US PATENT SUBCLASS 416 / 30
.~.~ Electrical control or sensing means

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

25  DF  INTERRELATED CONTROLS FOR IMPELLER AND DRIVE MEANS {2}
27  DF  .~ Pitch adjustment and throttle regulation with condition sensing means {3}
30.~.~ Electrical control or sensing means

DEFINITION

Classification: 416/30

(under subclass 27) Apparatus wherein the control means and the condition sensing means, or both, comprise, at least in part, electrical apparatus.