Limiting circuit breaker
US4952897A · kind A · utility
89Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1988 |
| Grant date | Aug 28, 1990 |
| Priority date | — |
| Expiry date | Sep 15, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H9/0072
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The limiting circuit breaker comprises a Thomson effect propelling device for opening of the contacts. The main contact bridge is securedly united to an operating rod surrounded by an annular opening coil of the propelling device. The latter comprises an opening disk which is movable in relation to the rod and an annular piston securedly united to the rod, springs being disposed between the disk and the piston, so as to return the disk to the rest position facing the coil at the end of the opening travel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.