US PATENT SUBCLASS 305 / 174
.~.~.~.~.~.~ Plural lugs or projections


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  DF  .~.~.~.~.~ Including sprocket wheel or roller guide lug or projection {1}
174.~.~.~.~.~.~ Plural lugs or projections {1}
175  DF  .~.~.~.~.~.~.~> Including additional reinforcement for sprocket wheel


DEFINITION

Classification: 305/174

Plural lugs or projections:

(under subclass 173) Apparatus including at least a pair of central protrusions formed upright in opposed relationship at predetermined intervals in the central area of each core bar. [figure] [caption]A - Rubber belt; B - Cove bar; C, D - Pair of central projections; E - Recess; F - Sprocket tooth hole; G - Steel cord reinforcement