Hermetically sealed electromagnetic relay
US6265955A · kind A · utility
8Cited by
24References
4Claims
0Family size
Inventors
Key dates
| Filing date | Mar 2, 1998 |
| Grant date | Jul 24, 2001 |
| Priority date | — |
| Expiry date | Mar 2, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2050/025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Sealed relays intended for high-voltage or high-power switching are enclosed in a herrnetically sealed plastic housing or jacket (11) capable of long-term maintenance of either a high vacuum or a pressurized insulating gas within the relay to suppress contact arcing during switching. The impermeable plastic housing eliminates need for conventional glass or ceramic contact enclosures, and enables use of inexpensive relays (71) in demanding applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.