US PATENT SUBCLASS 141 / 123
.~.~ Combined displacement receptacle and vacuum means

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

115  DF  DRIP PREVENTION BY FLOW REVERSING AND/OR OVERFILL REMOVAL {3}
121  DF  .~ Separate removal station {4}
123.~.~ Combined displacement receptacle and vacuum means

DEFINITION

Classification: 141/123

(under subclass 121) Apparatus in which the removal means comprises a device which forces contents material out of the receiver by its weight or by change in volume, combined with means for establishing subatmospheric pressure on such contents material in said device.