US PATENT SUBCLASS 416 / 25
INTERRELATED CONTROLS FOR IMPELLER AND DRIVE MEANS

Current as of: June, 1999
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416 /   HD   FLUID REACTION SURFACES (I.E., IMPELLERS)

25INTERRELATED CONTROLS FOR IMPELLER AND DRIVE MEANS {2}
26  DF  .~> Pitch adjustment related to drive brake or clutch operation
27  DF  .~> Pitch adjustment and throttle regulation with condition sensing means {3}

DEFINITION

Classification: 416/25

(under the class definition) Apparatus wherein control means for operation or adjustment of an impeller* means and control means for operation or adjustment of means for driving or being driven by the impeller are so correlated that actuation of one control means causes actuation of the other or said control means comprise, at least in part, structure common to both operations or adjustments.