Patents Assigned to Perigon DA
  • Liquid separation device
    Patent number: 7124816
    Abstract: A device for keeping liquids separate in a pipe, especially for use in a petroleum well, where the device comprises a diaphragm, which in its operative position and through use of pretensioned slats is stretched across the cross section of the pipe, and where each of the two end portions of the slats is connected to a boss, respectively, in a manner such that each the slats forms an outward bow relative to the common axis of the bosses, when in the neutral position.
    Type: Grant
    Filed: March 25, 2002
    Date of Patent: October 24, 2006
    Assignee: Perigon DA
    Inventor: Per Arild Årebråt