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:
Apr. 24, 2012
Filed:
Jun. 02, 2010
Martin Schlaug, Den Haag, NL;
Uwe Ernst, Gauting, DE;
Saïd Kantas, Le Cres, FR;
Xavier Godechot, Castries, FR;
Laëtita Dalmazio, Stgely du Fesc, FR;
Rama Shanker Parashar, Staf Ford, GB;
Martin Schlaug, Den Haag, NL;
Uwe Ernst, Gauting, DE;
Saïd Kantas, Le Cres, FR;
Xavier Godechot, Castries, FR;
Laëtita Dalmazio, Stgely du Fesc, FR;
Rama Shanker Parashar, Staf Ford, GB;
Areva T&D SAS, Paris, FR;
Abstract
A vacuum circuit-breaker wherein one contact body is made with two windings implanted concentric with one another and connected electrically in parallel. The second winding is in the form of an solid part with an annular ring. The circuit-breaker increases the axial magnetic field (AMF) and distributes it uniformly over the contact surface so that arc extinction is improved for high short-circuit currents, typically greater than 63 kA.