Patents by Inventor Richard Silvester

Richard Silvester 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).

  • Thrust augmenter
    Patent number: 4666411
    Abstract: A thrust augmenter for a propeller fluid drive (11) comprising a hollow substantially cylindrical body (12) having an open rear face (15) which is part circular or circular and is located closely adjacent and ahead of the propeller (11) wherein the outside diameter of the rear face (15) is larger than the propeller (11).
    Type: Grant
    Filed: July 3, 1985
    Date of Patent: May 19, 1987
    Inventor: Richard Silvester