US PATENT SUBCLASS 405 / 102
.~.~.~.~.~.~ Collapsible


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}
99  DF  .~.~.~ Swinging {1}
100  DF  .~.~.~.~ About horizontal axis {1}
101  DF  .~.~.~.~.~ Overflow {1}
102.~.~.~.~.~.~ Collapsible


DEFINITION

Classification: 405/102

Collapsible:

(under subclass 101) Method or apparatus wherein the water gate is provided with a support member extending from the water gate to a point longitudinally spaced therefrom on the bed of the flow path which gate and support contiguously fold downwardly onto the bed when the gate is opened.