Molded case circuit breaker operating mechanism fold-down arrangement
US4894632A · kind A · utility
11Cited by
9References
10Claims
0Family size
Inventors
Key dates
| Filing date | Nov 21, 1988 |
| Grant date | Jan 16, 1990 |
| Priority date | — |
| Expiry date | Nov 21, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H71/0214
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit breaker operating mechanism employs a multi-latch arrangement for controlling the automatic opening of the circuit breaker contacts upon predetermined overcurrent conditions. The multi-latch assembly is robotically assembled to the operating mechanism and is retained thereon by means of a retainer tab. The circuit breaker case and cover contain integrally formed steps which receive extensions formed on the operating mechanism assembly. The operating mechanism assembly becomes wedged between the circuit breaker cover and case when the cover is later fastened to the case.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.