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. 23, 1988
Filed:
Feb. 03, 1987
Applicant:
Inventors:
Alain Heuze, Paris, FR;
Claude Cauquelin, Neauphles le Chateau, FR;
Assignee:
Framatome, Courbevoie, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G21C / ; G21C / ;
U.S. Cl.
CPC ...
376254 ; 376245 ; 376292 ;
Abstract
In the device, over at least a portion of the length of the internal guide passage (5) of the tubular conduit (15) extends a retaining tube (16) exhibiting radial undulations (17) such that the cylinder having straight generatrices which is inscribed in the tube (16) corresponding to the free passage in a straight line, within this tube, has a diameter less than the diameter of the tubular conduit (15). In the case of a pressurized water nuclear reactor, the retaining tube (16) is preferably placed, at least in part, within the lower core plate (2).