Method for operating an adjusting apparatus and means for adjusting a positional device
US5804933A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 26, 1996 |
| Grant date | Sep 8, 1998 |
| Priority date | — |
| Expiry date | Nov 26, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/065
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for operating a positioning device for an adjustable device. The positioning device is mechanically actuated by a bearing connected to a pivotable armature that interacts magnetically with an electromagnet. The electromagnet is energized by current pulses generated by a computer program. The current pulses cause the air gap between the pivotable armature and the electromagnet to vary between open positions where the electromagnet is not magnetized, and a closed position where the electromagnet is magnetized. Several bearings and associated electromagnets may be arranged to operate the positioning device in one or more directions and at different torques and operating speeds for different directions of operation and different positions of adjustment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.