Patents
US 12376527 B2: Concave with adjustable openings
- Granted
- 2025-08-05
- Filed
- 2024-05-16 application 18666139
- Type
- Utility · 21 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A concave section for a harvester includes a concave body having an upstream side, a downstream side, a leading end and a trailing end. The concave body defines an arcuate crop engagement face facing radially inwardly. A plurality of crop passage openings are defined through the arcuate crop engagement face. A cover is configured to at least partially cover at least some of the crop passage openings. The cover is carried by the concave body and is movable thereon between at least two different positions to adjust a degree of openness of at least some of the crop passage openings.
Source: PVGPATDIS, file of 2026-04-10 (ipg250805.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Kondex Corporation 25 patents | US company or organization | Lomira, WI | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Andrew J. Theisen | Fond du Lac, WI | 8 | PVGPATDIS, file of 2026-04-10 | |
| Keith A. Johnson | West Bend, WI | 23 | PVGPATDIS, file of 2026-04-10 | |
| Neal J. Stoffel | Campbellsport, WI | 18 | PVGPATDIS, file of 2026-04-10 | |
| Joseph W. Schaffer | Colgate, WI | 4 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| A01F | Processing of harvested produce; hay or straw presses; devices for storing agricultural or horticultural produce | A01F12/26 | PVGPATDIS, file of 2026-04-10 |
| A01D | Harvesting; mowing | A01D69/06 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2024-05-16 | Assignment Assignment of assignor's interest | JOHNSON, KEITH A. signed 2019-05-15 SCHAFFER, JOSEPH W., SR. signed 2019-05-15 STOFFEL, NEAL J. signed 2019-05-15 THEISEN, ANDREW J. signed 2019-05-15 | KONDEX CORPORATION LOMIRA, WI | 67436/250 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.