Motors: expansible chamber type – With motive fluid valve – Contracting chamber exhaust valve controlled by expanding...
Patent
1995-06-07
1997-04-29
Ryznic, John E.
Motors: expansible chamber type
With motive fluid valve
Contracting chamber exhaust valve controlled by expanding...
91422, 91442, 91443, 91452, 91520, 251117, 1375133, F15B 1108, F15B 1304
Patent
active
056238614
ABSTRACT:
A pneumatic cylinder, especially for a spot-welding machine, has a sleeve valve mounted on the piston rod. The sleeve valve provides a venting valve for dumping pressure from a return chamber at the end of the forward stroke, and a progressive restrictor to close off a forward chamber and provide cushioning at the end of the return stroke.
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Trimmer David J.
Ward Allan
Meehan Thomas A.
Ryznic John E.
Savair Inc.
VanOphem John
VanOphem Remy J.
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