Fluid sprinkling – spraying – and diffusing – With mobile tank-type supply means – Aircraft carried
Patent
1981-08-10
1983-08-09
Love, John J.
Fluid sprinkling, spraying, and diffusing
With mobile tank-type supply means
Aircraft carried
239170, 239710, B05B 300
Patent
active
043974210
ABSTRACT:
A liquid chemical spraying apparatus is described whereby liquid chemical may be applied to a field by utilizing a center pivot irrigation system. The center pivot irrigation system comprises a water supply pipe which is movable about a center pivot and which is supported by a plurality of spaced-apart drive towers for propelling the supply pipe around the center pivot. Each of the drive towers includes an electric drive which is responsive to an alignment control to maintain the supply pipe in an aligned condition as it travels about the center pivot. The spraying apparatus is vertically movably supported from the supply pipe or the truss system supporting the pipe. The spraying apparatus comprises a main supply line which is in communication with a source of liquid chemical. First and second applicator lines are in fluid communication with the main supply line. A control valve is positioned between the main supply line and the applicator lines at each of the drive towers and is operatively connected to the alignment control for the drive tower so that chemical will be supplied from the main supply line to the applicator lines only when the associated drive tower is being driven. Manually operated selector valves are positioned between the main supply line control valve and the applicator lines so that chemical may be selectively supplied to either or both of the applicator lines. A plurality of spaced-apart spray nozzles are provided on each of the applicator lines for spraying the chemical on the area beneath the irrigation system. The source of chemical, main supply line and applicator lines are fluidly isolated from the water in the water supply pipe to prevent contamination of the source of water. The chemical may be sprayed on to the area in conjunction with or apart from the application of water to the field.
REFERENCES:
patent: 3648930 (1972-03-01), Brown et al.
patent: 3826431 (1974-07-01), Telge
Love John J.
McCarthy Mary
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