Steel cord for reinforcing rubber
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United States of America Patent
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May 5, 1992
Grant Date -
N/A
app pub date -
Mar 12, 1990
filing date -
Mar 15, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved steel cord for reinforcing rubber is formed of three steel filaments, one having a smaller diameter than the other two, twisted together. The thinner filament is twisted with the two filaments at least partially in contact with them and with the same pitch. When the steel cord is cut at both ends, the thinner filament is retracted inwardly from the ends of the two filaments. This improves the penetration of rubber into the cord and prevents edge separation.
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