US PATENT SUBCLASS 416 / 193 A
.~.~.~ Root platforms

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}
189  DF  .~ Axially extending shroud ring or casing {4}
193 R  DF  .~.~ Spaced inwardly of impeller periphery {1}
193 A.~.~.~ Root platforms

Unofficial Alpha Subclasses: R A

DEFINITION

Classification: 416/193

(under subclass 189) Apparatus wherein the flow directing surface is spaced inwardly of the impeller periphery, as such resulting in an inner and an outer blade or series of blades arranged with reference to the rotation axis of the hub or shaft.

SEE OR SEARCH CLASS

415, Rotary Kinetic Fluid Motors or Pumps,

77+, for a rotary kinetic fluid motor or pump in which the runner has blades extending inwardly and outwardly from a rotating annulus.