US PATENT SUBCLASS 416 / 58
.~.~ Continuous impeller rotation

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

54  DF  OPERATED BY ART DEVICE {4}
56  DF  .~ Runner supported rocking device {2}
58.~.~ Continuous impeller rotation

DEFINITION

Classification: 416/58

(under subclass 56) Apparatus wherein rocking of the device effects an uninterrupted, unidirectional, rotary movement of the impeller.