Linear motor with ring magnet and non-magnetizable end caps
US4243899A · kind A · utility
36Cited by
2References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 8, 1979 |
| Grant date | Jan 6, 1981 |
| Priority date | — |
| Expiry date | Mar 8, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2207/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A linear motor is provided with a coil, a plunger selectively positionable thereby, a permanent magnet concentric with the coil and plunger having oppositely polarized magnetic poles on outer and inner surfaces creating a magnetic circuit extending through the plunger, end caps of non-magnetizable material in line with the plunger, and an output shaft of non-magnetizable material extending through an end cap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.