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.

Date of Patent:
Oct. 15, 1991

Filed:

Aug. 25, 1989
Applicant:
Inventor:

Gerard Chevereau, Le Raincy, FR;

Assignee:

Framatome, Courbevoie, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G21C / ;
U.S. Cl.
CPC ...
376254 ;
Abstract

The instrumentation arrangement comprises a horizontal plate (31) arranged below the vessel (1) closure head (3) through which instrumentation columns (27) pass, carrying measurement conduits internally (26). The distribution plate (31) carries vertical guide tubes (38), into each of which a measurement conduit (26) is introduced. Each of the vertical guide tubes (38) is engaged into a tubular brace (17) of the upper internal equipment of the reactor, to ensure the guidance of the measurement conduit (26), from the instrumentation column (27) to an instrumentation guide tube (30) of a reactor core assembly (5). The distribution plate (31) is fastened in a removable manner to the plate (18) supporting the upper internal equipment of the reactor and may be raised relative to the upper internal equipment for withdrawing, as a unit, the measurement conduits (26) from the instrumentation tubes of the core assemblies, when the closure head (3) is removed.


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