Control mechanism for a power tool
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United States of America Patent
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Apr 30, 2013
Grant Date -
Jul 30, 2009
app pub date -
Jan 23, 2009
filing date -
Jan 24, 2008
priority date (Note) -
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Abstract
A speed adjustment mechanism for a power tool is disclosed. The mechanism includes a support, a first toothed gear for rotation by means of an adjustment dial, and a second toothed gear rotatable by means of the first toothed gear and connected to a potentiometer which is connected to a speed control circuit. Limited movement of the first and second toothed gears relative to each other is possible to reduce transmission of impacts from the adjustment dial to the speed control circuit.
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