Patents by Inventor Earl M. Waterman

Earl M. Waterman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process conditions for operation of ignition catalyst for natural gas combustion
    Patent number: 5214912
    Abstract: A method for operating a palladium oxide containing catalytic combustor useful, e.g., for powering a gas turbine, wherein the palladium oxide is supported on a metal oxide such as alumina, ceria, titania or tantalum oxide. The method involves maintaining control of the temperature within the combustor in such a manner as to insure the presence of palladium oxide. By maintaining the temperature below about 800.degree. C. decomposition of palladium oxide into metallic palladium is avoided and high catalytic activity is retained. Regeneration of catalyst following inactivation resulting from an over-temperature is accomplished by using a heat soak in a temperature range which varies depending on the metal oxide used to support the palladium oxide.
    Type: Grant
    Filed: October 16, 1991
    Date of Patent: June 1, 1993
    Assignee: Engelhard Corporation
    Inventors: Robert J. Farrauto, Teresa Kennelly, Earl M. Waterman, Melvin C. Hobson, Jr.
  • Process conditions for operation of ignition catalyst for natural gas combustion
    Patent number: 4893465
    Abstract: A method for operating a palladium oxide containing catalytic combustor useful, e.g., for powering a gas turbine. The method involves maintaining control of the temperature within the combustor in such a manner as to insure the presence of palladium oxide. By maintaining the temperature below about 800.degree. C. decomposition of palladium oxide into metallic palladium is avoided and high catalytic activity is retained. Regeneration of catalyst following inactivation resulting from an over-temperature is accomplished by using a heat soak in the temperature range of about 530.degree. C.-650.degree. C.
    Type: Grant
    Filed: August 22, 1988
    Date of Patent: January 16, 1990
    Assignee: Engelhard Corporation
    Inventors: Robert J. Farrauto, Teresa Kennelly, Earl M. Waterman