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EP0471581A1 - Smoking article - Google Patents

Smoking article Download PDF

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Publication number
EP0471581A1
EP0471581A1 EP91307543A EP91307543A EP0471581A1 EP 0471581 A1 EP0471581 A1 EP 0471581A1 EP 91307543 A EP91307543 A EP 91307543A EP 91307543 A EP91307543 A EP 91307543A EP 0471581 A1 EP0471581 A1 EP 0471581A1
Authority
EP
European Patent Office
Prior art keywords
smoking article
granular
passage
rod
tobacco
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.)
Granted
Application number
EP91307543A
Other languages
German (de)
French (fr)
Other versions
EP0471581B1 (en
Inventor
Martin Graham Duke
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.)
Rothmans International Services Ltd
Original Assignee
Rothmans International Services Ltd
Rothmans International Tobacco 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 Rothmans International Services Ltd, Rothmans International Tobacco Ltd filed Critical Rothmans International Services Ltd
Publication of EP0471581A1 publication Critical patent/EP0471581A1/en
Application granted granted Critical
Publication of EP0471581B1 publication Critical patent/EP0471581B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24DCIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00Cigars; Cigarettes
    • A24D1/04Cigars; Cigarettes with mouthpieces or filter-tips
    • A24D1/045Cigars; Cigarettes with mouthpieces or filter-tips with smoke filter means

Definitions

  • This invention relates to a smoking article which produces smoke and/or an aerosol that resembles tobacco smoke.
  • a smoking article comprises a rod of smokable material and a downstream filter unit which includes granular material containing adsorbed compounds that will generate an aerosol when hot gases are passed through it and means for producing a flow of gases from the ignited tip of the smokable material which is hot enough to activate said granular material.
  • the rod of smoking material is provided with a passage having impervious walls extending longitudinally therethrough to the filter unit.
  • the passage may have a diameter in the range of 0.5 to 5.0 mm but preferably is in the range of 1.0 to 5.00 mm. Temperatures measured at the end of the passage can reach up to 550°C, thus providing sufficient heat to release components from granular material.
  • the longitudinal passage can have a wall made from combustible material such as paper or reconstituted tobacco sheet and should be substantially impervious.
  • the granules in the tip element can be provided as a granular element adjacent the end of the said passage, and thus can be backed by a conventional filter element.
  • Granular materials such as alumina, magnesium silicate, zeolites, ceramics, activated carbon or other porous materials impregnated with selected components or compounds (e.g. nicotine, glycerol, tobacco flavours, tobacco extracts) are contained in a cavity adjacent to the end of a tobacco rod containing the longitudinal passage, and can be loose packed or in sintered form. Thus adsorbed components are desorbed when the hot gas mixture from the passage passes through the granular element of the filter unit.
  • selected components or compounds e.g. nicotine, glycerol, tobacco flavours, tobacco extracts
  • the desorbed components form an aerosol which preferably then pass through a low efficiency filter which can be made from cellulose acetate, polypropylene, paper or other similar filter material.
  • Figures 1 to 5 are longitudinal cross-sectional views through five different embodiments of smoking articles according to the invention.
  • the smoking article shown in Figure 1 comprises a cylindrical tobacco rod 1 made from conventionally processed and cut tobacco at a filling density of 150 to 300 mg cm3 wrapped in a cigarette paper 2 of porosity in the range of 4 to 150 CORESTA units but preferably 20 to 80 CORESTA units.
  • a longitudinal passage 3 extends the length of the tobacco rod with the wall of the passage 4 being substantially impervious to air and made of cigarette paper or reconstituted tobacco sheet.
  • smoke travels preferentially along the tobacco rod 1 whilst the hot gases travel along the passage 3 to a filter unit 5.
  • Hot air/gas mixtures pass through a granular element 6 and desorb the components from granules 7.
  • This filter should preferably be of very low retention so that maximum transfer is achieved from the granules to the smoker's mouth and can be made as a conventional filter from cellulose acetate, polypropylene, paper or other similar filter material.
  • the granular material can be magnesium silicate, for example Sepiolite in granular form of for example 15 - 30 mesh, but in order to ease manufacture the granules could be sintered into a rod which is then cut to appropriate size, and between 50 - 200 mg. of granules can be contained in each filter unit.
  • the overall length of the smoking article is in the range of 50 to 120 mm with an overall diameter of 5 mm to 8 mm, for example 7.8 mm.
  • the granular material can be treated with nicotine and glycerol in the range of 0.5 % to 20 % w/w and 0 % to 40 % w/w respectively which will give rise to the release of nicotine when in use.
  • This filter element which is located between the tobacco and the granular bed 6 is made of high efficiency material such as ultra-fine fibres of polypropylene or other polyolefin material and removes most of the smoke components that travel along the tobacco rod 1 preferentially.
  • the quantity of smoke formed by combustion of tobacco that reaches the smoker's mouth is substantially reduced.
  • a cavity 10 is located between the filter element 9 and the granular element 6. This allows the hot gas mixture to pass through a larger area of the granular element and helps to prevent the end 11 of the passage 3 becoming blocked with any ash that may come down the passage.
  • Figure 4 shows a fourth embodiment of the present invention in which similar reference numerals are used to indicate similar parts as in Figure 1.
  • the passage 3 extending axially throughout the length of the tobacco rod 1 is placed at the periphery thereof.
  • a fifth embodiment of the present invention is shown in Figure 5 and which includes a thermal insulation section 12 made of for, example, ceramic or other thermal insulating fibres. This prevents excessive heat loss to the surroundings at the same time keeping the outside of the smoking article cool enough to hold. If desired the thermal insulation material 12 can also be arranged to act as a filter to remove the smoke which travels along the tobacco rod.
  • the materials can be fine fibre and web materials.
  • components and flavours are adsorbed onto granular materials in the filter element.
  • air drawn through the central tube is heated by the burning coal and it is this hot air that "activates” the granular material by releasing components and flavours.
  • These vapours condense and form an aerosol which then passes through the filter section.
  • Use of the impervious tube ensures that there is no diffusion of the hot gas from the tube to the tobacco rod or of smoke into the tube.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

A smoking article comprising a rod of smokable material (1) and a downstream filter unit (5) which includes granular material (6) containing adsorbed compounds that will generate an aerosol when hot gases are passed through it and means for providing a flow of gases from the ignited tip of the smokable granular material which is hot enough to activate said granular material.

Description

  • This invention relates to a smoking article which produces smoke and/or an aerosol that resembles tobacco smoke.
  • It is well known that tobacco smoke consists of thousands of chemicals which are the result of pyrolysis and incomplete combustion of tobacco. Many smoking articles have been proposed that will reduce the amounts of these compounds whilst still maintaining an acceptable smoking article or product.
  • According to the present invention, a smoking article comprises a rod of smokable material and a downstream filter unit which includes granular material containing adsorbed compounds that will generate an aerosol when hot gases are passed through it and means for producing a flow of gases from the ignited tip of the smokable material which is hot enough to activate said granular material.
  • Preferably the rod of smoking material is provided with a passage having impervious walls extending longitudinally therethrough to the filter unit.
  • When the tobacco rod is lit, hot gases from the burning coal travel preferentially along the passage to the filter end. These hot gases pass through the granular material, thus releasing adsorbed components and forming an aerosol. The quantity of hot gases transmitted along the passage is a function of its size, the density of the smokeable material surrounding it and the permeability of any outer wrapper. The passage may have a diameter in the range of 0.5 to 5.0 mm but preferably is in the range of 1.0 to 5.00 mm. Temperatures measured at the end of the passage can reach up to 550°C, thus providing sufficient heat to release components from granular material. The longitudinal passage can have a wall made from combustible material such as paper or reconstituted tobacco sheet and should be substantially impervious.
  • The granules in the tip element can be provided as a granular element adjacent the end of the said passage, and thus can be backed by a conventional filter element.
  • Granular materials such as alumina, magnesium silicate, zeolites, ceramics, activated carbon or other porous materials impregnated with selected components or compounds (e.g. nicotine, glycerol, tobacco flavours, tobacco extracts) are contained in a cavity adjacent to the end of a tobacco rod containing the longitudinal passage, and can be loose packed or in sintered form. Thus adsorbed components are desorbed when the hot gas mixture from the passage passes through the granular element of the filter unit.
  • The desorbed components form an aerosol which preferably then pass through a low efficiency filter which can be made from cellulose acetate, polypropylene, paper or other similar filter material.
  • The invention can be performed in various ways and some embodiments will now be described by way of example and with reference to the accompanying drawings in which :
  • Figures 1 to 5 are longitudinal cross-sectional views through five different embodiments of smoking articles according to the invention.
  • The smoking article shown in Figure 1 comprises a cylindrical tobacco rod 1 made from conventionally processed and cut tobacco at a filling density of 150 to 300 mg cm³ wrapped in a cigarette paper 2 of porosity in the range of 4 to 150 CORESTA units but preferably 20 to 80 CORESTA units. A longitudinal passage 3 extends the length of the tobacco rod with the wall of the passage 4 being substantially impervious to air and made of cigarette paper or reconstituted tobacco sheet. When the end of the smoking article is lit, smoke travels preferentially along the tobacco rod 1 whilst the hot gases travel along the passage 3 to a filter unit 5. Hot air/gas mixtures pass through a granular element 6 and desorb the components from granules 7. These components form an aerosol and pass through an end filter 8 into the mouth of the smoker. This filter should preferably be of very low retention so that maximum transfer is achieved from the granules to the smoker's mouth and can be made as a conventional filter from cellulose acetate, polypropylene, paper or other similar filter material.
  • In the arrangement described above the granular material can be magnesium silicate, for example Sepiolite in granular form of for example 15 - 30 mesh, but in order to ease manufacture the granules could be sintered into a rod which is then cut to appropriate size, and between 50 - 200 mg. of granules can be contained in each filter unit.
  • Typically, the overall length of the smoking article is in the range of 50 to 120 mm with an overall diameter of 5 mm to 8 mm, for example 7.8 mm.
  • If desired the granular material can be treated with nicotine and glycerol in the range of 0.5 % to 20 % w/w and 0 % to 40 % w/w respectively which will give rise to the release of nicotine when in use.
  • In the embodiment shown in Figure 2 the same reference numerals are used to indicate similar parts to that shown in Figure 1 but this embodiment includes an additional filtration element 9. This filter element which is located between the tobacco and the granular bed 6 is made of high efficiency material such as ultra-fine fibres of polypropylene or other polyolefin material and removes most of the smoke components that travel along the tobacco rod 1 preferentially.
  • In this embodiment the quantity of smoke formed by combustion of tobacco that reaches the smoker's mouth is substantially reduced.
  • In the third embodiment, shown in Figure 3, a cavity 10 is located between the filter element 9 and the granular element 6. This allows the hot gas mixture to pass through a larger area of the granular element and helps to prevent the end 11 of the passage 3 becoming blocked with any ash that may come down the passage.
  • Figure 4 shows a fourth embodiment of the present invention in which similar reference numerals are used to indicate similar parts as in Figure 1. In this construction the passage 3 extending axially throughout the length of the tobacco rod 1 is placed at the periphery thereof.
  • In order to retain heat within the area of the granules 7 a fifth embodiment of the present invention is shown in Figure 5 and which includes a thermal insulation section 12 made of for, example, ceramic or other thermal insulating fibres. This prevents excessive heat loss to the surroundings at the same time keeping the outside of the smoking article cool enough to hold. If desired the thermal insulation material 12 can also be arranged to act as a filter to remove the smoke which travels along the tobacco rod. The materials can be fine fibre and web materials.
  • It is an object of the present invention to deliver an aerosol to the smoker with significantly reduced quantities of pyrolysis and combustion products from the tobacco. To achieve this, components and flavours are adsorbed onto granular materials in the filter element. When the cigarette is lit, air drawn through the central tube is heated by the burning coal and it is this hot air that "activates" the granular material by releasing components and flavours. These vapours condense and form an aerosol which then passes through the filter section. Use of the impervious tube ensures that there is no diffusion of the hot gas from the tube to the tobacco rod or of smoke into the tube.
  • An additional feature of these designs is the flow characteristics of the hot air and smoke when a puff is taken on the cigarette. These flow characteristics have been modelled using a simple resistor network which indicates that smoke travels preferentially along the tobacco column whilst the hot air travels along the tube. It is for this reason that the additional filter element 9 is shown in Figures 2 and 3 . It is the intention that the element is highly efficient, thus significantly reducing the quantity of smoke particles formed by the burning tobacco section which pass to the smoker. Gases passing through this route will be of low temperature and will not desborb components from the granular material.
  • In the present invention it is the hot air/gases passing along the tube that provides the activating effect on the granules. It has been shown that tobacco smoke itself at ambient temperature has no effect whatsoever on the granular material, as would be the case in Figures 2 and 3.

Claims (13)

  1. A smoking article comprising a rod of smokable material and a downstream filter unit which includes granular material containing adsorbed compounds that will generate an aerosol when hot gases are passed through it and means for providing a flow of gases from the ignited tip of the smokable material which is hot enough to activate said granular material.
  2. A smoking article as claimed in claim 1 in which the rod of smoking material is provided with a passage having impervious walls extending longitudinally therethrough to the filter unit.
  3. A smoking article as claimed in claim 2 in which the granules in said tip element are provided as a granular element adjacent the end of the said passage.
  4. A smoking article as claimed in claim 3 in which said granular element is backed by a conventional filter element.
  5. A smoking article as claimed in claim 3 or claim 4 in which a filtration element is provided between the smokable material and the granular element.
  6. A smoking article as claimed in claim 5 in which the filtration element is made from high efficiency material.
  7. A smoking article as-claimed in claim 6 in which the high efficiency material is ultra-fine fibres of polypropylene or polyolefin material.
  8. A smoking article as claimed in claims 4 to 7 in which the conventional filter element is made from a very low retention material.
  9. A smoking article as claimed in claims 3 to 8 in which the granular element is surrounded by a thermal insulation section.
  10. A smoking article as claimed in claims 2 to 8 in which said passage is substantially centrally co-axial with said tobacco rod.
  11. A smoking article as claimed in claims 2 to 8 in which said passage is located co-axially and at one side of said rod.
  12. A smoking article as claimed in claims 1 to 11 in which the granular material is alumina, magnesium silicate, zeolites, ceramics, activated carbon or other porous materials impregnated with selected components or compounds.
  13. A smoking article as claimed in claim 12 in which the selected components or compounds are nicotine, glycerol, tobacco flavours or tobacco extracts.
EP91307543A 1990-08-17 1991-08-15 Smoking article Expired - Lifetime EP0471581B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB909018131A GB9018131D0 (en) 1990-08-17 1990-08-17 Smoking article
GB9018131 1990-08-17

Publications (2)

Publication Number Publication Date
EP0471581A1 true EP0471581A1 (en) 1992-02-19
EP0471581B1 EP0471581B1 (en) 1995-12-13

Family

ID=10680856

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91307543A Expired - Lifetime EP0471581B1 (en) 1990-08-17 1991-08-15 Smoking article

Country Status (13)

Country Link
EP (1) EP0471581B1 (en)
JP (1) JP3012714B2 (en)
AU (1) AU653163B2 (en)
CA (1) CA2049364C (en)
DE (1) DE69115383T2 (en)
DK (1) DK0471581T3 (en)
ES (1) ES2082930T3 (en)
GB (1) GB9018131D0 (en)
GR (1) GR3018910T3 (en)
IE (1) IE74219B1 (en)
MY (1) MY112865A (en)
NZ (1) NZ239440A (en)
ZA (1) ZA916492B (en)

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996003060A1 (en) * 1994-07-28 1996-02-08 Lorillard Tobacco Company Hollow smokable article
US5643245A (en) * 1991-10-01 1997-07-01 The Procter & Gamble Company Absorbent article having tucked flaps
WO2007093852A2 (en) * 2005-12-29 2007-08-23 Philip Morris Products S.A. Smoking article with improved delivery profile
WO2008084333A3 (en) * 2006-12-29 2008-11-06 Philip Morris Prod Smoking article with concentric hollow core in tobacco rod and capsule containing flavorant and aerosol forming agents in the filter system
CN100559977C (en) * 2003-02-14 2009-11-18 菲利普莫里斯生产公司 Cigarette with porous heat transfer tube
US7878963B2 (en) 2006-03-28 2011-02-01 Philip Morris Usa Inc. Smoking article with a restrictor
US7987856B2 (en) 2005-12-29 2011-08-02 Philip Morris Usa Inc. Smoking article with bypass channel
US8235057B2 (en) 2007-03-09 2012-08-07 Philip Morris Usa Inc. Smoking article with open ended filter and restrictor
US8353302B2 (en) 2007-03-09 2013-01-15 Philip Morris Usa Inc. Smoking articles with restrictor and aerosol former
US8424540B2 (en) 2009-10-09 2013-04-23 Philip Morris Usa Inc. Smoking article with valved restrictor
US8424539B2 (en) 2006-08-08 2013-04-23 Philip Morris Usa Inc. Smoking article with single piece restrictor and chamber
US8434499B2 (en) 2009-10-09 2013-05-07 Philip Morris Usa Inc. Filter design for improving sensory profile of carbon filter-tipped smoking articles
US8770187B2 (en) 2008-05-06 2014-07-08 British American Tobacco (Investments) Limited Aerosol dispensing device
US8905037B2 (en) 2009-10-15 2014-12-09 Philip Morris Inc. Enhanced subjective activated carbon cigarette
WO2014132182A3 (en) * 2013-02-27 2015-01-08 Philip Morris Products, S.A. Smoking article having botanical material as flavourant
US9138016B2 (en) 2010-03-26 2015-09-22 Philip Morris Usa Inc. Smoking articles with significantly reduced gas vapor phase smoking constituents
CN107072311A (en) * 2014-11-10 2017-08-18 日本烟草产业株式会社 Non-combustion-type fragrance extractor
CN107072310A (en) * 2014-11-10 2017-08-18 日本烟草产业株式会社 Cigarette bullet and non-combustion-type fragrance extractor
EP2797449B1 (en) * 2011-12-30 2019-08-07 Philip Morris Products S.a.s. Smoking article with front-plug and aerosol-forming substrate and method
WO2020089068A1 (en) * 2018-10-29 2020-05-07 Nerudia Limited Smoking substitute consumable
US10668058B2 (en) 2007-03-30 2020-06-02 Philip Morris Products S.A. Device and method for delivery of a medicament
US20210112855A1 (en) * 2018-05-17 2021-04-22 Toa Industry Co., Ltd. Aroma cartridge
US11140916B2 (en) 2012-02-13 2021-10-12 Philip Morris Products S.A. Aerosol-generating article having an aerosol-cooling element
US11272731B2 (en) 2011-12-30 2022-03-15 Philip Morris Products S.A. Aerosol-generating article for use with an aerosol-generating device
US11278052B2 (en) 2012-06-21 2022-03-22 Philip Morris Products S.A. Smoking article for use with an internal heating element
US11571017B2 (en) 2012-05-31 2023-02-07 Philip Morris Products S.A. Flavoured rods for use in aerosol-generating articles
US11576426B2 (en) 2017-08-01 2023-02-14 British American Tobacco (Investments) Limited Modular tobacco industry product
US11582998B2 (en) 2011-12-30 2023-02-21 Philip Morris Products S.A. Smoking article with front-plug and method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002300072B2 (en) * 1998-03-03 2005-05-19 Brown & Williamson Tobacco Corporation Aerosol Delivery Smoking Article
WO2013183761A1 (en) * 2012-06-08 2013-12-12 日本たばこ産業株式会社 Flavor-suctioning implement
CN109567268B (en) * 2018-12-26 2021-10-01 广东中烟工业有限责任公司 Multilayer low-temperature cigarette and preparation method thereof

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US3713451A (en) * 1970-09-11 1973-01-30 L Bromberg Article for smoking
US4340072A (en) * 1979-11-16 1982-07-20 Imperial Group Limited Smokeable device
US4898191A (en) * 1988-12-09 1990-02-06 Brown & Williamson Tobacco Corporation Smoking device
US4917121A (en) * 1988-12-09 1990-04-17 Brown & Williamson Tobacco Corporation Smoking article

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ATE19462T1 (en) * 1981-06-10 1986-05-15 Baumgartner Papiers Sa METHOD OF FLAVORING TOBACCO SMOKE, CIGARETTE PLUG FOR CARRYING OUT THE METHOD AND USE OF THE METHOD.
US4662384A (en) * 1982-06-29 1987-05-05 British-American Tobacco Company Limited Smoking articles
US4793365A (en) * 1984-09-14 1988-12-27 R. J. Reynolds Tobacco Company Smoking article
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US4903714A (en) * 1987-08-25 1990-02-27 R. J. Reynolds Tobacco Company Smoking article with improved mouthend piece

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US3713451A (en) * 1970-09-11 1973-01-30 L Bromberg Article for smoking
US4340072A (en) * 1979-11-16 1982-07-20 Imperial Group Limited Smokeable device
US4898191A (en) * 1988-12-09 1990-02-06 Brown & Williamson Tobacco Corporation Smoking device
US4917121A (en) * 1988-12-09 1990-04-17 Brown & Williamson Tobacco Corporation Smoking article

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5643245A (en) * 1991-10-01 1997-07-01 The Procter & Gamble Company Absorbent article having tucked flaps
WO1996003060A1 (en) * 1994-07-28 1996-02-08 Lorillard Tobacco Company Hollow smokable article
CN100559977C (en) * 2003-02-14 2009-11-18 菲利普莫里斯生产公司 Cigarette with porous heat transfer tube
WO2007093852A2 (en) * 2005-12-29 2007-08-23 Philip Morris Products S.A. Smoking article with improved delivery profile
WO2007093852A3 (en) * 2005-12-29 2008-05-29 Philip Morris Prod Smoking article with improved delivery profile
US7987856B2 (en) 2005-12-29 2011-08-02 Philip Morris Usa Inc. Smoking article with bypass channel
US8240315B2 (en) * 2005-12-29 2012-08-14 Philip Morris Usa Inc. Smoking article with improved delivery profile
US9060546B2 (en) 2006-03-28 2015-06-23 Philip Morris Usa Inc. Smoking article with a restrictor
US7878963B2 (en) 2006-03-28 2011-02-01 Philip Morris Usa Inc. Smoking article with a restrictor
US8424539B2 (en) 2006-08-08 2013-04-23 Philip Morris Usa Inc. Smoking article with single piece restrictor and chamber
US8235056B2 (en) 2006-12-29 2012-08-07 Philip Morris Usa Inc. Smoking article with concentric hollow core in tobacco rod and capsule containing flavorant and aerosol forming agents in the filter system
EA016512B1 (en) * 2006-12-29 2012-05-30 Филип Моррис Продактс С.А. Smoking article with concentric hollow core in tobacco rod and capsule containing flavorant and aerosol forming agents in the filter system
KR101434703B1 (en) * 2006-12-29 2014-08-26 필립모리스 프로덕츠 에스.에이. Smoking article with concentric hollow core in tobacco rod and capsule containing flavorant and aerosol forming agents in the filter system
WO2008084333A3 (en) * 2006-12-29 2008-11-06 Philip Morris Prod Smoking article with concentric hollow core in tobacco rod and capsule containing flavorant and aerosol forming agents in the filter system
US8353302B2 (en) 2007-03-09 2013-01-15 Philip Morris Usa Inc. Smoking articles with restrictor and aerosol former
US8235057B2 (en) 2007-03-09 2012-08-07 Philip Morris Usa Inc. Smoking article with open ended filter and restrictor
US10668058B2 (en) 2007-03-30 2020-06-02 Philip Morris Products S.A. Device and method for delivery of a medicament
US9750904B2 (en) 2008-05-06 2017-09-05 Nicoventures Holdings Limited Aerosol dispensing device
US8770187B2 (en) 2008-05-06 2014-07-08 British American Tobacco (Investments) Limited Aerosol dispensing device
US8424540B2 (en) 2009-10-09 2013-04-23 Philip Morris Usa Inc. Smoking article with valved restrictor
US8434499B2 (en) 2009-10-09 2013-05-07 Philip Morris Usa Inc. Filter design for improving sensory profile of carbon filter-tipped smoking articles
US8905037B2 (en) 2009-10-15 2014-12-09 Philip Morris Inc. Enhanced subjective activated carbon cigarette
US9138016B2 (en) 2010-03-26 2015-09-22 Philip Morris Usa Inc. Smoking articles with significantly reduced gas vapor phase smoking constituents
EP2797449B1 (en) * 2011-12-30 2019-08-07 Philip Morris Products S.a.s. Smoking article with front-plug and aerosol-forming substrate and method
US11039642B2 (en) 2011-12-30 2021-06-22 Philip Morris Products S.A. Smoking article with front-plug and aerosol-forming substrate and method
US11582998B2 (en) 2011-12-30 2023-02-21 Philip Morris Products S.A. Smoking article with front-plug and method
EP3597058A1 (en) * 2011-12-30 2020-01-22 Philip Morris Products S.a.s. Smoking article with front-plug and aerosol-forming substrate and method
US11272731B2 (en) 2011-12-30 2022-03-15 Philip Morris Products S.A. Aerosol-generating article for use with an aerosol-generating device
US11140916B2 (en) 2012-02-13 2021-10-12 Philip Morris Products S.A. Aerosol-generating article having an aerosol-cooling element
US11571017B2 (en) 2012-05-31 2023-02-07 Philip Morris Products S.A. Flavoured rods for use in aerosol-generating articles
US11278052B2 (en) 2012-06-21 2022-03-22 Philip Morris Products S.A. Smoking article for use with an internal heating element
WO2014132182A3 (en) * 2013-02-27 2015-01-08 Philip Morris Products, S.A. Smoking article having botanical material as flavourant
US10653179B2 (en) 2014-11-10 2020-05-19 Japan Tobacco Inc. Cartridge and non-burning type flavor inhaler
CN107072311B (en) * 2014-11-10 2021-01-05 日本烟草产业株式会社 Non-combustion type fragrance extractor
CN107072310B (en) * 2014-11-10 2020-08-04 日本烟草产业株式会社 Cigarette cartridge and non-combustion type flavor extractor
CN107072310A (en) * 2014-11-10 2017-08-18 日本烟草产业株式会社 Cigarette bullet and non-combustion-type fragrance extractor
CN107072311A (en) * 2014-11-10 2017-08-18 日本烟草产业株式会社 Non-combustion-type fragrance extractor
US11576426B2 (en) 2017-08-01 2023-02-14 British American Tobacco (Investments) Limited Modular tobacco industry product
US20210112855A1 (en) * 2018-05-17 2021-04-22 Toa Industry Co., Ltd. Aroma cartridge
WO2020089068A1 (en) * 2018-10-29 2020-05-07 Nerudia Limited Smoking substitute consumable

Also Published As

Publication number Publication date
JP3012714B2 (en) 2000-02-28
ES2082930T3 (en) 1996-04-01
IE74219B1 (en) 1997-07-16
DE69115383D1 (en) 1996-01-25
AU8253691A (en) 1992-02-20
CA2049364A1 (en) 1992-02-18
DE69115383T2 (en) 1996-07-04
MY112865A (en) 2001-10-31
GB9018131D0 (en) 1990-10-03
CA2049364C (en) 1997-07-08
IE912890A1 (en) 1992-02-26
GR3018910T3 (en) 1996-05-31
EP0471581B1 (en) 1995-12-13
DK0471581T3 (en) 1996-03-18
JPH04229166A (en) 1992-08-18
AU653163B2 (en) 1994-09-22
ZA916492B (en) 1992-04-29
NZ239440A (en) 1994-11-25

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