Patents Assigned to Peace Recovery Systems Ltd.
  • Explosive composition comprising waste oil, ammonium nitrate and lignite
    Patent number: 5397405
    Abstract: An explosive composition for mining operations has been produced using waste oil, lignite and ammonium nitrate in selected ranges of concentrations.
    Type: Grant
    Filed: April 1, 1993
    Date of Patent: March 14, 1995
    Assignee: Peace Recovery Systems Ltd.
    Inventors: Sydney O. Smith, Louis C. D. Kerpan