US PATENT SUBCLASS 141 / 226
.~.~.~.~.~.~ By response to receiver pressure increase

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}
225  DF  .~.~.~.~.~ Air displacement trip means {1}
226.~.~.~.~.~.~ By response to receiver pressure increase

DEFINITION

Classification: 141/226

(under subclass 225) Filling apparatus in which the last mentioned means becomes operative upon an increased pressure condition in the receiver.