Patents by Inventor Paul L. Shilling

Paul L. Shilling 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: 5709120
    Abstract: A drawing device which may be vertically or horizontally disposed in operation has a single rigid formed or extruded length as a bed. To one end of the bed is affixed a manual winch using a belt for applying tension to the workpiece. The belt is affixed to the upper end of a draw block with a lower end pivoted to two inverted lateral link arms each extending outward with an incline upwards to one distal end of the two straight, non-crossing jaw arms. The tension applied to the draw block is translated by the inverted lateral link arms into force directed outward upon the distal ends of the jaw arms which closes the jaws. The mechanical leverage obtained allows a reduction in overall length and weight of the draw tongs. Between the draw block and a stop bracket to which the jaws are pivoted, a stop bolt extends with a spring about it in compression biasing the jaws shut and facilitating manual loading of the workpiece.
    Type: Grant
    Filed: February 23, 1996
    Date of Patent: January 20, 1998
    Inventor: Paul L. Shilling