Patents by Inventor John T. Sponzilli

John T. Sponzilli 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).

  • Rasp bar threshing element and assembly
    Patent number: 6264553
    Abstract: A threshing element for an axial flow combine comprising a chromium steel alloy rasp bar. The rasp bar is cast of chromium-moly white cast iron with an inclined front face with a slope of about 52.5°. The cast iron contains 18% to 23% chromium. The rasp bar walls are about 15 mm thick.
    Type: Grant
    Filed: August 16, 1999
    Date of Patent: July 24, 2001
    Assignee: Case Corporation
    Inventors: Corey Neumann, Edward N. A. Rahe, John T. Sponzilli
  • Hardfaced agricultural sweep and method for applying hardfacing
    Patent number: 5813475
    Abstract: An agricultural sweep has a main body with a cutting edge including a tip and winged portions extending away from the tip. The tip and winged portions have hardfacing material on them. In the improvement, the width of the hardfacing material on the tip is greater than the width of the hardfacing material on the winged portions, thereby conforming the location of hardfacing material to a soil pressure gradient along the cutting edge. A new method for applying a hardfacing material to an agricultural sweep includes the steps of (a) determining a face pressure gradient resulting from soil passing across the face and applying hardfacing material to those portions of the face at which the gradient exceeds a predetermined value.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: September 29, 1998
    Assignee: Case Corporation
    Inventors: Timothy J. Bergan, Jimmy R. Kreftmeyer, Edward Norman A. Rahe, James L. Sherman, Christopher J. Shutts, John T. Sponzilli