Circuit breaker shock absorber apparatus, assemblies, and methods of operation
US9478380B2 · kind B2 · utility
2Cited by
5References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 3, 2012 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Jul 3, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H71/121
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Embodiments disclose a circuit breaker shock absorber apparatus configured to absorb impact due to blow-off of one or more circuit breaker contact arms. The circuit breaker shock absorber apparatus has a base directly or indirectly coupled to a circuit breaker housing and an absorber body comprising a damping material having a tangent delta at 10% strain and 10 Hz and at room temperature of greater than about 0.45, and a durometer of less than about 60 per ASTM D2240 Type A. Circuit breaker shock absorber assemblies and methods of operating the breaker shock absorber assemblies are provided, as are other aspects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.