Clamping assembly of a knockout punch
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United States of America Patent
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Apr 4, 2017
Issued Date -
N/A
app pub date -
May 12, 2011
filing date -
May 17, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A clamping assembly includes a first jaw having a plurality of alternating grooves and lands formed thereon, a second jaw having a plurality of alternating grooves and lands formed thereon, and a spring provided between the first and second jaws. The jaws are pivotable relative to each other. The jaws are attached to a draw stud. The draw stud is formed from an elongated cylinder which has a conventional thread form formed on one end thereof and a plurality of alternating grooves and lands formed on the other end thereof. The alternating grooves and lands formed on the jaws mesh with the alternating grooves and lands formed on the draw stud to mate the jaws with the draw stud.
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