Actuating apparatus and actuator
US5646466A · kind A · utility
10Cited by
17References
2Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 8, 1994 |
| Grant date | Jul 8, 1997 |
| Priority date | — |
| Expiry date | Jul 8, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K16/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
First and second stationary driving coils are disposed about drive shaft means on which magnetized rotor means are mounted so as to exert on the drive shaft means output torques 90 degrees out of phase with each other. Coupling means connect the drive shaft means to an output shaft so as the combine the output torques. Sinusoidal driving signals for the driving coils are generated by Hall devices or other means synchronized to the drive shaft means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.