Patents by Inventor Henry A. Scheel

Henry A. Scheel 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
    Patent number: 4089286
    Abstract: A sailboat keel, especially for shoal draft sailboats, which reduces turbulence and generated vortices and increases laminar flow along the hull and keel, which comprises a upper portion attachable to the canoe hull and a body portion extending downwardly from the upper portion, the body portion flaring outwardly so as to have a maximum width at its plane of intersection with the keel bottom which is preferably smoothly curved.
    Type: Grant
    Filed: March 4, 1976
    Date of Patent: May 16, 1978
    Assignee: Jeanne Greaves Hall Sheel
    Inventor: Henry A. Scheel