Pneumatic locking valve with manual override

Details Pneumatic locking valve with manual override Pneumatic locking valve with manual override

1987-08-10

1989-06-13

Look, Edward K.

Fluid handling

Line condition change responsive valves

Direct response valves

91420, 91445, 91447, 137901, F16K 1500, F15B 1108

Patent

active

048383066

ABSTRACT:
A locking valve assembly for use with air cylinder and in pneumatic circuits and including a locking valve for selectively locking air pressure in the air cylinder. The locking valve is pilot operated to provide for release of air pressure from the air cylinder and also includes a manual override apparatus for providing for release of the locking valve in the absence of pilot pressure.

REFERENCES:
patent: 1146850 (1915-07-01), Cullum
patent: 2585045 (1952-02-01), Schmidlin
patent: 2728564 (1955-12-01), Bracke
patent: 3004549 (1961-10-01), Temple
patent: 4072087 (1978-02-01), Mueller
patent: 4667570 (1987-05-01), Jensen et al.

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