Combine harvester having a straw chopper and husk discharger

Patent 6656038 Issued on December 2, 2003. Estimated Expiration Date:

January 16, 2022. 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.

Abstract Claims Description Full Text

Patent References

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Inventor

Persson, Sven Johan

Assignee

Rekordverken Sweden AB

Application

No. 10/018138 filed on 01/16/2002

US Classes:

460/112With chopper

Examiners

Primary: Will, Thomas B.
Assistant: Mammen, Nathan

Attorney, Agent or Firm

Burns, Doane, Swecker & Mathis, L.L.P.

International Classes

A01D 41/00 (20060101)
A01D 41/12 (20060101)
A01F 12/40 (20060101)

Foreign Application Priority Data

1999-07-06 SE

Abstract

A combine harvester includes a device for discharging husks, the husk discharging device having at least one fan rotatably mounted in a fan casing, the fan casing having at least one husk discharge opening, a device for chopping straw arranged downstream of the husk discharging device, the straw chopping device having a rotating cutting rotor in a rotor casing for chopping straw, the rotor casing having an inlet for unchopped straw and an outlet for chopped straw, and a control device arranged between the husk discharging device and the straw chopping device, the control device being movable between a first position in which the control device closes the inlet of the rotor to bypass the straw chopping device and a second position in which the inlet of the rotor is open to allow chopping of the straw. The husk discharge opening in the fan casing is shiftable between a first position in which husks are permitted to be spread over a substrate, and a second position in which the husks are permitted to mix with unchopped straw.