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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ALSO PUBLISHED AS: 20100192534
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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, IA276

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bentzinger, Rustin V Pella, IA 32 95
Bollinger, Shane A Leighton, IA 25 70
Thompson, Kent L Otley, IA 30 75

Cited Art Landscape

Patent Info (Count) # Cites Year
 
KUHN S.A. (20)
4,723,396 Mower 41 1986
4,719,742 Mowing machine 47 1987
4,848,069 Mower 26 1987
4,970,848 Mower with release safety device 18 1990
5,107,663 Farm machine having a deformable suspension mechanism 41 1990
5,060,462 Mower having a lightening mechanism 54 1990
5,094,063 Mower including a group of working elements extending crosswise to a direction of advance at work 47 1990
5,417,042 Farm machine with improved load-lightening and lifting device 36 1993
5,357,737 Mower having a device for driving processing rollers of the mower 33 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 23 1998
6,125,619 Implement or machine comprising a working unit articulated to a carrying structure, and method of articulation 10 1998
6,085,501 Automatic adjusting for lightening a machine working unit: method, device and machine 21 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 18 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 17 2000
6,907,719 Agricultural implement comprising a transporting device 14 2003
2006/0248,870 Machine for gathering products such as grass 12 2004
2007/0144,130 Hay-harvest machine provided with a hinged frame 8 2004
 
DEERE & COMPANY (7)
4,216,975 Tractor hitch 21 1978
6,186,043 Cushion hydraulic cylinder 15 1999
6,250,055 Suspension for a mowing unit 15 1999
6,758,031 Cutting angle adjustment for mowing heads 24 2002
7,024,844 Agricultural bi-mower with cantilever beam suspension 14 2004
7,047,714 Tongue swing cylinder arrangement for rotary side-pull mower-conditioner 12 2005
7,370,460 Drawn cotton picker 5 2006
 
VERMEER MANUFACTURING COMPANY (4)
6,655,118 Suspension system 14 2002
2009/0107,100 CUSHIONED SWING CYLINDER FOR AGRICULTURAL MOWER 3 2007
7,596,935 Suspension system for a floating header on an agricultural implement 11 2007
7,658,056 System for folding an agricultural machine with a floating work tool 9 2007
 
BLUE LEAF I.P., INC. (3)
4,724,661 Two piece crop harvesting header and flotation mechanism therefor 67 1986
4,723,401 Steerable wheel assembly for unitized rakes 35 1986
6,360,516 Two stage hydraulic tongue swing mechanism 15 2000
 
AGCO CORPORATION (2)
6,588,513 Articulating hitch assembly 12 2000
6,238,170 Agricultural implement trailer 13 2000
 
CNH AMERICA LLC (2)
4,599,852 Adjustable leaf spring suspension for flexible cutterbar 38 1985
6,662,540 Method and apparatus for controlling pivotal movement of the tongue of a harvesting machine 13 2002
 
TRANSPACIFIC INFORMATION, LLC (2)
2002/0027,612 Spatio-temporal channel for images 12 2001
2002/0027,612 Spatio-temporal channel for images 12 2001
 
Agrimech Engineering Ltd. (1)
4,286,423 Crop cutting apparatus 18 1979
 
AHWI MASCHINENBAU GMBH (1)
6,347,504 Vehicle with a working device, especially with a chopping device 5 2000
 
Anderson; Jack F. (1)
4,518,043 Tool apparatus with control to move tool when object approached 102 1982
 
CASE CORPORATION (1)
4,239,085 Side shift assembly for earth-working implements 11 1979
 
CRIDER, GRANT W. (1)
5,566,536 Mower-conditioner platform suspension including single upper arm and hydraulic cylinder for platform lift 16 1995
 
CROSS MANUFACTURING, INC. (1)
2004/0035,288 Cushioned hydraulic cylinder 11 2002
 
ERGOTRON, INC. (1)
5,738,316 Vertical work center 65 1995
 
HAY & FORAGE INDUSTRIES, A KANSAS GENERAL PARTNERSHIP (1)
5,566,535 Remote header angle adjustment mechanism for swing-tongue harvesters 21 1995
 
HESSTON VENTURES CORPORATION (1)
4,676,053 Quick adjust flotation apparatus for a crop harvester 18 1985
 
KOMATSU DRESSER COMPANY, E. SUNNYSIDE 7TH ST., LIBERTYVILLE, IL., A GENERAL PARTNERSHIP UNDER THE UNIFORM PARTNERSHIP ACT OF THE STATE OF DE (1)
4,351,397 Vibrating ripper 13 1980
 
MACDON INDUSTRIES LTD. (1)
5,157,905 Support linkage for mounting a header on a support frame 37 1991
 
Maskinfabriken Taarup A/S (1)
5,337,544 Mower conditioner 23 1992
 
PEIRCE WELDING & FABRICATING, INC. (1)
5,203,154 Hay rake and merger 36 1991
 
Sheldon/Van Someren, Inc. (1)
5,743,020 Three-axis continuous probe 11 1996
 
Sperry Corporation (1)
4,218,865 Agricultural machines 15 1979
 
YETTER MANUFACTURING COMPANY (1)
4,858,698 Weight transfer linkage arrangement 10 1988
 
Other [Check patent profile for assignment information] (5)
4,207,802 Hydraulic cylinder with improved dashpot and porting 13 1978
4,345,873 Material handling vehicle 12 1980
5,193,330 Agricultural reaping or haying machine 15 1990
5,918,451 Dual lifting system for rotary hay raking machine 9 1997
6,698,113 Decelerating fluid actuator for snowplows and other heavy machinery 10 2003

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
VERMEER MANUFACTURING COMPANY (3)
8,261,521 Self-leveling four-bar linkage for suspending a header of an agricultural implement 0 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
 
BLUE LEAF I.P., INC. (1)
8,528,308 Disc mower with folding wing frame 0 2010
 
KUHN NORTH AMERICA, INC. (1)
8,402,730 Multi-axis floating merger suspension 0 2009

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Dec 14, 2014
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 - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
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