R.j. Reynolds Tobacco Company

John H Reynolds, Iv

Andrew J Sensabaugh, Jr

Henry T Ridings

Chandra K Banerjee

Gary R Shelar

Alan B Norman

Michael D Shannon

Ernest G Farrier

James L Resce

James L Harris

Stephen Benson Sears

David William Griffith, Jr

Dewey L Holt

The present invention relates to a smoking article which produces an aerosol that resembles tobacco smoke, but contains no more than a minimal amount of incomplete combustion or pyrolysis products. The smoking article of the present invention provides an aerosol 'smoke' 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 'smoke' has no significant mutagenic activity as measured by the Ames Test. In addition, the article may be made virtually ashless so that the user does not have to remove any ash during use. One embodiment of the present smoking article comprises a short combustible carbonaceous fuel element; a short heat stable, preferably carbonaceous substrate bearing an aerosol forming substance, and a relatively long mouthend piece. The fuel element and the substrate are arranged in a heat exchange relationship, thereby causing aerosol formation without significant degradation of the aerosol former.

Smoking article

The present invention relates to fuel elements useful in smoking articles which produce an aerosol that resembles tobacco smoke, but contains no more than a minimal amount of incomplete combustion or pyrolysis products. Preferred embodiments of the present invention comprise a short combustible carbonaceous fuel elements, usually less than about 20 mm in length, preferably from about 5 to 15 mm in length, and most preferably about 10 mm in length. The diameter of the fuel elements of the present invention generally is less than about 8 mm, preferably from about 3 to 7 mm, and most preferably from about 4 to 6 mm. Smoking articles utilizing the fuel elements of the present invention are capable of providing an aerosol 'smoke' which is chemically simple, consisting essentially of air, oxides of carbon, water, and the aerosol which carries any desired flavorants or other desired volatile materials, and trace amounts of other materials. The aerosol 'smoke' from the preferred embodiments has no significant mutagenic activity as measured by the Ames Test. In addition, the fuel element may be made to be virtually ashless so that the user does not have to remove any ash during use.

A method and apparatus for automated smoking to replicate a predetermined draw profile of a smoking article is disclosed. In preferred embodiments, the smoking apparatus is digitally controlled and includes simulated flexible lips which are closed during puff phases of a recorded draw profile and which are open during smolder phases of a recorded draw profile. The apparatus can also include an automatically acting lighter and an improved control system for a human mimic smoking machine.

Smoking machine

The present invention relates to a smoking article which produces an aerosol that resembles tobacco smoke, but contains no more than a minimal amount of incomplete combustion or pyrolysis products. Preferred embodiments of the present smoking article comprise a short combustible carbonaceous fuel element, a heat stable substrate bearing an aerosol forming substance, a heat conducting member which contacts a portion of the fuel element and the substrate, and an insulating jacket surrounding at least a portion of the fuel element. The smoking article of the present invention is capable of providing an aerosol 'smoke' which is chemically simple, consisting essentially of air, oxides of carbon, water, and the aerosol which carries any desired flavorants or other desired volatile materials, and trace amount of other materials. The aerosol 'smoke' from the preferred embodiments has no significant mutagenic activity as measured by the Ames Test. In addition, the article may be made virtually ashless so that the user does not have to remove any ash during use.

The present invention relates to a smoking article which produces an aerosol that resembles tobacco smoke, but contains no more than a minimal amount of incomplete combustion or pyrolysis products. The smoking article of the present invention provides an aerosol 'smoke' 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 'smoke' has no significant mutagenic activity as measured by the Ames Test. In addition, the article may be made virtually ashless so that the user does not have to remove any ash during use. One embodiment of the present smoking article comprises a short combustible carbonaceous fuel element; a short heat stable, preferably carbonaceous substrate bearing an aerosol forming substance, and a relatively long mouthend piece. The fuel element and the substrate are arranged in a heat exchange relationshp, thereby causing aerosol formation without significant degradation of the aerosol former.

The present invention relates to a smoking article, preferably in cigarette form, which produces an aerosol that resembles tobacco smoke. The article preferably comprises a short combustible fuel element having a density greater than 0.5 g/cc, a separate substrate bearing an aerosol forming material, a heat conducting member recessed from the lighting end of the fuel element, which preferably encloses the substrate, a resilient insulating jacket encircling at least a portion of the fuel element, and an optional tobacco jacket encircling at least a portion of the aerosol forming material.

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Winston-Salem, NC, United States of America

John H Reynolds, Iv