Locking fluid valve

Details Locking fluid valve Locking fluid valve

1980-07-17

1981-11-03

Schwadron, Martin P.

Valves and valve actuation

Mechanical movement actuator

Cam

137351, 184 15, 222153, 251144, 251297, 251322, 251330, 251DIG1, 2771675, F16K 100, F16K 3502, F16K 3160

Patent

active

042981824

ABSTRACT:
A locking fluid valve assembly including a housing adapted for connection to a fluid reservoir such as an automobile crankcase, a valve piston member for sealing and unsealing a drain passage through the housing and a piston closure member which is held under tension against the outside wall of the housing when the valve is closed.

REFERENCES:
patent: 127883 (1872-06-01), Hotz
patent: 1764991 (1930-06-01), Siebs
patent: 1837552 (1931-12-01), Kelly
patent: 2187247 (1940-01-01), Nichols
patent: 2425779 (1947-08-01), Allen
patent: 2657705 (1953-11-01), Gerhard et al.

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