US PATENT SUBCLASS 74 / 89.22
.~.~.~ With pulley

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}
89.2  DD  .~.~ Including flexible drive connector (e.g., belt, chain, strand, etc.) {2}
89.22.~.~.~ With pulley

DEFINITION

Classification: 74/89.22

(under subclass 89.2) Mechanical movement including a sheave or wheel with a grooved rim for receiving and frictionally cooperating with the flexible drive connector in driving or driven relationship.