Ultrasonic lead screw motor
US6940209B2 · kind B2 · utility
111Cited by
8References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 8, 2003 |
| Grant date | Sep 6, 2005 |
| Priority date | — |
| Expiry date | Sep 8, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/1452
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.