TOP DRIVE POWERED DIFFERENTIAL SPEED ROTATION SYSTEM AND METHOD
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United States of America Patent
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Issued Date -
Nov 2, 2017
app pub date -
Apr 27, 2017
filing date -
Apr 29, 2016
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Abstract
Certain embodiments include a system having a first grip configured to couple to a first tubular, a second grip configured to couple to a second tubular, where the first and second tubulars are connected by a threaded connection, and a gear assembly coupling the first and second grips, wherein the gear assembly has a speed ratio greater than 1.
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