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. 05, 2013
Filed:
Jan. 07, 2011
Motoyuki Nakamura, Hitachi, JP;
Yoshio Nonaka, Hitachi, JP;
Naoyuki Kono, Mito, JP;
Masahiro Miki, Tokai, JP;
Satoshi Shinohara, Tokai, JP;
Motoyuki Nakamura, Hitachi, JP;
Yoshio Nonaka, Hitachi, JP;
Naoyuki Kono, Mito, JP;
Masahiro Miki, Tokai, JP;
Satoshi Shinohara, Tokai, JP;
Hitachi-GE Nuclear Energy, Ltd., Ibaraki, JP;
Abstract
An object of the present invention is to provide an inspection apparatus for inspecting weld zones in a reactor pressure vessel, the inspection apparatus comprising: an ultrasonic probefor emitting an ultrasonic wave; a probe holding unitfor holding the ultrasonic probesuch that a ultrasonic wave transmitting surface of the ultrasonic probeis kept in direct contact with or at a constant distance from the outer surface of the reactor pressure vessel; a pressing unitfor pressing the probe holding unitparallel to a central axis of a control rod drive housingagainst the reactor pressure vessel; and a rotatorfor rotating the probe holding unitand the pressing unitabout the central axis of the control rod drive housing