US PATENT SUBCLASS 415 / 78
.~ With means selecting only one blade row for working fluid flow

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

77  DF  AXIAL FLOW RUNNER WITH BLADES EXTENDING RADIALLY INWARD AND OUTWARD FROM COMMON ANNULUS {2}
78.~ With means selecting only one blade row for working fluid flow

DEFINITION

Classification: 415/78

(under subclass 77) Apparatus comprising a means to chose at will the single row of inwardly or outwardly extending blades* for traverse of the working fluid*.

(1) Note. Typically, included herein are turbines, the rotation of which is reversed by sending the working fluid* through one or another of concentric blade* rows.

SEE OR SEARCH THIS CLASS, SUBCLASS:

61, for plural runners* supported for relative motion or on separate shafts* with means for selecting the runner* to which working fluid* is passed.