Lock valve assembly

Details Lock valve assembly Lock valve assembly

1974-10-31

1976-08-17

Cohen, Irwin C.

Motors: expansible chamber type

With motive fluid valve

Contracting chamber exhaust valve controlled by expanding...

91443, 91445, 91449, 91452, 137 87, 137110, F15B 1108, F15B 13042, G05D 1102

Patent

active

039747425

ABSTRACT:
A lock valve assembly is provided in a hydraulic control system for a double acting hydraulic jack which is adapted to permit the desired substantially unrestricted flow of inlet fluid selectively to either end of the jack under all operating conditions and is automatically self-conditioning to either restrict when necessary or not to restrict the flow of outlet fluid from either end of the jack as may be required.

REFERENCES:
patent: 2506008 (1950-05-01), Arps
patent: 2588520 (1952-03-01), Halgren et al.
patent: 3213874 (1965-10-01), Schmiel et al.
patent: 3411521 (1968-11-01), Johnson
patent: 3434448 (1969-03-01), Woodfill

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