Force limiting weld head
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United States of America Patent
Stats
-
Jul 10, 1990
Grant Date -
N/A
app pub date -
Feb 22, 1989
filing date -
Feb 22, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A force limiting weld head (11) which includes a supporting structure (13), a pressure barrel (15) and an output member (17) mounted for movement on the supporting structure, a fixed electrode (19) mounted on the supporting structure, a movable electrode (21) driven by the output member, a coupling (23) for drivingly coupling the pressure barrel and the output member. The coupling includes a variable-volume chamber (89) and a piston (77) responsive to overtravel for varying the volume of the chamber.
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International Classification(s)
Cited Art Landscape
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