Abstract: A stirrer assembly for use with a vessel, such as a keg, having an access opening. The vessel includes a cover that is adapted to close the access opening and has a through-hole therein. A stirrer assembly is adapted to releasably engage the through-hole and to be engaged by a motor. The stirrer assembly includes a driven shaft that extends in to a lower portion of the vessel with a paddle releasably mounted at a distal portion of the driven shaft.

Abstract: A twin-fluid atomized aerial spray system and method of aerial spraying includes flying an atomized spray delivery system with an unmanned aerial system. The atomized spray delivery system includes a first fluid delivery path, a second fluid delivery path and a spray nozzle. The first fluid delivery path has a liquid tank and the second fluid delivery path has a compressed gas tank, wherein the first and second fluid delivery paths deliver respective fluids to the spray nozzle. Liquid from the liquid tank is atomized with compressed gas from the compressed gas tank at the spray nozzle and delivers the atomized spray from the spray nozzle.

Abstract: The present invention provides an apparatus and method particularly well suited for cutting vegetation and applying chemical fluids to the stump efficiently over wide areas, particularly with common mechanical devices such as sickle bar trimmers, rotary mowers, and flail mowers. Furthermore, the chemical fluids are precisely applied to the desired vegetation stumps so that the biomass has low chemical residue and the chemicals does not disturb the soil. Therefore, the biomass is preserved, soil residues are reduced, chemical waste is reduced, undesired vegetation is treated with a correct dosage, and manual labor is dramatically reduced. Thus, the soil residues are reduced and the biomass is preserved for further downstream processes.

Abstract: The present invention provides an apparatus and method particularly well suited for cutting vegetation and applying chemical fluids to the stump efficiently over wide areas, particularly with common mechanical devices such as sickle bar trimmers, rotary mowers, and flail mowers. Furthermore, the chemical fluids are precisely applied to the desired vegetation stumps so that the biomass has low chemical residue and the chemicals does not disturb the soil. Therefore, the biomass is preserved, soil residues are reduced, chemical waste is reduced, undesired vegetation is treated with a correct dosage, and manual labor is dramatically reduced. Thus, the soil residues are reduced and the biomass is preserved for further downstream processes.