PRESSURE REGULATING VALVE
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United States of America Patent
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Issued Date -
Sep 29, 2016
app pub date -
Mar 15, 2016
filing date -
Mar 26, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A pressure regulating valve includes a piston in a pressure regulating chamber, a valve element axially movable together with the piston, a valve chamber in which an end portion of the valve element is placed, a resinous valve seat which the valve element is brought into contact with or separated from, a coil spring urging the piston in a direction to move the valve element away from the valve seat, and a body member accommodating the valve element and the valve seat. The valve element has an axially extending hollow cylindrical shape. When moved away from the valve seat, the valve element allows communication between the valve chamber and the pressure regulating chamber. The valve seat is arranged to be axially movable. An adjusting screw is provided to move the valve seat for adjusting a contact position with the valve element from outside.
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