Patent ID: 8430338
Filing Date: 2013-04-30
Classification: A45D,B05B

Abstract:
1. A spray head configured to spray a cosmetic or dermatological composition on human keratinous material, the spray head comprising: a nozzle body comprising a portion terminating in an opening; an airflow generator configured to blow air through the opening; a transducer for generating ultrasound vibration; and a sonotrode for transmitting the ultrasound vibration from the transducer to an ejection surface for ejecting particles of the composition, the sonotrode comprising a channel for feeding the composition from an inlet of the sonotrode to an outlet of the sonotrode, wherein the outlet is surrounded by a collar having a face defining the ejection surface and that projects out of the opening of the nozzle body by a distance, and wherein the channel has a reduced diameter portion that includes the outlet.