Puffer type circuit interrupter with improved blast valve and permanent contacts
US5424503A · kind A · utility
4Cited by
6References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 9, 1993 |
| Grant date | Jun 13, 1995 |
| Priority date | — |
| Expiry date | Sep 9, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/91
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit-breaker includes first and second permanent contacts, a support tube for a mobile arc contact and a blast nozzle. At least one of these components is fixed via an interference fit. The blast nozzle abuts against one end of a tubular support member with an annular end flange. It bears at the opposite end against a first permanent contact end-piece which is fixed by a clamping ring to the annular flange of the support member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.