Agricultural crop spraying apparatus
US6164559A · kind A · utility
Inventor
Key dates
| Filing date | Jun 17, 1999 |
| Grant date | Dec 26, 2000 |
| Priority date | — |
| Expiry date | Jun 17, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01M7/0075
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Agricultural crop spraying apparatus comprising a spray boom made from a space-frame of members comprising laterally and vertically spaced longitudinally extending members joined at intervals by traverse cross-members, with the spray nozzles disposed within the boom framework for protection characterized in that the cross-members of the spray boom frame are positioned above the lowest extremity of the boom framework to allow the spray nozzles to be disposed below the cross-members while still positioning the nozzles within the boom and to allow uninterrupted longitudinal positioning of the spray nozzles. Preferably, the cross-section of the boom is substantially triangular so that the sections of the folded boom arms interfit one with the other. Hinges joining the section of the boom preferably have inclined pivot axes such that the height reached by the boom extremities during folding is less than the arms pivot vertically.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.