US PATENT SUBCLASS 405 / 93
.~.~.~.~ To weight of liquid separated from a main body

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}
93.~.~.~.~ To weight of liquid separated from a main body

DEFINITION

Classification: 405/93

To weight of liquid separated from a main body:

(under subclass 92) Method or apparatus wherein the water gate has associated therewith which receives liquid therein from the body of liquid controlled by the water gate which means responds to the weight of the received liquid to control the position of the gate.