Patents by Inventor Sigbjørn Øvland

Sigbjørn Øvland 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: 9057244
    Abstract: A method for reversible temperature sensitive control of the flow of fluid in oil and/or gas production, involves a control device or an autonomous valve operating by the Bernoulli principle and includes a moveable disk or body provided within a housing for opening and closing the valve, involving use of the Curie-effect in order to position the body in a preferred position within the housing at a temperature below a certain, preferred transition or Curie temperature. An apparatus for reversible temperature sensitive control of the flow of fluid in oil and/or gas production including a control device or an autonomous valve operating by the Bernoulli principle and including a moveable disk or body provided within a housing for opening and closing the valve, the body and housing including a ferromagnetic material having a certain, preferred Curie temperature, the temperature being selected in order to position the body in a preferred position in the housing during installation or operation.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: June 16, 2015
    Assignee: STATOIL PETROLEUM ASA
    Inventor: Sigbjørn Øvland
  • Publication number: 20110290326
    Abstract: A method for reversible temperature sensitive control of the flow of fluid in oil and/or gas production, involves a control device or an autonomous valve operating by the Bernoulli principle and includes a moveable disk or body provided within a housing for opening and closing said valve, involving use of the Curie-effect in order to position said body in a preferred position within said housing at a temperature below a certain, preferred transition or Curie temperature. An apparatus for reversible temperature sensitive control of the flow of fluid in oil and/or gas production including a control device or an autonomous valve operating by the Bernoulli principle and including a moveable disk or body provided within a housing for opening and closing said valve, the body and housing including a ferromagnetic material having a certain, preferred Curie temperature, the temperature being selected in order to position the body in a preferred position in the housing during installation or operation.
    Type: Application
    Filed: November 6, 2009
    Publication date: December 1, 2011
    Applicant: STATOIL PETROLEUM ASA
    Inventor: Sigbjørn Øvland