Induced nuclear reactions: processes – systems – and elements – Grids
Patent
1992-11-05
1994-05-17
Wasil, Daniel D.
Induced nuclear reactions: processes, systems, and elements
Grids
376446, 376438, 376260, G21C 300
Patent
active
053135075
ABSTRACT:
An apparatus for attaching a key member to a nuclear fuel assembly grid and detaching the same therefrom is disclosed. The apparatus includes a supply and recovery mechanism, an inserting and removing mechanism, and a rotating mechanism. The supply and recovery mechanism operates to supply the key member to a prescribed position adjacent to the grid and recover the same. The inserting and removing mechanism is disposed between the supply and recovery mechanism and the grid, and operates to insert the key member supplied from the supply and recovery mechanism into the grid and remove the key member from the grid to recover the same to the supply and recovery mechanism. The rotating mechanism is disposed adjacent to the inserting and removing mechanism, and operates to rotate the key member inserted in the grid in a prescribed direction about the longitudinal axis to attach the same to the grid and rotate the same in a direction opposite to the prescribed direction to detach the same from the grid.
REFERENCES:
patent: 4124444 (1978-11-01), Jabsen
patent: 4175000 (1979-11-01), Jabsen
patent: 5061437 (1991-10-01), Whitt
patent: 5124116 (1992-06-01), Whitt
Ohuchi Katsunori
Oyama Junichi
Sando Akio
Mitsubishi Nuclear Fuel Co.
Voss Frederick H.
Wasil Daniel D.
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