US PATENT SUBCLASS 474 / 242
.~.~ Belt has oppositely facing side drive surfaces (e.g., "V-belt", etc.)

Current as of: June, 1999
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474 /   HD   ENDLESS BELT POWER TRANSMISSION SYSTEMS OR COMPONENTS

237  DF  FRICTION DRIVE BELT {14}
240  DF  .~ Including plural interconnected members each having a drive surface facing in a common direction {3}
242.~.~ Belt has oppositely facing side drive surfaces (e.g., "V-belt", etc.) {2}
243  DF  .~.~.~> Surfaces on ball or roller elements
244  DF  .~.~.~> Oppositely facing surfaces are on pair of discrete elements {1}

DEFINITION

Classification: 474/242

Belt has oppositely facing side drive surfaces (e.g., "V-belt", etc.):

(under subclass 240) Subject matter wherein said drive surfaces on said belt* are for intended engagement within a circumferentially extending pulley* groove defined by spaced belt-engaging faces, said belt including plural drive surfaces along one side thereof for intended engagement with a pulley face forming one side of the groove, and said belt also including plural drive surfaces along the opposite side thereof for intended engagement with a pulley face forming the other side of the groove.

SEE OR SEARCH THIS CLASS, SUBCLASS:

238, for a belt structure including plural interconnected and transversely spaced "V-belts."

265, for a "V-belt". [figure]