Case Corporation

John T Sponzilli

Jimmy R Kreftmeyer

Corey Neumann

Christopher J Shutts

James L Sherman

Edward N A Rahe

Edward Norman Rahe

Timothy J Bergan

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&deg;. The cast iron contains 18% to 23% chromium. The rasp bar walls are about 15 mm thick.

Rasp bar threshing element and assembly

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.

Hardfaced agricultural sweep and method for applying hardfacing

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Warrenville, IL, United States of America

John T Sponzilli