Patents by Inventor Bjorgvin Hjorvarsson

Bjorgvin Hjorvarsson 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: 10332662
    Abstract: An apparatus for, and a method of controlling magnetic anisotropy in a magnetic material comprises directing a layer of powdered metal material to a heat conducting substrate. Electromagnetic energy is applied to the powdered material sufficient to melt the powdered material which is subsequently cooled to create a solid layer on the substrate. An external magnetic field is applied to the material during at least the cooling step so as to imprint the solid magnetic material layer with magnetic anisotropy. Various novel magnetic structures can be fabricated using the technique.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: June 25, 2019
    Assignee: EXMET AB
    Inventors: Mattias Unosson, Björgvin Hjörvarsson, Vassilios Kapaklis, Fridrik Magnus
  • Patent number: 10190932
    Abstract: The present invention relates to a method for preventing gases and fluids to penetrate a surface of an object, comprising the steps of: depositing (S1) an amorphous metal (5) on a surface of an object (4); forming (S2) a continuous layer of the amorphous metal (5) on the surface of the object (4); binding (S3) the amorphous metal (5) to the surface of the object by chemical binding; and passivation (S4) of a surface of the amorphous metal (5) facing away from the surface of the object (4).
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: January 29, 2019
    Assignee: INFICON GMBH
    Inventors: Per Bjorkman, Bjorgvin Hjorvarsson
  • Patent number: 9660405
    Abstract: An electrical device including an electrode arrangement having a magnet, and an electrode, an electrically conducting movable device, movable relative to the electrode arrangement and spaced apart from the electrode arrangement, whereby a gap (G) is formed therebetween, and a suspension including a liquid, a plurality of magnetic particles dispersed in the liquid and a plurality of non-magnetic electrically conducting particles dispersed in the liquid, which non-magnetic electrically conducting particles have higher electric conductivity than the magnetic particles, wherein the suspension) extends between the electrically movable device and the electrode arrangement in the gap (G), and wherein the magnet is arranged to provide a magnetic field through the suspension to thereby align the non-magnetic electrically conducting particles between the electrode arrangement and the electrically conducting movable device to obtain an electrical connection between the electrode arrangement and the electrically conducti
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: May 23, 2017
    Assignee: ABB Schweiz AG
    Inventors: Hauke Carstensen, Björgvin Hjörvarsson, Max Wolff, Vassilios Kapaklis
  • Publication number: 20170040765
    Abstract: An electrical device including an electrode arrangement having a magnet, and an electrode, an electrically conducting movable device, movable relative to the electrode arrangement and spaced apart from the electrode arrangement, whereby a gap (G) is formed therebetween, and a suspension including a liquid, a plurality of magnetic particles dispersed in the liquid and a plurality of non-magnetic electrically conducting particles dispersed in the liquid, which non-magnetic electrically conducting particles have higher electric conductivity than the magnetic particles, wherein the suspension) extends between the electrically movable device and the electrode arrangement in the gap (G), and wherein the magnet is arranged to provide a magnetic field through the suspension to thereby align the non-magnetic electrically conducting particles between the electrode arrangement and the electrically conducting movable device to obtain an electrical connection between the electrode arrangement and the electrically conducti
    Type: Application
    Filed: April 24, 2015
    Publication date: February 9, 2017
    Applicant: ABB Schweiz AG
    Inventors: Hauke Carstensen, Björgvin Hjörvarsson, Max Wolff, Vassilios Kapaklis
  • Publication number: 20160307678
    Abstract: An apparatus for, and a method of controlling magnetic anisotropy in a magnetic material comprises directing a layer of powdered metal material to a heat conducting substrate. Electromagnetic energy is applied to the powdered material sufficient to melt the powdered material which is subsequently cooled to create a solid layer on the substrate. An external magnetic field is applied to the material during at least the cooling step so as to imprint the solid magnetic material layer with magnetic anisotropy. Various novel magnetic structures can be fabricated using the technique.
    Type: Application
    Filed: December 10, 2014
    Publication date: October 20, 2016
    Applicant: EXMET AB
    Inventors: Mattias UNOSSON, Björgvin HJÖRVARSSON, Vassilios KAPAKLIS, Fridrik MAGNUS
  • Publication number: 20160252419
    Abstract: The present invention relates to a method for preventing gases and fluids to penetrate a surface of an object, comprising the steps of: depositing (S1) an amorphous metal (5) on a surface of an object (4); forming (S2) a continuous layer of the amorphous metal (5) on the surface of the object (4); binding (S3) the amorphous metal (5) to the surface of the object by chemical binding; and passivation (S4) of a surface of the amorphous metal (5) facing away from the surface of the object (4).
    Type: Application
    Filed: October 28, 2013
    Publication date: September 1, 2016
    Inventors: Per BJORKMAN, Bjorgvin HJORVARSSON
  • Publication number: 20070286325
    Abstract: The present invention relates to a control rod for a nuclear plant. The control rod is arranged to be provided in a fuel assembly of the nuclear plant and to be in contact with cooling water. The control rod comprises at least an inner space which is adapted to receive an absorber material for allowing absorption of neutrons during operation of the nuclear plant. The absorber material allows formation of at least one gaseous substance during said absorption process. The control rod comprises at least a filter member having a material structure which allows passage of the gaseous substance out from the space at the same time as the material structure prevents a passage of surrounding cooling water into the space.
    Type: Application
    Filed: September 8, 2005
    Publication date: December 13, 2007
    Applicant: Westinghouse Electric Sweden AB
    Inventors: Per Tagtstrom, Bjorn Rebensdorff, Bjorgvin Hjorvarsson, Peter Isberg
  • Patent number: 7151347
    Abstract: A niobium cavity exhibiting high quality factors at high gradients is provided by treating a niobium cavity through a process comprising: 1) removing surface oxides by plasma etching or a similar process; 2) removing hydrogen or other gases absorbed in the bulk niobium by high temperature treatment of the cavity under ultra high vacuum to achieve hydrogen outgassing; and 3) assuring the long term chemical stability of the niobium cavity by applying a passivating layer of a superconducting material having a superconducting transition temperature higher than niobium thereby reducing losses from electron (cooper pair) scattering in the near surface region of the interior of the niobium cavity. According to a preferred embodiment, the passivating layer comprises niobium nitride (NbN) applied by reactive sputtering.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: December 19, 2006
    Assignee: Jefferson Science Associates LLC
    Inventors: Ganapati Rao Myneni, Bjorgvin Hjorvarsson, Gianluigi Ciovati