Ultrasonic lead screw motor
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United States of America Patent
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Sep 6, 2005
Grant Date -
Mar 10, 2005
app pub date -
Sep 8, 2003
filing date -
Sep 8, 2003
priority date (Note) -
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Abstract
An apparatus for driving a threaded shaft assembly that contains a threaded shaft with an axis of rotation and, engaged therewith, a threaded nut. Subjecting the threaded nut to ultrasonic vibrations causes the threaded shaft to simultaneously rotate and translate in the axial direction. The threaded shaft is connected to a load that applies an axial force to the threaded shaft.
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