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. 23, 1983
Filed:
Sep. 22, 1980
Applicant:
Inventors:
Tatsuyoshi Aisaka, Yokohama, JP;
Mituo Kawai, Yokohama, JP;
Suteto Hasegawa, Yokohama, JP;
Takeo Nawai, Kokubunji, JP;
Assignee:
Tokyo Shibaura Denki Kabushiki Kaisha, Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G21C / ;
U.S. Cl.
CPC ...
376327 ; 376353 ; 29434 ; 308D / ;
Abstract
A control rod to be arranged in a nuclear reactor core comprises a body of a control rod, control rod guide rollers, pins connected to the guide rollers, and fixing members directly welded to the body of the control rod. The pins slidably support the respective guide rollers and the fixing members are engaged with the pins with a small clearance therebetween so as not to transfer welding heat from the fixing member to the pin.