US PATENT SUBCLASS 415 / 148
SELECTIVELY ADJUSTABLE VANE OR WORKING FLUID CONTROL MEANS

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

148SELECTIVELY ADJUSTABLE VANE OR WORKING FLUID CONTROL MEANS {3}
149.1  DF  .~> Separate means upstream and downstream of blade set {1}
150  DF  .~> Runner, shaft, or separate motor operated
151  DF  .~> Upstream of runner {7}

DEFINITION

Classification: 415/148

(under the class definition) Apparatus comprising a vane* or other control means which may be selectively moved to different positions to vary the direction or amount of working fluid* flow.

(1) Note. This group of subclasses will accept a claim which must be classified in this class, even though the runner* is not recited.

SEE OR SEARCH THIS CLASS, SUBCLASS:

8, for a device comprising a driven runner* immersed in a fluid and an adjustable vane* in an unconfined fluid stream for selectively guiding the working fluid*.

53.3, for a device having a cross flow runner* and further including selectively adjustable vane* or working fluid* control means.

SEE OR SEARCH CLASS

138, Pipes and Tubular Conduits, 37+, for a fluid conduit having baffles or other means for changing the direction or rate of flow of fluid in the conduit.

251, Valves and Valve Actuation, appropriate subclasses for fluid flow controlling valves, particularly

118+, for fluid handling devices with baffles or other material guide structure.

416, Fluid Reaction Surfaces (i.e., Impellers), appropriate subclasses, for a runner* and continuously moving vanes* or deflectors with no fixed means to direct or confine the working fluid*.