Patent · US Expired

Electromagnetic switching device, especially contractor, with a contact bridge support lock

US6750746B2 · kind B2 · utility

1Cited by

10References

20Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Johann Bauer
Stephan Faber · Kümmersbruck, DE
Bardo Koppmann · Feldkirchen-Westerham, DE

Key dates

Filing date	Sep 17, 2002
Grant date	Jun 15, 2004
Priority date	—
Expiry date	Sep 17, 2022

Classification

Technology area (CPC H)Electricity
CPC primaryH01H9/345
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electromagnetic switching device, especially a contactor, includes a base, an arc chamber removable from the base, a contact bridge support and a spring-loaded locking element. The contact bridge support projects into the arc chamber and can be displaced in a direction of actuation. The contact bridge support can be locked by the locking element when the arc chamber is taken off. The locking element is configured as a lever that is swiveled about a swiveling axis which extends in perpendicular to the direction of actuation.

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