Automatic liquid fertilizer rate system
US6748884B1 · kind B1 · utility
46Cited by
10References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2003 |
| Grant date | Jun 15, 2004 |
| Priority date | — |
| Expiry date | Jun 3, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C23/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A fertilizer system that employs an independent hydraulic motor and variable speed pump to deliver the selected application rate from the convenience of the operator's cab. The application rate can be changed while planting without changing seed population and the application rate can be controlled sectionally as well. The system may additionally be used in combination with more sophisticated multi-functional control systems that read maps and use GPS technology to control the entire preparation and planting operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.