Patents by Inventor John F. Hurckman

John F. Hurckman 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: 5920996
    Abstract: The above objects and advantages are provided for in improved archery bow sight assembly which provides a floating two-pin sight system for sighting a target. According to the invention, a sight assembly body having a forward portion and rear portion is attached directly to the bow. Pivotally attached to the front portion is a floating sight pin. Pivotally attached to the rear portion is a floating peep sight. Movement of the sight pin and peep sight is caused by a sight adjustment lever. Gear teeth on the sight adjustment lever are meshingly engaged with gear teeth on the peep sight arm. The gear teeth of the adjustment lever are indirectly engaged with the sight pin arm via idler gears. This arrangement allows the peep sight and sight pin to move in the same direction as the sight adjustment lever is manipulated.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: July 13, 1999
    Assignee: Hurckman Mechanical Industries, Inc.
    Inventors: John F. Hurckman, David L. Porter