Permanent magnet field diverted to do useful work
US4542361A · kind A · utility
6Cited by
4References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 21, 1984 |
| Grant date | Sep 17, 1985 |
| Priority date | — |
| Expiry date | May 21, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K33/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Permanent magnets are used to perform useful work. The field of a first permanent magnet is diverted by electromagnetic coils to such a low value that another opposing permanent magnet can approach the first magnet without the application of undue force. The field in the first magnet is restored to act on the second magnet so as to repel it. The force which results may be harnessed to effect reciprocal or rotary motion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.