Compensating jaw assembly for power tongs
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 1, 1987
Grant Date -
N/A
app pub date -
Dec 26, 1985
filing date -
Dec 26, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pipe die linkage for power tongs has a preloaded spring between a force producing cam follower and pipe die of such strength and preload that the die serrations will be forced to adequately bite into the pipe. Bias resisted overtravel will prevent pipe crushing at high torque levels, as the cam follower is forced more toward the pipe.
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Family
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Cited Art Landscape
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