Patents Assigned to Asphalt Product Technologies, Inc.
  • Soil remediation apparatus and method for same
    Patent number: 5272833
    Abstract: An apparatus for remediating soil contaminated with combustible pollutants comprising means for initially heating the contaminated soil to a temperature sufficient to vaporize contaminants present therein, means for feeding the contaminated soil to the initial heating means, means for reheating gases created by vaporizing the contaminants, means for introducing the gases to the reheating means, means for cooling the gases, means for removing particulate matter from the gases, and means for exhausting the gases to the atmosphere.
    Type: Grant
    Filed: August 28, 1990
    Date of Patent: December 28, 1993
    Assignee: Asphalt Product Technologies, Inc.
    Inventors: Frederic W. Prill, Robert E. Farnham