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, 2002
Filed:
Nov. 07, 2000
Applicant:
Inventors:
François Biquez, Brignais, FR;
Jean-Marc Willieme, La Mulatiere, FR;
Assignee:
Alstom, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 9/30 ;
U.S. Cl.
CPC ...
H01H 9/30 ;
Abstract
A power station switch having high nominal current, the switch comprising a break chamber containing a dielectric gas under pressure and mounted inside a protective sheath which may optionally carry a general flow of cooling air, and a radiator/heat-exchanger situated outside said sheath and connected to said break chamber in which said gas under pressure is put into continuous circulation. Said gas under pressure as cooled in the radiator/heat-exchanger is returned to the break chamber via a metal case of the break chamber that is designed to be grounded.