Welding gun cylinder with control valve
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 23, 2002
Grant Date -
Dec 13, 2001
app pub date -
Jun 28, 2001
filing date -
Jun 8, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A weld gun cylinder and piston assembly includes a common center end wall interposed between two cylinders. The common center end wall functions as a manifold with bores extending therethrough. The manifold houses two spool valves. The spool valves control the passage of pneumatic pressure through passages of the manifold to and from the cylinders to extend and retract two piston rods for controlling jaws and a weld tip on a robotic arm.
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