Patents by Inventor Keith C. Sugden

Keith C. Sugden 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).

  • Yacht keels
    Patent number: 4352335
    Abstract: The invention provides a keel comprising two mutually inclined fins 1, 2 which are movable relative to a hull on which the keel is mounted and means such as releasable ratchet devices 31, 32 for locking the fins in any of a plurality of positions relative to the hull. The keel may thus be selectively positioned asymmetrically with respect to the hull to give improved performance and to provide a stable base on inclined surfaces.
    Type: Grant
    Filed: May 16, 1980
    Date of Patent: October 5, 1982
    Inventor: Keith C. Sugden