Convertible pinch wheel closing system for agricultural planter
US9686900B2 · kind B2 · utility
5Cited by
38References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2015 |
| Grant date | Jun 27, 2017 |
| Priority date | — |
| Expiry date | Sep 2, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C7/205
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An agricultural planting apparatus includes a chassis, and a row unit having a unit body carried by the chassis. The unit body includes a metering device, at least one furrowing disc, a biasing element selected from at least one of the following: an extension spring, a compression spring, and a cylinder. A pair of pinch wheels are also carried by the unit body and includes an axle assembly pivotally movable relative to the unit body and connected to the biasing element. The axle assembly is configured to readily connect to at least one biasing element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.