US PATENT SUBCLASS 210 / 123
.~.~ Controls valve

Current as of: June, 1999
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210 /   HD   LIQUID PURIFICATION OR SEPARATION

97  DF  FLOW, FLUID PRESSURE OR MATERIAL LEVEL, RESPONSIVE {14}
121  DF  .~ Float {2}
123.~.~ Controls valve {5}
124  DF  .~.~.~> Controls flow between two separators
125  DF  .~.~.~> Separator between float and valve
126  DF  .~.~.~> Float in separate rehabilitating fluid tank
127  DF  .~.~.~> Additional fluid inlet control
128  DF  .~.~.~> Float in receptacle other than that of separator {1}

DEFINITION

Classification: 210/123

(under subclass 121) Apparatus in which the float controls valve means.