Abstract: Disclosed is an ultrasonic spray coating system wherein (1) the surface of the feed blade of the ultrasonic spray head has been modified to add a series shallow channels to redirect the ultrasonic surface wave system that exists on the surface; (2) the internal passageway of the liquid applicator has been modified to add a series of channels to uniformly feed the liquid from the liquid applicator to the spray-forming tip; (3) a positive displacement pump is utilized to deliver the liquid to the spray head at a precise flow rate independent of the associated resistances of the liquid delivery system components; and (4) the gas entrainment system has been improved so as to expand the ultrasonically produced spray uniformly and without pulsations.

Abstract: Disclosed is an ultrasonic spray coating system wherein (1) the surface of the feed blade of the ultrasonic spray head has been modified to add a series shallow channels to redirect the ultrasonic surface wave system that exists on the surface; (2) the internal passageway of the liquid applicator has been modified to add a series of channels to uniformly feed the liquid from the liquid applicator to the spray-forming tip; (3) a positive displacement pump is utilized to deliver the liquid to the spray head at a precise flow rate independent of the associated resistances of the liquid delivery system components; and (4) the gas entrainment system has been improved so as to expand the ultrasonically produced spray uniformly and without pulsations.

Abstract: Disclosed is an ultrasonic spray coating system wherein (1) the surface of the feed blade of the ultrasonic spray head has been modified to add a series shallow channels to redirect the ultrasonic surface wave system that exists on the surface; (2) the internal passageway of the liquid applicator has been modified to add a series of channels to uniformly feed the liquid from the liquid applicator to the spray-forming tip; (3) a positive displacement pump is utilized to deliver the liquid to the spray head at a precise flow rate independent of the associated resistances of the liquid delivery system components; and (4) the output orifice of the primary gas director is extended to impinge the directed gas stream at a position closer to the spray-forming tip.

Abstract: Disclosed is a coating system for the selective application of coatings to substrates to apply a uniform coating to selected areas of the substrate without the need for masking. The system comprises a first coating applicator for coating large areas of the substrate, a second coating applicator for coating small areas of the substrate, a motion and positioning system for both coating applicators and a system controller. Also disclosed is an ultrasonic spray coating system comprising an ultrasonic transducer with spray forming head, integrated fluid delivery device with air and liquid supply passage ways, support brackets and an ultrasonic power generator.

Abstract: Disclosed is an ultrasonic spray coating system comprising an ultrasonic spray head with integrated fluid delivery system (IFDS), which consists of an ultrasonic transducer with a spray forming tip, an ultrasonic generator, an external liquid applicator, a precision liquid delivery system and air directors. The coating liquid is delivered to the spray forming tip on the ultrasonic transducer from an external liquid applicator. The liquid is stored in a pressurized reservoir and fed to the liquid applicator by a precision liquid delivery system. The ultrasonic vibrations of the spray forming tip break up the liquid into small droplets and propel them from the tip in the form of a spray. The spray produced with ultrasonic energy alone is a very narrow “sheet-like” pattern. The width of the spray pattern produced is equal to the width of the spray forming tip (2 mm to 4 mm). Air directors are used to produce air streams to further shape and accelerate the ultrasonically produced spray.

Abstract: Disclosed is a coating system for the selective application of coatings to substrates to apply a uniform coating to selected areas of the substrate without the need for masking. The system comprises a first coating applicator for coating large areas of the substrate, a second coating applicator for coating small areas of the substrate, a motion and positioning system for both coating applicators and a system controller. Also disclosed is an ultrasonic spray coating system comprising an ultrasonic transducer with spray forming head, integrated fluid delivery device with air and liquid supply passage ways, support brackets and an ultrasonic power generator.

Abstract: Disclosed is an ultrasonic spray coating system comprising an ultrasonic spray head with integrated fluid delivery system (IFDS), which consists of an ultrasonic transducer with a spray forming tip, an ultrasonic generator, an external liquid applicator, a precision liquid delivery system and air directors. The coating liquid is delivered to the spray forming tip on the ultrasonic transducer from an external liquid applicator. The liquid is stored in a pressurized reservoir and fed to the liquid applicator by a precision liquid delivery system. The ultrasonic vibrations of the spray forming tip break up the liquid into small droplets and propel them from the tip in the form of a spray. The spray produced with ultrasonic energy alone is a very narrow “sheet-like” pattern. The width of the spray pattern produced is equal to the width of the spray forming tip (2 mm to 4 mm). Air directors are used to produce air streams to further shape and accelerate the ultrasonically produced spray.

Abstract: An ultrasonic spray coating system includes a converter which converts high frequency electrical energy into high frequency mechanical energy thereby producing vibrations. The converter has a resonant frequency. A spray forming head is coupled to the converter and is resonant at the resonant frequency of the converter. The spray forming head has a spray forming tip and concentrates the vibrations of the converter at the spray forming tip. A source of high frequency alternating voltage is electrically connected to the converter and produces a controlled level of electrical energy at an operating frequency of the spray forming head and converter whereby the atomizing surface is vibrated ultrasonically. A liquid supply applicator is in close proximity with the spray forming tip and spaced therefrom. The liquid supply applicator has an output surface having an orifice therein and the output surface is in close proximity with the spray forming tip and spaced therefrom.

Abstract: An ultrasonic spray coating system includes a converter which converts high frequency electrical energy into high frequency mechanical energy thereby producing vibrations. The converter has a resonant frequency. A spray forming head is coupled to the converter and is resonant at the resonant frequency of the converter. The spray forming head has a spray forming tip and concentrates the vibrations of the converter at the spray forming tip. A source of high frequency alternating voltage is electrically connected to the converter and produces a controlled level of electrical energy at an operating frequency of the spray forming head and converter whereby the atomizing surface is vibrated ultrasonically. A liquid supply applicator is in close proximity with the spray forming tip and spaced therefrom. The liquid supply applicator has an output surface having an orifice therein and the output surface is in close proximity with the spray forming tip and spaced therefrom.