IP Library › Granted Patent US 12,611,699
Granted Patent B2
US 12,611,699 · App. 18/109,158 · Granted Apr 28, 2026

System and method for an agricultural harvester

Inventor: Martin J. Roberge (Québec City, CA)
Assignee: CNH Industrial Canada, Ltd.
B07B9/02A01D41/12A01D45/10
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Quick Facts
Patent No.
US 12,611,699
App. No.
18/109,158
Granted
Apr 28, 2026
Kind
B2
Abstract

A debris removal system for an agricultural harvester can include an extractor housing defining a housing inlet, a housing outlet, and a passage. The extractor housing can further define an airflow channel for directing debris through the extractor housing from the housing inlet to the housing outlet. An airflow device can be configured to generate an airflow from the housing inlet towards the airflow device. The airflow can be configured to separate the debris billets of a crop material. A drum can be positioned at least partially within the airflow channel and between the housing inlet and the passage. The debris within the airflow channel can be directed by the drum toward the housing outlet.

Claims (38)

1 . A debris removal system for an agricultural harvester, the debris removal system comprising:

an extractor housing defining a housing inlet, a housing outlet, and a passage, the extractor housing further defining an airflow channel for directing debris through the extractor housing from the housing inlet to the housing outlet;

an airflow device that generates an airflow from the housing inlet towards the airflow device, wherein the airflow separates the debris from billets of a crop material; and

a drum positioned at least partially within the airflow channel, the drum positioned between the housing inlet and the passage, wherein the debris within the airflow channel is directed by the drum towards the housing outlet, and wherein a portion of the drum extends through the housing outlet.

2 . The system of claim 1 , further comprising:

a deflector positioned at least partially within the drum, the deflector defining a duct, wherein the duct directs a path of the airflow therethrough.

3 . The system of claim 1 , further comprising:

a motor operably coupled with the drum that rotates the drum relative to the housing.

4 . The system of claim 1 , wherein the housing inlet and the housing outlet are positioned vertically below at least a portion of the drum.

5 . The system of claim 1 , wherein the passage is positioned vertically above at least a portion of the drum.

6 . The system of claim 1 , further comprising:

a debris processing assembly downstream of the drum.

7 . The system of claim 6 , wherein the debris processing assembly is a shredder that shreds the debris into smaller pieces.

8 . The system of claim 6 , wherein the debris processing assembly is a spreader that directs the debris exhausted through the housing outlet to cover a defined area.

9 . The system of claim 1 , further comprising:

an actuator operably coupled with the drum that moves the drum vertically between a first position and a second position relative to the housing.

10 . The system of claim 1 , further comprising:

a material shredder positioned between the housing inlet and the drum, the material shredder that moves between a first position and a second position relative to the housing.

11 . A method for operating a debris removal system for an agricultural harvester, the agricultural harvester including a material processing system that receives a flow of harvested materials, the method comprising:

generating, with an airflow device, an airflow through a channel defined by an extractor housing from a housing inlet defined by the extractor housing to a passage defined by the extractor housing;

rotating, with a motor, a drum positioned at least partially within the extractor housing;

moving, with a drum actuator, the drum vertically between a first position and a second position relative to the housing; and

directing, with the drum, debris from the housing inlet to a housing outlet defined by the housing.

12 . The method of claim 11 , further comprising:

directing the airflow generated by the airflow device through a duct positioned at least partially within the drum.

13 . The method of claim 11 , further comprising:

rotating, with a power source, a shredder positioned between the housing inlet and the drum to chop the debris.

14 . The method of claim 13 , further comprising:

moving, with a shredder actuator, the shredder vertically between a first position and a second position relative to the housing, wherein the shredder is at least partially within the channel when in the first position.

15 . A debris removal system for an agricultural harvester, the debris removal system comprising:

an extractor housing defining a housing inlet, a housing outlet, and a passage, the extractor housing further defining an airflow channel for directing debris through the extractor housing from the housing inlet to the housing outlet;

an airflow device that generates an airflow from the housing inlet towards the airflow device, the airflow that separates the debris from billets of a crop material;

a drum positioned at least partially within the airflow channel, the drum positioned between the housing inlet and the passage, wherein the debris within the airflow channel is directed by the drum toward the housing outlet; and

an actuator operably coupled with the drum, the actuator moves the drum vertically between a first position and a second position relative to the housing.

16 . The system of claim 15 , wherein an angle between the housing inlet and the housing outlet is less than 180 degrees relative to an axis of rotation of the drum.

17 . The system of claim 15 , wherein a portion of the debris is exhausted through the passage when the drum is in the second position.

18 . The system of claim 15 , further comprising:

a material shredder positioned between the housing inlet and the drum, the material shredder moves between a first position and a second position relative to the housing.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 14, 2023
From: ROBERGE, MARTIN J.
To: CNH INDUSTRIAL CANADA, LTD.
Reel/Frame 062684/0233 →
Continuity (1)
Related Publication 20240269710A1 · Aug 15, 2024
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