Patent · US Expired

Arc extinguisher with an attachment for low voltage switchgear

US6844514B2 · kind B2 · utility

3Cited by

7References

24Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Michael Bach · Kildeer, US
Detlev Schmidt · Berlin, DE
Michael Sebekow · Berlin, DE
Gunter Seidler-Stahl · Berlin, DE
Ingo Thiede · Berlin, DE
Sezai Turkmen · Berlin, DE

Key dates

Filing date	Jul 5, 2001
Grant date	Jan 18, 2005
Priority date	—
Expiry date	Jul 5, 2021

Classification

Technology area (CPC H)Electricity
CPC primaryH01H9/342
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An arc extinguisher for low voltage switchgear, switching in air, includes a universally applicable variable attachment for adjustment of the arc extinguisher chamber to meet increased demands. The attachment is in the form of a chimney-like arc extinguisher chamber extension, for increasing the volume of the arc extinguisher chamber. It represents a moulded piece with a lower outline which exactly matches the outline of the arc extinguisher chamber cover, normally located on the arc extinguisher chamber and with an upper outline, identical to the upper outline of the switchgear housing for mounting the arc extinguisher chamber cover. Any number of attachments may be used in a stacked manner.

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