Seed metering wheel assembly
US9038861B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 2013 |
| Grant date | May 26, 2015 |
| Priority date | — |
| Expiry date | Jun 10, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D88/54
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An improved seed metering wheel assembly is provided to deliver a substantially constant flow of seed to a downstream treating device or the like, without any substantial surging of seeds. The seed metering wheel assembly includes an axially rotatable metering wheel having a plurality of strategically sized and arranged seed metering openings therethrough, arranged in circular arrays of differently sized metering openings. In another embodiment, the seed metering wheel includes a central hub section and an outermost rib, with a series of ribs between the hub section and rim, which lie along respective non-diameter chords. Incoming seed is delivered from a seed hopper outlet by gravitation to the metering wheel, which preferably provides a substantially constant open area while preventing wholly unobstructed flow of seeds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.