US PATENT SUBCLASS 74 / 89.19
.~.~.~.~.~ With biasing means

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  DF  .~.~.~.~ Curvilinear rack {1}
89.19.~.~.~.~.~ With biasing means

DEFINITION

Classification: 74/89.19

(under subclass 89.18) Mechanical movement comprising yieldable means which assists the motion of the movement in one direction or the other (e.g., spring, counter weight, etc.).