Spot sprayer for tall weeds
US5086582A · kind A · utility
8Cited by
4References
6Claims
0Family size
Inventor
Key dates
| Filing date | Dec 13, 1990 |
| Grant date | Feb 11, 1992 |
| Priority date | — |
| Expiry date | Dec 13, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01M7/0089
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A spot sprayer for tall weeds in short crops is provided and consists of a housing affixed to a mechanized spray rig, a tank containing a liquid herbicide therein carried on the housing, a pump connected to the tank, a discharge tube extending from the pump, a spray nozzle at the distal end of the discharge tube and a mechanism carried on the housing for sensing the tall weeds in the short crops, so as to allow the pump to transfer a predetermined amount of the liquid herbicide from the tank through the discharge tube and exit the spray nozzle to only spray the tall weeds and kill them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.