US PATENT SUBCLASS 415 / 4.2
.~.~ Vertical runner axis

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

2.1  DF  WITH MEANS FOR CONTROLLING CASING OR FLOW GUIDING MEANS IN RESPONSE TO NATURAL FLUID CURRENT FORCE OR DIRECTION {4}
4.1  DF  .~ Natural fluid current force responsive {2}
4.2.~.~ Vertical runner axis

DEFINITION

Classification: 415/4.2

Vertical runner axis:

(under subclass 4.1) Device wherein the runner's* axis of rotation is generally parallel to the force of gravity acting on the working fluid*.