Patents by Inventor James W. Riggins

James W. Riggins 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).

  • Patent number: 4848702
    Abstract: An aero marine vehicle having a fuselage having front wings extending from its respective left and right sides. Engines are mounted in these wings and their drive propellers are supported adjacent the rear edge of these wings. A pair of laterally spaced hull members are supported beneath the respective right and left wings. A plenum chamber is formed in each of the hull members with the bottom wall of the hull members forming the bottom wall of the plenum chambers. Exhaust lines are connected between the engines and the respective plenum chambers. The bottom wall of the hull members has a plurality of exhaust ports formed therein which allow the escaping exhaust gases to form a boundary layer of air between the bottom wall of the hull members and the water they are floating upon to overcome the suck-down effect of the water upon the hull member. The majority portion of the interior of the hull members form a buoyancy chamber.
    Type: Grant
    Filed: May 4, 1987
    Date of Patent: July 18, 1989
    Inventor: James W. Riggins