Patents by Inventor Evans E. Griffin

Evans E. Griffin 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).

  • Compressor part span shroud
    Patent number: 4798519
    Abstract: A compressor blade assembly for a compressor operating at transonic or supersonic blade speeds has a part span shroud. The shroud is twisted having a first angle in the direction of airflow on one side of the shock wave and a second angle in the direction of airflow on the other side of the shock wave.
    Type: Grant
    Filed: August 24, 1987
    Date of Patent: January 17, 1989
    Assignee: United Technologies Corporation
    Inventors: Robert H. Zipps, Kent A. Lyons, Evans E. Griffin