Variable air dilution cigarette filter

Details Variable air dilution cigarette filter Variable air dilution cigarette filter

1984-10-22

1986-03-18

Millin, Vincent

Tobacco

Smoke separator or treater

By adding constituent to smoke stream

1311982, A24D 304

Patent

active

045761876

ABSTRACT:
A variable air dilution cigarette filter is disclosed. A thin, generally rigid cylindrical sleeve having internal retention steps or barbs is provided with one or more air passing slots or perforations. A filter rod having a filter wrap is inserted within the cylindrical tube or sleeve and is held within the tube by the retention steps. Relative rotation between the sleeve and the filter rod varies the amount of smoke diluting air which is allowed to pass through the slots in the sleeve and then through the filter rod. A tobacco rod is joined to the sleeve by tipping paper or the like to thereby produce a cigarette incorporating the variable air dilution cigarette filter assembly.

REFERENCES:
patent: 2923647 (1960-02-01), Aghnides
patent: 3359988 (1967-12-01), Thomson

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