Patent · US Expired

Electrical switching device

US6054911A · kind A · utility

3Cited by

7References

2Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Reinhard Herbst · Wernberg-Köblitz, DE
Bardo Koppmann · Feldkirchen-Westerham, DE

Key dates

Filing date	Jul 20, 1998
Grant date	Apr 25, 2000
Priority date	—
Expiry date	Jul 20, 2018

Classification

Technology area (CPC H)Electricity
CPC primaryH01H50/546
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A switching device in which destructive stress on the contact carrier when short-circuit forces occur when ON is prevented. Stops on the arcing chamber limit the opening movement of the contact bridge before the contact spring is compressed to its block dimension.

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