Gripping dies for continuous coiled rod injectors and fabrication and use methods relating to same
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United States of America Patent
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Jun 21, 2016
Grant Date -
Sep 11, 2014
app pub date -
Mar 5, 2013
filing date -
Mar 5, 2013
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Abstract
Gripper dies for a continuous coiled rod injector are machined from a single, unitary, integral steel body forming both the base portion for connection to the injector drive chain and the gripping portion for engagement of the continuous coiled rod. Curved transitions are provided between ends of a gripping portion of the die and a profiled gripping face thereof, which features an arcuate surface and diverging planar surfaces extending therefrom to accommodate varying sizes of round and elliptical rod.
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