Seed firmer
US9839178B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2015 |
| Grant date | Dec 12, 2017 |
| Priority date | — |
| Expiry date | Nov 27, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01B61/046
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A seed firmer for pressing seeds into soil during planting. The seed firmer includes a mount for attachment to a row unit of a planting machine. An arm defines a ground-facing surface having at least one point of contact with the ground, including a rearmost ground contact point with respect to a direction of forward travel during planting operation. The ground-facing surface has a transition section directly trailing a rearmost ground contact point, the transition section can extending upwardly from the rearmost ground contact point with a radius no less than 25 mm. Also, in some constructions the rearmost section of the ground-facing surface defines a ratio of horizontal distance to vertical height that is no less than 1.2:1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.