Method of manufacturing valve, and valve produced by the method
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United States of America Patent
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Apr 30, 2013
Grant Date -
Mar 18, 2010
app pub date -
Apr 23, 2008
filing date -
Apr 26, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A valve has a valve body provided on its inner peripheral surface with a seat ring, a stem arranged to extend in a direction substantially perpendicular to the axis of a flow passage defined in the valve body, and a valve element rotatably supported through a bush attached to the stem, and opens or closes the flow passage by pressing or separating the valve element against or from the seat ring in the valve body in accordance with the rotation of the valve element. The valve body is molded after the valve element, the seat ring, the stem, and the bush are placed in predetermined positions in a mold.
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