US PATENT SUBCLASS 416 / 122
.~ Intersecting or interdigitated paths of operation

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

120  DF  PLURAL IMPELLERS HAVING RELATIVE MOVEMENT OR INDEPENDENT SUPPORTS {5}
122.~ Intersecting or interdigitated paths of operation

DEFINITION

Classification: 416/122

(under subclass 120) Apparatus wherein the impellers are so supported that during operation the moving members describe intersecting or alternately overlapping paths.

SEE OR SEARCH THIS CLASS, SUBCLASS:

77, for working members having similar paths of operation and wherein the impeller is operator supported and manually actuated.