrated in Figure 3 also comprises a refilling outlet 44 located proximate to or as part of the article interface 42, a refilling inlet 45 located proximate to or as part of each of the reservoir interfaces 46, and a duct 43 connecting each refilling inlet 45 to the refilling outlet 44. The refilling outlet 44 is configured to mate with the refilling orifice 34 on the article 30 when the article is received by the article interface 42, and each refilling inlet 45 is configured to mate with a reservoir outlet 55 when a reservoir 50 is received by the corresponding reservoir interface 46. The duct 43 is configured to facilitate the transfer of aerosol-generating material 52 from each of the refilling inlets 45 to the refilling outlet 44, thereby providing a transfer path for aerosol-generating material 52 from the reservoir 50 through the refilling device 40 and into the article 30.
Although the refilling outlet 44 is illustrated in Figure 3 as being on the same end or surface of the article interface 42 as the connectors 41, this is not essential. The refilling outlet 44 may be located anywhere proximate to or in the article interface 42 relative to the connectors 41 in order for the refilling outlet 44 to mate with the refilling orifice 34 on the article 30 whilst the connectors 41 on the refilling device 40 mate with the connectors 31 on the article 30 when the article 30 is received by the article interface 30.
Similarly, the refilling inlet 45 may be located anywhere proximate to or in each reservoir interface 46 relative to the connectors 47 in order for the refilling inlet 45 to mate with the reservoir outlet 55 on the

12 reservoir 50 whilst the connectors 47 on the refilling device 40 mate with the connectors 51 on the reservoir 50 when a reservoir 50 is received by a reservoir interface 46.
Further, as described above, the refilling device 40 may be configured to receive different types, designs or configuration of article 30 using the same article interface 42. In this case, there may be multiple configurations of connectors 41 and/or refilling outlets 44 proximate to or in the article interface 42 in order to facilitate the same article interface 42 receiving different types, designs or configurations of article 30. Equally, there may be multiple configurations of connectors 47 and/or refilling inlets 45 proximate to or in each reservoir interface 46 in order to facilitate the same reservoir interface 46 receiving different types, designs or configurations of reservoir 50. Alternatively or in addition, the configuration of connectors 47 and/or refilling inlets 45 proximate to or in the one or more of the reservoir interfaces 46 may be different such that different reservoir types are received by different reservoir interfaces 46 of the same refilling device 40.
One or more of the refilling outlet 44, the refilling inlets 45, the reservoir outlet 55 and the duct 43 may also include a means of controlling the rate and/or direction of transfer of the aerosol-generating material 52, for example a ball valve, needle valve or diaphragm to control the rate of transfer and/or a one way valve such as a check valve or non-return valve to control the direction of transfer. For example, a one way valve may be located at or proximate to each of the refilling outlet 44, the refilling inlets 45 and the reservoir outlets 55 to ensure that aerosol-generating material 52 can only be transferred from the reservoir 50 to the refilling device 40 and from the refilling device 40 to the article 30, whilst a single ball valve or diaphragm may be located on or in the duct 43 of the refilling device 40 in order to control the flow rate of aerosol-generating material 52 from the reservoir 50 through the refilling device 40 and into the article 30. Equally, a ball valve or diaphragm may be located proximate to each refilling inlet 45 in order to independently control the rate of transfer of aerosol-generating material 52 into each of the refilling inlets 45 or from each of the refilling inlets 45 into the duct 43. For example, this allows the refilling control circuitry 48 to prevent a first aerosol-generating material 52 being transferred from a first reservoir 50 whilst a second aerosol-generating material 52 is being transferred from a second reservoir 50 to the article 30. This also allows the refilling control circuitry 48 to facilitate the transfer the first aerosol-generating material 52 from the first reservoir 50 and the second aerosol-generating material 52 from the second reservoir 50 simultaneously to the article 30, but at different transfer rates, thereby creating an aerosol-generating material 32 in the article 30 containing a mixture of the first aerosol-generating material 52 and the second aerosol-generating material 52 at different concentrations.
The refilling device 40 illustrated in Figure 3 also optionally comprises a device interface 49 configured to receive the aerosol provision device 20 in order to supply electrical

13 power from the refilling device 40 to the aerosol provision device 20. This electrical power can be used, for example, to recharge the power source or battery 14 of the aerosol provision device 20 and to facilitate the transfer of electrical signals between the refilling control circuitry 48 and the device control circuitry 28. This allows the user to use the refilling device 40 as a means of charging the aerosol provision device 20 whilst the article 30 is being replenished with aerosol-generating material 32, thereby reducing the number of associated devices needed to operate and maintain the aerosol provision system 10. The device interface 49 may be a wired interface, such as using electrical connectors as described above, or a wireless interface such as inductive or capacitive coupling. The device interface 49 may also be configured to allow the transfer of data between the refilling control circuitry 48 and the device control circuitry 28. The refilling control circuitry 48 may be configured to read data from the aerosol provision device 20 and/or write data to the aerosol provision device 20, for example to perform a software update, thereby installing an updated version of software onto the device control circuitry 28.
As set out above, the refilling device 40 facilitates the transfer of aerosol-generating material 52 from the reservoir 50 to the article 30 in order to refill or replenish the article 30 so that it can be reused as part of the aerosol provision system 10. By way of a concrete example, when a reservoir 50 is received by one of the reservoir interfaces 47, the connectors 47 located proximate to or in the corresponding reservoir interface 46 mate with the connectors 51 on the reservoir 50 and the refilling inlet 45 located proximate to or in the corresponding reservoir interface 46 mates with the reservoir outlet 55. When an article 30 is received by the article interface 42, the connectors 41 located proximate to or in the article interface 42 mate with the connectors 31 on the article 30 and the refilling outlet 45 mates with the refilling orifice 34 on the device 30. The refilling control circuitry 48 is then configured to facilitate the transfer of aerosol-generating material 52 from the reservoir 50 to the article 30 by facilitating the transfer of aerosol-generating material 52 from the reservoir 50 into the duct 42 of the refilling device 40 via the reservoir outlet 51 and the refilling inlet 45, and from the duct 42 of the refilling device 40 into the aerosol-generating material storage area 39 of the article 30 via the refilling outlet 44, the refilling orifice 34 and the refilling tube 33.
In the examples where the refiling device 40 has a plurality of reservoir interfaces 46, the refilling control circuitry 48 is configured to selectively facilitate the transfer of aerosol-generating material 52 from a reservoir 50 received by one of the reservoir interfaces 46, for example in response to a determination that only one of the reservoir interfaces 46 has received a reservoir 50, or in response to a selection of a particular reservoir 50 from which aerosol-generating material 52 should be transferred, for example a user input or a determination based on one or more parameters of each of the reservoirs 50 stored on the

14 respective reservoir control circuitry 58. In this case, the refilling control circuitry 48 is configured to receive, from a user of the refilling device 40, a selection of one or more reservoir interfaces 46 and selectively facilitate the transfer of aerosol-generating material 52, from each reservoir 50 connected to one of the one or more selected reservoir interfaces 46, to the article 30 when the article 30 is coupled to the refilling device.
In other words, the refilling control circuitry 48 is configured to only transfer aerosol-generating material 52 from a reservoir 50 connected to a selected reservoir interface 46, and prevent aerosol-generating material 52 from being transferred from any other reservoir 50 connected to the refilling device 40.
Although not illustrated, in some examples, the refilling device 40 can comprise a tank, container or other such receptacle for storing aerosol-generating material 52 received from the reservoir 50, for example when a reservoir 50 is received by the reservoir interface 46 without an article 30 being received by the article interface 42, thereby allowing the reservoir 50 to be disconnected from the reservoir interface 46 before an article 30 is received by the article interface 42. In this case, the aerosol-generating material 52 is stored in the receptacle of the refilling device 40 until such a time that it can be transferred to an article 30 received by the article interface 42. In this case, control circuitry 48 of the refilling device 40 is configured to facilitate the transfer of aerosol-generating material 52 from the reservoir 50 to the receptacle, and subsequently and separately to facilitate the transfer of the aerosol-generating material 52 from the receptacle to the article 42.
The receptacle of the refilling device 40 can also be used to facilitate the mixing of aerosol-generating material 52 before it is transferred to the article 30. For example, if a first reservoir interface 46 receives a first reservoir 50 containing a first aerosol-generating material 52 and a second reservoir interface 46 receives a second reservoir 50 containing a second aerosol-generating material 52, then the refilling control circuitry 48 can be configured to facilitate the transfer of the first aerosol-generating material 52 from the first reservoir 50 into the receptacle, and facilitate the transfer of the second aerosol-generating material 52 from the second reservoir 50 into the receptacle. The first aerosol-generating material 52 and the second aerosol-generating material 52 can then be mixed in the receptacle, and the mixture of the first aerosol-generating material 52 and the second aerosol-generating material 52 transferred to the article 30.
As described above, the refilling device 40 comprises a reservoir interface 46 configured to receive a reservoir 50. The refilling control circuitry 48 may be configured to detect that a reservoir 50 has been received by the reservoir interface 46, for example by detecting the mating of one or more of the reservoir connectors 51 with the refilling device connectors 47 or the reservoir outlet 55 with the refilling inlet 45 or by detecting when a securing latch, catch or other attachment means of a reservoir interface 46 has been engaged or through the use of a sensing means such as a light sensor or pressure sensor.
In response to a reservoir 50 being received by the refilling device 40, for example by a reservoir interface 46, the refilling control circuitry 48 may be configured to read, from 5 reservoir 50, a value of a counter indicative of the amount of an aerosol generating material 52 in the reservoir 50. For example, the counter may be stored on the reservoir control circuitry 58, and the refilling control circuitry 48 is configured to read the value of the counter stored on the reservoir control circuitry 58 in response to the reservoir 50 being received by a reservoir interface 46, for example in response to the refilling control circuitry 48 detecting 10 that the reservoir 50 has been received by a reservoir interface 46 as described above. The refilling control circuitry 48 may also be configured to read other data stored on the reservoir 50 from the reservoir 50, such as one or more ingredients, the concentration and/or amount of the ingredients and/or one or more flavourants within the aerosol-generating material 52, an identifier, such as a serial number and/or SKU for the reservoir 50 or other means of

15 identifying the reservoir 50 and/or the type of the reservoir 50, a date of manufacture and/or expiry of the reservoir 50.
In some embodiments, the refilling control circuitry 48 is configured determine whether the reservoir 50 is authentic in response to the reservoir 50 being received by the refilling device 40, for example by the reservoir interface 46. An authentic reservoir 50 is a reservoir 50 manufactured by a known or approved manufacturer, such as the same manufacturer as the refilling device 40 and article 30, whilst an inauthentic reservoir 50 may be an imitation or counterfeit reservoir 50, produced to a lower quality and/or may be unsafe or dangerous to use. The refilling control circuitry 48 may be configured to read data from the reservoir 50, such as a serial number of the reservoir 50, a stock keeping unit (SKU), a public key and/checksum, and perform a calculation on the data in order to determine whether the reservoir 50 is authentic. For example, a serial number or SKU
could be compared to a table of serial numbers or SKUs stored on the refilling control circuitry 48 in order to verify that the serial number or SKU is valid, and therefore that the reservoir 50 is authentic. Alternative, a security or encryption operation may be performed, for example using a key stored by the refilling control circuitry 48 and one or more of the serial number, SKU, public key and checksum in order to authenticate the reservoir 50. The refilling control circuitry 48 may be configured to send the data read from the reservoir 50 to a remote source, such as the remote data store 70 described below with reference to Figure 4 in order for the remote source to verify the authenticity of the reservoir 50. The remote data source then sends an indication of the authentication of the reservoir 50 back to the refilling control circuitry 48.

16 In response to the determining that the reservoir 50 is not authentic, the refilling control circuitry 48 is configured to prevent the transfer of aerosol-generating material 52 from the reservoir 50 to the article 30. This ensures that aerosol-generating material 52 can only be transferred from authentic reservoirs 50 by the refilling device 40.
The transfer of aerosol-generating material 52 may be prevented by disabling one or more pumps or other flow control devices within the refilling device 40, or by preventing the actuation of one or more valves within the refilling device 40. The refilling control circuitry 48 may also be configured to provide a notification to the user in response to determining that the reservoir 50 is not authentic. For example, an LED on the refilling device 40 may be illuminated or activated, an audio notification may be played on a speaker on the refilling device 40, or the reservoir 50 may be disconnected or otherwise removed from the reservoir interface 46 by the refilling control circuitry 48.
Otherwise, if it is determined that the reservoir 50 is authentic, the refilling control circuitry 48 is then configured to facilitate the transfer of aerosol-generating material 52 from the reservoir 50 to the article 30. The refilling control circuitry 48 may be configured to read the value of the counter from the reservoir 50 in response to the determination that the reservoir 50 is authentic prior to the transfer of aerosol-generating material 52 from the reservoir 50 to the article 30.
In each case, the value of the counter is indicative of the amount of aerosol generating material 52 stored in the reservoir 50. In some examples, the value of the counter represents the numbers of times aerosol generating material 52 has been transferred from the reservoir 50 is incremented each time aerosol generating material 52 is transferred from the reservoir 50. For example, the value of the counter may be zero when the reservoir 50 is first manufactured and new (i.e. when the reservoir is full of aerosol-generating material), and the value of the counter incremented by one each time aerosol generating material 52 is transferred from the reservoir 50 until the value of the counter exceeds or equals the number of times aerosol generating material 52 is designed or intended to be transferred from the reservoir 50 in its usable life, such as 2, 5 or 10.
Alternatively, when the reservoir 50 is first manufactured and new (i.e. when the reservoir is full), the value of the counter equals the number of times aerosol generating material 52 is designed or intended to be transferred from the reservoir 50 in its usable life. The value of the counter is then decremented by one each time aerosol generating material 52 is transferred from the reservoir 50 until the value of the counter equals zero.
In each case, the reservoir 50 stored a given amount of aerosol generating material 52 when the reservoir 50 is new/full, such as 10m1, 50m1 or 100m1. The refilling device 40 may be configured to transfer a metered amount of aerosol-generating material 52, such as 1m1, 5m1 or 10m1, each time the refilling control circuitry 48 facilitates the transfer of aerosol-generating

17 material 52 from the reservoir 50 to the article 30. The value of counter then indicates the number of times a metered amount of aerosol-generating material 52 can be transferred from the reservoir 50 to the article 30 before the reservoir is empty.
In some examples, the value of the counter represents the amount of aerosol-generating material 52 in the reservoir 50 or the amount of aerosol-generating material 52 that has been transferred from the reservoir 50. For example, the value of the counter may be zero when the reservoir 50 is first manufactured and new (ie when the reservoir is full), and the value of the counter incremented by a number representative of the amount of aerosol-generating material 52 transferred from the reservoir 50 by the refilling device 40 during a refill of the article 30. In other words, if 10m1 of aerosol-generating material 52 is transferred from the reservoir 50 to an article 30 by the refilling device 40 during a refill, the value of the counter is incremented by 10. The counter is then incremented by a number representative of the amount of aerosol-generating material 32 transferred from the reservoir 50 by the refilling device 40 during each refill until the value of the counter exceeds or equals the total amount of aerosol-generating material stored in the reservoir 50 when it is full or new, such as 10m1, 50m1 or 100m1. Alternatively, when the reservoir 50 is first manufactured and new (ie when the reservoir 50 is full), the value of the counter equals the total amount of aerosol-generating material 52 in the reservoir 50. The value of the counter is then decremented by a number representative of the amount of aerosol-generating material 52 transferred from the reservoir 50 by the refilling device 40 during each refill until the value of the counter is less than or equals zero. In both cases, the refilling control circuity 48 is configured to determine the amount of aerosol-generating material 52 transferred from the reservoir 50 by the refilling device 40 during a refill, for example using a flow meter, flow gauge or a calibrated pump of the refilling device 40.
In some examples, the value of the counter represents the amount of aerosol-generating material 52 in the reservoir 50 relative to the capacity of the reservoir 50 or the amount of aerosol-generating material 52 that has been transferred from the reservoir 50 relative to the capacity of the reservoir 50. For example, the value of the counter could be an integer between 0 and 10 or between 0 and 100, where 0 represents an empty reservoir and 10 or 100 represents a full reservoir (i.e. a reservoir 50 at its capacity). The value of the counter is then incremented or decremented each time aerosol-generating material 52 is transferred from the reservoir 50 by an amount indicative of the amount of aerosol-generating material 52 transferred from the reservoir 50 relative to the capacity of the reservoir 50. For example, if the reservoir 50 stores 100m1 of aerosol-generating material 52 when the reservoir 50 is full and 10m1 of aerosol-generating material 52 is transferred from the reservoir 50, the value of the counter is incremented or decremented by 1 for a counter

18 with values between 0 and 10, and by 10 for a counter with values between 0 and 100, since 10% of the capacity of the reservoir 50 has been transferred.
The refilling control circuitry 48 is configured to facilitate the transfer of aerosol-generating material 52 from the reservoir 50 to an article 30 coupled to the refilling device 40. As described above, the article 30 may be coupled to the refilling device 40 using an article interface 42. The transfer of aerosol-generating material 52 from the reservoir 50 to the article 30 coupled to the refilling device 40 is facilitating by the refilling control circuitry 48 as described above. For example, the refilling control-circuitry 48 may be configured to only facilitate the transfer of aerosol-generating material 52 when both the reservoir 50 is received by the reservoir interface 47 and an article 30 is coupled to the refilling device 40.
The refilling control circuitry 48 may be configured to facilitate the transfer of aerosol-generating material 52 in response to a user input, for example by the user pressing a button on the refilling device 40 or by the user providing an input on a touch-screen display on the refilling device 40. As described above, where there are a plurality of reservoirs 50 connected to the refilling device 40 as described above, the user input may represent a selection of one of the reservoir interfaces 46 and/or reservoirs 50 from which aerosol-generating material 52 should be transferred, or a selection of more than one of the reservoir interfaces 46 and/or reservoirs 50 in the case where the aerosol-generating material 52 transferred to the article 30 is a mixture of aerosol-generating material from more than one of the reservoirs.
In response to the transfer of the aerosol-generating material 52 from the reservoir 50 to the article 30, the refilling control circuitry 48 is configured to cause the value of the counter to be updated. In other words, value of the counter stored on the reservoir 50 is updated by the refilling control circuitry 48 to indicate that aerosol-generating material 52 has been transferred from the reservoir 50 to the article 30. As described above, the counter may be stored on the reservoir control circuity 58 and the refilling control circuitry 48 configured to overwrite the value of the counter stored on the reservoir control circuity 58 with an updated value, or the refilling control circuitry 48 may be configured to instruct the reservoir control circuitry 58 to update the value of the counter in response the aerosol-generating material 52 from the reservoir 50 to the article 30. As described above, the value of the counter may be updated by incrementing or decrementing the counter depending on the particular implementation of the counter.
As described above, the article control circuitry 38 may store data indicative of an amount of aerosol-generating material 32 stored in the article 30, for example data related to the amount of aerosol-generating material 32 remaining in the aerosol-generating material storage area 39 or data indicating the amount of aerosol-generating material stored in the aerosol-generating material storage area 39 relative to the capacity of the aerosol-

19 generating material storage area 39. The refilling control circuitry 48 may be configured to read this data from the article 30, for example in response to the article 30 being coupled to the refilling device. The refilling control circuitry 48 may also be configured to read other data stored on the article 30 from the article 30, such as a serial number and/or SKU for the article 30 or other means of identifying the article 30 and/or the type of the article 30, a date of manufacture and/or expiry of the reservoir 30, an indication of the number of times the article 30 has been refilled, the capacity of the aerosol-generating material storage area 39 and/or the amount of aerosol-generating material remaining in the aerosol-generating material storage area 39.
The refilling control circuitry can then facilitate the transfer of aerosol-generating material 52 from the reservoir 50 to the article 30 based on the data indicative of an amount of aerosol-generating material 32 stored in the article 30 and/or based on the value of the counter. For example, the refilling control circuitry 48 may be configured to use the data indicative of an amount of aerosol-generating material 32 stored in the article 30 and/or the value of the counter the facilitate the transfer of an amount of aerosol-generating material 52 from the reservoir 50 to the article 30 in order to refill the aerosol-generating material storage area 39 to its capacity (ie so that the aerosol-generating material storage area 39 is full of aerosol-generating material 32), to half of its capacity or a percentage of its capacity.
The data indicative of an amount of aerosol-generating material stored in the article 30 can also be used as part of a determination of the amount of aerosol-generating material 52 transferred to the article 30, for example in conjunction with the value of the counter in order to determine of the amount of aerosol-generating material 52 transferred to the article 30. The refilling control circuitry 48 may then be configured to use the determined amount of aerosol-generating material 52 transferred to the article 30 to update the data indicative of an amount of aerosol-generating material 32 stored in the article 30.
The refilling control circuitry 48 can be configured to determine if the reservoir 50 is expired based on the updated value of the counter following the transfer of aerosol-generating material 52 from the reservoir 50. The reservoir 50 is considered to be expired when it is empty (all of the aerosol-generating material 52 has been transferred from the article 50), or when it is nearly empty (there is a small amount of aerosol-generating material 52 remaining in the article 50 that it would not be practical to transfer to the article 30).
Accordingly, when the reservoir 50 is considered expired, the reservoir 50 can no longer be used and should be replaced. In other words, refilling control circuitry 48 is configured to determine whether the reservoir has reached the end of its usable life.
The value of the counter can be used to determine if the reservoir 50 is expired. For example, in the examples described above where the counter is decremented when aerosol-generating material 52 is transferred from the reservoir 50 to the article 30, the reservoir 50 is expired when the updated value of the counter is equal to or less than zero. In the examples described above where the counter is incremented when aerosol-generating material 52 is transferred from the reservoir 50 to the article 30, the reservoir 50 is expired when the updated value of the counter is exceeds or equals the number of times aerosol 5 generating material 52 is designed or intended to be transferred from the reservoir 50 in its usable life, or when the updated value of the counter exceeds or equals the total amount of aerosol-generating material stored in the reservoir 50 when it is full or new.
Alternatively, the refilling control circuitry 48 can be configured to determine if the reservoir 50 is expired based a comparison between the updated value of the counter and a 10 reservoir threshold. The reservoir threshold may be set so that the reservoir 50 expires before the reservoir 50 is empty. For example, the reservoir threshold may be set so that the reservoir 50 is determined to be expired when 80, 90 or 95% of the aerosol-generating material in the reservoir 50 has been transferred to the article 30. This ensures that the reservoir is not completely depleted by the refilling device 40, as the pressure and/or energy 15 required to transfer aerosol-generating material 52 from the reservoir 50 may increase as more aerosol-generating material 52 is transferred from the reservoir 50, such that the final portions/amounts of aerosol-generating material 52 become too difficult to remove by the refilling device 40. The reservoir threshold therefore represents a point at which the reservoir 50 can be considered expired even though a small amount of aerosol-generating

20 material 52 will still remain in the reservoir 50 (i.e. the reservoir 50 is considered operationally or effectively empty). The reservoir threshold may be stored on the refilling device 40, for example on the refilling control circuitry 48, or on the reservoir 50, for example on the reservoir control circuitry 58. VVhere the reservoir threshold is stored on the reservoir 50, the refilling control circuitry 48 is configured to read the reservoir threshold from the reservoir 50, either at the same time as reading the value of the counter from the reservoir 50 or prior to or as part of determining whether the reservoir 50 is expired.
In response to determining that the reservoir 50 is expired, the refilling control circuitry 48 is configured to write data to the computer-readable memory indicating that the reservoir 50 is expired. The computer-readable memory may be on the article 30, for example forming part of the article control circuitry 38. In this case, the data may be stored on the reservoir control circuitry 58, and the refilling control circuitry 48 configured to either write directly to the reservoir circuitry 58 or instruct the reservoir control circuitry 58 to write the data. Alternatively, the computer-readable memory may be on the refilling device 40, for example forming part of the refilling control circuitry 48, on the aerosol provision device 20 or the remote data store 70 or the remote device 60 as described below with reference to Figure 4. The refilling control circuitry 48 may be configured to write data indicating that the reservoir 50 is expired to computer-readable memory in a plurality of locations, such two or

21 more of the reservoir 50, the aerosol provision device 20, the remote data store 70, the remote device 60 and the refilling device 40.
The data written to the computer-readable memory may take the form of a data field or flag that is created in order to indicate that the reservoir 50 is expired.
Alternatively, the writing of data may update an existing field or flag to change a value stored on the computer-readable memory to indicate that the reservoir 50 is expired. For example, the flag or data field may be a binary value, where "0" indicates the reservoir 50 is not expired and "1"
indicates the reservoir 50 is expired, or the flag or data field may be a Boolean or logical operator, where "false" indicates the reservoir 50 is not expired and "true"
indicates the reservoir 50 is expired. The refilling control circuitry 48 is configured to write data to the computer-readable memory to update the "0" to a "1" or the "false" to a "true"
in response to determining that the reservoir 50 is expired. Alternatively, the writing of data may comprise writing the reservoir limit to the reservoir 50 where a reservoir limit is used but not already stored on the reservoir 50. The writing of data may comprise writing an identifier, such as a serial number or other means of identifying the reservoir 50, to a list of identifiers for expired reservoirs stored in the computer-readable memory. In other words, the list comprises an identifier for each reservoir that has expired, and the identifier for the reservoir 50 is written or otherwise added to the list to indicate that the reservoir 50 has expired.
In some embodiments, before the refilling control circuitry 48 facilitates the transfer of aerosol-generating material 52 from the reservoir 50 to the article 30, the refilling control circuitry 48 is configured determine whether the reservoir 50 is expired in response to the reservoir 50 being received by the reservoir interface 46. Where the refilling control circuitry 48 is also configured to determine whether the reservoir 50 is authentic, the determination of whether the reservoir 50 is expired may be performed before, after or concurrently with the determination of whether the reservoir 50 is authentic.
The refilling control circuitry 48 may be configured to determine whether the reservoir 50 is expired by determining whether data has been written to the computer-readable memory indicating that the reservoir 50 is expired. For example, as described above, the refilling control circuitry 48 may be configured to determine whether a data field or flag is stored on the computer-readable memory, or whether the value of a particular data field or flag indicates that the reservoir 50 is expired. Alternatively, the refilling control circuitry 48 may be configured to read the value of the counter from the reservoir 50 and determine whether the reservoir 50 has expired based on the value of the counter. For example, the value of the counter stored on the reservoir 50 can be compared to the reservoir limit as described above in relation to the updated counter value following the transfer of aerosol-generating material 52. Alternative, the refilling control circuitry 48 may be configured to determine the identifier for the reservoir 50, for example by reading data from the reservoir

22 50 or by prompting the user of the refilling device to input a means of determining the identifier, such as a user name or password associated with the user or the identifier for the reservoir itself. The refilling control circuitry 48 is then configured to compare the identifier to the list of identifiers for expired reservoirs stored in the computer-readable memory in order to determine whether the reservoir 50 is expired In response to the determining that the reservoir 50 is expired, the refilling control circuitry 48 is configured to prevent the transfer of aerosol-generating material 52 from the reservoir 50 to the article 30. This ensures that an expired reservoir 50 cannot be used again by the refilling device 40. The transfer of aerosol-generating material 52 may be prevented by disabling one or more pumps or other flow control devices within the refilling device 40, or by preventing the actuating of one or more valves within the refilling device 40.
The refilling control circuitry 48 may also be configured to provide a notification to the user in response to determining that the reservoir 50 is expired. For example, an LED
on the refilling device 40 may be illuminated or activated, an audio notification may be played on a speaker on the refilling device 40, or the reservoir 50 may be disconnected or otherwise removed from the reservoir interface 46 by the refilling control circuitry 48.
Otherwise, if it is determined that the reservoir 50 is not expired, the refilling control circuitry 48 is then configured to facilitate the transfer of aerosol-generating material 52 from the reservoir 50 to the article 30 as described above, optionally reading the value of the counter from the reservoir 50 before facilitating the transfer of aerosol-generating material 52.
In some examples, the refilling control circuitry 48 is configured to write data to one or more of the article control circuitry 38, the reservoir control circuitry 58 or memory of the refilling control circuitry 48 during the refilling process described above.
This ensures that, in the event of a power cut or malfunction of one or more of the components, data related to the refilling process is recorded so that the state or condition of each of the components can be determined after the power cut or whilst fixing and recovering from the malfunction Figure 4 illustrates a system 400 comprising the refilling device 40, a remote data store 70, and a remote device 60, each of which is communicatively coupled.
The remote data store 70 may be a physical server or a virtualized infrastructure such as cloud storage.
The remote device 60 may include any suitable electronic device that can be communicatively coupled to the remote data store 70 and the refilling device 40. For example, the remote device 60 may include a mobile device (such as a smartphone), a FDA, a personal computer, laptop, tablet, smartwatch, etc.
The remote data store 70 is configured to communicate with the refilling device 40 and the remote device 60 using a wireless communication protocol, such as W-Fi, Bluetooth, or using a cellular network. The communication means used between the remote

23 data store 70 and the refilling device 40 between the remote data store 70 and the remote device 60 may be the same or may be different. As illustrated in Figure 4, the refilling device 40 may be configured to only communicate with the remote device 60 via the remote data store 70, or the refilling device 40 may be configured to also communicate directly with the remote device 60.
In some embodiments, the refilling control circuitry 48 is further configured to send the value of the counter 30 to the remote data store 70. This may be the value of the counter read from the reservoir 50 before aerosol-generating material 52 is transferred to the article 30, the updated value of the counter following aerosol-generating material 52 being transferred to the article 30, or both. In other words, the refilling control circuitry 48 may be configured to send the value of the counter read from the reservoir 50 to the remote data store 70 in response to reading the value of the counter from the reservoir 50, and/or send the updated value of the counter to the remote data store 70 in response to updating the value of the counter. The refilling control circuitry 48 may also be configured to send the data indicating the reservoir 50 is expired to the remote data store 70 and/or data indicating the reservoir 50 is not authentic to the remote data store 70 in response to the respective determinations. As described above, the computer-readable memory may be located at the remote data store 70, such that the writing of data to the remote data store comprises sending the data indicating the reservoir 50 is expired to the remote data store 70 in order for the data to be written to the computer-readable memory.
The refilling control circuitry 48 may also be configured to send other data to the remote data store 70, such any data read from the article control circuitry 38, such as an identifier, serial number and/or SKU for the article 30 or other means of identifying the article and/or the type of the article 30, a date of manufacture and/or expiry of the reservoir 30, 25 an indication of the number of times the article 30 has been refilled, the capacity of the aerosol-generating material storage area 39 and/or the amount of aerosol-generating material remaining in the aerosol-generating material storage area 39, and any data read from the reservoir control circuitry 58, one or more ingredients, the concentration and/or amount of the ingredients and/or one or more flavourants within the aerosol-generating 30 material 52, an identifier, such as a serial number and/or SKU for the reservoir 50 or other means of identifying the reservoir 50 and/or the type of the reservoir 50, a date of manufacture and/or expiry of the reservoir 50. Accordingly, the refilling control circuitry 48 may be configured to read data from the article 30 in response to the article 30 being received by the article interface 42, and/or read data from a reservoir 50 in response to the reservoir 50 being received by a reservoir interface 46, and then send the received data to the remote data store 70. The refilling control circuitry 48 may also be configured to store

24 the data received from the article 30 and/or the reservoir 50 on the refilling device 40, or example in memory of the refilling control circuitry 48.
In some examples, the refilling control circuity 48 is configured to send the read data to the remote data store 70 in response to reading it from the respective component. For example, the refilling control circuity 48 is configured send the data to the remote data store 70 as soon as it is read or received. Alternatively or in addition, the refilling control circuity 48 is configured to store the read data on the refilling device 40, for example on memory of the refilling control circuity 48, and then send the data to the remote data store 70 subsequently, for example in response to a request from the remote data store 70 or the refilling control circuity 48 may be configured to send the data to the remote data store 70 periodically, for example every minute, every hour or every 5 hours, or the refilling control circuity 48 may be configured to send the data to the remote data store 70 when a predetermined amount of data is stored on the refilling control circuity 48.
Equally, the refilling control circuity 48 can be configured to send data to the remote data store 70 in response to reading it from the respective component when an active or available wireless connection exists between the refilling device 40 and the remote data store 70, and to store the data on the refilling control circuity 48 when an active or available wireless connection does not exist between the refilling device 40 and the remote data store 70, so that the data can then be sent in response to an active or available wireless connection becoming available.
As described above, the refilling control circuitry 48 may be configured to provide one or more notifications to the user of the refilling device 40. For example, the refilling control circuitry 48 may provide a notification to the user of the refilling device 40 based on the value of the counter. For example, the notification may provide an indication of the number of times aerosol-generating material 52 has been transferred from the reservoir 50, or the amount of aerosol-generating material 52 that has been transferred to the article 30, either for a particular refill of the article 30 or the total amount of aerosol-generating material 52 that has been transferred from the reservoir 50. In some examples the notification provides an indication of the number of times aerosol-generating material 52 can be transferred from the reservoir 50 or the amount of aerosol-generating material 52 that can be transferred from the reservoir 50 before the reservoir 50 expires. In other words, the refilling control circuitry 48 is configured to use the value of the counter determine the number of times aerosol-generating material 52 can be transferred from the reservoir 50 or the amount of aerosol-generating material 52 that can be transferred from the reservoir 50 before the reservoir 50 needs to be replaced. For example, an LED on the refilling device 40, such as an amber coloured LED, may be activated when the reservoir 50 has a particular number of refills/uses remaining, such as 1, 5 or 10, or when the amount of aerosol-generating material 52 that can be transferred from the reservoir 50 is at a particular value, such as 10m1, 20m1 or 100m1. Alternatively, one or more LEDs may be activated on the refilling device 40 to create a pattern indicative of the number of refills/uses or amount of aerosol-generating material 52 remaining, or the number or indication may be displayed on a display screen of the refilling 5 device 40. The notification may provide an indication of the amount of aerosol-generating material 52 remaining in the reservoir 50, either as an absolute value or relative to the capacity of the reservoir 50.
In some examples a notification is provided to the user in response to determining that the reservoir 50 is expired. For example, a different LED, or a different colour of LED, 10 such as a red coloured LED, may be activated on the refilling device 40 in order to indicate to the user that the reservoir 50 is expired. Alternatively, a message or symbol may be displayed on a display screen of the refilling device 40 in order to indicate to the user that reservoir 50 has expired and should be replaced.
In a similar fashion, the refilling control circuitry 48 may also be configured to provide 15 a notification to the user based on the data indicative of the amount of aerosol-generating material 32 stored in the article 30 and/or in response to determining that the reservoir 50 is not authentic. For example, the notification may provide an indication of the amount of aerosol-generating material 32 in the article 30, either as an absolute value or relative to the capacity of the aerosol-generating material storage area 39.
20 In each case, notifications from the refilling control circuitry 48 to the user may be provided on the refilling device 40, for example by activating one or more indicator lights, such as the LEDs described above, emitting a sound from a speaker, displaying a message on a display screen on the refilling device 40 or activating a haptic notification means on the refilling device 40. Alternatively or in addition, notifications from the refilling control circuitry

25 48 can be provided on an application on the remote device 60. In this case, the refilling control circuitry 48 is configured to communicate with the remote device 60 such that the notification is provided to the user on the remote device 60, such as on an application installed on the remote device 60. As described above, this may be achieved by the refilling control circuity 48 sending data to the remote data store 70, and the remote device 60 receiving the data from the remote data store 70.
Notifications can be provided on the remote device by displaying a message or symbol on a display screen on the remote device 60, activating an indicator light on the remote device 40, emitting a sound from a speaker on the remote device 60 or activating a haptic notification means on the remote device 60. As will be appreciated, the notification can be provided to the user by any suitable conveying or indication means.
Figure 5 is a flow chart of a method 500 of refilling an article 30 of an aerosol provision system 10, for example performed by the refilling control circuitry 48. The method

26 begins at step 510, where the transfer of aerosol-generating material 52 from a reservoir 50 to the article 30 is facilitated. At step 520, a value of a counter stored on the reservoir is caused to be updated in response to the transfer of the aerosol-generating material 52. The value of the counter is indicative of the amount of an aerosol generating material 52 in the reservoir 50. The method then ends.
Figure 6 is a flow chart of a further method 600 of refilling an article 30 of an aerosol provision system 10, for example performed by the refilling control circuitry 48. The method begins at step 610, where it is detected that a reservoir 50 has been received by a reservoir interface 46. At step 620, it is determined whether the reservoir 50 is authentic. If it is determined that the reservoir 50 is not authentic, the method continues to step 690, where the transfer of aerosol-generating material 52 from the reservoir 50 to the article 30 is prevented. A notification may also be provided to the user indicating that the reservoir 50 is not authentic. The method then ends. If it is determined at step 620 that the reservoir 50 is authentic the method continues to step 630, where it is determined whether the reservoir 50 is expired. If it is determined that the reservoir 50 is expired the method continues to step 690, where the transfer of aerosol-generating material 52 from the reservoir 50 to the article 30 is prevented. A notification may also be provided to the user indicating that the reservoir 50 is expired. The method then ends. If it is determined at step 630 that the reservoir 50 is not expired the method continues to step 640, where a value of a counter is read from the reservoir 50, where the value of the counter is indicative of the amount of an aerosol generating material 52 in the reservoir 50. The method then continues to step 650, where the transfer of aerosol-generating material 52 from the reservoir 50 to the article 30 is facilitated. At step 660, the value of the counter is updated in response to the transfer of the aerosol-generating material 52. At step 670, it is determined if the reservoir 50 is expired based on a comparison based on the updated value of the counter. If it is determined that the reservoir 50 has not expired, the method ends. If it is determined at step 670 that the reservoir 50 is expired, the method continues to step 680, where data is written to computer-readable memory indicating that the reservoir 50 is expired. The method then ends. It will be appreciated that step 630 may be performed before step 620 or concurrently with step 620, such that the transfer of aerosol-generating material 52 from a reservoir 50 to the article 30 is prevented if either the reservoir 50 has expired or the reservoir 50 is not authentic.
Steps 620 and 630 may also be performed on the article 30 in response to the article being coupled to the refilling device 40 before the transfer of aerosol-generating material 52 from the reservoir 50 to the article 30 is facilitated. In other words, if it is determined that either the article 30 has expired or the article 30 is not authentic, the transfer of aerosol-generating material 52 from a reservoir 50 to the article 30 is prevented. The determination as to

27 whether the article 30 has expired or the article 30 is not authentic can be performed using the same techniques as described herein with reference to the reservoir 50.
The methods 500, 600 illustrated in Figures 5 and 6 may be stored as instructions on a computer readable storage medium, such that when the instructions are executed by a processor, the methods 500, 600 described above are performed. The computer readable storage medium may be non-transitory.
As described above, the present disclosure relates to (but it not limited to) a refilling device 40 for an article 30 of an aerosol provision system 10 comprising refilling control circuitry 48. The refilling control circuitry 48 is configured to facilitate the transfer of aerosol-generating material 52 from a reservoir 50 to the article 30 when the article 30 is coupled to the refilling device 40. The refilling control circuitry 48 causes a value of a counter stored on the reservoir to be updated in response to the transfer of the aerosol-generating material 52, the value of the counter indicative of the amount of an aerosol generating material 52 in the reservoir 50.
Thus, there has been described a refilling device for an article of an aerosol provision system, a method of refilling an article of an aerosol provision system and a reservoir.
The various embodiments described herein are presented only to assist in understanding and teaching the claimed features. These embodiments are provided as a representative sample of embodiments only, and are not exhaustive and/or exclusive. It is to be understood that advantages, embodiments, examples, functions, features, structures, and/or other aspects described herein are not to be considered limitations on the scope of the invention as defined by the claims or limitations on equivalents to the claims, and that other embodiments may be utilised and modifications may be made without departing from the scope of the claimed invention. Various embodiments of the invention may suitably comprise, consist of, or consist essentially of, appropriate combinations of the disclosed elements, components, features, parts, steps, means, etc., other than those specifically described herein. In addition, this disclosure may include other inventions not presently claimed, but which may be claimed in future.

Claims

28

1. A refilling device for an article of an aerosol provision system comprising:
refilling control circuitry configured to:
facilitate the transfer of aerosol-generating material from a reservoir to the article when the article is coupled to the refilling device; and cause a value of a counter stored on the reservoir to be updated in response to the transfer of the aerosol generating material, wherein the value of the counter is indicative of the amount of an aerosol generating material in the reservoir.

2. The refilling device of claim 1, wherein the refilling control circuitry is further configured to:
determine if the reservoir is expired based the updated value of the counter;
and write data to computer-readable memory indicating that the reservoir is expired in response to determining that the reservoir is expired.

3. The refilling device of claim 1 or claim 2, wherein the refilling control circuitry is further configured to:
determine, in response to the reservoir being received by the refilling device, whether the reservoir is expired; and prevent the transfer of aerosol-generating material from the reservoir to the article in response to the determining that the reservoir is expired.

4. The refilling device of claim 2 or claim 3, wherein the refilling control circuitry is further configured to provide a notification to a user of the refilling device in response to determining that reservoir is expired.

5. The refilling device of any one of claims 1 to 4, wherein the refilling control circuitry is further configured to:
determine, in response to the reservoir being received by the refilling device, whether the reservoir is authentic; and prevent the transfer of aerosol-generating material from the reservoir to the article in response to the determining that the reservoir is not authentic.

6. The refilling device of claim 5, wherein the refilling control circuitry is further configured to provide a notification to a user of the refilling device in response to determining that reservoir is not authentic.

7. The refilling device of any one of claims 1 to 6, wherein the transfer of aerosol-generating material is based on the value of the counter.

8. The refilling device of any one of claims 1 to 7, wherein the refilling control circuitry is further configured to send the value of the counter to a remote data store.

9. The refilling device of any one of claims 1 to 8, wherein the refilling device comprises a plurality of reservoir interfaces, and the refilling control circuitry is configured to:
receive, from a user of the refilling device, a selection of one or more reservoir interfaces; and selectively facilitate the transfer of aerosol-generating material, from each reservoir connected to one of the one or more selected reservoir interfaces, to the article when the article is coupled to the refilling device.

10. The refilling device of any one of claims 1 to 9, wherein the refilling control circuitry is further configured to read, from the article, data indicative of an amount of aerosol-generating material stored in the article.

11 The refilling device of claim 10, wherein the transfer of aerosol-generating material is based on the data indicative of an amount of aerosol-generating material stored in the article.

12. The refilling device of claims 10 or claim 11, wherein the refilling control circuitry is further configured to send the data indicative of the amount of aerosol-generating material stored in the article to a remote data store.

13. The refilling device of any one of claims 10 to 12, wherein the refilling control circuitry is further configured to provide a notification to a user of the refilling device based on the data indicative of the amount of aerosol-generating material stored in the article.

14. The refilling device of any one of claims 1 to 13, wherein the refilling control circuitry is further configured to provide a notification to a user of the refilling device based on the value of the counter.

15.
The refilling device of claim 14, wherein the notification provides an indication of an amount of aerosol-generating material that can be transferred from the reservoir before the reservoir expires.

16. The refilling device of any one of claims 4, 6, 13, 14 or 15, wherein the notification is provided on the refilling device.

17. The refilling device of any one of claims 4, 6, 13, 14, 15 or 16, wherein the notification is provided on an application on a remote device.

18. A method of refilling an article of an aerosol provision system comprising:
facilitating the transfer of aerosol-generating material from a reservoir to the article when the article is coupled to a refilling device; and causing a value of a counter stored on the reservoir to be updated in response to the transfer of the aerosol generating material, wherein the value of the is counter indicative of the amount of an aerosol generating material in the reservoir.

19. A computer readable storage medium comprising instructions which, when executed by a processor, performs a method of refilling an article of an aerosol provision system comprising:
facilitating the transfer of aerosol-generating material from a reservoir to the article when the article is coupled to a refilling device; and causing a value of a counter stored on the reservoir to be updated in response to the transfer of the aerosol generating material, wherein the value of the counter is indicative of the amount of an aerosol generating material in the reservoir.

20. A reservoir configured to store aerosol-generating material comprising:
reservoir control circuitry configured to:
store a value of a counter indicative of the amount of an aerosol generating material in the reservoir.