US PATENT SUBCLASS 405 / 97
.~.~.~.~.~ Having separate float chamber

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}
96  DF  .~.~.~.~ Float {1}
97.~.~.~.~.~ Having separate float chamber

DEFINITION

Classification: 405/97

Having separate float chamber:

(under subclass 96) Method or apparatus wherein the buoyant member is positioned within a container which is distinct from but in fluid communication with the flow path.