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US 2022/0030771 A1Published application
Partially-unlouvered sieve mechanism
AssigneeDeere & Company
InventorsJeffrey R. Walter, Kevin P. Hurley, Michael T. Meschke, Yogesh Chande, Kelli Martin
Life of this patent
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Abstract
An exemplary sieve mechanism is configured for separating grain from chaff. The sieve mechanism generally includes a frame and a louvered region including a plurality of louvers mounted to the frame. The sieve mechanism further includes and an unlouvered region lacking louvers such that a gap is defined adjacent the louvered region.
Claims20
A sieve mechanism for separating grain from chaff in a cleaning system, the sieve mechanism comprising:
- a frame;
- a louvered region comprising a plurality of louvers mounted to the frame;
- and
- an unlouvered region lacking louvers such that a gap is defined adjacent the louvered region.
1 more element
A cleaning system for separating grain from chaff, the cleaning system comprising:
- a sieve assembly comprising a sieve mechanism, the sieve mechanism comprising:
- a sieve mechanism frame;
- a louvered region comprising a plurality of louvers mounted to the frame;
- and
- an unlouvered region lacking louvers such that at least one gap is defined within the sieve mechanism frame;
- a collection area positioned below the sieve mechanism;
- and
- a grain auger extending into the collection area, the grain auger operable to drive grain from the collection area to a grain bin.
5 more elements
A method, comprising:
- providing a partially-unlouvered sieve mechanism comprising:
- a frame;
- a louvered region comprising a plurality of louvers mounted to the frame;
- and
- an unlouvered region lacking louvers;
- sifting a mixture of grain and chaff using the partially-unlouvered sieve mechanism, thereby allowing grain to fall through the partially-unlouvered sieve mechanism while retaining chaff above the partially-unlouvered sieve mechanism.
3 more elements
Dependencies are inferred from the claim text.