EP 0002685 B1 19800806 - FLUID-BLAST CIRCUIT BREAKER
Title (en)
FLUID-BLAST CIRCUIT BREAKER
Publication
Application
Priority
DE 2759267 A 19771230
Abstract (en)
[origin: US4225762A] A gas blast circuit breaker having a movable contact, a mating contact and a nozzle aperture through which the movable contact can travel; the nozzle aperture is disposed in a wall dividing the switching chamber and the wall supports an arc during switching-off. The mating contact is arranged on a piston which is spring loaded in the opening direction and follows the movable contact at the beginning of the latter's switching-off motion. In the process, the gas located between the end faces of the piston and the mating contact facing the movable contact and the wall dividing the switching chamber is compressed until the contacts are separated, when the gas flow, under pressure, serves to cool the arc.
IPC 1-7
IPC 8 full level
H01H 33/70 (2006.01); H01H 33/18 (2006.01); H01H 33/90 (2006.01); H01H 33/91 (2006.01); H01H 33/915 (2006.01)
CPC (source: EP US)
H01H 33/18 (2013.01 - EP US); H01H 33/901 (2013.01 - EP US)
Citation (examination)
- CHEMICAL ABSTRACTS, Vol. 76, 1972, Nr. 14370b, Columbus, Ohio, USA, JILEK JIRI et al. "Neurotropic basic enol ethers of the dibenzo (b,f)-thiepin series", Seite 371, linke Spalte
- Medicinal Chemistry, Third Ed. Part I, Bunger A, New York, U.S.A. 1970, Seite 75, Part II Seiten 1410-1412, Pschyrembel, Klin. Wörterbuch, 253 Aufl, Berlin, New York 1977, S. 996-997
Designated contracting state (EPC)
BE CH DE FR GB IT LU NL SE
DOCDB simple family (publication)
EP 0002685 A1 19790711; EP 0002685 B1 19800806; DE 2759267 A1 19790705; DE 2759267 B2 19800110; DE 2759267 C3 19800911; DE 2860124 D1 19801127; DE 7740357 U1 19801113; JP S5494672 A 19790726; US 4225762 A 19800930
DOCDB simple family (application)
EP 78101559 A 19781204; DE 2759267 A 19771230; DE 2860124 T 19781204; DE 7740357 U 19771230; JP 15459378 A 19781212; US 97021478 A 19781218