US PATENT SUBCLASS 141 / 127
.~.~ Double acting or plural pumps

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}
126  DF  .~ Simultaneous filling and removing {1}
127.~.~ Double acting or plural pumps

DEFINITION

Classification: 141/127

(under subclass 126) Apparatus in which simultaneous filling and removing is accomplished by plural fluid flow causing devices or by a fluid flow device which when acting in one direction causes filling and when acting in the opposite direction causes removal of contents material.