The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 19, 2014
Filed:
Mar. 12, 2010
Kevin J. Stambaugh, Willowick, OH (US);
Paul K. Desantis, Bentleyville, OH (US);
Allan R. Mackovjak, Willoughby, OH (US);
John P. Mclaughlin, North Royalton, OH (US);
Kevin J. Stambaugh, Willowick, OH (US);
Paul K. DeSantis, Bentleyville, OH (US);
Allan R. Mackovjak, Willoughby, OH (US);
John P. McLaughlin, North Royalton, OH (US);
Babcock & Wilcox Nuclear Operations Group, Inc., Euclid, OH (US);
Abstract
A control rod drive mechanism (CRDM) for use in a nuclear reactor, the CRDM comprising: a connecting rod connected with at least one control rod; a lead screw; a drive mechanism configured to linearly translate the lead screw; an electromagnet coil assembly; and a latching assembly that latches the connecting rod to the lead screw responsive to energizing the electromagnet coil assembly and unlatches the connecting rod from the lead screw responsive to deenergizing the electromagnet coil assembly. The latching assembly is secured with and linearly translates with the lead screw, while the electromagnet coil assembly does not move with the lead screw. The electromagnet coil assembly is at least coextensive with a linear translation stroke over which the drive mechanism is configured to linearly translate the lead screw.