Valve position indicating apparatus
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United States of America Patent
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-
Jan 12, 1993
Grant Date -
N/A
app pub date -
Mar 20, 1992
filing date -
Mar 20, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
There is disclosed apparatus for indicating the opened and closed positions of a rotary closure member of a rotary valve in which a drum rotatable within a housing to be mounted on the valve has 'open' and 'closed' indicia thereon movable into positions opposite windows in the wall of the housing in response to rotation of the drum in response to rotation of the closure member.
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