• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
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    • 专利摘要:
    kit for an aerosol generating system. an aerosol generating device is provided herein, comprising: a housing containing or configured to receive an aerosol forming substrate (210); an outlet (220) formed in the housing, whereby, when in use, aerosol generated from the aerosol-forming substrate is delivered through the outlet; wherein the housing comprises a first wall (230) around the outlet and a second wall (235) around the first wall, so that an open-ended annular recess (240) is defined between the first and second walls, the annular recess being suitable for retaining a soft nozzle cap (300) to the housing, the soft nozzle cap being readily compressed but resistant. in use, the mouthpiece cap is placed in a user's mouth to directly inhale an aerosol generated by the aerosol generating device. a removable mouthpiece cover is also provided for an electrically actuated smoking device, characterized by comprising a pliable, readily compressed but resilient tubular portion defining a central hole and a filter portion covering the hole of the filter portion.
    公开号:BR112015020606B1
    申请号:R112015020606-9
    申请日:2013-12-20
    公开日:2021-06-22
    发明作者:Alexis Louvet；Michel THORENS
    申请人:Philip Morris Products S.A.；
    IPC主号:
    专利说明:

    [001] The present invention relates to aerosol generating systems. In particular, the present invention relates to aerosol generating systems, such as electrically powered smoking systems, to which a replaceable mouthpiece cover can be easily mounted and removed.
    [002] Electrically heated smoking systems are known in the art. WO-A-2009/132793 discloses an example of an electrically heated smoking system. A liquid is stored in a liquid storage portion, and a capillary wick has a first end that extends into the liquid storage portion to contact the liquid within it, and a second end that extends outwardly of the liquid storage portion. A heating element heats the second end of the capillary wick. The heating element is in the form of an electrical heating element spirally wound into an electrical connection to a power source, and surrounding the second end of the capillary wick. In use, the heating element can be activated by the user to turn on the power supply. Suction in a mouthpiece by the user causes air to be drawn into the electrically heated smoking system over the capillary wick and heating element, and subsequently into the user's mouth.
    [003] The substrate used with an aerosol generating device may be supplied in a cartridge that can be filled or replaced when the supply of aerosol forming substrate is depleted. Providing the aerosol forming substrate in a cartridge has several advantages. But there is an opportunity for improvement in the design of these devices.
    [004] It is an objective of the present invention to provide an aerosol generating device and system that are hygienic, inexpensive and convenient to use.
    [005] In one aspect, an aerosol generating device is provided comprising:
    [006] a housing containing or configured to receive an aerosol forming substrate;
    [007] an outlet formed in the housing in which, when in use, the aerosol generated from the aerosol forming substrate is distributed through the outlet;
    [008] wherein the housing comprises a first wall around the outlet and a second wall around the first wall, so that an open-ended annular recess is defined between the first and second wall, the annular recess being suitable for retain a malleable nozzle cap with the housing.
    [009] In use, the mouthpiece cap is placed in the mouth of a user to directly inhale an aerosol generated by the aerosol generating device. Retaining a replaceable pliable nozzle cover with between two concentric walls has been presented as an effective solution to the problem of the nozzle cover coming off a housing during use, while allowing easy assembly and removal of the nozzle covers.
    [0010] The aerosol generating device may comprise a main body and a cartridge, wherein the cartridge can be connected to the main body and wherein the cartridge contains an aerosol forming substrate. The first or second wall can be part of the cartridge or it can be part of the main body. For example, the first and second walls can be part of the cartridge. Alternatively, the first wall can be part of the cartridge and the second wall can be part of the main body. Alternatively, the first and second walls can be part of the main body. It is also possible that a portion of one of the first and second wall is part of the cartridge and another portion of one of the first and second wall is part of the main body.
    [0011] The device may include a clamping mechanism that is operable to hold a mouthpiece cap received in the annular recess to ensure that it is held in the recess during use of the device. For example, a resilient O-ring or coil spring may be received in a groove in the second wall, the O-ring or spring being configured to hold a nozzle cap received in the recess. A slip collar around the O-ring or spring may be provided, wherein the slip collar is movable between a first position in which the collar does not compress the resilient O‑ring or spring, and a second position in which the collar compresses the resilient O-ring or spring.
    [0012] The housing may alternatively or additionally include latches or claws on a closed end of the annular recess configured to pierce or secure a soft mouthpiece cap received in the recess. The first wall may be cross-sectionally different from the second wall to provide areas of greater compression in the mouthpiece cap. Alternatively or in addition, the first of the second wall may include one or more flutes or protrusions extending into the recess to provide areas of greater compression in the mouthpiece cap when it is received in the recess.
    [0013] The first or second wall, or both the first and second walls, can be formed from a plurality of separate sections and can be continuous or discontinuous.
    [0014] The term "annular" is intended to mean not only the shape of a circular ring, but a closed loop of any cross-section. However, the first and second walls may be circular to define a circularly annular recess.
    [0015] The term "soft nozzle cap" as used in this document means a nozzle cap that is flexible and can be easily deformed without breaking or cracking. In particular, the soft mouthpiece cap is preferably easily compressed but resilient.
    [0016] The housing may comprise any suitable material or materials. Examples of suitable materials include metals, alloys, plastics or composite materials which contain one or more of those materials, or thermoplastics which are suitable for pharmaceutical or food applications, for example polypropylene, polyetheretherketone (PEEK) and polyethylene. Preferably, the material is lightweight and not brittle.
    [0017] Preferably, the device housing can be elongated. Preferably, the aerosol generating device is portable. The aerosol generating device may be a smoking device and may be comparable in size to a conventional cigar or cigarette. The smoking device can have an overall length of between about 30 mm and about 150 mm. The smoking device can have an outside diameter between approximately 5 mm and approximately 30 mm.
    [0018] In another aspect, a consumable cartridge is provided for use in an aerosol generating system, comprising:
    [0019] a housing containing an aerosol forming substrate;
    [0020] an outlet formed in the housing wherein, when in use, the aerosol generated from the aerosol forming substrate is distributed through the outlet;
    [0021] wherein the housing comprises a first wall around the outlet and a second wall around the first wall, so that an open-ended annular recess is defined between the first and second wall, the annular recess being suitable for retain a malleable nozzle cap with the housing.
    [0022] In yet another aspect, a kit is provided for use in an aerosol generating system, comprising:
    [0023] an aerosol generating device and a soft mouthpiece cap, the device comprising:
    [0024] a housing containing or configured to receive an aerosol forming substrate;
    [0025] an outlet formed in the housing wherein, when in use, the aerosol generated from the aerosol forming substrate is distributed through the outlet;
    [0026] wherein the housing comprises a first wall around the outlet and a second wall around the first wall, so that an open-ended annular recess is defined between the first and second wall, the annular recess being suitable for retain a malleable nozzle cap with the housing.
    [0027] wherein the pliable mouthpiece cap comprises a tubular section configured to fit into the annular recess and is configured to allow aerosol delivered through the outlet to pass through the mouthpiece cap and enter the mouth of a user in use.
    [0028] The mouthpiece cap can be configured to slide into the annular recess so that the tubular section is retained in the annular recess. The annular recess may be dimensioned so that the tubular portion of the nozzle cap is radially compressed between the first wall and the second wall when the nozzle cap is coupled to the recess.
    [0029] The nozzle cap or the housing, or both the nozzle cap and the housing can be molded to aid insertion of the nozzle cap into the annular recess. For example, the second wall can be widened so that the annular recess has a larger cross section at its open end. Likewise, the nozzle cap can be tapered at an insertion end, where the insertion end is the end of the nozzle cap that is first received by the annular recess during coupling of the nozzle cap to the housing.
    [0030] The mouthpiece cap may comprise a filter portion connected to the tubular portion, the filter portion covering an orifice of the tubular section. The filter portion may have low filtration efficiency. The filter portion can be used to provide a desired drag resistance to the aerosol generating system.
    [0031] The mouthpiece cap can be used for a single session or smoking experience per user and then discarded. A new nozzle cap may be provided when the system is used again. This reduces the risk of accumulation of unwanted debris and pathogens in the mouthpiece cap portion and reduces the cleaning burden for the user. Alternatively, the mouthpiece cap can be cleaned after each use and then reused.
    [0032] The removable mouthpiece cap can mimic the filter of a conventional cigarette in appearance. For example, the removable nozzle cap can be formed from cellulose acetate, rubber or plastic such as polyethylene or polypropylene or a mixture of both and can be covered with a layer of paper.
    [0033] The aerosol generating device may be a smoking device. The device may contain sufficient aerosol forming substrate for a plurality of smoking sessions. In that case, the kit can include a plurality of mouthpiece caps. In particular, the device can contain enough aerosol forming substrate for a predetermined number of regular smoking sessions and the kit can contain that predetermined number of mouthpiece caps so that a different mouthpiece cap can be used for each smoking session. smoke.
    [0034] The smoking device may comprise a main body and a cartridge, wherein the cartridge can be connected to the main body and wherein the cartridge contains an aerosol forming substrate.
    [0035] In yet another aspect, a kit is provided for use in an aerosol generating system, comprising:
    [0036] a consumable cartridge for use in an aerosol generating system, the cartridge contains an aerosol forming substrate; and
    [0037] a plurality of malleable mouthpiece caps.
    [0038] The aerosol generating system may be a smoking system. The cartridge can contain enough aerosol forming substrate for a plurality of predetermined regular smoking sessions and the kit can contain that predetermined number of mouthpiece caps so that a different mouthpiece cap can be used for each smoking session.
    [0039] The consumable cartridge may comprise:
    [0040] a housing containing the aerosol forming substrate; and
    [0041] an outlet formed in the housing wherein, when in use, the aerosol generated from the aerosol forming substrate is distributed through the outlet;
    [0042] wherein the housing comprises a first wall around the outlet and a second wall around the first wall, so that an open-ended annular recess is defined between the first and second wall, the annular recess being suitable for retain a malleable nozzle cap with the housing.
    [0043] The pliable mouthpiece cap may comprise a tubular section configured to fit into the annular recess and being configured to allow aerosol delivered through the outlet to pass through the mouthpiece cap and enter the mouth of a user in use.
    [0044] For all aspects of the invention, the aerosol forming substrate may be a liquid aerosol forming substrate. The aerosol forming substrate can contain nicotine. The aerosol forming substrate can be adsorbed, coated, impregnated or otherwise loaded onto a carrier or support. The aerosol forming substrate can be a solid substrate.
    [0045] In some embodiments, the device or cartridge comprises a capillary wick in communication with the aerosol forming supply or substrate. It is also possible for a capillary wick to be pre-loaded with liquid, forming the aerosol forming substrate supply.
    [0046] Preferably, the capillary wick is arranged to be in contact with the liquid in a liquid storage part of the device or cartridge. In that case, when in use, liquid is transferred from the liquid storage part to at least one electrical heating element by capillary action on the capillary wick. In one embodiment, the capillary wick has a first end and a second end, the first end extends to the liquid storage portion to contact the liquid therein, and at least one electrical heating element is arranged to heat the liquid at the second end. When the heating element is activated, the liquid at the second end of the capillary wick is vaporized by the heating element to form the supersaturated vapor. Supersaturated vapor is mixed with and transported in the air stream. During flow, vapor condenses to form the aerosol and the aerosol is transported toward a user's mouth through the outlet and the mouthpiece cap. The heating element, in combination with a capillary wick, can provide a quick response as this arrangement can provide a large liquid surface area for the heating element. Control of the heating element according to the invention will therefore depend on the structure of the capillary wick arrangement.
    [0047] A liquid substrate may be absorbed onto a porous carrier material, which may be made of any suitable plug or absorbent body. For example, any suitable absorbent body or plug can be a metal foam or plastic foam material, polypropylene, terylene, nylon fibers or ceramics. The liquid substrate may be retained in the porous carrier material prior to use of the electrically heated aerosol generating device or, alternatively, the liquid substrate material may be released into the porous carrier material during or immediately prior to use. For example, the liquid substrate can be supplied in a capsule. The capsule shell preferably melts upon heating and releases the liquid substrate into the porous carrier material. The capsule can optionally contain a solid in combination with the liquid.
    [0048] If the aerosol forming substrate is a liquid substrate, the liquid must have adequate physical properties. These include, for example, a boiling point, vapor pressure and surface tension characteristics to make them suitable for use in the aerosol generating device. Control of at least one electrical heating element can depend on the physical properties of the liquid substrate. The liquid may include a tobacco derived material which comprises volatile tobacco flavor compounds which are released from the liquid upon heating. Alternatively, or in addition, the liquid may include a non-smoking material. The liquid can include water, solvents, ethanol, plant extracts and natural or artificial flavors. Preferably, the liquid further comprises an aerosol former. Examples of suitable aerosol formers are glycerin and propylene glycol. The liquid preferably comprises a mixture of aerosol formers, for example, glycerin, propylene glycol; a fraction of water, nicotine and flavoring.
    [0049] An advantage of providing a liquid storage portion is that a high level of hygiene can be maintained. The use of a capillary wick, which extends between the liquid and the electrical heating element, allows the structure of the device to be relatively simple. The liquid has physical properties, including viscosity and surface tension, allowing the liquid to be transported through the capillary wick by capillary action.
    [0050] The capillary body may comprise any suitable material or combination of materials that is capable of transmitting the liquid aerosol forming substrate to the vaporizer. The capillary body is preferably composed of a porous material, but this need not necessarily be the case. The capillary body can be shaped like a wick. The capillary wick can have a fibrous or spongy structure. The capillary wick preferably comprises a pack of capillaries. For example, the capillary wick may comprise a plurality of fibers or threads, or other thin bore tubes. Fibers or threads can generally be aligned in the longitudinal direction of the aerosol generating device. Alternatively, the capillary wick may comprise sponge-like or foam-like material formed into a rod shape. The rod shape can extend along the longitudinal direction of the aerosol generating device. The structure of the wick forms a plurality of small holes or tubes, through which the liquid can be conveyed to the electrical heating element by means of capillary action. The capillary wick can comprise any suitable material or combination of materials. Examples of suitable materials are ceramic-based or graphite-based materials in the form of fibers or sintered powders. The capillary wick can have any capillary and porosity suitable for use with different liquid physical properties such as density, viscosity, surface tension and vapor pressure. The capillary properties of the wick, combined with the properties of the liquid, ensure that the wick is always wet in the heating area.
    [0051] Preferably, the cartridge includes an electrically driven aerosol generating element and electrical contacts for connecting the aerosol generating element to a power supply contained in the device. The electrically powered aerosol generating element is preferably an electrical heater.
    [0052] The electric heater may comprise a single heating element. Alternatively, the electric heater may comprise more than one heating element, for example two, or three, or four, or five, or six or more heating elements. The heating element or heating elements can be suitably arranged in order to more effectively heat the aerosol forming substrate.
    [0053] In a preferred embodiment, at least one heating element is a coil of wire with electrical resistance. The pitch of the coil is preferably between 0.5 and 1.5 mm and more preferably approximately 1.5 mm. Coil pitch means the spacing between adjacent coil turns. The coil may advantageously comprise less than six turns and preferably has less than five turns.
    [0054] The at least one electrical heating element preferably comprises a material with electrical resistance. Suitable electrically resistant materials include, but are not limited to, the following: semiconductors, such as doped ceramics, electrically "conductive" ceramics (such as, for example, molybdenum disilicide), carbon, graphite, metals, metal alloys, and composite materials made of a ceramic material and a metallic material. Such composite materials can comprise doped or non-doped ceramics. Examples of suitable doped ceramics include doped silicon carbides. Examples of suitable metals include titanium, zirconium, tantalum and platinum group metals. Examples of suitable metal alloys include stainless steel, Constantan, alloys containing nickel, cobalt, chromium, aluminum, titanium, zirconium, hafnium, niobium, molybdenum, tantalum, tungsten, tin, gallium, manganese and iron, and nickel-based superalloys, iron, cobalt, stainless steel, Timetal® and iron and aluminum based alloys and iron, manganese and aluminum based alloys. Timetal® is a registered trademark of Titanium Metals Corporation, 1999 Broadway Suite 4300, Denver, Colorado. In composite materials, electrically resistant material can optionally be incorporated, encapsulated or coated with an insulating material or vice versa, depending on the energy transfer kinetics and external physicochemical properties required. The heating element may comprise a metallic foil etched in etching and insulated between two layers of an inert material. In that case, the inert material may comprise Kapton®, pure polyimide or mica sheet. Kapton® is a registered trademark of E.I. du Pont de Nemours and Company, 1007 Market Street, Wilmington, Delaware 19898, United States of America.
    [0055] In a preferred embodiment, in which the at least one heating element is a coil of wire with electrical resistance, and the wire with electrical resistance advantageously has a diameter between 0.10 and 0.15 mm and preferably , of approximately 0.125 mm. The electrically resistant wire is preferably formed from 904 or 301 stainless steel.
    [0056] Alternatively, the at least one electrical heating element may comprise an infrared heating element, a photonic source or an inductive heating element.
    [0057] The heating element can take any suitable shape. For example, a heating element can take the form of a heating blade. Alternatively, the heating element may take the form of a case or substrate having different electroconductive portions, or a metallic tube with electrical resistance. If the aerosol forming substrate is a liquid supplied within a container, the container may be incorporated with a disposable heating element. Alternatively, one or more heating needles or rods that pass through the center of the aerosol forming substrate may also be suitable. Alternatively, the heating element may be a disk (final) heating element or a combination of a disk heating element with heating needles or rods. Alternatively, the heating element can include a flexible sheet of material arranged to encircle or partially encircle the aerosol-forming substrate. Other alternatives include a heating wire or filament, for example a nickel-chromium (Ni-Cr), platinum, tungsten or alloy steel wire, or a heating plate. Optionally, the heating element can be placed in or on a rigid carrier material.
    [0058] The heating element can heat the aerosol-forming substrate by means of conduction. The heating element may be at least partially in contact with the substrate or with the conveyor on which the substrate is deposited. Alternatively, heat from a heating element can be conducted to the substrate by means of a heat-conducting element.
    [0059] Alternatively, the heating element may transfer heat to incoming ambient air which is engulfed through the electrically heated aerosol generating device during use, which in turn heats the aerosol forming substrate by convection. Ambient air can be heated before passing through the aerosol forming substrate. Alternatively, if the aerosol forming substrate is a liquid substrate, ambient air may first be drawn through the substrate and then heated.
    [0060] Preferably, the device includes an electrical circuit to control the operation of the device. The electrical circuit can comprise a microcontroller. The microcontroller may include an integral derivative proportional (PID) regulator to control the power supplied to a heating element. The electrical circuit can be included in the cartridge and can be the functional element in the insertion portion of the cartridge.
    [0061] The device may include a flow sensor to detect a gas flow rate through the device. The sensor can be any sensor that can detect the flow, as this could be indicative that a user is inhaling. The sensor could be an electromechanical device. Alternatively, the sensor can be any one of: a mechanical device, an optical device, an opto-mechanical device, a microelectrical mechanical systems (MEMS) based sensor, and an acoustic sensor. The sensor can be a thermally conductive flow sensor, a pressure sensor, an anemometer, and it must be able to not only detect an air flow, but it must be able to measure the air flow. Then, the sensor must be able to deliver an analog electrical signal or digital information representative of the amplitude of the airflow. The flow sensor can be positioned on the main body of the device or on the cartridge.
    [0062] The aerosol generating device may comprise an aerosol forming chamber, in which the aerosol is formed from a supersaturated vapor, this aerosol is then transported to the mouth of a user. An air inlet and chamber are preferably arranged to define an air flow path from the air inlet to the outlet through the aerosol forming chamber to transmit the aerosol to the air outlet and into the mouth of a user. In a system comprising a cartridge containing the aerosol forming substrate, the aerosol forming chamber is preferably in the cartridge.
    [0063] In a further aspect, a removable mouthpiece cover is provided for use in an electrically powered smoking device comprising a pliable tubular portion defining a central hole and a filter portion covering the hole of the filter portion.
    [0064] The tubular portion can be formed with cellulose acetate. The filter portion can also be formed with cellulose acetate. The tubular portion and the filter portion can be formed from biodegradable materials. The mouthpiece cap can mimic a conventional cigarette filter in appearance, for example in softness and flexibility.
    [0065] It should be understood that features described in relation to one aspect of the invention may also be applicable to other aspects of the invention. In particular, it should be clear that features described in relation to one aspect can also be applied to another aspect and that many of the features described in relation to the cartridge of one aspect may also be included in the main body of the device of another aspect.
    [0066] The invention will be described below, by way of example only, with reference to the attached drawings, in which:
    [0067] Figure 1 shows a schematic cross-section of an aerosol generating system according to an embodiment of the invention;
    [0068] Figure 2 shows the system of Figure 1 in a disassembled state;
    [0069] Figure 3 is a perspective view of a system of the type illustrated in Figure 1 with the nozzle cap removed; and
    [0070] Figure 4 is a perspective view of the system of Figure 3 with the nozzle cap inserted.
    [0071] Figure 1 is a schematic cross-section of an aerosol generating system according to an embodiment of the invention. The system comprises a main body 100, a cartridge 200 and a nozzle cap 300.
    [0072] Figure 2 shows the system of Figure 1 in a disassembled state with the three components of the main body 100, the cartridge 200 and the nozzle cap 300 shown separately from each other.
    [0073] The system shown in Figures 1 and 2 is of the type described in WO2009/132793.
    [0074] The main body 100 of the system has an electrical power supply in the form of a battery and an electrical circuit in the form of hardware. Cartridge 200 has an aerosol forming substrate within a liquid storage portion 210 and a heater (not shown) which, when in use, vaporizes the aerosol forming substrate to form an aerosol. A capillary wick 215 extends from within the liquid storage portion 210 to a position within an aerosol forming chamber 225. The heater is in the form of a resistive heating element, such as a coil heater, in contact with the capillary wick. Power for the electric heater is supplied by the battery inside the main body 100. Electrical contact is made between the cartridge 200 and the main body 100 when they are in an assembled condition, as shown in Figure 1.
    [0075] An air inlet or inlets (not shown), which can be formed in either the main body 100 or the cartridge 200, or between the main body and the cartridge, allow air to enter the device and pass through the chamber. aerosol formation 225 to an outlet 220. In use, air is drawn in through the air inlet to the air outlet by the action of a user puffing or inhaling through the mouthpiece cap 300. Ambient air enters through the air inlet or inlets of air and passes through the heating element and the capillary wick where it draws the vaporized aerosol forming substrate. Then, vaporized aerosol forming substrate cools to form an aerosol before exiting through outlet 220.
    [0076] A breath detection system (not shown), provided in the main body or cartridge, senses that the user has swallowed through the mouthpiece cap. The battery then supplies energy to the heating element to heat the end of the wick surrounded by the heating element. The liquid aerosol forming substrate at that end of the wick is vaporized by the heating element to create a supersaturated vapor. At the same time, the liquid being vaporized is replaced by additional liquid that is pulled by the wick through capillary action. The supersaturated vapor that has been created is mixed with and transported by the air flow. As described above, vapor condenses in the aerosol formation chamber to form an inhalable aerosol, which is transported through outlet 220 and into the user's mouth.
    [0077] In this modality, the nozzle cap 300 couples to the cartridge 200. The nozzle cap 300 is formed of cellulose acetate, covered with an outer layer of paper. The nozzle cap is composed of a tubular portion 310 and a filter portion 320. The nozzle cap tubular portion slides over a first wall 230 of the cartridge, but within a second wall 235 of the cartridge. The first and second walls of the cartridge define an annular recess 240 in which a portion of the tubular portion of the mouthpiece cap is retained, as shown in Figure 1.
    [0078] In this embodiment, the mouthpiece cap, cartridge and main body are all circular in section, as can be seen more clearly in Figures 3 and 4. Figure 3 shows a device of the type shown in Figure 1 and Figure 2 with the nozzle cap 300 separated from the main body 100 and cartridge 200. Figure 4 shows the system with the nozzle cap 300 engaged by recess 240 in the cartridge 200. The system in the configuration of Figure 4 is ready for use.
    [0079] To ensure that the nozzle cap is retained in the recess 240 during use, the recess 240 is sized to compress the tubular portion 310 of the nozzle cap 300. The tubular portion of the nozzle cap is formed of a material which is easily compressed but is resilient. The open end of the recess 240 can be flared to allow easy insertion of the nozzle cap 300 into the recess 240. An insertion end of the nozzle cap 300 can also be tapered to ensure easy insertion of the nozzle cap into the recess. First wall 230 can also be tapered to allow easy insertion of a nozzle cap, but increasing compression of the nozzle filter as it is fully inserted into the recess.
    [0080] A plurality of nozzle caps 300 can be provided in a single pack, possibly with a cartridge 200. The nozzle caps can be packaged so that when the pack is opened, the open ends of the tubular portions 310 face to the outside of the package. A user would then simply need to insert the device (ie cartridge 200 mounted to the main body) into a selected nozzle cap, thereby inserting the nozzle cap into the recess without having to remove the nozzle cap from the pack and enter manually. After a smoking session, the used mouthpiece cover can be removed from the recess and discarded or cleaned.
    [0081] The nozzle cap can provide very low aerosol filtration if desired. Alternatively, filter portion 320 may be thicker or differently shaped to provide significant aerosol filtration, as desired.
    [0082] The first and second walls of this modality are formed from polypropylene and are injection molded. However, any suitable materials and manufacturing processes can be used. To improve retention of the nozzle cap 300 in the recess 240, additional elements may be provided. For example, a plurality of latches or barbs molded into the recess may be provided, each acting to secure the mouthpiece caps. Alternatively, one or more flutes or protrusions can be provided on the first or second wall. The ridges or protrusions can be formed from a malleable material.
    [0083] A clamping mechanism may be provided to allow manually actuated clamping of the nozzle cap after insertion into the recess. For example, a resilient O-ring or coil spring may be received in a groove in the second wall, the O-ring or spring being configured to hold a nozzle cap received in the recess. A slip collar around the O-ring or spring may be provided, wherein the slip collar is movable between a first position in which the collar does not compress the resilient O‑ring or spring, and a second position in which the collar compresses the resilient O-ring or spring.
    [0084] The mouthpiece cover and the aerosol generating device according to the invention have several advantages, especially for an electrically operated smoking system. A new mouthpiece can be used for each smoking session. This improves hygiene and allows a smoking system to be shared among users more readily. The mouthpiece cap can be made with the same dimensions, look and feel as a conventional cigarette, which is preferred by many users. Nozzle caps can be manufactured using the same materials, processes and technology as conventional cigarette filters, which are already produced, inexpensive and in large volumes. Using the same materials as conventional filters also has the advantage that these filters have been extensively tested for the conventional cigarette market and are known to be suitable for use as a mouthpiece cap.
    [0085] It should be clear that many variations are possible for the modality described with reference to Figures 1 to 4. For example, the relative lengths of the first and second wall may be different, and the length of the nozzle cap may be changed to suit user preference or aesthetics.
    [0086] In addition, the nozzle cap and its retention in an annular recess can be used with different constructions in aerosol generating system. For example, an aerosol generating device can be configured so that the cartridge is kept entirely within a main housing. In that case, the second wall, and possibly also the first wall, would be part of the main housing. Alternatively, the cartridge may include the first wall and the main housing comprises the second wall. The cartridge can even include only a part of the first or second wall or a part of both the first and second walls.
    [0087] The aerosol generating device may not include a separate cartridge and the main housing. Instead, the main housing may contain the aerosol forming substrate. In this case, the device can be rechargeable with the substrate or can be discarded when the substrate is consumed.
    [0088] The examples of the modalities described above illustrate, but do not limit. Considering the examples of embodiments discussed above, other embodiments consistent with the examples of embodiments mentioned above will now be apparent to a person of ordinary skill in the art.
    权利要求:
    Claims (7)
    [0001]
    1. Kit for an aerosol generating system comprising: an aerosol generating device (100) and a pliable, readily compressed but resilient mouthpiece cover (300), the device comprising: a housing containing or configured to receive a substrate of aerosol formation; an outlet (220) formed in the housing, wherein, when in use, aerosol generated from the aerosol forming substrate is delivered through the outlet (220); characterized in that the housing comprises a first wall (230) around the outlet (220) and a second wall (235) around the first wall (230), so that an open-ended annular recess (240) is defined between the first and second walls (230, 235), the annular recess (240) being suitable for retaining a malleable mouthpiece cover (300) to the housing; wherein the malleable nozzle cap (300) comprises a tubular section (310) configured to fit the annular recess (240) and being configured to allow aerosol delivered through the outlet (220) to pass through the nozzle cap and into from a user's mouth when in use; and wherein the aerosol generating device (100) is a smoking device and contains sufficient aerosol forming substrate for a plurality of smoking sessions, wherein the aerosol generating device (100) further comprises a clamping mechanism in the form. of a resilient O-ring or coil spring received in a groove in the second wall (235), the O-ring or coil spring being configured to hold a mouthpiece cover (300) received in the recess, and a slidable collar provided thereabout. of the O-ring or spring, which is movable between a first position, in which the collar does not compress the O-ring or coil spring, and a second position, in which the collar compresses the O-ring or coil spring to secure the pliable mouthpiece cap (300) when received in the annular recess (240), and wherein the kit comprises a plurality of mouthpiece caps (300).
    [0002]
    2. Kit according to claim 1, characterized in that the tubular section (310) of the mouthpiece cover (300) is configured to slide into the annular recess (240).
    [0003]
    3. Kit according to claim 1 or 2, characterized in that the annular recess (240) is dimensioned so that the tubular section (310) of the nozzle cap (300) is radially compressed between the first wall (230) and the second wall (235) when the mouthpiece cap is coupled to the recess.
    [0004]
    4. Kit according to any one of claims 1 to 3, characterized in that the mouthpiece cover (300) comprises a filter portion (320) connected to the tubular section (310), the filter portion (320) covering a orifice of the tubular section.
    [0005]
    5. Kit according to any one of claims 1 to 4, characterized in that the removable mouthpiece cover (300) is formed from cellulose acetate and is covered with a layer of paper.
    [0006]
    A kit for an aerosol generating system comprising: a consumable cartridge (200) for an aerosol generating system, the cartridge (200) comprising: a housing containing an aerosol forming substrate; and an outlet (220) formed in the housing, wherein, when in use, aerosol generated from the aerosol forming substrate is delivered through the outlet (220); and a plurality of pliable, readily compressed but resilient nozzle caps (300), each of the pliable nozzle caps comprising a tubular section (310) and a filter portion (320) connected to the tubular section (310), the portion a filter (320) covering an orifice of the tubular section (310); characterized in that the housing comprises a first wall (230) around the outlet (220) and a second wall (235) around the first wall (230), so that an open-ended annular recess (240) is defined between the first and second walls (230, 235), the annular recess (240) being suitable for retaining one of the plurality of malleable nozzle caps (300) to the housing, and wherein the cartridge (200) further comprises a mechanism clamping in the form of a resilient O-ring or coil spring received in a groove in the second wall (235), the O-ring or coil spring being configured to hold the nozzle cap (300) received in the recess, and a collar Slidable provided around the O-ring or spring, which is movable between a first position, in which the collar does not compress the O-ring or coil spring, and a second position, in which the collar compresses the O-ring or the coil spring to hold a malleable nozzle cap (300) when received on the r annular ecess (240).
    [0007]
    7. Kit according to claim 6, characterized in that the aerosol generating system is a system for smoking.
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    同族专利:
    公开号 | 公开日
    AU2013382371A1|2015-11-05|
    EP2967136A2|2016-01-20|
    JP2019047792A|2019-03-28|
    US10206428B2|2019-02-19|
    UA114953C2|2017-08-28|
    WO2014139609A2|2014-09-18|
    RU2661840C2|2018-07-19|
    TWI623275B|2018-05-11|
    TW201434404A|2014-09-16|
    IL240250A|2020-08-31|
    AU2013382371B2|2018-09-27|
    ZA201505548B|2016-07-27|
    PH12015501693A1|2015-10-19|
    KR20150127616A|2015-11-17|
    SG11201507442TA|2015-10-29|
    BR112015020606A8|2019-11-12|
    CA2903178A1|2014-09-18|
    US20160021933A1|2016-01-28|
    RU2015142843A3|2018-05-07|
    CN105050436A|2015-11-11|
    WO2014139609A3|2015-02-26|
    NZ712327A|2018-06-29|
    AR094334A1|2015-07-29|
    EP2967136B1|2020-07-08|
    IL240250D0|2015-09-24|
    MX368237B|2019-09-25|
    JP2016508743A|2016-03-24|
    AU2013382371A2|2015-12-03|
    CN105050436B|2021-02-02|
    MY175998A|2020-07-20|
    MX2015013049A|2016-05-31|
    KR102240569B1|2021-04-16|
    JP6649089B2|2020-02-19|
    BR112015020606A2|2017-07-18|
    HK1214926A1|2016-08-12|
    RU2015142843A|2017-04-20|
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    法律状态:
    2018-11-21| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-10-08| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-12-08| B07A| Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]|
    2021-03-30| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-06-22| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 20/12/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    EP13159544.9|2013-03-15|
    EP13159544|2013-03-15|
    PCT/EP2013/077645|WO2014139609A2|2013-03-15|2013-12-20|An aerosol-generating system with a replacable mouthpiece cover|
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