US 12,262,660 B2
Agricultural implement for field-collection, pulverization and field-dispersement of flax or hemp straw
George Fazakas, Raymore (CA)
Filed by George Fazakas, Raymore (CA)
Filed on May 25, 2021, as Appl. No. 17/330,100.
Claims priority of application No. CA 3081392 (CA), filed on May 27, 2020.
Prior Publication US 2022/0030770 A1, Feb. 3, 2022
Int. Cl. A01D 82/02 (2006.01); A01D 89/00 (2006.01); A01F 29/04 (2006.01); A01F 29/01 (2006.01)
CPC A01D 82/02 (2013.01) [A01D 89/003 (2013.01); A01F 29/04 (2013.01); A01F 29/01 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An agricultural implement for collecting, pulverizing and dispersing straw that has been windrowed during a harvesting operation, said implement comprising:
a frame configured for conveyance thereof in a forward working direction over an area of farmland on which said straw has been windrowed, said frame having opposing front and rear ends, of which said front end leads said rear end in the forward working direction;
a pickup mechanism supported on the frame at or proximate the front end thereof, and operably configured to pickup said straw from said farmland;
a first straw-processing stage residing in trailing relation to the pickup mechanism to receive said straw therefrom, said first straw-processing stage comprising:
a first rotor supported for rotation about a first rotation axis lying transversely to said forward working direction;
a first array of teeth mounted to the rotor in fixed positions thereon protruding outward therefrom, said first array of teeth being arrayed circumferentially around and axially along said first rotor;
a first concave supported in a position in which a concave side of said first concave faces inwardly toward the outer periphery of the first rotor in radially spaced relation therefrom, said concave side spanning a partial circumferential region of said first rotor in curved fashion from a leading end of the first concave nearest the front end of the frame to a trailing end of the first concave nearest the rear end of the frame; and
a second array of teeth mounted to the first concave in fixed positions thereon protruding inwardly from the concave side thereof toward the first rotor, said second array of teeth being arrayed in two dimensions across said first concave, wherein the first rotor is configured for driven rotation in a first predetermined direction operable to move said first array of teeth along the concave side of the first concave toward the trailing end thereof as said first array of teeth move through said partial circumferential region of the first rotor; and
a second straw-processing stage residing in trailing relation to the first straw-processing stage to receive said straw therefrom, said second straw-processing stage comprising:
a second rotor supported for rotation about a second rotation axis lying transversely to said forward working direction;
an array of knives supported on said second rotor in positions arrayed circumferentially around and axially along said second rotor, said array of knives being supported on said second rotor for swinging movement of said knives relative thereto, whereby said knives flail outward from said second rotor during driven rotation thereof, and wherein the second rotor is configured for driven rotation in a second predetermined direction operable to move said knives rearwardly from a transition region from which straw is received from said first straw-processing stage.