Metal working – Plural diverse manufacturing apparatus including means for... – Binding or covering and cutting
Patent
1984-06-06
1987-06-30
Weidenfeld, Gil
Metal working
Plural diverse manufacturing apparatus including means for...
Binding or covering and cutting
29400N, 2940208, 2940217, 294264, 29434, 29723, 376260, B23P 2300, G21C 1900
Patent
active
046759611
ABSTRACT:
The old split-pin assemblies of the lower guide tube of a nuclear reactor are replaced by new split-pin assemblies in a robotic work station under a pool of water. The work station includes a plurality of robotic tools which are remotely actuable from a robotic command center outside of the pool to position the guide tube precisely for a replacement operation, to fragment the old split-pin assemblies and dispose of the fragments under water, and to install a new split-pin assembly. The lower-guide-tube positioning means has a hydraulic cylinder, also remotely actuable externally to the pool, for rotating the guide tube so that it may be oriented properly to be processed by different tools in succession and also so that both split-pin assemblies in each guide tube may be replaced by the same set of tools.
REFERENCES:
patent: 3177121 (1965-04-01), Horowitz et al.
patent: 4199857 (1980-04-01), Meuschke et al.
patent: 4292133 (1981-09-01), Sasaki et al.
patent: 4477957 (1984-10-01), Inman
patent: 4585613 (1986-04-01), Styskal
"Dealing with Control Guide Tube Support Pin Cracking in French PWR's", by Laurent Guicherd, Nuclear Engineering International, Nov. 1984, pp. 29-33.
"Rapid Replacement for Slurry Guide Tube Support Pins", Nuclear Engineering International, Jun. 1985, p. 19.
Fucich Lorraine
Green Richard A.
Howell David A.
Nee John D.
Spofford Bruce S.
Diamond H.
Howell Daniel W.
Weidenfeld Gil
Westinghouse Electric Corp.
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