Check valve type cigarette mouthpiece

Details Check valve type cigarette mouthpiece Check valve type cigarette mouthpiece

1984-08-17

1986-04-15

Millin, V.

Tobacco

Smoke separator or treater

Interior surface causes particular flow characteristic

131349, 131365, 1312153, A24D 102, A24D 104, A24D 110, A24D 304

Patent

active

045820732

ABSTRACT:
A check valve type cigarette mouthpiece, which can be used with a non-filter cigarette or be incorporated into the filter tip portion of a filter cigarette, incorporates a valving structure which opens automatically under a slight pressure differential created by a vacuum or draw from the smoker and is otherwise closed prohibiting the passage of gases or smoke when the cigarette is not being actively smoked.

REFERENCES:
patent: 1581451 (1926-04-01), Knapp
patent: 3616802 (1971-11-01), Marinaccio

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