Induced nuclear reactions: processes – systems – and elements – Control component for a fission reactor – Fuse actuated devices
Patent
1982-09-30
1986-04-15
Kyle, Deborah L.
Induced nuclear reactions: processes, systems, and elements
Control component for a fission reactor
Fuse actuated devices
376233, 335208, 335146, G21C 708
Patent
active
045826757
ABSTRACT:
A magnetic reed switch assembly for activating an electromagnetic grapple utilized to hold a control rod in position above a reactor core. In normal operation the magnetic field of a permanent magnet is short-circuited by a magnetic shunt, diverting the magnetic field away from the reed switch. The magnetic shunt is made of a material having a Curie-point at the desired release temperature. Above that temperature the material loses its ferromagnetic properties, and the magnetic path is diverted to the reed switch which closes and short-circuits the control circuit for the control rod electromagnetic grapple which allows the control rod to drop into the reactor core for controlling the reactivity of the core.
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Carnahan L. E.
Gaither Roger S.
Hightower Judson R.
Kyle Deborah L.
The United States of America as represented by the United States
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