Circuit breaker
US5485133A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 20, 1994 |
| Grant date | Jan 16, 1996 |
| Priority date | — |
| Expiry date | Jun 20, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H83/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit breaker has at least one pair of electrical contacts of which one contact is mounted for movement relative to the other contact between first and second positions. One of the first and second positions corresponds to the contacts being closed and the other corresponds to the contacts being open. Resilient biassing means urges the one contact into the first position so as to maintain the contacts normally in the condition corresponding thereto. A magnet (such as a solenoid acting in active or passive mode) is capable of holding one contact in the second position against the action of the resilient biassing means, but is demagnetisable to permit the one contact to return to the first position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.