Tobacco – Tobacco users' appliance – Device used for smoking
Patent
1986-12-09
1991-02-05
Millin, V.
Tobacco
Tobacco users' appliance
Device used for smoking
131195, 131359, 131369, A24D 100, A24D 118
Patent
active
049896199
ABSTRACT:
The present invention preferably relates to a smoking article which 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 or sidestream aerosol.
The article of the present invention is able to provide the user with the sensations and benefits of cigarette smoking without the substantial combustion products produced by burning tobacco in a conventional cigarette. In addition, the article may be made virtually ashless so that the user does not have to remove any ash during use.
Preferred embodiments of the present smoking article comprise a short combustible carbonaceous fuel element, a heat stable, preferably particulate alumina, substrate bearing an aerosol forming substance, an efficient insulating means, and a relatively long mouthend piece.
The fuel element is provided with a plurality of peripheral passageways i.e., passageways on the outer surface of the fuel element and/or just beneath the surface of the fuel element, which provides heat transfer from the burning fuel element to the aerosol generating means while reducing levels of carbon monoxide in the aerosol generated and delivered to the user.
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Clearman Jack F.
Farrier Ernest G.
Furin Olivia P.
Norman Alan B.
Resce James L.
Conlin David G.
Millin V.
Myers Grover M.
R. J. Reynolds Tobacco Company
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