US PATENT SUBCLASS 474 / 238
.~ Including plural interconnected and transversely spaced pairs of oppositely facing side-drive surfaces (e.g., plural "V-belts", etc.)


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474 /   HD   ENDLESS BELT POWER TRANSMISSION SYSTEMS OR COMPONENTS

237  DF  FRICTION DRIVE BELT {14}
238.~ Including plural interconnected and transversely spaced pairs of oppositely facing side-drive surfaces (e.g., plural "V-belts", etc.)


DEFINITION

Classification: 474/238

Including plural interconnected and transversely spaced pairs of oppositely facing side-drive surfaces (e.g., plural "V-belts", etc.):

(under subclass 237) Subject matter wherein the belt* includes plural pairs of driving surfaces, each pair including surfaces facing in opposite directions for intended engagement within a circumferentially extending pulley* groove defined by spaced belt-engaging faces, first and second pairs of surfaces being interconnected with each other, and said second pair of surfaces being spaced from said first pair of surfaces in a direction parallel to the longitudinal extent of the axis of the pulley with which the belt is intended to be engaged.

SEE OR SEARCH THIS CLASS, SUBCLASS:

242+, for a "V-belt" wherein longitudinally spaced drive faces are on separate members.

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