Cigarette filter

Details Cigarette filter Cigarette filter

1993-11-24

1995-03-14

Bahr, Jennifer

Tobacco

Smoke separator or treater

By adding constituent to smoke stream

131339, A24D 300

Patent

active

053969103

ABSTRACT:
A cigarette filter connected to a tobacco rod is provided with air dilution holes which extend radially into the fibrous material of the filter to a depth of about 1.0 to about 4.0 millimeters. When a smoker draws on the cigarette, air admitted into the air dilution holes flows to a central or core region of the filter and thence to the smoker's mouth. Mainstream smoke from the tobacco rod flows into the filter and is diverted to an annular region surrounding the core region.

REFERENCES:
patent: 3043314 (1962-07-01), Bartolomeo
patent: 3045680 (1962-07-01), Smith
patent: 3199515 (1965-08-01), Lowe et al.
patent: 3744496 (1973-07-01), McCarty et al.
patent: 4219030 (1980-08-01), Hall
patent: 4291711 (1981-09-01), Berger
patent: 4446878 (1984-05-01), Porenski, Jr.
patent: 4478229 (1984-10-01), Luke

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