Patents by Inventor Liborio Strazzeri

Liborio Strazzeri 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).

  • Rotatable, automatic fin device notably for a sail board or analogous
    Patent number: 5070804
    Abstract: The invention concerns a directional fin of variable incidence at which are associated: two springs for returning the fin to central position and a symmetrical supple tooth fittings break the oscillations toward the exterior and facilitate the return movement of the fin toward the center. The apparatus facilitates the maneuvers of the board and reduces the efforts of the wind surfer.
    Type: Grant
    Filed: April 24, 1989
    Date of Patent: December 10, 1991
    Inventor: Liborio Strazzeri