Synthetic sling whose component parts have opposing lays
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United States of America Patent
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Apr 19, 2011
Grant Date -
Apr 30, 2009
app pub date -
Apr 11, 2008
filing date -
Oct 31, 2007
priority date (Note) -
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Abstract
A sling for industrial lifting made of a load-bearing core and a cover. The cover protects the plurality of yarns that make-up the core. Each core yarn is made of a number of core threads twisted together. The core yarns are twisted together where the twist is in the same direction as the individual core strands and a different direction than the twist of the cover. The present invention describes the method of twisting the core yarns together by inserting core yarns substantially parallel into a cover that has a twist opposite of each core strand. As the core strands are inserted into the cover, the twists of the individual core yarns interact with the twist of the cove, resulting in the core yarns twisting together.
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