Patents by Inventor William A. Boy

William A. Boy 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).

  • Solid flight conveying screw for furnace
    Patent number: 5863197
    Abstract: A fluid cooled conveying screw adapted for rotary hearth furnaces. A plurality of solid alternating single and double flights are affixed to an outer barrel. The single flights are at least partially cladded to withstand the rigors of the furnace. The double flights extend partially down the barrel.
    Type: Grant
    Filed: April 25, 1997
    Date of Patent: January 26, 1999
    Assignee: The International Metals Reclamation Company, Inc.
    Inventors: William A. Boy, David M. Hoffman