Actuator
US7506560B2 · kind B2 · utility
5Cited by
11References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 30, 2003 |
| Grant date | Mar 24, 2009 |
| Priority date | — |
| Expiry date | Oct 30, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19637
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An actuator, preferably a linear actuator, a reversible motor which drives an adjustment element via a transmission. To increase the self-clocking ability of the actuator, the actuator is equipped with a coil spring which has its one end secured to a rotating element in the actuator so that the spring is carried along in the rotation on the cylindrical part, which is static in relation thereto. When the motor is turned off, and the load on the actuator tries to displace the adjustment element, the movement of the coil spring is blocked, and the coil spring is tightened around the cylindrical part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.