Resources Contact Us Home Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE     Reconstitutable nuclear fuel assembly having locking tubes with dimples Image Number 2 for United States Patent #4738821. In a reconstitutable nuclear fuel assembly, a top-nozzle-to-control-rod-guide-thimble attachment system employing a reusable locking tube having dimples. The guide thimble has longitudinal slots defining fingers therebetween. The fingers have rim (bulge) portions which engage a groove in the control rod passageway of the top nozzle adaptor plate for top-nozzle-to-guide-thimble attachment. The finger rim portions are prevented from moving radially inward, and thus leaving the groove, by a locking tube placed in the guide thimble. The locking tube has dimples at two elevations. The dimples interact with the other components of the attachment system to assure proper seating of the locking tube during locking tube installation and to assure against unintentional longitudinal movement of the locking tube during fuel assembly handling. An improperly seated locking tube complicates the underwater fuel assembly reconstitution operation.       Recently Added Patents Bios refresh device and method using the same Head-up display with optical combination providing protection against solar illumination Information recording method, information recording medium, and information reproducing method, wherein information is stored on a data recording portion and a management information recording Test circuit for testing execution of a handshake protocol and method for testing execution of handshake protocol Charger Hot melt adhesive hose hanger Water bottle support mount for a bicycle seat   Randomly Featured Patents Sealing device for shafts Inhibition of mismatch hybridization by a universal competitor DNA Magnetic resonance imaging system Method for production of magnetic recording medium Actuator device Texture measuring apparatus and method Video editor, editor, and portable editor Seaplane hull Temperature control and drip valve assembly for a steam iron Non-phasing chloroprene polymer adhesive composition and preparation thereof © 2006-2008 PatentGenius. All Rights Reserved.