Patents by Inventor Audun JOHANSON

Audun JOHANSON 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: 12347589
    Abstract: A dynamic power cable or power cables for submarine applications has at least one extruded fibre reinforced thermoplastic composite core sheath arranged radially around a water barrier sheath.
    Type: Grant
    Filed: April 29, 2023
    Date of Patent: July 1, 2025
    Assignee: NEXANS
    Inventors: Karl Magnus Bengtsson, Audun Johanson, Anton Akulichev
  • Publication number: 20240420868
    Abstract: A method of manufacture for a subsea power cable (100), includes the step of providing at least one cable core (125) having an electrical conductor (110) and an electrically insulating system (120) arranged radially outside of the electrical conductor (110). The method includes adding a liquid material having a polymer, on top of the at least one cable core (125), forming a buffer layer (130); and applying a water barrier (140) radially outside of the buffer layer (130).
    Type: Application
    Filed: June 13, 2024
    Publication date: December 19, 2024
    Inventors: Audun JOHANSON, Massimiliano MAURI
  • Patent number: 12136503
    Abstract: A water barrier for encapsulating a cable core has a layer of metal foil having a thickness of t1, and a single layer of a polyethylene-based polymer having a thickness of t2. The ratio t2: t1 is at least seven, and the single layer of a polyethylene-based polymer has been deposited onto the metal foil by extrusion at an extrusion temperature of at least 150° C., with the metal foil preheated to a temperature of at least 130° C.
    Type: Grant
    Filed: March 22, 2022
    Date of Patent: November 5, 2024
    Assignee: NEXANS
    Inventors: Simon Jorgensen, Audun Johanson, Massimiliano Mauri
  • Patent number: 12068086
    Abstract: An arrangement for welded conductors for power transmission cables includes conductors welded by a high conductive welding material. A method for production of such welded conductors and power transmission cables including the welded conductors includes joining the conductor elements by welding.
    Type: Grant
    Filed: May 10, 2022
    Date of Patent: August 20, 2024
    Assignee: NEXANS
    Inventors: Audun Johanson, Jonas Larsson
  • Publication number: 20240233980
    Abstract: A water barrier (130) for a power cable has a composite layer having a first component, where the first component is a polymer, and at least a second component. The second component is impermeable to water molecules where the second component is selected from fibres having an aspect ratio of 10 or higher and an average length of 1 mm or less, plate-like particles having an aspect ratio of 10 or higher, fibres having an average length of more than 1 mm, fabrics or any combination thereof. The second component is dispersed into the first component, a power cable (100).
    Type: Application
    Filed: December 18, 2023
    Publication date: July 11, 2024
    Inventors: Anton AKULICHEV, Massimiliano MAURI, Audun JOHANSON
  • Publication number: 20240233979
    Abstract: A joint (300) for joining a first electric cable (100) and a second electric cable (200), each cable (100; 200) having an electric conductor, an insulation system surrounding the electric conductor, and a water barrier (130;230) surrounding the insulation system. The insulation system has an inner semiconducting layer, an insulating layer and an outer semiconducting layer, where the joint has an electrical conductor joint electrically connecting end sections of the two electrical conductors.
    Type: Application
    Filed: December 14, 2023
    Publication date: July 11, 2024
    Inventors: Massimiliano MAURI, Sigurd SCHAWLANN, Audun JOHANSON, Karl Magnus BENGTSSON
  • Publication number: 20240203620
    Abstract: A water barrier for encapsulating a cable core has an inner layer of lead-free metal foil having an elastic modulus lower than 210 GPa, an intermediate layer of adhesive material, and an outer layer of a polyethylene-based semi-conducting polymer having an elastic modulus higher than 0.5 GPa. A power cable is providing having such a water barrier.
    Type: Application
    Filed: April 12, 2022
    Publication date: June 20, 2024
    Inventors: Audun JOHANSON, Simon JORGENSEN, Massimiliano MAURI
  • Publication number: 20240116128
    Abstract: A method of joining tubes with friction welding includes the steps of aligning end walls of tubes to be welded, introducing an intermediate tube segment between the tubes, and bringing the tube end walls together against opposing end walls of the tube segment to put the end walls under axial compressive stress at a friction ramp-up pressure. The method further includes rotating the intermediate tube segment about a tube segment longitudinal axis in at least one direction, increasing the axial compressive friction stress to a forging pressure in order to heat the end parts of the tube and the intermediate tube segment, and increasing the axial compressive friction stress to a forging pressure, thus joining the tubes and the tube segment. The tube segments have a tube wall made of a material resistant to hydrogen embrittlement.
    Type: Application
    Filed: July 11, 2023
    Publication date: April 11, 2024
    Inventors: Audun JOHANSON, Simon JORGENSEN, Robin SANGAR, Jonas LARSSON
  • Publication number: 20240120131
    Abstract: A metallic water barrier sheath for power cables for submarine or land applications is provided where the water barrier sheath comprises a metallic layer made of tin or a tin alloy.
    Type: Application
    Filed: April 7, 2023
    Publication date: April 11, 2024
    Inventors: Audun JOHANSON, Sigurd SCHAWLANN, Massimiliano MAURI, Simon JORGENSEN
  • Patent number: 11848118
    Abstract: An aluminium based conductor made of an alloy has at least 98 wt % aluminium, from 0.25 to 0.45 wt % iron, from 0.07 to 0.25 wt % copper and from 0.001 to 0.10 wt % boron, having high strength and conductivity. The present arrangement also includes a method for obtaining such conductors.
    Type: Grant
    Filed: February 1, 2022
    Date of Patent: December 19, 2023
    Assignee: NEXANS
    Inventor: Audun Johanson
  • Publication number: 20230386702
    Abstract: A dynamic power cable or cables for submarine applications, wherein the dynamic power cable has at least one fibre reinforced thermoplastic composite sheath radially around a water barrier sheath providing reduced buckling of the water barrier sheath. The at least one fibre reinforced thermoplastic composite sheath has wound fibres embedded in a thermoplastic polymer.
    Type: Application
    Filed: April 29, 2023
    Publication date: November 30, 2023
    Inventors: Audun JOHANSON, Karl Magnus BENGTSSON, Anton AKULICHEV
  • Publication number: 20230378740
    Abstract: Power cables are provided having a joint with a metallic water barrier and, in particular, metallic water barrier materials for cable joints for use in high voltage cables for both land and submarine applications.
    Type: Application
    Filed: April 10, 2023
    Publication date: November 23, 2023
    Inventors: Audun JOHANSON, Sigurd SCHAWLANN, Massimiliano MAURI, Simon JORGENSEN
  • Publication number: 20230352212
    Abstract: A dynamic power cable or power cables for submarine applications, wherein the dynamic power cable has at least one extruded fibre reinforced thermoplastic composite core sheath arranged radially around a water barrier sheath, providing reduced buckling of the water barrier sheath.
    Type: Application
    Filed: April 29, 2023
    Publication date: November 2, 2023
    Inventors: Karl Magnus Bengtsson, Audun Johanson, Anton Akulichev
  • Publication number: 20230335310
    Abstract: A metallic water barrier sheath for high voltage dynamic power cables for submarine applications is provided, where the water barrier sheath is made of titanium or a titanium alloy.
    Type: Application
    Filed: March 8, 2023
    Publication date: October 19, 2023
    Inventor: Audun JOHANSON
  • Patent number: 11791065
    Abstract: A power cable has a cable core with at least one conductor with an insulating system and a water barrier surrounding the cable core. The water barrier has a helically wound strength bearing layer interconnected by a low melting point material.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: October 17, 2023
    Assignee: NEXANS
    Inventors: Audun Johanson, Robin Sangar
  • Patent number: 11728072
    Abstract: A cable assembly (100) having a first cable (20) having a first conductor (22), a second cable (40) having a second conductor (42) and an electrically conducting joining element (60). The joining element (60) has a first opening (61) and a second opening (63). The cable assembly (100) comprises a number of canted coil springs (70). A terminal portion of the first conductor (22) is secured to the first opening (61) by means of a first canted coil spring (70). A terminal portion of the second conductor (42) is secured to the second opening (63) by means of a second canted coiled spring (70).
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: August 15, 2023
    Assignee: NEXANS
    Inventors: Robin Sangar, Per Arne Osborg, Audun Johanson
  • Publication number: 20230178268
    Abstract: A high voltage alternative current cable is provided having mechanically reinforced electric conductor, by having a reinforcement member at the centre of the conductors of the cable, where the reinforcement member is made of one or more low or non-magnetic steel wires, one or more wires of CuNiSi precipitation alloy, or one or more aluminium wires made of an EN AW-1xxx, EN AW-2xxx, EN AW-5xxx, AW-6xxx, EN AW-7xxx, or EN AW-8xxx alloy, according to the European aluminium standard.
    Type: Application
    Filed: October 5, 2022
    Publication date: June 8, 2023
    Inventors: Jonas LARSSON, Audun JOHANSON, Martin HOVDE
  • Patent number: 11631505
    Abstract: A water blocking layer/sheathing for subsea power cables made from a CuNiSi-alloy.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: April 18, 2023
    Assignee: NEXANS
    Inventor: Audun Johanson
  • Patent number: 11548045
    Abstract: A method for manufacturing a sheathing of a cable and a sheathing for a cable is provided where the method includes forming the cable sheathing by extrusion and the sheathing is made of a Pb—Ca—Sn alloy having a composition having from 0.03 to 0.05 weight % Ca and from 0.4 to 0.8 weight % Sn.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: January 10, 2023
    Assignee: NEXANS
    Inventors: Audun Johanson, Arild Larsen
  • Publication number: 20220359099
    Abstract: An arrangement for welded conductors for power transmission cables is provided, with conductors welded by a high conductive welding material. A method is also provided for production of welded conductors and power transmission cables including the welded conductors.
    Type: Application
    Filed: May 10, 2022
    Publication date: November 10, 2022
    Inventors: Audun JOHANSON, Jonas LARSSON