Patents by Inventor Paul M. H. W. Vijgen

Paul M. H. W. Vijgen 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).

  • Serrated trailing edges for improving lift and drag characteristics of lifting surfaces
    Patent number: 5088665
    Abstract: An improvement in the lift and drag characteristics of a lifting surface is achieved by attaching a serrated panel to the trailing edge of the lifting surface. The serrations may have a saw-tooth configuration, with a 60.degree. included angle between adjacent serrations. The serrations may vary in shape and size over the span-wise length of the lifting surface, and may be positioned at fixed or adjustable deflections relative to the chord of the lifting surface.
    Type: Grant
    Filed: October 31, 1989
    Date of Patent: February 18, 1992
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Paul M. H. W. Vijgen, Floyd G. Howard, Dennis M. Bushnell, Bruce J. Holmes