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. 13, 1995
Filed:
Nov. 30, 1993
Applicant:
Inventors:
Yoshitaka Yaginuma, Tohkai, JP;
Yoji Koike, Tohkai, JP;
Assignee:
Mitsubishi Nuclear Fuel Co., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G21C / ;
U.S. Cl.
CPC ...
73622 ; 376252 ;
Abstract
A compact ultrasonic inspection device of high resolution and operating speed is presented for examining the defects in a welded section between the end plug and the fuel pipe. The welded fuel rod is inserted into an inspection section of a rotating member filled with water, and is held immovably. The rotating member, having a plurality of ultrasonic probes disposed around the periphery, is rotated around the axis of the fuel rod to examine the welded section.