Filter for tobacco smoke
OwnerJoseph H. Andersoninventor
Life of this patent
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Abstract
A filter comprising kaolin fibers useful for removing deleterious materials from tobacco smoke and reducing the temperature thereof.
Claims12
A tobacco smoking article comprising, in combination, a body of divided tobacco to be burned and which upon the burning thereof produces moisture-laden smoke containing alkaloid and volatile materials, and a filter unit for said tobacco smoke comprising synthetic, inorganic, water-insoluble, anhydrous fibers consisting essentially of substantially homogeneous kaolin fibers having an alumina and silica content in the range of about 95 to 99.5 percent by weight and an average fiber diameter in the range of about 1 to 5 microns, said filter unit being effective in the filtration of substantial amounts of said alkaloid and volatile materials from the tobacco smoke passing therethrough and effectively reducing the temperature of said tobacco smoke, and said filter unit being effective in substantially smaller amounts than those of conventional filter materials.
A filter unit for tobacco smoke comprising non-toxic, synthetic, inorganic, water-insoluble, anhydrous kaolin fibers having an alumina and silica content in the range of about 95 to 99.5 percent by weight and being of a length to enable physical intermeshing of the fibers, the fibers being exposed for contact with particulates in tobacco smoke.
A filter unit for tobacco smoke comprising non-toxic, synthetic, inorganic, water-insoluble, anhydrous kaolin fibers having a combined alumina and silica content in the range of 95 to 99.5% by weight, said kaolin fibers being formed to said filter unit length from substantially homogeneous kaolin fiber material in which said kaolin fibers have an average fiber diameter of about 1 to 5 microns and an average length of about 3 to 4 inches whereby such fibers are intermeshed with each other and physically held together, and said kaolin fibers being disposed in said filter unit for direct contact with particulates in tobacco smoke.
Dependencies are inferred from the claim text.