Steel cord
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United States of America Patent
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Apr 9, 1985
Grant Date -
N/A
app pub date -
Feb 3, 1984
filing date -
Feb 10, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A steel cord composed of four material wires of the same diameter twisted together, of which two material wires are stuck together and intertwisted at the center and each of the other two material wires is arranged on both sides of the former two material wires with a certain space left between the former and the latter. The latter two material wires are twisted about the former two material wires in the same twist direction and at the same pitch as the former two material wires into a steel cord. The steel cord thus composed facilitates infiltration of a rubber compound into the central part of the steel cord, ensures perfect adhesion between the rubber compound and the steel cord, checks elongation under a very low load, stabilizes twist construction in the lengthwise direction and improves an anti-fatigue characteristic.
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