Patents by Inventor William S. Clapper

William S. Clapper 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).

  • Apparatus for suppressing internally generated gas turbine engine low frequency noise
    Patent number: 4244440
    Abstract: A method and apparatus for suppressing internally generated gas turbine engine low frequency noise is disclosed. The apparatus is comprised of means for structuring the cross-sectional area of the gas flow path into one or more open elements of a predetermined size. The method involves a way of determining the size of each of the elements and the total number of elements.
    Type: Grant
    Filed: December 1, 1978
    Date of Patent: January 13, 1981
    Assignee: General Electric Company
    Inventors: Ram K. Matta, William S. Clapper