GPS controlled multiple source material application

  • US 6,526,339 B1
  • Filed: 09/08/2000
  • Issued: 02/25/2003
  • Est. Priority Date: 04/02/1999
  • Status: Expired due to Term
First Claim
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1. A method for selectively applying a bulk material to a surface from a group of interconnected containers moving on said surface in a direction of movement and having a GPS antenna and respective controllable bulk material dispenser positioned one after another along said direction of movement, said method comprising the steps of:

  • (a) establishing a reference location of said containers and a respective distance from said reference location to each of said material dispensers;

    (b) detecting application geographic coordinates of sections of said surface onto which said material is to be applied;

    (c) storing the application coordinates in a computer which is interfaced to said material dispensers in such a manner as to control operation of said material dispensers to dispense said bulk material;

    (d) transporting said group of interconnected containers on said surface;

    (e) detecting current geographic coordinates of said GPS antenna during said transporting and said computer calculating respective geographic coordinates of each of said material dispensers from said reference location; and

    (f) upon the current geographic coordinates of at least one of said material dispensers correlating with said application coordinates, said computer controlling said at least one of said material dispensers to activate same to thereby apply said material to said surface.

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