Control valve
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United States of America Patent
Stats
-
Feb 24, 1987
Grant Date -
N/A
app pub date -
Jul 18, 1985
filing date -
Jul 19, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A control valve comprising a vertical tubular yoke having a bottom wall, a solenoid mounted on the upper end of the yoke for giving a force of attraction the magnitude of which is in proportion to the value of input current, the solenoid having an operating rod directed downward and movable longitudinally thereof by the force of attraction, a valve body connected to the bottom wall of the yoke, a valve stem vertically movably supported by the valve body and having an upper portion extending upward from the valve body into the yoke, and conversion means housed in the yoke for converting the force of attraction acting on the operating rod to a displacement of the valve stem.
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