G - Physics – 21 – C
Patent
G - Physics
21
C
359/30
G21C 7/10 (2006.01) G21C 7/117 (2006.01) G21C 7/12 (2006.01)
Patent
CA 1252230
ABSTRACT OF THE DISCLOSURE: A device for displacing and latching a cluster of control elements in a nuclear reactor, comprises a vertical shaft movable along its axis under the action of a fluid pressure difference and having means for supporting at least one head of the cluster and a first resilient finger for securing and retaining the head on the support means. It comprises a high position securing mechanism carried by a fixed tube for guiding the cluster and having at least one resilient finger for securing the head and retaining the head against the action of gravity and a vertically movable bolt urged resiliently to a position in which it prevents disengagement of a second resilient finger and cooperating with a mechanism controlling a second cluster so as to be brought into a position in which it releases the second resilient finger when the second cluster passes beyond the highest position assumed during normal operation.
498633
Framatome
Robic Robic & Associes/associates
LandOfFree
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