Vibration wave driven motor and method of producing same
US5698929A · kind A · utility
16Cited by
17References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 1993 |
| Grant date | Dec 16, 1997 |
| Priority date | — |
| Expiry date | Jun 3, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02N2/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vibration wave driven motor includes a vibration member which vibrates in response to an applied electrical signal, a rail-shaped stator having a recess formed thereon, a movable base integral with an elastic element, a pair of rollers, one of which engages the recess on the stator, and a pressing spring forcing the vibration member, the stator, and one of the rollers into contact.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.