Wrapped yarns for use in ropes having predetermined surface characteristics
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United States of America Patent
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Jun 15, 2010
Grant Date -
N/A
app pub date -
May 6, 2008
filing date -
Dec 16, 2003
priority date (Note) -
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Abstract
A blended yarn and method of making the same. The blended yarn is formed into a rope adapted to engage structural member and comprises a plurality of first fibers and a plurality of second fibers. The abrasion resistance properties of the second fibers are greater than abrasion resistance properties of the first fibers. A coefficient of friction of the second fibers is less than a coefficient of friction of the first fibers. The first fibers extend along the length of the blended yarn and the second fibers do not extend along the length of the blended yarn. A plurality of blended yarns are combined to form the rope such that, when the rope contacts the structural member, the second fibers of the blended yarn are primarily in contact with the structural member and the first set of fibers substantially bear tension loads on the rope.
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