Patent ID: 8613400

Claim:
A pressurized air assisted, ultrasonic atomizing nozzle assembly comprising: a nozzle body including a gas inlet port; an air cap mounted on the nozzle body, having a discharge orifice in fluid communication with the gas inlet port; an ultrasonic atomizer including an ultrasonic driver and a cannular atomizing stem extending along an axis line from said ultrasonic driver centrally into said air cap, said atomizing stem terminating in an atomizing surface, said cannlar atomizing stem defining a liquid passage for directing liquid to said atomizing surface where liquid is ultrasonically atomized into fine liquid droplets; said ultrasonic atomizer being mounted on said nozzle body such that said atomizing stem extends forwardly from said nozzle body; a ring shaped whirl disc disposed about said atomizing stem defining an inner annular gas chamber between said whirl disc and atomizing stem and an outer annular gas chamber about an outer periphery of said whirl disc; said gas inlet port communicating with said outer annular gas chamber; and said whirl disc having a plurality of angled openings extending there through communicating between said outer gas chamber and said inner gas chamber for directing all gas from said gas inlet port to said inner annular gas chamber for rotation about the atomizing stem in said inner air chamber and direction about the atomizing surface for propelling the fine atomized liquid droplets forwardly of the atomizing surface in a cone shaped spray pattern.