U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Flow distributor apparatus for controlling spread width of a straw spreader

Patent 7390253 Issued on June 24, 2008. Estimated Expiration Date: Icon_subject May 21, 2027. 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

1233749

2538886

3232627

3539113

Harvester thresher with means for distributing grain-chaff mixture
Patent #: 4917652
Issued on: 04/17/1990
Inventor: Glaubitz, et al.

Residue spreading apparatus for agricultural combines
Patent #: 5797793
Issued on: 08/25/1998
Inventor: Matousek, et al.

Adjustable chopper shaft
Patent #: 5890353
Issued on: 04/06/1999
Inventor: Brown

Straw chopper housing
Patent #: 6251009
Issued on: 06/26/2001
Inventor: Grywacheski, et al.

Straw and chaff spreader with spread to the rear
Patent #: 6406368
Issued on: 06/18/2002
Inventor: Cruson, et al.

Rotary accelerating apparatus for a crop residue spreader of an agricultural combine
Patent #: 6572035
Issued on: 06/03/2003
Inventor: Pfeiffer

More ...

Inventors

Assignee

Application

No. 11804913 filed on 05/21/2007

US Classes:

460/111, STRAW CHAFF SPREADER OR HANDLING (DISCHARGE)239/673Plural scatterers receiving material axially

Examiners

Primary: Fábián-Kovács, Árpád

Attorney, Agent or Firm

Foreign Patent References

  • 3331169 DE 03/01/1985
  • 3820681 DE 12/01/1989
  • 0084872 EP 08/01/1983
  • 0104622 EP 04/01/1984
  • 0404141 EP 12/01/1990
  • 0551949 EP 07/01/1993
  • 2708214 FR 02/01/1995

International Class

A01F 12/30

Abstract

A flow distributor apparatus for a vertical spreader operable for discharging a flow of straw or other crop residue in a sideward direction over a field, the flow distributor apparatus including a flow guide element, an adjusting mechanism, and a coupling connector connecting the flow guide element to the adjusting mechanism for controllable repositioning of the flow guide element relative to the spreader paddles. The flow guide element is disposed generally adjacent to the back plate of the spreader and intermediate the spreader paddles with an apex portion, laterally extending arm portions, and longitudinally extending crop residue flow surfaces, at least portions of which crop residue flow surfaces extend beneath the spreader paddles. The adjusting mechanism is operable to effect at least either vertical, horizontal, or rotational movement of the flow guide element relative to the spreader paddles to adjustably vary the clearances between the outer swept diameters of the spreader paddles and the crop residue flow surfaces to control the sidewardly outwardly discharge of crop residue from the spreader.

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