FIBER OPTIC CABLES WITH STRENGTH MEMBERS
    1.
    发明授权
    FIBER OPTIC CABLES WITH STRENGTH MEMBERS 有权
    与加强元件光纤电缆

    公开(公告)号:EP1319195B1

    公开(公告)日:2006-10-18

    申请号:EP01968090.9

    申请日:2001-08-23

    IPC分类号: G02B6/44

    CPC分类号: G02B6/4433 G02B6/4494

    摘要: A fiber optic cable having at least two strength components (20), an optical transmission omponent (12), and at least one tensile strength member (26) disposed generally adjacent at least one of the strength components (20), a strength member (26) to strength component (20) tensile strength ratio being about 0.1 to about 0.3. In another aspect, a fiber optic cable having at least two strength components (20), an optical transmission component (12), and at least one tensile strength member (26) being generally interposed between the optical transmission component (12) and at least one of the strength components (20), the tensile strength member (26) being multi-functional in that it preferably provides tensile strength and waterblocking. And in another aspect, a fiber optic cable with strength members (20) and strength components (26) comprising respective tensile strength ratings and defining an overall tensile strength rating ratio of about 0.25 to about 0.5.

    FIBER OPTIC DROP CABLE
    4.
    发明授权
    FIBER OPTIC DROP CABLE 有权
    光纤电缆连接

    公开(公告)号:EP1224496B1

    公开(公告)日:2006-12-20

    申请号:EP00972059.0

    申请日:2000-10-10

    IPC分类号: G02B6/44

    摘要: A fiber optic cable that includes an armor layer having inner and outer surfaces and defining a passageway therethrough, a protective jacket surrounding the armor layer, a plurality of optical fibers extending lengthwise through the passageway, and a water swellable element for inhibiting water migration through the passageway. The water swellable element can be a water swellable layer on at least one of the inner and outer surfaces of the armor layer and/or a water swellable yarn extending through the passageway. The fiber optic cable is preferably tubeless, i.e., free of buffer tubes. In instances in which a water swellable layer is on the inner surface of the armor layer, the optical fibers are capable of contacting the water swellable layer. Alternatively, in instances in which the fiber optic cable includes water swellable yarns but not a water swellable layer on the inner surface of the armor layer, the optical fibers are capable of contacting the armor layer and, more particularly, the plastic coating of the armor layer. The fiber optic cable can exhibit shape retention whereby the fiber optic cable can retain a bent shape.

    FIBER OPTIC DROP CABLE
    6.
    发明公开
    FIBER OPTIC DROP CABLE 有权
    光纤电缆连接

    公开(公告)号:EP1224496A1

    公开(公告)日:2002-07-24

    申请号:EP00972059.0

    申请日:2000-10-10

    IPC分类号: G02B6/44

    摘要: A fiber optic cable that includes an armor layer having inner and outer surfaces and defining a passageway therethrough, a protective jacket surrounding the armor layer, a plurality of optical fibers extending lengthwise through the passageway, and a water swellable element for inhibiting water migration through the passageway. The water swellable element can be a water swellable layer on at least one of the inner and outer surfaces of the armor layer and/or a water swellable yarn extending through the passageway. The fiber optic cable is preferably tubeless, i.e., free of buffer tubes. In instances in which a water swellable layer is on the inner surface of the armor layer, the optical fibers are capable of contacting the water swellable layer. Alternatively, in instances in which the fiber optic cable includes water swellable yarns but not a water swellable layer on the inner surface of the armor layer, the optical fibers are capable of contacting the armor layer and, more particularly, the plastic coating of the armor layer. The fiber optic cable can exhibit shape retention whereby the fiber optic cable can retain a bent shape.