US PATENT SUBCLASS 152 / 544
.~.~.~ Bead contour for engagement with mounting rims (e.g., lips, ribs or grooves)

Current as of: June, 1999
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152 /   HD   RESILIENT TIRES AND WHEELS

151  DF  TIRES, RESILIENT {14}
450  DF  .~ Pneumatic tire or inner tube {23}
539  DF  .~.~ Characterized by the structure of the bead portion of the tire {8}
544.~.~.~ Bead contour for engagement with mounting rims (e.g., lips, ribs or grooves)

DEFINITION

Classification: 152/544

Bead contour for engagement with mounting rims (e.g., lips, ribs or grooves):

(under subclass 539) Subject matter wherein the hub or rim contacting portion of the tire contains additional friction enhancing means to insure better grip between said rim contacting portion of the tire and the rim.

(1) Note. The additional friction enhancing means result from the overall outer contour of the rim contacting portion of the tire.