Composite service and distribution communications media
    1.
    发明授权
    Composite service and distribution communications media 失效
    综合服务和配送通讯媒体

    公开(公告)号:US4852965A

    公开(公告)日:1989-08-01

    申请号:US019719

    申请日:1987-02-27

    IPC分类号: G02B6/44 H01B11/22

    摘要: A cable (20) which may be used in an aerial or buried installation to serve customers' premises and which is a composite optical fiber-copper conductor type serves present customer needs but has the capability to fulfill the service requirements predicted in the communications market of tomorrow. The cable includes one or more reinforced optical fiber units (22--22) and one or more metallic conductor pairs enclosed in a sheath system. Each optical fiber unit is reinforced to include a plurality of strength members (40--40) arrayed about a buffered optical fiber (36) to enclose the optical fiber and to provide columnar strength to resist compressive forces. A filling compound (52) is disposed within the unit between a jacket (50) which encloses the strength members and the buffered optical fiber.

    摘要翻译: 可用于天线或埋地安装以用于客户场所并且是复合光纤 - 铜导体类型的电缆(20)满足客户需求,但具有满足通信市场预测的服务要求的能力 明天。 电缆包括一个或多个增强的光纤单元(22-22)和一个或多个封装在护套系统中的金属导体对。 每个光纤单元被加强以包括围绕缓冲光纤(36)排列以包围光纤的多个强度构件(40-40),并提供柱状强度以抵抗压缩力。 填充化合物(52)设置在包围加强构件的护套(50)和缓冲光纤之间的单元内。

    Asymmetrical polarization-maintaining optical waveguide and process for
manufacture thereof
    2.
    发明授权
    Asymmetrical polarization-maintaining optical waveguide and process for manufacture thereof 失效
    不对称偏振保持光波导及其制造方法

    公开(公告)号:US5333229A

    公开(公告)日:1994-07-26

    申请号:US40694

    申请日:1993-03-31

    申请人: Emile G. Sayegh

    发明人: Emile G. Sayegh

    IPC分类号: G02B6/024 G02B6/10 G02B6/44

    摘要: An asymmetrically shaped signal polarization maintaining optical waveguide including an asymmetrically shaped optical fiber surrounded by glass cladding, hard polymer coating, soft porous polymer buffering layer, porous polymer laminate inner layer, polyester laminate outer layer bearing tabs oriented to an axis of asymmetry of the optical fiber, braid fiber sheath, and outer jacket, the observable tab orientation on the outside of the cable providing location means of the axis of asymmetry of the optical fiber.

    摘要翻译: 不对称形状的信号偏振保持光波导,包括由玻璃包层,硬聚合物涂层,软质多孔聚合物缓冲层,多孔聚合物层压体内层,聚酯层压板外层承载片材定向成光学不对称轴的不对称形状的光纤 纤维,编织纤维护套和外护套,电缆外侧上的可观察到的拉片取向提供光纤不对称轴的位置装置。

    Optical fiber cable
    3.
    发明授权
    Optical fiber cable 失效
    光纤电缆

    公开(公告)号:US4844575A

    公开(公告)日:1989-07-04

    申请号:US36954

    申请日:1987-04-10

    IPC分类号: G02B6/44 H01B7/285

    摘要: An optical fiber cable (20) includes a core (21) comprising at least one optical fiber (24) which is enclosed in a tubular member (34) and which includes a sheath system (40). The sheath system includes two strength members 42--42 which extend linearly longitudinally along the cable parallel to a longitudinal axis (29) of the cable. The strength members are enclosed in a plastic jacket (46). The strength members have predetermined relative tensile and compressive stiffnesses. The stiffnesses are such that the strength members are capable of withstanding expected compressive as well as tensile loading and are coupled sufficiently to the jacket to provide a composite arrangement which is effective to inhibit contraction and which controls the position of the neutral axis during bending while providing suitable flexibility. The strength members in a preferred embodiment are made of a metallic material such as steel and have tensile and compressive stiffness which are substantially equal to cause the plane of bending to extend through the strength members. In other embodiments, the core is filled with a waterblocking material, the tubular member is enclosed by a water absorbent tape and/or a metallic shield and metallic conductors may extend colinearly with the strength members.

    Optical fiber cable
    4.
    发明授权
    Optical fiber cable 失效
    光纤电缆

    公开(公告)号:US4185887A

    公开(公告)日:1980-01-29

    申请号:US468765

    申请日:1974-05-10

    摘要: An optical fiber band comprising an optical fiber intermediate and equi-distant from a pair of metal wires, each having substantially the same temperature coefficient of expansion as the optical fiber, embedded in a synthetic thermoplastic material and cables formed therewith. In one embodiment of a cable, a plurality of bands are bunched together and surrounded by a thermoplastic sheath. In another embodiment, a plurality of bands are disposed in side-by-side relation and preferably, secured together and a plurality of such bands are wound helically in successive layers around a supporting core, such as wire rope, and are covered by a thermoplastic sheath. Also, processes for forming the bands by extruding the thermoplastic over the fiber and wires or by sealing the fiber and wires between a pair of thermoplastic films.

    摘要翻译: 一种光纤带,其包括中间并且等距离一对金属线的光纤,每条金属丝具有嵌入合成热塑性材料中的与光纤基本相同的温度膨胀系数和与其形成的电缆。 在电缆的一个实施例中,多个带被聚束在一起并被热塑性护套包围。 在另一个实施例中,多个带以并排的关系设置并且优选地固定在一起,并且多个这样的带被螺旋地卷绕在诸如钢丝绳的支撑芯之间的连续层中,并且被热塑性塑料 鞘。 而且,通过在纤维和线材上挤出热塑性材料或通过将纤维和线材密封在一对热塑性薄膜之间来形成带材的方法。

    Drop cable
    5.
    发明授权
    Drop cable 有权
    掉线

    公开(公告)号:US09329351B2

    公开(公告)日:2016-05-03

    申请号:US14314797

    申请日:2014-06-25

    IPC分类号: G02B6/44

    摘要: A drop cable includes a jacket, first and second support members, and at least one optical fiber. The jacket has a oval-shaped cavity defined therein, where the minor dimension of the cavity is as small as about 0.25 mm and wherein the major dimension of the cavity is in a range of 0.25 mm to 10 mm. The first and second support members are arranged on opposing sides of the cavity and run generally longitudinally. The optical fiber is within the cavity and has a length greater than a length of the drop cable. Further, the optical fiber is in a substantially serpentine configuration in the cavity, where the serpentine configuration is substantially along a plane defined by a major axis of the oval-shape of the cavity.

    摘要翻译: 落线电缆包括护套,第一和第二支撑构件以及至少一个光纤。 护套具有限定在其中的椭圆形腔,其中腔的小尺寸小至约0.25mm,并且其中腔的主要尺寸在0.25mm至10mm的范围内。 第一和第二支撑构件布置在空腔的相对侧上并且大致纵向延伸。 光纤在空腔内并且具有大于分接电缆的长度的长度。 此外,光纤在空腔中处于基本蛇形结构,其中蛇形结构基本上沿着由空腔的椭圆形的长轴限定的平面。

    Method for drop cable having an oval cavity
    6.
    发明申请
    Method for drop cable having an oval cavity 审中-公开
    具有椭圆形腔的落线电缆的方法

    公开(公告)号:US20100109174A1

    公开(公告)日:2010-05-06

    申请号:US12290931

    申请日:2008-11-05

    IPC分类号: B29D11/00

    摘要: A method of forming a low-cost drop cable (10) is disclosed. The method includes providing a protective cover material (352) having an extrusion temperature of 140° C.≦TE≦160° C. The protective cover material is extruded through a die (420) having a single aperture (424) that defines the cable's elongate cross-sectional shape. The extrusion process involves covering first and second strength members (30) on either side of at least one optical fiber (50). The combination of the low temperature of the extrudable protective cover material and the elongate shape of the single die aperture cause the formation of an oval cavity (20) within the extruded protective cover material. The oval cavity has major and central axes (A1, AC) and surrounds the at least one optical fiber. The strength members lie along the cavity major axis. Tensioning the strength members during extrusion and then releasing the tension causes the drop cable length to be reduced. This gives rise to an excess fiber length, which adopts a serpentine configuration substantially in a plane (PF) defined by the major and central axes (A1, A2) of the oval cavity.

    摘要翻译: 公开了一种形成低成本液滴电缆(10)的方法。 该方法包括提供具有140℃的熔融温度的保护性覆盖材料(352)。保护性覆盖材料通过具有单个孔口(424)的模具(420)挤出,所述单个孔口(424)限定 电缆的细长横截面形状。 挤压工艺涉及在至少一根光纤(50)的任一侧覆盖第一和第二强度部件(30)。 可挤压保护性覆盖材料的低温与单模孔的细长形状的组合导致在挤出的保护性覆盖材料内形成椭圆形空腔(20)。 椭圆形腔具有主轴和中心轴(A1,AC)并且围绕至少一个光纤。 强度构件位于空腔长轴上。 在挤出过程中拉紧强度部件,然后松开张力会导致牵引电缆的长度减小。 这产生了过多的纤维长度,其采用基本上在由椭圆形腔的主轴和中心轴(A1,A2)限定的平面(PF)中的蛇形构造。

    Composite fiber optic/coaxial electrical cables
    7.
    发明授权
    Composite fiber optic/coaxial electrical cables 失效
    复合光纤/同轴电缆

    公开(公告)号:US06343172B1

    公开(公告)日:2002-01-29

    申请号:US09382007

    申请日:1999-08-24

    IPC分类号: G02B644

    摘要: Composite cables operative to transmit information in electrical and/or optical transmission modes. The cables can include an electrical coaxial conductor comprising a generally central electrical conductor in a dielectric matrix. At least one optical transmission component is integrated with the matrix. The matrix can include at least two optical transmission components disposed on generally opposed sides of the central electrical conductor. Any optical transmission component can be substantially mechanically de-coupled from the matrix. In addition, the matrix can include at least one ripcord, and an indicia can be formed on the matrix for locating the position of an optical transmission component. The composite cables can include structural features for imparting a preferential bend to the cable.

    摘要翻译: 复合电缆可用于在电和/或光传输模式下传输信息。 电缆可以包括电介质矩阵中包含大致中心的电导体的电同轴导体。 至少一个光传输部件与矩阵集成。 矩阵可以包括设置在中心电导体的大致相对侧上的至少两个光传输部件。 任何光传输部件可以基本上与基体机械地脱耦合。 此外,矩阵可以包括至少一个撕裂,并且可以在矩阵上形成标记以定位光传输部件的位置。 复合电缆可以包括用于赋予电缆优先弯曲的结构特征。