Steel cord for the reinforcement of a rubber article and tire

Details Steel cord for the reinforcement of a rubber article and tire Steel cord for the reinforcement of a rubber article and tire

2005-03-08

2005-03-08

Copenheaver, Blaine (Department: 1733)

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

C057S211000, C057S214000, C057S236000, C057S237000, C057S902000

Reexamination Certificate

active

06863103

ABSTRACT:
A steel cord having a strand construction formed by twisting a plurality of sheath strands each formed by twisting plural filaments around a core strand formed by twisting plural filaments is provided. At least one of the core strand and the sheath strands has a construction of twisting one or more sheath layers each made of plural filaments around a core made of one or plural filaments, and a diameter of a filament constituting an outermost sheath layer is made larger than that of a filament constituting at least one layer located inside thereof, whereby precedent breakage in a part of the filaments is avoided to improve the durability of the steel cord.

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