Patent · US Expired

Material for electrical contacts

US4410491A · kind A · utility

6Cited by

4References

18Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Bohm Wolfgang · Alzenau, DE
Roger Wolmer · Gelnhausen, DE
Willi Malikowski · Aschaffenburg, DE

Key dates

Filing date	Dec 15, 1981
Grant date	Oct 18, 1983
Priority date	—
Expiry date	Dec 15, 2001

Classification

Technology area (CPC H)Electricity
CPC primaryH01H1/02376
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

There is described a contact material based on silver-tin oxide and additional metal oxide having a high working life, slight welding strength and low switching temperatures. Besides silver and tin oxide it contains 0.05 to 4% of molybdenum oxide and/or germanium oxide.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.