US PATENT SUBCLASS 416 / 166
.~.~.~ Rack-pinion connection to working member

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}
159  DF  .~ Power or manual actuator on non-rotatable part {5}
164  DF  .~.~ Reciprocating sleeve or collar on or rod in impeller shaft {4}
166.~.~.~ Rack-pinion connection to working member

DEFINITION

Classification: 416/166

(under subclass 164) Apparatus wherein the adjusting movement is effected, at least in part, by a rack-pinion connection intermediate the reciprocating member and the working member.

(1) Note. The reciprocating member may comprise either component of the rack-pinion connection.