Batch seed coating apparatus
US9392739B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 2014 |
| Grant date | Jul 19, 2016 |
| Priority date | — |
| Expiry date | Jun 25, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C1/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A batch-type particulate treating apparatus (10) includes an upright bin or hopper (20) equipped with a central, rotatable lifting augur (68) having a bored shaft (70) and helical flighting (80, 82). Coating liquid passes through the bore (72) of shaft (70), and is delivered through ejectors (86, 88) mounted on the augur flighting (80, 82). A pneumatic assembly (16) serves to direct pressurized air upwardly through a clearance (96) between the augur base and the adjacent inner surfaces of hopper (20). In operation, liquid coating material is ejected into the particulates during rotation of the augur (68) and operation of the pneumatic assembly (16), in order to uniformly and efficiently coat the particulates. The apparatus (10) is particularly designed for treating of seeds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.