Agricultural seed trench closing systems, methods and apparatus
US10721858B2 · kind B2 · utility
0Cited by
25References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2017 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | Dec 22, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C7/203
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A closing wheel assembly for an agricultural planter row unit. The closing wheel assembly includes a pivot arm having a forward end pivotally mounted to a frame of the planter row unit. A first closing wheel is rotatably supported by the pivot arm about a first axis of rotation. A second closing wheel is rotatably supported by the pivot arm about a second axis of rotation. An actuator applies a force on the pivot arm rearward of the first and second axes of rotation to modify a force between the closing wheels and the soil surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.