Cap-and-base type pneumatic tires

Resilient tires and wheels – Tires – resilient – Anti-skid devices

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152209R, B60C 1100

Patent

active

054291640

ABSTRACT:
A pneumatic tire including a tread portion provided with a foamed rubber layer made of a foamed rubber and an outer rubber layer made of a non-foamed rubber and arranged radially outwardly of the foamed rubber layer to contact roads. The radially thickness of the outer rubber layer is gradually increased from one end of the tread portion to the other end.

REFERENCES:
patent: 3486545 (1969-12-01), Niclas et al.
patent: 3853164 (1974-12-01), Mirtain
patent: 5109902 (1992-05-01), Kobayashi
Patent Abstracts of Japan, vol. 12, No. 448 (M-768) 24 Nov. 1988.

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