Patents Assigned to Seatek Limited
  • Ocean platform
    Patent number: 4829928
    Abstract: An ocean platform has a negatively buoyant pontoon suspended from the balance of the platform to increase the heave resonant period to at least 25 seconds. Tendons suspend the pontoon to a depth where dynamic wave forces do not materially act directly on it in seas of normally occurring periods of up to about 15 seconds but do in seas of periods above about 15 seconds. Columns and an upper pontoon provide buoyancy for the platform.
    Type: Grant
    Filed: October 20, 1987
    Date of Patent: May 16, 1989
    Assignee: Seatek Limited
    Inventor: Gunnar Bergman