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Liquid expulsion from an orifice

  • US 9,451,354 B2
  • Filed: 05/12/2014
  • Issued: 09/20/2016
  • Est. Priority Date: 05/12/2014
  • Status: Active Grant
First Claim
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1. An acoustic module, comprising:

  • an acoustic element;

    a cavity acoustically coupled to the acoustic element;

    a first conductive element configured to generate a first surface charge on a first region of an interior surface of the cavity; and

    a second conductive element configured to generate a second surface charge on a second region of the interior surface of the cavity,wherein the first and second charge on the first and second regions of the interior surfaces of the cavity may be selectively applied to facilitate movement of a liquid held within the cavity.

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