Patents Assigned to Univ. of Wyoming
  • Patent number: 5735948
    Abstract: A thermal process co-recycles tires with oils to produce gases, liquids and solids. The latter consisting of glass and steel fibers and a carbonous residue which are separately segregated and collected. By using selected additives gas formation and hydrogen sulfide contents are reduced, light product oil yields and quality are maximized and the level of chlorinated substances in the oils are reduced to trace amounts. The carbonous residue makes an excellent modifier for improving performance properties of bituminous binders and bituminous mixtures and for providing added benefits to properties of Portland concrete.
    Type: Grant
    Filed: July 17, 1995
    Date of Patent: April 7, 1998
    Assignees: Univ. of Wyoming, Amoco Corp.
    Inventors: Chang Yul Cha, Henry Plancher, Lawrence S. Kraus
  • Patent number: 5470384
    Abstract: A thermal process co-recycles tires with oils to produce gases, liquids and solids. The latter consisting of glass and steel fibers and a carbonous residue which are separately segregated and collected. By using selected additives gas formation and hydrogen sulfide contents are reduced, light product oil yields and quality are maximized and the level of chlorinated substances in the oils are reduced to trace amounts. The carbonous residue makes an excellent modifier for improving performance properties of bituminous binders and bituminous mixtures and for providing added benefits to properties of Portland concrete.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: November 28, 1995
    Assignees: Univ. of Wyoming, Amoco Corp.
    Inventors: Chang Y. Cha, Henry Plancher, Lawrence S. Kraus
  • Patent number: 5389691
    Abstract: A thermal process co-recycles tires with oils to produce gases, liquids and solids. The letter consisting of glass and steel fibers and a carbonous residue which are separately segregated and collected. By using selected additives gas formation and hydrogen sulfide contents are reduced, light product oil yields and quality are maximized and the level of chlorinated substances in the oils are reduced to trace amounts. The carbonous residue makes an excellent modifier for improving performance properties of bituminous binders and bituminous mixtures and for providing added benefits to properties of Portland concrete.
    Type: Grant
    Filed: September 7, 1993
    Date of Patent: February 14, 1995
    Assignees: Univ. of Wyoming, Amoco Corp.
    Inventors: Chang Y. Cha, Henry Plancher, Lawrence S. Kraus