Variably ventilated filter cigarette

Details Variably ventilated filter cigarette Variably ventilated filter cigarette

1985-06-14

1986-06-10

Millin, Vincent

Tobacco

Smoke separator or treater

By adding constituent to smoke stream

131338, 1311982, A24D 300, A24D 104

Patent

active

045937079

ABSTRACT:
A variably ventilatable filter cigarette is provided with a filter body having a plurality of spaced circumferential, peripheral channels covered by a wrapping sheet at least a portion of which is air permeable, the wrapping sheet extending beyond the filter body to receive a cup-shaped member having an end wall with perforations alignable with the channels; the cup-shaped member is rotatable to vary the degree of registration with respect to the channels.

REFERENCES:
patent: 3359988 (1967-12-01), Thomson
patent: 3376874 (1968-04-01), Yunil Kim et al.
patent: 3428050 (1969-02-01), Kandel
patent: 3503406 (1970-03-01), Riegel et al.
patent: 3512537 (1970-05-01), Louis
patent: 4481959 (1984-11-01), Byrne

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