Tobacco – Tobacco or tobacco substitute product or component part thereof – Cigar or cigarette
Patent
1987-08-25
1990-07-03
Millin, V.
Tobacco
Tobacco or tobacco substitute product or component part thereof
Cigar or cigarette
131194, A24D 102
Patent
active
049382381
ABSTRACT:
The present invention relates to an improved wrapper for a smoking article haviing a combustible fuel element encircled by an insulating layer and a physically separate aerosol generating means as well as to smoking articles employing such wrappers. The wrapper encircles at least a portion of the insulating layer for the fuel element and comprises a permeable sheet material which during burning of the fuel provides a coherent layer to assist in controlling the amount of peripheral air to the fuel element during smoking.
Preferred smoking articles which employ the wrapper of the present invention have a short fuel element, a physically separate aerosol generating means including an aerosol forming material, an insulating material around the fuel element, a relatively long mouthend piece, and a combination of sheet materials as the wrapper comprising an innerwrap which after lighting of the fuel element burns away to a high permeability non-coherent ash and an outerwrap which upon lighting fuses to form a coherent ash which assists in controlling the amount of peripheral air to the fuel element during smoking.
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Barnes Russell D.
DiGrigoli Carmen P.
Durocher Donald F.
Kasbo Loyd G.
Conlin David G.
Millin V.
Myers Grover M.
R. J. Reynolds Tobacco Company
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