Patents by Inventor Charles E. Spaeth

Charles E. Spaeth 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).

  • Nozzle flap hinge joint
    Patent number: 4756053
    Abstract: First and second flaps (10, 12) are joined at a hinge joint formed by a hollow hinge pin (22) passing through alternating lug extensions (18, 20) of the first and second flaps (10, 12). A plurality of flow openings (24) in the hollow hinge pin (22) are provided for establishing fluid communication between the interior of the first flap (10) and the interior of the second flap (12).
    Type: Grant
    Filed: February 24, 1987
    Date of Patent: July 12, 1988
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: William M. Madden, Claude R. Stogner, Charles E. Spaeth