Patents by Inventor Alexander Usoskin
Alexander Usoskin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20120015814Abstract: A high temperature superconductor (=HTS) coated conductor (1), comprising an HTS layer (11) deposited epitaxially on a substrate (2), wherein the HTS layer (11) exhibits a lattice with a specific crystal axis being oriented perpendicular to the substrate plane (SP), in particular wherein the HTS layer material is of ReBCO type and the c-axis (c) is oriented perpendicular to the substrate plane (SP), wherein the HIS layer (11) comprises particle inclusions (4),in particular wherein the particle inclusions (4) may be used to introduce pinning of magnetic flux, is characterized in that at least a part (4a) of the particle inclusions (4) are formed of the same material as the HTS layer (11), and/or of chemical fractions of the material of the HTS layer (11), such that the average stoichiometry of said part (4a) of the particle inclusions (4) corresponds to the stoichiometry of the HTS layer (11), and that the particle inclusions of said part (4a) are discontinuities of the lattice of the HTS layer (11).Type: ApplicationFiled: July 18, 2011Publication date: January 19, 2012Applicant: Bruker HTS GmbHInventors: Alexander Usoskin, Klaus Schlenga
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Publication number: 20120002336Abstract: A method for current conditioning, comprising transporting a primary current (1) through a primary coil (2), coupling a secondary coil (3) to the primary coil (2) via a common magnetic flux, wherein the secondary coil (3) comprises a superconductor capable of quenching, with the quenching causing a transition of the superconductor from a low resistance superconducting state to a high resistance quenched state, and in the low resistance superconducting state of the secondary coil (3), guiding a major fraction (8) of the common magnetic flux of the primary coil (2) and the secondary coil (3) within a ferromagnetic medium (5a), is characterized by upon quenching, switching the common magnetic flux such that a major fraction (17) of the common magnetic flux is guided outside the ferromagnetic medium (5a) in the high resistance quenched state of the superconductor. An economic and efficient method for current conditioning is thereby provided which reduces harmonic distortions.Type: ApplicationFiled: September 15, 2010Publication date: January 5, 2012Inventors: Alexander Usoskin, Hans-Udo Klein
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Publication number: 20110294670Abstract: A fault current limiter and a method for the production thereof has a superconducting device (1; 21; 31; 41; 51; 61; 71; 72) comprising a sequence of superconducting elements (2a-2f), each with an electrically conducting substrate (3a-3d), a superconducting film (5a-5d) and an electrically insulating intermediate layer (4a-4c) provided between the substrate and the superconducting film. The superconducting films (5a-5d) of adjacent superconducting elements (2a-2f) of the sequence are electrically connected, in particular in series, wherein the electrically conducting substrate (3a-3d) of each superconducting element (2a-2f) of the sequence is electrically insulated from each electrically conducting substrate (3a-3d) of those adjacent superconducting elements (2a-2f) within the sequence whose superconducting films (5a-5d) are electrically connected in series with the superconducting film (5a-5d) of said superconducting element (2a-2f).Type: ApplicationFiled: August 5, 2011Publication date: December 1, 2011Inventors: Francis James Mumford, Alexander Usoskin
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Publication number: 20110294671Abstract: A fault current limiter, with a superconducting device (1; 21; 31; 41; 51; 61; 71; 72) comprising a sequence of superconducting elements (2a-2f), each with an electrically conducting substrate (3a-3d), a superconducting film (5a-5d), and an electrically insulating intermediate layer (4a-4c) provided between the substrate and the superconducting film, wherein the superconducting films (5a-5d) of adjacent superconducting elements (2a-2f) of the sequence are electrically connected, in particular in series, wherein the electrically conducting substrate (3a-3d) of each superconducting element (2a-2f) of the sequence is electrically insulated from each electrically conducting substrate (3a-3d) of those adjacent superconducting elements (2a-2f) within the sequence whose superconducting films (5a-5d) are electrically connected in series with the superconducting film (5a-5d) of said superconducting element (2a-2f).Type: ApplicationFiled: August 5, 2011Publication date: December 1, 2011Inventors: Francis James Mumford, Alexander Usoskin
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Publication number: 20110281735Abstract: A fault current limiter, with a superconducting device (1; 21; 31; 41; 51; 61; 71; 72) comprising a sequence of superconducting elements (2a-2f), each with—a substrate (3a-3d), —a superconducting film (5a-5d), and —an intermediate layer (4a-4c) provided between the substrate and the superconducting film, wherein the superconducting films (5a-5d) of adjacent superconducting elements (2a-2f) of the sequence are electrically connected, in particular in series, is characterized in that the substrates (3a-3d) of the superconducting elements (2a-2d) are electrically conducting substrates (3a-3d), wherein the electrically conducting substrate (3a-3d) of each superconducting element (2a-2f) of the sequence is electrically insulated from each electrically conducting substrate (3a-3d) of those adjacent superconducting elements (2a-2f) within the sequence whose superconducting films (5a-5d) are electrically connected in series with the superconducting film (5a-5d) of said superconducting element (2a-2f), and that the inType: ApplicationFiled: November 25, 2009Publication date: November 17, 2011Inventors: Francis James Mumford, Alexander Usoskin
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Publication number: 20110263432Abstract: A tape-type superconductor (1), comprising an elongated substrate (2), in particular a metal tape, and a continuous superconducting layer (3), in particular of a HTS type material, deposited on the substrate (2), is characterized in that Ic?/Ic??1.5, with Ic? being the width density of critical current of the continuous superconducting layer (3) in parallel to the substrate (2) and in parallel to the elongated direction of the substrate (2), and with Ic? being the width density of critical current of the continuous superconducting layer (3) in parallel to the substrate (2) and perpendicular to the elongated direction of the substrate (2). The tape-type superconductor has reduced ac losses.Type: ApplicationFiled: April 25, 2011Publication date: October 27, 2011Applicant: Bruker HTS GmbHInventors: Alexander Usoskin, Klaus Schlenga
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Patent number: 7829156Abstract: A method and an apparatus serve to produce thin films having a biaxial crystal orientation. The method includes the steps of: depositing atoms on a substrate, the atoms having a composition corresponding to the thin film to be produced; bombarding the deposited atoms with an energized beam, the energized beam being oriented with respect to the substrate at an angle of a defined range of angles, the step of bombarding substantially taking place during a different time period than the step of depositing; and alternately repeating the step of depositing and the step of bombarding for a plurality of times.Type: GrantFiled: February 16, 2006Date of Patent: November 9, 2010Assignee: Bruker HTS GmbHInventors: Alexander Usoskin, Lutz Kirchhoff
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Publication number: 20100099571Abstract: A superconducting cable (1; 10; 30) has a channel (4, 38) for a cooling liquid, a tubular support structure (5, 37), at least two layers (2, 3; 11-15; 31, 32, 35, 36) comprising high Tc conductors (2a, 3a) which comprise a high Tc material, and an insulation (7, 17), in particular a tubular insulation (7). The conductors (3a) of the outer layer (3; 13-15; 33, 36) comprise a first high Tc material that is different from a second high Tc material of the conductors (2a) of the inner layer (2; 11-12; 32, 35), wherein the first high Tc material exhibits lower AC losses as compared the second high Tc material, and that the high Tc conductors (3a) of the outer layer (3; 13-15; 33, 36) comprise normal-conducting interruptions (41, 42, 43). The superconducting cable exhibits reduced AC losses.Type: ApplicationFiled: July 7, 2009Publication date: April 22, 2010Applicant: Bruker HTS GmbHInventor: Alexander Usoskin
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Publication number: 20100005813Abstract: A cryostat for electric power conditioner comprising external walls (1, 3, 11) in contact with an ambient medium, internal walls (2, 12, 13) in contact with a cooled medium and a thermal insulating gap (4, 14) formed between the external walls (1, 3, 11) and the internal walls (2, 12, 13). At least one part of the at least one external wall (1, 3, 11) and/or at least one part of the at least one internal wall (2, 12, 13) of the cryostat comprises a layered structure (15, 16, 17).Type: ApplicationFiled: July 9, 2009Publication date: January 14, 2010Applicant: Bruker HTS GmbHInventor: Alexander Usoskin
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Publication number: 20090270261Abstract: The device has a quenchable superconductor (1), a first metallic member (2) electrically coupled with the quenchable superconductor (1), a second metallic member (3) electrically coupled to the first metallic member (2). The first metallic member (2) is thermally and electrically coupled with the quenchable superconductor (1) due to their direct surface contact. The superconducting device has a second metallic member (3) with a resistive element (4) and an electrical coupling (5) with the first metallic member (2). The resistive element (4) of the second metallic member (3) is thermally decoupled from the first metallic member (2). The first metallic member (2) has a substantially higher electrical resistance compared to the second metallic member (3).Type: ApplicationFiled: March 4, 2009Publication date: October 29, 2009Applicant: Bruker HTS GmbHInventor: Alexander Usoskin
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Patent number: 7586717Abstract: An electrical device for current conditioning has a primary spool, a secondary spool which has a quenchable superconductor exhibiting a transition from a low resistive state to a high resistive state when a critical value of the electric current is exceeded. The secondary spool is coupled through a common part of magnetic flux with the primary spool, the secondary spool further has a metallic member 6 which form a closed loop circuit, and a cryostat 5 providing a cooling of the secondary spool. The secondary spool 2,3 has at least one element 3 based on a substantial fraction of a non-quenchable conductor that exhibits a minor dependence of its resistance on current and magnetic field, and a fraction of the quenchable superconductor and at least one turn of the non-quenchable conductor 3 and the quenchable superconductor 2 is electrically jointed in series providing a closed loop circuit.Type: GrantFiled: January 11, 2007Date of Patent: September 8, 2009Assignee: European High Temperature Superconductors GmbH & Co. KGInventors: Alexander Usoskin, Burkhard Prause
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Patent number: 7394628Abstract: An apparatus for regulation of electrical power has a superconducting member exhibiting a capability of quenching at the electrical current exceeding a threshold value, a metallic member coupled to the superconducting member, a thermally insulated and tight internal container filled with a portion of a liquid fraction of a cooling agent and a portion of a gas fraction of the cooling agent. The internal container being capable to provide a cooling of the superconducting member and the metallic member by their direct contact with the liquid fraction of the cooling agent in and to provide a mass exchange of the cooling agent between the internal container and an external container. The mass exchange of the cooling agent has a mass flow controller for the cooling agent which is output from the inner container; a controller of an instantaneous pressure in the internal container, and a delay circuit providing a pre-determined time-delay for mass flow controller operation.Type: GrantFiled: January 11, 2007Date of Patent: July 1, 2008Assignee: European High Temperature SuperconductorsInventor: Alexander Usoskin
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Publication number: 20070184985Abstract: An apparatus for regulation of electrical power has a superconducting member exhibiting a capability of quenching at the electrical current exceeding a threshold value, a metallic member coupled to the superconducting member, a thermally insulated and tight internal container filled with a portion of a liquid fraction of a cooling agent and a portion of a gas fraction of the cooling agent. The internal container being capable to provide a cooling of the superconducting member and the metallic member by their direct contact with the liquid fraction of the cooling agent in and to provide a mass exchange of the cooling agent between the internal container and an external container. The mass exchange of the cooling agent has a mass flow controller for the cooling agent which is output from the inner container; a controller of an instantaneous pressure in the internal container, and a delay circuit providing a pre-determined time-delay for mass flow controller operation.Type: ApplicationFiled: January 11, 2007Publication date: August 9, 2007Inventor: Alexander Usoskin
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Publication number: 20070173410Abstract: An electrical device for current conditioning has a primary spool, a secondary spool which has a quenchable superconductor exhibiting a transition from a low resistive state to a high resistive state when a critical value of the electric current is exceeded. The secondary spool is coupled through a common part of magnetic flux with the primary spool, the secondary spool further has a metallic member 6 which form a closed loop circuit, and a cryostat 5 providing a cooling of the secondary spool. The secondary spool 2,3 has at least one element 3 based on a substantial fraction of a non-quenchable conductor that exhibits a minor dependence of its resistance on current and magnetic field, and a fraction of the quenchable superconductor and at least one turn of the non-quenchable conductor 3 and the quenchable superconductor 2 is electrically jointed in series providing a closed loop circuit.Type: ApplicationFiled: January 11, 2007Publication date: July 26, 2007Inventors: Alexander Usoskin, Burkhard Prause
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Publication number: 20060182891Abstract: A method and an apparatus serve to produce thin films having a biaxial crystal orientation. The method includes the steps of: depositing atoms on a substrate, the atoms having a composition corresponding to the thin film to be produced; bombarding the deposited atoms with an energized beam, the energized beam being oriented with respect to the substrate at an angle of a defined range of angles, the step of bombarding substantially taking place during a different time period than the step of depositing; and alternately repeating the step of depositing and the step of bombarding for a plurality of times.Type: ApplicationFiled: February 16, 2006Publication date: August 17, 2006Inventors: Alexander Usoskin, Lutz Kirchhoff
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Patent number: 6541121Abstract: A superconducting element comprising a high temperature superconducting film deposited on a stainless steel substrate that includes a composition of nickel; chromium; silicon; manganese; and iron. Optionally, carbon; phosphorous; sulfur; nitrogen; and unavoidable impurities will be present.Type: GrantFiled: February 1, 2001Date of Patent: April 1, 2003Assignees: Zentrum fuer Funktionswerkstoffe Gemeinnuetzige Gesellschaft mbH, Alcatel Kabel AG & Co.Inventors: Alexander Usoskin, Herbert Freyhardt, Friedrich Harten
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Patent number: 6506439Abstract: An apparatus and process for applying a superconductive layer on an elongate substrate that includes moving the elongate substrate through a heating zone, applying a pulsed laser beam against a target, having a length, that is coated with superconductive material wherein particles of superconductive material are separated from the target and strike the elongate substrate with a plasma beam in the heating zone, and oscillating the pulsed laser beam across the target to provide a substantially uniform coating of superconductive material on the elongate substrate.Type: GrantFiled: November 22, 2000Date of Patent: January 14, 2003Assignee: Zentrum für Funktionswerkstoffe Gemeinnuetzige Gesellschaft mbHInventors: Alexander Usoskin, Herbert Carl Freyhardt, Juergen Knoke
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Publication number: 20020110708Abstract: A superconducting element comprising a high temperature superconducting film deposited on a stainless steel substrate that includes a composition of nickel; chromium; silicon; manganese; and iron. Optionally, carbon; phosphorous; sulfur; nitrogen; and unavoidable impurities will be present.Type: ApplicationFiled: February 1, 2001Publication date: August 15, 2002Applicant: Zentrum fuer Funktionswerkstoffe Gemeinnuetzige Gesellschaft mbH, and Alcatel Kabel AG & CO.Inventors: Alexander Usoskin, Herbert Freyhardt, Friedrich Harten
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Patent number: 5846911Abstract: A method of producing a superconductive coating (19) on an elongated substrate (12) is indicated, whereby the substrate (12) is drawn through a deposition chamber (1) in which it is also heated in a heating zone (2) and is coated with a superconducting material. To improve the current carrying capacity, the substrate (12) is coated with the superconducting material in a geometric form which differs from the use of the finished product in a way so that a compressive strain is created in the substrate plane of the superconductive coating (19) for the geometric form of the substrate (12) taking place when it is put to use.Type: GrantFiled: July 8, 1997Date of Patent: December 8, 1998Assignee: Alcatel Alsthom Compagnie Generale d'ElectriciteInventors: Herbert C. Freyhardt, Alexander Usoskin, Francisco Garcia-Moreno