Abstract: A control system for a high-speed rotary washer spraying system designed particularly for plastic returnable bottles automatically regulates each process of the wash spraying system, namely, sequentially feeding bottles from an infeed conveyor means, inverting them by a worm/inverter means, receiving and simultaneously rotating each bottle in an inverted position through a plurality of washing, neutralizing and sanitizing treatment zones, and inverting each bottle to its original neck-up orientation for further processing. During the entire process, a programmable logic controller maintains, manages, and controls all pumps, valves, solenoids, and drive motor speeds as required by the process, and also provides for monitoring and adjusting fluid levels, alkalinity/acidity concentrations, and temperatures of the wash and neutralizing solutions.

Abstract: In an automatic bottle washing machine, a nozzle spray system for spraying an internal bottom surface of a bottle or container that is rotatable about its central vertical axis. The nozzle spray system includes a nozzle body having a centralized bore for receiving pressurized fluid, a plurality of discharge orifices located in a staggered, spaced apart pattern on the surface of the nozzle body, and a plurality of elongated microbores to connect a respective one of the plurality of discharge orifices to the centralized bore. When the nozzle body is positioned within an invertedly positioned bottle, cleaning fluid is discharged from the plurality of discharge orifices in well focused jets toward adjacent regions of the internal bottom surface of the bottle.