US PATENT SUBCLASS 74 / 502.3
.~.~.~ Including rolling antifriction elements

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

469  DF  CONTROL LEVER AND LINKAGE SYSTEMS {8}
491  DF  .~ Hand operated {4}
500.5  DF  .~.~ Flexible transmitter (e.g., Bowden cable) {6}
502.3.~.~.~ Including rolling antifriction elements

DEFINITION

Classification: 74/502.3

Including rolling antifriction elements:

(under subclass 500.5) Mechanism including a plurality of discrete rotatable elements located between and contacting the flexible element and its surrounding or supporting structure, to eliminate frictional contact between the two.

SEE OR SEARCH CLASS

160, Flexible or Portable Closure, Partition, or Panel,

346, and 347 for cable antifriction means employed with drape or curtain operators.