Nurse receiver and header for air seeders
US6267067A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 1999 |
| Grant date | Jul 31, 2001 |
| Priority date | — |
| Expiry date | Nov 4, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S111/90
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A nurse receiver header for an agricultural planting implement is cooperable with a nurse mechanism that conveys a stream of seeds entrained in an air stream from a central hopper. A receiver is positioned at the planting mechanism to receive the seeds entrained in the air stream and accumulate a supply of the seeds for utilization by the associated planting mechanism. The receiver header may include a vent for dissipating the air stream when receiving the seeds for distribution to the receiver. The vent is provided with a hood to keep contaminants from entering the vent and passing into the planting mechanism. The receiver header is positioned so that an appropriate supply of seeds for the planting mechanism fills the tube between the receiver header and the receiver including the vent, resulting in a decreased volume of discharged air for the air stream and a diminished ability for the nurse mechanism to convey seeds. The receiver header can be configured to service multiple receivers. The receiver header is mounted at an angle inclined to the vertical when in an operating position such that the receiver header can be rotated through an angle in the range of 70-110 degrees to a t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.