US 12,108,703 B2
Weed seed destruction with replaceable stator components
Dean Mayerle, Saskatoon (CA)
Assigned to Tritana Intellectual Property Ltd., Saskatoon (CA)
Filed by Dean Mayerle, Saskatoon (CA)
Filed on Jan. 15, 2021, as Appl. No. 17/150,196.
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 17/150,196 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 2021/0127587 A1, May 6, 2021
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. An apparatus for use in a combine harvester where the combine harvester comprises a separation system for separating from harvested crop a first material comprising straw and a second material comprising chaff and weed seeds, the apparatus comprising:
a weed seed destructor section for receiving the second material comprising:
a destructor rotor housing arranged to receive the second material;
a destructor rotor arrangement mounted in the destructor rotor housing for rotation about an axis and including rotor surfaces thereon for engaging the second material and for accelerating the second material in a direction generally outwardly of the rotor axis;
at least one stator arrangement mounted at a location outwardly of the rotor axis for engaging the weed seeds in the accelerated second material to cause a plurality of impacts with the weed seeds;
the at least one stator arrangement comprising a stator support structure surrounding the rotor axis and a plurality of stator surface elements mounted on the stator support structure;
each of the stator surface elements carrying a plurality of individual seed engaging surface portions;
where each individual seed engaging surface portion of each respective one of the stator surface elements extends generally parallel to the rotor axis and, in a plane radial to the rotor axis, forms an angle which is different from an angle of others of the individual seed engaging surface portions of the respective one of the stator surface elements;
wherein each of the stator surface elements carrying the individual seed engaging surface portions thereon is separate from the others of the stator surface elements;
wherein each of the stator surface elements carrying the individual seed engaging surface portions thereon is removable from the stator support structure and is replaceable.