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Subsurface soil injection method

  • US 7,748,331 B2
  • Filed: 06/27/2007
  • Issued: 07/06/2010
  • Est. Priority Date: 02/28/2001
  • Status: Expired due to Fees
First Claim
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1. A method for applying a discrete, predetermined amount of a material into soil at each of a plurality of predetermined points in the soil, comprising:

  • pressurizing the material in a storage tank;

    providing an electrical signal to a switch, wherein responsive to the electrical signal the switch releases the predetermined amount of the material from the storage tank; and

    injecting the predetermined amount of the material into the soil using a shank positioned at one of the plurality of predetermined points,wherein the switch is maintained in a closed state when the shank is positioned between the predetermined points in the soil, andwherein the material diffusing into the soil from each of the plurality of predetermined points provides a desired diffusion pattern of the material in the soil.

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