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.

Date of Patent:
Mar. 15, 2016

Filed:

Jun. 08, 2011
Applicants:

Katsuhiko Sato, Ota-Ku, JP;

Hidehiko Kuroda, Yokohama, JP;

Mitsuhiro Enomoto, Yokosuka, JP;

Hidefumi Amanai, Yokohama, JP;

Tooru Ootsubo, Matsudo, JP;

Inventors:

Katsuhiko Sato, Ota-Ku, JP;

Hidehiko Kuroda, Yokohama, JP;

Mitsuhiro Enomoto, Yokosuka, JP;

Hidefumi Amanai, Yokohama, JP;

Tooru Ootsubo, Matsudo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G21C 17/00 (2006.01); G01H 1/00 (2006.01);
U.S. Cl.
CPC ...
G01H 1/00 (2013.01); G21C 17/00 (2013.01);
Abstract

A vibration measuring apparatus for nuclear reactor internal structure includes a holder which has an opening contact on a surface of a pressure vessel of a nuclear reactor; a vibrator accommodated in the holder so as to transmit or receive an ultrasonic wave; a couplant with which the holder is filled up; and, a bias component applies a biasing force to the vibrator in the direction of the opening; The couplant is a solid state of metal material at normal temperature and change to liquid stage by heat transfer from the pressure vessel.


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