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

Converging drum for mower-conditioner equipped with a rotary disc cutter bar

Patent 6718743 Issued on April 13, 2004. Estimated Expiration Date: Icon_subject January 28, 2023. 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

3462927

3772865

Mower-conditioner
Patent #: 4094132
Issued on: 06/13/1978
Inventor: Decoene ,   et al.

Drive for mower
Patent #: 4160356
Issued on: 07/10/1979
Inventor: Mathews

Deflector means for mower-conditioner
Patent #: 4212143
Issued on: 07/15/1980
Inventor: Chaumont

Mowing device
Patent #: 4238917
Issued on: 12/16/1980
Inventor: Oosterling ,   et al.

Device for reducing the width of windrows formed by a mower
Patent #: 4244163
Issued on: 01/13/1981
Inventor: Gantzer ,   et al.

Farm machine having a deformable suspension mechanism
Patent #: 5107663
Issued on: 04/28/1992
Inventor: Wattron, et al.

Rotary cutter bed harvester with non-auger conveying means for outboard cutters
Patent #: 5433064
Issued on: 07/18/1995
Inventor: Schmitt, et al.

Header equipped with rotary cutterbar and crop converging structure
Patent #: 5768865
Issued on: 06/23/1998
Inventor: Rosenbalm, et al.

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Inventors

Assignee

Application

No. 10353128 filed on 01/28/2003

US Classes:

56/6, GANG56/13.6Separately-acting cutter units

Examiners

Primary: Kovács, Árpád Fábián

Foreign Patent References

  • 0753246 EP 01/01/1997

International Class

A01D 7530

Abstract

A mower-conditioner includes a header or platform which is equipped with a rotary disc cutter bar having a relatively long length with at least two cutting units being outboard of a central discharge passage where a pair of conditioner rolls are mounted for receiving the cut crop. Aiding in conveying crop to the discharge passage are right- and left-hand sets of three crop converging drums provided at each side of the discharge passage. The outer drums of the two sets are respectively mounted to the top of the right- and left-hand end cutting units of the cutter bar while the other two drums on each side are located behind an inward and rearward extending line that is tangent to the cylindrical path traced by the outer and inner ones of the drums on each side of the discharge passage. In one embodiment, a direct drive transmission is provided, and in a second embodiment a hydraulic motor is provided, for driving the inner two converging drums of each set.

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