US PATENT SUBCLASS 474 / 239
.~ Having drive surface on helically coiled wire or cord

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

237  DF  FRICTION DRIVE BELT {14}
239.~ Having drive surface on helically coiled wire or cord

DEFINITION

Classification: 474/239

Having drive surface on helically coiled wire or cord:

(under subclass 237) Subject matter wherein the drive surface is formed as an integral part of an elongated strand helically wound about an axis so that the external surface of the belt has sequential ridges formed by sequential turns of the helix.

SEE OR SEARCH THIS CLASS, SUBCLASS:

272, for a belt having a drive surface formed of metal. [figure]