Resilient tires and wheels – Tires – resilient – Patches
Patent
1978-03-22
1980-11-04
Bertsch, Richard A.
Resilient tires and wheels
Tires, resilient
Patches
152355, B60C 1504, B60C 1506, B60C 902
Patent
active
042314097
ABSTRACT:
This invention provides a pneumatic tire for vehicle wheels having a carcass, a tread and a breaker structure. The breaker structure has at least two layers of parallel cords at an angle of 10.degree.-35.degree. and made of a material having a tensile strength of at least 260 kg/mm.sup.2. The cords of one layer are crossed with respect to those of the adjacent layer. The breaker structure also has at least one strip of textile cords made of a material which shrinks in length when heated. The tire also has in each sidewall, a reinforcing element of at least one layer of textile or metal cords inclined with respect to the circumferential lines of the tire and at least two layers of cords parallel to each other in each layer and crossed with respect to those of the adjacent layer.
REFERENCES:
patent: 3480065 (1969-11-01), Verjier
patent: 3500890 (1970-03-01), Boileau
patent: 3853163 (1974-12-01), Mezzanotte
patent: 4029137 (1977-06-01), Suyjam
patent: 4047551 (1977-09-01), Mezzanotte
Bertsch Richard A.
Societa Pneumatici Pirelli S.p.A.
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