Broadcast spreading top dresser
US6508419B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2000 |
| Grant date | Jan 21, 2003 |
| Priority date | — |
| Expiry date | Nov 9, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C19/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A top dresser (10) includes a spinner assembly (40) removably connected by clips (44) to a cross beam (20) of the frame (12) mounting a hopper (30). The first and second sides (36) of the hopper (30) slope downwardly and inwardly to a conveyor (140) formed by sheeting (70) in the form of an endless belt having a relatively smooth outer surface. The valve (84) for the hydraulic motor (164) of the conveyor (140) is in series downstream of the valve (78) for the hydraulic motors (56) for the spinners (54) of the spinner assembly (40). Thus, it is not possible to mistakenly run the conveyor (140) without the spinners (54) operating. Therefore, the top dresser (10) is able to spread extremely minimal amounts of material evenly and without clumping or bunching.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.