Patents by Inventor Michael G. Devour

Michael G. Devour 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).

  • Thin inorganic fibers
    Patent number: 5424126
    Abstract: In a preferred embodiment, an inorganic fiber having a diameter between about 1 and 10 microns is formed by chemical vapor deposition of inorganic material, such as boron, onto a carbon filament having a diameter less than about 50 nanometers.
    Type: Grant
    Filed: December 19, 1985
    Date of Patent: June 13, 1995
    Assignee: General Motors Corporation
    Inventors: Gary G. Tibbetts, Charles P. Beetz, Michael G. Devour
  • Regulation of pyrolysis methane concentration in the manufacture of graphite fibers
    Patent number: 4565684
    Abstract: In a preferred embodiment, graphite fibers are grown on a suitably nucleated ceramic surface by passing a methane gas stream over the surface at an elevated temperature. Initially, the methane concentration in the gas stream is adjusted to between 5 and 15 volume percent to form microscopic carbon filaments. Thereafter, the methane concentration is increased to above 25 volume percent to thicken the filaments into fibers.
    Type: Grant
    Filed: December 21, 1984
    Date of Patent: January 21, 1986
    Assignee: General Motors Corporation
    Inventors: Gary G. Tibbetts, Michael G. Devour