The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 10, 1991
Filed:
Aug. 07, 1990
Edmond Thuries, Meyzieu, FR;
Joseph Martin, Meyzieu, FR;
Van Doan Pham, Meyzieu, FR;
Jean Bonnaire, Genas, FR;
GEC Alsthom SA, Paris, FR;
Abstract
A circuit breaker/isolating switch device intended, in particular, to be associated with a generator in a power station for protection purposes. The device is disposed inside a metal sheath and comprises a gastight insulating casing filled with a gas having good dielectric properties and at a pressure of a few bars, the casing containing a fixed assembly comprising a fixed permanent contact and a fixed arcing contact, a moving assembly comprising a moving permanent contact and a moving arcing contact, a blast cylinder, a blast piston, and a blast nozzle. The moving assembly is connected to a drive rod passing in gastight manner through the casing and connected outside the casing to a drive mechanism. The casing carries a metal collar disposed level with the contact separation zone and connected to ground and the collar includes a radial channel provided with an optical device enabling the position of the contacts to be inspected.