Capsule sensing system
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United States of America Patent
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Jul 19, 2016
Grant Date -
Apr 25, 2013
app pub date -
Jun 23, 2011
filing date -
Jun 28, 2010
priority date (Note) -
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Abstract
A brewing unit (1) of a beverage preparation machine has: a seat (11) for receiving a capsule (2) having an electrically conductive material (21, 22, 23, 24); and a capsule sensing electric circuit with first and second electric connectors (A, B). The first electric connector (A) and the second electric connector (B) are electrically connected through the electrically conductive material of the capsule (2) when the capsule is present in the seat (11) and electrically disconnected when the capsule is not in the seat so as to close and interrupt, respectively, the capsule sensing electric circuit (A, Aa, a, B, Bb, b, abc).
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