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Oral hygiene appliance

  • US 4,141,352 A
  • Filed: 09/29/1976
  • Issued: 02/27/1979
  • Est. Priority Date: 10/04/1975
  • Status: Expired due to Term
First Claim
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1. In an oral hygiene appliance, a combination comprising a liquid reservoir;

  • a nozzle;

    a pump having means for drawing liquid from said reservoir and for delivering spurts of liquid to said nozzle;

    prime mover means for driving said pump, said prime mover means comprising a multi-pole electromechanical oscillator including an oscillatory armature and means for connecting said poles to a source of alternating current;

    means for regulating the amplitude of oscillations of said armature; and

    shutoff valve means installed between said reservoir and said pump and having a valve element movable between open and closed positions, said regulating means comprising a device which is movable to and from a predetermined position in which said source is disconnected from said poles and means for moving said valve element to said closed position in response to movement of said device to said predetermined position.

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