Valve
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United States of America Patent
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app pub date -
Sep 8, 2009
filing date -
Dec 5, 2008
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Abstract
A valve arrangement including a valve body and a valve seat each having an opposed surface, the valve arrangement also includes a high-frequency cyclic actuator to move the valve body with respect to the valve seat to bring the opposed surfaces into and out of abutment, characterised in that the opposed surface of at least one of the valve body and the valve seat includes a resiliently displaceable surface.
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