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    Optical cable
    1.
    发明授权
    Optical cable 有权

    公开(公告)号：US12105336B2

    公开(公告)日：2024-10-01

    申请号：US18288975

    申请日：2022-01-20

    申请人： LS CABLE & SYSTEM LTD.

    发明人： Man Su Lee

    IPC分类号： G02B6/44

    CPC分类号： G02B6/4433 ,  G02B6/4434 ,  G02B6/448 ,  G02B6/4486 ,  G02B6/449

    摘要： An optical cable is provided in which an optical fiber bundle with clustered or bundled optical fibers is accommodated in a tubular member and the optical fibers are formed in an excess group length (EGL) by modeling considering bending properties of the optical cable or a lossless bending radius of the optical fibers of the optical fiber bundle, thereby minimizing stress, damage or optical loss of the optical fibers in the optical fiber bundle.

    Foamed tube having free space around ribbon stacks of optical fiber cable
    3.
    发明授权
    Foamed tube having free space around ribbon stacks of optical fiber cable 有权

    公开(公告)号：US11880083B2

    公开(公告)日：2024-01-23

    申请号：US18084857

    申请日：2022-12-20

    申请人： Corning Research & Development Corporation

    发明人： Anne Germaine Bringuier ,  Xiaole Cheng ,  Sergey Vladimirovich Chernykh

    IPC分类号： G02B6/44

    CPC分类号： G02B6/4486 ,  G02B6/448

    摘要： Embodiments of the disclosure relate to an optical fiber cable. The optical fiber cable includes a cable jacket having an inner jacket surface and an outer jacket surface. The outer jacket surface is an outermost surface of the optical fiber cable, and the inner jacket surface defines an internal jacket bore. The optical fiber cable also includes at least one subunit disposed within the internal jacket bore. Each of the at least one subunit includes a foamed tube having an inner subunit surface and an outer subunit surface. The inner subunit surface defines a central subunit bore. Each of the at least one subunit also includes a stack of at least two optical fiber ribbons disposed in the central subunit bore of the foamed tube. Each of the at least two optical fiber ribbons comprising at least two optical fibers. The stack occupies from 85%-95% of a cross-sectional area of the central subunit bore such that the central subunit bore provides from 5% to 15% of free space around the stack along at least a portion of a length of the foamed tube.

    Cable skin layer with access sections integrated into a cable jacket
    5.
    发明授权
    Cable skin layer with access sections integrated into a cable jacket 有权

    公开(公告)号：US11754795B2

    公开(公告)日：2023-09-12

    申请号：US17545431

    申请日：2021-12-08

    申请人： CORNING RESEARCH & DEVELOPMENT CORPORATION

    发明人： George Cornelius Abernathy ,  James Arthur Register, III

    IPC分类号： G02B6/44

    CPC分类号： G02B6/443 ,  G02B6/4486 ,  G02B6/4494

    摘要： An optical fiber cable includes a central tube having a first inner and a first outer surface. The first inner surface defines a bore along a longitudinal axis of the cable. Optical fibers are disposed within the bore of the central tube. A cable jacket is disposed around the central tube. The cable jacket has a second inner and a second outer surface defining a first thickness. A skin layer is disposed around the cable jacket. The skin layer has a third inner and a third outer surface defining a second thickness that is 100 μm or less. The cable jacket material is different from the skin layer material, and the third outer surface defines the outermost surface of the optical fiber cable. Access sections made of the second material extend from the skin layer into the first thickness of the cable jacket.

    Encapsulated tubular cable with colorized identification strap, and preparation method thereof
    7.
    发明授权
    Encapsulated tubular cable with colorized identification strap, and preparation method thereof 有权

    公开(公告)号：US11703153B2

    公开(公告)日：2023-07-18

    申请号：US17439120

    申请日：2021-05-13

    申请人： Shinda (Tangshan) Creative Oil & Gas Equipment Co., Ltd.

    发明人： Jianliang Duan ,  Jian Dong

    IPC分类号： F16L3/26 ,  F16L3/22 ,  G02B6/44 ,  H02G3/04

    CPC分类号： F16L3/26 ,  F16L3/222 ,  G02B6/4459 ,  G02B6/4482 ,  G02B6/4486 ,  H02G3/04 ,  F16L2201/60

    摘要： An encapsulated tubular cable with a colorized identification strap includes armored protection ducts and an encapsulation protection layer. A hollow passage is formed in the center of the duct body after each armored protection duct is formed. A wire cable, an optical fiber, or an oil duct is placed in the hollow passage. The encapsulation protection layer wraps the armored protection ducts. A plurality of armored protection ducts are arranged in one encapsulated protection layer. A peripheral edge of each armored protection duct is correspondingly provided with at least one colorized identification strap group. The encapsulation protection layer improves the corrosion resistance of the encapsulated duct cable; the colorized identification straps are provided at the thinnest positions of the encapsulation protection layer to facilitate tearing and encapsulation; and each colorized identification strap has a respective color identifier, which is convenient for distinguishing objects in each hollow passage during use.