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:
Jun. 04, 1991
Filed:
Jun. 05, 1990
Applicant:
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G21C / ;
U.S. Cl.
CPC ...
376247 ;
Abstract
An anomaly diagnosis system for a nuclear reactor, comprising ultrasonic wave reflecting members and an ultrasonic wave emitter-receiver. The ultrasonic wave reflecting members are provided respectively on the fuel assemblies, and include a shape memory alloy which permits changing the shape thereof. The ultrasonic wave emitter-receiver is located exterior of the reactor vessel, and includes means for providing an anomaly detection signal to the plant protection system when the ultrasonic wave reflected by any one of the ultrasonic wave reflecting members is not received by the ultrasonic wave emitter-receiver.