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    • 4. 发明申请
    • ABRASION PROTECTION
    • 磨损保护
    • WO1997048940A1
    • 1997-12-24
    • PCT/GB1997001544
    • 1997-06-06
    • RAYCHEM LIMITEDDRINKWATER, Ian, CliveLOWE, Frank, JamesRYDER, Alan, George
    • RAYCHEM LIMITED
    • F16L47/00
    • F16L57/06B29C61/0658D03D3/02F16L47/22G02B6/443G02B6/4459G02B6/4476Y10T428/1362
    • 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 sheath 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.
    • 使用织物护套(2)或其他制品在导管(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 ; 和适用于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,其中长度长丝选自(A)至少在热收缩期间经受的温度下具有足够的柔韧性 在使用时,为了使长丝细丝的热收缩达到一定程度(a),产生鞘的纵向收缩率的至少1%,优选至少2%,更优选至少5% 除了其任何纵向热收缩和/或(b)使得长度细丝的部分(i)从收缩的织物纱布向外突出 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,则增加这种多余的投影距离; 或(B)足够刚性以将长度长丝卷曲的纵向收缩率限制在小于10%,优选小于5%,更优选小于2%,特别是小于1%或基本上为零。
    • 5. 发明申请
    • TUBULAR SEALING ARTICLE
    • 管状密封件
    • WO1997046817A1
    • 1997-12-11
    • PCT/GB1997001545
    • 1997-06-06
    • RAYCHEM LIMITEDCARPENTER, Michael, JohnKLEIN, StéphaneLOWE, Frank, JamesGAY, Alan, RogerSUTHERLAND, Alistair, Alfred, Preston
    • RAYCHEM LIMITED
    • F16J15/06
    • F16J15/064F16J15/027
    • An article for use as an environmental sealing gasket comprising an elongate body of gel sealant (30, Fig. 3), a solid, porous, or tubular elongate carrier (31), and an elongate tubular casing (32), wherein the casing has interstices and either (a) the casing (32) encloses the gel (30) on the carrier (31) and the gel is selected to be capable of protrusion through the casing interstices when the article is under compression and of retraction from such protrusion when the compression is removed; or (b) the casing is on the carrier and the body of gel at least partly encloses the casing on the carrier and is selected to be capable of deformation to expose enclosed portions of the casing when the article is under compression and of recovering to re-enclose the exposed portions when the compression is removed.
    • 一种用作环境密封垫片的制品,包括凝胶密封剂(30,图3)的细长体,固体,多孔或管状细长载体(31)和细长管状壳体(32),其中壳体具有 间隙和(a)壳体(32)将凝胶(30)包封在载体(31)上,并且当制品处于压缩状态并且从该突出部收回时,凝胶被选择为能够突出穿过套管间隙 压缩被去除; 或(b)壳体在载体上,并且凝胶体至少部分地将壳体包围在载体上并且被选择为能够变形以在制品处于压缩状态时暴露于外壳的封闭部分并且恢复到再次 - 当压缩被去除时 - 关闭暴露的部分。