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| Number | Title | Issue Date |
| 8189731 | Machinery system allowing replacement of old reactor with a new reactor in nuclear power electric generating station The machinery system and its application herewith, intended to create an opening in the roof of a Reactor Primary Containment of Generation II and III Nuclear Power Electric Generating Station. This opening is necessary to replace an aging nuclear reactor with a new... | 05/29/2012 |
| 8149981 | Methods and devices relating to a nuclear light water reactor of the boiling water kind A method of determining the R-factor for a bundle of nuclear fuel rods in a nuclear light water reactor of the boiling water reactor kind. The R-factor is a factor that accounts for the weighted local power influence on a fuel rod. A local R-factor (Ri(z)... | 04/03/2012 |
| 8149982 | Channel seating tool for nuclear fuel assembly and method for seating channel on the assembly A tool to slide a channel on a nuclear reactor fuel bundle assembly, the tool includes: a plate having a slot to receive a handle of the fuel bundle and a lower surface that engages an upper edge of the channel; at least one post extends up from the plate, and an ar... | 04/03/2012 |
| 8130894 | Data processing apparatus and method for use with a 4K interleaver in a digital video broadcasting (DVB) standard A data processing apparatus maps input symbols to be communicated onto a predetermined number of carrier signals of an Orthogonal Frequency Division Multiplexed (OFDM) symbol. The data processor includes an interleaver memory which reads-in the predetermined number ... | 03/06/2012 |
| 8107584 | Apparatuses and methods for damping nuclear reactor components Example embodiment damping devices may include a housing capturing a piston. The housing may be filled and/or able to be filled with a damping fluid compatible with the nuclear reactor coolant, so that a leak from the housing or coolant passing into the housing does... | 01/31/2012 |
| 8102961 | Control rod guide tube and method for providing coolant to a nuclear reactor fuel assembly Control rod guide tubes for a nuclear reactor having a body with an axial length that defines a lower end portion and an upper end portion and a cavity within a substantial length of the body. Orifices are included at the upper and lower end portions of the body. A ... | 01/24/2012 |
| 7965807 | Instrument removal system An instrument removal system for removing detector cables from a nuclear reactor includes a removal cart and a disposal cask. in an exemplary embodiment, the removal cart includes a base including a plurality of wheels coupled thereto, a motor mounted on the base, a... | 06/21/2011 |
| 7889827 | Method and apparatus for removing tack welds on reactor vessel components in a nuclear reactor An electrical discharge machining (EDM) tool and method for removing tack welds on a component in a reactor pressure vessel are disclosed. The tool may include a motor, a housing which engages the component having tack welds, an electrode, positioned in the housing,... | 02/15/2011 |
| 7835481 | Instrument removal system An instrument removal system for removing detector cables from a nuclear reactor includes a removal cart and a disposal cask. in an exemplary embodiment, the removal cart includes a base including a plurality of wheels coupled thereto, a motor mounted on the base, a... | 11/16/2010 |
| 7804929 | Method and system for calculating rod average criteria A method of calculating and using a constraint for fuel rods is provided. The method may utilize pin nodal exposures and pin nodal powers to obtain the constraint, calculate rod average exposures and rod average powers (kW/ft) in each fuel assembly, and develop maps... | 09/28/2010 |
| 7787583 | Handling poles for use in nuclear reactors An apparatus and method for manufacturing a handling pole including a pole section, a pole adapter connected to one end of the pole section, a spade member connected to the other end of the pole section, and a nut assembly for connecting adjoining poles. The pole ad... | 08/31/2010 |
| 7668281 | Method and tooling for dismantling, casking and removal of nuclear reactor core structures A method is provided for removing radioactive internals structural members in the core of a reactor pressure vessel in a containment vessel. The method includes placing a first cask in a first internals assembly, detaching radioactive first internals structural memb... | 02/23/2010 |
| 7505546 | Method of preventing separation of feedwater sparger end bracket assemblies A method of preventing separation of a feedwater sparger end bracket assembly comprises installing first and second clamp members of a clamp over a feedwater sparger end bracket assembly in opposition to one another, and leaving the clamp in place to constrain the f... | 03/17/2009 |
| 7430266 | Procedure and means for replacing and procedure for repairing a section of a pipe in the primary circuit of a nuclear reactor Marking of the cuts which have to be made, cutting of the section at two ends, removal of the section which has to be replaced, bevelling of the joint ends of the parts remaining after the section has been cut out from the pipe, adjustment of a new or replacement se... | 09/30/2008 |
| 7409032 | Method of fuel bundle consideration in a reactor A method of fuel bundle consideration in a reactor. The method includes creating or editing bundle groups including fuel bundles. ... | 08/05/2008 |
| 7386087 | Method and device for loading a fuel assembly into the core of a nuclear reactor The invention relates to a method and a device for loading a fuel assembly into the core of a nuclear reactor. The inventive method consists in: inserting a dummy assembly (4) into the loading location (3) of the fuel assembly (5), said dummy as... | 06/10/2008 |
| 7342989 | Apparatuses and methods for mechanical shielding and cooling A transport or storage cask comprises a cask body, a modular thermal conducting and shielding system and a mechanical attachment. The modular thermal conducting and shielding system includes a modular fin and a modular neutron shield. The mechanical attachment retai... | 03/11/2008 |
| 7337183 | Customer extranet portal According to one embodiment of the invention, a computerized method of providing information to a customer in the power industry includes automatically receiving data representing a plurality of characteristics of a power plant device associated with a power plant o... | 02/26/2008 |
| 7333584 | Nuclear power plant and operation method thereof A nuclear power plant and method of operation for augmenting a second reactor thermal power output in a second operation cycle to a level larger than a first reactor thermal power output in the previous operation cycle. The plant is equipped, for example, with a rea... | 02/19/2008 |
| 7330525 | Method and apparatus for maximizing radiation shielding during cask transfer procedures A transfer cask for maximizing the radiation shielding for spent nuclear fuel during cask transfer procedures has a cylindrical inner shell forming a cavity within which a spent nuclear fuel canister can be placed; a cylindrical outer shell concentric with and surro... | 02/12/2008 |
| 7314343 | Miniature manipulator for servicing the interior of nuclear steam generator tubes A manipulator for servicing tubes extending through a tube sheet having three major components: a base member, a block member, and a foot member. The base member has a holder for supporting tooling or inspection devices. The base member also has at least one gripper... | 01/01/2008 |
| 7289590 | Method and apparatus for handling a tube guide of upper interval equipment of a nuclear reactor A device for handling a guide tube assembly. The assembly has an upper tube and a lower tube in each of which there are fixed horizontal guide plates arranged such that they are spaced apart in an axial direction. The handling device itself includes a gripper having... | 10/30/2007 |
| 7282663 | Forge welding process An automated method for forge welding tubulars including heating the tubular ends to be joined in a welding chamber while the heated tubular ends are maintained aligned and parallel relative to each other and at a small spacing, whereupon the heated tubular ends are... | 10/16/2007 |
| 7281309 | Explosion resistant waste container An explosion resistant waste container (10) includes an outer open-topped container (16). The outer open-topped container (16) is sized to receive an inner open-topped container (12) and leave a space therebetween. Both the outer open-top... | 10/16/2007 |
| 7273207 | Bi-directional winch A winch includes a first cable reel and a second cable reel. A driveshaft rotates the first cable reel and the second cable reel. The driveshaft is moveable along an axis of rotation between a first position and a second position. The driveshaft operationally engage... | 09/25/2007 |
| 7270021 | Apparatus and method for mounting and moving a working apparatus on a structure for the performance of works on the structure A working apparatus has: a working equipment for doing works on a structure; an operation mechanism adapted to actively move the working equipment relative to the structure; and an adhering/traveling module coupled to the operation mechanism and adapted to adhere to... | 09/18/2007 |
| 7272204 | Method and apparatus for clamping a riser brace assembly in nuclear reactor An apparatus and method are provided which are designed to structurally replace welds that attach a riser brace assembly to a jet pump riser pipe. The riser brace assembly may include an upper clamp assembly, a lower clamp assembly, and a plurality of mechanical fas... | 09/18/2007 |
| 7267019 | Method of inspecting or utilizing tools in a nuclear reactor environment A method of inspecting or utilizing tools in the underwater environment of a nuclear reactor vessel, a spent fuel pool or equipment pit includes floating a platform for transporting inspection devices and/or tools over an underwater target site and deploying the dev... | 09/11/2007 |
| 7266421 | System for controlling lifting and remote handling units located in a confined enclosure The control system is used to control manipulation equipment (41) and carrying equipment (43) confined in a containment (40) inaccessible to operators and to perform maintenance operations related to electronic circuits for onboard equipment enc... | 09/04/2007 |
| 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 |
| 7226649 | Laser weldable flexible medical tubings, films and assemblies thereof The present invention provides a tubing assembly having a sidewall having a first layer. The first layer is fabricated from a first polymer blend comprising a first component of a material not thermally responsive to laser beam and selected from the group consisting... | 06/05/2007 |
| 7206372 | Methods of repairing leaking elongate hollow members in boiling water reactors In a method for sealing a hollow, elongate member within a reactor pressure vessel of a nuclear reactor, a section of the elongate member may be removed to separate the elongate member into an upper portion and a lower portion with an opening there between. The lowe... | 04/17/2007 |
| 7194060 | Cask and method of manufacturing the cask Heat conductive fins (107) are welded along both sides of a belt-like member (105a) with a margin left along edges of the both sides, thereby to form a unit (105c). The unit (105c) is welded to a body (101) wit... | 03/20/2007 |
| 7155715 | Distributed software system visualization A data management system stores and visualizes data generated during process management. The data management system provides different data management services and definitions of these are stored in a database. Management of data in this database is carried out by a... | 12/26/2006 |
| 7145976 | Procedure and means for replacing and procedure for repairing a section of a pipe in the primary circuit of a nuclear reactor In a nuclear reactor, cooled by pressurized water, an apparatus is employed for replacing a section of a primary circuit primary pipe that interconnects first and second components of a primary circuit. The apparatus cuts out and removes a section of the primary pip... | 12/05/2006 |
| 7139356 | Procedure and means for replacing and procedure for repairing a section of a pipe in the primary circuit of a nuclear reactor Marking of the cuts which have to be made, cutting of the section at two ends, removal of the section which has to be replaced, bevelling of the joint ends of the parts remaining after the section has been cut out from the pipe, adjustment of a new or replacement se... | 11/21/2006 |
| 7139359 | Integrated head assembly for a nuclear reactor An integrated head assembly (100) is disclosed for a nuclear reactor. The preferred integrated head assembly includes a lift assembly (150) that supports the reactor vessel closure head (90) and integrated head assembly for removal, a separate s... | 11/21/2006 |
| 7139353 | Boiling water reactor nuclear fuel assembly lifting support A lifting support for a boiling water reactor nuclear fuel assembly comprising a grappling head configured to allow attachment to a lifting device, a body with an upper end and a lower end, the upper end connected to the grappling head, the body configured to be ins... | 11/21/2006 |
| 7139357 | Reactor servicing platform A method of servicing a nuclear reactor during a reactor outage is provided. The reactor includes a primary containment vessel and a reactor pressure vessel positioned in the primary containment vessel. The method includes positioning a servicing platform above the ... | 11/21/2006 |
| 7139358 | Below grade cask transfer facility A system and method for transferring a canister of spent nuclear fuel from a transfer cask to a receiving cask. In one aspect, the system comprises a below grade opening adapted for receiving a cask; a platform positioned within the opening, the platform capable of ... | 11/21/2006 |
