US PATENT SUBCLASS 74 / 89.18
.~.~.~.~ Curvilinear rack

Current as of: June, 1999
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74 /   HD   MACHINE ELEMENT OR MECHANISM

*  DD  MECHANICAL MOVEMENTS {15}
89  DF  .~ Reciprocating or oscillating to or from alternating rotary {6}
89.16  DF  .~.~ Including spur gear {1}
89.17  DF  .~.~.~ With rack {1}
89.18.~.~.~.~ Curvilinear rack {1}
89.19  DF  .~.~.~.~.~> With biasing means

DEFINITION

Classification: 74/89.18

(under subclass 89.17) Mechanical movement wherein the teeth or recesses lie in a curved line.