Having Plural Storage Compartments Or Plural Nested Receptacles Patents (Class 250/507.1)
  • Patent number: 10460844
    Abstract: A nuclear reactor containment system including a nuclear reactor and a container enclosing the nuclear reactor. The container includes a number of heat removal systems each having an active state and an inactive state, wherein the heat removal systems dissipate heat from the container more efficiently in the active state than in the inactive state, and wherein the heat removal systems are structured to switch from the inactive state to the active state based on a temperature of the container.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: October 29, 2019
    Assignee: Westinghouse Electric Company LLC
    Inventors: Yasir Arafat, Jurie Van Wyk
  • Patent number: 9947424
    Abstract: An object of the invention is to provide a radiation-shielding material that has a high radiation-shielding capability and can be easily coated, molded and sheeted. Metals or the like having a radiation-shielding capability are blended with an elastomer precursor in a high concentration thereby providing a radiation-shielding material that has a higher radiation-shielding capability than ever before and can be easily coated, molded and sheeted in any desired configuration.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: April 17, 2018
    Assignees: D&D CORPORATION, RICANAL CORPORATION
    Inventors: Katsuhiko Sano, Shigekazu Mizukoshi, Isamu Takeuchi, Yuji Ishida, Yukou Kurimoto, Takayoshi Fujino
  • Patent number: 9896352
    Abstract: A vessel for removing radionuclides from a liquid. The vessel comprises a shielded housing comprising an outer shell and an inner shell disposed within the outer shell. The housing defines an ion exchange chamber between the inner and outer shells. The vessel also comprises an inlet fluidly coupled with the ion exchange chamber, the inlet being configured for fluid communication with a source of the liquid, and an outlet fluidly coupled with the ion exchange chamber, the outlet being configured for fluid communication with a destination of the liquid. The vessel further comprises a first fluid passage extending between an exterior of the vessel and the inner shell and a second fluid passage extending between the exterior of the vessel and the inner shell.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: February 20, 2018
    Assignee: AVANTech, Inc.
    Inventors: Tracy A. Barker, James L. Braun
  • Patent number: 9852822
    Abstract: An underground ventilated system for storing nuclear waste materials. The system includes a storage module having an outer shell defining an internal cavity and an inner shell. A majority of the height of the outer shell may be disposed below grade. The outer shell may include a hermetically sealed bottom. First and second canisters are positioned in lower and upper portions within the cavity respectively in vertically stacked relationship. A centering and spacing ring assembly is interspersed between the first and second canisters to transfer the weight of the upper second canister to the lower first canister. The assembly may include centering lugs which laterally restrain the first and second canisters in case of a seismic event. A natural convection driven ventilated air system cools the canisters to remove residual decay heat to the atmosphere. In one non-limiting embodiment, the shells are made of steel.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: December 26, 2017
    Inventor: Krishna P. Singh
  • Patent number: 9831005
    Abstract: A module for storing high level radioactive waste includes an outer shell, having a hermetically closed bottom end, and an inner shell forming a cavity and being positioned inside the outer shell to form a space therebetween. At least one divider extends from the top to the bottom of the inner shell to create a plurality of inlet passageways through the space, each inlet passageway connecting to a bottom portion of the cavity. A plurality of inlet ducts each connect at least one of the inlet passageways and ambient atmosphere, and each includes an inlet duct cover affixed atop a surrounding inlet wall, the inlet wall being peripherally perforated. A removable lid is positioned atop the inner shell and has at least one outlet passageway connecting the cavity and the ambient atmosphere, the lid and the top of the inner shell being configured to form a hermetic seal therebetween.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: November 28, 2017
    Inventor: Krishna P. Singh
  • Patent number: 9761339
    Abstract: A system and method for storing multiple canisters containing high level waste below grade that afford adequate ventilation of the spent fuel storage cavity. In one aspect, the invention is a ventilated system for storing high level waste emitting heat, the system comprising: an air-intake shell forming an air-intake cavity; a plurality of storage shells, each storage shell forming a storage cavity; a lid positioned atop each of the storage shells; an outlet vent forming a passageway between an ambient environment and a top portion of each of the storage cavities; and a network of pipes forming hermetically sealed passageways between a bottom portion of the air-intake cavity and at least two different openings at a bottom portion of each of the storage cavities such that blockage of a first one of the openings does not prohibit air from flowing from the air-intake cavity into the storage cavity via a second one of the openings.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: September 12, 2017
    Inventor: Krishna P. Singh
  • Patent number: 9640289
    Abstract: A fuel storage system for storing and drying nuclear fuel rods includes a vertically oriented capsule defining an internal cavity. A plurality of fuel rod storage tubes is disposed in the cavity. In one embodiment, each storage tube has a transverse cross section configured and dimensioned to hold no more than one fuel rod. Intact or damaged fuel rods may be stored in the storage tubes. After the fuel rods are loaded into the capsule, a lid is attached to a previously open top end of the capsule. In one embodiment, the lid may be sealed welded to the capsule for forming a gas tight enclosure. The interior of the capsule and multiple fuel rods contained therein may be dried together simultaneously via flow conduits formed in the lid that can be fluidly connected to a suitable drying process such as a forced gas dehydration system.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: May 2, 2017
    Inventors: Richard M. Springman, Stephen J. Agace, Krishna P. Singh
  • Patent number: 9566380
    Abstract: A description of a bottle container assembly for use by patients for daily handling of glass insulin ampules and/or a variety of prescription medications and small medicine bottles. The container assembly is designed for frequent daily use at home, work or travel. It is constructed to address the safe handling, use and safe storage of medicines and in particular the storage of a variety of glass ampules containing insulin or other hypodermic solutions. The invention provides a safe, suitable and reusable container assembly to hold various insulin ampules replacing the fragile cardboard boxes they are shipped in by the manufacturers.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: February 14, 2017
    Inventor: Robert K. Tcholakian
  • Patent number: 9543049
    Abstract: An apparatus for holding radioactive objects includes a base and a central pillar extending upwardly between a bottom end coupled to the base and a top end above the base. A plurality of inner segments are spaced around the central pillar, and a plurality of outer segments are spaced around the inner segments to form pairs. The inner segments, the outer segments and the central pillar may be coupled together to permit limited radial movement of at least one of the segments of each pair. Each pair may define a generally vertical, object-receiving channel arranged between the inner and outer segment of the pair. The segments of each pair may be adapted to bear against an object in the channel of the pair to laterally restrain the object and facilitate heat transfer from the object.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: January 10, 2017
    Assignee: ATOMIC ENERGY OF CANADA LIMITED / √ČNERGIE ATOMIQUE DU CANADA LIMIT√ČE
    Inventors: Malcolm James Clough, Austin Thomas Jackson, Clifford John Joseph Dugal, Daniel Harry Martin, James Edward Allan McGregor, William Thomas Diamond
  • Patent number: 9460821
    Abstract: A system for receiving and storing high level radioactive waste comprising: an enclosure comprising walls having inlet ventilation ducts, a roof comprising an array of holes, and a floor; an array of metal shells located in an internal space of the enclosure, the array of metal shells being co-axial with the array of holes in the roof so that containers holding high level radioactive waste can be lowered through the array of holes in the roof and into the array of metal shells; the array of metal shells acting as load bearing columns for the roof; and each of the metal shells comprising (i) an expansion joint for accommodating thermal expansion and/or contraction of the metal shells; and (ii) one or more holes at a bottom portion of the metal shell.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: October 4, 2016
    Inventors: Krishna P. Singh, Stephen J. Agace
  • Patent number: 9349493
    Abstract: A concrete storage module (26) is adapted to slideably receive a cylindrical canister assembly (12) therein. Heat dissipation fins (62) and a tubular heat shield (96) are disposed within the module to help dissipate heat emitted from the nuclear fuel assemblies stored in the canister to air flowing through the module. The canister assembly (12) is composed of a basket assembly (70) constructed from multi-layer structural plates disposed in cross-cross or egg carton configuration. A single port tool (106) is provided for draining water from the canister (12) and replacing the drain water with make-up gas. The single port tool is mounted in the cover (100) of the canister and is in fluid flow communication with the interior of the canister.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: May 24, 2016
    Assignee: Areva Inc.
    Inventors: William Bracey, Thomas van Riper, Uwe Wolf, Jayant Rajabhau Bondre, Kamran Tavassoli, Raheel Haroon
  • Patent number: 9040946
    Abstract: The invention relates to a thermal conduction element (20) for a package for transporting and/or storing radioactive materials, comprising: an internal part (30) intended to be in contact with a lateral body (14) of the package; an external part (34) intended to form a portion of an external envelope (24) of said package, holding radiological protection means (22); an intermediate part (32) arranged between the internal and external parts, the internal, external and intermediate parts being produced from copper and one of the alloys thereof. According to the invention, the external part (34) is equipped, at each of its two opposite ends, with an area (36) for connection by welding to another thermal conduction element (20), each connection area (36) being produced from steel.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: May 26, 2015
    Assignee: TN INTERNATIONAL
    Inventors: Herve Ripert, Emmanuel Mercier, Sylvain Lauret
  • Publication number: 20150123021
    Abstract: A product cartridge for a radionuclide including a product vial having a permeable cap and surrounded by a radiation shield and a filling cartridge having a separate radiation shield, the filling cartridge is supported adjacent the permeable cap by coupling the radiation shield of the filling cartridge to the radiation shield of the product vial, the filling cartridge is moveable within the radiation shield of the filling cartridge to engage and pierce the permeable cap during filling of the product vial, the filling cartridge includes an aperture on an end opposite the product vial that receives a radionuclide, a scavenger that removes heavy metals from the radionuclide and a filter that filters the biological contaminants, simultaneously venting the product vial as the radionuclide flows from the aperture through the filling cartridge and into the product vial.
    Type: Application
    Filed: October 30, 2014
    Publication date: May 7, 2015
    Inventor: Glenn H. Isensee
  • Patent number: 9005452
    Abstract: A device for purifying a fluid is disclosed. The aforesaid device comprises: (a) a passage adapted for conducting a flow of the fluid, said passage provided with input and output openings; (b) a plurality of elongate members coated with a titanium oxide disposed within the passage; (c) fastening means for mechanically fixating terminals of the elongate members within the passage; (d) at least one source of ultraviolet radiation adapted for illuminating the elongate members; (e) pumping means adapted for generating the fluid flow through the passage from the input opening to the output opening. The fastening means comprises at least two fasteners. Each fastener comprises two mutually orthogonal spaced apart pluralities of parallel rods. The rods are adapted for restricting lateral displacement of the elongate members.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: April 14, 2015
    Inventors: Alex Arenshtam, Pinchas Maman
  • Publication number: 20150069274
    Abstract: A container system, for radioactive waste and method for using the same is provided. The system includes a canister configured for holding radioactive waste and a lid system. In one embodiment, the lid system comprises a two-part lid assembly including a confinement lid and a shielded lifting lid. The confinement lid is detachably mounted to the confinement lid. In use, the lifting lid supports die confinement lid for lifting and placement on the canister. The lifting lid further shields operators while the confinement lid is mounted to the canister. Thereafter, the lifting lid is removed and may be reused for confinement lid mountings on other canisters. In one embodiment, the confinement lid is bolted to the canister. The canister may be disposed in a protective overpack for transport and storage.
    Type: Application
    Filed: April 15, 2013
    Publication date: March 12, 2015
    Applicant: Holtec International, Inc.
    Inventor: Stephen J. Agace
  • Publication number: 20150060705
    Abstract: A method of transferring a radioactive payload and a method of performing work within a cavity of a shielding container. In one embodiment, the invention is a method comprising a) positioning a shield-gate apparatus atop a first shielding container, the shield-gate apparatus comprising a body, a passageway extending through the body, and one or more movable shielding gates that are open; and b) lifting a removable shielding lid of the first shielding container through the passageway, wherein during closing of the one or more shielding gates the removable shielding lid is maintained in a position in which either: (1) a bottom surface of the removable shielding lid is disposed within the passageway at a height above the one or more shielding gates; or (2) the bottom surface of the removable shielding lid is substantially flush with the top surface of the body of the shield-gate apparatus.
    Type: Application
    Filed: November 6, 2014
    Publication date: March 5, 2015
    Inventor: Stephen J. AGACE
  • Patent number: 8927954
    Abstract: A packaging device for the transport and/or storage of a radioactive medium generating flammable gases and/or explosives via radiolysis, comprising a plurality of canisters intended to contain the radioactive medium, each canister defining an inner storage space accessible via an opening for filling the medium, on which plug-forming means are mounted. According to the invention, the device also comprises a structure forming a chamber, and means for placing in communication allowing a fluid communication to be set up between the inner storage space and the chamber.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: January 6, 2015
    Assignee: TN International
    Inventors: Mohamed Zibouche, Florent Ferry, Patrick Jacot
  • Patent number: 8917809
    Abstract: The present invention is directed to a new manufacturing process for a FRP honeycomb structure where the honeycomb core assembly is arranged parallel to the surface. The honeycomb core is made from FRP prepreg with double structural walls and is manufactured by stiffening using heat and pressure. In a honeycomb core assembly set tank, a plurality of internal tanks are gathered in honeycomb core assembly. An internal tank FRP wall maintains the pressure of the internal tank, while an external FRP wall, heat foamed plastic resin and rigid FRP hull of set tank endure the external shock loading. A honeycomb core structure of six-corner cell can be infinitely arranged, and its structural position is unique. A set tank in which a plurality of internal tanks are gathered into a honeycomb core assembly can be arranged in infinite combinations, such that the total capacity can be extremely large.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: December 23, 2014
    Inventor: Tsukasa Nozawa
  • Patent number: 8905259
    Abstract: A system for storing high level radioactive waste. In one embodiment, the invention can be a system comprising an overpack body extending along a vertical axis and having a cavity for storing high level radioactive waste, the cavity having an open top end and a floor; an overpack lid positioned atop the overpack body to enclose the open top end of the cavity; an air inlet vent for introducing cool air into the cavity, the air inlet vent comprising an annular air inlet plenum and an annular air inlet passageway, the annular air inlet plenum extending radially inward from an outer surface of the overpack body to the annular air inlet passageway, the annular air inlet passageway extending upward from the annular air inlet plenum to an opening in the floor, and an air outlet vent in the overpack lid for removing warmed air from the cavity.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: December 9, 2014
    Inventors: Krishna P. Singh, John D. Griffiths
  • Patent number: 8908821
    Abstract: A storage container is carried into a nuclear-reactor containment, and then, the core structure is housed in the storage container. In this process, a bottom cover is carried to a storage-container body by using a moving device. The storage-container body and the bottom cover are positioned by adjusting the position of the bottom cover on the moving device while the bottom cover is supported by free bearings. The bottom cover is then attached to the storage-container body.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: December 9, 2014
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Hiroki Nasu, Yoshio Kitaoka, Akinori Takei
  • Patent number: 8884259
    Abstract: A system and method of transferring a radioactive payload using a shield-gate apparatus, including a method of performing work within a cavity of a shielding container using a shield-gate apparatus and shielding block, in one embodiment, the invention is a system comprising: a shield-gate apparatus comprising a body, a passageway extending along an axis through the body, and one or more movable shielding gates; a shielding block positioned atop the body of the shield-gate apparatus to enclose a first opening of the passageway; and a retaining feature that prevents relative transverse movement between the shielding block and the shield-gate apparatus while allowing relative rotation between the shielding block and the shield-gate apparatus about a central axis of the shielding block.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: November 11, 2014
    Inventor: Stephen J. Agace
  • Patent number: 8822964
    Abstract: A radioactive substance storage container 100 includes a body 10 and a lid 10 having a sealed structure, and a basket 5 housed in the body 1 to hold fuel assemblies. The basket 5 includes a neutron shielding material. The radioactive substance storage container 100 includes a subcritical-performance reinforcing member 20 including a neutron shielding material and located between an inner periphery of the body 1 and an outer periphery of the basket 5.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: September 2, 2014
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventor: Kiichiro Sakashita
  • Patent number: 8804895
    Abstract: The invention concerns a cask for a canister containing radioactive material, comprising a canister extraction assembly and designed so that it can bring the canister to an extraction position inside the cask housing in which this canister is free of any contact with the inner surface. Also, one of two elements from among a carriage and a support structure of the assembly is provided with a guide ramp cooperating with a ramp follower provided on the other of the two elements, the ramp being designed so that a relative translational movement between the carriage and the structure, in the longitudinal direction of the cask, causes the changeover of the two elements from a drawn-together position to a drawn-apart position, or conversely.
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: August 12, 2014
    Assignee: TN International
    Inventors: Jean-Pierre Bersegol, Justo Garcia
  • Patent number: 8801977
    Abstract: A composition of matter that experiences an increase rate of radioactive emission is presented. The composition comprises a radioactive material and particles having affinity for Hydrogen or its isotopes. When exposed to Hydrogen, the composition's emission rate increases. Methods of production are also presented.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: August 12, 2014
    Assignee: Brown-Cravens-Taylor
    Inventor: Dennis Cravens
  • Patent number: 8785896
    Abstract: Disclosed is a radioactive contaminant container including a wall that defines a containing space for containing radioactive contaminants and shields at least a portion of radiation irradiated from the radioactive contaminants, and the wall has an outer shape of a hexagonal cylinder or a substantially hexagonal cylinder.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: July 22, 2014
    Assignee: Kawahara Technical Reserch Co., Ltd.
    Inventor: Satoshi Kawahara
  • Patent number: 8754387
    Abstract: A radioactive material handling assembly (10) includes an outer housing (12) and an inner cell (14). The inner cell defines a radioactive material containment/handling chamber (16) and is removably mountable inside the outer housing. Handling means is operable from outside the inner cell to handle radioactive materials located in the containment/handling chamber. At least one of the outer housing and the inner cell is predominantly of a shielding material which is opaque to radioactivity.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: June 17, 2014
    Assignee: The South African Nuclear Energy Corporation Limited
    Inventor: Johannes Samuel Frederik Botha
  • Patent number: 8718221
    Abstract: An apparatus and method for inter-unit transfer of spent nuclear fuel. In one aspect, the invention is a method of transferring high level radioactive waste comprising: a) loading high level radioactive waste into a water-filled cavity of a canister body having an open top end at a first location; b) coupling a lid to the canister body to enclose the open top end; c) removing a volume of water from the cavity so that a water level of the water within the cavity is above a top end of the high level radioactive waste and a space exists between the water level and a bottom surface of the lid; d) hermetically sealing the cavity; and e) transferring the canister to a second location, the water level remaining above the top end of the high level radioactive waste during the transfer.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: May 6, 2014
    Inventors: Krishna P. Singh, John D. Griffiths
  • Patent number: 8718220
    Abstract: A system and method for storing multiple canisters containing high level waste below grade that afford adequate ventilation of the spent fuel storage cavity. In one aspect, the invention is a ventilated system for storing high level waste emitting heat, the system comprising: an air-intake shell forming an air-intake cavity; a plurality of storage shells, each storage shell forming a storage cavity; a lid positioned atop each of the storage shells; an outlet vent forming a passageway between an ambient environment and a top portion of each of the storage cavities; and a network of pipes forming hermetically sealed passageways between a bottom portion of the air-intake cavity and at least two different openings at a bottom portion of each of the storage cavities such that blockage of a first one of the openings does not prohibit air from flowing from the air-intake cavity into the storage cavity via a second one of the openings.
    Type: Grant
    Filed: February 19, 2010
    Date of Patent: May 6, 2014
    Inventor: Krishna P. Singh
  • Patent number: 8712001
    Abstract: A fuel basket spacer, and system and method for storing high level radioactive waste. In one aspect, the invention is an apparatus for transporting and/or storing radioactive materials comprising: a body having a cavity for receiving radioactive materials; a basket positioned in the cavity comprising a plurality of cells; and a structure having an outer surface and an inner surface forming a central passageway; the structure positioned in the cavity so that the basket extends through the central passageway of the structure; and wherein the internal perimeter of the structure corresponds to the external perimeter of the basket in size and shape and the external perimeter of the structure corresponds to the perimeter of the cavity in size and shape. Circumferential clearances are provided between structure and the basket and the structure and the body that are eliminated when exposed to a residual heat load of the radioactive waste.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: April 29, 2014
    Inventors: Krishna Singh, Stephen Agace
  • Patent number: 8705683
    Abstract: A plurality of first plate members 10 is stacked with long side ends 10LT1 and 10LT2 thereof abutting to each other. Plate member joint bodies 100 are formed by attaching connecting members 30 to side surfaces 10S of the stacked first plate members 10, and connecting the first plate members 10. Further, the plate member joint bodies 100 are so disposed to face each other, and the connecting members 30 projecting from the side surfaces 10S of the first plate members 10 are inserted into recesses formed at both long side ends of second plate members 20. A recycled fuel assembly storage basket 1 is thus formed. Recycled fuel assemblies are stored in spaces surrounded by the first plate members 10 and the second plate members 20.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: April 22, 2014
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventor: Hiroki Tamaki
  • Patent number: 8696540
    Abstract: According to one general aspect there is a needle package apparatus that comprises a top portion and a bottom portion; a plurality of needle slots exact distance apart that allows to place a plurality of needles that contain radioactive seeds; a cylindrical coil that is inserted to the plurality of needle slots to hold said plurality of needles, wherein said cylindrical coil prevents the leakage of the radiation from the radioactive seeds; a set of hinges located at the end of said needle package within the outer most said plurality of needle slots; wherein the hinges can be bend to change the angle of said top portion of said needle package by a medical personnel to create a stand; and a single end enclosure located at the distal end of said cylindrical coil to provide an enclosed cylinder.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: April 15, 2014
    Assignee: Best Medical International, Inc.
    Inventors: Rohit Mehta, Rashmi Amin
  • Publication number: 20140077105
    Abstract: Disclosed is a radioactive contaminant container including a wall that defines a containing space for containing radioactive contaminants and shields at least a portion of radiation irradiated from the radioactive contaminants, and the wall has an outer shape of a hexagonal cylinder or a substantially hexagonal cylinder.
    Type: Application
    Filed: September 20, 2013
    Publication date: March 20, 2014
    Applicant: KAWAHARA TECHNICAL RESEARCH CO., LTD.
    Inventor: Satoshi KAWAHARA
  • Publication number: 20140070118
    Abstract: A system and method of transferring a radioactive payload using a shield-gate apparatus, including a method of performing work within a cavity of a shielding container using a shield-gate apparatus and shielding block, in one embodiment, the invention is a system comprising: a shield-gate apparatus comprising a body, a passageway extending along an axis through the body, and one or more movable shielding gates; a shielding block positioned atop the body of the shield-gate apparatus to enclose a first opening of the passageway; and a retaining feature that prevents relative transverse movement between the shielding block and the shield-gate apparatus while allowing relative rotation between the shielding block and the shield gate apparatus about a central axis of the shielding block.
    Type: Application
    Filed: May 21, 2012
    Publication date: March 13, 2014
    Inventor: Stephen J. Agace
  • Patent number: 8660230
    Abstract: A system for receiving and storing high level radioactive waste comprising: an enclosure comprising walls having inlet ventilation ducts, a roof comprising an array of holes, and a floor; an array of metal shells located in an internal space of the enclosure, the array of metal shells being co-axial with the array of holes in the roof so that containers holding high level radioactive waste can be lowered through the array of holes in the roof and into the array of metal shells; the array of metal shells acting as load bearing columns for the roof; and each of the metal shells comprising (i) an expansion joint for accommodating thermal expansion and/or contraction of the metal shells; and (ii) one or more holes at a bottom portion of the metal shell.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: February 25, 2014
    Inventors: Krishna P. Singh, Stephen J. Agace
  • Publication number: 20140039235
    Abstract: In one embodiment, a system and method for dry storage comprises removing spent fuel rods from their fuel rod assemblies and placing the freed fuel rods in a storage cell of a dry storage canister with a high packing density and without a neutron absorber material present.
    Type: Application
    Filed: August 2, 2013
    Publication date: February 6, 2014
    Inventor: Juan C. Subiry
  • Patent number: 8637842
    Abstract: A method of using automatic whole body personnel contamination monitors and/or means for decontaminating individuals exposed to radioactive material contamination is provided. The inventive method involves the use of these monitors and/or decontamination means in intermodal containers of mobile-unit structures dedicated to responding to radiological emergency situations. Also provided are such mobile-unit structures, as well as systems that employ such mobile-unit structures.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: January 28, 2014
    Assignee: UniTech Services Group, Inc.
    Inventors: Leslie B. Case, III, Michael R. Fuller, Gregg A. Johnstone, Thomas Pearce O'Kelley, Glenn E. Roberts
  • Patent number: 8634514
    Abstract: The invention concerns a vessel for processing, transfer, accumulation and/or transfer of material containing civilian or military origin plutonium, in the form of plutonium oxide, carbide and/or nitride. The plutonium is preferably present in a concentration not higher than a guaranteed maximum between 20 and 50% wt. in said material, possibly with other actinides such as americium, neptunium, or curium. Said material is preferably in form of powder, granulate and/or tablets. The vessel comprises a volume of 20 to 70 liters for containing said material, demarcated at least by two substantially parallel walls, these two walls being separated by a distance e between 8 and 15 cm.
    Type: Grant
    Filed: June 14, 2007
    Date of Patent: January 21, 2014
    Assignee: Belgonucleaire SA
    Inventor: Alain Vandergheynst
  • Patent number: 8633461
    Abstract: In one characterization, the present invention relates to a radiation-shielding assembly for holding a container having a radioactive material disposed therein. The assembly may, at least in one regard, be referred to as an elution shield and/or a dispensing shield. The assembly includes a body at least partially defining a cavity. There is at least one opening through the body into the cavity. The assembly may include a cap that at least generally hinders escape of radiation from the assembly through the opening. The cap may be releasably attached to the body in one orientation and may establish non-attached engagement with the body in another orientation. The assembly may include an adjustable spacer system for adapting the assembly for use with containers having different heights.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: January 21, 2014
    Assignee: Mallinckrodt LLC
    Inventors: Frank M. Fago, David W. Wilson, Gary S. Wagner, Ralph E. Pollard, Jr.
  • Patent number: 8630384
    Abstract: Disclosed are apparatus and methods for storing or transporting spent nuclear fuel. In one embodiment, a container for storing spent nuclear fuel comprises a plurality of elongated tubes that receives spent nuclear fuel rods. Each tube has four sidewalls and four corners defining a rectangular cross section. The plurality of tubes is arranged in an alternating pattern. An attachment means attaches together the plurality of tubes at the corners so that two adjacent sidewalls of adjacent tubes are substantially aligned.
    Type: Grant
    Filed: March 8, 2004
    Date of Patent: January 14, 2014
    Assignee: NAC International, Inc.
    Inventors: George Carver, Andy Langston, Michael Yaksh, Gerald Jones
  • Publication number: 20140001381
    Abstract: An overpack for receiving a steel cylinder, such as a stainless steel cylinder, containing uranium hexafluoride includes a semi-cylindrical top portion having an arcuate main body and opposing first and second semi-circular end members, and includes a semi-cylindrical bottom portion having an arcuate main body and opposing first and second semi-circular end members, with the first end members of the top and bottom portion being aligned, and the second end members of the top and bottom portion being aligned, and the overpack is disposed in a cradle.
    Type: Application
    Filed: March 6, 2013
    Publication date: January 2, 2014
    Applicant: COLUMBIANA HI TECH LLC
    Inventor: Thomas F. DOUGHERTY
  • Patent number: 8548112
    Abstract: A fuel basket apparatus, system and method for storing high level radioactive waste. In one aspect, the invention is an apparatus suitable for transporting and/or storing spent nuclear fuel rods comprising: a basket formed from a honeycomb-like gridwork of plates arranged in a rectilinear configuration, the gridwork of plates forming a plurality of cells for receiving spent nuclear fuel rods; the basket comprising one or more flux traps that regulate production of neutron radiation; and wherein the plates are constructed of a metal matrix composite material.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: October 1, 2013
    Inventors: Krishna Singh, Stephen Agace
  • Patent number: 8541763
    Abstract: A shield for absorbing radiation emitted by a target during operation of a cyclotron. The shield includes an inner box structure having a recess for receiving the target. In addition, the shield includes a first plurality of shield elements arranged in a layered configuration about the inner box structure. The shield also includes an outer box structure for receiving the inner box structure and the first plurality of shield elements. Further, a second plurality of shield elements is arranged in a layered configuration about the outer box structure. The shield elements are arranged in both horizontal and vertical orientations and are removable.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: September 24, 2013
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventor: Michael P. Roy
  • Patent number: 8421044
    Abstract: Disclosed herein are embodiments of a radiation shielding lid of a radiation shielding container (e.g., auxiliary radiation shield) designed to house a radioisotope generator assembly.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: April 16, 2013
    Assignee: Mallinckrodt LLC
    Inventors: Scott Hayward Mayfield, Kevin Robert Martz
  • Publication number: 20130077728
    Abstract: An integrated storage, transportation and disposal system for used fuel assemblies is provided. The system includes a plurality of sealed canisters and a cask sized to receive the sealed canisters in side by side relationship. The plurality of sealed canisters include an internal basket structure to receive a plurality of used fuel assemblies. The internal basket structure includes a plurality of radiation-absorbing panels and a plurality of hemispherical ribs generally perpendicular to the canister sidewall. The sealed canisters are received within the cask for storage and transportation and are removed from the cask for disposal at a designated repository. The system of the present invention allows the handling of sealed canisters separately or collectively, while allowing storage and transportation of high burnup fuel and damaged fuel to the designated repository.
    Type: Application
    Filed: July 20, 2012
    Publication date: March 28, 2013
    Applicant: UT-BATTELLE, LLC
    Inventors: John M. Scaglione, John C. Wagner
  • Patent number: 8385497
    Abstract: A method to confine a nuclear reactor fuel bundle assembly including: inserting a lower portion of the fuel bundle assembly into an open end of a lower fuel particle barrier; supporting the lower portion of the fuel bundle with the lower fuel particle barrier; grasping the lower portion of the fuel bundle assembly with the lower fuel particle barrier; lowering an upper fuel particle barrier over an upper tie plate of the fuel bundle assembly; moving at least a portion of a handle fixed to the upper tie plate through an open slot in the upper fuel particle barrier; closing the open slot with a closure device after the handle passes through the slot, and preventing fuel particles being released from the nuclear reactor fuel bundle assembly by the upper and lower fuel particle barriers.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: February 26, 2013
    Assignee: Global Nuclear Fuel Americas, LLC
    Inventors: Paul Everett Cantonwine, Andrew K. Langston, Charles B. Patterson, Jr., Johnny R. Skipper, Alexander Michael Hay, Carlton Wayne Clark, David Grey Smith
  • Patent number: 8362452
    Abstract: In one characterization, the present invention relates to a radiation-shielding assembly for holding a container having a radioactive material disposed therein. The assembly may, at least in one regard, be referred to as an elution shield and/or a dispensing shield. The assembly includes a body at least partially defining a cavity. There is at least one opening through the body into the cavity. The assembly may include a cap that at least generally hinders escape of radiation from the assembly through the opening. The cap may be releasably attached to the body in one orientation and may establish non-attached engagement with the body in another orientation. The assembly may include an adjustable spacer system for adapting the assembly for use with containers having different heights.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: January 29, 2013
    Assignee: Mallinckrodt Inc.
    Inventors: Frank M. Fago, David W. Wilson, Gary S. Wagner, Ralph E. Pollard, Jr.
  • Patent number: 8350242
    Abstract: A shield for absorbing radiation emitted during generation of a radioisotope. The shield includes an inner portion fabricated from a first type of shielding material. The shield also includes an outer portion fabricated from a second type of shielding material wherein the outer portion serves as a mold for forming the inner portion. The inner portion may be fabricated from a material which shields against gamma rays such as concrete. The outer portion may be fabricated from a material which moderates neutrons such as high density polyethylene. Additional shielding materials may be embedded into the inner portion as desired.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: January 8, 2013
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Todd L. Graves, Craig M. Stuesse, Michael P. Roy
  • Patent number: 8351562
    Abstract: A method for storing high level radioactive waste in a passively cooled cavity. In one embodiment, the invention comprises: (a) providing a container comprising an outer shell having an open top end and a hermetically closed bottom end, an inner shell forming a cavity, the inner shell positioned within the outer shell so as to form a space between the inner shell and the outer shell, and at least one opening in the inner shell that forms a passageway between the space and a bottom portion of the cavity; (b) lowering a hermetically sealed canister holding high level radioactive waste into the cavity via the open top end; and (c) positioning a lid having at least one inlet vent and at least one outlet vent atop the container such that the at least one inlet vent forms a passageway from an ambient atmosphere to the space and the at least one outlet vent forms a passageway from the cavity to the ambient atmosphere, the lid substantially enclosing the open top end.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: January 8, 2013
    Inventor: Krishna P Singh
  • Patent number: 8338802
    Abstract: A terahertz (THz) anti-reflection device, for example, a broadband tunable THz anti-reflection device, includes a silicon substrate having a plurality of recesses, each of the plurality of recesses having a plurality of cavities of decreasing dimension. The cavities may be nested polygonal cavities, for example, having a square or rectangular cross section. The recesses having the cavities may be positioned at regular periods, for example, periods ranging from 10 ?m to 20 ?m. The devices may be fabricated by conventional lithographic methods. Also disclosed are methods for modifying terahertz radiation and methods for fabricating anti-reflection devices.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: December 25, 2012
    Assignee: Rensselaer Polytechnic Institute
    Inventors: Xi-Cheng Zhang, Pengyu Han, Yuting W. Chen
  • Patent number: 8303865
    Abstract: A composition of matter that experiences an increase rate of radioactive emission is presented. The composition comprises a radioactive material and particles having affinity for Hydrogen or its isotopes. When exposed to Hydrogen, the composition's emission rate increases. Methods of production are also presented.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: November 6, 2012
    Assignee: Brown-Cravens-Taylor
    Inventor: Dennis Cravens