Patents by Inventor Stephen F. McGrath

Stephen F. McGrath 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).

  • Aircraft cavity acoustic resonance suppression system
    Patent number: 5699981
    Abstract: An aircraft cavity acoustic resonance suppression system is described which comprises a small diameter, substantially cylindrically shaped member disposed substantially parallel to and spaced up to a distance corresponding to about three airflow boundary layer thicknesses from the surface of the aircraft near the leading edge of the cavity and substantially transverse of airflow thereacross, and an actuator operatively connected to the member providing selective adjustment of the spacing between the member and the aircraft surface.
    Type: Grant
    Filed: March 18, 1996
    Date of Patent: December 23, 1997
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Stephen F. McGrath, Leonard L. Shaw