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公开(公告)号：US08369668B1
公开(公告)日：2013-02-05
申请号：US12799385
申请日：2010-04-23
IPC分类号： G02B6/44
CPC分类号： G02B6/4494 , G02B6/4479
摘要： A fiber optic cable can inhibit water that may inadvertently enter the cable from flowing lengthwise within the cable. The fiber optic cable can include a buffer tube defining an interior volume extending along the cable. Water blocking barriers can be disposed in the buffer tube intermittently along the length of the cable. The barriers can be formed from a UV and thermal cured material and can comprise an acrylic. The barriers can be applied to the optical fibers or to a carrier tape that is wrapped around the optical fibers or fiber bundle. The barriers (or carrier tape) can be disposed against and/or adhere to an inner surface of the buffer tube to provide intermittent water blocking. Each barrier can provide a seal around the optical fibers and can limit flow of water in the interior volume.
摘要翻译： 光纤电缆可以抑制可能无意中进入电缆的电缆在电缆内纵向流动。 光纤电缆可以包括限定沿着电缆延伸的内部空间的缓冲管。 阻水屏障可以沿着电缆的长度间歇地设置在缓冲管中。 障碍物可以由UV和热固化材料形成，并且可以包含丙烯酸。 障碍物可以应用于光纤或缠绕在光纤或纤维束周围的载带。 阻挡层（或载体带）可以设置成抵靠和/或粘附到缓冲管的内表面以提供间歇性的水封闭。 每个屏障可以围绕光纤提供密封并且可以限制内部空间中的水流。
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2.发明授权High-density fiber optic ribbon cable with enhanced water blocking performance 有权高密度光纤带状电缆具有增强的防水性能公开(公告)号：US07936957B1
公开(公告)日：2011-05-03
申请号：US12383367
申请日：2009-03-24
IPC分类号： G02B6/44
CPC分类号： G02B6/4494 , G02B6/4433 , G02B6/4435
摘要： A fiber optic cable can inhibit water, that may inadvertently enter the cable, from damaging the cable's optical fibers. The fiber optic cable can comprise buffer tubes extending along the fiber optic cable. The buffer tubes can be arranged such that a ring of buffer tubes surrounds one or more centrally located buffer tubes. Stacked ribbons of optical fibers can be disposed in each buffer tube, along with water-swellable tape and water-swellable yarn. The tape, yarn, and optical fibers can be dry or free from water-blocking gels or fluids. The water-swellable materials can provide an unexpected level of water protection. The water-swellable materials can, for example, limit flow of seawater within the buffer tubes. In an exemplary embodiment, progression of seawater can be limited to three meters or less for a twenty-four hour test period during which the seawater is under about one meter of head pressure.
摘要翻译： 光纤电缆可以抑制水分，这可能会无意中进入电缆，从而损坏电缆的光纤。 光纤电缆可以包括沿光纤电缆延伸的缓冲管。 缓冲管可以布置成使得缓冲管环围绕一个或多个位于中心的缓冲管。 堆叠的光纤带可以布置在每个缓冲管中，以及水溶胀带和水溶胀性纱线。 胶带，纱线和光纤可以是干燥的或没有阻水凝胶或流体。 水溶胀材料可以提供意想不到的防水水平。 水溶胀材料可以例如限制缓冲管内的海水流动。 在一个示例性实施例中，在海水处于头部压力大约一米的二十四小时测试期间，海水的进展可以被限制在三米或更小。
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公开(公告)号：US07590322B2
公开(公告)日：2009-09-15
申请号：US12075014
申请日：2008-03-07
IPC分类号： G02B6/44
CPC分类号： G02B6/4494
摘要： A fiber optic cable can inhibit water, that may inadvertently enter the cable, from damaging the cable's optical fibers. The fiber optic cable can comprise a buffer tube defining an interior volume extending along the fiber optic cable. Optical fibers can be disposed in the interior volume of the buffer tube, along with water-swellable materials, such as tapes and yarns. The interior volume can be dry or free from water-blocking gels or fluids. The water-swellable materials can provide the fiber optic cable with an unexpected level of protection from seawater. The water-swellable materials can, for example, limit flow of seawater along the interior volume. In an exemplary embodiment, progression of seawater in the interior volume be limited to three meters or less for a twenty four hour test period during which the seawater is under about one meter of head pressure.
摘要翻译： 光纤电缆可以抑制水分，这可能会无意中进入电缆，从而损坏电缆的光纤。 光纤电缆可以包括限定沿着光纤电缆延伸的内部空间的缓冲管。 光纤可以与缓冲管的内部容积一起，以及诸如胶带和纱线的水溶胀性材料。 内部容积可以是干燥的或不含防水凝胶或流体。 水溶胀材料可以为光纤电缆提供意想不到的防水水平。 例如，水溶胀材料可以限制沿着内部容积的海水流动。 在一个示例性实施例中，海水在头部压力约为1米的二十四小时测试期间内部体积中海水的进展被限制在三米或更小。
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公开(公告)号：US20080219627A1
公开(公告)日：2008-09-11
申请号：US12075014
申请日：2008-03-07
IPC分类号： G02B6/44
CPC分类号： G02B6/4494
摘要： A fiber optic cable can inhibit water, that may inadvertently enter the cable, from damaging the cable's optical fibers. The fiber optic cable can comprise a buffer tube defining an interior volume extending along the fiber optic cable. Optical fibers can be disposed in the interior volume of the buffer tube, along with water-swellable materials, such as tapes and yarns. The interior volume can be dry or free from water-blocking gels or fluids. The water-swellable materials can provide the fiber optic cable with an unexpected level of protection from seawater. The water-swellable materials can, for example, limit flow of seawater along the interior volume. In an exemplary embodiment, progression of seawater in the interior volume be limited to three meters or less for a twenty four hour test period during which the seawater is under about one meter of head pressure.
摘要翻译： 光纤电缆可以抑制水分，这可能会无意中进入电缆，从而损坏电缆的光纤。 光纤电缆可以包括限定沿着光纤电缆延伸的内部空间的缓冲管。 光纤可以与缓冲管的内部容积一起，以及诸如胶带和纱线的水溶胀性材料。 内部容积可以是干燥的或不含防水凝胶或流体。 水溶胀材料可以为光纤电缆提供意想不到的防水水平。 例如，水溶胀材料可以限制沿着内部容积的海水流动。 在一个示例性实施例中，海水在头部压力约为1米的二十四小时测试期间内部体积中海水的进展被限制在三米或更小。
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5.发明授权Method and apparatus for determining and controlling excess length of a communications element in a conduit 失效用于确定和控制导管中的通信元件的多余长度的方法和装置
公开(公告)号：US6066275A
公开(公告)日：2000-05-23
申请号：US111423
申请日：1998-07-07
CPC分类号： G02B6/4484 , B29C47/0023 , B29C47/92 , G01B11/043 , B29C2947/92142 , B29C2947/92638
摘要： A method and apparatus for determining and controlling the excess length of a communications element disposed in a conduit is disclosed. The method includes the steps of measuring the length of a communications element being disposed within the conduit, placing a mark on the conduit each time a pre-determined length of the communications element is disposed within the conduit, and measuring the distance between the marks on the conduit. The excess length is determined by comparing the distance between the initial mark and the subsequent mark on the conduit to the measured length of the communications element disposed within the conduit. To control the excess length ratio, the conduit may be stretched, or process parameters related to formation of the conduit may be changed.
摘要翻译： 公开了一种用于确定和控制设置在导管中的通信元件的多余长度的方法和装置。 该方法包括以下步骤：测量布置在导管内的通信元件的长度，每当通信元件的预定长度设置在导管内时，在导管上放置标记，并且测量标记之间的距离 导管。 通过将管道上的初始标记和随后标记之间的距离与设置在管道内的通信元件的测量长度进行比较来确定多余长度。 为了控制多余的长度比，导管可以被拉伸，或者可以改变与导管的形成相关的工艺参数。
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