Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Reexamination Certificate
2007-11-06
2007-11-06
Johnstone, Adrienne C. (Department: 1733)
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
Reexamination Certificate
active
10568340
ABSTRACT:
This invention relates to a pneumatic tire for a motorcycle improving a cornering stability, and more particularly to a pneumatic tire for a motorcycle comprising a pair of bead portions2, a carcass1wound around a bead core3embedded in the respective bead portion, a tread portion arranged on an outside of a crown portion of the carcass and a pair of sidewall portions extending inward from both ends of the tread portion in a radial direction of the tire, in which the bead core3is a cable bead and a geometric second moment coefficient Σ(π/64×d4) of the bead core3(wherein d is a diameter of each filament constituting the bead core) satisfies an equation of 0.50<Σ(π/64×d4)<1.50.
REFERENCES:
patent: 3736974 (1973-06-01), LeJeune
patent: 4057091 (1977-11-01), Gardner et al.
patent: 34-8805 (1959-06-01), None
patent: 6-22004 (1994-03-01), None
patent: 11-321247 (1999-11-01), None
patent: 2002-254910 (2002-09-01), None
Bridgestone Corporation
Johnstone Adrienne C.
Sughrue Mion Pllc.
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