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Wrapped yarns for use in ropes having predetermined surface characteristics
   
Document Number
US Patent 7367176
Issued Date
May 6, 2008
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Abstract
A rope and method of making the same. The rope is adapted to engage a structural member and comprises a plurality of yarns. At least one of the yarns comprises a first set of first fibers and a second set of fibers. The first and second sets of fibers are combined using a false twisting process such that the second fibers do not extend the length of the rope and the second fibers indirectly bear tension loads on the rope. The first fibers substantially determine load bearing properties of the rope. The second fibers substantially determine abrasion resistance properties and a coefficient of friction of the rope. 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.
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Number of Claims:
22
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Published
May 6, 2008
Application Number
11/599,817
Filed
November 14, 2006
US Classification
57/237  
Int'l Classification
D02G   3/02   (20060101)  
Examiner
Parent Case
RELATED APPLICATIONS This application is a Continuation of U.S. Ser. No. 10/903,130 filed Jul. 30, 2004, now U.S. Pat. No. 7,134,267, which claims benefit of U.S. Provisional Application Ser. No. 60/530,132, which was filed on Dec. 16, 2003. The contents of all related applications listed above are incorporated herein by reference.
USPTO Field of Search
57/210   57/237   57/244  
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