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:
Nov. 15, 1977
Filed:
Feb. 11, 1976
Applicant:
Inventor:
Robert Deville, Lyon, FR;
Assignee:
Delle-Alsthom, Villeurbanne, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
361128 ; 174209 ; 361129 ; 313257 ;
Abstract
Cut-off chamber of a lightning protector, characterized in that on the one hand, it comprises a wall made of a porous ceramic substance, ensuring the discharge and the cooling of the gases at the periphery of the chamber, at the time of the ignition of an arc between two elctrodes combined in that chamber and that on the other hand, a means for reinforcing the dielectric strength of the wall is arranged perpendicular to the zones subjected to the highest potential gradients.