Mechanism comprised of ultrasonic lead screw motor
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United States of America Patent
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Mar 4, 2008
Grant Date -
Mar 10, 2005
app pub date -
Aug 13, 2004
filing date -
Sep 8, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
An optical assembly that contains an optical device movably attached to a apparatus for driving a threaded shaft assembly. The apparatus contains of a threaded shaft with an axis of rotation and, engaged therewith, a threaded nut. The assembly contains a device for subjecting the threaded nut to ultrasonic vibrations and thereby causing said the shaft to simultaneously rotate and translate in the axial direction.
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