Electric motor
US5952743A · kind A · utility
30Cited by
1References
10Claims
0Family size
Inventor
Key dates
| Filing date | Mar 2, 1998 |
| Grant date | Sep 14, 1999 |
| Priority date | — |
| Expiry date | Mar 2, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K11/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A linear permanent magnet electric motor whose poles are extended by pole-pieces of high permeability material to provide the armature or moving element of the assembly. Two groups of two windings are positioned symmetrically about the nominal geometric center of each of the pole-pieces and hence nominal center of magnetic saliency. Thus, the device is capable of being a combined motor and position sensor as well as a device capable of combining linear velocity and linear position sensing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.