US PATENT SUBCLASS 416 / 28
.~.~ Temperature 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}
28.~.~ Temperature responsive control

DEFINITION

Classification: 416/28

(under subclass 27) Apparatus wherein the condition responsive control means is actuated by a means which senses a temperature state or variation.