Superconductive Type Patents (Class 335/216)
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Patent number: 10233913Abstract: A liquid supply system includes first and second bellows 41 and 42 arranged in series in an expanding/contracting direction thereof in a vessel 12 and having first end portions respectively, which are close to each other and fixed to an inner wall of the vessel 12, and also having second end portions respectively, which are distant from each other and movable in the expanding/contracting direction. An inner space of the vessel 12 located outside the first bellows 41 serves as a first pump chamber P1. An inner space of the vessel 12 located outside the second bellows 42 serves as a second pump chamber P2. An inner space of the vessel 12 located inside the first and second bellows 41 and 42 serves as a sealed space R1. A shaft 15 to which the respective second end portions of the first and second bellows 41 and 42 are fixed is reciprocally moved to expand/contract the first and second bellows 41 and 42.Type: GrantFiled: July 9, 2015Date of Patent: March 19, 2019Assignee: EAGLE INDUSTRY CO., LTD.Inventors: Koichi Mori, Yoshio Osawa, Kiyotaka Furuta
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Patent number: 10186858Abstract: A device (10) for a current limiter is described, the device (10) comprising: at least one coil assembly (12) adapted to carry a current, the coil assembly (12) comprising: a first coil (14), comprising a first superconducting element, adapted to carry a first portion of said current, and a second coil (16), comprising a second superconducting element, adapted to carry a second portion of said current, wherein said first and second coils (14, 16) are arranged such that, when said first and second superconducting elements are each in a superconducting state and said coil assembly (12) carries said current, a magnetic field generated by said first portion of said current in said first coil (14) is substantially cancelled by a magnetic field generated by said second portion of said current in said second coil (16); and wherein said device is adapted such that, in use, the first superconducting element carries a higher proportion of said current than the second superconducting element.Type: GrantFiled: August 15, 2014Date of Patent: January 22, 2019Assignee: ROLLS-ROYCE PLCInventors: David William Klaus, Adrian Wilson
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Patent number: 10126385Abstract: A magnetic resonance imaging (MRI) apparatus includes a coil assembly including a superconductive magnet; and a helium container configured to accommodate a helium in a liquid state and the coil assembly. The helium container includes a partition wall configured to surround a portion of an outer circumference of the coil assembly, and the helium in the liquid state is accommodated in a first space formed between the partition wall and the coil assembly.Type: GrantFiled: August 17, 2015Date of Patent: November 13, 2018Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventor: Oh Soo Kwon
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Patent number: 10101061Abstract: According to an embodiment, a cryogenic regenerator material contains a silver oxide. A molar ratio of silver atoms to oxygen atoms contained in the cryogenic regenerator material: Ag/O is 1.0 or more and 4.0 or less. The cryogenic regenerator material contains at least one selected from AgO, Ag2O and Ag3O as the silver oxide.Type: GrantFiled: February 27, 2017Date of Patent: October 16, 2018Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Tomoko Eguchi, Akiko Saito
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Patent number: 10096403Abstract: A superconductive wire conductor is produced by: embedding a plurality of deposition substrates formed to have a predetermined size in parallel with each other to a connection base material to connect and integrate therewith; depositing an intermediate layer, a superconductive layer and a protective layer on a deposition surface side of the deposition substrate; and winding a single or multiple integrated superconductive conductors around a desired core material, separating each single superconductive wire from the integrated superconductive conductor and winding each superconductive wire around the core material or winding the integrated or separated wire alternately, whereby a superconductive conductor having a good superconductive characteristic without a problem regarding a shape thereof such as local protrusions.Type: GrantFiled: February 5, 2014Date of Patent: October 9, 2018Assignee: FURUKAWA ELECTRIC CO., LTD.Inventor: Yoshinori Nagasu
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Patent number: 10082549Abstract: A cooling system includes a first cooling loop containing a first cryogen, the first cooling loop being in thermal communication with a superconducting magnet and being configured to provide primary cooling for the magnet and a second cooling loop also containing the first cryogen. The second cooling loop is in thermal communication with an enclosure containing a second cryogen and is configured to cool the second cryogen within the enclosure. The enclosure is in thermal communication with the superconducting magnet and is configured to provide secondary cooling for the magnet.Type: GrantFiled: January 4, 2017Date of Patent: September 25, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Yuri Lvovsky, Mark Derakhshan
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Patent number: 10084366Abstract: An apparatus and method for charging a superconductor, such as a high temperature superconductor (HTS), in-situ, including a superconductor that is magnetized by a magnet. A surface area of the magnet is smaller than a surface area of the superconductor and the magnet scans the surface area of the superconductor to magnetize the superconductor one portion at a time. An additional compression superconductor may be used to compress the magnetic flux from the magnet such that the magnetic flux exits the compression superconductor via an aperture on the surface of the compression superconductor and then impinges the surface of the superconductor being charged. The superconductor is assembled in a machine prior to being magnetized and may be cooled prior to magnetization.Type: GrantFiled: February 25, 2015Date of Patent: September 25, 2018Assignee: THE BOEING COMPANYInventor: John R. Hull
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Patent number: 10068687Abstract: A superconductive wire conductor is produced by: embedding a plurality of deposition substrates formed to have a predetermined size in parallel with each other to a connection base material to connect and integrate therewith; depositing an intermediate layer, a superconductive layer and a protective layer on a deposition surface side of the deposition substrate; and winding a single or multiple integrated superconductive conductors around a desired core material, separating each single superconductive wire from the integrated superconductive conductor and winding each superconductive wire around the core material or winding the integrated or separated wire alternately, whereby a superconductive conductor having a good superconductive characteristic without a problem regarding a shape thereof such as local protrusions.Type: GrantFiled: February 5, 2014Date of Patent: September 4, 2018Assignee: FURUKAWA ELECTRIC CO., LTD.Inventor: Yoshinori Nagasu
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Superconducting current lead, superconducting current lead device, and superconducting magnet device
Patent number: 10062488Abstract: A superconducting current lead supplying current to a superconducting device includes a plurality of electrode members, a support rod that is arranged between the plurality of electrode members so as to connect the plurality of electrode members each other, and a plurality of thin multi-layer rare-earth-based superconducting wires, each of which has a tape shape and includes a main surface and both end portions being connected to each of the plurality of electrode members, and each of which is arranged on an outer surface of the support rod, wherein an angle ? is 40-60 degrees that is formed by each of the main surfaces adjacent to each other in a circumferential direction of the support rod on the outer surface of the support rod.Type: GrantFiled: August 21, 2014Date of Patent: August 28, 2018Assignee: FUJIKURA LTD.Inventor: Masanori Daibo -
Patent number: 10056178Abstract: The superconducting magnet device reduces the number of connections within and/or the number of wires leading out of a superconducting coil winding and promptly starts expending the magnetic energy in a superconducting coil operating in a persistent-current mode when the superconducting coil increases in temperature or transitions to normal conductivity. This invention provides a superconducting magnet device that has the following: a superconducting coil connected to an excitation power supply; a persistent-current switch connected to the superconducting coil; a heater that controls the temperature of the persistent-current switch; a current source that is connected in parallel with the persistent-current switch and has a different polarity from the excitation power supply; a driving circuit connected to the heater and the current source; and a signal-inputting means for inputting a signal to the driving circuit.Type: GrantFiled: January 27, 2014Date of Patent: August 21, 2018Assignee: Hitachi, Ltd.Inventors: Akihisa Miyazoe, Takeshi Nakayama, Manabu Aoki
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Patent number: 10042015Abstract: A dual-purpose displacer for adjusting a liquid cryogen level in a cryostat, the dual-purpose displacer includes a displacer wall having an exterior displacer surface and an interior displacer surface. The interior displacer surface defines a displacing chamber configured to contain a first portion of liquid cryogen. The exterior displacer surface is configured to displace a second portion of liquid cryogen contained in a cryogenic chamber of the cryostat. The dual-purpose displacer is disposed within the cryogenic chamber of the cryostat and configured to transfer the first portion of liquid cryogen contained within the displacing chamber to the cryogenic chamber.Type: GrantFiled: October 30, 2015Date of Patent: August 7, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Dogan Celik, Mark O. Derakhshan, Peter Jarvis, Yuri Lvovsky, Stuart Paul Feltham
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Patent number: 10032549Abstract: A superconducting coil device includes a superconducting flat conductor having one or more torsional turns. The flat conductor is wound around a winding support to define multiple turns of the conductor around the support. In at least one of the turns, the flat conductor is twisted through approximately 180 degrees about a longitudinal axis of the flat conductor, to thereby switch a contact side of the flat conductor from radially inwardly facing to radially outwardly facing, or vice versa. The contact side of the flat conductor at an inner turn faces a center of the winding and, and at an outer turn faces away from the center of the winding. The inwardly-facing contact side of the strip at an inner turn may be coupled to an inner contact element, and the outwardly-facing contact side at an outer turn may be conductively coupled to an outer contact element.Type: GrantFiled: May 20, 2014Date of Patent: July 24, 2018Assignee: SIEMENS AKTIENGESELLSCHAFTInventors: Otto Batz, Werner Herkert, Anne Kuhnert, Peter Kummeth
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Patent number: 9982840Abstract: A cooling device (20) has a cryostat (23) and a cold head (1), in particular, the cold head (1) of a pulse tube cooler. The cryostat (23) has a vacuum container (4) with a vacuum container wall (4a), wherein the vacuum container wall (4a) seals off a vacuum inside the vacuum container (4) from the environment. A flexible sealing section (6) connects the vacuum container wall (4a) directly or indirectly to the room temperature part (1a) of the cold head (1). The flexible sealing section (6) seals off the inside of the cryocontainer (2) from the environment. The cooling device further reduces mechanical coupling between the cold head and the cryostat, in particular, in order to enable performance of NMR measurements with fewer disturbances due to external vibrations.Type: GrantFiled: September 16, 2015Date of Patent: May 29, 2018Assignee: Bruker BioSpin GmbHInventors: Patrick Wikus, Steffen Bonn, Heinrich Harsch
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Patent number: 9927154Abstract: Cryogenic cooling apparatus is disclosed for cooling a target region using the demagnetization cooling effect. The apparatus has a primary magnet for providing a magnetic field within the target region and a demagnetization magnet arranged to selectively provide conductive cooling to the target region. A primary shielding magnet substantially cancels the magnetic field from the primary magnet at least at a first position between the primary and demagnetization magnets. A demagnetization shielding magnet substantially cancels the magnetic field from the demagnetization magnet at least at the first position between the primary and demagnetization magnets. Each of the primary shielding magnet and demagnetization shielding magnet comprises a cylindrical superconducting coil having a geometric envelope which encloses the primary magnet and demagnetization magnet respectively. A conductive cooling assembly provides conductive cooling to each of the magnets.Type: GrantFiled: November 26, 2014Date of Patent: March 27, 2018Assignee: OXFORD INSTRUMENTS NANOTECHNOLOGY TOOLS LIMITEDInventor: Chris King
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Patent number: 9887028Abstract: A superconducting magnet includes: a superconducting coil; a coolant container; a radiation shield; a vacuum container; a refrigerator; a current lead; a first pipe including a mounting opening in which the refrigerator is inserted and fixed; a second pipe including a lead-out opening through which the current lead passes to be led out; and a flow rate ratio maintaining mechanism connected to at least one of the downstream side of the mounting opening of the first pipe and the downstream side of the lead-out opening of the second pipe, the flow rate ratio maintaining mechanism allowing the vaporized coolant to flow through the first pipe and the second pipe at a constant flow rate ratio.Type: GrantFiled: September 3, 2014Date of Patent: February 6, 2018Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Tatsuya Inoue, Hajime Tanabe
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Patent number: 9851641Abstract: An illumination system for an EUV projection lithographic projection exposure apparatus comprises an EUV light source, which generates an output beam of EUV illumination light with a predetermined polarization state. An illumination optical unit guides the output beam along an optical axis, as a result of which an illumination field in a reticle plane is illuminated by the output beam. The light source comprises an electron beam supply device, an EUV generating device and a polarization setting device. The EUV generating device is supplied with an electron beam by the electron beam supply device. The polarization setting device exerts an adjustable deflecting effect on the electron beam for setting the polarization of the output beam. This results in an illumination system, which operates on the basis of an electron beam-based EUV light source and provides an output beam, which is improved for a resolution-optimized illumination.Type: GrantFiled: January 12, 2015Date of Patent: December 26, 2017Assignee: Carl Zeiss SMT GmbHInventor: Michael Patra
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Patent number: 9852831Abstract: This superconducting magnet includes: a superconducting coil that is formed by winding a first superconducting wire rod; a second superconducting wire rod, which is disposed by being thermally in contact with and electrically insulated from the superconducting coil, and which has a superconducting transition temperature that is lower than that of the first superconducting wire rod; voltage terminals that are disposed at a plurality of areas of the second superconducting wire rod; a voltmeter connected to the voltage terminals; and a switch circuit connected to the voltmeter. The switch circuit interrupts a current when receiving an output from the voltmeter, the current being one that is to be supplied to the superconducting coil.Type: GrantFiled: November 15, 2013Date of Patent: December 26, 2017Assignee: Hitachi, Ltd.Inventors: Akihisa Miyazoe, Takeshi Nakayama, Ryuya Ando, Manabu Aoki
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Patent number: 9847159Abstract: A system for activating trapped field magnets in a superconducting material is disclosed. The system includes a superconducting material element and an electromagnet source disposed proximate the superconducting material element. The electromagnet source is configured to produce a magnetic field pulse sufficient to activate the superconducting material element. Furthermore, substantially all of a magnetic field generated by the magnetic field pulse is contained within an area that has smaller physical lateral dimensions than the superconducting material element.Type: GrantFiled: October 7, 2013Date of Patent: December 19, 2017Assignee: NATIONAL OILWELL VARCO, L.P.Inventors: Drew Paul Parks, Roy Weinstein
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Patent number: 9831021Abstract: A conductor assembly and method for making an assembly of the type which, when conducting current, generates a magnetic field or which, in the presence of a changing magnetic field, induces a voltage. In one series of embodiments the assembly comprises a spiral configuration, positioned along paths in a series of concentric cylindrical planes, with a continuous series of connected turns, each turn including a first arc, a second arc and first and second straight segments connected to one another by the first arc. Each of the first and second straight segments in a turn is spaced apart from an adjacent straight segment in an adjoining turn.Type: GrantFiled: December 6, 2013Date of Patent: November 28, 2017Inventors: Rainer Meinke, Gregory J Shoultz, Gerald M Stelzer
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Patent number: 9824807Abstract: An apparatus comprises multiple electrically conductive loops, an elongated tubular ferromagnetic shield, and an elongated tubular superconductive inner shield. The superconductive inner shield is positioned within the ferromagnetic shield. Each conductive loop includes (i) a thrust segment extending from a first end of the superconductive inner shield outside the ferromagnetic shield to a second end of the superconductive inner shield and (ii) a return segment passing through an interior passage of the superconductive inner shield from the second end of the superconductive inner shield to the first end of the superconductive inner shield. The conductive loops can be spatially arranged relative to a uniform external magnetic field so that interaction between the external magnetic field and electrical current flowing in the conductive loops results in asymmetric magnetic flux density around, and non-zero net force exerted on, the conductive loops.Type: GrantFiled: July 7, 2015Date of Patent: November 21, 2017Inventor: Robert A. Moss
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Patent number: 9784803Abstract: A magnetic resonance scanner includes an antenna system, such as a body coil, mechanically coupled to a support structure, such as a gradient coil, via a suspension system. The suspension system has a setting mechanism in order to reversibly set a coupling parameter value of the mechanical coupling between the antenna system and the support structure and/or a position or location of the antenna system relative to the support structure. The coupling parameter may be set during operation of a magnetic resonance imaging system including the magnetic resonance scanner.Type: GrantFiled: April 11, 2014Date of Patent: October 10, 2017Assignee: Siemens AktiengesellschaftInventors: Razvan Lazar, Martin Schramm
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Patent number: 9758945Abstract: An upper slewing body 3 includes: a bottom plate rotatably attached to a lower traveling body; supporting frames and standing on the bottom plate; an engine supported on the bottom plate by the supporting frames; a generator motor connected to the engine; and a terminal box including a terminal, which is electrically connected to the generator motor and allows a cable to be connected, and a box main body housing the terminal and being attached to the generator motor. The generator motor includes a facing section facing the bottom plate at a position separated from the supporting frames in a plan view. The terminal box is arranged between the facing section of the generator motor and the bottom plate.Type: GrantFiled: April 5, 2016Date of Patent: September 12, 2017Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Seiji Saiki, Kazushige Koiwai, Seiichi Onishi
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Patent number: 9754716Abstract: A current limiter comprises a plurality of electrically conductive wires shaped to define two or more primary coils, the primary coils being connected in parallel; and at least one electrically superconductive element shaped to define a secondary coil, wherein the primary coils are magnetically coupled to the or each secondary coil.Type: GrantFiled: August 1, 2011Date of Patent: September 5, 2017Assignee: GENERAL ELECTRIC TECHNOLOGY GMBHInventor: Francis Mumford
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Patent number: 9691531Abstract: A magnet apparatus which comprises a first vacuum chamber, a second vacuum chamber, a first magnet disposed within the first vacuum chamber such that the first magnet can be thermally isolated from the exterior of the first vacuum chamber, and a load connector extending from the first vacuum chamber into the second vacuum chamber so that a load on the first magnet can be transferred to the second vacuum chamber, wherein the load connector is in thermal contact with the first magnet and can be thermally isolated from the exterior of the first vacuum chamber and the exterior of the second vacuum chamber.Type: GrantFiled: January 27, 2016Date of Patent: June 27, 2017Assignee: TESLA ENGINEERING LIMITEDInventors: Frederick Thomas David Goldie, Patrick Brian Clayton
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Patent number: 9654102Abstract: A circuit breaking system includes a first branch including at least one solid-state snubber; a second branch coupled in parallel to the first branch and including a superconductor and a cryogenic contactor coupled in series; and a controller operatively coupled to the at least one solid-state snubber and the cryogenic contactor and programmed to, when a fault occurs in the load circuit, activate the at least one solid-state snubber for migrating flow of the electrical current from the second branch to the first branch, and, when the fault is cleared in the load circuit, activate the cryogenic contactor for migrating the flow of the electrical current from the first branch to the second branch.Type: GrantFiled: October 9, 2014Date of Patent: May 16, 2017Assignee: General Electric CompanyInventors: Ruxi Wang, William James Premerlani, Antonio Caiafa, Yan Pan
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Patent number: 9640309Abstract: A DC reactor consisting of a coil formed of a superconducting material is provided. It is possible to reduce leakage reactance and to increase critical current by using a coil formed of a high temperature superconducting material and forming a first bobbin of the DC reactor as a toroid shape.Type: GrantFiled: October 25, 2012Date of Patent: May 2, 2017Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION CHANGWON NATIONAL UNIVERSITYInventors: Minwon Park, In-Keun Yu, Jin Geun Kim, Sang Jin Lee, Seock-Ho Kim, Sung-Kyu Kim, Young-Jin Won, Hak-Man Kim, Kyu-Won Jeong
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Patent number: 9620273Abstract: A magnet system generates a highly stable magnetic field at a sample location. The magnet system has a magnet cryostat housing a first superconducting magnet coil and a second magnet coil co-axial to the first magnet coil. The second magnet coil is short-circuited in a superconducting persistent mode during operation of the magnet system. An external power supply during operation supplies current to the first magnet coil via a current lead thereby generating a first magnetic field at the sample location that fluctuates according to the current noise of the power supply, wherein the second magnet coil is positioned and dimensioned in a way that it inductively couples to the first magnet coil such that it generates at the sample location a second magnetic field that compensates the fluctuations of the first magnetic field.Type: GrantFiled: August 15, 2013Date of Patent: April 11, 2017Assignee: Bruker BioSpin GmbHInventor: Arne Kasten
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Patent number: 9588198Abstract: An open type nuclear magnetic resonance magnet system having an iron ring member. A superconducting coil and a superconducting switch form a closed-loop current circuit to generate a magnetic field. The generated magnetic field gains a magnetic flux circuit and executes magnetic field shielding through upper and lower iron yokes and a lateral iron yoke. The magnet system generates a desired magnetic field in a magnet imaging central area via the superconducting coil. To balance the extremely high electromagnetic force between the superconducting coil and the upper and lower iron yokes, an annular iron ring is mounted in a space defined by an inner perimeter wall of in a cryogenic container. The magnetic field distribution between the superconducting coil and the upper and lower iron yokes is changed via the iron ring, so that the electromagnetic interaction force therebetween is reduced.Type: GrantFiled: December 14, 2011Date of Patent: March 7, 2017Assignee: INSTITUTE OF ELECTRICAL ENGINEERING CHINESE ACADEMY OF SCIENCESInventors: Qiuliang Wang, Hui Wang, Xinning Hu, Yinming Dai, Luguang Yan, Jianyi Xu, Housheng Wang, Jianhua Wang
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Patent number: 9575149Abstract: A cooling system includes a first cooling loop containing a first cryogen, the first cooling loop being in thermal communication with a superconducting magnet and being configured to provide primary cooling for the magnet and a second cooling loop also containing the first cryogen. The second cooling loop is in thermal communication with an enclosure containing a second cryogen and is configured to cool the second cryogen within the enclosure. The enclosure is in thermal communication with the superconducting magnet and is configured to provide secondary cooling for the magnet.Type: GrantFiled: December 23, 2014Date of Patent: February 21, 2017Assignee: GENERAL ELECTRIC COMPANYInventors: Yuri Lvovsky, Mark Derakhshan
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Patent number: 9543066Abstract: A cylindrical superconducting magnet has a number of axially-aligned annular coils of superconducting wire, arranged for cooling by thermal conduction through a cooled surface in mechanical contact with the coils. The coils are provided with a cryogenic radiation shield located between respective radially inner surfaces of the coils and respective axes of the coils. The cryogenic radiation shield is formed of a metal layer in thermal contact with the cooled surface.Type: GrantFiled: February 12, 2016Date of Patent: January 10, 2017Assignee: Siemens PLCInventors: Simon James Calvert, Marcel Kruip, Rodrigo Ormeno, Michael Simpkins
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Patent number: 9535143Abstract: A coil support arrangement for a Magnetic Resonance Imaging System and method of support are provided. One coil support arrangement includes a main former body having a plurality of channels between end flanges and a splint coupled to the main former body between the end flanges. The coil support arrangement also includes a load spreader coupled to the main former body adjacent one or more of the ends of the splint, and having a gap between the one or more ends of the splint and the load spreader.Type: GrantFiled: June 27, 2011Date of Patent: January 3, 2017Assignee: General Electric CompanyInventors: Mark Derakhshan, Longzhi Jiang, William Einziger, Xiaoxue Diao, Benjamin Gronemeyer, Erman Citirik
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System and method for measuring parameters of motion of a projectile as it exits the muzzle of a gun
Patent number: 9513095Abstract: A system and method for providing information regarding the trajectory of a projectile is disclosed. The system comprises two subsystems: a non-magnetic sleeve designed to fit over the barrel of a gun, with a series of rings of magnetic material disposed thereupon, and an onboard measurement and control system comprising at least one magnetic sensor and control electronics, located within a projectile. As the projectile passes through the sleeve, the magnetic sensors within the projectile produce signals as the projectile passes through the magnetic rings. From the time profile of the signals thus produced, the projectile's linear and angular muzzle velocities are determined.Type: GrantFiled: February 8, 2012Date of Patent: December 6, 2016Inventor: Yesaiahu Redler -
Patent number: 9390839Abstract: A conductive composite wire includes at least one external jacket made of copper, a first tube including a first metallic material (M1) contacting and located inside the copper jacket; a second tube including a second metallic material (M2) contacting and located inside the first tube; and a fiber including a third metallic material (M3) contacting and located inside the second tube. The copper and the first metallic material are immiscible with each other, the first and second metallic materials are immiscible with each other, and the second and third metallic materials are immiscible with each other. A copper-based coaxial microstructure includes a copper sheath containing an array of nanotubes and nanofibers according to a process for manufacturing the microstructure.Type: GrantFiled: December 9, 2011Date of Patent: July 12, 2016Assignees: Centre National De La Recherche Scientifique, Universite De PoitiersInventors: Ludovic Thilly, Florence Lecouturier, Jean-Baptiste Dubois, Nelson Ferreira, Pierre-Olivier Renault, Patrick Olier
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Patent number: 9390840Abstract: An insulated high-temperature wire superconductor includes a wire of a non-insulated high-temperature wire superconductor, the width of which is at least 10 times its thickness and in which a high-temperature superconductor is introduced into a matrix or is applied to a substrate. The wire is provided with an electrically non-conducting insulating layer on both sides such that the two insulating layers have an insulating edge width in a range from 2 mm to 200 mm which projects in relation to the wire.Type: GrantFiled: July 4, 2012Date of Patent: July 12, 2016Assignee: KARLSRUHER INSTITUT FUER TECHNOLOGIEInventors: Wilfried Goldacker, Stefan Fink, Andrej Kudymow, Steffen Elschner, Joerg Brand
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Patent number: 9381374Abstract: Described herein are shaped coil TMS electromagnets formed by two bent magnetic coil loops joined at a vertex having an angle between the outer coil regions of the coils that is typically less than 120 degrees (e.g., between about 45 and about 70 degrees, 60 degrees, etc.). The vertex region shaped to optimize the magnetic field projected from the TMS electromagnet. For example, the vertex region may be horizontal or vertical. In some variations the vertex region is formed by re-arranging the conductive windings forming the two coils so that they are no longer arranged in the same columnar structure that they are in the other portions of the bent magnetic coil loops. These TMS electromagnets may be well suited for use in deep-brain Transcranial Magnetic Stimulation.Type: GrantFiled: September 14, 2015Date of Patent: July 5, 2016Assignee: Rio Grande Neurosciences, Inc.Inventors: David J. Mishelevich, M. Bret Schneider
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Patent number: 9360540Abstract: A magnetic resonance imaging configuration and methodology to straighten and otherwise homogenize the field lines in the imaging portion, creating improved image quality. Through use of calibrated corrective coils, magnetic field lines can be manipulated to improve uniformity and image quality. Additionally, when the apparatus is composed of non-ferromagnetic materials, field strengths can be increased to overcome limitations of Iron-based systems such as by use of superconductivity. A patient positioning apparatus and methodology allows multi-positioning of a patient within the calibrated and more uniform magnetic field lines.Type: GrantFiled: June 15, 2015Date of Patent: June 7, 2016Assignee: FONAR CorporationInventors: Raymond V. Damadian, Gordon T. Danby, Hank Hsieh, John W. Jackson, Mark Gelbien, William H. Wahl, Charles A. Green
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Patent number: 9322892Abstract: A system and method for magnetic field distortion compensation includes a cryostat for a magnetic resonance imaging (MRI) system. The cryostat includes a vacuum casing having a vacuum therein. A cryogen vessel is disposed within the casing, the vessel having a coolant therein. A thermal shield is disposed between the vacuum casing and the cryogen vessel. An eddy current compensation assembly is disposed within the casing. The eddy current compensation assembly includes a plurality of electrically conductive loops formed on one of the vacuum casing, the cryogen vessel, and the thermal shield and constructed to mitigate vibration-induced eddy currents in the MRI system.Type: GrantFiled: December 24, 2012Date of Patent: April 26, 2016Assignee: General Electric CompanyInventors: Weijun Shen, Timothy John Havens, Longzhi Jiang, Saikat Saha, Benjamin Jacob Gronemeyer, Venkata Kishore Mogatadakala
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Patent number: 9318259Abstract: In a solenoid magnet assembly, and a method for manufacture thereof, the magnet assembly includes a number of concentrically aligned coils, each including a winding impregnated with a resin. Each coil is mechanically restrained so as to hold the coils in fixed relative positions relative to each other when forming the magnet assembly. The mechanical restraint can be formed by annular support sections bonded to the respective coils, lugs bonded to the respective coils, or by lugs that are at least partially embedded in a crust formed on a radially outer surface of the respective windings.Type: GrantFiled: April 15, 2013Date of Patent: April 19, 2016Assignee: Siemens PLCInventors: Ian Dunckley, David William Neil Edington, Edward Wedderburn Kershaw, Matthew John Longfield, Peter Neil Morgan
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Patent number: 9293959Abstract: An apparatus (structure) is provided to support a superconductor winding (61) of an electromotive machine. One or more elongated loops (74) and appropriate support structure (120) may be arranged to provide radial and tangential support to the superconducting winding (61). The elongated loops may be made of a material substantially resistant to heat flow. An axially-extending base assembly (100) may be arranged to anchor loops (74) with respect to the rotor core at a proximate end (76) of the elongated loops. A cradle (80) may be configured to define a recess (82) to receive the superconductor winding and to support the elongated loops at a distal end (78) of the loops.Type: GrantFiled: January 24, 2013Date of Patent: March 22, 2016Assignee: SIEMENS ENERGY, INC.Inventors: Raul Ricardo Rico, Radek Lekes, Tomas Cechak, Pavel Skacel
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Patent number: 9240681Abstract: A superconducting magnet apparatus is provided. The superconducting magnet apparatus includes a power source configured to generate a current; a first switch coupled in parallel to the power source; a second switch coupled in series to the power source; a coil coupled in parallel to the first switch and the second switch; and a passive quench protection device coupled to the coil and configured to by-pass the current around the coil and to decouple the coil from the power source when the coil experiences a quench.Type: GrantFiled: December 27, 2012Date of Patent: January 19, 2016Assignee: General Electric CompanyInventors: Renuka Rajput-Ghoshal, James Humphrie Rochford, Probir Kumar Ghoshal
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Patent number: 9202611Abstract: An arrangement is provided with three superconductive phase conductors each with a conductor, a dielectric and an electrically conductive screen surrounding the dielectric. The three phase conductors are arranged in a cryostat which conducts a cooling agent and which is made from a pipe with a thermal insulation. The screens of each of the conductors are for forming three, or a whole number multiple of three, sections arranged successively in the longitudinal direction by partial screens in a first, a second and a third section at two locations or at two locations spaced apart from each other. The partial screen of a first section of each phase conductor is electrically conductively connected in series to the partial screens of the second section and further to the third section of the two other phase conductors.Type: GrantFiled: July 19, 2013Date of Patent: December 1, 2015Assignee: NEXANSInventors: Mark Stemmle, Beate West
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Patent number: 9182464Abstract: A current lead assembly for minimizing heat load to a conduction cooled superconducting magnet during a ramp operation is provided. The current lead assembly includes a vacuum chamber having a through hole to enable a retractable current lead having a retractable contact to penetrate within the vacuum chamber. A superconducting magnet is arranged inside of the vacuum chamber and includes a magnet lead. A current contact is arranged inside of the vacuum chamber beneath the through-hole and is coupled to the magnet lead via a thermal connector. The current contact is supported by a thermal isolation support structure coupled to an inside wall of the vacuum chamber. An actuator assembly is provided to contact the retractable contact with the current contact, where connection occurs at ambient temperature inside of the thermal isolation support structure.Type: GrantFiled: July 27, 2012Date of Patent: November 10, 2015Assignee: General Electric CompanyInventors: Susumu Mine, Evangelos Trifon Laskaris, Paul St. Mark Shadforth Thompson
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Patent number: 9165704Abstract: In a superconducting magnet apparatus, at least one superconducting winding and an outer vacuum chamber are provided. A thermal radiation shield is located between the superconducting winding and the outer vacuum chamber. A cryogen vessel is positioned within the thermal radiation shield and within the outer vacuum chamber. The superconducting winding is positioned outside of the cryogen vessel. A refrigerator is operable to cool the cryogen vessel to a liquid cryogen temperature and to cool the at least one thermal radiation shield to an intermediate temperature between the liquid cryogen temperature and a temperature of the outer vacuum chamber. A substantial portion of an outer surface of the cryogen vessel has a thermal emissivity at the liquid cryogen temperature which is greater than an average surface emissivity of the superconducting winding by at least 0.1.Type: GrantFiled: June 4, 2013Date of Patent: October 20, 2015Assignee: Siemens PLCInventor: Russell Peter Gore
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Patent number: 9132277Abstract: Described herein are shaped coil TMS electromagnets formed by two bent magnetic coil loops joined at a vertex having an angle between the outer coil regions of the coils that is typically less than 120 degrees (e.g., between about 45 and about 70 degrees, 60 degrees, etc.). The vertex region shaped to optimize the magnetic field projected from the TMS electromagnet. For example, the vertex region may be horizontal or vertical. In some variations the vertex region is formed by re-arranging the conductive windings forming the two coils so that they are no longer arranged in the same columnar structure that they are in the other portions of the bent magnetic coil loops. These TMS electromagnets may be well suited for use in deep-brain Transcranial Magnetic Stimulation.Type: GrantFiled: April 7, 2014Date of Patent: September 15, 2015Assignee: Cerval Neurotech, Inc.Inventors: David J. Mishelevich, M. Bret Schneider
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Patent number: 9071114Abstract: In a method for correcting a coil wound in two layers, the coil is corrected as follows: a conductor is wound from an outside layer toward an inside layer to form a first row; the conductor is wound from the inside layer toward the outside layer to form a second row; the conductor is wound from the outside layer toward the inside layer to form a third row; a crossover portion is formed by connecting adjacent rows of the conductor; and a load is applied to the crossover portion from a coil correcting die through a crossover-portion correcting die so as to push first and second ends of the crossover portion along adjacent rows and move an intermediate portion of the crossover portion to an adjacent row.Type: GrantFiled: May 26, 2011Date of Patent: June 30, 2015Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Yu Tanahashi
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Patent number: 9065306Abstract: The invention offers a superconducting coil, which is an oxide superconducting coil 10 that has the shape of a saddle formed by winding an oxide superconducting wire 11 in the shape of a racetrack and that has a curved portion 10b and a linear portion 10a connected to the curved portion 10b. At least in the central portion of the linear portion 10a, an upper end 10d is positioned at the inner-circumference side in comparison with a lower end 10e. Having the foregoing configuration, the superconducting coil formed of an oxide super-conducting wire can suppress the reduction in its electrical property caused by the lines of magnetic flux when used in a rotating machine such as a motor. The invention also offers a superconducting-coil assembly formed by using the foregoing superconducting coils and a rotating machine incorporating the foregoing superconducting coil (superconducting-coil assembly).Type: GrantFiled: August 3, 2010Date of Patent: June 23, 2015Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Tsuyoshi Shinzato, Hitoshi Oyama
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Patent number: 9057769Abstract: A magnetic resonance imaging configuration to straighten and otherwise homogenize the field lines in the imaging portion, creating improved image quality. Through use of calibrated corrective coils, magnetic field lines can be manipulated to improve uniformity and image quality. Additionally, when the apparatus is composed of non-ferromagnetic materials, field strengths can be increased to overcome limitations of Iron-based systems such as by use of superconductivity. A patient positioning apparatus allows multi-positioning of a patient within the calibrated and more uniform magnetic field lines.Type: GrantFiled: February 8, 2013Date of Patent: June 16, 2015Assignee: FONAR CorporationInventors: Raymond V. Damadian, Gordon T. Danby, Hank Hsieh, John W. Jackson, Mark Gelbien, William H. Wahl, Charles A. Green
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Publication number: 20150133304Abstract: There is provided a high-temperature superconducting (HTS) coil and a method of manufacturing the same, allowing simple and excellent affixation between side panels for cooling the superconducting coil and the HTS coil while inhibiting delamination of an HTS wire. The method of manufacturing the HTS coil including the rare-earth-based HTS wire of the superconducting coil and side panels for cooling the superconducting coil which are affixed thereto, windings of the rare-earth-based HTS wire of the superconducting coil being separated between turns, includes: utilizing a tape-like polytetrafluoroethylene (PTFE) film 3 as an insulator between the windings of the rare-earth-based HTS wire 2 to form a PTFE-film co-wound superconducting coil; impregnating the PTFE-film co-wound superconducting coil 4 with epoxy resin 6; and affixing the side panels 5 to the-PTFE film co-wound superconducting coil 4.Type: ApplicationFiled: November 21, 2014Publication date: May 14, 2015Inventors: KATSUTOSHI MIZUNO, MASAFUMI OGATA, TOMOHISA YAMASHITA
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Publication number: 20150130570Abstract: A cryogenic coil assembly including a coil substrate with a flat surface, and a number of radial channels cut into a region of the flat surface. The cryogenic coil assembly also includes a spiral coil covering the radial channels, and a chemical bonding agent for bonding the spiral coil to the coil substrate. The chemical bonding agent is present within the radial channels.Type: ApplicationFiled: November 7, 2014Publication date: May 14, 2015Inventors: ANDREW HUGILL, Ilia Tomski, Igor Terefenko, Glen B. Sincarsin, Kieran A. Carroll
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Patent number: RE45942Abstract: A superconducting electromagnet comprising coils of superconducting wire bonded to a support structure, and wherein heating elements are provided in thermal contact with the support structure for heating the support structure.Type: GrantFiled: November 5, 2014Date of Patent: March 22, 2016Assignee: Siemens PLCInventors: Hugh Alexander Blakes, Matthew John Longfield, Patrick William Retz