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公开(公告)号：US20240319466A1
公开(公告)日：2024-09-26
申请号：US18580487
申请日：2022-07-19
发明人： Fumiaki SATO , Yuuki SHIMODA , Satoshi OHNUKI , Takayuki YOKOCHI
IPC分类号： G02B6/44
CPC分类号： G02B6/443 , G02B6/4436
摘要： An optical fiber cable for air-blown installation includes: a plurality of optical fibers or a plurality of optical fiber ribbons; a cable sheath accommodating the plurality of optical fibers or the plurality of optical fiber ribbons; at least one tensile strength member embedded in the cable sheath; and a connection member connected to end portions of the plurality of optical fibers or end portions of the plurality of optical fiber ribbons.
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公开(公告)号：US12032217B2
公开(公告)日：2024-07-09
申请号：US16987797
申请日：2020-08-07
发明人： Kishore Sahoo , Sravan Kumar , Atulkumar Mishra , Vikash Shukla , Akhil Garg , Hemanth Kondapalli , Mahesh Deshpande , Gahininath Shinde , Venkatesh Murthy , Pramod Marru
IPC分类号： G02B6/44
CPC分类号： G02B6/4403 , G02B6/441 , G02B6/4429 , G02B6/4432 , G02B6/4436 , G02B6/44384 , G02B6/4404 , G02B6/4431 , G02B6/4434 , G02B6/448 , G02B6/4483
摘要： The present disclosure provides an optical fibre cable. The optical fibre cable includes a plurality of buffer tubes and a plurality of interstitial fillers in spaces between the plurality of buffer tubes. The plurality of interstitial fillers is arranged in spaces between the plurality of buffer tubes. The optical fibre cable may include a plurality of water swellable yarns. There is an optical fibre ribbon stack including a plurality of optical fibre ribbons. The plurality of optical fibre ribbons are stacked to form the optical fibre ribbon stack. The present disclosure provides a fire retardant optical fibre cable includes the plurality of buffer tubes and one or more numbers of interstitial fillers and includes at least one of a thermal resistant water blocking tape, a fire resistant water blocking tape and a Mica tape wrapped over the core of the fire retardant optical fibre cable.
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公开(公告)号：US20240176089A1
公开(公告)日：2024-05-30
申请号：US18552224
申请日：2022-12-19
发明人： Toyoaki KIMURA , Fumiaki SATO , Yohei SUZUKI , Kenta TSUCHIYA
IPC分类号： G02B6/44
CPC分类号： G02B6/4432 , G02B6/4436 , G02B6/44384
摘要： The present disclosure relates to an optical fiber cable that includes a plurality of optical fibers; a cable sheath covering the plurality of optical fibers; and a plurality of tension member groups embedded in the cable sheath, in which each of the plurality of tension member groups includes a plurality of tension members, the plurality of tension members are not in contact with each other, the plurality of tension member groups are arranged along a circumferential direction of the cable sheath in a cross section perpendicular to an axial direction of the optical fiber cable, and adjacent tension member groups among the plurality of tension member groups are separated from each other.
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公开(公告)号：US11994730B2
公开(公告)日：2024-05-28
申请号：US17907604
申请日：2021-06-28
发明人： Fumiaki Sato , Yohei Suzuki , Kenta Tsuchiya , Yuuki Shimoda , Taro Fujita , Ryota Fukumoto
IPC分类号： G02B6/44
CPC分类号： G02B6/4436 , G02B6/4432 , G02B6/4433
摘要： An optical fiber cable includes a plurality of optical fibers, a tensile strength member set that is disposed along the plurality of optical fibers in a longitudinal direction of the optical fiber cable, and a sheath that covers the plurality of optical fibers from outside and encloses the tensile strength member set in the sheath. In the optical fiber cable, at least four tensile strength member sets are embedded in the sheath in a state where the four tensile strength member sets are apart from each other in a radial direction of the optical fiber cable, the sheath includes a flame-retardant inorganic substance and a release agent, and a distance from one of the four tensile strength member sets to a surface layer of the sheath is 0.5 mm or more.
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公开(公告)号：US11927820B2
公开(公告)日：2024-03-12
申请号：US17314077
申请日：2021-05-07
申请人： Certicable, LLC
CPC分类号： G02B6/4432 , G02B6/4436 , G02B6/545 , G02B6/562
摘要： The specification relates to a fiber optic cable assembly. The fiber optic cable assembly includes: an outer sheath; fiberglass reinforced panels; a pull material; an inner jacket; a strength material; non-interlocking armor; and a tight buffer of optical fibers.
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公开(公告)号：US11835779B2
公开(公告)日：2023-12-05
申请号：US17846508
申请日：2022-06-22
发明人： Young Bin Song
IPC分类号： G02B6/44
CPC分类号： G02B6/4436 , G02B6/441 , G02B6/443 , G02B6/4488
摘要： The disclosure provides optical fiber cable manufacturing equipment including a collective core portion including a plurality of optical fibers, a metal tape disposed outside the collective core portion, and a sheath portion disposed outside the metal tape, the optical fiber cable manufacturing equipment including: a pre-bonding portion configured to pre-bond the metal tape to the outside of the collective core portion; a first coating portion disposed behind the pre-bonding portion to coat a first adhesive over at least part of both ends of the metal tape; a bonding portion disposed behind the pre-bonding portion to bond the metal tape to the outside of the collective core portion with the both ends of the metal tape overlapping each other; a second coating portion disposed behind the bonding portion to coat a second adhesive over the outside of the metal tape; and a sheath fabrication portion disposed behind the second coating portion to cover the collective core portion to which the metal tape is bonded, with a sheath, wherein an upper portion of the collective core portion to which the metal tape is bonded is heated before the collective core portion to which the metal tape is bonded enters the second coating portion, wherein the second adhesive is coated only over a lower portion of the collected core portion to which the metal tape is bonded in the second coating portion, wherein a melting point of the first adhesive is higher than a melting point of the first adhesive.
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公开(公告)号：US20230350146A1
公开(公告)日：2023-11-02
申请号：US18219327
申请日：2023-07-07
IPC分类号： G02B6/44
CPC分类号： G02B6/4436 , G02B6/4432
摘要： Embodiments of the disclosure relate to an optical fiber cable. The optical fiber cable includes a subunit having a first interior surface and a first exterior surface. The first interior surface defines a central bore along a longitudinal axis of the optical fiber cable. At least one optical fiber is disposed within the central bore of the subunit, and a plurality of strengthening yarns is disposed around the subunit. A cable sheath disposed around the plurality of strengthening yarns. The cable sheath has a second interior surface and a second exterior surface. The second exterior surface defines an outermost surface of the optical fiber cable. The cable sheath includes from 55% to 68% by weight of a mineral-based flame retardant additive and from 35% to 45% by weight of a polymer blend. The polymer blend includes a co-polyester or co-polyether and a polyolefin or a polyolefin elastomer.
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公开(公告)号：US20230314745A1
公开(公告)日：2023-10-05
申请号：US18204582
申请日：2023-06-01
发明人： Rajesh Kamath , Michael Houck , Brett Villiger , Justin Quinn , Joseph Cignarale
IPC分类号： G02B6/44
CPC分类号： G02B6/4432 , G02B6/4403 , G02B6/4436 , G02B6/4433
摘要： A fiber optic distribution cable includes a central inner jacket formed from one of a polyvinyl chloride or a low smoke zero halogen material, a plurality of optical fibers disposed within the inner jacket, and a plurality of first strength members disposed within the inner jacket. The fiber optic distribution cable further includes an outer jacket surrounding the central inner jacket, the outer jacket formed from the one of the polyvinyl chloride or the low smoke zero halogen material, and a plurality of second strength members disposed between the outer jacket and the central inner jacket. A fiber density of the cable is greater than 0.65 fibers per square millimeter.
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9.发明公开公开(公告)号：US20230258895A1
公开(公告)日：2023-08-17
申请号：US18130968
申请日：2023-04-05
发明人： Bradley Jerome Blazer , Warren Welborn McAlpine , David Alan Seddon , Rebecca Elizabeth Sistare , Kenneth Darrell Temple, JR.
IPC分类号： G02B6/44
CPC分类号： G02B6/443 , G02B6/44384 , G02B6/4436
摘要： An optical fiber cable includes a central element, extending along a longitudinal axis of the optical fiber cable, and a plurality of routable subunits, each routable subunit having a rigidly stranded ribbon stack and a tight buffer layer surrounding the ribbon stack, wherein the subunits are SZ-stranded around the central element to form a cable core. A binder film continuously and contiguously surrounds the plurality of routable subunits along the longitudinal axis and a cable sheath continuously and contiguously surrounds the binder film along the longitudinal axis, wherein the cable sheath has an inside surface and an outside surface, the inside surface defining an elliptical shape and the outside surface defining a generally circular shape
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公开(公告)号：US11698499B2
公开(公告)日：2023-07-11
申请号：US17540679
申请日：2021-12-02
发明人： Xiaole Cheng , Jason Clay Lail
IPC分类号： G02B6/44
CPC分类号： G02B6/4432 , G02B6/4436
摘要： An optical fiber drop cable. The optical fiber drop cable includes at least one optical fiber and at least one inner tensile element wound around the at least one optical fiber having a laylength of at least 200 mm. The optical fiber drop cable also includes an interior jacket disposed around the at least one inner tensile element and an exterior jacket having an inner surface and an outer surface. The optical fiber drop cable further includes at least one outer tensile element disposed between the interior jacket and the outer surface of the exterior jacket. Each of the at least one outer tensile element has a laylength of at least 1 m. The exterior jacket includes at least one polyolefin, at least one thermoplastic elastomer, and at least one high aspect ratio inorganic filler. The exterior jacket has an averaged coefficient of thermal expansion of no more than 120 (10−6) m/mK.
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