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:
Aug. 24, 1976
Filed:
Jan. 10, 1974
Applicant:
Inventors:
Keith O Johnson, Kennewick, WA (US);
Fredrick M Coffman, Richland, WA (US);
Assignee:
Exxon Nuclear Company, Inc., Bellevue, WA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G21C / ;
U.S. Cl.
CPC ...
73 7 / ; 73 672 ; 176 / ; 176 80 ;
Abstract
Nuclear reactor fuel rod leakage is determined by measurement of vibrational characteristics of a resilient, flexible means sealed within the upper end caps of the fuel elements. The flexible means, which is preferably a metallic diaphragm, is set into motion and the vibration measurements are made by a special tool which fits over the end cap of the fuel element to be tested.