Work material of silver with tin and tungsten oxides for electrical contact
US4330330A · kind A · utility
5Cited by
2References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 4, 1980 |
| Grant date | May 18, 1982 |
| Priority date | — |
| Expiry date | Aug 4, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2998/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
There are needed materials based on Ag/SnO.sub.2 to replace the known Ag/CdO materials for electrical contact on switches, which replacement materials contain an additional metal oxide component, without having to take into account an undesired temperature increase in the switching device. This is attained according to the invention with a material that contains 8-20 weight % tin oxide SnO.sub.2, 0.05-5 weight % tungsten oxide, balance silver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.