Methods and apparatus for making prevailing torque nuts
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United States of America Patent
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Oct 22, 1985
Grant Date -
N/A
app pub date -
Dec 5, 1983
filing date -
Dec 8, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
To impart prevailing torque to a nut, it is squeezed between two jaws. The moment that the nut contacts both jaws is determined by monitoring the relative acceleration of the jaws. The displacement of the jaws at this time gives the dimension across the flats of the nut. From this is subtracted the desired degree of deformation giving a target displacement. When this has been reached and sensed, the jaws are stopped and then opened.
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