US PATENT SUBCLASS 417 / 84
.~.~ Rotary nonexpansible chamber-type generating pump

Current as of: June, 1999
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417 /   HD   PUMPS

65  DF  ONE FLUID PUMPED BY CONTACT OR ENTRAINMENT WITH ANOTHER {10}
76  DF  .~ Jet pump with motive fluid generating pump {4}
84.~.~ Rotary nonexpansible chamber-type generating pump

DEFINITION

Classification: 417/84

(under subclass 76) Apparatus in which the motive fluid generating pump comprises a pumping member which has unidirectional rotary motion about a fixed axis and acts to pump fluid by a centrifugal, centripetal or screw effect.