Pneumatic tire with band cord modulus higher in side portion...

Details Pneumatic tire with band cord modulus higher in side portion... Pneumatic tire with band cord modulus higher in side portion...

2007-01-23

2007-01-23

Johnstone, Adrienne C. (Department: 1733)

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

C152S531000, C152S533000

Reexamination Certificate

active

11043958

ABSTRACT:
A band (14) of a tire covers a belt (12). The band (14) is formed by a band ply (36). The band ply (36) includes a side portion (38) and a center portion (40). A band cord having a high modulus (Ms) is used for the side portion (38). Typically, a band cord to be a composite of a nylon fiber and an aramid fiber is used for the side portion (38). A band cord having a low modulus (Mc) is used for the center portion (40). Typically, a nylon fiber is used for the band cord of the center portion (40). A ratio (Ms/Mc) is 2.0 to 4.0. A ratio of a width (Ws) of the side portion (38) to a width (Wb) of the band (14) is 5.0% to 20.0%.

REFERENCES:
patent: 5795417 (1998-08-01), Damke et al.
patent: 6058996 (2000-05-01), Suzuki
patent: 6557605 (2003-05-01), Yukawa et al.
patent: 2004/0089392 (2004-05-01), Yukawa et al.
patent: 2005/0016654 (2005-01-01), Yukawa
patent: 0 422 881 (1991-04-01), None
patent: WO-02/102610 (2002-12-01), None

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