Patents by Inventor Fred C. Lindsey

Fred C. Lindsey 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).

  • Wind driven mechanical drive
    Patent number: 3964426
    Abstract: A mechanical drive actuated by wind has propellers rotatably mounted on a vertical standard which is rotatably fastened to the deck of a ship. The rotational force of the propellers is transmitted by a series of shafts to drive the ship's screw. The vertical standard may be rotated to take full advantage of the prevailing winds.
    Type: Grant
    Filed: March 24, 1975
    Date of Patent: June 22, 1976
    Inventor: Fred C. Lindsey