Corn and cereal thrasher
Patent 4337782 Issued on July 6, 1982. Estimated Expiration Date: 
May 22, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 22, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 1374518 2931362 3631861 3844293 Infeed means for axial flow combine Thresher Patent #: 4185642 InventorAssigneeApplicationNo. 06/266215 filed on 05/22/1981US Classes:460/64, Vertical axle type460/100With fan featureExaminersPrimary: Hafer, Robert A.Attorney, Agent or FirmInternational ClassA01F 11/00 (20060101)AbstractA corn and cereal thrasher comprises a cylindrical screen in a vertical casing with an annular space between the screen and the casing. A rotor rotatable concentrically inside the screen comprises successively, from the lower end, a helical screw portion for raising grain to be thrashed, thrashing loops and thrashing blades for thrashing grain raised by the screw and projecting it out through the screen, and a radial fan at the top for raising straw and chaff and discharging them through an opening in the casing. Grain to be thrashed is fed to the screw through an opening at one side near the bottom and the thrashed grain is deflected by an inclined plate to an opening on the opposite side of the casing. | |
