Patents by Inventor Knut Magne Furuheim

Knut Magne Furuheim 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).

  • Lead-free water barrier
    Publication number: 20220189659
    Abstract: A lead-free water barrier suited for dynamical submarine high voltage power cables has a water barrier including a laminate structure. The laminate structure has a metal foil having a lower and an upper surface area. A first layer of a thermoplastic semiconducting polymer is laid onto the first adhesive layer, and a second layer of a thermoplastic semiconducting polymer is laid onto the second adhesive layer. The laminate structure is thermally joined by a heat treatment.
    Type: Application
    Filed: December 10, 2021
    Publication date: June 16, 2022
    Inventors: Massimiliano MAURI, Simon JORGENSEN, Knut Magne FURUHEIM, Bettina GRORUD, Markus JARVID, Audun JOHANSON
  • Field grading layer
    Patent number: 9666334
    Abstract: A method is provided for applying a field grading layer to a power cable includes preparing a polymer composition having a polymer matrix, at least one conductive filler different from a non-linear conductive organic filler, and at least one crosslinking agent. The method includes extruding the polymer composition into a crosslinkable field grading tape and winding the crosslinkable field grading tape onto a section of power cable in need of field grading. The crosslinkable tape is crosslinked to obtain a field grading layer.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: May 30, 2017
    Assignee: NEXANS
    Inventors: Staffan Josefsson, Bjorn Sonerud, Knut Magne Furuheim
  • Electric power cable for medium or high voltage
    Patent number: 9281102
    Abstract: An electric power cable for medium or high voltage without lead sheath is provided having at least one diffusion barrier (7) based on a metallized layer or a layer of polymer (HDPE). In addition there is a polymer (PUR) layer (6) for absorbing limited amounts of water that might after all pass through the diffusion barrier layer.
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: March 8, 2016
    Assignee: NEXANS
    Inventors: Liv Molvig-Lundegaard, Georg Balog, Knut Magne Furuheim
  • FIELD GRADING LAYER
    Publication number: 20150380128
    Abstract: A method is provided for applying a field grading layer to a power cable includes preparing a polymer composition having a polymer matrix, at least one conductive filler different from a non-linear conductive organic filler, and at least one crosslinking agent. The method includes extruding the polymer composition into a crosslinkable field grading tape and winding the crosslinkable field grading tape onto a section of power cable in need of field grading. The crosslinkable tape is crosslinked to obtain a field grading layer.
    Type: Application
    Filed: June 26, 2015
    Publication date: December 31, 2015
    Inventors: Staffan Josefsson, Bjorn Sonerud, Knut Magne Furuheim
  • Power cable with a water barrier laminate
    Patent number: 9029705
    Abstract: A power cable having a water barrier laminate where the water barrier laminate has foil made of metal (1) laminated between at least two layers of non insulating polymer foils (2a, 2b) constituting a final laminate (3) that is non insulating.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: May 12, 2015
    Assignee: Nexans
    Inventors: Knut Magne Furuheim, Sverre Hvidsten
  • FIELD GRADING LAYER
    Publication number: 20140182886
    Abstract: Method of applying a field grading layer to a power cable is disclosed. The method comprises compounding a polymer composition comprising a polymer matrix material, at least one non-linear conductive organic filler, and at least one crosslinking agent, extruding the compounded polymer composition into a crosslinkable field grading tape, winding the crosslinkable field grading tape onto a section of power cable in need of field grading curing and crosslinking the crosslinkable tape to obtain a field grading layer.
    Type: Application
    Filed: December 18, 2013
    Publication date: July 3, 2014
    Inventors: Bjorn Sonerud, Knut Magne Furuheim
  • FIELD GRADING MATERIAL
    Publication number: 20140065420
    Abstract: A field grading material (1) includes a polymeric matrix and at least one electrically conducting filler, where the electrically conducting filler is polyaniline.
    Type: Application
    Filed: February 25, 2013
    Publication date: March 6, 2014
    Inventors: Bjourn Sonerud, Jerome Matallana, Arnaud Allais, Knut Magne Furuheim, Ludovic Boyer, Xavier Festaz
  • ELECTRIC POWER CABLE FOR MEDIUM OR HIGH VOLTAGE
    Publication number: 20120255760
    Abstract: Electric power cable for medium or high voltage without lead sheath. The cable comprises at least one diffusion barrier (7) based one a metallized layer or a layer of polymer (HDPE). In addition there is a polymer (PUR) layer (6) for absorbing limited amounts of water that might after all pass through the diffusion barrier layer.
    Type: Application
    Filed: November 3, 2010
    Publication date: October 11, 2012
    Inventors: Liv Molvig-Lundegaard, Georg Balog, Knut Magne Furuheim
  • Power cable with a water barrier laminate
    Publication number: 20120080213
    Abstract: A power cable having a water barrier laminate where the water barrier laminate has foil made of metal (1) laminated between at least two layers of non insulating polymer foils (2a, 2b) constituting a final laminate (3) that is non insulating.
    Type: Application
    Filed: September 14, 2011
    Publication date: April 5, 2012
    Inventors: Knut Magne Furuheim, Sverre Hvidsten