Spray head including a sonotrode with a composition feed channel passing therethrough
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United States of America Patent
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Apr 30, 2013
Grant Date -
Aug 13, 2009
app pub date -
Feb 12, 2009
filing date -
Feb 13, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A spray head for spraying a cosmetic or dermatological composition, in particular for application to the human body, may include a sonotrode for transmitting ultrasound vibration from a transducer to an ejection surface for ejecting particles of composition, the sonotrode including a channel for feeding the composition to the ejection surface. The channel may present a narrow portion between a composition inlet into the sonotrode and the composition outlet to the ejection surface.
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