US PATENT SUBCLASS 416 / 164
.~.~ Reciprocating sleeve or collar on or rod in 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}
159  DF  .~ Power or manual actuator on non-rotatable part {5}
164.~.~ Reciprocating sleeve or collar on or rod in impeller shaft {4}
165  DF  .~.~.~> Reciprocated by coaxial screw
166  DF  .~.~.~> Rack-pinion connection to working member
167  DF  .~.~.~> Pin-slot or cam-slot connection to working member
168 R  DF  .~.~.~> Link connection to working member {1}

DEFINITION

Classification: 416/164

(under subclass 159) Apparatus comprising a sleeve, collar or rod on or in a shaft which directly drives or is driven by the impeller and is reciprocated relative thereto to effect the movement.