Patents by Inventor Stephen Hampton Ditmore

Stephen Hampton Ditmore 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).

  • Sailboat keel with a rotatable secondary foil
    Patent number: 6453836
    Abstract: A fin-type sailboat keel with a ballast bulb and a single winglet projecting from the after portion of the bulb is disclosed. The after portion of the bulb, to which the winglet is affixed, rotates, allowing the winglet to be canted about the centerline of the bulb 360 degrees. The winglet can have an adjustable angle of attack or a flap at its trailing edge, allowing various effects to be achieved. Mechanisms for the control of these moving parts are described. A fin stabilizer of similar geometry is also claimed.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: September 24, 2002
    Inventor: Stephen Hampton Ditmore