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| Number | Title | Issue Date |
| 7330526 | System and method of storing high level waste A system and method for storing high level waste. In one aspect, the invention is a system comprising: an inner shell forming a cavity for receiving high level waste, the cavity having a top and a bottom; an outer shell surrounding the inner shell so as to form a sp... | 02/12/2008 |
| 7305762 | Method for production of a rotor of a centrifugal compressor An improved method for production of a rotor (10) of a centrifugal compressor, wherein the rotor (10) is produced from a monolithic disc; this disc is worked in a radial direction by at least one tool (20) of a numerical control machine, such as... | 12/11/2007 |
| 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 |
| 7069654 | Rotor balancing A method of balancing a rotor (10), the said method comprising the steps of determining the position of the center of mass of a rotor (10) to be balanced prior to the rotor (10) being machined to its final dimensions, and machining the rotor ( | 07/04/2006 |
| 6922455 | Gas-target neutron generation and applications Described herein are integrated systems for generating neutrons to perform a variety of tasks including: on-line analysis of bulk material and industrial process control (as shown in FIG. 1), security interrogation (as shown in FIG. 2), soil and enviro... | 07/26/2005 |
| 6793450 | 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 ... | 09/21/2004 |
| 6788755 | Safe lift and process for transporting canisters of spent nuclear fuel A system and method for moving a canister of spent nuclear fuel from a first location, which may be within a nuclear power generation facility to a second location such as a storage cask that is used for short-term or long-term storage of spent nuclear fuel includes... | 09/07/2004 |
| 6773219 | Control rod drive handling assembly for a nuclear reactor A positioning apparatus for a CRD handling assembly for a nuclear reactor. The positioning apparatus includes at least one linear slide rail, a drive screw coupled to the at least one slide rail, an elevator movably coupled to the drive screw, and at least one linea... | 08/10/2004 |
| 6723037 | Protective tool for therapeutic material delivery device, cartridge for therapeutic material delivery device, and a therapeutic material delivery device A protective tool for a therapeutic material delivery device prevents wrong sticking of the outer needle of the device after use and prevents dissipation of blood adhering to the outer needle and comprises a cover (8′A) and a cap (61) or stopper (... | 04/20/2004 |
| 6674828 | Safe lift and process for transporting canisters of spent nuclear fuel A system and method for moving a canister of spent nuclear fuel from a first location, which may be within a nuclear power generation facility to a second location such as a storage cask that is used for short-term or long-term storage of spent nuclear fu... | 01/06/2004 |
| 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 |
| 6625248 | Process for the treatment of radioactive graphite A process for the treatment of radioactive graphite which includes the following steps: (i) reacting the radioactive graphite at a temperature in the range of from 250° C. to 900° C. with superheated steam or gases containing water vapor to form hydroge... | 09/23/2003 |
| 6474923 | Sample push-out fixture This invention generally relates to the remote removal of pelletized samples from cylindrical containment capsules. V-blocks are used to receive the samples and provide guidance to push out rods. Stainless steel liners fit into the v-channels on the v-blo... | 11/05/2002 |
| 6459749 | Multi-functional head for spent nuclear fuel rod extraction A fuel rod extracting machine which can extract the fuel rods one by one from a Korean type 17×17 Light Water Reactor fuel assembly comprises a multi-functional rotary head including a camera for measuring the positions of the fuel rods and securing nuts... | 10/01/2002 |
| 6354780 | Eccentric balanced blisk A blisk includes a disk having a rim from which extends a row of blades. The rim includes axially opposite overhangs one of which includes an arcuate balance land disposed eccentrically to the centerline axis of the disk for balancing the blisk.... | 03/12/2002 |
| 6327320 | Tube loading apparatus An apparatus for succesively loading solid objects (19) into a tube (27), for instance, nuclear fuel pellets into a nuclear fuel tube, includes means (17) for feeding the objects towards one, open end (29) of the tube. A reduced pressure is induced betwee... | 12/04/2001 |
| 5906574 | Apparatus for vacuum-assisted handling and loading of radioactive seeds and spacers into implant needles within an enclosed visible radiation shield for use in therapeutic radioactive seed implantation A vacuum assisted handling and loading of radioactive seeds into implant needles from a lead glass shielded glass tube and with seeds manipulated within an enclosed visible radiation shield. Radioactive seeds and spacers are located on a loading platform ... | 05/25/1999 |
| 5862195 | Canister, transport, storage, monitoring, and retrieval system A conveyance system provides for storing, monitoring, and retrieving (multi-purpose) canisters "MPC" for intermediate storage of spent fuel rods from nuclear power plants. The system includes a shielded transport system, an access corridor shielded for ra... | 01/19/1999 |
| 5733088 | Packaging and storage containers, especially for remote-handled hazardous waste, and process for filling them The disclosure relates to packaging and storage containers suitable particularly for the packaging and storage, with optimum filling, of remote-handled hazardous waste; a process for filling the containers; and the implementation of the process for the pa... | 03/31/1998 |
| 5646969 | Apparatus for installing tie rod assembly in space between jet pump assemblies with limited vertical access A tool for protecting a boiling water reactor component against damage by a shroud repair assembly suspended from a cable and lowered into the downcomer annulus. The tool has a roller with an outer surface made of a material which will not scratch the sur... | 07/08/1997 |
| 5607353 | Airlock system In an airlock system, through which drums containing radioactive material are transferred into a containment area, a passage has an intermediate region, of reduced cross section relative to the inlet and outlet ends of the passage. The passage has a conve... | 03/04/1997 |
| 5504343 | Device for storing cylindrical objects with fast charging and discharging A device for storing cylindrical objects, such as small containers (14) containing radioactive material samples, includes one or more superimposed rotary racks (30, 30'). Each of the racks has circumferentially distributed cavities (32, 32') in which the ... | 04/02/1996 |
| 5491737 | Material handling and inspection apparatus and method According to the present invention, a material handling system for transporting a device to or from a radiation chamber in which the device is inspected is provided. The system includes a shuttle carriage having a base and two opposing walls, a conveyor m... | 02/13/1996 |
| 5482169 | Cable lifting device for handling heavy loads within a tight shielded enclosure A lifting device makes it possible to manipulate loads within a tight enclosure with an operator remaining outside the enclosure. The device includes a main arm fitted so as to slide in an opening of a wall surrounding the enclosure, by way of a hose or s... | 01/09/1996 |
| 5448604 | Cask transport, storage, monitoring, and retrieval system A transport, storage, monitoring, and retrieval system for casks including intermediate storage of spent fuel rods from nuclear power plants. The system consists of a powered rail transport car which carries a cask standing on its end. A cross-ways travel... | 09/05/1995 |
| 5347554 | Outer filter removal tool An improved tool for removing a highly contaminated outer filter from a control rod drive during a maintenance operation. The tool slides onto the control rod drive and surrounds the outer filter with a shield. The shield has a window for removing the scr... | 09/13/1994 |
| 5342158 | Handling and deploying radioactive sources A radioactive source is mounted at one end of a rod and a ball-shaped coupler is disposed at the other end of the rod. An apparatus for handling a plurality of radioactive sources respectively mounted at one end of a plurality of rods having a ball-shaped... | 08/30/1994 |
| 5326211 | Airlock system An air lock system for the transfer of large containers into a containment comprises a set of horizontally and vertically slidable doors adapted to define a variable opening for the passage of containers. The set of doors cooperate with a further precedin... | 07/05/1994 |
| 5324331 | Transport system, in particular for transporting silicon monocrystals through the tank of a research reactor The invention pertains to a transport system for transporting containers or products within and along an essentially vertical tube with concurrent rotation of the containers on the axis of the tube. In order to facilitate simple construction despite condi... | 06/28/1994 |
| 5297917 | Method of acting remotely in a mine shaft, in particular in a site for deep storage of nuclear wastes A method of remote control of a mobile carriage including at least one transmit and receive antenna for movement into an underground gallery connected to the surface by a shaft provided with an elevator for effecting deep storage of radioactive wastes. Th... | 03/29/1994 |
| 5287676 | Device for handling radioactive waste A device for handling liquid radioactive waste includes a heater for heating and drying liquid radioactive waste being poured into a container. A pallet, which is preferably formed of metal, receives the container. A ground vehicle transports the pallet. ... | 02/22/1994 |
| 5226781 | Process and installation for transferring products from a contaminated enclosure into a second enclosure without contaminating the latter For transferring products from a contaminated enclosure (12) into a second enclosure (16) without contaminating the latter, it is proposed to engage on the contaminated enclosure a transportation container (20), in which is placed an empty transfer chambe... | 07/13/1993 |
| 5131797 | Swipe transfer assembly The swipe transfer assembly is a mechanical assembly which is used in conjunction with glove boxes and other sealed containments. It is used to pass small samples into or out of glove boxes without an open breach of the containment, and includes a rotatio... | 07/21/1992 |
| 5069863 | Dual winch nuclear fuel transfer system providing more reliable fuel transfer during refueling operations A transfer system moves fuel assemblies along a track extending through a transfer tube within a containment wall in a nuclear power plant between the auxiliary building side and the containment building side. A car carries a basket for the assemblies. Tw... | 12/03/1991 |
| 5019324 | Centering arrangement for aligning the mutually adjacent openings of a lock and a container for holding radioactive materials The invention is directed to a centering arrangement for aligning two mutly adjacent openings of a lock and a container for receiving radioactive waste which is passed into the container through the lock. The container is provided with additional opening... | 05/28/1991 |
| 5011651 | Arrangement for transferring fuel rods from a first receptacle to a second receptacle The invention is directed to an arrangement for transferring irradiated f rods from a trough-shaped receptacle into a canister intended for terminal storage. The canister is docked at a pass-through opening formed in a partition wall of a nuclear facilit... | 04/30/1991 |
| 4976579 | Flask assembly for contaminated objects A flask assembly for the transfer of objects, in particular objects contaminated by radioactivity, into and out of an enclosure. The assembly includes a levelling system to sit over a posting port in an enclosure for the objects and which supports a stool... | 12/11/1990 |
| 4975240 | Docking arrangement for connecting a transport and storage container to a radioactively charged work chamber The invention relates to a docking arrangement for docking a transport container to a lock opening of a radioactively charged work chamber for loading and unloading radioactive materials. In order to dock the heavy transport container precisely at the loc... | 12/04/1990 |
| 4942661 | Apparatus for performing the remotely-manipulated installation and removal of detachable conduit units The invention is directed to an apparatus for performing the remotely-manlated installation and removal of a pass-through conduit unit into and out of a channel formed in a partition wall. A feed assembly is part of the apparatus and includes a plurality... | 07/24/1990 |
| 4927313 | Nuclear fuel pellet sintering boat unloading apparatus and method A nuclear fuel pellet unloading apparatus includes a transfer housing pivotally movable between an upright position remote from a pellet deposit site and an inverted position adjacent to the deposit site, and convertable between opened and closed conditio... | 05/22/1990 |
