Superconductive Type Patents (Class 335/216)
  • Patent number: 9758945
    Abstract: 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: Grant
    Filed: April 5, 2016
    Date of Patent: September 12, 2017
    Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Seiji Saiki, Kazushige Koiwai, Seiichi Onishi
  • Patent number: 9754716
    Abstract: 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: Grant
    Filed: August 1, 2011
    Date of Patent: September 5, 2017
    Assignee: GENERAL ELECTRIC TECHNOLOGY GMBH
    Inventor: Francis Mumford
  • Patent number: 9691531
    Abstract: 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: Grant
    Filed: January 27, 2016
    Date of Patent: June 27, 2017
    Assignee: TESLA ENGINEERING LIMITED
    Inventors: Frederick Thomas David Goldie, Patrick Brian Clayton
  • Patent number: 9654102
    Abstract: 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: Grant
    Filed: October 9, 2014
    Date of Patent: May 16, 2017
    Assignee: General Electric Company
    Inventors: Ruxi Wang, William James Premerlani, Antonio Caiafa, Yan Pan
  • Patent number: 9640309
    Abstract: 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: Grant
    Filed: October 25, 2012
    Date of Patent: May 2, 2017
    Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION CHANGWON NATIONAL UNIVERSITY
    Inventors: 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
  • Patent number: 9620273
    Abstract: 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: Grant
    Filed: August 15, 2013
    Date of Patent: April 11, 2017
    Assignee: Bruker BioSpin GmbH
    Inventor: Arne Kasten
  • Patent number: 9588198
    Abstract: 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: Grant
    Filed: December 14, 2011
    Date of Patent: March 7, 2017
    Assignee: INSTITUTE OF ELECTRICAL ENGINEERING CHINESE ACADEMY OF SCIENCES
    Inventors: Qiuliang Wang, Hui Wang, Xinning Hu, Yinming Dai, Luguang Yan, Jianyi Xu, Housheng Wang, Jianhua Wang
  • Patent number: 9575149
    Abstract: 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: Grant
    Filed: December 23, 2014
    Date of Patent: February 21, 2017
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Yuri Lvovsky, Mark Derakhshan
  • Patent number: 9543066
    Abstract: 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: Grant
    Filed: February 12, 2016
    Date of Patent: January 10, 2017
    Assignee: Siemens PLC
    Inventors: Simon James Calvert, Marcel Kruip, Rodrigo Ormeno, Michael Simpkins
  • Patent number: 9535143
    Abstract: 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: Grant
    Filed: June 27, 2011
    Date of Patent: January 3, 2017
    Assignee: General Electric Company
    Inventors: Mark Derakhshan, Longzhi Jiang, William Einziger, Xiaoxue Diao, Benjamin Gronemeyer, Erman Citirik
  • Patent number: 9513095
    Abstract: 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: Grant
    Filed: February 8, 2012
    Date of Patent: December 6, 2016
    Inventor: Yesaiahu Redler
  • Patent number: 9390839
    Abstract: 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: Grant
    Filed: December 9, 2011
    Date of Patent: July 12, 2016
    Assignees: Centre National De La Recherche Scientifique, Universite De Poitiers
    Inventors: Ludovic Thilly, Florence Lecouturier, Jean-Baptiste Dubois, Nelson Ferreira, Pierre-Olivier Renault, Patrick Olier
  • Patent number: 9390840
    Abstract: 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: Grant
    Filed: July 4, 2012
    Date of Patent: July 12, 2016
    Assignee: KARLSRUHER INSTITUT FUER TECHNOLOGIE
    Inventors: Wilfried Goldacker, Stefan Fink, Andrej Kudymow, Steffen Elschner, Joerg Brand
  • Patent number: 9381374
    Abstract: 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: Grant
    Filed: September 14, 2015
    Date of Patent: July 5, 2016
    Assignee: Rio Grande Neurosciences, Inc.
    Inventors: David J. Mishelevich, M. Bret Schneider
  • Patent number: 9360540
    Abstract: 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: Grant
    Filed: June 15, 2015
    Date of Patent: June 7, 2016
    Assignee: FONAR Corporation
    Inventors: Raymond V. Damadian, Gordon T. Danby, Hank Hsieh, John W. Jackson, Mark Gelbien, William H. Wahl, Charles A. Green
  • Patent number: 9322892
    Abstract: 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: Grant
    Filed: December 24, 2012
    Date of Patent: April 26, 2016
    Assignee: General Electric Company
    Inventors: Weijun Shen, Timothy John Havens, Longzhi Jiang, Saikat Saha, Benjamin Jacob Gronemeyer, Venkata Kishore Mogatadakala
  • Patent number: 9318259
    Abstract: 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: Grant
    Filed: April 15, 2013
    Date of Patent: April 19, 2016
    Assignee: Siemens PLC
    Inventors: Ian Dunckley, David William Neil Edington, Edward Wedderburn Kershaw, Matthew John Longfield, Peter Neil Morgan
  • Patent number: 9293959
    Abstract: 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: Grant
    Filed: January 24, 2013
    Date of Patent: March 22, 2016
    Assignee: SIEMENS ENERGY, INC.
    Inventors: Raul Ricardo Rico, Radek Lekes, Tomas Cechak, Pavel Skacel
  • Patent number: 9240681
    Abstract: 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: Grant
    Filed: December 27, 2012
    Date of Patent: January 19, 2016
    Assignee: General Electric Company
    Inventors: Renuka Rajput-Ghoshal, James Humphrie Rochford, Probir Kumar Ghoshal
  • Patent number: 9202611
    Abstract: 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: Grant
    Filed: July 19, 2013
    Date of Patent: December 1, 2015
    Assignee: NEXANS
    Inventors: Mark Stemmle, Beate West
  • Patent number: 9182464
    Abstract: 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: Grant
    Filed: July 27, 2012
    Date of Patent: November 10, 2015
    Assignee: General Electric Company
    Inventors: Susumu Mine, Evangelos Trifon Laskaris, Paul St. Mark Shadforth Thompson
  • Patent number: 9165704
    Abstract: 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: Grant
    Filed: June 4, 2013
    Date of Patent: October 20, 2015
    Assignee: Siemens PLC
    Inventor: Russell Peter Gore
  • Patent number: 9132277
    Abstract: 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: Grant
    Filed: April 7, 2014
    Date of Patent: September 15, 2015
    Assignee: Cerval Neurotech, Inc.
    Inventors: David J. Mishelevich, M. Bret Schneider
  • Patent number: 9071114
    Abstract: 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: Grant
    Filed: May 26, 2011
    Date of Patent: June 30, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yu Tanahashi
  • Patent number: 9065306
    Abstract: 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: Grant
    Filed: August 3, 2010
    Date of Patent: June 23, 2015
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Tsuyoshi Shinzato, Hitoshi Oyama
  • Patent number: 9057769
    Abstract: 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: Grant
    Filed: February 8, 2013
    Date of Patent: June 16, 2015
    Assignee: FONAR Corporation
    Inventors: Raymond V. Damadian, Gordon T. Danby, Hank Hsieh, John W. Jackson, Mark Gelbien, William H. Wahl, Charles A. Green
  • Publication number: 20150130570
    Abstract: 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: Application
    Filed: November 7, 2014
    Publication date: May 14, 2015
    Inventors: ANDREW HUGILL, Ilia Tomski, Igor Terefenko, Glen B. Sincarsin, Kieran A. Carroll
  • Publication number: 20150133304
    Abstract: 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: Application
    Filed: November 21, 2014
    Publication date: May 14, 2015
    Inventors: KATSUTOSHI MIZUNO, MASAFUMI OGATA, TOMOHISA YAMASHITA
  • Patent number: 9019054
    Abstract: 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: Grant
    Filed: October 4, 2013
    Date of Patent: April 28, 2015
    Assignee: Tesla Engineering Limited
    Inventors: Frederick Thomas David Goldie, Patrick Brian Clayton
  • Patent number: 9013255
    Abstract: A method of the present invention includes: a step of shimming an MRI superconducting magnet in consideration of the magnetic field atmosphere of a use place; a step of generating a rated magnetic field in the MRI superconducting magnet thus shimmed, under an environment in which the magnetic field atmosphere of the use place is realized; and a step of installing the MRI superconducting magnet in the use place after the step of generating the rated magnetic field. This reduces possibility of occurrence of quench and improves stability in the MRI superconducting magnet.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: April 21, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventor: Hajime Tanabe
  • Patent number: 8988176
    Abstract: A superconducting magnet device is configured to include: a refrigerant circulation flowpath in which a refrigerant (R) circulates; a refrigerator for cooling vapor of the refrigerant (R) in the refrigerant circulation flowpath; a superconducting coil cooled by the circulating refrigerant (R); a protective resistor thermally contacting the superconducting coil and having an internal space (S); a high-boiling-point refrigerant supply section for supplying a high-boiling-point refrigerant having a higher boiling point than the refrigerant (R) and frozen by the refrigerant (R) to the internal space (S) in the protective resistor; and a vacuum insulating container for at least accommodating the refrigerant circulation flowpath, the superconducting coil, and the protective resistor.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: March 24, 2015
    Assignee: Hitachi, Ltd.
    Inventors: Manabu Aoki, Ryuya Ando, Yukihiro Murata, Ryoji Nakagawa
  • Publication number: 20150080222
    Abstract: A cryogen recondensing system and a superconducting magnet apparatus including the cryogen recondensing system are provided. The cryogen recondensing system includes a primary reservoir configured to store cryogen for cooling a superconducting coil, a refrigerator configured to recondense gas cryogen of cryogen stored in the primary reservoir, a secondary reservoir configured to store gas cryogen, and a secondary reservoir tube configured to connect the primary reservoir to the secondary reservoir, and wherein the gas cryogen flows through the secondary reservoir tube.
    Type: Application
    Filed: September 17, 2014
    Publication date: March 19, 2015
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Oh-soo KWON, Do-woon KIM, Jae-hyun SHIN
  • Publication number: 20150080224
    Abstract: A coil unit is formed of an oxide superconducting wire having a surface in a form of a strip and wound. A residual magnetic field restraint unit is disposed in the coil unit. The residual magnetic field restraint unit has a throughhole extending in an axial direction of the coil unit. The residual magnetic field restraint unit is formed of a magnetic substance. A residual magnetic field can thus be restrained.
    Type: Application
    Filed: May 10, 2013
    Publication date: March 19, 2015
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Takashi Nishimura, Takeshi Kato
  • Publication number: 20150072864
    Abstract: A superconducting magnet system includes a coil support structure, superconducting coils, and electrically and thermally conductive windings. The superconducting coils and the conductive windings are supported by the coil support structure. Each conductive winding is electromagnetically coupled with a corresponding superconducting coil. Each conductive winding is electrically shorted.
    Type: Application
    Filed: November 3, 2014
    Publication date: March 12, 2015
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Anbo Wu, Minfeng Xu, Timothy James Hollis, Ye Bai, Weijun Shen, Evangelos Trifon Laskaris, Jian-She Wang, Yan Zhao
  • Patent number: 8973378
    Abstract: Systems and methods from removing heat generated by a heat sink of a magnetic resonance imaging (MRI) system are provided. One system includes a coldhead sleeve cooling arrangement for a coldhead of the MRI system. The coldhead sleeve cooling arrangement includes a coldhead sleeve configured to receive therein a coldhead of an MRI system and a cooling system surrounding an outer surface of the coldhead sleeve. The cooling system uses helium gas to remove heat from the coldhead sleeve.
    Type: Grant
    Filed: May 6, 2010
    Date of Patent: March 10, 2015
    Assignee: General Electric Company
    Inventors: Longzhi Jiang, Jalal Zia, John Scaturro, Jr., William Einziger
  • Publication number: 20150065780
    Abstract: A multi-orientation cryostat 5 for a superconducting magnet 4 for use in a plurality of orientations. The cryostat 5 comprises a vessel 6 for holding cryogenic liquid and, leading away from the vessel, a quench duct 7 for allowing escape from the vessel of gas generated by boiling of the cryogenic liquid due to quenching of the magnet. The quench duct 7 is sinuous so as to provide at least to differently orientated anti-convection portions 71, each portion for functioning as an anti-convection portion with the cryostat in a respective corresponding orientation.
    Type: Application
    Filed: August 19, 2014
    Publication date: March 5, 2015
    Inventors: Benjamin David Leigh, Masayuki Nakatsu
  • Publication number: 20150065350
    Abstract: A coil arrangement formed from a stripe-shaped superconductor assembly is composed of metal substrate (3) and at least one superconductor layer (4, 5) wherein the coil arrangement is such, that in adjacent turns current flow is in opposite direction in operation, and wherein the substrate side (3) is in a region without magnetic field by sandwiching the substrate side (3) between superconductor layers (4, 5) of same current direction during operation.
    Type: Application
    Filed: June 13, 2014
    Publication date: March 5, 2015
    Inventor: Achim Hobl
  • Patent number: 8970337
    Abstract: 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: Grant
    Filed: September 22, 2011
    Date of Patent: March 3, 2015
    Assignee: Siemens PLC
    Inventors: Ian Dunckley, David William Neil Edington, Edward Wedderburn Kershaw, Matthew John Longfield, Peter Neil Morgan
  • Patent number: 8965468
    Abstract: A persistent-mode High Temperature Superconductor (HTS) shim coil is provided having at least one rectangular shaped thin sheet of HTS, wherein the thin sheet of HTS contains a first long portion, a second long portion parallel to first long portion, a first end, and a second end parallel to the first end. The rectangular shaped thin sheet of high-temperature superconductor has a hollow center and forms a continuous loop. In addition, the first end and the second end are folded toward each other forming two rings, and the thin sheet of high-temperature superconductor has a radial build that is less than 5 millimeters (mm) and able to withstand very strong magnetic field ranges of greater than approximately 12 Tesla (T) within a center-portion of a superconducting magnet of a superconducting magnet assembly.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: February 24, 2015
    Assignee: Massachusetts Institute of Technology
    Inventor: Yukikazu Iwasa
  • Patent number: 8952698
    Abstract: 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 magnetic field lines.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: February 10, 2015
    Assignee: Fonar Corporation
    Inventors: Raymond V. Damadian, Gordon T. Danby, Hank Hsieh, John W. Jackson, Mark Gelbien, William H. Wahl, Charles A. Green
  • Patent number: 8952773
    Abstract: A device for the creation of propulsive force comprising a magnet, such as a permanent magnet or a superconductive solenoid, fixedly mounted at the narrow end of a converging nozzle made of a superconductor, such as a type II superconductor, e.g. like the rare earth Ba—Cu—O superconductors Sm—Ba—Cu—O or Y—Ba—Cu—O. The magnetic field generated by the interaction of the magnet with the superconducting nozzle due to Meissner effect, acts in the form of pressure on nozzle thereby producing a propulsive force directed toward the nozzle's converging end. The propulsive force being developed may be used for propelling or actuating any machine or vehicle, as well as in the production of energy.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: February 10, 2015
    Inventor: Athanassios A. Nassikas
  • Patent number: 8952775
    Abstract: A superconductive magnet includes a superconductive coil that is an air-core coil; a pair of bobbin bodies that support the superconductive coil while interposing the superconductive coil therebetween on both sides of a center axial line direction of the superconductive coil; an outer circumference-side binding portion that extends in the center axial line direction on an outer circumferential side of the superconductive coil to bind the pair of bobbin bodies; and a belt-shaped or a wire-shaped inner circumference-side tension imparted portion which extends in the center axial line direction on an inner circumferential side of the superconductive coil to connect the pair of bobbin bodies, and on which tension is imparted in the center axial line direction.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: February 10, 2015
    Assignee: Sumitomo Heavy Industries, Ltd.
    Inventor: Hitoshi Mitsubori
  • Patent number: 8950194
    Abstract: In order to minimize the loss of cryogen during transportation of superconductive magnet systems, or indeed at any time that the refrigerator is turned off, part of the boil-off gas is directed from the cryogen vessel through the refrigerator interface and past the refrigerator to cool the refrigerator. Some of the heat conducted along the refrigerator into the system is intercepted and removed by that part of the boil-off gas. The heat load onto the cryogenic vessel is thereby reduced, which in turn reduces the boil-off of cryogen from the cryogenic vessel. This part of the boil-off gas is then vented from the system along with the remainder of the boil-off gas, for example to leave the cryogenic liquid vessel via the access neck.
    Type: Grant
    Filed: May 12, 2005
    Date of Patent: February 10, 2015
    Assignee: Siemens PLC
    Inventors: Timothy John Hughes, Stephen Paul Trowell, Keith White
  • Patent number: 8943676
    Abstract: A method of manufacturing a solenoidal magnet structure, comprising the steps of providing a collapsible mold in which to wind coils; winding wire into defined positions (88) in the mold to form coils (34); placing a preformed tubular mechanical support structure (102, 120) over the coils (34) so wound; impregnating the coils and bonding them to the mechanical support structure by applying a thermosetting resin and allowing the thermosetting resin to harden; and collapsing the mold and removing the resultant solenoidal magnet structure comprising the resin impregnated coils and the mechanical support structure from the mold as a single solid piece.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: February 3, 2015
    Assignee: Siemens PLC.
    Inventors: Graham Hutton, Jonathan Noys, Adrian Mark Thomas
  • Patent number: 8947184
    Abstract: The present disclosure relates to a cyclotron. Embodiments of the present disclosure may include an upper and lower magnet pole, an upper and lower superconducting coil arranged around each of the magnetic poles, a ring-shaped magnetic return yoke, a beam chamber between the upper and lower magnetic poles having one or more electrodes configured to accelerate ions moving substantially in the median plane, and a cryostat. The ring-shaped magnetic return yoke and the coils may form a cold mass contained within the cryostat. Further, the cryostat may not contain the upper and lower poles.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: February 3, 2015
    Assignee: Ion Beam Applications, S.A.
    Inventors: Yves Jongen, Eric Forton
  • Patent number: 8948829
    Abstract: An oxide superconducting bulk magnet member includes a plurality of bulk sections that have outer circumferences with outer circumferential dimensions different from each other and are disposed in a manner such that among the outer circumferences, an outer circumference in which the outer circumferential dimension is relatively large surrounds a small outer circumference; and interposed sections that are disposed between a pair of the bulk sections that are adjacent to each other, wherein a gap is formed between the bulk sections adjacent to each other, each of the bulk sections is an oxide bulk in which an RE2BaCuO5 phase is dispersed within an REBa2Cu3O7-x phase, and a bulk section having the smallest outer circumferential dimension among the bulk sections has a columnar shape or a ring shape, and bulk sections other than the bulk section having the smallest outer circumferential dimension have a ring shape.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: February 3, 2015
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventors: Mitsuru Morita, Hidekazu Teshima
  • Publication number: 20150024941
    Abstract: A superconducting magnet includes a pair of superconducting coils, two heat shields surrounding the pair of superconducting coils, respectively, two vacuum chambers accommodating the two heat shields, respectively, and facing each other with a predetermined space sandwiched therebetween, a magnetic shield covering at least a portion of the two vacuum chambers, and two position adjustment mechanisms supporting the two vacuum chambers, respectively, in a position-adjustable manner. The two position adjustment mechanisms change distribution of a static magnetic field formed in the predetermined space by the pair of superconducting coils, by adjusting relative positional relation between the two vacuum chambers.
    Type: Application
    Filed: April 20, 2012
    Publication date: January 22, 2015
    Applicant: Mitsubishi Electric Corpaorion
    Inventor: Hajime Tamura
  • Publication number: 20150018218
    Abstract: A mechanically operating superconducting switch has two superconducting wires, a respective end of each superconducting wire being embedded in a respective block of superconducting material. A mechanical arrangement is provided for driving respective contact surfaces of the blocks into physical contact with each other, and for separating those services.
    Type: Application
    Filed: January 18, 2013
    Publication date: January 15, 2015
    Applicant: SIEMENS PLC
    Inventors: M'Hamed Lakrimi, Adrian Mark Thomas
  • Publication number: 20150018220
    Abstract: A superconducting magnet and method for making a superconducting magnet, are presented. The superconducting magnet is made by forming a coil from windings of a first wire comprising a reacted MgB2 monofilament, filling a cavity of a stainless steel billet with a Mg+B powder. Monofilament ends of the first wire and a similar second wire are sheared at an acute angle and inserted into the billet. A copper plug configured to partially fill the billet cavity is inserted into the billet cavity. A portion of the billet adjacent to the plug and the wires is sealed with a ceramic paste.
    Type: Application
    Filed: July 14, 2014
    Publication date: January 15, 2015
    Applicant: Massachusetts Institute of Technology
    Inventors: Seungyong Hahn, Yukikazu lwasa, Juan Bascunan, John Peter Voccio, Jiayin Ling, Jungbin Song, YoungJae Kim
  • Patent number: RE45942
    Abstract: 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: Grant
    Filed: November 5, 2014
    Date of Patent: March 22, 2016
    Assignee: Siemens PLC
    Inventors: Hugh Alexander Blakes, Matthew John Longfield, Patrick William Retz