ROUND SLING AND METHOD FOR MANUFACTURING SAME
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United States of America Patent
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Issued Date -
Nov 10, 2011
app pub date -
Jan 20, 2010
filing date -
Jan 20, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention relates to a round sling, and more particularly, to a round sling and to a method for manufacturing same in which threads are twisted according to a predetermined fracture, coated with a conductor, and extrusion-molded together with a core tube. The thus-manufacturing round sling can be determined to be undamaged and used when the round sling conducts electric currents, and prevented from being used when the round sling does not conducts electric current and the round sling is determined to be damaged at a level higher than a preset damage level. Thus, the round sling of the present invention prevents negligent accidents.
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