Pneumatic tire with side reinforcement rubber layer and...

Details Pneumatic tire with side reinforcement rubber layer and... Pneumatic tire with side reinforcement rubber layer and...

2004-03-24

2008-10-21

Johnstone, Adrienne C (Department: 1791)

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

C152S532000

Reexamination Certificate

active

07438103

ABSTRACT:
A pneumatic tire that improves riding comfort under normal driving conditions, and improves durability under run-flat conditions, while inhibiting a weight increase. This pneumatic tire includes a carcass layer and belt layer. The carcass layer contains two or more carcass plies constituted of organic fiber cords. The belt layer contains at least two belt plies, each arranged radially outwards from the carcass layer of the tire in a tread part. The tread part includes a tread reinforcement rubber layer that is located between the radially outer carcass ply and the radially inner belt ply. Each side wall part includes a side reinforcement rubber layer having a crescent-shaped cross-section, located inwards from the axially inner carcass ply. At least one of the carcass plies constituting the carcass layer is folded back about bead cores respectively of bead parts.

REFERENCES:
patent: 6142204 (2000-11-01), Omoteda et al.
patent: 6701986 (2004-03-01), Tanaka
patent: 1 022 162 (2000-07-01), None
patent: 2001018611 (2001-01-01), None
patent: 2002012004 (2002-01-01), None
JP-2002-12004-A abstract, Jan. 15, 2002, Sumitomo Rubber Industries, Ltd.
JP-10-151917-A abstract, Jun. 9, 1998, Sumitomo Rubber Ind., Ltd.
International Search Report Jun. 22, 2004.

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