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:
May. 24, 1988
Filed:
Aug. 14, 1986
Alain Frizot, Montcenis, FR;
Gerard Cadaureille, Saint Bonnet de Mure, FR;
Jean-Christophe Lalere, Lyon, FR;
Jean-Yves Machuron, Le Creusot, FR;
Framatome, Courbevoie, FR;
Abstract
Device for checking clearance between the periphery of the upper core plate and the inner surface of the core enclosure of a pressurized water nuclear reactor comprising a vertical supporting structure (7) resting on the upper plate (3), a plurality of articulated assemblies (10), each carrying a calibrated feeler blade of a specified thickness, a pivoting assembly associated with each of the articulated assemblies, for moving the blades (9) in a substantially vertical direction towards the gap between the plate (3) and the enclosure (1, 2), or in the opposite direction, as well as a video camera (14) in the vicinity of the blades (9). The device enables the checking to be carried out under water and by remote control.