US PATENT SUBCLASS 474 / 154
.~.~ Belt has spherical or hemispherical drive faces

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

152  DF  POSITIVE DRIVE PULLEY OR GUIDE ROLL {6}
153  DF  .~ With particular belt {2}
154.~.~ Belt has spherical or hemispherical drive faces

DEFINITION

Classification: 474/154

Belt has spherical or hemispherical drive faces:

(under subclass 153) Subject matter wherein spaced surfaces along the length of the belt* have an approximate shape of a ball or a hemisphere, said surfaces being received in corresponding recesses defined by the pulley* or guide roll* ridges for driving engagement between the ridges and said surfaces.

SEE OR SEARCH THIS CLASS, SUBCLASS:

203, for a belt, per se, having spherical or hemispherical drive faces. [figure]