Arc extinguishing chamber for low voltage power switches
US6222146A · kind A · utility
5Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 20, 1999 |
| Grant date | Apr 24, 2001 |
| Priority date | — |
| Expiry date | Oct 20, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2009/347
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An arc quenching chamber for low-voltage circuit breakers has a quenching chamber enclosure and a quenching chamber cover, which is detachably attached to the quenching chamber enclosure by fastening elements. Opposite a hollow extension the quenching chamber enclosure has a nose which may be gripped by a claw-like extension of the quenching chamber cover. Another method of fastening the quenching chamber cover involves lateral nose-like webs on the quenching chamber enclosure and projections on both sides of the quenching chamber cover to grip the noses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.