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Implement control system for locating a surface interface and removing a layer of material

  • US 5,647,439 A
  • Filed: 12/14/1995
  • Issued: 07/15/1997
  • Est. Priority Date: 12/14/1995
  • Status: Expired due to Term
First Claim
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1. An apparatus coupled to a work machine to assist the work machine in removing a first layer of material from a second layer of material, the work machine having a frame, comprising:

  • a work implement having a cutting portion and being elevationally movably connected to the work machine, said cutting portion extending in a direction transverse to a longitudinal axis of the work machine;

    electromagnetic means, mounted to the work machine, for delivering electromagnetic radiation to penetrate the first layer of material, receiving a reflection of said delivered electromagnetic radiation from said second layer of material, and generating a responsive first signal;

    interface detecting means for receiving said first signal, determining the distance between said electromagnetic means and the second layer of material and responsively producing a distance signal; and

    implement control means for receiving said distance signal and responsively controlling the position of said work implement relative to said frame.

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