Dry tube fiber optic assemblies, cables, and manufacturing methods therefor
    4.
    发明授权
    Dry tube fiber optic assemblies, cables, and manufacturing methods therefor 有权
    干管光纤组件,电缆及其制造方法

    公开(公告)号:US06931184B2

    公开(公告)日:2005-08-16

    申请号:US10448509

    申请日:2003-05-30

    IPC分类号: G02B6/44

    摘要: A fiber optic dry tube assembly and a method of manufacturing the same includes at least one optical waveguide and a tube. The tube houses at least a portion of the at least one optical fiber and is formed from a bimodal polymeric material. The tube has an average ovality of about 10 percent or less. In other embodiments, the bimodal polymeric material that forms the tube has a melt index of about 1.0 g/10 minutes or less, a melt strength in the range of about 8 cN to about 35 cN at 190° C,. and/or a polydisperity of about 7 or greater. Additionally, the dry tube assemblies of the present invention can form a portion of a cable.

    摘要翻译: 光纤干管组件及其制造方法包括至少一个光波导和管。 管容纳至少一个光纤的至少一部分,并且由双峰聚合材料形成。 该管具有约10%或更小的平均椭圆度。 在其它实施方案中,形成管的双峰聚合材料的熔体指数为约1.0g / 10分钟或更短,熔体强度在190℃时约为8cN至约35cN。 和/或约7或更大的多不饱和度。 此外,本发明的干管组件可以形成电缆的一部分。

    Optical Tube Assembly Having a Dry Insert and Methods of Making the Same
    5.
    发明申请
    Optical Tube Assembly Having a Dry Insert and Methods of Making the Same 有权
    具有干燥插入物的光学管组件及其制造方法

    公开(公告)号:US20090074363A1

    公开(公告)日:2009-03-19

    申请号:US12273092

    申请日:2008-11-18

    IPC分类号: G02B6/44

    摘要: An optical tube assembly having at least one optical waveguide, at least one dry insert, and a tube. The at least one optical waveguide is disposed within the tube and generally surrounds the at least one optical waveguide. In one embodiment, the dry insert has a first layer comprising a felt having at least one type of non-continuous filament. The dry insert may also include a plurality of water-swellable filaments. In another embodiment, a dry insert has a first layer, a second layer, and a plurality of water-swellable filaments. The first and second layers are attached together at least along the longitudinal edges thereof, thereby forming at least one compartment between the first and second layers and the plurality of water-swellable filaments are generally disposed in the at least one compartment. The dry insert also is advantageous in tubeless cable designs.

    摘要翻译: 一种光管组件,其具有至少一个光波导,至少一个干插入物和管。 所述至少一个光波导设置在所述管内并且通常围绕所述至少一个光波导。 在一个实施例中,干燥插入物具有包括具有至少一种类型的非连续长丝的毡的第一层。 干燥的插入物还可以包括多个水溶胀长丝。 在另一个实施方案中,干燥的插入物具有第一层,第二层和多个水溶胀长丝。 第一层和第二层至少沿着其纵向边缘连接在一起,从而在第一层和第二层之间形成至少一个隔室,并且多个水可溶胀长丝通常设置在至少一个隔室中。 干插入物也有利于无内胎电缆设计。

    Optical tube assembly having a dry insert and methods of making the same
    6.
    发明授权
    Optical tube assembly having a dry insert and methods of making the same 有权
    具有干式插入件的光学管组件及其制造方法

    公开(公告)号:US07751666B2

    公开(公告)日:2010-07-06

    申请号:US12273092

    申请日:2008-11-18

    IPC分类号: G02B6/44

    摘要: An optical tube assembly having at least one optical waveguide, at least one dry insert, and a tube. The at least one optical waveguide is disposed within the tube and generally surrounds the at least one optical waveguide. In one embodiment, the dry insert has a first layer comprising a felt having at least one type of non-continuous filament. The dry insert may also include a plurality of water-swellable filaments. In another embodiment, a dry insert has a first layer, a second layer, and a plurality of water-swellable filaments. The first and second layers are attached together at least along the longitudinal edges thereof, thereby forming at least one compartment between the first and second layers and the plurality of water-swellable filaments are generally disposed in the at least one compartment. The dry insert also is advantageous in tubeless cable designs.

    摘要翻译: 一种光管组件,其具有至少一个光波导,至少一个干插入物和管。 所述至少一个光波导设置在所述管内并且通常围绕所述至少一个光波导。 在一个实施例中,干燥插入物具有包括具有至少一种类型的非连续长丝的毡的第一层。 干燥的插入物还可以包括多个水溶胀长丝。 在另一个实施方案中,干燥的插入物具有第一层,第二层和多个水溶胀长丝。 第一层和第二层至少沿着其纵向边缘连接在一起,从而在第一层和第二层之间形成至少一个隔室,并且多个水可溶胀长丝通常设置在至少一个隔室中。 干插入物也有利于无内胎电缆设计。

    Optical tube assembly having a dry insert and methods of making the same
    7.
    发明授权
    Optical tube assembly having a dry insert and methods of making the same 有权
    具有干式插入件的光学管组件及其制造方法

    公开(公告)号:US07254302B2

    公开(公告)日:2007-08-07

    申请号:US10847807

    申请日:2004-05-18

    IPC分类号: G02B6/44

    摘要: An optical tube assembly having at least one optical waveguide, at least one dry insert, and a tube. The at least one optical waveguide is disposed within the tube and generally surrounds the at least one optical waveguide. In one embodiment, the dry insert has a first layer comprising a felt having at least one type of non-continuous filament. The dry insert may also include a plurality of water-swellable filaments. In another embodiment, a dry insert has a first layer, a second layer, and a plurality of water-swellable filaments. The first and second layers are attached together at least along the longitudinal edges thereof, thereby forming at least one compartment between the first and second layers and the plurality of water-swellable filaments are generally disposed in the at least one compartment. The dry insert also is advantageous in tubeless cable designs.

    摘要翻译: 一种光管组件,其具有至少一个光波导,至少一个干插入物和管。 所述至少一个光波导设置在所述管内并且通常围绕所述至少一个光波导。 在一个实施例中,干燥插入物具有包括具有至少一种类型的非连续长丝的毡的第一层。 干燥的插入物还可以包括多个水溶胀长丝。 在另一个实施方案中,干燥的插入物具有第一层,第二层和多个水溶胀长丝。 第一层和第二层至少沿着其纵向边缘连接在一起,从而在第一层和第二层之间形成至少一个隔室,并且多个水可溶胀长丝通常设置在至少一个隔室中。 干插入物也有利于无内胎电缆设计。

    Optical tube assembly having a dry insert and methods of making the same
    9.
    发明授权
    Optical tube assembly having a dry insert and methods of making the same 有权
    具有干式插入件的光学管组件及其制造方法

    公开(公告)号:US07469087B2

    公开(公告)日:2008-12-23

    申请号:US11881280

    申请日:2007-07-26

    IPC分类号: G02B6/44

    摘要: An optical tube assembly having at least one optical waveguide, at least one dry insert, and a tube. The at least one optical waveguide is disposed within the tube and generally surrounds the at least one optical waveguide. In one embodiment, the dry insert has a first layer comprising a felt having at least one type of non-continuous filament. The dry insert may also include a plurality of water-swellable filaments. In another embodiment, a dry insert has a first layer, a second layer, and a plurality of water-swellable filaments. The first and second layers are attached together at least along the longitudinal edges thereof, thereby forming at least one compartment between the first and second layers and the plurality of water-swellable filaments are generally disposed in the at least one compartment. The dry insert also is advantageous in tubeless cable designs.

    摘要翻译: 一种光管组件,其具有至少一个光波导,至少一个干插入物和管。 所述至少一个光波导设置在所述管内并且通常围绕所述至少一个光波导。 在一个实施例中,干燥插入物具有包括具有至少一种类型的非连续长丝的毡的第一层。 干燥的插入物还可以包括多个水溶胀长丝。 在另一个实施方案中,干燥的插入物具有第一层,第二层和多个水溶胀长丝。 第一层和第二层至少沿着其纵向边缘连接在一起,从而在第一层和第二层之间形成至少一个隔室,并且多个水可溶胀长丝通常设置在至少一个隔室中。 干插入物也有利于无内胎电缆设计。

    Optical tube assembly having a dry insert and methods of making the same
    10.
    发明授权
    Optical tube assembly having a dry insert and methods of making the same 有权
    具有干式插入件的光学管组件及其制造方法

    公开(公告)号:US07177507B2

    公开(公告)日:2007-02-13

    申请号:US10862541

    申请日:2004-06-07

    IPC分类号: G02B6/44

    摘要: An optical tube assembly having at least one optical waveguide, at least one dry insert, and a tube. In one embodiment, the dry insert has a first layer and a second layer attached together with an adhesive. The dry insert also includes a plurality of particles having an average particle size of about 600 microns or less for inhibiting microbending. The first layer may be a polyurethane foam having an average cell size of about 1000 microns or less and the second layer is a water-swellable layer. The dry insert is disposed within the tube and generally surrounds the at least one optical waveguide and the tube assembly can be a portion of a fiber optic cable.

    摘要翻译: 一种光管组件,其具有至少一个光波导,至少一个干插入物和管。 在一个实施例中,干燥插入物具有与粘合剂一起附着的第一层和第二层。 干燥插入物还包括平均粒径为约600微米或更小的多个颗粒以抑制微弯曲。 第一层可以是平均泡孔尺寸为约1000微米或更小的聚氨酯泡沫,而第二层为水溶胀层。 干插入件设置在管内并且通常围绕至少一个光波导,并且管组件可以是光纤电缆的一部分。