US Patent No: 4,246,742

Number of patents in Portfolio can not be more than 2000

Double sickle mechanism

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ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

Two sickles, each slightly longer than half the width of the swath taken by the mower, are supported across the front of the mower for reciprocation in mutually opposite directions. Although the two sickles are located in the same vertical plane, they are situated in two different horizontal planes so as to permit overlap in the center during reciprocation. To further facilitate such overlap, the backing bar to which the knife sections of one sickle are attached is located on top of the sections, while on the other sickle, the backing bar is located along the bottom of the sections. The sections are so arranged adjacent the inner ends of the sickles that even when the sickles are at the extremes of their outward strokes away from one another, no gap is presented in the center between the two innermost sections of the two sickles, thereby promoting even cutting across the entire swath taken by the sickle assembly.

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First Claim

Related Publications

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Patent Owner(s)

Patent OwnerAddressTotal Patents
HAY & FORAGE INDUSTRIES, A KANSAS GENERAL PARTNERSHIPHESSTON, KS126
HESSTON VENTURES CORPORATIONHESSTON, KS51

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Clark, Stanley R Hesston, KS 34 191
Lohrentz, Howard R Hesston, KS 8 96

Cited Art

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Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
AGCO CORPORATION (14)
7,921,627 Interlocking belt guards for a draper header 0 2008
7,886,511 Draper head with flexible cutterbar having rigid center section 0 2008
7,802,417 Combine harvester draper header central auger transition floor pan 4 2009
7,913,481 Adjustable cutterbar travel range for a flexible cutterbar header 1 2009
7,827,773 Center crop deflector for draper header 3 2009
7,874,132 Header height control system with multiple potentiometer input 0 2009
7,886,512 Draper belt interlocking guards 2 2009
7,877,976 Spring flotation for center deck of draper header 3 2009
7,827,775 Flexible draper and cutter bar having shiftable crop divider with deflector 2 2009
7,926,248 Combine harvester draper header having flexible cutterbar 2 2009
7,836,671 Flexible draper and cutter bar with tilt arm for cutterbar drive 1 2009
7,937,920 Combine harvester draper header having flexible cutterbar 3 2009
8,205,421 Belt guard crop dam for flexible draper header 0 2010
7,958,711 Crop deflector for ends of draper belt of flexible draper header 1 2010
 
MACDON INDUSTRIES LTD. (3)
4,660,361 Mower with two sickle bars 7 1985
6,543,211 Crop harvesting header with angle adjustment of the knife guards 0 2001
7,328,565 Knife guard construction for sickle knife 0 2007
 
DEERE & COMPANY (2)
4,644,738 Twin sickle cutter bar 4 1985
7,478,522 Reciprocating knife cutter system 15 2007
 
CNH AMERICA LLC (1)
6,708,476 Sickle cutterbar assembly 3 2002
 
CRARY INDUSTRIES, INC. (1)
7,658,059 Synchronous drive for split sickle bars on harvester header 1 2007
 
HAY & FORAGE INDUSTRIES, A KANSAS GENERAL PARTNERSHIP (1)
4,815,265 Harvesting header having timed double sickle toothed belt drive 22 1987
 
VICON WESTERN CANADA (1)
4,446,683 Knife drive 22 1982