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| Number | Title | Issue Date |
| 8158962 | Single-plate neutron absorbing apparatus and method of manufacturing the same A neutron absorbing insert for use in a fuel rack and method of manufacturing the same. In ones aspect, the invention is a neutron absorbing apparatus for insertion into a fuel rack comprising: a sleeve having a first wall and a second wall, the first and second wal... | 04/17/2012 |
| 7705335 | Security protection device and method A method, device and retrofitting kit is disclosed that will protect materials that are housed within a storage device from one or more forms of radiographic imaging. A target subject is at least partially covered with a first and second layer of radiographic cloaki... | 04/27/2010 |
| 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 |
| 7335902 | Container for storing radioactive materials A urethane based polymer composition is provided that exhibits superior shielding properties during and after exposure to high level radiation. The composite is formed by mixing a liquid isocyanate monomer, preferably 4,4′-diisocyanate monomer with a liquid phenol... | 02/26/2008 |
| 7327821 | Cask, composition for neutron shielding body, and method of manufacturing the neutron shielding body A cask includes a trunk body that includes a basket having a square pipe or a plate member forming a cell that contains a spent fuel assembly, and a neutron shield that is formed by filling a composition for neutron shielding between the trunk body and an outer cove... | 02/05/2008 |
| 7312466 | High efficiency shield array Embodiments of a radiation shield are disclosed. One non-limiting embodiment of the radiation shield may comprise a first layer, a second layer, and a third layer. The first layer may include a neutron moderating material. The second layer may be adjacent the first ... | 12/25/2007 |
| 7295646 | Method for producing a coating for absorption of neutrons produced in nuclear reactions of radioactive materials The invention relates to a method for producing a coating for absorption of neutrons produced in nuclear reactions of radioactive material which can be applied in an economically feasible and simple manner, increases the effectivity of absorption, enables greater va... | 11/13/2007 |
| 7294375 | Cement composite, concrete, concrete cask and method of manufacturing concrete The invention provides a composite from which concrete featuring a sufficiently high heat resistance can be produced, as well as a high-safety sealed concrete cask having no opening (shielding defect) to offer high shielding performance that can prevent corrosion of... | 11/13/2007 |
| 7286626 | Neutron absorbing coating for nuclear criticality control A neutron absorbing coating for use on a substrate, and which provides nuclear criticality control is described and which includes a nickel, chromium, molybdenum, and gadolinium alloy having less than about 5% boron, by weight. ... | 10/23/2007 |
| 7250119 | Composite materials and techniques for neutron and gamma radiation shielding This invention deals with multi-component composite materials and techniques for improved shielding of neutron and gamma radiation emitting from transuranic, high-level and low-level radioactive wastes. Selective naturally occurring mineral materials are utilized to... | 07/31/2007 |
| 7176472 | Radioactive substance container, manufacturing apparatus thereof and manufacturing method thereof In the metal billet to be used for hot dilation forming, a forward side with respect to the pressing direction has a quadrate section and its diagonal length is not more than an inner diameter of a container. Moreover, a backward side with respect to the pressing di... | 02/13/2007 |
| 7170073 | Stainless steel product containing B and method for production thereof A stainless steel slab containing B, wherein a protecting material is joined onto at least two faces across the bloom from each other in a stainless steel bloom containing B of 0.3–2.5 mass %, being integrated into one-piece by forming a weld metal comprising a st... | 01/30/2007 |
| 7163752 | Shielded system with a housing having a high atomic number metal coating applied by thermal spray technique A radiation-shielded system and method of producing a radiation-shielded system having at least one component susceptible to disruption upon exposure to ionizing radiation, wherein the susceptible component is protected by a rigid housing having a metallic layer of ... | 01/16/2007 |
| 6958483 | Container device for the storage of hazardous materials and a method of making it A container device (10) for storing hazardous material comprises a substantially cylindrical container block which has a central axial cylindrical through passage (13) and includes a group of storage vessels (12) for the hazardous material posit... | 10/25/2005 |
| 6927407 | Radiation shielding arrangement A radiation shielding arrangement for shielding high-energy neutron radiation and gamma radiation from high-energy particle accelerators or storage rings includes a shielding element made of water-containing material, for example with chemically bound water or water... | 08/09/2005 |
| 6919576 | Composite neutron absorbing coatings for nuclear criticality control Thermal neutron absorbing composite coating materials and methods of applying such coating materials to spent nuclear fuel storage systems are provided. A composite neutron absorbing coating applied to a substrate surface includes a neutron absorbing layer overlying... | 07/19/2005 |
| 6805815 | Composition for shielding radioactivity A urethane based polymer composition is provided that exhibits superior shielding properties during and after exposure to high level radiation. The composite is formed by mixing a liquid isocyanate monomer, preferably 4,4′-diisocyanate monomer with a liquid phenol... | 10/19/2004 |
| 6784443 | Storage vessels and related closure methods A preferred storage system includes a container, a closure lid, and a compression link. Preferably, the container includes an outer wall, which defines an interior, and a first open end. The closure lid is configured to be inserted within the open end of the contain... | 08/31/2004 |
| 6718000 | Ventilated vertical overpack An apparatus, system, and method of storing and transferring a canister of spent nuclear fuel. In one aspect, the apparatus is a lid for a ventilated vertical overpack having a chamber for receiving spent nuclear fuel, the lid having ventilation ducts. In one aspect... | 04/06/2004 |
| 6683931 | Unirradiated nuclear fuel transport system An unirradiated nuclear fuel assembly transport canister that includes a clamshell type fuel assembly inner liner that has interior dimensions that closely conform to the outer envelope of the fuel assembly to be transported and exterior dimensions that c... | 01/27/2004 |
| 6665365 | Storage container for radioactive materials The basket comprises a bundle of tubes (10) connected to each other by an assembly structure (14) so as to form a regular network of compartments (16). Cross pieces (12) are placed between the tubes (10) so as to define a second wall approximately continu... | 12/16/2003 |
| 6630683 | Antiradiation concrete and antiradiation shell A first antiradiation concrete includes a metallic aggregate having a grain size of up to 7 mm, and at least 5.0% by weight, in particular at least 7.8%, of a boron-containing aggregate having a grain size of up to 1 mm and being finer-grained than the me... | 10/07/2003 |
| 6625247 | Cask and production method of cask, and embedded form A lightweight cask comprises a barrel body which shields gamma rays. A resin which shields neutrons is provided on the periphery of the barrel body. A basket is made of a plurality of square pipes having neutron absorbing ability. There is a cavity inside... | 09/23/2003 |
| 6608319 | Flexible amorphous composition for high level radiation and environmental protection An improved nuclear shielding material that is flexible so as to effectively fill voids in radiation containment structures. Under very high temperatures the material is designed to undergo pyrolysis and transform into a strong ceramic material. The mater... | 08/19/2003 |
| 6605818 | Method for protecting against ionizing radiation using a sprayed protective coating, and a protected structure A housing and the structure within its interior is protected by spraying a protective coating overlying and contacting at least a portion of the housing. The protective coating is an ionizing radiation protective material such as a neutron-shielding mater... | 08/12/2003 |
| 6605817 | Neutron shield and cask that uses the neutron shield A neutron shield formed by blending two-part reactive cold-setting epoxy resin consisting of long-chain aliphatic glycidyl ether epoxy resin containing reactive diluent as main component, and a mixture of alicyclic polyamine, polyamide polyamine, aliphati... | 08/12/2003 |
| 6570950 | Nuclear plant containment with prefabricated component support structure A nuclear steam supply containment system employing prefabricated component supports that are surrounded by steel concrete forms and anchored to the floor liner of a nuclear containment. The prefabricated component supports extend through the concrete for... | 05/27/2003 |
| 6529573 | Proton recoil scintillator neutron rem meter A neutron rem meter utilizing proton recoil and thermal neutron scintillators to provide neutron detection and dose measurement. In using both fast scintillators and a thermal neutron scintillator the meter provides a wide range of sensitivity, uniform di... | 03/04/2003 |
| 6517743 | Epoxy resin composition having high neutron shielding ability, and a transparent shielding materials for neutron obtained by curing said epoxy resin composition An epoxy resin composition which is cured transparent product having high neutron shielding capability, comprised by an epoxy resin without any not transparent inorganic substances and a hardener and characterized by said composition's viscosity at ambien... | 02/11/2003 |
| 6452994 | Systems and methods for storing exothermic materials A system for storing exothermic materials to enhance heat removal is provided that includes a first canister and a second canister. Preferably, the first canister incorporates a canister wall defining a first storage volume that is adapted to receive exot... | 09/17/2002 |
| 6442227 | Sleeve assembly for nuclear fuel racks A sleeve assembly for refurbishing a fuel rack having cells in which fresh or spent nuclear fuel assemblies may be stored, in which the cells have elongate rack walls extending from a rack base plate and the rack base plate has flow holes communicating wi... | 08/27/2002 |
| 6409440 | Method for cutting a piece of sheet metal used to hold a layer of neutron-absorbing material on a wall of an atomic fuel assembly storage rack cell The present invention relates to a method for refurbishing an atomic fuel assembly storage rack the partitions (10) of which include a layer (14) of neutron-absorbing material between a wall (16) and a more or less rectangular piece of sheet metal (18) we... | 06/25/2002 |
| 6232383 | Nuclear resistance cell and methods for making same The present invention is a shielding material that resists both nuclear radiation and high temperatures and is especially suited to encasing radioactive waster materials to immobilize them. The material is a mixture comprised of two or more organic polyme... | 05/15/2001 |
| 6166390 | Radiation shielding composition A composition for use as a radiation shield. The shield is a concrete product containing a stable uranium aggregate for attenuating gamma rays and a neutron absorbing component, the uranium aggregate and neutron absorbing component being present in the co... | 12/26/2000 |
| 6061414 | Process for the renovation of a nuclear fuel assembly storage rack Process for the renovation of a nuclear fuel assembly storage rack. For the renovation of a nuclear fuel assembly storage rack, whereof the bulkheads (10) incorporate a neutrophage material sheet held between the partition (16) and a plate (18) welded to said ... | 05/09/2000 |
| 5965056 | Radio wave absorbent A radio wave absorbent comprises an Ni--Cu--Zn base ferrite having a major composition comprising 49 to less than 50 mol % of Fe2 O3, 32 to 35 mol % of ZnO, 3 to 9 mol % of CuO and 9 to 14 mol % of NiO. The radio wave absorbent furth... | 10/12/1999 |
| 5937598 | Window for protecting against radiation A window for protecting against the radiation from cells or chambers in nuclear plants includes at least one optical unit which provides protection against high-energy and/or neutron radiation, and a frame, the space between the optical unit and the frame... | 08/17/1999 |
| 5926516 | Absorption structure for absorbing neutrons and method for producing an absorption structure An absorption structure for absorbing neutrons and a method for producing the absorption structure include placing a neutron-absorbing material between a first sheet and a second sheet. The sheets are joined together and a plurality of voids is formed bet... | 07/20/1999 |
| 5841825 | Neutron absorbing apparatus A neutron absorbing apparatus which includes two adjacent neutron absorbing plates and a mounting assembly with latching means configured to be easily secured to fuel assemblies while the fuel assemblies remain under water in a fuel storage rack, thereby ... | 11/24/1998 |
| 5786611 | Radiation shielding composition A composition for use as a radiation shield. The shield is a concrete product containing a stable uranium aggregate for attenuating gamma rays and a neutron absorbing component, the uranium aggregate and neutron absorbing component being present in the co... | 07/28/1998 |
