Patents by Inventor Ehud Greenspan
Ehud Greenspan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10008294Abstract: Illustrative embodiments provide methods and systems for migrating fuel assemblies in a nuclear fission reactor, methods of operating a nuclear fission traveling wave reactor, methods of controlling a nuclear fission traveling wave reactor, systems for controlling a nuclear fission traveling wave reactor, computer software program products for controlling a nuclear fission traveling wave reactor, and nuclear fission traveling wave reactors with systems for migrating fuel assemblies.Type: GrantFiled: November 6, 2009Date of Patent: June 26, 2018Assignee: TerraPower, LLCInventors: Roderick A. Hyde, Robert C Petroski, Joshua C. Walter, Thomas Allan Weaver, Charles Whitmer, Lowell L. Wood, Jr., George B. Zimmerman, Ehud Greenspan
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Patent number: 9922733Abstract: Illustrative embodiments provide methods and systems for migrating fuel assemblies in a nuclear fission reactor, methods of operating a nuclear fission traveling wave reactor, methods of controlling a nuclear fission traveling wave reactor, systems for controlling a nuclear fission traveling wave reactor, computer software program products for controlling a nuclear fission traveling wave reactor, and nuclear fission traveling wave reactors with systems for migrating fuel assemblies.Type: GrantFiled: January 25, 2010Date of Patent: March 20, 2018Assignee: TerraPower, LLCInventors: Ehud Greenspan, Roderick A. Hyde, Robert C. Petroski, Joshua C. Walter, Thomas Allan Weaver, Charles Whitmer, Lowell L. Wood, Jr., George B. Zimmerman
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Patent number: 9852818Abstract: Illustrative embodiments provide a reactivity control assembly for a nuclear fission reactor, a reactivity control system for a nuclear fission reactor having a fast neutron spectrum, a nuclear fission traveling wave reactor having a fast neutron spectrum, a method of controlling reactivity in a nuclear fission reactor having a fast neutron spectrum, methods of operating a nuclear fission traveling wave reactor having a fast neutron spectrum, a system for controlling reactivity in a nuclear fission reactor having a fast neutron spectrum, a method of determining an application of a controllably movable rod, a system for determining an application of a controllably movable rod, and a computer program product for determining an application of a controllably movable rod.Type: GrantFiled: January 25, 2010Date of Patent: December 26, 2017Assignee: TerraPower, LLCInventors: Charles E. Ahlfeld, Ehud Greenspan, Roderick A. Hyde, Nathan P. Myhrvold, Joshua C. Walter, Kevan D. Weaver, Thomas Allan Weaver, Lowell L. Wood, Jr., George B. Zimmerman
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Patent number: 9799416Abstract: Illustrative embodiments provide methods and systems for migrating fuel assemblies in a nuclear fission reactor, methods of operating a nuclear fission traveling wave reactor, methods of controlling a nuclear fission traveling wave reactor, systems for controlling a nuclear fission traveling wave reactor, computer software program products for controlling a nuclear fission traveling wave reactor, and nuclear fission traveling wave reactors with systems for migrating fuel assemblies.Type: GrantFiled: January 25, 2010Date of Patent: October 24, 2017Assignee: TerraPower, LLCInventors: Ehud Greenspan, Roderick A. Hyde, Robert C. Petroski, Joshua C. Walter, Thomas Allan Weaver, Charles Whitmer, Lowell L. Wood, Jr., George B. Zimmerman
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Patent number: 9793013Abstract: Illustrative embodiments provide a reactivity control assembly for a nuclear fission reactor, a reactivity control system for a nuclear fission reactor having a fast neutron spectrum, a nuclear fission traveling wave reactor having a fast neutron spectrum, a method of controlling reactivity in a nuclear fission reactor having a fast neutron spectrum, methods of operating a nuclear fission traveling wave reactor having a fast neutron spectrum, a system for controlling reactivity in a nuclear fission reactor having a fast neutron spectrum, a method of determining an application of a controllably movable rod, a system for determining an application of a controllably movable rod, and a computer program product for determining an application of a controllably movable rod.Type: GrantFiled: January 25, 2010Date of Patent: October 17, 2017Assignee: TerraPower, LLCInventors: Charles E. Ahlfeld, Ehud Greenspan, Roderick A. Hyde, Nathan P. Myhrvold, Robert R. Richardson, Joshua C. Walter, Kevan D. Weaver, Thomas Allan Weaver, Lowell L. Wood, Jr., George B. Zimmerman
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Patent number: 9786392Abstract: Illustrative embodiments provide methods and systems for migrating fuel assemblies in a nuclear fission reactor, methods of operating a nuclear fission traveling wave reactor, methods of controlling a nuclear fission traveling wave reactor, systems for controlling a nuclear fission traveling wave reactor, computer software program products for controlling a nuclear fission traveling wave reactor, and nuclear fission traveling wave reactors with systems for migrating fuel assemblies.Type: GrantFiled: January 25, 2010Date of Patent: October 10, 2017Assignee: TerraPower, LLCInventors: Ehud Greenspan, Roderick A. Hyde, Robert C. Petroski, Joshua C. Walter, Thomas Allan Weaver, Charles Whitmer, Lowell L. Wood, Jr., George B. Zimmerman
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Patent number: 9190177Abstract: Illustrative embodiments provide a reactivity control assembly for a nuclear fission reactor, a reactivity control system for a nuclear fission reactor having a fast neutron spectrum, a nuclear fission traveling wave reactor having a fast neutron spectrum, a method of controlling reactivity in a nuclear fission reactor having a fast neutron spectrum, methods of operating a nuclear fission traveling wave reactor having a fast neutron spectrum, a system for controlling reactivity in a nuclear fission reactor having a fast neutron spectrum, a method of determining an application of a controllably movable rod, a system for determining an application of a controllably movable rod, and a computer program product for determining an application of a controllably movable rod.Type: GrantFiled: November 6, 2009Date of Patent: November 17, 2015Assignee: TerraPower, LLCInventors: Charles E. Ahlfeld, Ehud Greenspan, Roderick A. Hyde, Nathan P. Myhrvold, Joshua C. Walter, Kevan D. Weaver, Thomas Allan Weaver, Lowell L. Wood, Jr., George B. Zimmerman
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Publication number: 20110110483Abstract: Illustrative embodiments provide methods and systems for migrating fuel assemblies in a nuclear fission reactor, methods of operating a nuclear fission traveling wave reactor, methods of controlling a nuclear fission traveling wave reactor, systems for controlling a nuclear fission traveling wave reactor, computer software program products for controlling a nuclear fission traveling wave reactor, and nuclear fission traveling wave reactors with systems for migrating fuel assemblies.Type: ApplicationFiled: January 25, 2010Publication date: May 12, 2011Inventors: Ehud Greenspan, Roderick A. Hyde, Robert C. Petroski, Joshua C. Walter, Thomas Allan Weaver, Charles Whitmer, Lowell L. Wood, JR., George B. Zimmerman
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Publication number: 20110110479Abstract: Illustrative embodiments provide a reactivity control assembly for a nuclear fission reactor, a reactivity control system for a nuclear fission reactor having a fast neutron spectrum, a nuclear fission traveling wave reactor having a fast neutron spectrum, a method of controlling reactivity in a nuclear fission reactor having a fast neutron spectrum, methods of operating a nuclear fission traveling wave reactor having a fast neutron spectrum, a system for controlling reactivity in a nuclear fission reactor having a fast neutron spectrum, a method of determining an application of a controllably movable rod, a system for determining an application of a controllably movable rod, and a computer program product for determining an application of a controllably movable rod.Type: ApplicationFiled: January 25, 2010Publication date: May 12, 2011Inventors: Charles E. Ahlfeld, Ehud Greenspan, Roderick A. Hyde, Nathan P. Myhrvold, Robert R. Richardson, Joshua C. Walter, Kevan D. Weaver, Thomas Allan Weaver, Lowell L. Wood, JR., George B. Zimmerman
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Publication number: 20110110477Abstract: Illustrative embodiments provide a reactivity control assembly for a nuclear fission reactor, a reactivity control system for a nuclear fission reactor having a fast neutron spectrum, a nuclear fission traveling wave reactor having a fast neutron spectrum, a method of controlling reactivity in a nuclear fission reactor having a fast neutron spectrum, methods of operating a nuclear fission traveling wave reactor having a fast neutron spectrum, a system for controlling reactivity in a nuclear fission reactor having a fast neutron spectrum, a method of determining an application of a controllably movable rod, a system for determining an application of a controllably movable rod, and a computer program product for determining an application of a controllably movable rod.Type: ApplicationFiled: November 6, 2009Publication date: May 12, 2011Inventors: Charles E. Ahlfeld, Ehud Greenspan, Roderick A. Hyde, Nathan P. Myhrvold, Joshua C. Walter, Kevan D. Weaver, Thomas Allan Weaver, Lowell L. Wood, JR., George B. Zimmerman
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Publication number: 20110110478Abstract: Illustrative embodiments provide a reactivity control assembly for a nuclear fission reactor, a reactivity control system for a nuclear fission reactor having a fast neutron spectrum, a nuclear fission traveling wave reactor having a fast neutron spectrum, a method of controlling reactivity in a nuclear fission reactor having a fast neutron spectrum, methods of operating a nuclear fission traveling wave reactor having a fast neutron spectrum, a system for controlling reactivity in a nuclear fission reactor having a fast neutron spectrum, a method of determining an application of a controllably movable rod, a system for determining an application of a controllably movable rod, and a computer program product for determining an application of a controllably movable rod.Type: ApplicationFiled: January 25, 2010Publication date: May 12, 2011Inventors: Charles E. Ahlfeld, Ehud Greenspan, Roderick A. Hyde, Nathan P. Myhrvold, Joshua C. Walter, Kevan D. Weaver, Thomas Allan Weaver, Lowell L. Wood, JR., George B. Zimmerman
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Publication number: 20110110481Abstract: Illustrative embodiments provide methods and systems for migrating fuel assemblies in a nuclear fission reactor, methods of operating a nuclear fission traveling wave reactor, methods of controlling a nuclear fission traveling wave reactor, systems for controlling a nuclear fission traveling wave reactor, computer software program products for controlling a nuclear fission traveling wave reactor, and nuclear fission traveling wave reactors with systems for migrating fuel assemblies.Type: ApplicationFiled: January 25, 2010Publication date: May 12, 2011Inventors: Ehud Greenspan, Roderick A. Hyde, Robert C. Petroski, Joshua C. Walter, Thomas Allan Weaver, Charles Whitmer, Lowell L. Wood, JR., George B. Zimmerman
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Publication number: 20110110482Abstract: Illustrative embodiments provide methods and systems for migrating fuel assemblies in a nuclear fission reactor, methods of operating a nuclear fission traveling wave reactor, methods of controlling a nuclear fission traveling wave reactor, systems for controlling a nuclear fission traveling wave reactor, computer software program products for controlling a nuclear fission traveling wave reactor, and nuclear fission traveling wave reactors with systems for migrating fuel assemblies.Type: ApplicationFiled: January 25, 2010Publication date: May 12, 2011Inventors: Ehud Greenspan, Roderick A. Hyde, Robert C. Petroski, Joshua C. Walter, Thomas Allan Weaver, Charles Whitmer, Lowell L. Wood, JR., George B. Zimmerman
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Publication number: 20080112881Abstract: A system for hydrogen loading is provided. The system includes a substrate, such as that made from palladium, a matrix of nanotubes, for example, SWCNT, disposed on the substrate, and a coating, capable of dissociating hydrogen into its atomic form, covering the matrix of nanotubes. The presence of such a coating on the matrix of SWCNT can lead to a flux of hydrogen across the coating and facilitate loading of hydrogen into the nanotubes, when exposed to hydrogen at an appropriate effective pressure. The system may be also used to generate a thermal response.Type: ApplicationFiled: November 14, 2006Publication date: May 15, 2008Inventors: Andrei Lipson, Boris F. Lyakhov, Tatyana Zilov, Ehud Greenspan
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Publication number: 20070280398Abstract: A low energy nuclear reaction power generator in which hydrogenous atoms are driven to increase atom-packing in a lattice and to increase the flux of hydrogenous atoms. An electrolytic cell is provided containing an anode-cathode electrode pair and an electrically-conductive electrolyte. Modifying substances, such as diamond, diamond-like, boron, beryllium, and/or carbon-based constituents, may be grown in and/or on the electrodes for enhancing the nuclear reactions. Applied across these electrodes may be a train of electrical packets, each comprised of a cluster of pulses. The amplitude and duration of each pulse, the duration of intervals between pulses, and the duration of intervals between successive packets in the train are in a predetermined pattern in accordance with superwaving waves in which each wave is modulated by waves of different frequency.Type: ApplicationFiled: December 5, 2006Publication date: December 6, 2007Inventors: Irving Dardik, Raymond Thompson, Shaul Lesin, Ehud Greenspan, Michael McKubre
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Patent number: 5416333Abstract: This invention relates to compositions, methods of production and uses of materials for shielding against nuclear radiation. These materials are made of a low density solid hydrogenous material which binds a powder of medium density materials. They are particularly effective for shielding against fission and high energy neutrons, as well as against a combined radiation of neutrons and photons.Type: GrantFiled: June 3, 1993Date of Patent: May 16, 1995Inventor: Ehud Greenspan
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Patent number: 5349618Abstract: A boiling water nuclear reactor used for the production of electricity includes fuel rods and an assembly of these fuel rods that improve the reactor economics and safety. The fuel assemblies include hydride fuel pellets at selected axial and radial positions in addition to oxide fuel pellets. The hydride fuel functions simultaneously as a fuel and as a moderator. The hydride fuel can be made from different combinations of fissionable materials such as uranium, and hydrides such as zirconium hydride. The hydride fuel (such as U-ZrH.sub.1.6) is substituted for oxide fuel (UO.sub.2) in undermoderated regions of the core. Hydride fuel rods also replace water rods in the fuel assemblies.Type: GrantFiled: September 9, 1992Date of Patent: September 20, 1994Inventor: Ehud Greenspan