Smoking articles

Details Smoking articles Smoking articles

1985-09-26

1987-03-17

Millen, V.

Tobacco

Smoke separator or treater

By adding constituent to smoke stream

131339, A24D 302

Patent

active

046499423

ABSTRACT:
A smoking article mouthpiece comprises a smoke passage and a ventilation air duct, both of which extend from end-to-end of the mouthpiece. The duct is of a depth of 25% or more of the diameter of the mouthpiece. When the mouthpiece is incorporated in a smoking article such that air may enter the duct, the ratio of the velocities of air and smoke is in excess of ten. The mouthpiece may also comprise a ventilation-air collection groove which extends about the element and opens into the ventilation air duct.

REFERENCES:
patent: 4365641 (1982-12-01), Johnson
patent: 4542754 (1985-09-01), Cantrell et al.
patent: 4557281 (1985-12-01), Litzinger

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