Nuclear reactor remote disconnect control rod coupling indicator

Patent · Sat Jan 01 04:00:00 EST 1977

OSTI ID:862937

Vuckovich, Michael ^[1]

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1. McKeesport, PA

A coupling indicator for use with nuclear reactor control rod assemblies which have remotely disengageable couplings between the control rod and the control rod drive shaft. The coupling indicator indicates whether the control rod and the control rod drive shaft are engaged or disengaged. A resistive network, utilizing magnetic reed switches, senses the position of the control rod drive mechanism lead screw and the control rod position indicating tube, and the relative position of these two elements with respect to each other is compared to determine whether the coupling is engaged or disengaged.

• DOE Contract Number: E(11-1)-3045
• Assignee: United States of America as represented by United States Energy (Washington, DC)
• Patent Number(s): US 4053355
• OSTI ID: 862937
• Country of Publication: United States
• Language: English

Related Subjects

/376/976/
assemblies
compared
control
control rod
coupling
coupling indicator
couplings
determine
disconnect
disengageable
disengaged
drive
drive mechanism
drive shaft
elements
engaged
indicates
indicating
indicator
lead
lead screw
magnetic
magnetic reed
mechanism
network
nuclear
nuclear reactor
position
position indicating
reactor
reactor control
reed
reed switch
relative
relative position
remote
remotely
remotely disengageable
resistive
respect
rod
rod assemblies
rod drive
screw
senses
shaft
switches
tube
utilizing
utilizing magnetic