Patents by Inventor Øyvind Rokne

Øyvind Rokne 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).

  • Apparatus and method for preventing the penetration of seawater into a compressor module during lowering to or retrieval from the seabed
    Patent number: 8267676
    Abstract: An apparatus for preventing seawater from penetrating into a compressor module during lowering to or retrieval from a compression plant on the seabed, with optional discharge of residual production fluids, as for instance hydrocarbons, from the compressor module prior to retrieval, wherein the compressor module comprises an electric motor (1) and a compressor (2) which are respectively connected via at least one shaft (8) and are arranged in a common pressure shell (3), an inlet pipe (5) and an outlet pipe (6) to and from the compressor module which respectively are provided with an isolation valve (7, 7?).
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: September 18, 2012
    Assignee: Aker Subsea AS
    Inventors: Håkon Skofteland, Kjell Olav Stinessen, Audun Grynning, Øyvind Rokne