US PATENT SUBCLASS 417 / 166
.~.~.~.~ Sequential


Current as of: June, 1999
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417 /   HD   PUMPS

65  DF  ONE FLUID PUMPED BY CONTACT OR ENTRAINMENT WITH ANOTHER {10}
151  DF  .~ Jet {23}
163  DF  .~.~ Successive introduction of motive fluid {6}
165  DF  .~.~.~ Individually controlled motive fluid flows {1}
166.~.~.~.~ Sequential


DEFINITION

Classification: 417/166

(under subclass 165) Apparatus in which the separate and distinct valves are so related that upon actuation first one valve controls its motive fluid flow path and then the other controls its motive fluid flow path in sequence.