Crest gate operating system
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United States of America Patent
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-
Jul 23, 1996
Grant Date -
N/A
app pub date -
Mar 2, 1992
filing date -
Mar 2, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A crest gate has movable panels controlled in position by inflatable bladders. Air pressure to the bladders or from the bladders is provided to a control system that automatically regulates panel position. Air is bubbled out of a line that is normally below the water level behind the dam and crest gate panels. An actuator assembly is coupled to a valve for selectively venting the bladders. An elastomeric tire is used to create a positioning effect on the valve such that the control system maintains a precise water level. The gate configuration is improved to resist higher loads.
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