US PATENT SUBCLASS 416 / 151
.~ Power derived from impeller shaft

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

147  DF  HAVING POSITIVE MEANS FOR IMPELLER ADJUSTMENT {6}
151.~ Power derived from impeller shaft {1}
152  DF  .~.~> By brake application or release

DEFINITION

Classification: 416/151

(under subclass 47) Apparatus wherein the impeller or working member movement is effected by power from a shaft which directly drives or is driven by the impeller.