Invention Grant
- Patent Title: Method and apparatus for a BWR control rod handling grapple
- Patent Title (中): 用于BWR控制棒处理抓斗的方法和装置
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Application No.: US13249848Application Date: 2011-09-30
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Publication No.: US08934601B2Publication Date: 2015-01-13
- Inventor: Robert W. Whitling , Michael Joseph Gundrum , Mark D. Bardeen , Gregory A. Francisco
- Applicant: Robert W. Whitling , Michael Joseph Gundrum , Mark D. Bardeen , Gregory A. Francisco
- Applicant Address: US NC Wilmington
- Assignee: GE-Hitachi Nuclear Energy Americas LLC
- Current Assignee: GE-Hitachi Nuclear Energy Americas LLC
- Current Assignee Address: US NC Wilmington
- Agency: Harness, Dickey & Pierce, PLC
- Main IPC: G21C19/00
- IPC: G21C19/00 ; B66C1/42 ; G21C19/20

Abstract:
A method and apparatus for grasping and lifting a boiling water reactor (BWR) control rod using a grapple. The grapple may grasp the control rod blade, the fuel support casting and the control rod guide tube of the control rod, to lift and move all three of these components in unison. The grapple includes a frame, a control rod blade hook, a fuel support casting hook(s) and a control rod guide tube hook(s). The control rod guide tube hook(s) may have a distal end that extends through a side flow orifice of a fuel support casting and beyond the confines of a control rod guide tube flow orifice to grasp the control rod guide tube. The distal end of the control rod guide tube hook(s) may include inner and outer landing surfaces, providing respective support for the fuel support casting and control rod guide tube.
Public/Granted literature
- US20130082472A1 METHOD AND APPARATUS FOR A BWR CONTROL ROD HANDLING GRAPPLE Public/Granted day:2013-04-04
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