US PATENT SUBCLASS 405 / 88
.~.~.~ Center flow

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}
88.~.~.~ Center flow

DEFINITION

Classification: 405/88

Center flow:

(under subclass 87) Method or apparatus wherein a hollow flow regulating member is movably mounted on a submerged takeoff whereby liquid flows in a controllable fashion across the perimeter of and through the hollow member into the takeoff.