US PATENT SUBCLASS 415 / 72
.~ Extending along runner axis (i.e., axial flow)

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

71  DF  RUNNER HAS SPIRALLY ARRANGED BLADE OR FLUID PASSAGE {1}
72.~ Extending along runner axis (i.e., axial flow) {3}
73  DF  .~.~> Fluid conducting passage
74  DF  .~.~> With additional impingement means in fluid flow path
75  DF  .~.~> Motor runner

DEFINITION

Classification: 415/72

(under subclass 71) Apparatus in which the blade* or conduit coils around the runner* axis while advancing in a direction axially of the runner*.

SEE OR SEARCH THIS CLASS, SUBCLASS:

168.3, for a device including means for handling working fluid* leakage through a seal between a runner* or shaft* and a static part which means comprises a screw-type pumping seal.