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:
Aug. 02, 2011
Filed:
Apr. 07, 2005
Christian Lindner, St. Cyr au Mont d'Or, FR;
Jean-luc Bessede, Chateauvilain, FR;
Yannick Kieffel, Frontonas, FR;
Christian Lindner, St. Cyr au Mont d'Or, FR;
Jean-Luc Bessede, Chateauvilain, FR;
Yannick Kieffel, Frontonas, FR;
Areva T & D SA, Paris la Defense, FR;
Abstract
The gas-tight, high or medium voltage electric switch device (), containing an insulating gas under pressure, comprises switch contacts () capable of occupying an open position and a closed position and disposed inside a composite insulator formed by a rigid tube () surrounded by an elastomer casing () whose outside surface defines a succession of annular fins. The rigid tube and the elastomer casing are arranged so as to define an observation window () that is at least translucent, and through which the open or closed position of the switch contacts is visible.