[go: up one dir, main page]

WO2020099823A1 - Système de fourniture d'aérosol - Google Patents

Système de fourniture d'aérosol Download PDF

Info

Publication number
WO2020099823A1
WO2020099823A1 PCT/GB2019/052805 GB2019052805W WO2020099823A1 WO 2020099823 A1 WO2020099823 A1 WO 2020099823A1 GB 2019052805 W GB2019052805 W GB 2019052805W WO 2020099823 A1 WO2020099823 A1 WO 2020099823A1
Authority
WO
WIPO (PCT)
Prior art keywords
inhalation
airflow
user
airflow generator
mouthpiece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/GB2019/052805
Other languages
English (en)
Inventor
David LEADLEY
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nicoventures Trading Ltd
Original Assignee
Nicoventures Trading Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nicoventures Trading Ltd filed Critical Nicoventures Trading Ltd
Publication of WO2020099823A1 publication Critical patent/WO2020099823A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/85—Maintenance, e.g. cleaning
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/48—Fluid transfer means, e.g. pumps
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/50—Control or monitoring
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/10—Devices using liquid inhalable precursors

Definitions

  • the present invention relates to an aerosol provision system, a method for expelling aerosolised payload and an aerosol provision means.
  • Aerosol provision systems are known. Common systems use heaters to create an aerosol from a suitable medium which is then inhaled by a user. Often suitable media require significant levels of heating prior to generating an aerosol for inhalation. The aerosol generated in the system may condense inside the system and damage components.
  • the present invention is directed toward solving some of the above identified issues.
  • an aerosol provision (AP) system in accordance with claim 1.
  • an aerosol provision (AP) means in accordance with claim 14.
  • Figure l is a schematic sectional view of an aerosol provision system according to an example
  • Figure 2 is a schematic sectional view of a portion of an aerosol provision system according to an example
  • Figure 3 illustrates a method for expelling aerosolised payload from an aerosol provision system.
  • FIG. 1 illustrates a schematic view of an aerosol provision (AP) system 100.
  • the system 100 as illustrated in this example is designed to simulate a cigarette and therefore may have a substantially cylindrical shape and may be approximately the same size as a cigarette.
  • the system 100 has a body 102.
  • the system 100 has an aerosol generator 110, arranged within the body 102, operable to generate an aerosolised payload.
  • the system 100 has a mouthpiece 120 for engaging with a mouth of a user, the mouthpiece 120 providing fluid communication between an interior of the body 102 and an exterior of the body 102.
  • the system 100 has an airflow generator 130 arranged in operation to generate an airflow through at least a portion of the body 102.
  • the system 100 is arranged such that the airflow generator 130 operates at least immediately upon reduction of inhalation by the user on the mouthpiece 120 to expel some or all remaining aerosolised payload, generated during said inhalation by the user, from the AP system 100.
  • the aerosol generator 110 may be any vapour provision system, which may include any of a heater, an atomizer, a wick, a reservoir and the like.
  • the aerosol generator 110 may generate aerosol, prior to or on activation of the system 100, for inhalation by a user.
  • the aerosol generator 110 may have a reservoir of aerosolisable substances, which may include nicotine and nicotine-containing substances.
  • the mouthpiece 120 may have an outlet for allowing aerosol generated within the body 102 of the system 100 to be inhaled by the user.
  • the mouthpiece 120 may be of a form that is comfortable for a user to place into their mouth and inhale on.
  • the mouthpiece 120 may contain a filter. This may enable particulates to be removed from the aerosol prior to inhalation by a user.
  • the airflow generator 130 is shown in the example of Figure 1 to be located at a distal end of the system 100.
  • the airflow generator 130 may be located elsewhere in the system 100.
  • the airflow generator 130 enables forced expulsion of aerosol produced, but which is not then inhaled by a user.
  • the airflow generator 130 enables reduction of aerosol produced, but not inhaled (remaining aerosolised payload), subsequently condensing within the system 100. Aerosol condensing within the system 100 may condense on components within the system 100 which can reduce the lifetime of said components. As such, the airflow generator 130 increases the lifetime of the system 100.
  • “Remaining aerosolised payload” as used herein is taken to mean aerosolised payload that was generated during normal use of the system 100 but which was not inhaled due to cessation of inhalation. Activation of the airflow generator 130 may occur prior to, during, or immediately after inhalation, as described herein.
  • the airflow generator 130 operates at least immediately upon reduction of inhalation by the user on the mouthpiece 120 below a predetermined threshold level of reduction of inhalation. It will be understood that‘at least immediately’ means that a delay of 0s or threshold drop of 0% is the fastest or most sensitive possible response, but that a longer delay or threshold may be considered, and indeed may be preferable as described later herein.
  • a threshold level of reduction of inhalation at which the airflow generator 130 operates may be set, which may range from 1% to 100%.
  • the system 100 may comprise an airflow detector (e.g. a dynamic air pressure sensor, flow rate sensor or other sensor as described later herein) to identify when the threshold level of reduction of inhalation has been reached and, as such, when to activate the airflow generator 130.
  • the airflow detector may be located, for example, at the mouthpiece, as this may most directly indicate a change in inhalation by the user prior to any airflow constrictions or other influences on airflow that may reduce or delay detection.
  • the airflow detector can be placed anywhere within a normal airflow path of the AP system during inhalation.
  • Activation of the airflow generator 130 at a predetermined threshold level of reduction of inhalation may assist in preventing fluctuating activation of the airflow generator 130 during for example a prolonged use session involving a number of inhalations.
  • the threshold level being set at a greater level of reduction ensures that the use session (or vape session or smoking session) has ceased prior to activation of the airflow generator 130.
  • the predetermined threshold level of reduction of inhalation is one selected from the list consisting of: 10% reduction of inhalation; 50% reduction of inhalation; and, 100% reduction of inhalation.
  • concentration of inhalation is one selected from the list consisting of: 10% reduction of inhalation; 50% reduction of inhalation; and, 100% reduction of inhalation.
  • a reduction of 100% is equivalent to cessation of airflow through the system 100.
  • a lower reduction level (e.g. 10%) enables the airflow generator 130 to activate more promptly following generating of aerosol. As such, this reduces the amount of time the remaining aerosolised payload is present within the system 100 during which condensation may occur.
  • a higher reduction level prevents the airflow generator 130 from incorrectly or intermittently activating during a short break in a use session or during pressure fluctuations during a singular inhalation. Incorrect (and early) activation of the airflow generator 130 may be uncomfortable or concerning for a user.
  • a threshold of 100% reduction ensures that the airflow generator 130 only operates when inhalation has ceased entirely. As such, this may improve a user’s experience of the system 100.
  • a threshold of 50% represents a trade-off between these considerations, preventing over sensitivity but responding to a drop in inhalation activity rapidly and, potentially, whilst the user is in the act of ceasing inhalation.
  • thresholds of 75% and 25% represent other trade-offs favouring one or the other consideration.
  • a consistent reduction level threshold over time increases the user familiarity with the system 100, which a number of users desire.
  • the repeating nature of the system 100 in terms of activation of airflow generator in relation to the reduction of inhalation, results therefore in greater familiarity for the user and therefore an improvement in the user experience of the system 100
  • the user may be able to set the predetermined threshold level of reduction of inhalation at which operation of the airflow generator 130 occurs. The user may decide to vary the threshold until a preferred threshold is found. This improves the user experience of the system 100.
  • the airflow generator 130 may be formed of one or more rotatable propellers or helical structures (e.g. similar to an Archimedean screw) located within a, or the, airflow path of the system 100, which can be moved as a result of the inhalation of the user drawing air past it.
  • the propeller or equivalent may have sufficient inertia to continue rotation for a period after the user’s inhalation has ceased to drive it, thereby expelling aerosol from the system 100 after diminution and/or cessation of inhalation by the user.
  • Such a propeller system would be cheap to manufacture and simple to install and maintain. A lack of complex components results in a system 100 that is less likely to break and also cheaper to repair.
  • Figure 2 illustrates a sectional view of an AP system 100.
  • Figure 2 shows an arrangement similar to that shown in Figure 1.
  • Reference numerals indicating the same features as shown in Figure 1 are the same as those numerals used in Figure 1. These same features will not all be discussed in detail here.
  • the example of the system 100 shown in Figure 2 differs to that of Figure 1 in the location of the aerosol generator 110 and airflow generator 130 within the body 102 of the system 100.
  • the example shown in Figure 2 has an air aperture 104 in the body 102 of the system 100.
  • the example shown in Figure 2 also has a power source 140 contained within the body 102.
  • the power source 140 may supply electrical energy (or mechanical energy or the like) to other components in the system 100.
  • the AP system 100 of Figure 2 further comprises a power source 140 connected to the airflow generator 130. Operation of the airflow generator 130 may be initiated by the power source 140.
  • the power source 140 may not be so limited and therefore may provide more airflow. Inclusion of a power source 140 may increase the cost of such a system 100.
  • the system 100 may have a hybrid power system.
  • the user inhalation may initiate activation of the airflow generator 130, and subsequently activation may be maintained by the power source 140.
  • This arrangement utilises the energy of the user inhalation, which must occur during use of the system 100, and saves energy from the power source 140 during the power-costly initiating period of the airflow generator 130.
  • the continuation of activation of the airflow generator 130 by the power source 140 results in a longer period of activation of the airflow generator 130 than compared to when the airflow generator 130 is activated and maintained by user inhalation only.
  • the rotation of the airflow generator by the inhalation of the user may also be used as the airflow sensor, with a drop in rotation rate corresponding to a reduction in inhalation.
  • the threshold for triggering powered airflow generation may vary according to a trade-off between sensitivity and responsiveness.
  • a voltage may be generated by the rotation in a manner similar to a dynamo, and used as a proxy and hence sensor output for the airflow.
  • the airflow generator 130 comprises a flavour-generating material arranged on an outer portion of the airflow generator 130 or provided from a secondary source within the aerosol provision system 100.
  • the flavour-generating material may be entrained in airflow over the airflow generator 130, in this way the airflow generator 130 may contribute a different sensory effect to the aerosol to be inhaled by the user.
  • the airflow generator 130 is not located on a primary air flow path of the system 100 used during inhalation, so that during inhalation the flavour of the primary payload is experienced alone, before a secondary flavour is introduced by the airflow generator 130.
  • the first aerosol may be a nicotine based aerosol produced from e.g. tobacco
  • the second aerosol may be produced from e.g. menthol.
  • a user may be able to inhale a first nicotine-based aerosol and a second non-nicotine based aerosol.
  • the airflow generator 130 or more generally the AP system 100 comprises additional storage capability for absorbing at least some of the remaining aerosolised payload within the AP system 100.
  • This may be in the form of an absorptive coating on at least part of the airflow generator 130 and/or the walls of a main airflow channel within the AP system 100.
  • the system 100 may have a small area of the main channel where airflow drives condensates that may have a small opening and narrow channel back to a reservoir, encouraging return by capillary action.
  • vapour When vapour is expelled through the air aperture 104, and the reservoir is located near the air aperture 104, the vapour may be condensed and collected and returned to the reservoir to save vaporisable material.
  • additional storage capacity may be provided by a consumable element introduced to the device 100 in the form of an internal sleeve or filter.
  • This consumable element may be located near an outlet or inlet of the device 100.
  • the airflow generator 130 expels the some or all remaining aerosolised payload in a direction parallel to a direction of airflow from the interior of the body 102 to the mouthpiece 120.
  • the direction of expulsion of remaining aerosolised payload may be substantially aligned with the direction of airflow from the interior of the body 102 to the mouthpiece 120. This may enable more payload to reach the user prior to cessation of the session.
  • an airflow generator 130 may expel aerosol in the direction of the mouthpiece 120 (as above) or in an alternative or opposite direction. Expulsion through the mouthpiece 120 has the benefit of exploiting the existing direction of airflow and not introducing vapours into parts of the AP system 100 normally upstream of the aerosol generator 130. However, some users may prefer that expelled vapours are not directed towards them in this manner.
  • the body 102 comprises an outlet 104 separate to the mouthpiece 120.
  • the airflow generator 130 expels some or all remaining aerosolised payload through the outlet 104.
  • the outlet 104 may also act as an inlet for incoming air which entrains components of aerosol generated by the aerosol generator 110.
  • the AP system 100 may comprise a resilient member connected to the airflow generator 130 (which may be a rotatable propeller).
  • the resilient member may store potential energy prior to cessation of inhalation by the user. This arrangement is simple and reliable and does not require motors or power sources which, therefore, reduces the cost over other solutions.
  • the propeller may be turned as a result of the impact of passing air to be inhaled by the user. The turning of the propeller results in a twisted resilient member. This store of energy may be released once the inhalation of the user ceases to the point that the resilient member’s stored potential energy is greater than that energy supplied by the inhalation holding the propeller in place.
  • the propeller will rotate under the force of the untwisting resilient member in a motion opposite to the motion that resulted in the twisted resilient member.
  • airflow may be generated, typically in a direction opposite to that during inhalation (due to the propeller unwinding in a direction opposite to that caused by the original inhalation airflow), causing some or all remaining aerosolised payload to be expelled through the inlet 104 (or a separate outlet other than the mouthpiece, not shown).
  • the AP system 100 has a payload sensor for detecting an amount of aerosolised payload (such as an optical sensor that is partially obscured by aerosolised payload).
  • the system 100 also has an electronic power return system.
  • the payload sensor may be arranged to detect when an amount of aerosolised payload has decreased below a predetermined threshold and to subsequently signal the electronic power return system which collects excess energy of the airflow generator 130. In this way, the system 100 only activates the airflow generator 130 to sufficiently expel aerosolised payload. Once the remaining aerosolised payload in the system 100 is below a predetermined threshold, the airflow generator 130 may be deactivated.
  • the predetermined threshold may be, for example, any of 1%, 5%, 10%, 20%, 30%, 40% etc.
  • a method for expelling aerosolised payload from an aerosol provision system may be enacted, for example, with an aerosol provision system 100 of the like described above with any or all of the additional features also described above.
  • Figure 3 illustrates an example of the steps of the method 200 for expelling aerosolised payload from an aerosol provision system.
  • the method 200 includes: the step 202 of generating an aerosolised payload within an AP system, in response to activation of the AP system by inhalation by a user; the step 204 of generating an airflow using an airflow generator at least immediately upon reduction of inhalation by the user on the mouthpiece; and, the step 206 of expelling within the generated airflow some or all remaining aerosolised payload from the AP system.
  • the aerosol generating substance may comprise at least one of tobacco and glycol and may include extracts (e.g., licorice, hydrangea, Japanese white bark magnolia leaf, chamomile, fenugreek, clove, menthol, Japanese mint, aniseed, cinnamon, herb, wintergreen, cherry, berry, peach, apple, Drambuie, bourbon, scotch, whiskey, spearmint, peppermint, lavender, cardamon, celery, cascarilla, nutmeg, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, cassia, caraway, cognac, jasmine, ylang-ylang, sage, fennel, piment, ginger, anise, coriander, coffee, or a mint oil from any species of the genus Mentha), flavour enhancers, bitterness receptor site blockers, sensorial receptor site activators or stimulators, sugars and/or sugar substitutes (
  • an aerosol provision (AP) system comprising: a body; an aerosol generator, arranged within the body, operable to generate an aerosolised payload; a mouthpiece for engaging with a mouth of a user, the mouthpiece providing fluid communication between an interior of the body and an exterior of the body; an airflow generator arranged in operation to generate an airflow through at least a portion of the body, arranged such that the airflow generator operates at least immediately upon reduction of inhalation by the user on the mouthpiece to expel some or all remaining aerosolised payload, generated during said inhalation by the user, from the AP system.
  • the aerosol (or vapour) provision system may be used in a tobacco industry product, for example a non-combustible aerosol provision system.
  • the tobacco industry product comprises one or more components of a non combustible aerosol provision system, such as a heater and an aerosolizable substrate.
  • a non combustible aerosol provision system such as a heater and an aerosolizable substrate.
  • the aerosol provision system is an electronic cigarette also known as a vaping device.
  • the electronic cigarette comprises a heater, a power supply capable of supplying power to the heater, an aerosolizable substrate such as a liquid or gel, a housing and optionally a mouthpiece.
  • the aerosolizable substrate is contained in or on a substrate container.
  • the substrate container is combined with or comprises the heater.
  • the tobacco industry product is a heating product which releases one or more compounds by heating, but not burning, a substrate material.
  • the substrate material is an aerosolizable material which may be for example tobacco or other non-tobacco products, which may or may not contain nicotine.
  • the heating device product is a tobacco heating product.
  • the heating product is an electronic device.
  • the tobacco heating product comprises a heater, a power supply capable of supplying power to the heater, an aerosolizable substrate such as a solid or gel material.
  • the heating product is a non-el ectronic article.
  • the heating product comprises an aerosolizable substrate such as a solid or gel material, and a heat source which is capable of supplying heat energy to the aerosolizable substrate without any electronic means, such as by burning a combustion material, such as charcoal.
  • the heating product also comprises a filter capable of filtering the aerosol generated by heating the aerosolizable substrate.
  • the aerosolizable substrate material may comprise a vapour or aerosol generating agent or a humectant, such as glycerol, propylene glycol, triacetin or diethylene glycol.
  • a vapour or aerosol generating agent such as glycerol, propylene glycol, triacetin or diethylene glycol.
  • the tobacco industry product is a hybrid system to generate aerosol by heating, but not burning, a combination of substrate materials.
  • the substrate materials may comprise for example solid, liquid or gel which may or may not contain nicotine.
  • the hybrid system comprises a liquid or gel substrate and a solid substrate.
  • the solid substrate may be for example tobacco or other non-tobacco products, which may or may not contain nicotine.
  • the hybrid system comprises a liquid or gel substrate and tobacco.

Landscapes

  • Medicinal Preparation (AREA)

Abstract

La présente invention concerne un système de fourniture d'aérosol (AP) comprenant : un corps ; un générateur d'aérosol, disposé à l'intérieur du corps, permettant de générer une charge utile aérosolisée ; un embout buccal destiné à venir en prise avec la bouche d'un utilisateur, l'embout buccal assurant une communication fluidique entre un intérieur du corps et un extérieur du corps ; un générateur de flux d'air conçu en fonctionnement pour générer un flux d'air à travers au moins une partie du corps, disposé de sorte que le générateur de flux d'air fonctionne au moins immédiatement lors de la réduction de l'inhalation par l'utilisateur sur l'embout buccal pour expulser une partie ou la totalité de la charge utile aérosolisée restante, générée pendant ladite inhalation par l'utilisateur à partir du système AP.
PCT/GB2019/052805 2018-11-16 2019-10-04 Système de fourniture d'aérosol Ceased WO2020099823A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB1818721.1A GB201818721D0 (en) 2018-11-16 2018-11-16 Aerosol provision system
GB1818721.1 2018-11-16

Publications (1)

Publication Number Publication Date
WO2020099823A1 true WO2020099823A1 (fr) 2020-05-22

Family

ID=64740051

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2019/052805 Ceased WO2020099823A1 (fr) 2018-11-16 2019-10-04 Système de fourniture d'aérosol

Country Status (2)

Country Link
GB (1) GB201818721D0 (fr)
WO (1) WO2020099823A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104095295A (zh) * 2014-07-18 2014-10-15 云南中烟工业有限责任公司 一种利用电磁感应进行加热的烟具
WO2018069676A1 (fr) * 2016-10-11 2018-04-19 British American Tobacco (Investments) Limited Système et procédé de fourniture d'aérosol
WO2018069673A1 (fr) * 2016-10-11 2018-04-19 British American Tobacco (Investments) Limited Système et procédé de fourniture d'aérosol
CN207492085U (zh) * 2017-11-21 2018-06-15 深圳市卓力能电子有限公司 一种主动排气的电子烟雾化器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104095295A (zh) * 2014-07-18 2014-10-15 云南中烟工业有限责任公司 一种利用电磁感应进行加热的烟具
WO2018069676A1 (fr) * 2016-10-11 2018-04-19 British American Tobacco (Investments) Limited Système et procédé de fourniture d'aérosol
WO2018069673A1 (fr) * 2016-10-11 2018-04-19 British American Tobacco (Investments) Limited Système et procédé de fourniture d'aérosol
CN207492085U (zh) * 2017-11-21 2018-06-15 深圳市卓力能电子有限公司 一种主动排气的电子烟雾化器

Also Published As

Publication number Publication date
GB201818721D0 (en) 2019-01-02

Similar Documents

Publication Publication Date Title
US12471628B2 (en) Container for an aerosol provision device
KR102379102B1 (ko) 용기
AU2020204124B2 (en) Mouthpiece
AU2019220433A1 (en) Aerosol generation article
KR102613801B1 (ko) 에어로졸 가능 재료를 위한 용기
JP7542105B2 (ja) エアロゾルの発生
WO2020099823A1 (fr) Système de fourniture d'aérosol
KR102869745B1 (ko) 에어로졸 제공 시스템
EP4064916B1 (fr) Système de fourniture d'aérosol
CA3159413C (fr) Systeme de fourniture d'aerosol
US20210137164A1 (en) A power module for a modular aerosol generating device, a module for a modular aerosol generating device and a modular aerosol generating device
JP7715824B2 (ja) エアロゾル供給システム
WO2024180000A1 (fr) Dispositif de fourniture d'aérosol
CN119896354A (zh) 气溶胶输送系统

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19787050

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19787050

Country of ref document: EP

Kind code of ref document: A1