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Ultrasonic spraying device

  • US 4,815,661 A
  • Filed: 08/03/1987
  • Issued: 03/28/1989
  • Est. Priority Date: 04/29/1985
  • Status: Expired due to Fees
First Claim
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1. An ultrasonic spraying device, comprising:

  • a body having a front end forming a body outlet;

    a spray nozzle having front and back ends, said back end of the spray nozzle being held inside the body, the front end of the spray nozzle extending forward through the body outlet and forming a nozzle outlet;

    means in fluid communication with the spray nozzle to conduct a liquid to and through the nozzle outlet;

    a vibration generator secured within the body and connected to the back end of the spray nozzle, to generate piezo-electric vibrations and to vibrate the spray nozzle;

    an extension member connected to the front end of the body, extending forward therefrom, and including an inside surface extending around the nozzle outlet and forming an inside, circumferentially extending groove;

    a ring secured in the circumferentially extending groove, and located forward of the nozzle outlet; and

    a liquid permeable diaphragm held between and against the ring and the nozzle outlet to atomize the liquid conducted through the nozzle outlet.

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