公开(公告)号：US06265039B1

公开(公告)日：2001-07-24

申请号：US09202635

申请日：1998-12-18

申请人： Ian Clive Drinkwater ,  Alan George Ryder ,  Frank James Lowe

发明人： Ian Clive Drinkwater ,  Alan George Ryder ,  Frank James Lowe

IPC分类号： B29D2200

CPC分类号： F16L57/06 ,  B29C61/0658 ,  D03D3/02 ,  F16L47/22 ,  G02B6/443 ,  G02B6/4459 ,  G02B6/4476 ,  Y10T428/1362

摘要： The use of a fabric sheath (2), or other article, on a conduit (1), for example a pipe or flexible hose, to provide abrasion resistance or other forms of protection, for example impact protection or cut-through protection, thereto; and fabric sheaths suitable for such use. A preferred form of circumferentially-heat-shrinkable sheath of woven fabric, capable of use on a conduit, for example to provide impact cushioning and/or abrasion resistance, provides a substantially unobscured outer fabric surface and comprises hoop filaments extending substantially circumferentially around the sheath, at least some of which hoop filaments are heat-shrinkable, and length filaments extending substantially along the sheath, wherein the length filaments are selected either (A) to be sufficiently flexible, at least at temperatures to which they are subjected during heat-shrinking of the sheath in use, for the heat shrinkage of the hoop filaments to crimp the length filaments to an extent (a) producing at least 1%, preferably at least 2%, more preferably at least 5%, longitudinal shrinkage of the sheath in addition to any longitudinal heat shrinkage thereof and/or (b) causing portions of the length filaments either (i) to project outwardly from the shrunken fabric sheath to a maximum distance in excess of the maximum projection distance of the thus-shrunken hoop filaments, or (ii) to increase such excess projection distance if already existing before the heat shrinkage; or (B) to be sufficiently stiff to limit the longitudinal shrinkage due to crimping of the length filaments to less than 10%, preferably less than 5%, more preferably less than 2%, especially less than 1% or substantially zero.

摘要翻译： 使用织物护套（2）或其他物品在导管（1）上，例如管道或柔性软管上，以提供耐磨性或其他形式的保护，例如冲击保护或穿透保护 ; 以及适合这种用途的织物护套。 能够在导管上使用，例如提供冲击缓冲和/或耐磨性的机织织物的周向热收缩护套的优选形式提供了基本上视野不足的外部织物表面，并且包括围绕护套基本周向延伸的环形丝 ，其中至少一些环状长丝是可热收缩的，以及长度长丝基本上沿着护套延伸，其中长度长丝选择（A）至少在热收缩期间经受的温度下具有足够的柔性， 在使用中的护套，为了使长丝的热收缩以使长度细丝卷曲到一定程度（a），另外产生至少1％，优选至少2％，更优选至少5％的纵向收缩率 其任何纵向热收缩和/或（b）使得长度细丝的部分（i）从收缩的织物护套t向外突出 超过如此缩小的环形长丝的最大投影距离的最大距离，或（ii）如果在热收缩之前已经存在，则增加这样的超过投影距离;或（B）足够坚硬以限制纵向收缩 长度长丝的卷曲小于10％，优选小于5％，更优选小于2％，特别是小于1％或基本上为零。