Patents by Inventor Chresten Traeholt

Chresten Traeholt 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).

  • Patent number: 9331468
    Abstract: Cable end section comprises end-parts of N electrical phases/neutral, and a thermally-insulation envelope comprising cooling fluid. The end-parts each comprises a conductor and are arranged with phase 1 innermost, N outermost surrounded by the neutral, electrical insulation being between phases and N and neutral. The end-parts comprise contacting surfaces located sequentially along the longitudinal extension of the end-section. A termination unit has an insulating envelope connected to a cryostat, special parts at both ends comprising an adapter piece at the cable interface and a closing end-piece terminating the envelope in the end-section. The special parts houses an inlet and/or outlet for cooling fluid. The space between an inner wall of the envelope and a central opening of the cable is filled with cooling fluid. The special part at the end connecting to the cryostat houses an inlet or outlet, splitting cooling flow into cable annular flow and termination annular flow.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: May 3, 2016
    Assignee: NKT CABLES ULTERA A/S
    Inventors: Chresten Traeholt, Dag Willen, Mark Roden, Jerry C. Tolbert, David Lindsay, Paul W. Fisher, Carsten Thidemann Nielsen
  • Publication number: 20140135222
    Abstract: Cable end section comprises end-parts of N electrical phases/neutral, and a thermally-insulation envelope comprising cooling fluid. The end-parts each comprises a conductor and are arranged with phase 1 innermost, N outermost surrounded by the neutral, electrical insulation being between phases and N and neutral. The end-parts comprise contacting surfaces located sequentially along the longitudinal extension of the end-section. A termination unit has an insulating envelope connected to a cryostat, special parts at both ends comprising an adapter piece at the cable interface and a closing end-piece terminating the envelope in the end-section. The special parts houses an inlet and/or outlet for cooling fluid. The space between an inner wall of the envelope and a central opening of the cable is filled with cooling fluid. The special part at the end connecting to the cryostat houses an inlet or outlet, splitting cooling flow into cable annular flow and termination annular flow.
    Type: Application
    Filed: November 26, 2013
    Publication date: May 15, 2014
    Applicant: NKT Cables Ultera A/S
    Inventors: Chresten Traeholt, Dag Willen, Mark Roden, Jerry C. Tolbert, David Lindsay, Paul W. Fisher, Carsten Thidemann Nielsen
  • Patent number: 8624109
    Abstract: This invention relates to a termination unit comprising an end-section of a cable. The end section of the cable defines a central longitudinal axis and comprising end-parts of N electrical phases, an end-part of a neutral conductor and a surrounding thermally insulation envelope adapted to comprising a cooling fluid.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: January 7, 2014
    Assignee: NKT Cables Ultera A/S
    Inventors: Chresten Traeholt, Dag Willen, Mark Roden, Jerry C. Tolbert, David Lindsay, Paul W. Fisher, Carsten Thidemann Nielsen
  • Patent number: 8623787
    Abstract: The invention relates to a superconductive multi-phase, fluid-cooled cable system comprising a) a cable comprising at least three electrical conductors constituting at least two electrical phases and a zero- or neutral conductor, said electrical conductors being mutually electrically insulated from each other, and b) a thermal insulation defining a central longitudinal axis and having an inner surface and surrounding the cable, said inner surface of said thermal insulation forming the radial limitation of a cooling chamber for holding a cooling fluid for cooling said electrical conductors. The invention further relates to a method of manufacturing a cable system and to its use. The object of the present invention is to provide a simplified manufacturing and installation scheme for a fluid cooled cable system.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: January 7, 2014
    Assignee: NKT Cables Ultera A/S
    Inventors: Dag Willen, Chresten Traeholt, Manfred Daumling, Jerry C. Tolbert, Mark Roden, David Lindsay
  • Patent number: 8594756
    Abstract: The invention relates to a superconducting element joint comprising a joint between two superconducting elements comprising at least one direct SC-SC transition joint. By the invention an improved superconducting element joint may be obtained. The invention also relates to a process for providing such superconducting element joint and a superconducting cable system comprising such superconducting element joint.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: November 26, 2013
    Assignee: NKT Cables Ultera A/S
    Inventors: Mark Roden, Jerry C. Tolbert, Carsten Thidemann Nielsen, Chresten Traeholt
  • Publication number: 20130244881
    Abstract: The invention relates to a superconducting element joint comprising a joint between two superconducting elements comprising at least one direct SC-SC transition joint. By the invention an improved superconducting element joint may be obtained. The invention also relates to a process for providing such superconducting element joint and a superconducting cable system comprising such superconducting element joint.
    Type: Application
    Filed: May 9, 2013
    Publication date: September 19, 2013
    Applicant: NKT Cables Ultera A/S
    Inventors: Mark Roden, Jerry C. Tolbert, Carsten Thidemann Nielsen, Chresten Traeholt, Paul W. Fisher, David Lindsay, Dag Willen
  • Patent number: 8463341
    Abstract: The invention relates to a superconducting element joint comprising a joint between two superconducting elements comprising at least one direct SC-SC transition joint. By the invention an improved superconducting element joint may be obtained. The invention also relates to a process for providing such superconducting element joint and a superconducting cable system comprising such superconducting element joint.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: June 11, 2013
    Assignee: NKT Cables Ultera A/S
    Inventors: Mark Roden, Jerry C. Tolbert, Carsten Thidemann Nielsen, Chresten Traeholt
  • Patent number: 8442605
    Abstract: The invention relates to power cable comprising, at least one HTS-tape and a cooling system comprising a fluid cooling medium for cooling the at least one HTS-tape. The at least one HTS-tape being at least partly surrounded by a cooling layer comprising said fluid cooling medium and an electrical insulation at least partly impregnated with said fluid medium. The power cable of the invention has shown to reduce the risk of fault current and electrically breakdown. When extra cooling is needed for stable operation the cooling medium may evaporate in the cooling layer for providing the cooling.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: May 14, 2013
    Assignee: NKT Cables Ultera A/S
    Inventors: Dag Willen, Chresten Traeholt, Carsten Thidemann Nielsen
  • Patent number: 8326386
    Abstract: The invention relates to a superconductive multi-phase, fluid-cooled cable system comprising a) a cable comprising at least three electrical conductors constituting at least two electrical phases and a zero- or neutral conductor, said electrical conductors being mutually electrically insulated from each other, and b) a thermal insulation defining a central longitudinal axis and having an inner surface and surrounding the cable, said inner surface of said thermal insulation forming the radial limitation of a cooling chamber for holding a cooling fluid for cooling said electrical conductors. The invention further relates to a method of manufacturing a cable system and to its use. The object of the present invention is to provide a simplified manufacturing and installation scheme for a fluid cooled cable system.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: December 4, 2012
    Assignee: NKT Cables Ultera A/S
    Inventors: Dag Willén, Chresten Traeholt, Manfred Däumling, Jerry C. Tolbert, Mark Roden, David Lindsay
  • Publication number: 20100227764
    Abstract: The invention relates to a superconductive multi-phase, fluid-cooled cable system comprising a) a cable comprising at least three electrical conductors constituting at least two electrical phases and a zero- or neutral conductor, said electrical conductors being mutually electrically insulated from each other, and b) a thermal insulation defining a central longitudinal axis and having an inner surface and surrounding the cable, said inner surface of said thermal insulation forming the radial limitation of a cooling chamber for holding a cooling fluid for cooling said electrical conductors. The invention further relates to a method of manufacturing a cable system and to its use. The object of the present invention is to provide a simplified manufacturing and installation scheme for a fluid cooled cable system.
    Type: Application
    Filed: April 21, 2006
    Publication date: September 9, 2010
    Applicant: NKT CABLES ULTERA A/S
    Inventors: Dag Willén, Chresten Traeholt, Manfred Däumling, Jerry C. Tolbert, Mark Roden, David Lindsay
  • Publication number: 20100184604
    Abstract: The invention relates to a superconducting element joint comprising a joint between two superconducting elements comprising at least one direct SC-SC transition joint. By the invention an improved superconducting element joint may be obtained. The invention also relates to a process for providing such superconducting element joint and a superconducting cable system comprising such superconducting element joint.
    Type: Application
    Filed: June 23, 2008
    Publication date: July 22, 2010
    Applicant: NKT CABLES ULTERA A/S
    Inventors: Mark Roden, Jerry C. Tolbert, Carsten Thidemann Nielsen, Chresten Traeholt, Paul W. Fisher, David Lindsay, Dag Willen
  • Publication number: 20100179064
    Abstract: The invention relates to power cable comprising, at least one HTS-tape and a cooling system comprising a fluid cooling medium for cooling the at least one HTS-tape. The at least one HTS-tape being at least partly surrounded by a cooling layer comprising said fluid cooling medium and an electrical insulation at least partly impregnated with said fluid medium. The power cable of the invention has shown to reduce the risk of fault current and electrically breakdown. When extra cooling is needed for stable operation the cooling medium may evaporate in the cooling layer for providing the cooling.
    Type: Application
    Filed: June 4, 2008
    Publication date: July 15, 2010
    Applicant: NKT CABLES ULTERA A/S
    Inventors: Dag Willen, Chresten Traeholt, Carsten Thidemann Nielsen
  • Publication number: 20100126748
    Abstract: This invention relates to a termination unit comprising an end-section of a cable. The end section of the cable defines a central longitudinal axis and comprising end-parts of N electrical phases, an end-part of a neutral conductor and a surrounding thermally insulation envelope adapted to comprising a cooling fluid.
    Type: Application
    Filed: March 19, 2008
    Publication date: May 27, 2010
    Applicant: NKT CABLES ULTERA A/S
    Inventors: Chresten Traeholt, Dag Willen, Mark Roden, Jerry C. Tolbert, David Lindsay, Paul W. Fisher, Carsten Thidemann Nielsen