US PATENT SUBCLASS 137 / 190
.~.~.~.~.~.~.~ Sinking or bucket type float

Current as of: June, 1999
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137 /   HD   FLUID HANDLING

154  DF  DIVERSE FLUID CONTAINING PRESSURE SYSTEMS {7}
171  DF  .~ Fluid separating traps or vents {5}
177  DF  .~.~ Discriminating outlet for liquid {4}
183  DF  .~.~.~ With fluid responsive valve {3}
187  DF  .~.~.~.~ Level responsive {2}
188  DF  .~.~.~.~.~ Weight or pressure {1}
189  DF  .~.~.~.~.~.~ Gravitating vessel {1}
190.~.~.~.~.~.~.~ Sinking or bucket type float {1}
191  DF  .~.~.~.~.~.~.~>.~ Servo-control

DEFINITION

Classification: 137/190

(under subclass 189) Separating traps wherein the vessel is an open-topped float which floats in liquid and sinks when filled with liquid.

SEE OR SEARCH THIS CLASS, SUBCLASS:

404, for liquid level responsive or maintaining systems controlled by a sinking or bucket type float, and see the search notes thereto.