Patents by Inventor Torgeir Sletvold

Torgeir Sletvold 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).

  • Publication number: 20240060593
    Abstract: Described is a method for manufacturing coated pipe sections having a hollow conduit or an electrical cable within the coating. Also described are such pipe sections. The hollow conduit may be used to place sensors, fiber optics, or heating cable within the coating.
    Type: Application
    Filed: October 6, 2023
    Publication date: February 22, 2024
    Inventors: Eileen WAN, Tor Fredrik BREDELI, Suresh CHOUDHARY, Jan Peder HEGDAL, Per Ove SINGSTAD, Torgeir SLETVOLD
  • Publication number: 20220268375
    Abstract: A multi layer pipe coating for steel pipe, and a method of production of same. The multi layer coated steel pipe has a first layer of coating, which is an anti-corrosion coating, a second layer of coating, comprising a thermoplastic selected from the group consisting of polyphenylene sulfide, polypropylene, and polystyrene, an epoxy intermediate layer between the second layer of coating and a third layer of coating, and a third layer of coating, which comprises a thermoplastic selected from the group consisting of polyphenylene sulfide, polypropylene and polystyrene. The second layer of coating and the third layer of coating comprise different thermoplastics.
    Type: Application
    Filed: July 7, 2020
    Publication date: August 25, 2022
    Inventors: Eileen Wan, CATHERINE LAM, TOR FREDRIK BREDELI, TORGEIR SLETVOLD, GUIDO RIDOLFI
  • Publication number: 20220243858
    Abstract: Described is a method for manufacturing coated pipe sections having a hollow conduit or an electrical cable within the coating. Also described are such pipe sections. The hollow conduit may be used to place sensors, fiber optics, or heating cable within the coating.
    Type: Application
    Filed: June 25, 2020
    Publication date: August 4, 2022
    Inventors: EILEEN WAN, TOR FREDRIK BREDELI, TORGEIR SLETVOLD, JAN PEDER HEGDAL, SURESH CHOUDHARY, PER OVE SINGSTAD, GUIDO RIDOLFI
  • Patent number: 9810366
    Abstract: A method for forming a high temperature field joint between two insulated pipe sections, and an insulated conduit having a low temperature field joint. The conduit comprises a steel pipe with a corrosion protection coating and a pipe insulation layer comprising a polymer composition having thermal conductivity of less than about 0.40 W/mk, and/or heat resistance to continuous operating temperatures from about 150° C. to above about 205° C. After a circumferential weld joint is formed between the two pipes, a first field joint insulation layer is applied over the joint area, the first field joint insulation layer comprises a polymer composition having heat resistance to continuous operating temperatures from about 150° C. to above about 205° C.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: November 7, 2017
    Assignee: SHAWCOR LTD.
    Inventors: Jan Peder Hegdal, Torgeir Sletvold, Eileen Wan, Suresh Choudhary
  • Patent number: 9791091
    Abstract: A method for forming a high temperature field joint between two insulated pipe sections, and an insulated conduit having a low temperature field joint. The conduit comprises a steel pipe with a corrosion protection coating and a pipe insulation layer comprising a polymer composition having thermal conductivity of less than about 0.40 W/mk, and/or heat resistance to continuous operating temperatures from about 150° C. to above about 205° C. After a circumferential weld joint is formed between the two pipes, a first field joint insulation layer is applied over the joint area, the first field joint insulation layer comprises a polymer composition having heat resistance to continuous operating temperatures from about 150° C. to above about 205° C.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: October 17, 2017
    Assignees: AGC CHEMICALS AMERICAS, INC., SHAWCOR LTD.
    Inventors: Masahide Yodogawa, Suresh Choudhary, Jan Peder Hegdal, Torgeir Sletvold, Eileen Wan
  • Publication number: 20150041017
    Abstract: A method for forming a high temperature field joint between two insulated pipe sections, and an insulated conduit having a low temperature field joint. The conduit comprises a steel pipe with a corrosion protection coating and a pipe insulation layer comprising a polymer composition having thermal conductivity of less than about 0.40 W/mk, and/or heat resistance to continuous operating temperatures from about 150° C. to above about 205° C. After a circumferential weld joint is formed between the two pipes, a first field joint insulation layer is applied over the joint area, the first field joint insulation layer comprises a polymer composition having heat resistance to continuous operating temperatures from about 150° C. to above about 205° C.
    Type: Application
    Filed: August 8, 2014
    Publication date: February 12, 2015
    Inventors: Jan Peder Hegdal, Torgeir Sletvold, Eileen Wan, Suresh Choudhary