Superconductors Patents (Class 174/125.1)
  • Patent number: 11328841
    Abstract: Methods and devices for producing a superconductive conductor are disclosed. The method includes providing a plurality of conductive strips by means of a strip provision device, applying liquid soldering agent onto the plurality of conductive strips, stacking the conductive strips wetted with soldering agent, and forming a superconductive body by machining the strip stack.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: May 10, 2022
    Inventors: Walter Fietz, Michael J. Wolf, Reinhard Heller, Klaus-Peter Weiss
  • Patent number: 11289640
    Abstract: A high-temperature superconducting filament and cable, and a method for manufacturing same. The substrate used to grow the superconducting layer is removed, and the exfoliated superconducting layer is coated with a protective layer, and then sliced into narrow strips. The strips are thereafter encapsulated with a conductive metal to provide a high-temperature superconducting filament. The filaments may be bundled together to provide a high-temperature superconducting cable.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: March 29, 2022
    Assignee: Brookhaven Technology Group, Inc.
    Inventor: Vyacheslav Solovyov
  • Patent number: 11257618
    Abstract: A transformer includes: an upper E core; a lower E core; a first coil portion disposed so as to cover a magnetic leg of the upper E core and a magnetic leg of the lower E core; and a second coil portion disposed so as to cover the periphery of the first coil portion in a direction perpendicular to the central axis of winding of the first coil portion. The first coil portion includes a bobbin and an edgewise coil wound around the bobbin. The second coil portion includes a bobbin and an edgewise coil wound around the bobbin.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: February 22, 2022
    Inventor: Hiroyuki Miyazaki
  • Patent number: 11250975
    Abstract: Provided is a superconducting fault current limiter having a composite insulating structure. The superconducting fault current limiter includes: a superconducting current limiting unit, an inner composite insulating cylinder, an outer composite insulating cylinder and a low-temperature container. The outer composite insulating cylinder is sleeved inside the low-temperature container; the inner composite insulating cylinder is sleeved inside the outer composite insulating cylinder; the superconducting current limiting unit is sleeved inside the inner composite insulating cylinder. The superconducting current limiting unit and the inner composite insulating cylinder are securely connected through a first support, and the low-temperature container and the outer composite insulating cylinder are securely connected through a second support.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: February 15, 2022
    Assignees: GUANGDONG POWER GRID CO., LTD., ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID CO., LTD.
    Inventors: Meng Song, Lianhong Zhong, Bing Zhao, Li Li, Yunsong Luo, Yajun Xia, Wenfeng Cheng, Zhengjun Shi, Shaotao Dai, Bangzhu Wang, Lei Hu, Tao Ma, Teng Zhang
  • Patent number: 11108120
    Abstract: An architecture for, and techniques for fabricating, a cryogenic microwave filter having reduced Kapitza resistance are provided. In some embodiments, the cryogenic microwave filter can comprise a substrate and a conductive line. The substrate can be formed of a material having a thermal conductivity property that sufficiently reduces Kapitza resistance in the cryogenic environment. The conductive line can be formed in a recess of the substrate and facilitate a filter operation on a microwave signal propagated in a cryogenic environment. In some embodiments, the conductive line can be formed according to a sintering technique that can reduce Kapitza resistance.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: August 31, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Patryk Gumann, Salvatore Bernardo Olivadese
  • Patent number: 11094430
    Abstract: An electric wire conductor having both flexibility and a space-saving property. Also provided are a covered electric wire and a wiring harness containing the electric wire conductor. An electric wire conductor contains a wire strand containing a plurality of elemental wires twisted together. The electric wire conductor has a flat portion in which a cross section intersecting an axial direction of the wire strand has a flat shape. Assuming a conductor cross-sectional area of the flat portion as s mm2 and a vacancy ratio defined as a ratio of vacancies not occupied by the elemental wires in a cross section of the flat portion as v %, the conductor cross-sectional area and the vacancy ratio satisfies v>0.29 s+2.0. The covered electric wire contains electric wire conductor and an insulator covering the conductor. The wiring harness contains the covered electric wire.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: August 17, 2021
    Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Hayato Ooi, Yasuyuki Otsuka, Kinji Taguchi, Toyoki Furukawa, Tooru Tanji, Kei Sakamoto, Tetsuya Kuwabara
  • Patent number: 10957473
    Abstract: A superconducting magnetic energy storage system (SMES). The SMES includes a toroidally wound super conducting magnet having a toroidal magnetic core with a charging winding and a discharging winding. The charging winding and discharging winding are wound on the toroidal magnetic core. The SMES also includes a DC power source, the DC power source operable to provide DC current to the charging winding of the toroidally wound superconducting magnet, and a modulator operably connected to the DC power source and the charging winding, the modulator operable to modulate at least a portion of the DC current applied to the charging winding of the superconducting magnet. The energy is stored in a magnetic field of the superconducting magnet by applying a current to the charging winding of the superconducting magnet, and energy is withdrawn from the magnetic field by a current flowing in the discharging winding.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: March 23, 2021
    Assignee: HAMILTON SUNSTRAND CORPORATION
    Inventor: Gary Van Stephenson
  • Patent number: 10943712
    Abstract: A bundle of superconducting cables employs a plurality of superconducting cables, each having a former and a plurality of superconducting tape conductors wound in at least one layer around the former in a helical fashion. Each superconducting tape conductor has at least one superconducting layer. Each superconducting cable lacks an outer insulating layer and is held in a bundle of cables with each other superconducting cable of the plurality of superconducting cables. A sheath of non-conductive material covers the bundle of cables.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: March 9, 2021
    Assignee: Advanced Conductor Technologies LLC
    Inventor: Daniel Cornelis van der Laan
  • Patent number: 10919729
    Abstract: A self-retracting coiled cable having a variable length along a center line can include an outer insulator sleeve having a longitudinal axis. The self-retracting coiled cable can also include a spring material extending along the longitudinal axis of the outer insulator sleeve. The spring material can hold the outer insulator sleeve in a helical shape around the center line. The spring material can also allow the self-retracting coiled cable to expand upon an application of an axial force to an end of the self-retracting coiled cable, thereby increasing a length of the self-retracting coiled cable, and to retract upon a removal of the axial force from the end of the self-retracting coiled cable, thereby reducing the length of the self-retracting coiled cable. The self-retracting coiled cable can further include multiple wires extending along the longitudinal axis of the outer insulator sleeve and disposed symmetrically around the spring material.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: February 16, 2021
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Kar Ki Loh
  • Patent number: 10896773
    Abstract: Quench protected structured (QPS) superconducting cables, methods of fabricating the same, and methods of bending the same are disclosed. The methods of bending the QPS superconducting cables can be employed to produce windings. The QPS superconducting cables can rapidly drive a distributed quench to a normal conducting state in a superconducting cable if a region of the cable spontaneously quenches during high current operation.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: January 19, 2021
    Assignee: The Texas A&M University System
    Inventors: Peter McIntyre, Akhdiyor Sattarov, Thomas Mann, James Gerity, Klaus Smit, Daniel Chavez, Nathaniel Pogue, Michael Tomsic
  • Patent number: 10894288
    Abstract: A surface-treated ceramic powder includes a plurality of ceramic particles and a surface-treating material. Each of the ceramic particles is at least partially coated by the surface-treating material, wherein the ceramic particles have an average particle diameter ranging from 10 micrometer (?m) to 100 ?m, and the surface-treating material is made of metal, metal oxide or the combination thereof.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: January 19, 2021
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Tai-Sheng Chen, Ming-Sheng Leu, Hong-Jen Lai, Wu-Han Liu
  • Patent number: 10879156
    Abstract: A method comprising incorporating indium into an entire Sn film for preventing the growth of whiskers from the Sn film, wherein the Sn film is applied to a metallic substrate. The indium is present in the entire thickness of the Sn film.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: December 29, 2020
    Assignee: Washington State University
    Inventor: Indranath Dutta
  • Patent number: 10840427
    Abstract: A thermoelectric conversion element includes a cable. The cable includes a first member extended in the axis direction of the cable, and a second member extended in the axis direction to cover at least a part of the outer face of the first member. One of the first and second members is a magnetic body. The other of the first and second members is a conductive body formed of material exhibiting a spin orbit coupling.
    Type: Grant
    Filed: April 3, 2013
    Date of Patent: November 17, 2020
    Assignee: NEC CORPORATION
    Inventors: Masahiko Ishida, Akihiro Kirihara, Shigeru Koumoto
  • Patent number: 10811589
    Abstract: The substrate and buffer layers, of either one-sided or two-sided superconducting tape, are separated from the YCBO layer(s) of the tape by a combined action of radiative or inductive heat and mechanical force via a reel-to-reel manufacturing process. The exfoliation process may also utilize an air blade(s) to facilitate the separation of the layers of the tape.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: October 20, 2020
    Assignee: Brookhaven Technology Group, Inc.
    Inventor: Vyacheslav Solovyov
  • Patent number: 10804018
    Abstract: The present invention is a superconducting partial insulation magnet and a method for providing the same. The magnet includes a coil with a non-insulated superconducting wire winding wound around a bobbin. The coil has a first wire layer, a second wire layer substantially surrounding the first layer, and a first layer of insulating material disposed between the first wire layer and the second wire layer. Each wire layer comprises a plurality of turns, and the first layer of insulating material substantially insulates the second wire layer from the first wire layer.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: October 13, 2020
    Assignee: Massachusetts Institute of Technology
    Inventors: Seungyong Hahn, YoungJae Kim, John Peter Voccio, Juan Bascunan, Yukikazu Iwasa
  • Patent number: 10741309
    Abstract: In various embodiments, superconducting wires incorporate diffusion barriers composed of Ta alloys that resist internal diffusion and provide superior mechanical strength to the wires.
    Type: Grant
    Filed: November 13, 2019
    Date of Patent: August 11, 2020
    Assignee: H.C. STARCK INC.
    Inventors: David Smathers, Paul Aimone
  • Patent number: 10734138
    Abstract: A configuration and a method of constructing a high-temperature superconductor tape including a plurality superconducting filaments sandwiched between a substrate and an overlayer comprising compliant material extending to the substrate through gaps between each superconducting filament thereby isolating each superconducting filament.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: August 4, 2020
    Assignee: University of Houston System
    Inventor: Venkat Selvamanickam
  • Patent number: 10711344
    Abstract: A process for making a composite product comprises the steps of: A. Circumferentially plating a carbon fiber core with an alloy film including a film of high entropy alloy and liquid metal alloy or a film of metallic glass to form a film-clad carbon fiber thread; B. Weaving a plurality of said film-clad carbon fiber threads to form an interlaced film-clad carbon fiber sheet; and C. Vibrationally thermally pressing a plurality of said interlaced film-clad carbon fiber sheets as superimposed with one another to form a composite product.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: July 14, 2020
    Assignee: Taichi Metal Material Technology Co., Ltd.
    Inventors: Kuan-Wei Chen, Po-Jen Wei
  • Patent number: 10699830
    Abstract: There is provided a superconducting magnet device that suppresses interference of a part of a tape wire wound around a center axis with another adjacent part. The number of unit wire layer turns of a first coil among the plurality of first coils is smaller than a mean value of the respective numbers of unit wire layer turns of the plurality of first coils, the number of unit wire layer turns of each of the first coils being expressed by a mean value of the respective numbers of turns of the tape wire in the plurality of wire layers, the first coil being disposed at such a position that compressive force acting on the first coil in a direction in which the center axis extends is the largest on the assumption that the respective numbers of unit wire layer turns of the plurality of first coils were the same.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: June 30, 2020
    Assignees: JAPAN SUPERCONDUCTOR TECHNOLOGY INC., RIKEN
    Inventors: Mamoru Hamada, Yoshinori Yanagisawa
  • Patent number: 10622130
    Abstract: A superconducting magnet in which efficiency of conduction cooling is improved is described as well as a magnetic resonance imaging apparatus that includes the superconducting magnet and requires no liquid helium. The magnet resonance imaging apparatus includes: a coil portion including a winding core, a winding portion formed by winding a wire around the winding core, a first flange provided on one side of the winding core, and a second flange provided on the other side of the winding core; a cooling device for cooling the coil portion; and a heat conducting member for thermally connecting the coil portion and the cooling device, in which at least one of the first flange, the second flange, and the winding core has a region made of a material whose thermal contraction rate is larger than a thermal contraction rate of the winding portion.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: April 14, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Chishin Hori, Manabu Aoki, Akihisa Miyazoe, Yukinobu Imamura
  • Patent number: 10601277
    Abstract: An insulated wire in which at least one layer of an insulating material is coated around a conductor, wherein the insulated wire has a part in which relative permittivity is different in a length direction or a circumferential direction in an identical coating layer and a method of producing the same, and a rotating electrical machine and a method of producing the same.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: March 24, 2020
    Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA MAGNET WIRE CO., LTD.
    Inventors: Yohei Ishii, Tsuneo Aoi
  • Patent number: 10573435
    Abstract: Methods for producing a multifilament Nb3Sn superconducting wire having a Jc value of at least 2000 A/mm2 at 4.2 K and 12 T by a) packing a plurality of Cu encased Nb rods within a first matrix which is surrounded by an intervening Nb diffusion barrier and a second matrix on the other side of the barrier remote from the rods thereby forming a packed subelement for the superconducting wire; b) providing a source of Sn within the subelement; c) assembling the metals within the subelement, the relative sizes and ratios of Nb, Cu and Sn being selected such that (i) the Nb fraction of the subelement cross section including and within the diffusion barrier is from 50 to 65% by area; (ii) the atomic ratio of the Nb to Sn including and within the diffusion barrier of the subelement is from 2.7 to 3.7; (iii) the ratio of the Sn to Cu within the diffusion barrier of the subelement is such that the Sn wt %/(Sn wt %+Cu wt %) is 45%-65%; (iv) the Cu to Nb local area ratio (LAR) of the Cu-encased Nb rods is from 0.10 to 0.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: February 25, 2020
    Assignee: Bruker OST LLC
    Inventors: Michael Field, Hanping Miao, Carlos Sanabria, Jeffrey Parrell
  • Patent number: 10571533
    Abstract: A manufacturing method includes forming a superconductive thin-film layer on a substrate and processing the superconductive thin-film layer into a shape of a detection coil for magnetic resonance measurement. Accordingly, a superconductive thin-film layer having the detection coil shape can be formed. The method further includes irradiating the shape-processed superconductive thin-film layer with ions. Accordingly, lattice defects serving as pinning can be formed in the superconductive thin-film layer.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: February 25, 2020
    Assignee: JEOL Ltd.
    Inventors: Shigetoshi Oshima, Shigenori Tsuji
  • Patent number: 10539634
    Abstract: A manufacturing method includes forming a superconductive thin-film layer on a substrate and processing the superconductive thin-film layer into a shape of a detection coil for magnetic resonance measurement. Accordingly, a superconductive thin-film layer having the detection coil shape can be formed. The method further includes irradiating the shape-processed superconductive thin-film layer with ions. Accordingly, lattice defects serving as pinning can be formed in the superconductive thin-film layer.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: January 21, 2020
    Assignee: JEOL Ltd.
    Inventors: Shigetoshi Oshima, Shigenori Tsuji
  • Patent number: 10509448
    Abstract: The embodiments herein describe technologies of cryogenic digital systems with a power supply located in an ambient temperature domain and logic located in a cryogenic temperature domain. A pair of conductors is operable to carry current with a voltage difference between the power supply and the logic. The pair of conductors includes a first portion thermally coupled to a temperature-regulated or temperature-controlled intermediate temperature domain. The intermediate temperature domain is less than the ambient temperature domain and greater than the cryogenic temperature domain.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: December 17, 2019
    Assignee: Rambus Inc.
    Inventors: Frederick A. Ware, John Eric Linstadt, Patrick R. Gill
  • Patent number: 10510470
    Abstract: In various embodiments, superconducting wires incorporate diffusion barriers composed of Ta alloys that resist internal diffusion and provide superior mechanical strength to the wires.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: December 17, 2019
    Assignee: H.C. STARCK INC.
    Inventors: David Smathers, Paul Aimone
  • Patent number: 10446294
    Abstract: A coated conductor comprises a substrate supporting a ReBCO superconductor adapted to carry current in a superconducting state. The superconductor is characterized in having peaks in critical current (Jc) of at least 0.2 MA/cm2 in a magnetic field of about 1 Tesla when the field is applied normal to the surface of the superconductor and when the field is applied parallel to the surface of the superconductor, and further characterized in that the superconductor includes horizontal defects and columnar detects in a size and an amount sufficient to result in the said critical current response. The conductor is characterized in that the ratio of the height of the peaks in the Jc is in the range from 3:1 with the ratio of the field perpendicular (0 degrees) to the field parallel (+/?90 degrees) to the range from 3:1 with the ratio of the field parallel to the field perpendicular.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: October 15, 2019
    Assignee: Superconductor Technologies Inc.
    Inventor: Jeong-Uk Huh
  • Patent number: 10439125
    Abstract: There is provided methods of manufacturing a superconductor element and a method of manufacturing a phononic element. The method of manufacturing a superconductor element comprises the step of forming a periodic patterned structure in a material to alter an electronic structure in a primary layer (M) of the material to couple with the or each phonon of the primary layer (M) so as to induce superconductivity in the primary layer (M) or modify the superconductivity of the primary layer, and/or create or alter one or more phonons in a primary layer (M) of the material to couple with the electrons of the primary layer (M) so as to induce superconductivity in the primary layer (M) or modify the superconductivity of the primary layer.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: October 8, 2019
    Assignee: Universiteit Leiden
    Inventor: Milan Allan
  • Patent number: 10411756
    Abstract: A wave guide assembly for a control and diagnostic system for a machine, the wave guide assembly includes a housing defining an exterior surface and an internal cavity extending between distal ends. A wave guide is defined within the internal cavity. At least one open conduit is defined within the internal cavity providing a space for routing conductors through the housing. A fluid passage is defined within the internal cavity separate from the wave guide. A control and diagnostic system for a machine and a gas turbine engine are also disclosed.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: September 10, 2019
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Ryan K. Snyder, Eric J. Heims
  • Patent number: 10284042
    Abstract: By using an electrically conductive PTFE fabric, high-voltage insulation systems are simplified and can be made thinner, also improving the thermal conductivity. The insulation material is in two layers, each with a hydrophobic and a hydrophobic region, and the hydrophobic regions of the layers are opposed.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: May 7, 2019
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Mario Brockschmidt, Peter Gröppel, Friedhelm Pohlmann, Claus Rohr, Roland Röding
  • Patent number: 10283243
    Abstract: A superconducting bulk magnet comprising a plurality of superconducting bulk materials combined, in which breakage of superconducting bulk materials is prevented and a strong magnetic field can be generated, that is, a superconducting bulk magnet comprising a plurality of superconducting bulk materials, each comprising a single-crystal formed RE1Ba2Cu3Oy (RE is one or more elements selected from Y or rare earth elements, where 6.8?y?7.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: May 7, 2019
    Assignees: Nippon Steel & Sumitomo Metal Corporation, National University Corporation Tokyo University of Marine Science and Technology
    Inventors: Mitsuru Morita, Hidekazu Teshima, Motohiro Miki, Mitsuru Izumi
  • Patent number: 10262781
    Abstract: Included are: a first superconducting wire rod having a first front surface, and a first back surface, and also having a first superconducting layer, and first reinforcing layers; a second superconducting wire rod having a second front surface, and a second back surface, and also having a second superconducting layer, and second reinforcing layers; and a connection member joining the first superconducting wire rod to the second superconducting wire rod. The first superconducting wire rod has a first edge portion, and the second superconducting wire rod has a second edge portion. The first front surface located at the first edge portion is joined by the connection member to the second front surface located at other than the second edge portion, and the second front surface located at the second edge portion is joined by the connection member to the first front surface located at other than the first edge portion.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: April 16, 2019
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Goro Osabe, Kohei Yamazaki, Takeshi Kato
  • Patent number: 10262776
    Abstract: The present invention relates to a superconductor and a method of manufacturing the same. The superconductor comprises: a substrate having a tape shape that extends in a first direction and having surfaces which are defined as a top surface, a bottom surface, and both side surfaces; a superconductive layer positioned on the top surface of the substrate; a first stabilizing layer disposed on the superconductive layer and containing a first metal; a protective layer disposed on the first stabilizing layer and containing a second metal which is different from the first metal; and an first alloy layer disposed between the stabilizing layer and the protective layer and containing the first and second metals.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: April 16, 2019
    Assignee: Sunam Co., Ltd.
    Inventors: Kyu Han Choi, Seung Hyun Moon, Soon Chul Hwang, Hun Ju Lee, Cheol Yeong Jang, Woong Kwon
  • Patent number: 10163550
    Abstract: In order to obtain a highly versatile superconducting cable capable of absorbing differences in thermal contraction amounts that arise between three members, these being a cable core, an inner tube, and an outer tube, and to obtain a superconducting cable manufacturing method of the same, a superconducting cable includes a thermal insulation vacuum tube and a cable core. The thermal insulation vacuum tube includes an inner tube fixed at both ends and having a cooling medium filled inside, and an outer tube disposed at an outer peripheral side of the inner tube with a space between the outer tube and the inner tube maintained at a vacuum, and is configured to include a winding section wound with one or more turns. The cable core is fixed at both ends and disposed inside the inner tube.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: December 25, 2018
    Assignee: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Tomohiro Takagi, Masashi Yagi
  • Patent number: 10068688
    Abstract: A composition for a plurality of configurations of a high-temperature superconductor tape including a superconducting film disposed on a compliant film or sandwiched or captured between at least one pair of compliant film layers.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: September 4, 2018
    Assignee: University of Houston System
    Inventor: Venkat Selvamanickam
  • Patent number: 10062479
    Abstract: A method for constructing a superconductive cable system is proposed. Using this method, at least one superconductive cable (2) is mounted in a tubular cryostat (3) serving for guiding a cooling agent by means of which the cryostat (3) equipped with the cable (2) and wherein the cable (2) and the cryostat (3) are transported to the placement location and both ends are connected to units. The cable (2) is mounted in a cryostat (3) which at both axial ends (3b, 3c) protrudes beyond the cable (2). The unit of cable (2) and cryostat (3) is transported to the placement location. The ends (3b, 3c) protruding beyond the cable (2) are cut to a predetermined length. The superconductive cable (2) and the cryostat (3) are subsequently connected to the units.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: August 28, 2018
    Assignee: NEXANS
    Inventors: Mark Stemmle, Erik Marzahn
  • Patent number: 10037835
    Abstract: Quench protected structured (QPS) superconducting cables, methods of fabricating the same, and methods of bending the same are disclosed. The methods of bending the QPS superconducting cables can be employed to produce windings. The QPS superconducting cables can rapidly drive a distributed quench to a normal conducting state in a superconducting cable if a region of the cable spontaneously quenches during high current operation.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: July 31, 2018
    Assignee: The Texas A&M University System
    Inventors: Peter McIntyre, Akhdiyor Sattarov, Thomas Mann, James Gerity, Klaus Smit, Daniel Chavez, Nathaniel Pogue, Michael Tomsic
  • Patent number: 9991437
    Abstract: A method for forming superconducting connection structure between at least two superconducting wires is disclosed, where each wire includes at least one superconducting filament. An end piece of each superconducting wire may be positioned inside a cavity of a pressing tool. A contacting material including MgB2 and/or a precursor material for MgB2 may also be positioned inside the cavity. Pressure may be applied to the contacting material through the pressing tool, and the contacting material may be heated inside the cavity. Pressure and heat may be applied simultaneously, at least during part of the process. A superconducting connection structure including at least two superconducting wires, each wire including at least one superconducting filament, and a superconducting connection between the end pieces of the two wires is also disclosed. The connection may be formed of heated and compressed contacting material including MgB2.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: June 5, 2018
    Assignee: SIEMENS PLC
    Inventors: Hannah Brice, Wolfgang Haessler, Marijn Pieter Oomen, Juliane Scheiter, Mariusz Wozniak, Steffen Ziller
  • Patent number: 9984795
    Abstract: In various embodiments, superconducting wires incorporate diffusion barriers composed of Ta alloys that resist internal diffusion and provide superior mechanical strength to the wires.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: May 29, 2018
    Assignee: H.C. STARCK INC.
    Inventors: David B. Smathers, Paul Aimone
  • Patent number: 9966167
    Abstract: The present invention provides a system and method for producing superconducting joints between superconductive segments of a Bi-2212 high-temperature superconducting (HTS) conductor, thereby eliminating the heat generating resistive joints that are commonly known in the art for connecting two or more smaller Bi-2212 conductive segments to create an Bi-2212 conductor of adequate length.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: May 8, 2018
    Assignee: The Florida State University Research Foundation, Inc.
    Inventors: Ulf Peter Trociewitz, Peng Chen, David K. Hilton, Dmytro V. Abraimov, William L. Starch, David C. Larbalestier, Jianyi Jiang, Eric E. Hellstrom, Ernesto S. Bosque, Maxime Matras
  • Patent number: 9960577
    Abstract: To provide a wiring harness and a routing structure of the wiring harness able to prevent high temperature and its influence caused by heat generation. A wiring harness includes a harness main body having a plurality of high voltage conducting lines. The high voltage conducting lines are arranged with gaps between the adjacent high voltage conducting lines. Further, the plurality of high voltage conducting lines are arranged to maintain an interval as the gap. It becomes a routing structure of the wiring harness when curved portions of such high voltage conducting lines are directly or indirectly made contact with a shield cover covering the wiring harness. Because the high voltage conducting lines of the wiring harness are arranged with gaps between the adjacent high voltage conducting lines, radiation performance of the wiring harness is better than the wiring harness of which high voltage conducting lines are bundled.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: May 1, 2018
    Assignee: Yazaki Corporation
    Inventors: Hideomi Adachi, Hidehiko Kuboshima
  • Patent number: 9959956
    Abstract: A cable winding machine for winding transposed cable from multiple serpentine subconductors such as in particular Roebel cable from such 2G HTS tape, without damaging the tape through edge-wise bending, comprises a conductor supply stage carrying subconductor supply spools to move the supply spools about a machine axis and maintain the supply spools in a common orientation as the subconductors unwind and move through the machine in a machine direction, and a cable forming stage after the conductor supply stage in the machine direction, arranged to bring together the subconductors and at which the subconductors interleave to form the transposed cable.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: May 1, 2018
    Assignee: GENERAL CABLE SUPERCONDUCTORS LIMITED
    Inventors: Lachlan Cameron Clelland, Christopher William Bumby, Rodney Alan Badcock
  • Patent number: 9941033
    Abstract: A method and system for manufacturing a superconducting material is described. In one embodiment, a layer of refractory cushion is placed over a spool. A first layer of superconducting cable is wound over the first layer of refractory cloth. The superconducting cable is reaction heat-treated on the spool. A first layer of refractory fabric can be placed over the layer of refractory cushion. One or more adjustment mechanisms can be disposed between the first layer of the superconducting cable and the spool.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: April 10, 2018
    Assignee: LUVATA WATERBURY, INC.
    Inventors: Taeyoung Pyon, Hem Kanithi
  • Patent number: 9899679
    Abstract: A cathode for a seawater battery and a method for making the cathode are disclosed. The cathode is made using a mixture of copper sulfate monohydrate and anhydrous copper sulfate at a mass percentage of 70-92%, conductive carbon powder at a mass percentage of 1-10%, conductive carbon fiber at a mass percentage of 1-10%, polyethylene PE powder at a mass percentage of 3-15%, and polyethylene wax at a mass percentage of 3-12%; and using metal titanium sheet or nickel sheet as a current collecting electrode. The cathode prevents the battery from the problems of slow activation when meeting water and of inferior output in fresh water.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: February 20, 2018
    Assignee: XIAMEN LONAKO INDUSTRY & TRADE CO., LTD.
    Inventor: Ting Lun Wu
  • Patent number: 9859039
    Abstract: Methods and devices involving 2212 multifilament superconducting wire with resistance sleeves. More specifically, methods and devices including high resistance sleeves around individual, unmerged filaments or filament bundles, with axial twist, and with round or rectangular wire shape for lower losses in and ramped fields.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: January 2, 2018
    Inventor: Alexander Otto
  • Patent number: 9828206
    Abstract: A method of winding a conductor in double pancake, including a first pancake and a second pancake, a reel initially containing the conductor, the method including: a first step in which the reel is placed on a tensioner and a first portion of the conductor is wound around a storage volume; a second step in which a first part of the conductor is inserted in a winding mandrel to change the layer; a third step in which a second portion of the conductor is wound around a first part of the storage volume so as to form a first pancake; a fourth step in which the first portion of the conductor is unwound from the storage volume and is wound around the reel; and a fifth step in which the first portion of the conductor is wound around a second part of the storage volume to form a second pancake.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: November 28, 2017
    Assignee: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES
    Inventors: Raphaël Pasquet, Thierry Schild, Christophe Berriaud, Loris Scola
  • Patent number: 9793032
    Abstract: Methods and devices for producing reinforced 2212 multifilament superconducting wire with low aspect shape. More specifically, methods and devices for producing reinforced round or rectangular wire with reinforcement strips. Methods and devices for producing cable using the reinforced 2212 multifilament superconducting wire as well as for producing reinforced 2223 Silver tape-based cable.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: October 17, 2017
    Inventor: Alexander Otto
  • Patent number: 9786415
    Abstract: A configuration and a method of constructing a high-temperature superconductor tape including a plurality superconducting filaments sandwiched between a substrate and an overlayer, and having a compliant material extending between the substrate and the overlayer and isolating each superconducting filament.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: October 10, 2017
    Assignee: University of Houston System
    Inventor: Venkat Selvamanickam
  • Patent number: 9767940
    Abstract: Superconducting cables employ one or more superconducting tapes wound around a former. A compact superconducting cable is configured using a former having a small diameter, e.g., less than 10 millimeters. A flexible superconducting cable is configured with a former made of a flexible material. Superconducting tape conductors are wound around the former, with the superconducting layer in compression on the inside of the wind turns of the wind, to prevent irreversible damage to the superconductor. A layer of solder is on the superconducting tape(s) or solder sheaths are wound between tape conductors in each layer. The one or more solder layers or sheaths are melted to cause the solder to flow within the structure, to bond some or all of the superconducting tape conductors together and form a mechanically strong cable with an enhanced level of electrical connectivity between tapes in the cable.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: September 19, 2017
    Assignee: The Regents of the University of Colorado, a body corporate
    Inventor: Daniel Cornelis van der Laan
  • Patent number: 9767941
    Abstract: A superconducting power transmission system that comprises an inner pipe housing a superconducting cable therein, a radiation covering at least a part of the inner pipe from outside; and an outer pipe housing the inner pipe and the radiation shield therein. A vacuum is created in a space from an inside of the outer pipe to an outside of the inner pipe with the radiation shield therebetween. The system further comprises at least one radiation shield pipe, housed in the outer pipe and thermally coupled with the radiation shield, a liquefied natural gas (LNG) as a second cryogen for the radiation shield being made to flow through the radiation shield pipe.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: September 19, 2017
    Assignees: CHUBU UNIVERSITY EDUCATIONAL FOUNDATION, JGC CORPORATION
    Inventors: Sataro Yamaguchi, Hirofumi Watanabe