Induced nuclear reactions: processes – systems – and elements – With control of reactor – By movement of control element or by release of neutron...
Patent
1985-12-26
1988-07-05
Kyle, Deborah L.
Induced nuclear reactions: processes, systems, and elements
With control of reactor
By movement of control element or by release of neutron...
376209, 376233, G21C 712
Patent
active
047553464
ABSTRACT:
The device comprises a vertical shaft (36) movable along its axis under the action of a fluid pressure difference and having means for supporting at least one head (28) of the cluster and a first resilient finger (42) for securing and retaining the head on the support means. It comprises a high position securing mechanism carried by a fixed tube (20) 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.
REFERENCES:
patent: 3154472 (1964-10-01), Shannon
patent: 3625816 (1971-12-01), Aleite et al.
patent: 3905634 (1975-09-01), Johnson et al.
patent: 3906469 (1975-09-01), Kronk
patent: 4411857 (1983-10-01), Sridhar
patent: 4486382 (1984-12-01), Gravelle et al.
patent: 4544521 (1985-10-01), Millot et al.
patent: 4604576 (1976-08-01), Barrault
Framatome
Klein Richard L.
Kyle Deborah L.
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