US PATENT SUBCLASS 305 / 173
.~.~.~.~.~ Including sprocket wheel or roller guide lug or projection

Current as of: June, 1999
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305 /   HD   WHEEL SUBSTITUTES FOR LAND VEHICLES

157  DF  ENDLESS BELT HAVING NONMETALLIC TRACK OR TREAD {5}
165  DF  .~ Track formed of endless flexible belt {6}
167  DF  .~.~ With metallic embedded reinforcement {4}
170  DF  .~.~.~ Reinforcement is endless {2}
171  DF  .~.~.~.~ Including core bar reinforcement {2}
173.~.~.~.~.~ Including sprocket wheel or roller guide lug or projection {1}
174  DF  .~.~.~.~.~.~> Plural lugs or projections {1}

DEFINITION

Classification: 305/173

Including sprocket wheel or roller guide lug or projection:

(under subclass 171) Apparatus including an integral piece of uniform cross section having an integral protrusion serving both for directing the motion of the track on the wheel or roller and for bracing the track against transverse movement. [figure] [caption]A - Rubber endless track; B - Core bar; C - Core bar wing; D - Endless embedded reinforcement; E - Projection; F, G - Traveling surface; H - Traveling surface