Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Reexamination Certificate
2007-10-16
2007-10-16
Johnstone, Adrienne C. (Department: 1733)
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
C152S516000, C152S522000, C152S523000, C152S550000, C152S555000
Reexamination Certificate
active
11131318
ABSTRACT:
A tire includes at least one carcass-type reinforcement structure anchored on each side in a bead, each bead being extended radially towards the outside by a sidewall having at least one substantially resilient circumferential cord disposed in the substantially median portion of the sidewalls. The carcass-type reinforcement structure includes a ply of carcass cords extending from the bead to the crown within a sidewall. The carcass cords are arranged in such a way that, in a sidewall zone restricted to the median portion of the sidewall, the carcass cords exhibit different respective axial positions, so as to form around the circumference a succession of substantially regular undulations defining an undulating circumferential profile. Outside of the sidewall zone, the carcass cords of the ply do not form undulations. At reduced pressure the undulations tend to straighten out and rigidify the sidewall in such a way as to be able to bear the load.
REFERENCES:
patent: 3240250 (1966-03-01), Frazier
patent: 3400746 (1968-09-01), Heimovics, Jr.
patent: 3500888 (1970-03-01), Boileau
patent: 5616198 (1997-04-01), Suzuki et al.
patent: 5660656 (1997-08-01), Herbelleau et al.
patent: 2003/0145935 (2003-08-01), Prost et al.
patent: 2005/0236086 (2005-10-01), Lopez
patent: 02234812 (1990-09-01), None
patent: WO 02/30688 (2002-04-01), None
Abstract of JP 10-44721 A, Feb. 17, 1998.
Buchanan & Ingersoll & Rooney PC
Johnstone Adrienne C.
Michelin Recherche Et Technique S.A.
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