Patents
US 11234353 B2: Actuator assembly
- Granted
- 2022-02-01
- Filed
- 2020-08-17 application 16995094
- Type
- Utility · 15 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A soil penetrating apparatus having an automatic tool (e.g., aerator tine) depth control system and method. The system includes an actuator that sets and controls tine depth, a sensor that monitors tine depth, and a controller that controls the actuator in response to the sensor. In some embodiments, the actuator is a hydraulic actuator, wherein once tine depth is set, flow to the actuator is bypassed. A relief may be provided to allow the tines to lift to a shallower depth temporarily when soil hardness exceeds a threshold. The system may then automatically return the tines to the pre-selected depth once soil conditions permit.
Source: PVGPATDIS, file of 2026-04-10 (ipg220201.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| EXMARK MANUFACTURING COMPANY INCORPORATED 69 patents | US company or organization | Beatrice, NE | Exmark Manufacturing Company Incorporated State business registration EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Stanton L. Mapson | Lincoln, NE | 2 | PVGPATDIS, file of 2026-04-10 | |
| Alex W. Buhr | Filley, NE | 5 | PVGPATDIS, file of 2026-04-10 | |
| Justin L. Pryor | Beatrice, NE | 7 | PVGPATDIS, file of 2026-04-10 | |
| Daniel G. Jameson | Roca, NE | 4 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| A01B | Soil working in agriculture or forestry; parts, details, or accessories of agricultural machines or implements, in general | A01B45/02 | 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 |
|---|---|---|---|---|---|
| 2021-12-13 | Assignment Assignment of assignor's interest | BUHR, ALEX W. signed 2018-04-23 PRYOR, JUSTIN L. signed 2018-04-23 JAMESON, DANIEL G. signed 2018-05-01 MAPSON, STANTON L. signed 2018-05-01 | EXMARK MANUFACTURING COMPANY, INCORPORATED BEATRICE, NE | 58367/779 | 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.