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:
Jul. 13, 2010
Filed:
Apr. 20, 2005
Jean-luc Bessede, Chateauvilain, FR;
Oana Aitken, Saint Egreve, FR;
Jean-Luc Bessede, Chateauvilain, FR;
Oana Aitken, Saint Egreve, FR;
Areva T&D SA, Paris la Defense Cedex, FR;
Abstract
This electrical switchgear has an interrupting chamber enclosing an interrupting gas (G) substantially devoid of SFand of CF, and a first arcing contact () and a second arcing contact (), the two arcing contacts moving causes an electric arc () to strike, while at least one irradiation wall () is provided that is suitable for being reached by the electric arc. At least two component materials that are part of at least one element selected from the interrupting gas, the first and second arcing contacts, and the or each irradiation wall, are suitable for decomposing under the effect of the electric arc, so as to form decomposed species (e, e) suitable for combining in the interrupting chamber, in order to form at least one new gaseous species (G), before the electric arc is extinguished, the dielectric properties of said at least one new gaseous species being superior to the dielectric properties of said interrupting gas (G).