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:
May. 14, 2013
Filed:
Apr. 26, 2006
Mitsuharu Nakamura, Yokohama, JP;
Tsukasa Suwazono, Yokohama, JP;
Yoshikazu Ui, Kawasaki, JP;
Yutaka Sosa, Yokohama, JP;
Goro Yanase, Yokohama, JP;
Kazuhiro Kawagoe, Yokohama, JP;
Shinichi Ishizato, Yokohama, JP;
Norimitsu Komai, Yokohama, JP;
Mitsuharu Nakamura, Yokohama, JP;
Tsukasa Suwazono, Yokohama, JP;
Yoshikazu Ui, Kawasaki, JP;
Yutaka Sosa, Yokohama, JP;
Goro Yanase, Yokohama, JP;
Kazuhiro Kawagoe, Yokohama, JP;
Shinichi Ishizato, Yokohama, JP;
Norimitsu Komai, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A control rod position detector including a permanent magnet that is attached on a control rod inserted in a reactor pressure vessel, where the permanent magnet is capable of moving together with the control rod, and a plurality of reed switch mechanisms that are arranged in the reactor pressure vessel at regular intervals in an insertion direction of the control rod. Each of the reed switch mechanisms is provided with a pair of reed switches that are placed so as to overlap with each other in the insertion direction of the control rod. The pair of reed switches are connected to a common wiring. The common wiring is connected to a detector that detects a position of the control rod based on signals from the reed switches.