US PATENT SUBCLASS 416 / 183
.~.~ Circumferentially or radially angulated or discontinuous blades or sections (e.g., stepped, etc.)

Current as of: June, 1999
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416 /   HD   FLUID REACTION SURFACES (I.E., IMPELLERS)

179  DF  ROTOR HAVING FLOW CONFINING OR DEFLECTING WEB, SHROUD OR CONTINUOUS PASSAGE {4}
182  DF  .~ Radially extending web or end plate {3}
183.~.~ Circumferentially or radially angulated or discontinuous blades or sections (e.g., stepped, etc.)

DEFINITION

Classification: 416/183

(under subclass 182) Apparatus comprising blades extending axially from the transverse flow directing surface which are (1) discontinuous in radial or circumferential extent or (2) formed of intersecting, angular portions.