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. 26, 1977
Filed:
Nov. 07, 1974
Applicant:
Inventors:
Fernand Giordano, Saint-Etienne, FR;
Pierre Marmonier, Aix-en-Provence, FR;
Jean Vayra, Aix-en-Provence, FR;
Assignee:
Commissariat a l'Energie Atomique, Paris, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G21C / ;
U.S. Cl.
CPC ...
176 38 ; 176 / ;
Abstract
The safety device comprises an absorber element connected by a separable coupling to the lower end of a vertical operating stem. When released, the absorber element drops under gravity from a top position to a bottom position within an open-topped casing placed among wrappers containing fuel pin bundles. In the top position of the absorber element, the disconnectable coupling is placed at the top and partly within the interior of the casing while the absorber element extends within said casing into the peripheral blanket zone located externally of the central fuel zone.