Self-adjusting pliers
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United States of America Patent
Stats
-
Nov 4, 2008
Grant Date -
Aug 16, 2007
app pub date -
Jan 24, 2007
filing date -
Jun 15, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention is directed to an improved hand tool for using one hand to grasp a workpiece between a first and a second jaw of the hand tool and adjust the force applied to the workpiece. The hand tool includes a first arm and a second arm, the second arm operably linked to the first arm so as to cause relative motion of the first and second jaws upon motion of the arms. The hand tool further includes a control arm having a first end pivotably linked to the first arm and a second end pivotably linked to the second arm at a moveable pivot location. Movement of a force adjustor located on the second arm in a first direction moves the moveable pivot location so as to increase the level of force required on the second arm to move the control arm into an overcenter lock position.
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