Patent · US Expired

Internal structure for a nuclear reactor vessel

US4081325A · kind A · utility

7Cited by

5References

6Claims

0Family size

Assignee

COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR

Inventors

Roger Aubert · Arlington, US
Jacques Baujat · Versailles, FR

Key dates

Filing date	Sep 17, 1976
Grant date	Mar 28, 1978
Priority date	—
Expiry date	Sep 17, 1996

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E30/30
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A cylindrical shell or so-called reactor core basket is fitted with a coaxial and cylindrical bearing ring which is joined to a top flange of the core basket by means of radial struts and rests on an internal annular shoulder of the reactor vessel. Passageways between the bearing ring and the struts accommodate instruments for nondestructive testing of welded joints, the instruments being guided and displaced over the external face of the core basket in order to inspect the internal face of the reactor vessel without any need to remove reactor internals.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.