Patent ID: 6067908
Filing Date: 2000-05-30
Classification: B05B

Abstract:
A method for keeping a nozzle mouthpiece of a nozzle of a spraying device for a spray moistening device of a rotary printing press clean including:providing a moistening fluid;providing a spray moistening device;providing a nozzle unit in said spray moistening device, said nozzle unit having a moistening fluid receiving chamber and a nozzle mouthpiece;selectively operating said spray moistening device in one of an operational state and a cleaning process;supplying said moistening fluid under pressure to said nozzle mouthpiece through said moistening fluid receiving chamber while said spray moistening device is operating in both said operational state and said cleaning process;providing an ultrasound vibration generator;providing an ultrasound vibration transmitter extending between said ultrasound vibration generator and said nozzle unit;operating said ultrasound vibration generator;using said ultrasound vibration transmitter for ultrasonically activating said moistening fluid supplied to said nozzle mouthpiece only when said spray moistening device is operating in said cleaning process; andusing said ultrasonically activated moistening fluid for cleaning said nozzle mouthpiece only when said spray moistening device is operating in said cleaning process.