ELECTRIC POWER TOOL
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United States of America Patent
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Issued Date -
Feb 5, 2015
app pub date -
Jul 22, 2014
filing date -
Aug 1, 2013
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Abstract
In an electric power tool, a flywheel can be driven by a driving unit to rotate about a wheel axis to thereby impart kinetic energy to a tool body through a force transmitting portion of the flywheel. A ventilating unit is mounted to rotate with the flywheel about the wheel axis. When the flywheel is driven to rotate, cooling air is generated by rotation of the ventilating unit.
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