Apparatus and method for direct application of treatment liquid to growing vegetation
US4735013A · kind A · utility
Inventors
Key dates
| Filing date | Apr 21, 1986 |
| Grant date | Apr 5, 1988 |
| Priority date | — |
| Expiry date | Apr 21, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01M21/043
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An applicator is mounted to a transverse boom carried by a tractor and moved through a field at such a height as to directly contact target vegetation above a selected level, and avoid application of treating liquid to any shorter, desirable vegetation. The applicator includes an outlet manifold, a plurality of receivers connected to an inlet manifold, a respective plurality of generally vertically oriented, transversally spaced non-porous applicator rods each extending between the outlet manifold and a respective receiver, an elevated reservoir for treating liquid, and a pump for recirculating back to the reservoir excess treating liquid which has flowed down outsides of the rods and into the receivers without having been brushed-off onto vegetation contacted by the rods. The outlet manifold and receivers are provided with filters, and each receiver is provided with a trash shield, all for preventing clogging and for facilitating clean-out of the treating liquid flow path. Each applicator rod at its upper end is grooved in a way that facilitates spreading of the treating liquid on the rod while minimizing spillage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.