Fast exhaust circuit for hydraulic jacks

Details Fast exhaust circuit for hydraulic jacks Fast exhaust circuit for hydraulic jacks

1974-12-09

1976-06-01

Croyle, Carlton R.

Motors: expansible chamber type

With motive fluid valve

To provide unequal inlet and exhaust flow rates to single...

91450, 91461, F15B 1104

Patent

active

039600599

ABSTRACT:
A fast exhaust circuit for hydraulic jacks includes a bypass conduit communicating a hydraulic jack with a tank, and a bypass valve disposed in the bypass conduit normally positioned for blocking fluid flow therethrough so that all fluid exhausted from the hydraulic jack passes through and is modulatably controlled by a control valve with the bypass valve being selectively positionable for returning a greater portion of the exhausted fluid directly to the tank and bypassing the control valve.

REFERENCES:
patent: 3171331 (1965-03-01), Samuel
patent: 3455209 (1969-07-01), Preston et al.
patent: 3494258 (1970-02-01), Harms et al.
patent: 3557829 (1971-01-01), Finley
patent: 3805678 (1974-04-01), Bianchetta et al.
patent: 3840049 (1974-10-01), Field, Jr.
patent: 3847060 (1974-11-01), Jasinski et al.

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