Variable air dilution cigarette filter

Details Variable air dilution cigarette filter Variable air dilution cigarette filter

A - Human Necessities

24

D

131/21

A24D 3/00 (2006.01) A24D 3/04 (2006.01)

Patent

CA 1237356

VARIABLE AIR DILUTION CIGARETTE FILTER Abstract of the Disclosure 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 be- tween 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 thence through the filter rod. A tobacco rod is joined to the sleeve by tip- ping paper or the like to thereby produce a cigarette incorporating the variable air dilution cigarette filter assembly.

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