Patents by Inventor Stephen James Schertler

Stephen James Schertler 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: 6053521
    Abstract: A novel load sensing trailer ball-hitch and drawbar mechanism (30) compatible with industry standard coupling, drawbar receivers and vehicle bumper systems consisting of an upstanding elongated vertical ball-hitch post assembly (4) is provided, featuring the integration of a load sensing device (14) therein. The ball-hitch assembly by means of a threaded stud-bolt (20) received into the threaded lower cavity, is to be attached to industry-standard draw-bar or bumper fittings as used on recreational vehicles, trucks and vans. A drawbar (30), has integrated therein a singular or plurality of load sensing devices (14). Overloading of the force measuring device is achieved by means of a mechanical stop fitting (28). Signals derived from this force measuring device are transmitted to a board computer providing an analog or digital representation of the forces acting upon the ball-hitch drawbar assembly.
    Type: Grant
    Filed: April 16, 1998
    Date of Patent: April 25, 2000
    Inventor: Stephen James Schertler