Magnetic blow-out arc extinguishing device
US4153827A · kind A · utility
14Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 10, 1977 |
| Grant date | May 8, 1979 |
| Priority date | — |
| Expiry date | Jan 10, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2001/5827
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An arc-extinguishing device comprising two pairs of contacts having ring-shaped paths and connected electrically in series. A magnetic blow-out coil connected in parallel at one pair of contacts produces a radial magnetic field which causes rotation of the arcs along the ring-shaped paths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.