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| Number | Title | Issue Date |
| 7464670 | System for cleaning, inspection and tooling delivery in the secondary side of a steam generator A system for delivering tooling around the annulus of a steam generator without damaging any part of the steam generator is provided where the tooling delivery device travels between the tube bundle and the vessel shell and delivers tooling for cleaning, inspection,... | 12/16/2008 |
| 7304301 | In-situ BWR and PWR CRUD flake analysis method and tool The invention provides a method and tool to perform an analysis of CRUD on a nuclear fuel rod. The method recites providing a nuclear fuel rod with a layer of CRUD on an exterior of the fuel rod, scraping the CRUD from the fuel rod with a CRUD scraping tool and coll... | 12/04/2007 |
| 7302917 | Chemical cleaning of a steam generator during mode 5 generator shut down A Nuclear Steam Supply Stem (NSSS) Mode 5 Steam Generator Chemical Cleaning system is disclosed which applies chemical cleaning solvent (formulated to remove SG deposits) to the secondary side of the SG using primary side supplied heat during NSS Mode 5 shutdown to ... | 12/04/2007 |
| 7239683 | Fuel assembly nozzleless handling tool and method A device and method to move a fuel assembly of a nuclear reactor, wherein the device eliminates the potential for dropping the fuel assembly due to stress corrosion cracking of the upper guide thimble sleeves that attach the top nozzle to guide thimbles. ... | 07/03/2007 |
| 7195131 | Drum closure A drum closure which establishes a connection between the body of a drum and lid, wherein the connection will prevent separation of the lid from the body under severe loading conditions such as dropping the drum from a height of thirty (30) feet. ... | 03/27/2007 |
| 7162981 | System for annulus tooling alignment with suction pickup in the stay dome on the secondary side of a steam generator A system is provided for delivering tooling, suction pickup, and alignment platforms to a stay dome region of a stem generator or the tube-free lane regions adjacent to the stay dome region and includes a suction device positioned in the stay dome region of a steam ... | 01/16/2007 |
| 7046032 | Electrical connection plug for remote monitoring of high voltage motors The present invention provides a motor signature measuring system comprising three current transformers which are placed around the power cables leading to the high voltage motor, an E-Plug module connected to the current transformers and located in a motor control ... | 05/16/2006 |
| 6895067 | Smooth collet for pulling fuel rods A method and apparatus is disclosed for smoothly inserting a fuel rod loader through the skeleton of a fuel cell and then for pulling an attached fuel rod into the fuel rod skeleton while keeping the fuel rod under constant tension and preventing the bowing of the f... | 05/17/2005 |
| 6772638 | UT detection and sizing method for thin wall tubes A method for sizing cracks is disclosed using a combination of depth crack sizing methods to improve crack sizing accuracy for thin walled tubing and tight crack surface openings less than 0.001 inches for cracks of any depth. The tube or plate wall can consist of a... | 08/10/2004 |
| 6421916 | Method for the removal of rib plugs using a spiral TIG welding technique to relax the rib plug A method of removing rib plugs from steam generator tubes in energy producing units such as nuclear reactors includes the removal of the expander element or mandrel from the expanded part of the rib plug, TIG welding a bead on the available internal surfa... | 07/23/2002 |
