Invention Grant
- Patent Title: Ropes with enhanced CBOS fatigue life
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Application No.: US17382402Application Date: 2021-07-22
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Publication No.: US11713545B2Publication Date: 2023-08-01
- Inventor: Forrest Sloan
- Applicant: KURARAY CO., LTD.
- Applicant Address: JP Kurashiki
- Assignee: KURARAY CO., LTD.
- Current Assignee: KURARAY CO., LTD.
- Current Assignee Address: JP Kurashiki-shi
- Agency: Element IP, PLC
- Main IPC: D07B1/02
- IPC: D07B1/02 ; C08G63/06 ; C08G69/12 ; G01N3/34

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.
Public/Granted literature
- US20220025577A1 Ropes with Enhanced CBOS Fatigue Life Public/Granted day:2022-01-27
Information query