Fluid pressure operated reciprocating mechanism
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 17, 1984
Grant Date -
N/A
app pub date -
Jun 4, 1982
filing date -
Jun 4, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A piston head has opposite fluid drive surfaces and is enclosed in a cylinder housing also having opposite fluid drive surfaces. The piston head is secured to a piston rod anchored at one end to a stationary support whereby the piston head and cylinder housing produce driving movement of the cylinder housing. The cylinder housing has a work engaging arm on the exterior thereof. Fluid supply conduits lead into the piston head and open between the fluid drive surfaces. Control valves are provided between a pressured fluid supply and the piston head and include cycling controls providing advancing and retracting movement of the cylinder housing for reciprocating operation of the work engaging arm. A cycling operation is initiated by a normally closed spring return operating valve.
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