EP0339690B1 - Smoking article - Google Patents

Smoking article Download PDF

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Publication number
EP0339690B1
EP0339690B1 EP89110769A EP89110769A EP0339690B1 EP 0339690 B1 EP0339690 B1 EP 0339690B1 EP 89110769 A EP89110769 A EP 89110769A EP 89110769 A EP89110769 A EP 89110769A EP 0339690 B1 EP0339690 B1 EP 0339690B1
Authority
EP
European Patent Office
Prior art keywords
article according
fuel element
generating means
article
aerosol generating
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.)
Expired - Lifetime
Application number
EP89110769A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0339690A3 (en
EP0339690A2 (en
Inventor
Andrew Jackson Sensabaugh, Jr.
Henry Thomas Ridings
John Hughes Reynolds Iv
Michael David Shannon
Chandra Kumar Banerjee
Ernest Gilbert Farrier
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.)
Japan Tobacco Inc
Original Assignee
RJ Reynolds Tobacco Co
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
Priority claimed from US06/650,604 external-priority patent/US4793365A/en
Application filed by RJ Reynolds Tobacco Co filed Critical RJ Reynolds Tobacco Co
Publication of EP0339690A2 publication Critical patent/EP0339690A2/en
Publication of EP0339690A3 publication Critical patent/EP0339690A3/en
Application granted granted Critical
Publication of EP0339690B1 publication Critical patent/EP0339690B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/10—Chemical features of tobacco products or tobacco substitutes
    • A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
    • A24B15/165—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes comprising as heat source a carbon fuel or an oxidized or thermally degraded carbonaceous fuel, e.g. carbohydrates, cellulosic material
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/10—Chemical features of tobacco products or tobacco substitutes
    • A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/04—Cigars; Cigarettes with mouthpieces or filter-tips
    • A24D1/042—Cigars; Cigarettes with mouthpieces or filter-tips with mouthpieces
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/18—Selection of materials, other than tobacco, suitable for smoking
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/22—Cigarettes with integrated combustible heat sources, e.g. with carbonaceous heat sources
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F42/00—Simulated smoking devices other than electrically operated; Component parts thereof; Manufacture or testing thereof
    • A24F42/60—Constructional details

Definitions

  • the present invention relates to a smoking article having a front end and a rear end and comprising a fuel element having a lighting end, and a physically separate aerosol generating means comprising at least one aerosol forming material and being disposed between the lighting end of the fuel element and said rear end. More particularly, the present invention relates to such a smoking article which produces an aerosol that resembles tobacco smoke, and which contains no more than a minimal amount of incomplete combustion or pyrolysis products.
  • US-A-4 340 072 describes a proposed cigarette type smoking article with a rod-like fuel element having a cigarette paper overwrap and a central axial passage, an aerosol generating means defined by a chamber and a short filter tip all of which are arranged one behind another.
  • the overall length of the smoking article is 70 mm, and its diameter is 7 mm.
  • the fuel element is a moulding or extrusion of reconstituted tobacco and/or tobacco substitute, e. g. of a mixture of carbon and a binder (SCMC), and the front end of its axial passage may be closed by a plug made from the same material and serving the purpose of closing the central axial passage of the fuel element and thereby assisting even lighting of the article.
  • SCMC mixture of carbon and a binder
  • the chamber of the aerosol generating means contains inhalant material which, when contacted by hot gases produced by the burning fuel element and sucked through its axial passage and through the chamber of the aerosol generating means, purportedly forms an aerosol for inhalation by the smoker.
  • the length of the rod-like fuel element is about 73 % of the overall length of the cigaretty type smoking article and therefore about 51 mm.
  • EP-A-0 117 355 describes a proposed cigarette type smoking article having a carbon heat source with an axial passageway and a separate flavor generator.
  • the heat source (page 2, line 23 to page 7, line 14) is formed by pyrolyzing a preformed, tube-shaped ligno-cellulosic material of e. g. 90 mm or 65 mm length (see Comparative Example 1 and Example 4, respectively) under specified conditions, followed by at least one additional specified process step.
  • the purported flavor generator (page 8, lines 8 to 27) comprises a substrate material, which may be tobacco, alumina, etc., adjacent the mouth end, which is impregnated with or inherently contains at least one thermally releasable flavorant.
  • the flavor generator also may comprise a flavored, foamed core inside the heat source.
  • a conventional filter may be placed after the flavor generator.
  • the purported formation of an aerosol during use is described from page 8, line 28 to page 9, line 8.
  • the tube-shaped ligno-cellulosic material experiences a maximum dimensional shrinkage of 37,5 % (see page 12, lines 3 and 4) so that from a tube-shaped ligno-cellulosic material with a length of 65 mm a carbon heat source with a length of more than 40 mm is obtained.
  • this object is achieved by providing a smoking article as defined at the beginning with a resilient insulating member, surrounding at least a portion of the fuel element and comprising inorganic fibers and being at least 0,5 mm thick, and with an overwrap for the insulating member.
  • the inventive smoking article is capable of producing substantial quantities of aerosol, both initially and over the useful life of the product, without significant thermal degradation of the aerosol former and without the presence of substantial pyrolysis or incomplete combustion products, and preferably without substantial quantities of sidestream smoke.
  • Smoking articles in accordance with the present invention are capable of providing the user with the sensations and benefits of cigarette smoking, without burning tobacco.
  • the fuel element is less than about 30 mm in length, more preferably less than 15 mm in length, has a density of at least 0.5 g/cc, and is provided with one or more longitudinal passages.
  • the aerosol generating means includes a heat stable substrate including one or more aerosol forming substances.
  • the heat exchange relationship between the fuel and the aerosol generator is achieved by providing a heat conducting member, such as a metal foil, which efficiently conducts or transfers heat from the burning fuel element to the aerosol generating means. This heat conducting member preferably contacts the fuel element and the aerosol generating means around at least a portion of their peripheral surfaces.
  • At least a part of the fuel element is provided with a peripheral insulating member, such as a jacket of insulating fibers, the jacket being resilient and at least 0.5 mm thick, which reduces radial heat loss and assists in retaining and directing heat from the fuel element toward the aerosol generating means.
  • the insulating member preferably overwraps at least part of the fuel element, and advantageously at least part of the aerosol generating means.
  • the hot, burning fire cone is always close to the aerosol generating means, which maximizes heat transfer thereto and maximizes the resultant production of aerosol, especially in embodiments which are provided with a heat conducting member.
  • the preferred use of a relatively short, low mass substrate or carrier as the aerosol generating means, in close proximity to the short fuel element, also increases aerosol production by minimizing the heat sink effect of the substrate. Because the aerosol forming substance is physically separate from the fuel element, it is exposed to substantially lower temperatures than are present in the burning fire cone, thereby minimizing the possibility of thermal degradation of the aerosol former.
  • the especially preferred use of a carbonaceous fuel element which is substantially free of volatile organic material eliminates the presence of substantial pyrolysis or incomplete combustion products and eliminates the generation of substantial sidestream smoke.
  • the smoking article of the present invention normally is provided with a mouthend piece including means, such as a longitudinal passage, for delivering the volatile material produced by the aerosol generating means to the user.
  • a mouthend piece including means, such as a longitudinal passage, for delivering the volatile material produced by the aerosol generating means to the user.
  • the article has the same overall dimensions as a conventional cigarette, and as a result, the mouthend piece and the aerosol delivery means usually extend over more than half the length of the article.
  • the fuel element and the aerosol generating means may be produced without a built-in mouthend piece or aerosol delivery means, for use with a separate, disposable or reusable mouthend piece.
  • the smoking article of the present invention also may include a charge or plug of tobacco which may be used to add a tobacco flavor to the aerosol.
  • the tobacco is placed at the mouth end of the aerosol generating means, or it may be mixed with the carrier for the aerosol forming substance.
  • Flavoring agents also may be incorporated into the article to flavor the aerosol delivered to the user.
  • Preferred embodiments of the invention are capable of delivering at least 0.6 mg of aerosol, measured as wet total particulate matter, in the first 3 puffs, when smoked under FTC smoking conditions.
  • FTC smoking conditions consist of two seconds of puffing (35 ml total volume) separated by 58 seconds of smolder).
  • More preferred embodiments of the invention are capable of delivering 1.5 mg or more of aerosol in the first 3 puffs.
  • embodiments of the invention are capable of delivering 3 mg or more of aerosol in the first 3 puffs when smoked under FTC smoking conditions.
  • preferred embodiments of the invention deliver an average of at least about 0.8 mg of wet total particulate matter per puff for at least about 6 puffs, preferably at least about 10 puffs, under FTC smoking conditions.
  • the smoking article of the present invention also is capable of providing an aerosol which is chemically simple, consisting essentially of oxides of carbon, air, water, and the aerosol which carries any desired flavorants or other desired volatile materials, and trace amounts of other materials.
  • the aerosol preferably has no significant mutagenic activity according to the Ames test discussed hereinafter.
  • the article may be made virtually ashless so that the user does not have to remove any ash during use.
  • aerosol is defined to include vapors, gases, particles, and the like, both visible and invisible, and especially those components perceived by the user to be “smoke-like,” generated by action of the heat from the burning fuel element upon substances contained within the aerosol generating means, or elsewhere in the article.
  • aerosol also includes volatile flavoring agents and/or pharmacologically or physiologically active agents, irrespective of whether they produce a visible aerosol.
  • conductive heat exchange relationship is defined as a physical arrangement of the aerosol generating means and the fuel element whereby heat is transferred by conduction from the burning fuel element to the aerosol generating means substantially throughout the burning period of the fuel element.
  • Conductive heat exchange relationships can be achieved by locating the aerosol generating means in contact with the fuel element and in close proximity to the burning portion of the fuel element, and/or by utilizing a conductive member to carry heat from the burning fuel to the aerosol generating means. Preferably both methods of providing conductive heat transfer are used.
  • carbonaceous means primarily comprising carbon
  • the term "insulating means" applies to all materials which act primarily as insulators. Preferably, these materials do not burn during use, but they may include slow burning carbons and like materials, as well as materials which fuse during use, such as low temperature grades of glass fibers.
  • the insulators have a thermal conductivity in g-cal/(sec) (cm2)(°C/cm) , of less than about 0.05, preferably less than about 0.02, most preferably less than about 0.005. See, Hackh's Chemical Dictionary , 34 (4th ed., 1969) and Lange's Handbook of Chemistry , 10, 272-274 (11th ed., 1973).
  • a preferred embodiment of the inventive article comprises a heat conducting member which contacts both the fuel element and the aerosol generator means.
  • the heat conducting member is metallic. It is then proposed to use as said metallic member a metallic foil which encompasses at least a portion of both the fuel element and the aerosol generator means.
  • a metallic member which encloses a substrate bearing the aerosol forming material.
  • the metallic member is a metallic rod embedded within at least a portion of both the fuel element and the aerosol generator means.
  • the aerosol generating means may be advantageous to have the aerosol generating means at least partially contained within a cavity in the fuel element.
  • the aerosol generating means comprises a porous, nonparticulate substrate, having a longitudinal passageway at least partially therethrough.
  • the aerosol generating means contains a substrate loaded with from about 35 mg to 85 mg of aerosol former.
  • at least about 15 weight percent of the aerosol former is delivered as wet total particulate matter under FTC smoking conditions.
  • a preferred embodiment of the inventive article comprises a charge of tobacco located between the mouth end of the fuel element and the mouth end of the article.
  • Preferred embodiments of the inventive article are designed such that the fuel element produces substantially no visible sidestream smoke during smolder.
  • a preferred embodiment of an elongate inventive smoking article comprises a fuel element less than 30 mm in length, a physically separate aerosol generating means including a carrier bearing an aerosol forming material, means for conducting heat from the fuel element to the aerosol generating means, and an insulating member which surrounds at least a portion of the fuel element.
  • the heat conducting means comprises a heat conducting member which contacts both the fuel element and the aerosol generating means, and more advantageously the heat conducting member encloses the carrier for the aerosol forming material.
  • Figures 1 and 2 are longitudinal views of two embodiments of the invention.
  • the fuel element 10 may be an element of "blowpipe” charcoal, i. e. carbonized wood, a pressed or extruded carbon rod or plug, or an other carbonaceous fuel element, and it is provided with one or several longitudinally extending holes 16.
  • the aerosol generating means 30 has a thermally stable conductive carbonaceous substrate, such as a plug of porous carbon, which is impregnated with an aerosol forming substance or substances.
  • This substrate may be provided with an optional axial passageway.
  • the lighting end 11 of the fuel element 10 may be tapered to improve lightability.
  • inventions shown in Figures 1 and 2 include a nonburning insulating jacket 86 around fuel element 10 to insulate and concentrate the heat in the fuel element. These embodiments also help to reduce any fire causing potential of the burning fire cone.
  • both fuel element 10 and substrate 30 are located within an annular jacket or tube 86 of insulating fibers, such as ceramic (e.g., glass) fibers. Nonburning carbon or graphite fibers may be used in place of ceramic fibers.
  • Fuel element 10 is preferably an extruded carbon plug having a hole 16. In the illustrated embodiment, the lighting end 11 extends slightly beyond the edge of jacket 86 for ease of lighting.
  • Substrate 30 is a solid porous carbon material, although other types of substrates may be used. The substrate and the rear portion of the fuel element are surrounded by a piece of aluminum foil 87.
  • this jacketed fuel/substrate unit is coupled to a mouthend piece, such as the elongated cellulose acetate tube 40 shown in the drawing, with an overwrap of conventional cigarette paper 46.
  • the jacket 86 extends to the mouth end of substrate 30.
  • the tube 40 also forms an aerosol delivery passage 26 between the aerosol generating means 30 and the mouth end 15 of the article.
  • the article may include an optional mass or plug of tobacco to contribute flavor to the aerosol.
  • This tobacco charge may be placed at the mouth end of the aerosol generating means 30, or it may be placed in passage 26 at a location spaced from the aerosol generating means 30.
  • an aluminum macrocapsule 52 is used to enclose a granular substrate 54 and tobacco 56.
  • This macrocapsule is preferably positioned entirely within the insulator jacket 86.
  • the lighting end 11 of fuel element 10 does not protrude beyond the forward end of jacket 86.
  • the macrocapsule and the rear portion of the fuel element are surrounded by a piece of aluminum foil.
  • the granular substrate 54 may be a granular, thermally stable carbon.
  • the capsule 52 is crimped at its ends to enclose the material 54, 56 and to inhibit migration of the aerosol former.
  • the crimped end at the fuel end preferably abuts the rear end of the fuel element to provide for conductive heat transfer.
  • a void spaced formed by the front end of the capsule also helps to inhibit migration of the aerosol former to the fuel. Longitudinal passageways are provided in the crimped ends to permit the passage of air and the aerosol forming substance.
  • Capsule 52 and fuel element 10 may be united by a conventional cigarette paper, a perforated ceramic paper, or a foil strip. If cigarette paper is used, a strip near the rear end of the fuel element should be printed or treated with sodium silicate or other known materials which cause the paper to extinguish.
  • carbonaceous fuel elements which require the addition of an oxidizing agent to render them ignitable by a cigarette lighter are within the scope of this invention, as are carbonaceous materials which require the use of a glow retardant or other type of combustion modifying agent.
  • combustion modifying agents are disclosed in many patents and publications and are known to those of ordinary skill in the art.
  • the aerosol generating means used in practicing the invention is physically separate from the fuel element.
  • physically separate it is meant that the substrate, container or chamber which contains the aerosol forming materials is not mixed with, or a part of, the burning fuel element.
  • this arrangement helps reduce or eliminate thermal degradation of the aerosol forming substance and the presence of sidestream smoke.
  • the aerosol generating means is in a conductive heat exchange relationship with the fuel element, and preferably abuts or is adjacent to the fuel element.
  • the preferred aerosol forming substances are polyhydric alcohols, or mixtures of polyhydric alcohols.
  • Especially preferred aerosol formers are selected from glycerin, propylene glycol, triethylene glycol, or mixtures thereof.
  • the smoking article of the present invention also may include a charge or plug of tobacco which may be used to add a tobacco flavor to the aerosol.
  • the tobacco is placed at the mouth end of the aerosol generating means, or it may be mixed with the carrier for the aerosol forming substance.
  • Flavoring agents also may be incorporated into the article to flavor the aerosol delivered to the user.
  • insulating materials include ceramic fibers, such as glass fibers.
  • Two especially preferred glass fibers are available from the Manning Paper Company of Troy, New York, under the designations, Manniglas 1000 and Manniglas 1200.
  • the insulating fiber is wrapped over at least a portion of the fuel element and any other desired portion of the article, to a final diameter of from about 7 to 8 mm.
  • the preferred thickness of the insulating layer is from about 0.5 mm to 2.5 mm, preferably, from about 1 mm to 2 mm.
  • glass fiber materials having a low softening point e.g., below about 650°C, are preferred.
  • the aerosol produced by the preferred articles of the present invention is chemically simple, consisting essentially of air, oxides of carbon, the aerosol which carries any desired flavorants or other desired volatile materials, water, and trace amounts of other materials.
  • the wet total particulate matter (WTPM) produced by the preferred articles of this invention has no mutagenic activity as measured by the Ames test, i.e., there is no significant dose response relationship between the WTPM of the present invention and the number of revertants occurring in standard test microorganisms exposed to such products. According to the proponents of the Ames test, a significant dose dependent response indicates the presence of mutagenic materials in the products tested. See Ames et al ., Mut . Res. , 31:347-364 (1975); Nagas et al ., Mut . Res. , 42:335 (1977).

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Health & Medical Sciences (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Manufacture Of Tobacco Products (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Seasonings (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Materials For Medical Uses (AREA)
  • Seal Device For Vehicle (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Saccharide Compounds (AREA)
  • Compounds Of Unknown Constitution (AREA)
EP89110769A 1984-09-14 1985-09-11 Smoking article Expired - Lifetime EP0339690B1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US650604 1984-09-14
US06/650,604 US4793365A (en) 1984-09-14 1984-09-14 Smoking article
US68453784A 1984-12-21 1984-12-21
US684537 1984-12-21
EP85111467A EP0174645A3 (en) 1984-09-14 1985-09-11 Smoking article

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP85111467.8 Division 1985-09-11

Publications (3)

Publication Number Publication Date
EP0339690A2 EP0339690A2 (en) 1989-11-02
EP0339690A3 EP0339690A3 (en) 1990-03-28
EP0339690B1 true EP0339690B1 (en) 1994-08-31

Family

ID=27095906

Family Applications (7)

Application Number Title Priority Date Filing Date
EP89110766A Expired - Lifetime EP0339689B1 (en) 1984-09-14 1985-09-11 Smoking article
EP85111467A Withdrawn EP0174645A3 (en) 1984-09-14 1985-09-11 Smoking article
EP89110768A Expired - Lifetime EP0336458B1 (en) 1984-09-14 1985-09-11 Smoking article
EP89110771A Expired - Lifetime EP0337508B1 (en) 1984-09-14 1985-09-11 A carbonaceous fuel element for a smoking article
EP89110769A Expired - Lifetime EP0339690B1 (en) 1984-09-14 1985-09-11 Smoking article
EP89110764A Expired - Lifetime EP0337506B1 (en) 1984-09-14 1985-09-11 Smoking article
EP19890110765 Withdrawn EP0337507A3 (en) 1984-09-14 1985-09-11 Method of preparing a fuel element for a smoking article and smoking article havin a fuel element produced by this method

Family Applications Before (4)

Application Number Title Priority Date Filing Date
EP89110766A Expired - Lifetime EP0339689B1 (en) 1984-09-14 1985-09-11 Smoking article
EP85111467A Withdrawn EP0174645A3 (en) 1984-09-14 1985-09-11 Smoking article
EP89110768A Expired - Lifetime EP0336458B1 (en) 1984-09-14 1985-09-11 Smoking article
EP89110771A Expired - Lifetime EP0337508B1 (en) 1984-09-14 1985-09-11 A carbonaceous fuel element for a smoking article

Family Applications After (2)

Application Number Title Priority Date Filing Date
EP89110764A Expired - Lifetime EP0337506B1 (en) 1984-09-14 1985-09-11 Smoking article
EP19890110765 Withdrawn EP0337507A3 (en) 1984-09-14 1985-09-11 Method of preparing a fuel element for a smoking article and smoking article havin a fuel element produced by this method

Country Status (32)

Country Link
EP (7) EP0339689B1 (no)
JP (3) JPH0390162A (no)
KR (1) KR910008187B1 (no)
AT (5) ATE126677T1 (no)
AU (2) AU595483B2 (no)
BG (2) BG46596A3 (no)
BR (1) BR8504453A (no)
DE (5) DE3587920T2 (no)
DK (3) DK166560B1 (no)
EG (1) EG16866A (no)
ES (3) ES296360Y (no)
FI (4) FI78228C (no)
GR (1) GR852205B (no)
HK (5) HK20095A (no)
HR (1) HRP950147B1 (no)
HU (1) HU202390B (no)
IE (5) IE79075B1 (no)
IL (1) IL76195A (no)
IN (1) IN164988B (no)
MA (1) MA20525A1 (no)
MT (1) MTP969B (no)
MX (3) MX162549A (no)
MY (1) MY100640A (no)
NO (3) NO169814C (no)
OA (1) OA08160A (no)
PL (1) PL154008B1 (no)
PT (1) PT81127B (no)
RO (1) RO93669A (no)
SG (2) SG23620G (no)
SI (1) SI8511441A8 (no)
YU (1) YU43994B (no)
ZW (1) ZW14685A1 (no)

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* Cited by examiner, † Cited by third party
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US4800903A (en) * 1985-05-24 1989-01-31 Ray Jon P Nicotine dispenser with polymeric reservoir of nicotine
US4938238A (en) * 1985-08-26 1990-07-03 R. J. Reynolds Tobacco Company Smoking article with improved wrapper
IN166122B (no) * 1985-08-26 1990-03-17 Reynolds Tobacco Co R
US4989619A (en) * 1985-08-26 1991-02-05 R. J. Reynolds Tobacco Company Smoking article with improved fuel element
US5076297A (en) * 1986-03-14 1991-12-31 R. J. Reynolds Tobacco Company Method for preparing carbon fuel for smoking articles and product produced thereby
US4708151A (en) * 1986-03-14 1987-11-24 R. J. Reynolds Tobacco Company Pipe with replaceable cartridge
US4732168A (en) * 1986-05-15 1988-03-22 R. J. Reynolds Tobacco Company Smoking article employing heat conductive fingers
US4771795A (en) * 1986-05-15 1988-09-20 R. J. Reynolds Tobacco Company Smoking article with dual burn rate fuel element
US4827950A (en) * 1986-07-28 1989-05-09 R. J. Reynolds Tobacco Company Method for modifying a substrate material for use with smoking articles and product produced thereby
GB8622606D0 (en) * 1986-09-19 1986-10-22 Imp Tobacco Ltd Smoking article
US4858630A (en) * 1986-12-08 1989-08-22 R. J. Reynolds Tobacco Company Smoking article with improved aerosol forming substrate
US4765348A (en) * 1986-12-12 1988-08-23 Brown & Williamson Tobacco Corporation Non-combustible simulated cigarette device
IL84516A0 (en) * 1986-12-12 1988-04-29 Reynolds Tobacco Co R Smoking articles comprising impact modifying agents
US4819665A (en) * 1987-01-23 1989-04-11 R. J. Reynolds Tobacco Company Aerosol delivery article
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DE3587951D1 (de) 1995-01-12
NO902097L (no) 1986-03-17
DK22691A (da) 1991-02-11
DE3587920T2 (de) 1995-03-16
DE3588051T2 (de) 1996-02-22
HK40896A (en) 1996-03-15
EP0339689A3 (en) 1990-03-14
AU623260B2 (en) 1992-05-07
FI83382B (fi) 1991-03-28
EP0339690A3 (en) 1990-03-28
EP0336458A2 (en) 1989-10-11
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EP0337506A3 (en) 1990-03-21
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EP0337508A3 (en) 1990-03-21
IE940574L (en) 1986-03-14
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IE950598L (en) 1986-03-14
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HK63095A (en) 1995-05-05
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Effective date: 20050911