US PATENT SUBCLASS 415 / 149.4
.~.~.~ Plural, selectively adjustable, alternating vane assemblies and blade rows (A,B,A,B)

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

148  DF  SELECTIVELY ADJUSTABLE VANE OR WORKING FLUID CONTROL MEANS {3}
149.1  DF  .~ Separate means upstream and downstream of blade set {1}
149.2  DF  .~.~ Including axial flow blade set {2}
149.4.~.~.~ Plural, selectively adjustable, alternating vane assemblies and blade rows (A,B,A,B)

DEFINITION

Classification: 415/149.4

Plural, selectively adjustable, alternating vane assemblies and axial blade rows (A, B, A, B):

(under subclass 149.2) Device comprising (a) at least two rows of such (axial flow) working member blades* which rows contact the working fluid* sequentially and (b) at least two rows of such (selectively adjustable) static partition members (vanes*). The blade (A) and static partition member (B) rows are configured to contact the working fluid by turns ("A, B, A, B" or "B, A, B, A") as the working fluid passes through the device.

(1) Note. The working member blade rows need not be claimed for inclusion in this subclass provided it is understood that the rows are present in the described configuration.

SEE OR SEARCH THIS CLASS, SUBCLASS:

199.5, for plural, serial, axial flow blade sets with one or more nonselectively adjustable intermediate stationary flow diverters.