Patents Assigned to Geco AS
  • Patent number: 6607168
    Abstract: The bearing structure such as a wing is fitted with toothed platelets (16) at its free edges to break tip vortex produced at these places by fluid pressure distribution. Vortex dissipation is accelerated, vortex remanence is considerably reduced. In the case of a deflector for a line of hydrophones (30) towed by a ship (31) to carry out seismic tests at sea, the noise disturbing the hydrophones (30) is reduced. In the case of marine applications, risks of cavitation are much reduced, particularly with regard to stabilizers or propellers. In the case of aeronautics applications, vortex remanence on take-off and on landing of planes is reduced.
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: August 19, 2003
    Assignees: Geco AS, Francais, Etat
    Inventors: Stéphane Cordier, Laurence Briancon-Marjollet
  • Patent number: 5329071
    Abstract: A method and device for operating special equipment provided in seismic cables, i.e., gun cables and streamers (2, 3) during seismic surveys at sea, whereby energy is supplied through wires (4), or wireless transmitting/receiving devices, to the equipment (B, C, D) in the cables, without this energy supply affecting the seismic surveys. In order to achieve this, low output energy (A) is supplied through wires (4, 17) to electrical units, such as a transformer (5) in a sealed chamber (9) used to charge batteries (6) in a separate sealed chamber (10) so that they can emit for brief periods sufficiently high outputs of energy in order to perform the necessary operation of the equipment such as motors (7) and fluid pumps ( 14 ) . Control devices ( 13 ) are provided where required for control of the operation.
    Type: Grant
    Filed: March 17, 1993
    Date of Patent: July 12, 1994
    Assignee: Geco AS
    Inventors: Odd O. Vatne, Hans Cappelen, Oyvind Sorbotten