US PATENT SUBCLASS 474 / 250
.~.~ Grooves transversely extending on belt surface

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

237  DF  FRICTION DRIVE BELT {14}
249  DF  .~ Including groove, openings or pockets formed in belt surface and arranged along entire length of belt (e.g., for flexibility, air escape, etc.) {2}
250.~.~ Grooves transversely extending on belt surface {1}
251  DF  .~.~.~> And additional groove on opposite surface

DEFINITION

Classification: 474/250

Grooves transversely extending on belt surface:

(under subclass 249) Subject matter wherein at least one exposed face of said component has plural grooves formed therein spaced along the length of the belt*, and said grooves extend in a direction substantially perpendicular to the longitudinal extent of the belt. [figure]