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. 13, 1985
Filed:
Jun. 01, 1984
Hitachi, Ltd, Tokyo, JP;
Hitachi Service Engineering Co., Ltd., Tokyo, JP;
Abstract
A device for removing a cladding material from a bottom portion of a control rod guide tube of a nuclear reactor. A rotor tube is removably mounted in a housing of a control rod drive of the nuclear reactor and has at least its forward end portion hydraulically insertable into the bottom portion of the control rod guide tube through an opening located in a lower portion of the control rod guide tube for inserting the control rod drive. The rotor tube is provided at the forward end portion thereof with a foldable rotary brush and cleaning water supply nozzles. A rotary drive shaft is extending through the rotor tube for rotating the rotary brush. The cladding material deposited on the bottom portion of the control rod guide tube that has become radioactive can be readily and positively removed therefrom with a small volume of water while enabling the risk of exposure to radiation to be minimized at a time the operation of cleaning the bottom portion of the control rod guide tube is performed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile