US PATENT SUBCLASS 416 / 29
.~.~ Drive engine intake air responsive control


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}
29.~.~ Drive engine intake air responsive control


DEFINITION

Classification: 416/29

(under subclass 27) Apparatus wherein the condition responsive control means is actuated by a means which senses a state or variation of the intake air flow to a drive engine for the impeller.