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. 10, 1989
Filed:
Sep. 18, 1987
Applicant:
Inventors:
Dominique Hertz, Tassin, FR;
Jean-Michel Couturier, Villeurbanne, FR;
Assignees:
Framatome, Courbevoie, FR;
Compagnie Generale Des Matieres Nucleaires, Villacoublay, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; G21C / ;
U.S. Cl.
CPC ...
427 37 ; 427 38 ; 427309 ; 427399 ; 376327 ; 376900 ; 376305 ;
Abstract
A sheath for a nuclear reactor control rod consists of chromium nickel stainless steel. It is protected against friction wear by nitridation over a depth of from 15 to 50 .mu.m obtained by an electric discharge in a nitrogen containing atmosphere.