Title:
ADJUSTABLE HARD STOP FOR NUCLEAR REACTOR RESTRAINER BRACKETS AND METHODS OF USING THE SAME
Document Type and Number:
Japanese Patent JP2017194480
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a hard stop used for separating and biasing restrainer brackets and inlet mixers in an operating nuclear reactor.SOLUTION: A hard stop 200 includes a lip clamp 250 that clamps to a restrainer bracket and a wedge member 210 that biases against an inlet mixer. A wedge member and the lip clamp are engaged such that the two components can slide against one another to bias the restrainer bracket and inlet mixer. The lip clamp includes a clamp arm 251 and an engagement member to clamp opposite sides of the restrainer bracket. A ratchet assembly maintains selective positioning of various components of the hard stop. The hard stop may be used in several different numbers, positions, and configurations in repair or modification systems. The hard stop may be installed by determining location on an outside of a restrainer bracket for the hard stop, securing the hard stop at the location, and biasing the hard stop between two components at the location.SELECTED DRAWING: Figure 4
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Inventors:
ROBIN D SPRAGUE
BARRY H KOEPKE
BARRY H KOEPKE
Application Number:
JP2017121801A
Publication Date:
October 26, 2017
Filing Date:
June 22, 2017
Export Citation:
Assignee:
GE HITACHI NUCLEAR ENERGY AMERICAS LLC
International Classes:
G21C15/25
Domestic Patent References:
| JP2003161795A | 2003-06-06 | |||
| JP2000193785A | 2000-07-14 | |||
| JP2006071638A | 2006-03-16 | |||
| JP2007333431A | 2007-12-27 |
Foreign References:
| US6052425A | 2000-04-18 |
Attorney, Agent or Firm:
Arakawa Satoshi
Hirokazu Ogura
Toshihisa Kurokawa
Takuto Tanaka
Hirokazu Ogura
Toshihisa Kurokawa
Takuto Tanaka