Uncoupling rod centering gauge

U.S. Patent Number: 5394446

Abstract: A gauge for ensuring that the uncoupling rod of a control rod drive is properly inserted in the center hole of the spud and not in one of the outer lobes, i.e., spud flow holes, which communicate with the center hole. The uncoupling rod is inserted in the spud. Then the gauge is placed on top of the spud with a centering ring protruding into the spud. The uncoupling rod is correctly installed if it is free to slide inside the gauge and the spud. The gauge is also provided with a ring to protect the spud during transfer of the control rod drive.

Inventors: White; Thomas W. (San Jose, CA), Saxon; Edward W. (San Jose, CA), Tsukida; Robert S. (San Jose, CA)

Assignee: General Electric Company (San Jose, CA)

Application Number: 08/135,811

Issued: 1995-02-28

Expired: 2007-02-28

Classes: 376/245 ; 376/233; 376/258

Field of search: 81/3.41,3.42 376/233,260,245

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