Electronic liquid application rate monitoring system
US4220998A · kind A · utility
Inventor
Key dates
| Filing date | Apr 24, 1978 |
| Grant date | Sep 2, 1980 |
| Priority date | — |
| Expiry date | Apr 24, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01M7/0089
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
There is disclosed a monitoring system for monitoring the rate at which a liquid such as fertilizer or insecticide or herbicide is dispensed by spraying from a moving vehicle. The system determines and displays an indication of the application rate in gallons per acre or liters per hectare using straightforward computations from inputs representing the outputs of sensors for vehicle velocity, width of spray pattern, and liquid flow rate. Visual and/or audible indicators are also provided to warn the operator when the actual application rate differs from the desired application rate by more than a predetermined permissable error factor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.