Mechanism comprised of ultrasonic lead screw motor
US7339306B2 · kind B2 · utility
23Cited by
93References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 13, 2004 |
| Grant date | Mar 4, 2008 |
| Priority date | — |
| Expiry date | Dec 26, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/1452
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.