US PATENT SUBCLASS 417 / 168
.~.~.~ One motive fluid flow surrounds nozzle tube of another

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}
168.~.~.~ One motive fluid flow surrounds nozzle tube of another

DEFINITION

Classification: 417/168

(under subclass 163) Apparatus in which one of the motive fluid streams is confined to a conduit terminating in a nozzle and the other motive fluid stream is directed around the circumference of the conduit at the point at which it entrains pumped fluid.

SEE OR SEARCH THIS CLASS, SUBCLASS:

154, for vapor condensation vacuum diffusion-type pumps with reverse flow jets from a vertical stack rising from a motive fluid generator.