Patents by Inventor André Johann Blindheim

André Johann Blindheim 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).

  • Transmission system for communication between downhole elements
    Patent number: 9217327
    Abstract: The invention relates to a transmission system for transmitting signals between an inner and an outer unit separated by an annular pipe section wall, wherein said inner unit is provided with a first antenna and the second unit is provided with a second antenna, the antennas preferably constituted by coils, being adapted to be brought into essentially the same positions along the pipe section, wherein said pipe section is made from a material having low magnetic permeability and wherein at least one of the antennas is provided magnetic shield having high magnetic permeability, the corresponding antenna being positioned between the pipe wall and the magnetic shield and the magnetic shield extending along the length of the antenna.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: December 22, 2015
    Assignee: Roxar Flow Measurement AS
    Inventors: Christophe Tarayre, André Johann Blindheim, Øyvind Wetteland
  • TRANSMISSION SYSTEM FOR COMMUNICATION BETWEEN DOWNHOLE ELEMENTS
    Publication number: 20130048269
    Abstract: The invention relates to a transmission system for transmitting signals between an inner and an outer unit separated by an annular pipe section wall, wherein said inner unit is provided with a first antenna and the second unit is provided with a second antenna, the antennas preferably constituted by coils, being adapted to be brought into essentially the same positions along the pipe section, wherein said pipe section is made from a material having low magnetic permeability and wherein at least one of the antennas is provided magnetic shield having high magnetic permeability, the corresponding antenna being positioned between the pipe wall and the magnetic shield and the magnetic shield extending along the length of the antenna.
    Type: Application
    Filed: May 12, 2011
    Publication date: February 28, 2013
    Inventors: Christophe Tarayre, André Johann Blindheim, Øyvind Wetteland