Seed tube for an agricultural planter
US7152540B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2005 |
| Grant date | Dec 26, 2006 |
| Priority date | — |
| Expiry date | Aug 19, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S111/903
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A seed tube for an agricultural planter having a rearwardly curving forward wall, a rearwardly curving rearward wall and opposing side walls defining a seed passageway which curves rearwardly from an upper ingress end toward a lower egress end. An aperture is disposed in the forward wall adapted to receive a seed sensor element. An overlap extends over a portion of the aperture. The tube has an upper portion and a lower portion. The forward wall of the lower portion disposed forwardly of the forward wall of the upper portion, such that an interior surface of the forward wall of the lower portion is disposed forwardly of an interior surface of the forward wall of the upper portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.