Rocking jaw gripper for restraining tubulars
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United States of America Patent
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May 5, 2015
Issued Date -
N/A
app pub date -
Nov 22, 2011
filing date -
Nov 22, 2011
priority date (Note) -
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Abstract
A rocking jaw gripper for restraining tubulars including an arm with a rocking jaw gripper rocker jaw, a rocking jaw gripper frame connected with the arm, a locking pin connecting the rocking jaw gripper frame to the chain cylinder, a hinge pin connecting the rocking jaw gripper frame to the arm and a plate jaw fastener retaining the rocker jaw body between the top plate and the bottom plate by engaging the tail hole of the rocker jaw body. When the rocking jaw gripper is engaged, it acts to restrain the movement of a tubular during make-up and break-out.
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