Patents Assigned to Signal Applied Technologies Inc.
  • Lead-tolerant catalyst system and method for treating exhaust gas containing lead compounds
    Patent number: 4702897
    Abstract: A lead-resistant exhaust gas oxidation catalytic composite is disclosed. The composite comprises a support material comprising a refractory inorganic oxide having deposited thereon a catalytic component selected from the Group consisting of platinum, palladium, iridium, rhodium and mixtures thereof and having dispersed thereover a protective coating of zirconia. Also disclosed is a method for effecting oxidation of noxious exhaust gases comprising hydrocarbons, carbon monoxide and lead compounds. Additionally, a method for oxidizing an exhaust gas from an internal combustion engine operating upon leaded fuel is also disclosed.
    Type: Grant
    Filed: September 30, 1985
    Date of Patent: October 27, 1987
    Assignee: Signal Applied Technologies, Inc.
    Inventor: Isik Onal
  • Lead-tolerant catalyst system for treating exhaust gas containing lead compounds
    Patent number: 4572904
    Abstract: A lead-resistant exhaust gas oxidation catalytic composite is disclosed. The composite comprises a support material comprising a refractory inorganic oxide having deposited thereon a catalytic component selected from the Group consisting of platinum, palladium, iridium, rhodium and mixtures thereof and having dispersed thereover a protective coating of zirconia. Also disclosed is a method for effecting oxidation of noxious exhaust gases comprising hydrocarbons, carbon monoxide and lead compounds. Additionally, a method for oxidizing an exhaust gas from an internal combustion engine operating upon leaded fuel is also disclosed.
    Type: Grant
    Filed: October 19, 1984
    Date of Patent: February 25, 1986
    Assignee: Signal Applied Technologies Inc.
    Inventor: Isik Onal