US PATENT SUBCLASS 415 / 56.2
.~.~ Vertical runner shaft

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

52.1  DF  WITH MEANS FOR RE-ENTRY OF WORKING FLUID TO BLADE SET (E.G., RE-ENTRY TYPE DEVICE, PASSAGE, ETC.) {11}
56.1  DF  .~ Pump priming means {5}
56.2.~.~ Vertical runner shaft

DEFINITION

Classification: 415/56.2

Vertical runner shaft:

(under subclass 56.1) Device comprising an axis about which the runner blade* or blade row rotates, which axis is generally parallel to the force of gravity acting on the working fluid.