Torque wrench system having multiple torque stations
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United States of America Patent
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Feb 13, 2018
Issued Date -
N/A
app pub date -
Feb 4, 2014
filing date -
May 2, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
An improved multi-bolt and nut torque wrench for installing and removing bolts or nuts from flanged joints or the like which includes a plurality of torque stations having a plurality of high torque wrenches for engaging the heads of the bolts or nuts during a high torque phase of removal or installation; a plurality of low-torque motors operatively engaged with the wrenches for rotating the bolts or nuts during the low torque phase of removal or installation; a source of hydraulic fluid for driving the low-torque motors during the low-torque phase, and driving the high-torque wrenches during the high torque phase; and a mechanism for switching between the two phases depending on the torque needed.
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