Automatic directional control valve

Details Automatic directional control valve Automatic directional control valve

1975-10-01

1977-05-10

Maslousky, Paul E.

Motors: expansible chamber type

Cutoff after single complete cycle

Reversal responsive to motive fluid pressure change

91318, 91337, 13762427, F15B 1115, F01L 2504

Patent

active

040221091

ABSTRACT:
A pressure responsive semi-automatic directional control valve for controlling a hydraulic cylinder. Manual movement of the valve from neutral to starting position applies pressure to one side of the cylinder. The pressure buildup at the end of this stroke causes the valve to move to return position. The pressure build up at the end of the return stroke then causes the valve to return to neutral position.
A modification causes movement of the valve back to starting position thus providing continuous repeat cycle operation of the control valve.

REFERENCES:
patent: 2480527 (1949-08-01), Wachter
patent: 3145796 (1964-08-01), Padula
patent: 3738379 (1973-06-01), Wilke

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