US PATENT SUBCLASS 474 / 168
.~ Including plural, coaxial, circumferential belt-receiving grooves

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

166  DF  FRICTION DRIVE PULLEY OR GUIDE ROLL {11}
168.~ Including plural, coaxial, circumferential belt-receiving grooves {2}
169  DF  .~.~> Plural grooves of different circumferences
170  DF  .~.~> Plural grooves formed in unitary member

DEFINITION

Classification: 474/168

Including plural, coaxial, circumferential belt-receiving grooves:

(under subclass 166) Subject matter wherein two or more pairs of belt*-engaging surfaces are provided for rotation about a common axis, each of said pairs including circumferentially extending surfaces facing each other in an axial direction to drivingly engage a belt received in the space defined by such surfaces.

(1) Note. A pair or belt-engaging surfaces as defined above may be separate surfaces on distinct members or may be radially extending surface portions of a common surface. [figure]