US 12,389,826 B2
Combine harvester with weed seed destruction
Dean Mayerle, Saskatoon (CA)
Assigned to Tritana Intellectual Property Ltd., Saskatoon (CA)
Filed by Tritana Intellectual Property Ltd., Saskatoon (CA)
Filed on May 24, 2022, as Appl. No. 17/752,131.
Application 16/654,162 is a division of application No. 16/016,827, filed on Jun. 25, 2018, granted, now 10,485,178, issued on Nov. 26, 2019.
Application 17/752,131 is a continuation of application No. 17/150,181, filed on Jan. 15, 2021, granted, now 12,225,845.
Application 17/150,181 is a continuation of application No. 16/654,162, filed on Oct. 16, 2019, granted, now 11,612,101.
Application 16/016,827 is a continuation of application No. 15/701,096, filed on Sep. 11, 2017, granted, now 10,492,369, issued on Dec. 3, 2019.
Application 15/701,096 is a continuation in part of application No. 15/209,151, filed on Jul. 13, 2016, granted, now 10,004,176, issued on Jun. 26, 2018.
Claims priority of provisional application 62/192,111, filed on Jul. 14, 2015.
Prior Publication US 2022/0295704 A1, Sep. 22, 2022
Int. Cl. A01D 41/12 (2006.01); A01D 69/00 (2006.01); A01F 12/40 (2006.01); A01F 12/48 (2006.01)
CPC A01D 41/1243 (2013.01) [A01D 69/00 (2013.01); A01F 12/40 (2013.01); A01F 12/48 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A combine harvester comprising:
a separation system for separating from harvested crop at a first discharge location a first material comprising straw and at a second discharge location a second crop residue material comprising chaff and weed seeds;
and an apparatus for damaging the weed seeds comprising:
a housing having at least one inlet for receiving the second crop residue material from the second discharge location and at least one outlet for discharging the second crop residue material after passage through the housing;
two rotors each for rotation about a respective axis where the axes are parallel, each rotor comprising a plurality of radially extending impact members;
the housing having a first portion surrounding the two rotors and an axially spaced discharge portion;
said at least one outlet of the housing located in the discharge portion and axially spaced from said at least one inlet of the housing;
wherein the at least one outlet in the discharge portion is at a location different from the first portion of the housing so that said weed seeds discharged from the rotor through said at least one outlet do not exit radially outwardly through the first portion of the housing;
and one or more fan members arranged to urge the crop residue material to move through the first portion of the housing from said at least one inlet to said at least one outlet;
wherein the plurality of radially extending impact members are configured to rotate with said two or more rotors and impact against the crop residue material as the crop residue material passes through the first portion of the housing to the discharge portion.