Nuclear reactor core servicing apparatus

Details Nuclear reactor core servicing apparatus Nuclear reactor core servicing apparatus

1975-09-29

1977-12-20

Bentley, Stephen C.

176 35, 214 18N, G21C 1920, G21C 708, B66C 1708

Patent

active

040640000

ABSTRACT:
Improved core servicing apparatus for a nuclear reactor of the type having a reactor vessel, a vessel head having a head penetration therethrough, a removable plug adapted to fit in the head penetration, and a core of the type having an array of elongated assemblies. The improved core servicing apparatus comprises a plurality of support columns suspended from the removable plug and extending downward toward the nuclear core, rigid support means carried by each of the support columns, and a plurality of servicing means for each of the support columns for servicing a plurality of assemblies. Each of the plurality of servicing means for each of the support columns is fixedly supported in a fixed array from the rigid support means. Means are provided for rotating the rigid support means and servicing means between condensed and expanded positions. When in the condensed position, the rigid support means and servicing means lie completely within the coextensive boundaries of the plug, and when in the expanded position, some of the rigid support means and servicing means lie without the coextensive boundaries of the plug.

REFERENCES:
patent: 2898281 (1959-08-01), Untermyer
patent: 2949202 (1960-08-01), Treshow
patent: 3070531 (1962-12-01), Huet
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patent: 3773616 (1973-11-01), Aubert
patent: 3809607 (1974-05-01), Murray
patent: 3897878 (1975-08-01), Peberdy
patent: 3940311 (1976-02-01), Frisch

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