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:
Nov. 06, 2018
Filed:
Sep. 15, 2016
Applicant:
Central Research Institute of Electric Power Industry, Tokyo, JP;
Inventor:
Hirofumi Takeda, Chiba, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G21F 5/00 (2006.01); G21F 5/012 (2006.01); G21F 5/06 (2006.01); G21C 13/00 (2006.01); F25D 3/00 (2006.01); G01M 3/00 (2006.01); G01N 25/72 (2006.01);
U.S. Cl.
CPC ...
G01M 3/002 (2013.01); G01N 25/72 (2013.01);
Abstract
A method for detecting gas leakage from a radioactive material sealed container includes measuring a temperature at a top portion of a metallic sealed container, a temperature at a bottom portion of a lid portion of a concrete-made storage container facing the top portion of the metallic sealed container, or a temperature of a member existing between the bottom portion of the lid portion and the top portion of the metallic sealed container. An inner temperature of the lid portion of the concrete-made storage container is also measured. Presence of leakage of inactive gas is estimated by comparing the temperatures.