Metal working – Means to assemble or disassemble – Nuclear device
Patent
1986-03-14
1991-06-11
Echols, P. W.
Metal working
Means to assemble or disassemble
Nuclear device
29464, 29706, 29710, 29727, 29821, 198769, B23P 1900
Patent
active
050221426
ABSTRACT:
An apparatus for loading cylindrical fuel pellets into tubular fuel rods includes pellet segregation means for detecting and segregating an undersized pellet prior to its entry into a fuel rod. The segregation means includes a pair of laterally separated guide rails adapted to support the lateral side edges of the advancing pellets, and such that a pellet of undersized diameter will drop to a level below that of the properly sized pellets. A lateral shoulder is positioned at the downstream end of the guide rails for engaging and holding any dropped pellet so that it cannot advance into the fuel rod. Also, a pellet deflecting plate is positioned at the upstream end of the guide rails, to interrupt the contact between adjacent pellets and thus assure that an undersized pellet is not carried along the guide rails by the adjacent pellets.
REFERENCES:
patent: 3120888 (1964-02-01), Piel
patent: 3223490 (1965-12-01), Sacken et al.
patent: 3940908 (1976-03-01), Dazen et al.
patent: 3965648 (1976-06-01), Tedesco
patent: 4235066 (1980-11-01), King et al.
patent: 4243078 (1981-01-01), Sahlin
patent: 4292788 (1981-10-01), King
Cuda I.
Echols P. W.
Westinghouse Electric Corp.
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