US Patent 10488541 Dynamically controlled foil systems and methods
Patent 10488541 was granted and assigned to ION Geophysical on November, 2019 by the United States Patent and Trademark Office.
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Foil systems for steering source and receiver arrangements for gathering seismic data are connected to buoys supporting seismic sources and receivers. Each foil system includes a positive buoyancy device, a pair of control cables, a plurality of foil sections, and an actuator. The pair of control cables may be attached to the buoyancy device and extend downward from the buoyancy device to a submerged end. The plurality of foil sections may be disposed along the control cables between the buoyancy device and the submerged end. The actuator may be configured to adjust attack angles of the foil sections by changing a tension in one or both of the control cables. Steering control is provided through a number of modes described by data distributed through a control system in communication with the foil systems.
US Patent 10488541 Dynamically controlled foil systems and methods
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