Spray nozzle having a forward surface on which liquid films

Claim 1

SPRAY APPARATUS COMPRISING A LONGITUDINALLY EXTENDING NOZZLE BODY HAVING A MAIN CHAMBER AND A FIRST LONGITUDINALLY EXTENDING PASSAGE THAT AT LEAST AT ITS FORWARD END IS OF A SUBSTANTIAL SMALLER TRANSVERSE CROSS SECTIONAL AREA OPENING TO SAID MAIN CHAMBER FOR PLACING THE MAIN CHAMBER IN FLUID COMMUNICATION WITH THE ATMOSHPERE, A FIRST DISCHARGE TUBE SUBASSEMBLY INCLUDING A DISCHARGE TUBE MOUNTING MEMBER HAVING A MAIN CHAMBER AND EXTENDED INTO THE NOZZLE BODY MAIN CHAMBER AND AN ELONGATED TUBE HAVING ONE END JOINED TO SAID MOUNTING MEMBER TO OPEN INTO THE MOUNTING MEMBER MAIN CHAMBER, EXTEND SUBSTANTIALLY FORWARDLY OF SAID NOZZLE BODY MAIN CHAMBER AND BEING ELONGATED IN THE DIRECTION OF ELONGATION OF SAID PASSAGE, SAID TUBE AND MOUNTING MEMBER HAVING A LIQUID PASSAGEWAY THEREIN AND SAID SUBASSEMBLY AND NOZZLE BODY COOPERATIVELY PROVIDING A FLUID PASSAGEWAY THAT DISCHARGES TO THE ATMOSPHERE, THROUGH SAID PASSAGE FOR TRANSPORTING THE LIQUID FLOWING FROM SAID LIQUID PASSAGEWAY, MEANS CONNECTED TO THE DISCHARGING TUBE SUBASSEMBLY FOR FORCING LIQUID UNDER A POSITIVE PRESSURE INTO THE MOUNTING MEMBER AND THENCE THROUGH SAID LIQUID PASSAGEWAY, MEANS CONNECTED TO THE NOZZLE BODY FOR FORCING A CARRIER GAS INTO THE NOZZLE BODY MAIN CHAMBER AND THENCE THROUGH SAID FLUID PASSAGEWAY AND SAID TUBE HAVING AN OUTER END PORTION FORMING A SURFACE PORTION EXTENDING FORWARDLY OF SAID NOZZLE BODY ON WHICH THE LIQUID FLOWING THROUGH THE REST OF THE TUBE FILMS AND LOCATED TO HAVE SAID GAS ON OPPOSITE TRANSVERSE SIDES OF SAID SURFACE PORTION TO DISPERSE THE FILMED LIQUID INTO A FINE SPRAY.