US Patent No: 6,817,166

Number of patents in Portfolio can not be more than 2000

Crop feed draper for a header

ALSO PUBLISHED AS: 20040148919




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A draper header includes two side drapers each running from an outer end guide roller at a first end of the header to an inner end guide roller adjacent the discharge location of the header and a central feed draper located at the discharge location and including a front guide roller just behind the cutter bar and running to a rear guide roller in front of the feeder house of the combine harvester. An auger is located between the discharge rollers with a front edge of the flight forward of the rear end of the discharge rollers to feed the material inwardly and underneath the auger to the inlet of the feeder house. The feed draper carries cleats which are angled to the rollers in two sections converging to a central leading apex to reduce forces on the cleat as they pass over the front guide roller which is of reduced diameter to fit within a small space adjacent the cutter bar. The connection at the ends of the draper canvas is also angled to the rollers so as to be parallel to the cleats and includes separate connectors having a convex shape.

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Patent Owner(s)

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Inventor Name Address # of filed Patents Total Citations
Dunn, James Thomas Winnipeg, CA 26 108

Cited Art Landscape

Patent Info (Count) # Cites Year
5,005,343 Header for a combine harvesting machine 36 1989
4,956,966 Header for a combine harvesting machine 36 1990
RE35543 Header for a combine harvesting machine 37 1993
6,675,568 Multi-section header with flexible crop cutting knife 57 2002
Hay & Forage Industries (1)
4,938,010 Harvesting header having adjustable width, draper belt discharge opening 25 1988
4,429,517 Harvesting header with adjustable draper for left, right or center delivery 41 1981
5,464,371 Feeder adapter for mounting a combine header to a feeder housing of a combine 46 1994
Sperry Corporation (1)
4,216,641 Crop harvesting machine 31 1979

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
7,921,627 Interlocking belt guards for a draper header 1 2008
7,886,511 Draper head with flexible cutterbar having rigid center section 2 2008
7,802,417 Combine harvester draper header central auger transition floor pan 7 2009
7,913,481 Adjustable cutterbar travel range for a flexible cutterbar header 3 2009
7,827,773 Center crop deflector for draper header 5 2009
7,874,132 Header height control system with multiple potentiometer input 1 2009
7,886,512 Draper belt interlocking guards 5 2009
7,877,976 Spring flotation for center deck of draper header 6 2009
7,827,775 Flexible draper and cutter bar having shiftable crop divider with deflector 3 2009
7,836,671 Flexible draper and cutter bar with tilt arm for cutterbar drive 2 2009
7,937,920 Combine harvester draper header having flexible cutterbar 8 2009
8,205,421 Belt guard crop dam for flexible draper header 8 2010
7,958,711 Crop deflector for ends of draper belt of flexible draper header 5 2010
8,479,483 Flexible draper head providing reduced crop residue accumulation 0 2011
8,534,037 Flexible cutterbar stop structure for draper header 0 2012
8,438,824 Combine harvester draper header with floor pan rearward of central draper 0 2012
7,281,365 Crop gathering device with conveyor belt assembly 4 2004
7,650,736 Center conveyor front coupler for a draper cutting platform 4 2008
8,555,607 Integrated draper belt support and skid shoe in an agricultural harvesting machine 0 2012
8,776,487 Integrated draper belt support and skid shoe in an agricultural harvesting machine 0 2013
7,614,206 Winged header apparatus and method for a combine 4 2007
7,587,885 Central auger crop feed system for a harvester 3 2007
7,448,491 Combine header belt tensioning apparatus and method 4 2007
7,444,798 Crop feed arrangement for the header of a combine harvester 17 2006

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 May 16, 2016
Fee Large entity fee small entity fee micro entity fee
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