Patents by Inventor Sarah Y. Hughes

Sarah Y. Hughes 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).

  • Coating powder with valve-metal
    Patent number: 4353938
    Abstract: Powder is coated with valve-metal by rotating it in a drum 15 so that it is presented to valve-metal vapor derived by evaporation of a source of valve-metal. In the case of coating with aluminum, the vapor may be produced by directing aluminum wire 10 on to a heater 11, and oxygen or air is admitted to control agglomerate formation. Aluminum and tantalum coating are both described using electron beam evaporators.
    Type: Grant
    Filed: July 28, 1980
    Date of Patent: October 12, 1982
    Assignee: International Standard Electric Corporation
    Inventors: Henley F. Sterling, Eric L. Bush, Miles P. Drake, Denis W. J. Hazelden, Sarah Y. Hughes
  • Apparatus for metal coating of powders
    Patent number: 4242982
    Abstract: One shot coating of powdered material with a metal film is achieved by allowing the material to fall through a vertical refractory cylinder, the inside of which is covered with the metal. The process takes place in a vacuum chamber and the cylinder is heated to evaporate the metal onto the falling material as it passes through the cylinder.
    Type: Grant
    Filed: May 16, 1979
    Date of Patent: January 6, 1981
    Assignee: International Standard Electric Corporation
    Inventors: Miles P. Drake, Sarah Y. Hughes