Valve for fire extinguisher

Details Valve for fire extinguisher Valve for fire extinguisher

1987-06-01

1989-04-18

Peters, Jr., Joseph F.

Valves and valve actuation

Reciprocating valve

Diverse material seal at valve interface

169 76, 169 30, 169 89, 251333, A62C 1324, A62C 2300, A62C 3900, F16K 2500

Patent

active

048220035

ABSTRACT:
A valve, particularly useful in a fire extinguisher, which utilizes a stem movable in a passageway having a head connected to the stem. The head includes a relatively hard member possessing a hard outer surface which fits snugly within the passageway. The head further includes a deformable portion adjacent the relatively hard surface of the relatively hard member. The relatively hard surface of the relatively hard portion contacts and scrapes the wall portion prior to sealing which is effected between the deformable portion and the wall of the passageway.

REFERENCES:
patent: Re31417 (1983-10-01), Huber
patent: 224133 (1880-02-01), Brazier
patent: 933863 (1909-09-01), Thompson
patent: 2185438 (1965-05-01), Smirra
patent: 2471460 (1949-05-01), Stroop
patent: 3229851 (1966-01-01), Horwitt et al.
patent: 3248021 (1966-04-01), Corsette et al.
patent: 3698427 (1972-10-01), Baranowski, Jr.
patent: 3741310 (1973-06-01), Hansen

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