Apparatus for delivering a liquid

Fluid sprinkling – spraying – and diffusing – Processes – Including dissolving or entraining in liquid stream

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Details

239 61, 239 74, 239172, B05B 726

Patent

active

049250965

ABSTRACT:
A liquid such as a herbicide is delivered from spray nozzles (4) on a boom (2). The herbicide is supplied from a herbicide container (8) by a pump (18), and is diluted with water supplied from a tank (10) by a pump (12). The speed of the herbicide pump (18) is controlled by control means (22) and is responsive to the travel speed of the apparatus. The volumetric output of the pump (18) is calibrated by supplying the herbicide to a calibration vessel (32) during a test cycle in which the apparatus travels over a predetermined distance. Correction factors can then be input to the control means (22) in order to bring the volumetric output of the pump (18) into line with desired flow rates.

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