Tobacco smoke filters

Details Tobacco smoke filters Tobacco smoke filters

1981-06-12

1984-07-24

Millin, V.

Tobacco

Tobacco users' appliance

Device used for smoking

131198A, 131336, A24D 302, A24D 304

Patent

active

044613083

ABSTRACT:
A filter for cigarette smoke is formed by a generally tubular member (10) having a primary barrier wall (24) extending across the midregion of its interior. Smoke is accelerated from the upstream chamber to the downstream chamber (50) in the filter through a small accelerating opening (26) in the midregion of that barrier. A downstream target, or barrier (28), whose surface area is no greater than the cross-sectional area of the accelerating opening is placed downstream from the opening at a distance which is preferably no greater than the diameter of the accelerating opening. Collection vanes (52-56) at the upstream end of the downstream chamber (50) are formed downstream from the barrier (24) combine with the action of the target (28) to separate liquids and semi-solids from the smoke, and to collect them, at the upstream end of the downstream chamber (50).

REFERENCES:
patent: 3323525 (1967-06-01), Miller
patent: 3636960 (1972-01-01), Blount et al.
patent: 4344444 (1982-08-01), Miura

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