ULTRASONIC NEBULIZER WITH CONTROLLED MIST OUTPUT
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United States of America Patent
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Issued Date -
Jun 18, 2015
app pub date -
Oct 27, 2014
filing date -
Dec 18, 2013
priority date (Note) -
Abandoned
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Abstract
An ultrasonic nebulizer includes a piezoelectric element that vibrates responsive to a drive signal having an alternating voltage. A nebulizing layer that may be a passive resonator is bonded to a first surface of the piezoelectric element and has an outer surface that transforms a liquid into a mist responsive to vibration of the piezoelectric element. A heat sink pad is in thermal contact with a heat sink and the passive resonator to dissipate heat from the piezoelectric element. The surface of the passive resonator may be roughened to guide flow of liquid.
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