Circuit breaker having improved line strap construction
US4086460A · kind A · utility
16Cited by
4References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 17, 1977 |
| Grant date | Apr 25, 1978 |
| Priority date | — |
| Expiry date | Mar 17, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H9/383
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A longitudinally elongated, planar line strap for circuit breakers mounts on its upper surface adjacent one end a pair of transversely aligned, spaced apart main contacts. An arcing contact is mounted on a lanced-up portion of the strap joined to the strap body at a location intermediate the main contacts. An elongated arc runner is cantilever mounted to the free end of the lanced-up strap portion for extension out into an arc chute. The current in the strap flows along paths effective to motivate an arc off the main contacts and out onto the arcing contact and thence the arc runner where it is captured by the arc chute.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.