Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Reexamination Certificate
2005-08-09
2005-08-09
Johnstone, Adrienne C. (Department: 1733)
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
C152S531000, C152S533000
Reexamination Certificate
active
06926053
ABSTRACT:
A pneumatic tire comprises a carcass extending between the bead portions and a band disposed radially outside the carcass in a tread portion and made of at least one cord laid at an angle of not more than 5 degrees with respect to the tire equator, and the band cord is made of steel filaments twisted together so as to have a variable elasticity modulus which has a transitional point from under 1000 kgf/sq.mm to over 1000 kgf/sq.mm at an elongation percentage in a range of from 1% to 5%. Preferably, the average elasticity modulus ELn of the cord from zero elongation to the transitional point is in a range of from 500 to 750 kgf/sq.mm, and the average elasticity modulus EHn of the cord from the transitional point to a breaking point of the cord is in a range of from 1200 to 3000 kgf/sq.mm.
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Derwent patent family data for EP 1 127 718 A2.
Miyazaki Shinichi
Toda Osamu
Yamazaki Kazumi
Johnstone Adrienne C.
Sumitomo Rubber Industries Ltd.
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