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| Number | Title | Issue Date |
| 7995700 | Rear door system for transferring hot cell equipment A rear door system for transferring hot cell equipment into or out of a hot cell is disclosed. The rear door system of the present invention includes a rear door, which is provided to a rear wall of the hot cell so as to be movable to open or close the rear wall of ... | 08/09/2011 |
| 7424084 | 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. ... | 09/09/2008 |
| 7397884 | Aligning device for fuel elements of a pressurized water reactor An aligning device for fuel elements allows fuel elements of a pressurized water reactor to be aligned in a comparatively easy and quick manner. To this end, the aligning device for fuel elements includes an aligning body, which extends in a longitudinal direction a... | 07/08/2008 |
| 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 |
| 7321650 | Apparatus for transferring an article between fluid-filled vessels The invention relates to a method for transferring an article from a fluid-filled first vessel into a fluid-filled second vessel or in the opposite direction. The vessel is connected by a connecting element, in which there is a transport device for moving the articl... | 01/22/2008 |
| 7268156 | Carvedilol phosphate salts and/or solvates thereof, corresponding compositions and/or methods of treatment The present invention relates to carvedilol phosphate salts, which include novel crystalline forms of carvedilol dihydrogen phosphate (i.e., dihydrogen phosphate salt of 1-(carbazol-4-yloxy-3-[[2-(o-methoxyphenoxy)ethyl]amino]-2-propanol) and/or carvedilol hydrogen ... | 09/11/2007 |
| 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 |
| 7179346 | Semiconductor apparatus with multiple delivery devices for components An apparatus is provided for transferring components from a pick-up position amongst a supply of components to a placement position on a receptor, such as a die pad, during semiconductor processing. It includes a first delivery device and a second delivery device op... | 02/20/2007 |
| 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 |
| 7026598 | Vector-based targeting control for a water cannon A method for controlling the positioning of a stream of pressurized fluid against a surface zone of a stream generator to clean contaminants. The coordinates of a plurality of points of the surface zone to be cleaned are first determined. The coordinates are measure... | 04/11/2006 |
| 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 |
| 6885718 | Method and apparatus for transferring an article between fluid-filled vessels The invention relates to a method for transferring an article from a fluid-filled first vessel into a fluid-filled second vessel or in the opposite direction. The vessel is connected by a connecting element, in which there is a transport device for moving the articl... | 04/26/2005 |
| 6639961 | Nuclear fuel pellet loading method and machine for same An automated machine for loading nuclear reactor fuel, BP, or APSR pellets from small trays having rows of pellets into reactor rods of long length wherein the pellets are individually counted and loaded into rows of a loading tray according to the desire... | 10/28/2003 |
| 6619712 | Refueling mast retaining tool for a nuclear reactor A retaining tool for a telescoping refueling arm in a nuclear reactor, the retaining tool includes a plurality of support members coupled to a plurality of plates. The retaining tool includes a first plate having a first and a second side, a second plate ... | 09/16/2003 |
| 6452993 | Method of carrying out large-sized apparatus When a radioactivated reactor pressure vessel is carried out from a nuclear reactor building of a nuclear power plant, a first opening portion for carrying out the reactor pressure vessel is provided in a roof of the nuclear reactor building, a radiation ... | 09/17/2002 |
| 6404836 | Removable spent fuel handling machine rail A removable rail assembly for use with a spent fuel handling machine, including a support rail, a rail guide carried by the support rail, a rail joint connector supported by the rail guide for coupling the rail guide to adjacent rails, and at least one ja... | 06/11/2002 |
| 6359953 | Loading machine for transferring closely adjacent elongate articles, in particular fuel elements, and method for simultaneously transferring fuel elements A loading machine for simultaneously transferring fuel elements between a reactor core and a storage rack in a nuclear power station has a mast divided into individual mast parts. Each mast part has its own gripping and guiding devices for gripping and ho... | 03/19/2002 |
| 6320922 | Tool for retracting fuel rods from and inserting fuel rods into a nuclear fuel assembly and methods therefor The extraction tool includes an inner rod pivotally mounting at its distal end a pair of collet sections having mechanical clamping jaws. An outer tube may be advanced and retracted axially relative to the inner rod by a locking tube nut threaded on a sle... | 11/20/2001 |
| 6282254 | Slidable comb assembly for burnable poison rod transfer device A transfer device for moving a poison rod assembly between fuel cells in a nuclear fuel storage facility, where the poison rod assembly has a plurality of poison rods depending from a web. The transfer device includes a frame assembly, a poison rod assemb... | 08/28/2001 |
| 6252922 | Method of handling a nuclear reactor and an apparatus used in the handling method A cask is lifted from outside of a nuclear reactor building through an opening which is opened at a portion of the nuclear reactor positioned just above a nuclear reactor pressure vessel. By maintaining the cask under a lifted condition a shroud which is ... | 06/26/2001 |
| 6198787 | Method of handling a nuclear reactor and an apparatus used in the handling method A method of handling an internal structure of a nuclear reactor utilizing a receptacle such as a container or a cask. A cask, for example, is lifted from outside of a nuclear reactor building through an opening which is opened at a portion of the nuclear ... | 03/06/2001 |
| 6058153 | Preventive maintenance apparatus for structural members in a nuclear pressure vessel A preventive maintenance apparatus for structural members inside a nuclear reactor pressure vessel includes a ring-shaped guide rail having a plurality of lugs which is placed on an upper flange of a core shroud provided inside a reactor pressure vessel. ... | 05/02/2000 |
| 5999584 | Reactor head lift apparatus A rigging system for reactor closure head and reactor internals lifts. The system includes a plurality of latchbox pendants attached to the lifting structure of an overhead crane. A first set of a plurality of lifting lugs is attached to the reactor inter... | 12/07/1999 |
| 5898745 | Nuclear fuel assembly locator A fuel assembly locator for guiding and inserting nuclear fuel assemblies into a grid plate of a reactor vessel during reload. In the preferred embodiment, the fuel assembly locator includes a plurality of generally trapezoidal guides each having a multip... | 04/27/1999 |
| 5898746 | Method and a device for movement correction and positioning The present invention relates to a method and a device for correction of the movements of a suspension device and positioning thereof in a fluid. The suspension device is provided with a first and a second end, and the first end is suspended from a point ... | 04/27/1999 |
| 5737377 | Nuclear reactor camera mast assembly and loading guide A camera mast system permits remote inspection of nuclear fuel assemblies and other components of nuclear reactors. The system includes a camera mast assembly mounted on a refueling mast which may be positioned over a selected fuel assembly in the reactor... | 04/07/1998 |
| 5644607 | Automatic refueling apparatus An automatic refueling apparatus has a travel carriage, a traverse carriage and a fuel assembly grappling apparatus composed of a grapple, an extension pipe and a hoist. The automatic refueling apparatus also includes a system for controlling automatic fu... | 07/01/1997 |
| 5586158 | Apparatus for automatically replacing nuclear fuel assemblies An automatic nuclear fuel assembly replacing apparatus has a bridge and a trolley movable in X and Y axis directions, respectively. Mounted on the trolley is a nuclear fuel grapple movable in a Z axis direction and rotatable about the Z axis. A television... | 12/17/1996 |
| 5490185 | System for automatic refueling of a nuclear reactor A refueling system for a nuclear power plant utilizing a data network to provide for automatic control and enhanced monitoring of the entire fuel transfer process. The refueling system of this invention provides integrated control of the refueling machine... | 02/06/1996 |
| 5377240 | Transfer carriage with interchangeable baskets An improved system for transferring fuel bundles and control blades between a fuel storage pool and a fuel core of a nuclear reactor. The transfer system includes a carriage which is movable horizontally along a track which is submerged in a transfer pool... | 12/27/1994 |
| 5291531 | Auxiliary platform for boiling water reactors An auxiliary platform has a one-ton hoist which may be used in conjunction with a rigid pole handling system. The positioning of the one-ton hoist, as well as the positioning of a trolley on which the hoist is mounted and the positioning of the platform, ... | 03/01/1994 |
| 5291532 | Fuel transfer system A nuclear fuel bundle fuel transfer system includes a transfer pool containing water at a level above a reactor core. A fuel transfer machine therein includes a carriage disposed in the transfer pool and under the water for transporting fuel bundles. The ... | 03/01/1994 |
| 5284374 | Apparatus for remotely handling components The inventive apparatus for remotely handling bar-like components which define a longitudinal direction includes a gripper mechanism for gripping the component including first and second gripper members longitudinally fixedly spaced from each other and or... | 02/08/1994 |
| 5151245 | Device for the sealed opening and closing of a passage interconnecting a central channel of a transportable hollow body and a vertical well formed in a fixed structure The device comprises, in positions adjacent to the bearing surface (15) of the transportable container (1) on the fixed structure, a first member (16) for plugging the central channel (3) of the container (1), and a second member (17) for plugging the upp... | 09/29/1992 |
| 5139733 | Transfer cupboard for a fuel assembly extracted from the core of a nuclear reactor and cooled by an integrated gas circuit The transfer cupboard (1) comprises a solid body (2) made of a radiation-absorbing material, in which is provided an axially directed receptacle (3) for receiving the assembly (4). The cupboard (1) comprises at least one circuit (15) for cooling the assem... | 08/18/1992 |
| 5135707 | Fuel rod alignment template A fuel rod alignment template and method for loading fuel rods in a nuclear fuel assembly. Front and rear guide plates are provided with a plurality of holes corresponding to cells in the fuel assembly to be loaded. The guide plates are rigidly connected ... | 08/04/1992 |
| 5085824 | Nuclear refueling platform drive system A drive system for propelling first and second drive trucks of a bridge includes a first motor and transmission for driving the first truck, an independent second motor and transmission for driving the second truck and a controller for coordinating the fi... | 02/04/1992 |
| 5019327 | Fuel assembly transfer basket for pool type nuclear reactor vessels A fuel assembly transfer basket for a pool type, liquid metal cooled nuclear reactor having a side access loading and unloading port for receiving and relinquishing fuel assemblies during transfer.... | 05/28/1991 |
| 4994231 | Apparatus for blending constituents of varying densities A blending/loading system wherein an elongated cylinder or fuel rod is positioned on a turntable underneath a series of hoppers containing the particulates to be blended/loaded. Separate transfer tubes from each hopper are aligned with the cylinder and ar... | 02/19/1991 |
