Patents by Inventor Ernest J. Workman

Ernest J. Workman 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).

  • Fluidizing fine powder
    Patent number: 4379186
    Abstract: Powder which is too fine to be fluidized on its own is fluidized admixed with a sufficient quantity of coarser powder of a particle size that can be fluidized on its own. The process may be used for coating fine powders with valve-metal for the manufacture of capacitor electrodes.
    Type: Grant
    Filed: March 10, 1981
    Date of Patent: April 5, 1983
    Assignee: ITT Industries, Inc.
    Inventors: Eric L. Bush, Ernest J. Workman
  • Coating powdered material
    Patent number: 4338354
    Abstract: A process for coating a particulate insulating material, e.g. alumina, with a uniform layer of a valve metal. The particles are exposed to a gaseous nitrogen compound, or to nitrogen gas together with hydrogen and a volatile halide of the valve metal. It is thought that nitrogen provides nucleation of the surface for subsequent metal deposition. The coated powder may be used in the fabrication of electrolytic capacitor anodes.
    Type: Grant
    Filed: April 28, 1980
    Date of Patent: July 6, 1982
    Assignee: International Standard Electric Corporation
    Inventors: Eric L. Bush, Ernest J. Workman