US PATENT SUBCLASS 141 / 220
.~.~.~.~.~ Float controlled trip means


Current as of: June, 1999
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141 /   HD   FLUENT MATERIAL HANDLING, WITH RECEIVER OR RECEIVER COACTING MEANS

192  DF  AUTOMATIC CONTROL OF FLOW CUTOFF OR DIVERSION {4}
198  DF  .~ Level or overflow responsive {3}
206  DF  .~.~ Manually initiated valve with both manual and level cut-off controls {5}
217  DF  .~.~.~ Diverse controls for single valve {1}
218  DF  .~.~.~.~ Valve latched open {3}
220.~.~.~.~.~ Float controlled trip means {2}
221  DF  .~.~.~.~.~.~> With sensitivity or level adjustment {1}
223  DF  .~.~.~.~.~.~> With spring means biasing valve to close {1}


DEFINITION

Classification: 141/220

(under subclass 218) Filling apparatus in which the holding means is rendered ineffective by a buoyant means.