Noiseless electromagnet and a contactor using such an electromagnet
US4638279A · kind A · utility
25Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1985 |
| Grant date | Jan 20, 1987 |
| Priority date | — |
| Expiry date | Jul 19, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2050/046
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The electromagnet comprises a fixed magnetic circuit, a mobile magnetic circuit forming, with the fixed magnetic circuit, at least one air gap and a coil. The distance over which the mobile magnetic circuit travels with respect to the fixed magnetic circuit is limited by at least one working position stop determining the working position, this stop being provided with at least one working position damper.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.