Valve assembly
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United States of America Patent
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Apr 11, 2017
Grant Date -
Sep 15, 2016
app pub date -
Jun 3, 2014
filing date -
Jun 3, 2013
priority date (Note) -
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Abstract
The present invention relates to a valve assembly and, more particularly, to a valve assembly which has a simple configuration to return a valve from an open or closed position to an initially-set position when the supply of electric power to a drive motor which controls the open ratio of the valve is shut off.
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