US PATENT SUBCLASS 405 / 95
.~.~.~.~.~ With latch for closed position

Current as of: June, 1999
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405 /   HD   HYDRAULIC AND EARTH ENGINEERING

52  DF  FLUID CONTROL, TREATMENT, OR CONTAINMENT {7}
80  DF  .~ Flow control {7}
87  DF  .~.~ Water gate or adjustable weir {7}
92  DF  .~.~.~ Condition responsive {3}
94  DF  .~.~.~.~ To pressure on pivoted water gate {1}
95.~.~.~.~.~ With latch for closed position

DEFINITION

Classification: 405/95

With latch for closed position:

(under subclass 94) Method or apparatus including a restraining means to retain the water gate in its closed position, wherein the water gate is opened by the pressure of the liquid only after the restraining means is released.