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CRDM with separate SCRAM latch engagement and locking

United States Patent

9,865,364
January 9, 2018
View the Complete Patent at the US Patent & Trademark Office
A control rod drive mechanism (CRDM) configured to latch onto the lifting rod of a control rod assembly and including separate latch engagement and latch holding mechanisms. A CRDM configured to latch onto the lifting rod of a control rod assembly and including a four-bar linkage closing the latch, wherein the four-bar linkage biases the latch closed under force of gravity.
Dodd; Christopher D. (Lakewood, OH), DeSantis; Paul K. (Bentleyville, OH), Stambaugh; Kevin J. (Willowick, OH), Mackovjak; Allan R. (Willoughby, OH), McLaughlin; John P. (North Royalton, OH), Goodyear; Brett T. (Twinsburg, OH), Edwards; Michael J. (Forest, VA), Ales; Matthew W. (Forest, VA)
BWXT mPower, Inc. (Charlotte, NC), BWXT Nuclear Operations Group, Inc. (Lynchburg, VA)
14/ 174,630
20140270036
February 6, 2014
This invention was made with Government support under Contract No. DE-NE0000583 awarded by the Department of Energy. The Government has certain rights in this invention.