Patents by Inventor Harry L. Dale

Harry L. Dale 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).

  • Patent number: 4823718
    Abstract: A device which allows hanking characterized by improved apparatus in a boat with a conventional mast, a plurality of lines and accessories, roller furling jib headsail, comprising a large diameter ring disposed about the furling jib system and furled said headsail wiht rollers that allow said ring to move vertically along said furling jib system and headsail without damage to said headsail for most efficiently controlling a cruising spinnaker sail in a vertical plane. Also disclosed are details of the rings and rollers thereon.
    Type: Grant
    Filed: November 16, 1987
    Date of Patent: April 25, 1989
    Inventor: Harry L. Dale