Ropes with enhanced CBOS fatigue life

    公开(公告)号:US12077908B2

    公开(公告)日:2024-09-03

    申请号:US18209557

    申请日:2023-06-14

    Inventor: Forrest Sloan

    Abstract: Disclosed herein are ropes containing bundles of filaments, where each bundle includes at least 70% by volume of liquid crystal polymer filaments, and where at least one bundle includes liquid crystal polymer filaments of at least 10 denier per filament in size. Also disclosed herein are methods of pulling or lifting an object by applying tension to such a rope connected to the object, where the rope is arranged over a sheave or a non-rotating guide surface, and a ratio of a diameter of the sheave or an effective diameter of the non-rotating guide surface, D, to a diameter of the rope, d, is at least 20:1.

    Spliced rope apparatus and method
    10.
    发明授权

    公开(公告)号:US09732468B2

    公开(公告)日:2017-08-15

    申请号:US14382468

    申请日:2013-02-28

    Abstract: A spliced rope apparatus and a method of forming the same are disclosed. The apparatus has a first rope including a first plurality of strands and a second rope including a second plurality of strands. The apparatus also has a splice connecting the ropes and defined by the first and second pluralities of strands. The splice has a spiral section including a first pair having strands of the first plurality of strands that are positioned proximate each other. The first pair extends helically and the strands of the first pair together pass under a plurality of picks defined by the second plurality of strands and together pass over a remainder of the second plurality of strands. The splice also has a tuck section in which at least some of the first plurality of strands extend longitudinally to pass under and over sequential picks defined by the second plurality of strands.

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