Variable dilution filter

Details Variable dilution filter Variable dilution filter

1981-10-02

1984-02-28

Millin, V.

Tobacco

Smoke separator or treater

By adding constituent to smoke stream

A24D 104, A24D 300

Patent

active

044336969

ABSTRACT:
Smoking article (10) has a filter mouthpiece (14) with a first stage filter element (18) and second stage filter element (19). First stage filter element (18) is rigidly attached to tipping paper (22). Second stage filter element (19) is free to move longitudinally in mouthpiece (14) and may be made to move axially by tapping the cigarette, thus, covering some of the ventilation holes (16) and changing the smoke to air ratio and the flavor.

REFERENCES:
patent: 3359988 (1965-04-01), Thomson
patent: 3402724 (1965-10-01), Blount et al.
patent: 3410274 (1965-02-01), Davis
patent: 3441028 (1967-03-01), Wall
patent: 3441029 (1966-06-01), Wall
patent: 3482579 (1965-02-01), Davis
patent: 3486508 (1967-02-01), Sipos
patent: 3503406 (1968-10-01), Riegel et al.
patent: 3590825 (1967-11-01), Davis
patent: 3605756 (1967-10-01), Stewart
patent: 3695274 (1970-11-01), Summers
patent: 3707975 (1971-03-01), Davis
patent: 3759268 (1970-08-01), Plourde
patent: 3789855 (1971-06-01), Norman
patent: 3800805 (1972-10-01), Horsewell et al.
patent: 3858587 (1974-02-01), Cavelli et al.

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