Reduced pressure electrical switch
US4426560A · kind A · utility
3Cited by
11References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 13, 1980 |
| Grant date | Jan 17, 1984 |
| Priority date | — |
| Expiry date | Nov 13, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/64
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical switch for efficient, high continuous current carrying operation, with at least one movable contact for effecting current interruption. The ambient pressure within the volume defined by the electrical switch body is maintained at or is reducible during contact opening to between 10.sup.-1 to 10.sup.2 Torr to minimize contact erosion. A preferred electrical switch is a hermetically sealed, low voltage d.c., device for shunting an electrolyte cell. The sealed switch module has a reduced pressure atmosphere of inert fill gas at a pressure of from 10.sup.-1 to 10.sup.2 Torr.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.