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Selective position control system and method

  • US 7,543,655 B2
  • Filed: 02/10/2004
  • Issued: 06/09/2009
  • Est. Priority Date: 02/10/2004
  • Status: Expired due to Fees
First Claim
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1. A manual electro-hydraulic selective depth control system for establishing a set position of a device above the ground as the device is moved across a surface, the selective depth control system comprising:

  • a. a toggle input device for specifying a plurality of position settings;

    b. a device position sensor for determining a measured device position; and

    c. a hydraulic position control system having a processor programmed with a ground zero position and a programmed maximum depth position for the device, wherein the hydraulic position control system maintains a set position corresponding to the measured device position within a specified position within a specified position window around the set position programmed relative to the ground-zero and maximum-depth position;

    d. wherein the toggle input device comprises;

    e. a working position that places the set position at one of said programmed positions;

    f. a shallow position that places the set position at a minimum deployed depth;

    g. a zero position that places the hydraulic position control system in a permanent de-energized mode.

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