Position indicator apparatus for rising stem valve
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United States of America Patent
Stats
-
Oct 20, 1992
Grant Date -
N/A
app pub date -
Nov 8, 1991
filing date -
Nov 8, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A position indicator apparatus is provided for rising stem valves. The position indicator apparatus includes a switch having a rotatable switch post. The switch is operatively connected to a power source and to a signal, such that a circuit to the signal is selectively completed or broken depending upon the rotational orientation of the switch post. The switch is rigidly mounted in a selected position relative to a valve housing. A connecting beam extends from the switch post to the valve stem such that movement of the valve stem into or out of the valve housing causes a rotation of the switch post to complete the circuit to the signal for certain positions of the valve stem and to break the circuit to the signal for other positions of the valve stem.
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