AIR VENT
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United States of America Patent
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app pub date -
Sep 25, 2014
filing date -
Oct 9, 2013
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Abstract
An air vent is described, having a housing with an air discharge opening, a first connection to an air supply channel and a continuous flow channel. The flow channel is curved at least at two opposite sections such that the cross-section of the flow channel increases toward the air discharge opening, and the at least two sections (26; 28) have openings (30, 32, 34), each of which opens into a chamber located behind the sections. Each chamber has a second connection, separate from the first connection, for supplying or removing air so as to generate an overpressure and/or vacuum.
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