Smoking article
AssigneePhilip Morris Incorporated
InventorsCharles R. Hayward, Harry V. Lanzillotti, David E. Merrill, Edward B. Sanders, D. Bruce Losee, Jr., John R. Hearn
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Abstract
A smoking article in which a flavored aerosol is generated by heat transfer to a flavor bed from the combustion of a carbon heat source is provided wherein the carbon heat source and the flavor bed are contained within a non-combustible substantially cylindrical hollow ceramic sleeve. The article generates substantially no sidestream smoke. The transfer of heat from the heat source is accomplished by convective and radiative heat transfer.
Claims40
A smoking article having a mouth end and a distal end remote from said mouth end, said smoking article comprising:
- an active element at said distal end in fluid communication with said mouth end, said active element comprising:
- a non-combustible substantially cylindrical hollow ceramic sleeve having internal and external walls, and having a first end at said distal end and a second end closer to said mouth end,
- a substantially cylindrical carbon-containing heat source contained in said sleeve adjacent said first end, said heat source having a fluid passage substantially through the center thereof, and
- a flavor bed in said sleeve adjacent said second end thereof, in direct radiative and convective heat transfer relationship with said heat source;
- whereby:
- when said heat source is ignited and air is drawn through said smoking article, air is heated as it passes through said fluid passage, said heated air flowing through said flavor bed, releasing a flavored aerosol, and carrying it to said mouth end.
A non-combustible substantially cylindrical ceramic sleeve having internal and external walls, said sleeve is of a porous ceramic material, said sleeve circumscribing at least a portion of both a fuel element and a flavor bed, for use in a smoking article.
Dependencies are inferred from the claim text.