Seed furrow closing apparatus
US8333161B2 · kind B2 · utility
12Cited by
17References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2009 |
| Grant date | Dec 18, 2012 |
| Priority date | — |
| Expiry date | Oct 20, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C5/066
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A seed furrow closing wheel has a generally dish-shaped body defined by a central portion and a notched outer flange portion that circumscribes the central portion and projects obliquely outwardly from the plane thereof. The notched flange portion is configured to present a series of circumferentially spaced, non-radial, obliquely projecting teeth that function to fragment and squeeze together opposite sidewalls of the seed furrow when a pair of the wheels are rolled along opposite sides of the furrow outboard of the furrow itself, crumbling the sidewalls and covering the seeds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.