Circuit breaker contact assembly
US4916419A · kind A · utility
6Cited by
5References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 9, 1988 |
| Grant date | Apr 10, 1990 |
| Priority date | — |
| Expiry date | Dec 9, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H1/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit breaker having a movable upper blade with a free floating pivot end. The operating mechanism is solidly connected to the upper blade. The contact force is generated by a contact spring which exerts an upward force on the lower blade. No other resilient force acts directly upon the upper blade. As the contacts separate, the force exerted on the upper blade is virtually eliminated, reducing substantially the resistance at the pivot end of the upper blade. The load terminal and pivot end of the upper blade provide a current path parallel to that of the load side flexible connector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.