Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Patent
1991-07-30
1995-07-18
Johnstone, Adrienne C.
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
152539, 152541, 152543, 152546, 152552, 152554, B60C 908, B60C 1500, B60C 1506
Patent
active
054332575
ABSTRACT:
The bead durability of the heavy duty pneumatic radial tire for truck and bus is improved by arranging a rubber stock composed of three rubbers A, B and C each having particular properties between a carcass ply and its turnup portion in the bead portion and/or rendering the turnup portion of the carcass ply in the bead portion into a particular arrangement.
REFERENCES:
patent: 3709276 (1973-01-01), Montague
patent: 3921693 (1975-11-01), Suzuki et al.
patent: 4705091 (1987-11-01), Iuchi
patent: 5056575 (1991-10-01), Yamaguchi et al.
Bamba Fumio
Kishinami Shigehito
Ueda Hiroshi
Yamaguchi Hiroshi
Bridgestone Corporation
Johnstone Adrienne C.
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