Compact electric safety switch
US4778961A · kind A · utility
12Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1987 |
| Grant date | Oct 18, 1988 |
| Priority date | — |
| Expiry date | Nov 16, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H9/0072
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A compact electric safety switch including a rotatably mounted double contact blade assembly. Heavy duty compression springs are positioned under the blade assembly for rapid make and break connection between opposing line and load contact stabs. A pair of contact springs directs the contact blade during transit between the line and load contact stabs and serves to increase the contact pressure between the contact blade and the contact stabs when the contact blade is inserted therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.