Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Patent
1994-11-07
1996-06-25
Johnstone, Adrienne C.
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
152539, 152546, 152553, 152554, 152556, B60C 904, B60C 908, B60C 1500, B60C 1506
Patent
active
055291074
ABSTRACT:
A pneumatic radial tire having a tread portion, a pair of axially spaced bead portions with a bead core, a pair of sidewall portions, a carcass having a carcass ply of radially arranged cords extending between the bead portions and turned up around the bead cores to form a main portion and two turned up portions, and a bead apex disposed between the main portion and each turned up portion in each bead portion and extending radially outwardly from the bead core, the carcass cords made of twisted organic fiber filaments, the twist number being more than 5 and less than 30 turn/10 cm.
REFERENCES:
patent: 2273200 (1942-02-01), Hoff
patent: 2895525 (1959-07-01), Lugli
patent: 3245454 (1966-04-01), Lewis
patent: 3722567 (1973-03-01), Delobelle
patent: 3888292 (1975-06-01), Menell et al.
patent: 4024901 (1977-05-01), Poque152553
Johnstone Adrienne C.
Sumitomo Rubber Industries Ltd.
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