DEVICE FOR HEATING AND/OR FROTHING A BEVERAGE
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United States of America Patent
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app pub date -
Jan 27, 2015
filing date -
Jan 23, 2007
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Abstract
A device for heating and/or frothing a beverage includes a first duct connectable to an upstream steam source and to downstream mixing means arranged to introduce and mix at least steam into said beverage, said first duct having a first valve configured to be opened and closed and to enable or prevent steam flow into the duct, and a second duct connectable to the upstream steam source and to said downstream mixing means, said second duct having a second valve configured to be opened and closed and to enable or prevent steam flow into the duct, wherein a first one of said two ducts comprises a Venturi assembly configured to operate by Venturi effect in order to mix air with said steam in said first one of said two ducts when a second one of said two ducts is closed.
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