US PATENT SUBCLASS 417 / 76
.~ Jet pump with motive fluid 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.~ Jet pump with motive fluid generating pump {4}
77  DF  .~.~> Recirculation of separated motive fluid
78  DF  .~.~> Entrainment at exit of impeller
79  DF  .~.~> Jet delivers back to generating pump {1}
84  DF  .~.~> Rotary nonexpansible chamber-type generating pump

DEFINITION

Classification: 417/76

(under subclass 65) Apparatus including a jet pump and an additional pump which includes a mechanical impelling member (e.g., piston, rotor, etc.) to generate the motive fluid supplied to the jet pump.

(1) Note. For the definition of a jet pump see this class subclass 151.

(2) Note. The jet pump may have the sole disclosed use of priming the motive fluid generating pump.