High amperage disconnect switch
US5717182A · kind A · utility
10Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1996 |
| Grant date | Feb 10, 1998 |
| Priority date | — |
| Expiry date | Jun 28, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H19/62
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A pair of fixed contacts is associated with a pair of movable contacts. All of the contacts have circular contact faces. A U-shaped stainless steel arc shield is provided adjacent each set of movable and fixed contacts. The semi-circular bight portion of the arc shield forms part of an imaginary circle having its center concentric with the centers of the contacts. Thus, the outer arcuate portions of the contacts are in constant spaced relationship with the arcuate portion of the adjacent arc shield. The actuator for the contacts provides for sequential opening of the sets of movable and fixed contacts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.