US PATENT SUBCLASS 415 / 199.3
.~.~.~.~ Including spirally configurated vane(s)

Current as of: June, 1999
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415 /   HD   ROTARY KINETIC FLUID MOTORS OR PUMPS

182.1  DF  WORKING FLUID PASSAGE OR DISTRIBUTING MEANS ASSOCIATED WITH RUNNER (E.G., CASING, ETC.) {24}
198.1  DF  .~ Plural rigidly related blade sets {2}
199.1  DF  .~.~ Including serial radial flow blade sets and intermediate stationary flow diverter(s) {1}
199.2  DF  .~.~.~ Wherein the diverter includes divider vane(s) between the blade sets {1}
199.3.~.~.~.~ Including spirally configurated vane(s)

DEFINITION

Classification: 415/199.3

(under subclass 199.2) Apparatus wherein a cross section of the channel forming vanes* taken in a plane perpendicular to the runner* axis forms a shape that, at least in part, includes a curved line that extends around the runner* axis at a radius that continually increases or decreases relative to the runner* axis.