Patents by Inventor Harold A. Demarest

Harold A. Demarest 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: 5709350
    Abstract: A rotatable shaft supports supply spools having new fishing line thereon and a take-up spool for receiving worn-out line. An electric motor is provided to rotate the shaft in a take-off direction. The motor by being energized applies tension to line as it is taken from a supply spool to a fishing reel on a fishing rod. Ballast resistors in the power line leading to the motor act as an overload current absorber.
    Type: Grant
    Filed: February 14, 1996
    Date of Patent: January 20, 1998
    Inventors: Joseph Louis Davis, Harold A. Demarest