Mechanism comprised of ultrasonic lead screw motor
First Claim
1. An apparatus for driving a threaded shaft assembly comprised of a threaded shaft with an axis of rotation and, engaged therewith, a threaded nut, wherein said assembly is comprised of means for subjecting said threaded nut to ultrasonic vibrations and thereby causing said threaded shaft to simultaneously rotate and translate in the axial direction through said nut, thus applying an axial force in said axial direction.
2 Assignments
0 Petitions
Accused Products
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.
113 Citations
24 Claims
- 1. An apparatus for driving a threaded shaft assembly comprised of a threaded shaft with an axis of rotation and, engaged therewith, a threaded nut, wherein said assembly is comprised of means for subjecting said threaded nut to ultrasonic vibrations and thereby causing said threaded shaft to simultaneously rotate and translate in the axial direction through said nut, thus applying an axial force in said axial direction.
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18. An apparatus for driving a threaded shaft assembly comprised of a threaded shaft with an axis of rotation and, engaged therewith, a threaded nut, wherein said threaded nut and said threaded shaft are operatively configured such that, upon exposure to ultrasonic vibrations, said threaded shift will simultaneously rotate and translate in the axial direction through said nut, thus applying an axial force in said axial direction.
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19. An apparatus for driving a threaded shaft assembly comprised of a threaded shaft with an axis of rotation and, engaged therewith, a threaded nut, wherein:
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(a) said assembly comprises means for subjecting said threaded nut to ultrasonic vibrations and thereby causing said threaded shaft to simultaneously rotate and translate in the axial direction through said nut, thus applying an axial force in said axial direction; (b) said rotation and said translation in said axial direction through said nut occurs over a distance greater than the amplitude of any single amplitude of said ultrasonic vibration. - View Dependent Claims (20, 21, 22, 23)
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Specification