US Patent No: 7,958,707

Number of patents in Portfolio can not be more than 2000

Non-parallel four-bar linkage for suspending an agricultural implement header

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Importance

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Abstract

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A suspension system for agricultural implements having at least one floating head using a four-bar linkage and permitting the floating head to accommodate variations in ground surface elevation in a lateral or transverse direction. By permitting the floating head to float, a more consistent cutting height is realized when ground surface elevation varies in a transverse direction. A main frame is provided to which the ground engaging wheels are attached. A sub-frame is connected to the main frame via the four-bar linkage and the linkage arms of the four-bar linkage are not parallel to one another as viewed from above. The linkage arms of the four-bar linkage are pivotally attached to the main frame and sub-frame by spherical bearings.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
VERMEER MANUFACTURING COMPANYPELLA, IA245

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bentzinger, Rustin V Pella, US 19 155
Bollinger, Shane A Leighton, US 16 96
Thompson, Kent L Otley, US 18 143

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (4)
4,345,873 Material handling vehicle 12 1980
5,193,330 Agricultural reaping or haying machine 16 1990
* 5,918,451 Dual lifting system for rotary hay raking machine 11 1997
6,698,113 Decelerating fluid actuator for snowplows and other heavy machinery 10 2003
 
Komatsu Dresser Company (1)
4,351,397 Vibrating ripper 16 1980
 
CRIDER, GRANT W. (1)
5,566,536 Mower-conditioner platform suspension including single upper arm and hydraulic cylinder for platform lift 20 1995
 
AGCO CORPORATION (2)
6,588,513 Articulating hitch assembly 13 2000
* 6,238,170 Agricultural implement trailer 21 2000
 
MacDon Industries Ltd. (1)
5,157,905 Support linkage for mounting a header on a support frame 40 1991
 
SHELDON/VAN SOMEREN, INC. (1)
5,743,020 Three-axis continuous probe 11 1996
 
MASKINFABRIKEN TAARUP A/S (1)
5,337,544 Mower conditioner 24 1992
 
DEERE & COMPANY (6)
6,186,043 Cushion hydraulic cylinder 17 1999
6,250,055 Suspension for a mowing unit 18 1999
6,758,031 Cutting angle adjustment for mowing heads 29 2002
7,024,844 Agricultural bi-mower with cantilever beam suspension 19 2004
7,047,714 Tongue swing cylinder arrangement for rotary side-pull mower-conditioner 13 2005
7,370,460 Drawn cotton picker 8 2006
 
Anderson; Jack F. (1)
4,518,043 Tool apparatus with control to move tool when object approached 104 1982
 
YETTER MANUFACTURING COMPANY (1)
4,858,698 Weight transfer linkage arrangement 13 1988
 
CROSS MANUFACTURING, INC. (1)
2004/0035,288 Cushioned hydraulic cylinder 11 2002
 
TRANSPACIFIC INFORMATION, LLC (2)
2002/0027,612 Spatio-temporal channel for images 34 2001
2002/0027,612 Spatio-temporal channel for images 34 2001
 
BLUE LEAF I.P., INC. (3)
4,724,661 Two piece crop harvesting header and flotation mechanism therefor 69 1986
4,723,401 Steerable wheel assembly for unitized rakes 42 1986
6,360,516 Two stage hydraulic tongue swing mechanism 23 2000
 
Vermeer Manufacturing Company (4)
6,655,118 Suspension system 22 2002
7,596,935 Suspension system for a floating header on an agricultural implement 21 2007
7,658,056 System for folding an agricultural machine with a floating work tool 13 2007
2009/0107,100 CUSHIONED SWING CYLINDER FOR AGRICULTURAL MOWER 3 2007
 
CNH AMERICA LLC (2)
4,599,852 Adjustable leaf spring suspension for flexible cutterbar 41 1985
6,662,540 Method and apparatus for controlling pivotal movement of the tongue of a harvesting machine 15 2002
 
KUHN S.A. (20)
4,723,396 Mower 42 1986
4,719,742 Mowing machine 48 1987
4,848,069 Mower 26 1987
4,970,848 Mower with release safety device 19 1990
5,107,663 Farm machine having a deformable suspension mechanism 51 1990
5,060,462 Mower having a lightening mechanism 62 1990
5,094,063 Mower including a group of working elements extending crosswise to a direction of advance at work 48 1990
5,417,042 Farm machine with improved load-lightening and lifting device 38 1993
5,357,737 Mower having a device for driving processing rollers of the mower 42 1993
5,992,133 Agricultural machine for harvesting plant matter, with two conditioning units 25 1997
6,055,800 Agricultural cutting machine comprising an improved suspension device for the cutting mechanism 25 1998
6,125,619 Implement or machine comprising a working unit articulated to a carrying structure, and method of articulation 12 1998
6,085,501 Automatic adjusting for lightening a machine working unit: method, device and machine 24 1998
* 6,345,490 Agricultural machine including a locking mechanism for preventing a double-rod ram from rotating around its longitudinal axis 11 1999
6,269,619 Mower with a centralized device for adjusting the lightening force exerted on the harvesting mechanism 19 1999
6,308,504 Device for treating cut fodder and mower employing such a treatment device 15 2000
6,381,935 Cutting machine comprising a cutting device connected to a chassis by means of an improved connecting device 18 2000
6,907,719 Agricultural implement comprising a transporting device 14 2003
2006/0248,870 Machine for gathering products such as grass 18 2004
2007/0144,130 Hay-harvest machine provided with a hinged frame 11 2004
 
ERGOTRON, INC. (1)
5,738,316 Vertical work center 94 1995
 
PEIRCE WELDING & FABRICATING, INC. (1)
5,203,154 Hay rake and merger 41 1991
 
AHWI MASCHINENBAU GMBH (1)
6,347,504 Vehicle with a working device, especially with a chopping device 6 2000
 
Hay & Forage Industries (2)
4,676,053 Quick adjust flotation apparatus for a crop harvester 19 1985
5,566,535 Remote header angle adjustment mechanism for swing-tongue harvesters 29 1995
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
Vermeer Manufacturing Company (4)
* 8,261,521 Self-leveling four-bar linkage for suspending a header of an agricultural implement 1 2009
* 2011/0047,948 Self-Leveling Four-Bar Linkage for Suspending a Header of an Agricultural Implement 7 2009
8,333,058 Self-leveling four-bar linkage for suspending a header of an agricultural implement 0 2012
8,511,049 Self-leveling four-bar linkage for suspending a header of an agricultural implement 0 2012
 
KUHN NORTH AMERICA, INC. (2)
* 8,402,730 Multi-axis floating merger suspension 0 2009
* 2009/0241,503 MULTI-AXIS FLOATING MERGER SUSPENSION 9 2009
 
BLUE LEAF I.P., INC. (2)
* 8,528,308 Disc mower with folding wing frame 2 2010
* 2011/0173,940 DISC MOWER WITH FOLDING WING FRAME 3 2010
* Cited By Examiner

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Dec 14, 2018
11.5 Year Payment $7400.00 $3700.00 $1850.00 Dec 14, 2022
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00