Patents by Inventor Terence J. Clark

Terence J. Clark 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).

  • Method for passivating the inner surface by deposition of a ceramic coating of an apparatus subject to coking, apparatus prepared thereby, and method of utilizing apparatus prepared thereby
    Patent number: 5208069
    Abstract: In order to reduce the rate of coke formation during the industrial pyrolysis of hydrocarbons, the interior surface of the reactor tubes are coated with a thin layer of a ceramic material, said layer being deposited by thermal decomposition of a non-oxygen containing silicon organometallic precursor in the vapor phase, in an inert or reducing gas atmosphere in order to minimize the formation of oxide ceramics.
    Type: Grant
    Filed: October 28, 1991
    Date of Patent: May 4, 1993
    Assignees: Istituto Guido Donegani S.p.A., Enichem S.p.A.
    Inventors: Terence J. Clark, Michael J. Hanagan, Richard W. Cruse, Veronika A. Szalai, Stephen J. Rohman, Robert M. Mininni
  • Process for providing a protective oxide coating on ceramic fibers
    Patent number: 4746480
    Abstract: Thermally stable ceramic fibers are provided by pyrolysis of organosilicon preceramic polymeric fibers to ceramic form and contacting the ceramic fibers with an oxygen-containing gas so as to oxidize the surface of the fibers and form an in-situ oxide coating.
    Type: Grant
    Filed: August 11, 1986
    Date of Patent: May 24, 1988
    Assignee: Hoechst Celanese Corporation
    Inventor: Terence J. Clark
  • Fabrication of SiC - AlN alloys
    Patent number: 4687657
    Abstract: An aluminum nitride ceramic is formed by pyrolyzing a poly-N-alkyliminoalane. A ceramic comprising a solid solution of silicon carbide and aluminum nitride is also formed by mixing a preceramic organosilicon polymer with a polyalkyliminoalane and pyrolyzing the mixed polymers composition to ceramic form.
    Type: Grant
    Filed: June 9, 1986
    Date of Patent: August 18, 1987
    Assignee: Celanese Corporation
    Inventors: Terence J. Clark, Robert E. Johnson
  • Fiberizable glass
    Patent number: 4303446
    Abstract: A lead-free, fiberizable glass composition. The glass is characterized by a relatively low hardness rating and is accordingly useful in preparing friction surfaces. Its composition includes, on a weight basis, from about 45% to about 75% of silicon dioxide, from about 15% to about 30% of potassium oxide and from about 2% to about 10% of magnesium oxide.
    Type: Grant
    Filed: September 8, 1980
    Date of Patent: December 1, 1981
    Assignee: Borg-Warner Corporation
    Inventors: William C. LaCourse, Terence J. Clark