ROTATION SPEED CONTROL DEVICE FOR AIR TOOLS AND ROTATION SPEED CONTROL METHOD THEREOF
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United States of America Patent
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N/A
Issued Date -
Dec 20, 2012
app pub date -
Jun 17, 2011
filing date -
Jun 17, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A rotation speed control device for air tools and the method thereof are disclosed. A shell base is disposed with a forward air inlet and a reverse air inlet. A back cover is connected to one side of the shell base. The back cover has a forward flow path in communications with the forward air inlet and a reverse flow path in communications with the reverse air inlet. The forward flow path has a rotation space whose one side has a pressure release hole in communications with the ambient space. A rotation speed control element having a stopping part that can close the pressure release hole is disposed in the rotation speed. The rotation speed control element rotates to control the aperture size of the pressure release hole, thereby adjusting the airflow entering the forward flow path.
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