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:
Oct. 15, 1991
Filed:
Mar. 15, 1990
Applicant:
Inventors:
Jean-Pierre Kersusan, Grenoble, FR;
Hugues Filiputti, Monestier de Clermont, FR;
Victor Pennucci, Seyssinet Pariset, FR;
Peter Malkin, Grenoble, FR;
Assignee:
Merlin Gerin, Meylan, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ; H01H / ; H01H / ;
U.S. Cl.
CPC ...
2001 / ; 2001 / ; 2001 / ;
Abstract
An inside of tubular contacts of a self-extinguishing expansion SF.sub.6 -gas circuit breaker including guiding ribs arranged to oppose any vortex-effect swirling gas flow between a first extinguishing chamber and a second expansion chamber. The presence of these ribs improves the dielectric withstand of the circuit breaker, and prevents any arc restriking inside the contacts.