Telecommunication optical cable for gas pipeline applications having built-in leakage detecting device
    1.
    发明授权
    Telecommunication optical cable for gas pipeline applications having built-in leakage detecting device 失效
    用于气体管道应用的电信光缆,具有内置的漏电检测装置

    公开(公告)号:US07706640B2

    公开(公告)日:2010-04-27

    申请号:US10576606

    申请日:2003-10-23

    IPC分类号: G02B6/00 G01J1/04

    摘要: A telecommunication fiber optic cable for gas pipeline application has a built-in leakage detecting device. The cable has an optical core including a number of telecommunication optical fibers, an outer jacket covering the optical core, and one or more gas leakage detector optical fibers. One or more gas leakage detector optical fibers are enclosed within the outer jacket. Preferably, the cable has a linearly extending rod reinforcing system having strength rods that force the cable to bend in a preferential bending place. Preferably, the leakage detector optical fibers are located at, or close to, a plane that is substantially orthogonal to the preferential bending plane and passing through the cable neutral axis.

    摘要翻译: 用于气体管道应用的电信光缆具有内置的漏电检测装置。 电缆具有包括多个通信光纤的光纤芯,覆盖光纤芯的外护套和一个或多个气体泄漏检测器光纤。 一个或多个气体泄漏检测器光纤被封装在外护套内。 优选地,电缆具有线性延伸的杆加强系统,其具有强制杆,其强制电缆在优先弯曲的位置弯曲。 优选地,泄漏检测器光纤位于基本上正交于优先弯曲平面并穿过电缆中性轴线的平面处或附近。

    PROCESS AND APPARATUS FOR MANUFACTURING AN OPTICAL CABLE
    2.
    发明申请
    PROCESS AND APPARATUS FOR MANUFACTURING AN OPTICAL CABLE 审中-公开
    制造光缆的工艺和装置

    公开(公告)号:US20100043953A1

    公开(公告)日:2010-02-25

    申请号:US12556837

    申请日:2009-09-10

    IPC分类号: B29D11/00 B29C47/92

    摘要: An optical cable is manufactured in a single continuous process starting directly from at least an optical preform, by means of a fiber/cable integrated manufacturing line including a fiber(s) drawing assembly for the production of one or more optical fibers from respective optical preforms, and a cabling assembly for producing the optical cable from the optical fiber(s), the cabling assembly comprising a fiber buffering assembly for the application of a loose or tight coating to the optical fiber(s), and a strengthening and sheathing sub-assembly for applying one or more reinforcing and protective layers to the buffered optical fiber(s).

    摘要翻译: 光缆由单一的连续工艺制造,直接从至少一个光学预型件开始,通过一根纤维/电缆集成的生产线包括用于从相应的光学预成型件生产一根或多根光纤的光纤拉丝组件 以及用于从所述光纤生产光缆的布线组件,所述布线组件包括用于向所述光纤施加松散或紧密涂层的光纤缓冲组件,以及强化和护套子系统, 用于将一个或多个增强和保护层施加到缓冲光纤的组件。

    Dielectric optical fiber cable having improved installation features
    3.
    发明授权
    Dielectric optical fiber cable having improved installation features 有权
    具有改进的安装特征的介质光缆

    公开(公告)号:US07333697B2

    公开(公告)日:2008-02-19

    申请号:US10565634

    申请日:2003-07-25

    IPC分类号: G02B6/44

    CPC分类号: G02B6/4433

    摘要: A telecommunication optical fiber cable and in particular a reduced diameter optical cable with improved installation features for use in the end part of an access telecommunication network. The optical fiber cable has a number of optical fibers; at least a core tube containing the optical fibers; a jacket surrounding the core tube; and at least one strength rod spaced from the central axis, the cable having a twisting stiffness G*Jp, wherein G is the elastic shear modulus; and Jp is the polar moment of inertia of a cable section, wherein the twisting stiffness G*Jp is lower than or equal to 0.10 Nm2, preferably lower than or equal to 0.05 Nm2, and more preferably lower than or equal to 0.02 Nm2. The cable is profitably installable by a blown method.

    摘要翻译: 电信光纤电缆,特别是具有改进的安装特征的减小直径的光缆,用于接入电信网络的端部。 光缆具有多条光纤; 至少包含光纤的芯管; 围绕核心管的护套; 以及与所述中心轴线间隔开的至少一个强度棒,所述电缆具有扭转刚度G * J P P,其中G是弹性剪切模量; 并且J P是电缆部分的极性转动惯量,其中扭转刚度G * J

    小于或等于0.10Nm 2 / 优选低于或等于0.05Nm 2,更优选低于或等于0.02Nm 2。 电缆可以通过吹制方式有利地安装。

    Telecommunication optical cable for gas pipeline applications having built-in leakage detecting device
    4.
    发明申请
    Telecommunication optical cable for gas pipeline applications having built-in leakage detecting device 失效
    用于气体管道应用的电信光缆,具有内置的漏电检测装置

    公开(公告)号:US20070081773A1

    公开(公告)日:2007-04-12

    申请号:US10576606

    申请日:2003-10-23

    IPC分类号: G02B6/44

    摘要: A telecommunication fiber optic cable for gas pipeline application has a built-in leakage detecting device. The cable has an optical core including a number of telecommunication optical fibers, an outer jacket covering the optical core, and one or more gas leakage detector optical fibers. One or more gas leakage detector optical fibers are enclosed within the outer jacket. Preferably, the cable has a linearly extending rod reinforcing system having strength rods that force the cable to bend in a preferential bending place. Preferably, the leakage detector optical fibers are located at, or close to, a plane that is substantially orthogonal to the preferential bending plane and passing through the cable neutral axis.

    摘要翻译: 用于气体管道应用的通信光缆具有内置的泄漏检测装置。 电缆具有包括多个通信光纤的光纤芯,覆盖光纤芯的外护套和一个或多个气体泄漏检测器光纤。 一个或多个气体泄漏检测器光纤被封装在外护套内。 优选地,电缆具有线性延伸的杆加强系统,其具有强制杆,其强制电缆在优先弯曲的位置弯曲。 优选地,泄漏检测器光纤位于基本上正交于优先弯曲平面并穿过电缆中性轴线的平面处或附近。

    Radiation curable colored coating composition
    5.
    发明授权
    Radiation curable colored coating composition 有权
    可辐射固化着色涂料组合物

    公开(公告)号:US06797740B2

    公开(公告)日:2004-09-28

    申请号:US10321892

    申请日:2002-12-17

    IPC分类号: C09D1100

    摘要: The invention relates to a radiation curable colored coating composition for coloring a coated optical fiber wherein the coating, when disposed and cured to surround an optical fiber coated with an internal coating, and when said colored fiber is coated with a matrix material and assembled into an optical fiber ribbon, said colored coating has a degree of adhesion to the internal coating which is higher than the degree of adhesion to the matrix material and said optical fiber assembled into said optical fiber ribbon shows, upon aging for at least two weeks in water at 60° C., an increase in the attenuation of the transmitted signal at 1550 nm of less than 0.05 db/km with respect to the attenuation of the assembled optical fiber measured before aging. The invention also relates to said colored coating composition when used in an optical fiber ribbon.

    摘要翻译: 本发明涉及一种用于使涂覆光纤着色的可辐射固化的着色涂料组合物,其中当涂布被设置和固化以包围涂覆有内部涂层的光纤时,并且当所述有色纤维涂覆有基质材料并组装成 光纤带,所述着色涂层对内部涂层具有一定程度的粘附程度,其高于对基体材料的粘附程度,并且组装到所述光纤带中的所述光纤在水中老化至少两周后, 相对于老化前测量的组装光纤的衰减,在1550nm处的发射信号的衰减的增加小于0.05db / km。 本发明还涉及当用在光纤带中时所述着色涂料组合物。

    Apparatus for manufacturing an optical cable and cable so manufactured
    6.
    发明授权
    Apparatus for manufacturing an optical cable and cable so manufactured 有权
    用于制造如此制造的光缆和电缆的设备

    公开(公告)号:US08406590B2

    公开(公告)日:2013-03-26

    申请号:US13412807

    申请日:2012-03-06

    CPC分类号: G02B6/4484 Y10T29/5185

    摘要: A method and apparatus for manufacturing an optical cable comprising at least one metal tube housing at least one optical fiber and having a predetermined excess fiber length (EFL) is described. In this method the metal tube is plastically deformed and shortened by a predetermined amount (St) greater than the predetermined EFL and is plastically deformed after shortening to provide a controlled elongation thereof so as to reach the predetermined excess fiber length. An optical cable so manufactured has a local excess fiber length (EFL) varying of or less than 0.2% along the longitudinal extension of the cable with respect to an average EFL of the cable.

    摘要翻译: 描述了一种用于制造光缆的方法和装置,其包括容纳至少一根光纤并且具有预定的过多纤维长度(EFL)的至少一个金属管。 在该方法中,金属管被塑性变形并且缩短预定量(St)大于预定的EFL,并且在缩短之后塑性变形以提供受控的伸长率,从而达到预定的多余纤维长度。 如此制造的光缆具有相对于电缆的平均EFL沿着电缆的纵向延伸而变化或小于0.2%的局部过剩纤维长度(EFL)。

    Method and apparatus for manufacturing an optical cable and cable so manufactured
    7.
    发明授权
    Method and apparatus for manufacturing an optical cable and cable so manufactured 有权
    制造如此制造的光缆和电缆的方法和装置

    公开(公告)号:US08150226B2

    公开(公告)日:2012-04-03

    申请号:US11909203

    申请日:2005-03-29

    CPC分类号: G02B6/4484 G02B6/4488

    摘要: A method and apparatus for manufacturing an optical cable comprising at least one metal tube housing at least one optical fiber and having a predetermined excess fiber length (EFL) is described. In this method the metal tube is plastically deformed and shortened by a predetermined amount (St) greater than the predetermined EFL and is plastically deformed after shortening to provide a controlled elongation thereof so as to reach the predetermined excess fiber length. An optical cable so manufactured has a local excess fiber length (EFL) varying of or less than 0.2 % along the longitudinal extension of the cable with respect to an average EFL of the cable.

    摘要翻译: 描述了一种用于制造光缆的方法和装置,其包括容纳至少一根光纤并且具有预定的过多纤维长度(EFL)的至少一个金属管。 在该方法中,金属管被塑性变形并且缩短预定量(St)大于预定的EFL,并且在缩短之后塑性变形以提供受控的伸长率,从而达到预定的多余纤维长度。 如此制造的光缆具有相对于电缆的平均EFL沿着电缆的纵向延伸而变化或小于0.2%的局部过剩纤维长度(EFL)。

    Optical Cable for Communication
    8.
    发明申请
    Optical Cable for Communication 有权
    光缆用于通信

    公开(公告)号:US20080212927A1

    公开(公告)日:2008-09-04

    申请号:US11663757

    申请日:2004-09-27

    IPC分类号: G02B6/44 C08K3/00

    CPC分类号: G02B6/4494 G02B6/441

    摘要: An optical cable for communication includes at least one micromodule, wherein the micromodule is blocked with respect to the propagation of water. The at least ones micromodule includes at least one optical fiber, a retaining element for housing the at least one optical fiber, and a thixotropic filling compound arranged within the retaining element. The filling compound is thixotropic, has a viscosity higher than or equal to 700 Pa-s at zero shear rate and at a first temperature of 20° C., a loss modulus G″ lower than or equal to 3000 MPa at 1 Hz and at a second temperature of −45° C., and is compatible with the retaining element.

    摘要翻译: 用于通信的光缆包括至少一个微型组件,其中微型组件相对于水的传播而被阻挡。 至少一个微型组件包括至少一个光纤,用于容纳至少一个光纤的保持元件和布置在保持元件内的触变填充化合物。 填充化合物是触变性的,在零剪切速率和20℃的第一温度下具有高于或等于700Pa·s的粘度,1Hz时的损耗模量G“低于或等于3000MPa, 在-45℃的第二温度下,与保持元件相容。

    Telecommunication Loose Tube Optical Cable with Reduced Diameter
    9.
    发明申请
    Telecommunication Loose Tube Optical Cable with Reduced Diameter 有权
    具有直径减小的电信松散管光缆

    公开(公告)号:US20070274647A1

    公开(公告)日:2007-11-29

    申请号:US10573894

    申请日:2003-09-30

    IPC分类号: G02B6/44

    摘要: An optical fiber cable has a highly reduced diameter. The cable has a central strength member; a number of tubes containing loosely arranged optical fibers, each tube having a thickness, and each optical fiber having a coating; and a protective outer jacket, wherein the filling coefficient of optical fibers in at least one loose tube is ≧45°/0. The tubes are made of a material having an elasticity modulus ≧700 MPa; and the optical fibers are SM-R fibers having a microbending sensitivity ≦4.0 dB·km−1/g·mm−1 at a temperature of about −30° C. to +60° C. at about 1550 nm.

    摘要翻译: 光纤电缆的直径大大降低。 电缆具有中心强度构件; 包含松散布置的光纤的多个管,每个管具有厚度,并且每个光纤具有涂层; 和保护外护套,其中至少一个松套管中的光纤的填充系数> 45°/ 0。 管由具有弹性模量> = 700MPa的材料制成; 并且光纤是在约-30℃的温度下具有微弯曲灵敏度<= 4.0 DB.KM / g.mm -1的SM-R纤维 在约1550nm至+ 60℃。

    Optical cable provide with a mechanically resistant covering
    10.
    发明授权
    Optical cable provide with a mechanically resistant covering 有权
    光缆提供机械抵抗的覆盖物

    公开(公告)号:US07302143B2

    公开(公告)日:2007-11-27

    申请号:US10479484

    申请日:2002-05-28

    IPC分类号: G02B6/44

    CPC分类号: G02B6/443 G02B6/441

    摘要: An optical cable having at least one element for the transmission of optical signals and a structure that is able to protect the at least one element. The structure is a multilayer structure and is arranged in a position radially external to the at least one element and has a) at least one first covering layer of polymeric material in a position radially external to the at least one element; b) at least one covering layer of foamed polymeric material in a position radially external to the at least one first covering layer, and c) at least one second covering layer of polymeric material in a position radially external to the at least one covering layer of foamed polymeric material. The foamed polymeric material has a density between 0.3 and 0.7 kg/dm3 and tensile modulus at 20° C. between 300 and 700 MPa.

    摘要翻译: 一种具有用于传输光信号的至少一个元件和能够保护至少一个元件的结构的光缆。 该结构是多层结构,并且被布置在至少一个元件的径向外侧的位置中,并且具有:至少一个聚合材料的第一覆盖层,位于所述至少一个元件的径向外部的位置; b)在所述至少一个第一覆盖层的径向外侧的位置处的至少一层泡沫聚合材料的覆盖层,以及c)至少一个第二覆盖层,所述第二覆盖层位于所述至少一个第一覆盖层的至少一个覆盖层的径向外侧 发泡聚合材料。 发泡聚合物材料的密度在0.3和0.7kg / dm 3之间,在20℃和300-700MPa之间的拉伸模量。