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U.S. Department of Energy
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Control rod drive shaft latch

Patent ·
OSTI ID:7355722

A latch mechanism is operated by differential pressure on a piston to engage the drive shaft for a control rod in a nuclear reactor, thereby preventing the control rod from being ejected from the reactor in case of failure of the control rod drive mechanism housing which is subjected to the internal pressure in the reactor vessel. 6 claims, 4 drawing figures.

Assignee:
Westinghouse Electric Corp.
Patent Number(s):
US 3941653
OSTI ID:
7355722
Country of Publication:
United States
Language:
English