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. 29, 2022

Filed:

Sep. 03, 2019
Applicant:

Westinghouse Electric Company, Llc, Cranberry Township, PA (US);

Inventors:

Yuriy Aleshin, Cayce, SC (US);

Brian Millare, Columbia, SC (US);

Michael O. Bausch, Lexington, SC (US);

Carter Eliot Lunde, Columbia, SC (US);

Assignee:

Westinghouse Electric Company LLC, Cranberry Township, PA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G21C 3/334 (2006.01); G21C 3/332 (2006.01); G21C 7/20 (2006.01); G21C 3/26 (2006.01); G21C 3/34 (2006.01); G21C 3/326 (2006.01); G21C 3/322 (2006.01); G21C 3/33 (2006.01); G21C 7/117 (2006.01); G21C 7/12 (2006.01); G21C 9/02 (2006.01);
U.S. Cl.
CPC ...
G21C 3/334 (2013.01); G21C 3/332 (2013.01); G21C 7/20 (2013.01); G21C 3/26 (2013.01); G21C 3/322 (2013.01); G21C 3/326 (2013.01); G21C 3/3267 (2019.01); G21C 3/3305 (2013.01); G21C 3/34 (2013.01); G21C 7/117 (2013.01); G21C 7/12 (2013.01); G21C 9/02 (2013.01); Y02E 30/30 (2013.01);
Abstract

Methods of installing an external dashpot tube around a control rod guide tube in a nuclear reactor fuel assembly are disclosed herein. The nuclear reactor fuel assembly may include a top nozzle, a bottom nozzle, and a plurality of grids. The various methods may comprise inserting a guide tube into a skeleton of the nuclear reactor fuel assembly to a lower middle grid, the lower middle grid being second closest grid to the bottom nozzle of the plurality of grids. The various methods may also include installing an external dashpot tube over the guide tube after it has been inserted to the lower middle grid; inserting the guide tube with the installed external dashpot tube to the bottom nozzle; attaching the guide tube to the skeleton; and bulging the guide tube onto the external dashpot tube.


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