Hybrid wire winder and seismic cables
AssigneeDYK Incorporated
InventorsMichael Crom, Frank Lucido, Sean Crom
Life of this patent
Estimating the term…
Abstract
A winder has an extra section. The extra section includes a gripper; and a brake, for controlling a wire force without having to change a pitch diameter of the gripper or a sprocket. The wire winder, is controlled by, as a tower travels around a tank, generating a square wave from the wheel drive; feeding said square wave to a counter and counting the square waves; comparing the number of counts with a number selected by an operator for a spacing location; powering a proportional hydraulic valve, and thereby pressurizing fluid into an elevator hydraulic motor; thereby rotating the motor until the spacing counter has counted the pre-selected number; and shutting the hydraulic flow. Epoxy is used to protect seismic cables from liquids.
Claims15
A method of controlling a wire winder, said method including:
- as a tower travels around a tank, generating a square wave from a wheel drive;
- feeding said square wave to a counter and counting a number of said square waves;
- comparing the number of counts with a number selected by an operator for a spacing location;
- powering a proportional hydraulic valve, and thereby pressurizing fluid into an elevator hydraulic motor;
- thereby rotating the motor until the spacing counter has counted the pre-selected number;
- and
- shutting the hydraulic flow.
A winder for tensioning a strand of material being wrapped around a tank in order to pre-stress the tank, the winder being connected to a tower traveling around the tank, the winder comprising:
- a first rotating gripper engaging the strand of material at a first, constant radius;
- a second rotating gripper downstream of the first gripper and engaging the strand of material, the second gripper using a differential winder to apply a tension to the strand which leaves the second gripper;
- a brake between the first and second gripper;
- a brake on the first gripper to vary the rotation of the first gripper and vary the tension in the strand of material between the first and second grippers.
Dependencies are inferred from the claim text.