Switchgear
US8916790B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 14, 2014 |
| Grant date | Dec 23, 2014 |
| Priority date | — |
| Expiry date | Feb 14, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H1/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is a switchgear including: a vacuum chamber; a fixed electrode having a fixed contact at an end thereof, the fixed contact being disposed within the vacuum chamber; a movable electrode having a movable contact at an end thereof, the movable contact being disposed within the vacuum chamber; a linkage assembly electrically connecting or disconnecting the movable electrode and the fixed electrode; an engaging coil spring; and a disengaging coil spring. The engaging coil spring and the disengaging coil spring are provided such that centers of the diametric directions thereof are substantially coaxial and at least a part of the engaging coil spring and a part of the disengaging coil spring overlap each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.