Magnetically controlled mercury wetted switch and electrical relay incorporating such a switch
US4400671A · kind A · utility
6Cited by
5References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 6, 1981 |
| Grant date | Aug 23, 1983 |
| Priority date | — |
| Expiry date | Jan 6, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H1/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A mercury wetted switch, controlled by a magnetic field produced from a discret semiconductor encapsulating box or case, whose base has a double or so-called "common" electrode and at least one other insulated electrode. A moving plate engages in fork-like manner in the double electrode and bears against another electrode. The liquid wetting the contacts forms a liquid hinge for the plate on the double electrode. Application to electrical relays, particularly for professional equipment and telecommunications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.