Ratcheting torque wrench
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United States of America Patent
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-
Mar 29, 2011
Issued Date -
N/A
app pub date -
Sep 30, 2008
filing date -
Jan 16, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A tool is provided for driving fasteners that includes a torque limiting mechanism therein. The torque limiting mechanism includes a first frictional engagement member disposed on the drive shaft for the tool that is engaged by one or more second frictional engagement members disposed on one or more sides of the first frictional member. The second frictional engagement members are biased into engagement with the first member by biasing members disposed within the handle that can be adjusted in order to provide more or less of a biasing force to control the frictional engagement of the second member with the first member and thereby control the torque limiting function of the torque limiting mechanism. In addition, a drive shaft is also engaged with a ratcheting mechanism that enables the tool to drive a fastener into a suitable substrate in only a single direction.
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