Patent ID: 7740198
Filing Date: 2010-06-22
Classification: A01F,Y10S

Abstract:
1. A straw chopper comprising: a frame arranged to be supported for movement across the ground in a forward working direction; a chopping chamber supported by the frame to extend generally in the forward working direction between an inlet arranged to receive straw and an outlet arranged to discharge the straw therefrom; at least one shaft supported in the chopping chamber for rotation about a respective longitudinal axis extending generally in the forward working direction; a plurality of chopping blades supported on said at least one shaft to extend radially outward from said at least one shaft; each chopping blade including an impeller surface sloped forwardly into a direction of rotation of said at least one shaft so as to be arranged to generate a rearward thrust of air in the chopping chamber from the inlet to the outlet as the chopping blades are rotated about the about the respective longitudinal axis with said at least one shaft.