US PATENT SUBCLASS 417 / 178
.~.~ Selectively usable flow confining members (e.g., nozzles, combining tubes, etc.)

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}
178.~.~ Selectively usable flow confining members (e.g., nozzles, combining tubes, etc.)

DEFINITION

Classification: 417/178

(under subclass 151) Apparatus in which there is provided within the apparatus a plurality of alternate flow confining

segments (e.g., nozzles, combining tubes, etc.) and means to permit one of the segments to be adjusted into use position to the exclusion of another from use position.