Patent · US Expired

Electric compressed-gas circuit breaker

US3939317A · kind A · utility

4Cited by

2References

6Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Dieter Noack · Berlin, DE
Heiner Marin · Berlin, DE

Key dates

Filing date	Sep 12, 1974
Grant date	Feb 17, 1976
Priority date	—
Expiry date	Sep 12, 1994

Classification

Technology area (CPC H)Electricity
CPC primaryH01H33/905
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electric compressed-gas circuit breaker is equipped with a blasting device for extinguishing the arc drawn when the breaker opens. The blasting device includes a cylinder member and a piston member as well as energy storage means which, at the start of the opening motion, is released in a direction to produce an additional compression. The energy storage means is charged at the end of the breaker opening motion with the kinetic energy of the parts moved by the drive for the blasting device.

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