Temperature/humidity controlled valve for a smoking article

Details Temperature/humidity controlled valve for a smoking article Temperature/humidity controlled valve for a smoking article

1988-03-16

1989-09-19

Millin, V.

Tobacco

Smoke separator or treater

Interior surface causes particular flow characteristic

131194, 1312151, 1312152, 1312153, A24D 304

Patent

active

048671827

ABSTRACT:
A smoking article having a valve system for closing off the flow of smoke to the user in response to an increase in temperature or humidity. The valve system includes a plastic body with a hollow valve chamber communicating with a smoke passage. A valve element is located in the chamber and is movable between a first position in which smoke from the smoking article is allowed to pass through the smoke passage and a second position in which the valve element closes the smoke passage thereby preventing smoke from passing therethrough. Expansion means are connected to the valve element and cause the valve to move between the first and second positions in response to the temperature or humidity of the smoke.

REFERENCES:
patent: 2550286 (1951-04-01), Morton
patent: 2954786 (1960-10-01), Lebert
patent: 3292635 (1966-12-01), Kolodny
patent: 3441028 (1969-04-01), Wall
patent: 3800805 (1974-04-01), Horsewell et al.
patent: 3916914 (1975-11-01), Brooks et al.
patent: 4119105 (1978-10-01), Owens, Jr.
patent: 4474192 (1984-10-01), MacLean et al.
patent: 4615344 (1986-10-01), Ringrose
patent: 4638820 (1987-01-01), Roberts et al.
patent: 4754766 (1988-07-01), Luke et al.

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