Patents by Inventor John Prinz

John Prinz 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: 3937415
    Abstract: A downrigger that has a swivelled head to be mounted anywhere on the boat for use in trolling. The line extends over a reel mounted on a pedestal, which reel is provided with a locking device for holding it in a desired position and yet is released automatically in the event of a snag in the line. An automatic drag is applied to the rim of the reel with provisions for adjustment to enable the operator to adjust the speed at which he desires to let the sinkers go down to the desired depth by tightening or loosening the tension on the spring adjustment. A line guard is mounted on the pedestal in position to prevent the line from unwinding off the reel.
    Type: Grant
    Filed: May 16, 1973
    Date of Patent: February 10, 1976
    Inventor: John Prinz