Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Reexamination Certificate
2004-05-18
2008-10-28
Johnstone, Adrienne C (Department: 1791)
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
C152S531000, C152S532000, C152S533000, C152S538000
Reexamination Certificate
active
07441576
ABSTRACT:
A pneumatic tire comprises a carcass1comprised of one or more carcass plies toroidally extending between a pair of bead portions, a tread rubber2arranged at an outer peripheral side of a crown portion of the carcass1,a belt5arranged between the tread rubber2and the carcass1and comprised of two belt layers3, 4,cords10of which layers being crossed with each other and extending in an inclination angle of 45-80° with respect to a circumferential direction of the tire, and one or more circumferential strengthening layers6, 7arranged at an inner peripheral side of the belt5and containing wavy or zigzag cords9extended substantially in the circumferential direction of the tire, in which a width L of a belt layer7located at the inner peripheral side is made larger than a width M of the circumferential strengthening layer and a width N of a belt layer located at the outer peripheral side is made smaller than the width M of the circumferential strengthening layer.
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Bridgestone Corporation
Johnstone Adrienne C
Sughrue & Mion, PLLC
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