Circuit breaker with parallel shorting element
US4171519A · kind A · utility
5Cited by
1References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 26, 1978 |
| Grant date | Oct 16, 1979 |
| Priority date | — |
| Expiry date | May 26, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H61/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit breaker has a thermally sensitive bimetal connected across two lead-in wires in a glass envelope. An electrically conductive bypass element is in parallel with the bimetal and shorts it out. The bypass element can be removed from the circuit by melting it by means of a short duration pulse of high electric current. The bimetal contains means to prevent its ends from welding together should an arc occur when the bypass element is melted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.