With Strength Member Patents (Class 385/113)
  • Patent number: 11914213
    Abstract: The disclosed fiber optic cable may include (1) a plurality of optical fibers, (2) a core tube surrounding the plurality of optical fibers, (3) a thixotropic gel filling an interstitial space among the optical fibers within the core tube, (4) an intermediate layer surrounding the core tube, where the intermediate layer includes a plurality of linear elements contra-helically wrapped about the core tube, and (5) an outer layer surrounding the intermediate layer, where the outer layer includes a combination of a moisture-cure cross-linked material and an activation catalyst, where the outer layer is formed by masticating and extruding the combination onto the intermediate layer. Various other cables, assemblies, and methods are also disclosed.
    Type: Grant
    Filed: February 17, 2022
    Date of Patent: February 27, 2024
    Assignee: Meta Platforms, Inc.
    Inventor: Wayne Michael Kachmar
  • Patent number: 11874516
    Abstract: Embodiments of the disclosure relate to an optical fiber cable. The optical fiber cable includes a cable jacket having an inner surface and an outer surface in which the inner surface defines a central bore along a longitudinal axis of the optical fiber cable and the outer surface defines the outermost extent of the cable. The optical fiber cable also includes at least one access feature disposed in the cable jacket between the inner surface and the outer surface. Further included are a first plurality of optical fiber bundles. Each optical fiber bundle includes a second plurality of optical fiber ribbons that has a third plurality of optical fibers arranged in a planar configuration. The optical fiber cable bends uniformly in all directions transverse to the longitudinal axis of the optical fiber cable.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: January 16, 2024
    Assignee: CORNING RESEARCH & DEVELOPMENT CORPORATION
    Inventors: Jessica Ruth Abercrombie, Kevin Nicholas Ball, Xiaole Cheng, Jason Clay Lail, Rebecca Elizabeth Sistare, Ellen Anderson Stupka
  • Patent number: 11789228
    Abstract: An optical fiber drop cable including a cable jacket having an outer surface defining the outermost surface of the optical fiber drop cable. The optical fiber drop cable also includes a subunit, a first strength element, and a second strength element. The first strength element, the second strength element, and the subunit are embedded in the cable jacket, and the first strength element, the second strength element, and the subunit are arranged substantially parallel to each other on a first plane. The subunit includes a buffer tube having an inner surface and an outer surface, at least one optical fiber, and a plurality of strengthening yarns. The plurality of strengthening yarns are disposed between the inner surface of the buffer tube and the at least one optical fiber, and the outer surface of the buffer tube is at least partially in contact with the cable jacket.
    Type: Grant
    Filed: November 2, 2021
    Date of Patent: October 17, 2023
    Assignee: CORNING RESEARCH & DEVELOPMENT CORPORATION
    Inventors: George Cornelius Abernathy, Corey Scott Keisler, Jason Clay Lail
  • Patent number: 11782229
    Abstract: An optical fiber cable including a central strength member, a first plurality of tight-buffered ribbon stacks, a binder film, and a cable sheath. The central strength member extends along a longitudinal axis of the optical fiber cable. The tight-buffered ribbon stacks are SZ-stranded around the central strength member. An interstitial space is provided between adjacent tight-buffered ribbon stacks. A binder film continuously and contiguously surrounds the first plurality of tight-buffered ribbon stacks along the longitudinal axis. The binder film includes first portions and at least one second portion. Each of the at least one second portion of the binder film extends into one of the interstitial spaces of the first plurality of tight-buffered ribbon stacks. The cable sheath continuously and contiguously surrounds the binder film along the longitudinal axis, and the cable sheath is coupled to the first portions of the binder film.
    Type: Grant
    Filed: May 9, 2022
    Date of Patent: October 10, 2023
    Assignee: CORNING RESEARCH & DEVELOPMENT CORPORATION
    Inventors: Bradley Jerome Blazer, Julian Latelle Greenwood, III, Warren Welborn McAlpine, David Alan Seddon
  • Patent number: 11782228
    Abstract: An optical fiber cable includes: a sheath including recesses and protrusions that are alternately disposed in a circumferential direction on an outer circumferential surface of the sheath; a core that includes optical fibers and is accommodated in the sheath; and tensile strength members embedded in the sheath. The core is interposed between the tensile strength members in a transverse cross-sectional view. In the transverse cross-sectional view, the tensile strength members are embedded in portions of the sheath facing outward from the core in a first direction in which the two tensile strength members face each other in the transverse cross-sectional view.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: October 10, 2023
    Assignee: Fujikura Ltd.
    Inventors: Akira Namazue, Shogo Shimizu, Go Taki, Okimi Mukai, Ken Osato
  • Patent number: 11714245
    Abstract: Disclosed is an optical cable for distributed sensing. The optical cable comprises a first metal tube with at least two optical fibers loosely arranged therein and a second metal tube with at least two tight buffered optical fibers tightly arranged within an inner surface of the second metal tube. A third metal tube having an inner surface collectively surrounds and operatively contacts the first metal tube and said second metal tube. At least one of the first metal tube and the second metal tube is fixed by means of an adhesive compound to the inner surface of the third metal tube.
    Type: Grant
    Filed: December 30, 2021
    Date of Patent: August 1, 2023
    Assignee: Prysmian S.p.A.
    Inventors: Josep Maria Martin Regalado, Ester Castillo Lopez, Veronica Iglesias Rodriguez
  • Patent number: 11681112
    Abstract: Embodiments of an optical fiber cable are provided. The optical fiber cable includes at least one optical fiber, a buffer tube surrounding the at least one optical fiber, and at least one tensile element wound around the buffer tube. The at least one tensile element has a laylength of at least 200 mm. The optical fiber cable also includes an exterior jacket surrounding the tensile element. The exterior jacket is made up of at least one polyolefin, at least one thermoplastic elastomer, and at least one high aspect ratio inorganic filler. Further, the exterior jacket has an averaged coefficient of thermal expansion of no more than 120 (10?6) m/mK.
    Type: Grant
    Filed: June 7, 2022
    Date of Patent: June 20, 2023
    Assignee: CORNING RESEARCH & DEVELOPMENT CORPORATION
    Inventors: Xiaole Cheng, Michael John Gimblet
  • Patent number: 11657926
    Abstract: The present disclosure relates to a flexible cable for use in moving applications, comprising: one or more insulated cores; a filler layer surrounding the one or more insulated cores, having an external surface defining a filler layer external perimeter substantially forming a closed convex polygonal chain with a plurality of line segments connecting consecutive vertices; and an outer sheath surrounding the filler layer and directly applied on the filler layer, having an external surface defining an outer sheath external perimeter forming a continuous closed curve.
    Type: Grant
    Filed: September 2, 2021
    Date of Patent: May 23, 2023
    Assignee: Prysmian S.p.A.
    Inventors: Ferruccio Garolfi, Valerio Angelo Brambati, Elena Roda
  • Patent number: 11640035
    Abstract: The present disclosure provides an optical fibre cable (100) with high blowing performance. The optical fibre cable (100) includes a plurality of optical fibres (102), a sheath (104) and one or more strength members (106). The sheath (104) envelops the plurality of optical fibres (102). The one or more strength members (106) are embedded in the sheath (104). The one or more strength members (106) embedded in the sheath (104) provides a blowing ratio to the optical fibre cable (100) in a range of about 20 to 45. The blowing ratio is a ratio of cross-sectional area of the sheath (104) to total cross-sectional area of the embedded strength members (106).
    Type: Grant
    Filed: March 22, 2022
    Date of Patent: May 2, 2023
    Assignee: Sterlite Technologies Limited
    Inventor: Sourabh Singh Panwar
  • Patent number: 11630275
    Abstract: Embodiments of an optical fiber cable are provided. The optical fiber cable includes an outer jacket, an inner jacket, a porous insulating layer, and at least one optical fiber. The outer jacket has a first thickness between its inner surface and its outer surface. The inner jacket has a second thickness between its inner surface and its outer surface. The inner jacket is disposed within the outer jacket. The porous insulating layer is disposed between the inner jacket and the outer jacket. The porous insulating layer is configured to reduce the transfer of heat to the inner jacket during combustion of the outer jacket. The optical fiber is disposed within the inner jacket. In the optical fiber cable, the first thickness is less than the second thickness, and each of the outer jacket and the inner jacket include at least one flame retardant additive.
    Type: Grant
    Filed: August 25, 2022
    Date of Patent: April 18, 2023
    Assignee: CORNING RESEARCH & DEVELOPMENT CORPORATION
    Inventors: Harold Edward Hudson, II, William Carl Hurley
  • Patent number: 11624883
    Abstract: A gas leak proof corrugated sheath design for reducing friction in an optical fiber cable (100) includes a plurality of ribbons (102) in a plurality of ribbon bundles (104), one or more water swellable yarns (110), a first layer (106), one or more ripcords (108), one or more strength members (112) and a second layer (114). The first layer, surrounding the plurality of ribbon bundles by the second layer having a plurality of ribs (116) and a plurality of grooves (118) to reduce number of contact points between the optical fiber cable and a duct to reduce coefficient of friction between the second layer and an inner surface of the duct.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: April 11, 2023
    Assignee: Sterlite Technologies Limited
    Inventors: Kishore Sahoo, Vikash Shukla
  • Patent number: 11619797
    Abstract: The present invention discloses a dielectric predictable break load aerial drop cable comprising one or more optical transmission elements, a first layer surrounding the one or more optical transmission elements, a plurality of strength yarns surrounding the first layer, an outer sheath surrounding the plurality of strength yarns. In particular, the outer sheath has a plurality of strength members embedded in an equilateral position. Moreover, the dielectric predictable break load aerial drop cable breaks at a predefined break load with a neutral bending performance.
    Type: Grant
    Filed: September 26, 2021
    Date of Patent: April 4, 2023
    Assignee: Sterlite Technologies Limited
    Inventors: Sashanka Some, Dnyaneshwar Wagh
  • Patent number: 11579357
    Abstract: A fiber optic cable terminal proximally terminates a stub cable carrying one or more optical fibers. The stub cable is structurally adapted to be advanced through at least a portion of a conduit by distally pushing a distal end of the stub cable from a location that is proximal to a proximal end of the conduit and without applying any pulling force at any location that is distal to the proximal end of the conduit.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: February 14, 2023
    Assignee: COMMSCOPE TECHNOLOGIES LLC
    Inventor: Patrick Jacques Ann Diepstraten
  • Patent number: 11506851
    Abstract: Cables having buffer elements formed with two-dimensional fillers are described. A cable may include at least one optical fiber, and a buffer element may be formed around the at least one optical fiber. The buffer element may be formed from a material that includes a polypropylene-containing polymeric resin, a filler added to the polymeric resin that includes a plurality of two-dimensional particles, and an amphiphilic compatabilizer. A jacket may be formed around the at least one optical fiber and the buffer element.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: November 22, 2022
    Assignee: Superior Essex International Inc.
    Inventors: Bo Xu, Christopher W. McNutt
  • Patent number: 11428883
    Abstract: Embodiments of the disclosure relate to an optical fiber cable. The optical fiber cable includes a cable jacket having an inner surface and an outer surface in which the inner surface defines a central bore along a longitudinal axis of the optical fiber cable and the outer surface defines the outermost extent of the cable. One or more embodiments of the cables described herein have improved bending characteristics and performances, respond positively to thermal cycling tests, provide improved anti-buckling characteristics, and have a reduced production cost compared to other known cables.
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: August 30, 2022
    Assignee: CORNING RESEARCH & DEVELOPMENT CORPORATION
    Inventors: Dorota Lagwa, Tomasz Stolarczyk
  • Patent number: 11370898
    Abstract: A flame retardant polymer composition is provided. The polymer composition includes a polymer resin and a flame retardant package dispersed within the polymer resin. The flame retardant package includes an additive of a polyoxometalate ionic liquid (PIL) and a synergist carrier. In particular, the PIL includes organic cations that produce an acid upon heating. Also, a flame retardant optical fiber cable is provided. The cable includes at least one optical fiber and a polymeric jacket that surrounds the at least one optical fiber. The polymeric jacket includes a polymer resin, a carbon source, an acid source, a polyoxometalate ionic liquid (PIL), and a synergist carrier. In particular, the PIL includes organic cations that produce an acid upon heating.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: June 28, 2022
    Assignee: CORNING INCORPORATED
    Inventors: Dayue Jiang, Kevin Andrew Vasilakos
  • Patent number: 11366276
    Abstract: Embodiments of an optical fiber cable are provided. The optical fiber cable includes at least one optical fiber, a buffer tube surrounding the at least one optical fiber, and at least one tensile element wound around the buffer tube. The at least one tensile element has a laylength of at least 200 mm. The optical fiber cable also includes an exterior jacket surrounding the tensile element. The exterior jacket is made up of at least one polyolefin, at least one thermoplastic elastomer, and at least one high aspect ratio inorganic filler. Further, the exterior jacket has an averaged coefficient of thermal expansion of no more than 120(10?6) m/mK.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: June 21, 2022
    Assignee: CORNING RESEARCH & DEVELOPMENT CORPORATION
    Inventors: Xiaole Cheng, Michael John Gimblet
  • Patent number: 11300750
    Abstract: The present disclosure describes a grommet formed of a polymeric material and adapted for bundling a plurality of discrete cables, comprising a main body having a generally cylindrical profile surrounding an interior cavity, the main body further having a length, a thickness, and a longitudinal axis; and a central member integrally coupled to the main body and located within the interior cavity of the main body, the central member extending generally parallel to the longitudinal axis of the main body. Methods of bundling cables are also provided.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: April 12, 2022
    Assignee: CommScope Technologies LLC
    Inventors: Chi-Ming Wang, Aviral Joshi
  • Patent number: 11287591
    Abstract: An optical fiber cable includes: a sheath; and a core that is housed in the sheath and includes an intermittently-adhered optical fiber ribbon including optical fibers and adhesive portions for intermittently adhering the optical fibers in a longitudinal direction. Recesses and protrusions are disposed alternately in a circumferential direction on an outer circumferential surface of the sheath. The recesses each include: two connecting portions respectively connected to radial inner ends of two adjacent protrusions; and a bottom surface positioned between the two connecting portions.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: March 29, 2022
    Assignee: FUJIKURA LTD.
    Inventors: Shogo Shimizu, Akira Namazue, Ken Osato
  • Patent number: 11262521
    Abstract: The disclosed fiber optic cable may include (1) a plurality of optical fibers, (2) a core tube surrounding the plurality of optical fibers, (3) a thixotropic gel filling an interstitial space among the optical fibers within the core tube, (4) an intermediate layer surrounding the core tube, where the intermediate layer includes a plurality of linear elements contra-helically wrapped about the core tube, and (5) an outer layer surrounding the intermediate layer, where the outer layer includes a combination of a moisture-cure cross-linked material and an activation catalyst, where the outer layer is formed by masticating and extruding the combination onto the intermediate layer. Various other cables, assemblies, and methods are also disclosed.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: March 1, 2022
    Assignee: Facebook, Inc.
    Inventor: Wayne Michael Kachmar
  • Patent number: 11143835
    Abstract: The present disclosure provides an optical fiber cable. The optical fiber cable includes a plurality of optical fibers lying substantially along a longitudinal axis of the optical fiber cable. Further, the optical fiber cable includes a first layer surrounding the plurality of optical fibers. Furthermore, the optical fiber cable includes a second layer surrounding the first layer. Furthermore, the optical fiber cable includes a third layer surrounding the second layer. Moreover, the optical fiber cable includes a fourth layer surrounding the third layer. The first layer is a water blocking tape. The second layer is a buffer tube layer made of polyethylene material and foamed with master batch. The third layer is a water blocking tape. The fourth layer is a sheath made of polyethylene material. Moreover, the fourth layer has a plurality of strength members embedded inside the fourth layer.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: October 12, 2021
    Assignee: STERLITE TECHNOLOGIES LIMITED
    Inventors: Sravan Kumar, Kishore Sahoo, Venkatesh Murthy, Atul Mishra, Pavan Moturu, Gahininath Shinde, Mahesh Deshpande, Kangabam Tenzing
  • Patent number: 11125959
    Abstract: The present disclosure provides a flat drop optical fiber cable. The flat drop optical fiber cable includes one or more buffer tubes. The one or more buffer tubes extend substantially along a longitudinal axis of the flat drop optical fiber cable. The flat drop optical fiber cable includes a plurality of optical fiber ribbons. The flat drop optical fiber cable includes one or more water blocking tapes. The one or more water blocking tapes are positioned in the flat drop optical fiber cable in one or more arrangements. The flat drop optical fiber cable includes a cable sheath. The cable sheath encapsulates the one or more buffer tubes and the one or more water blocking tapes. The flat drop optical fiber cable includes a plurality of strength members.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: September 21, 2021
    Assignee: STERLiTE TECHNOLOGiES LiMiTED
    Inventors: Kishore Sahoo, Kangbam Tenzing
  • Patent number: 11042003
    Abstract: A method of fixing and moisture sealing a telecommunications cable that includes a jacket defining a jacket perimeter having a generally non-circular transverse cross-section with respect to an enclosure includes placing an adapter tube over the jacket, the adapter tube defining a perimeter having a generally circular transverse cross-section and a throughhole having a generally non-circular transverse cross-section; compressing the adapter tube around the jacket with a clamp; placing a portion of the adapter tube within a gel block of the enclosure, the gel block being provided at a location different than the location of the clamp; moisture sealing the adapter tube with sealant material of the gel block; and fixing the adapter tube and the telecommunications cable with respect to the enclosure to oppose pulling forces.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: June 22, 2021
    Assignee: CommScope Connectivity Belgium BVBA
    Inventors: Philippe Coenegracht, Mohamed Aznag
  • Patent number: 11011286
    Abstract: A cable includes a plurality of electric wires, which are laid helically around a center of the cable and along a central axis of the cable, and a sheath provided to cover respective peripheries of the plurality of electric wires together. The sheath includes an inner layer sheath made of a urethane resin, and an outer layer sheath provided around an outer periphery of the inner layer sheath to protect the inner layer sheath. The cable may further include a core member at its center. The sheath may be composed of a single layer instead of plural layers.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: May 18, 2021
    Assignee: HITACHI METALS, LTD.
    Inventors: Detian Huang, Yoshinori Tsukamoto, Masanori Kobayashi, Masashi Moriyama, Isao Matsuoka
  • Patent number: 10983269
    Abstract: An optical fiber and a method of fabrication thereof. The optical fiber includes a core; a cladding surrounding the core; a primary metal coating surrounding the cladding and including a noble metal having a melting point of at least 500 degrees Celsius; and a secondary metal coating surrounding the primary coating and having a melting point higher than the melting point of the primary metal coating, a thickness of the primary metal coating being greater than a thickness of the secondary metal coating.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: April 20, 2021
    Assignee: VERRILLON, INC.
    Inventors: John D'Urso, William Paul Jacobsen
  • Patent number: 10955630
    Abstract: An optical fiber cable including an optical fiber ribbon in is pipe, wherein the ribbon includes at least two optical fibers arranged side by side, and wherein at least two of the optical fibers are bonded intermittently along a length of the fibers.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: March 23, 2021
    Inventors: Joseph Cignarale, Doug Baker, Yoshio Hashimoto, Ken Osato
  • Patent number: 10948677
    Abstract: A fiber optic furcation assembly includes a main fiber optic cable structure, a plurality of furcation tubes, and a housing with a cavity including a transition portion. A plurality of optical fibers each continuously and uninterruptedly extends through an end portion of a jacket of the main fiber optic cable structure, the transition portion of the cavity of the housing, and a respective one of the plurality of furcation tubes. In one embodiment, the cavity includes a securing portion including a plurality of protrusions. The plurality of protrusions defines a plurality of locating channels and at least one securing channel that intersects the locating channels. Bonding material is positioned within the securing channel and bonds the plurality of furcation tubes to the plurality of protrusions. In another embodiment, a cable mount includes a housing attachment, a cable jacket attachment, and a passage. The housing attachment is mounted within a port of the housing.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: March 16, 2021
    Assignee: CommScope Technologies LLC
    Inventors: Theo Van Der Meulen, Geert Antoon Parton, Dirk Alexander De Gast, Heidi Bleus, Robert Lantinga
  • Patent number: 10908368
    Abstract: An optical cable, in which a fiber optic core and tensile strength filaments are covered with a covering, is connected to a connecting element incorporated into a connector, wherein a clamping member clamps the end portion of the covering along its outer peripheral surface in a state where the covering has been removed from the end portion of the optical cable such that the fiber optic core and the tensile strength filaments are uncovered; a gripping member that grips the exposed tensile strength filaments in a state where the exposed fiber optic core passes therethrough; and a protective member that covers a range extending from the clamping member to the gripping member in the axial direction of the fiber optic core in a state where the exposed fiber optic core is connected to a connecting element of the connector while the gripping member is attached to the connector.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: February 2, 2021
    Assignee: HIROSE ELECTRIC CO., LTD.
    Inventors: Takeshi Yamazaki, Kentaro Ishii, Ryozo Koyama, Hiroshi Tanooka
  • Patent number: 10884206
    Abstract: The present invention discloses a fiber optical cable with a plurality of bendable optical fiber ribbon. The fiber optical cable with bendable ribbons increases the total fiber counts compared to conventional optical fiber ribbon cables by eliminating empty spaces of the conventional cables due to stacking of the ribbons in the cross-sectionally circular shape of the loose tubes and the cable jacket. According to an embodiment of the present invention, a bendable ribbon will further allow ribbon labeling on a flat side of the ribbon.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: January 5, 2021
    Assignee: STERLITE TECHNOLOGIES LIMITED
    Inventors: Seldon Benjamin, Sravan Kumar, Kishore Sahoo
  • Patent number: 10884208
    Abstract: An optical fiber cable includes: a core; a sheath that accommodates the core therein; and a pair of tension members embedded in the sheath. The core includes: a plurality of optical fiber units that each includes a plurality of optical fibers; fibrous fillings that extend in a longitudinal direction in which the plurality of optical fiber units extends; and a wrapping tube that encloses the plurality of optical fiber units and the fibrous fillings. The core is interposed between the pair of tension members.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: January 5, 2021
    Assignee: Fujikura Ltd.
    Inventors: Tomoaki Kaji, Kouji Tomikawa, Ken Osato
  • Patent number: 10845559
    Abstract: The present disclosure provides a flame retardant optical fiber cable. The flame retardant optical fiber cable includes a plurality of bundle binders. In addition, the flame retardant optical fiber cable includes a first layer, a second layer, a third layer, a fourth layer, a fifth layer, a sixth layer, a seventh layer and an eighth layer. The first layer surrounds a plurality of bundle binders. The second layer surrounds the first layer. The third layer surrounds the second layer. The fourth layer surrounds the third layer. The fifth layer surrounds the fourth layer. The sixth layer surrounds the fifth layer. The seventh layer surrounds the sixth layer. The eighth layer surrounds the seventh layer.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: November 24, 2020
    Assignee: STERLITE TECHNOLOGIES LIMITED
    Inventors: Kishore Sahoo, Venkatesh Murthy, Dnyaneshwar Wagh, Sunil Senapati, Ashutosh Pandey
  • Patent number: 10825578
    Abstract: Example embodiments provide a device that includes a main cable jacket including one or more sub-cable jackets, and each of the sub-cable jackets includes a number of conduits.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: November 3, 2020
    Assignee: Biamp Systems, LLC
    Inventors: Charles D. Gollnick, Joshua Beltran, Rashid Skaf, Joseph E. Andrulis, Aaron Cohen, Kenneth Cornelison, Shirley Briggs, Gregory Saunders
  • Patent number: 10739543
    Abstract: A length of optical fiber has a core, a cladding layer surrounding the core and a coating layer applied over the cladding layer along the fiber for protecting the fiber. The coating layer is applied so that gaps of a certain width are defined intermittently in the coating layer over the length of fiber. The gaps in the coating layer have a depth D that is set to expose the cladding layer enough within the gaps so that the exposed cladding layer and the surrounded core can be fusion spliced or terminated with minimal if any required stripping of the coating layer off of the cladding layer.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: August 11, 2020
    Assignee: OFS FITEL, LLC
    Inventor: Eric J Leichter
  • Patent number: 10566112
    Abstract: A miniature photoelectric composite cable for high-definition video signal transmission includes a flat optical fiber component and a round electrical component. The flat optical fiber component includes a multi-core optical fiber, a strengthening layer, and a light jacket. The round electrical component includes a multi-core electrical cable, a cladding, and an electric jacket. The cladding covers outside the multi-core electrical cable. The optical fiber component and the electrical component are arranged side-by-side.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: February 18, 2020
    Assignee: JIANGSU ZHONGTIAN TECHNOLOGY CO., LTD.
    Inventors: Wei-Wei Miu, Hua Zhou, Xiao-Jian Chen
  • Patent number: 10524466
    Abstract: Apparatuses and methods for providing voltage to a metal layer of an optical cable are provided. The metal layer may be configured to provide an electric shock to an animal upon contact.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: January 7, 2020
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Wolfgang Hartmut Nitsche, John Laureto Maida
  • Patent number: 10502907
    Abstract: The present disclosure relates to a ruggedized female fiber optic connector designed to reduce cost. In one example, features of a fiber optic connector and a fiber optic adapter are integrated into one assembly. In another example, a female ruggedized optic connector is provided with a simple structure having a pre-assembled ferrule alignment sleeve including a ferrule.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: December 10, 2019
    Assignee: CommScope Technologies LLC
    Inventor: Liming Wang
  • Patent number: 10268015
    Abstract: This optical fiber cable comprises an optical unit obtained by creating strands of a plurality of optical fiber tape cores, a tube in which the optical unit is housed, and a cable sheath that covers the outside of an aggregate of a plurality of tubes. The optical fiber tape cores have provided thereto, between some or all of optical fiber cores when a plurality of optical fiber cores are positioned in parallel, and intermittently in the longitudinal direction thereof, connecting parts that connect adjoining optical fiber cores, and non-connecting parts at which adjoining optical fiber cores are not connected. The tube has a Young's modulus lower than the Young's modulus of the cable sheath, and the aggregate is such that the plurality of tubes on the inside of the cable sheath deform elastically with respect to one another, with some thereof being in surface contact with the cable sheath.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: April 23, 2019
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Fumiaki Sato, Keisuke Okada, Yoshiaki Nagao, Nobuyuki Suzuki
  • Patent number: 10254495
    Abstract: The present disclosure relates to a fiber optic connector and cable assembly. The fiber optic connector and cable assembly includes a fiber optic connector, a fiber optic cable, and an anchoring mechanism. The fiber optic connector includes a connector housing and a ferrule assembly having a ferrule and a spring. The fiber optic cable includes at least one optical fiber contained within a cable jacket and at least one strength structure for providing tensile reinforcement to the fiber optic cable. The fiber optic cable is attached to the fiber optic connector and the at least one optical fiber runs from the fiber optic cable through a total length of the fiber optic connector. The anchor mechanism anchors the at least one optical fiber to at least one of the cable jacket and the at least one strength structure.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: April 9, 2019
    Assignee: CommScope Technologies LLC
    Inventor: Yu Lu
  • Patent number: 10215015
    Abstract: A distributed acoustic sensing cable package having a polymer composite extruded over an optical waveguide to encase the waveguide and to form a crystalline matrix layer acoustically coupled to the waveguide. The crystalline matrix includes reinforcement fibers to further enhance transmission of a cable strain to the optical waveguide. During manufacture of the cable, the polymer composite may be extruded over the optical waveguide and subsequently subjected to heat treatment to increase the crystallinity of the polymer composite and increase the elastic modulus. Both axial and radial strain fields are effectively interact with cased fiber waveguide for producing measurable phase shift signal for distributed acoustic noise detection.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: February 26, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Hua Xia, Avinash V. Taware, David A. Barfoot
  • Patent number: 10168503
    Abstract: Enhanced traceability of cables is provided using illumination. An embodiment comprises introducing a chemiluminescent (alternatively, fluorescent) solution into a chamber coupled to at least a portion of an insulating jacket that surrounds a transmission medium, the chamber being initially hollow and, in at least a portion thereof, comprised of a substance through which light is viewable, such that upon introduction of the solution through a port, light emitted by the solution is viewable through at least a portion of the chamber. In another embodiment, a first and second compartment contain a first and second substance, respectively, and are physically separated. When an opening is caused in the physical separation, the substances are allowed to mix, the substances being chosen as providing a chemiluminescent reaction upon the mixing, such that light emitted by the chemiluminescent reaction is viewable.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: January 1, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORTAION
    Inventors: Eric J. Campbell, Sarah K. Czaplewski, Lee N. Helgeson, Jonathan L. Kaus, Pamela L. Lembke
  • Patent number: 10133019
    Abstract: The present disclosure relates to a telecommunications connection device. The device including a housing, a plurality of single-fiber connectorized pigtails that extend outwardly from the housing and a multi-fiber connectorized pigtail that extends outwardly from the housing. The multi-fiber connectorized pigtail can be optically coupled with the single fiber connectorized pigtails. The device can include optical fibers routed from the multi-fiber connectorized pigtail through the housing to the single-fiber connectorized pigtails. The single-fiber connectorized pigtails can be more flexible than the multi-fiber connectorized pigtail.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: November 20, 2018
    Assignee: COMMSCOPE TECHNOLOGIES LLC
    Inventors: Scott C. Kowalczyk, Steven C. Zimmel, James J. Brandt, Oscar Fernando Bran De Leon, Erik J. Gronvall, Trevor D. Smith, Yu Lu, David J. Anderson
  • Patent number: 10120152
    Abstract: An all-dielectric self-supporting (ADSS) cable may include a central strength member and a plurality of buffer tubes helically wrapped around the central member. Each of the plurality of buffer tubes may house at least one optical fiber, and an outer jacket may surround the plurality of buffer tubes and the central strength member. Additionally the central strength member may include a plurality of different strength layers including a first layer formed from relatively flexible material and a second layer formed from relatively rigid material.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: November 6, 2018
    Assignee: Superior Essex International LP
    Inventor: Christopher Robert Evans
  • Patent number: 10032540
    Abstract: A multilayer insulated wire having a polyester-based resin layer formed of a polyester-based resin containing at least a trihydric or higher hydric alcohol constituent on a conductor, and a PEEK resin layer formed of polyether ether ketone or modified polyether ether ketone, directly or by interposing an intermediate layer, on the polyester-based resin layer; a coil formed by winding processing the insulated wire, and electronic/electrical equipment having the coil.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: July 24, 2018
    Assignees: Furukawa Electric Co., Ltd., Furukawa Magnet Wire Co., Ltd.
    Inventors: Ryosuke Obika, Tsuneo Aoi
  • Patent number: 9925389
    Abstract: The present application relates to a shape memory alloy hypotube as well as use thereof in a blood vessel optical fiber guide wire. The hypotube comprises several spiral coils. This hypotube is made from a shape memory alloy such that its diameter varies over temperature. Thus, it can closely wrap an axial fiber disposed therein. Through phase change properties and shape memory properties of the memory alloy, the inner diameter of the hypotube changes over temperature. The hypotube produces two functions: making a wrapping expand and tight binding fixed. The shape memory alloy hypotube can improve the strength and safety of optical fiber guide wire. The hypotube can easily enter the blood vessel of human body. Further, the conventional winding process can be simplified.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: March 27, 2018
    Inventor: Hua Shang
  • Patent number: 9915799
    Abstract: The present invention relates to central loose optical-fiber cables. An exemplary optical-fiber cable includes a central buffer tube that encloses loose optical fibers. Stranded strength yarns surround the central buffer tube and the optical fibers positioned within the central buffer tube's annular space, and a cable jacket surrounds the stranded strength yarns.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: March 13, 2018
    Assignee: Prysmian S.p.A.
    Inventors: Brian G. Risch, Denise Collado
  • Patent number: 9869838
    Abstract: An optical fiber cable is provided. The cable includes: an optical fiber core having a central axis; a presser winding covering the optical fiber core; a sheath covering the presser winding; two tension members in the sheath and facing each other with the central axis therebetween; and two rip cords facing each other with the central axis therebetween and being in direct contact with the sheath and the presser winding. The optical fiber core includes a plurality of optical fiber tapes arranged around the central axis and having mutually different stripe ring marks applied thereon. Each optical fiber tapes includes a plurality of optical fibers intermittently adhered to each other.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: January 16, 2018
    Assignee: FUJIKURA LTD.
    Inventors: Tomoaki Kaji, Masatoshi Ohno, Daiki Takeda, Ken Osato, Masayoshi Yamanaka, Naoki Okada
  • Patent number: 9846105
    Abstract: A high-durability and long-scale-distance fiber grating sensor and a manufacturing method therefor, which relate to the technical field of fiber grating sensors. A fiber grating is disposed on the middle segment of a commercial optical fiber. A bushing, a woven fiber jacket layer, and a packaging structure are disposed on the periphery of the commercial optical fiber. The commercial optical fiber and the bushing therebetween are fixed by using fixing points in the bushing. Anchoring segments are disposed between the fixing points in the bushing and the woven fiber jacket layer. Two ends of the commercial optical fiber are sequentially connected to optical fibers on the anchoring segments and connecting optical fibers. Tail ends of the connecting optical fibers are connected to a transmission cable by using connecting flanges.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: December 19, 2017
    Assignee: SOUTHEAST UNIVERSITY
    Inventors: Zhishen Wu, Caiqian Yang, An Sun, Wan Hong, Yongsheng Tang
  • Patent number: 9669592
    Abstract: A method of manufacturing a fiber optic cable includes manufacturing a subunit and manufacturing an outer portion. Manufacturing the subunit includes extruding a subunit jacket over a first reinforcement material constraining an optical fiber. Manufacturing the outer portion of the fiber optic cable includes extruding an outer jacket over a second reinforcement material between the outer jacket and the subunit jacket. Hoop stress is applied to the second reinforcement material by the outer jacket, which constrains the second reinforcement material such that it is positioned and oriented to provide anti-buckling support to the fiber optic cable and mitigate effects on the optical fiber of jacket shrinkage due to low temperatures.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: June 6, 2017
    Assignee: CORNING OPTICAL COMMUNICATIONS LLC
    Inventors: Bradley Jerome Blazer, Andrew S Dodd, Dieter Erwin Kundis, Sebastian Olszewski
  • Patent number: 9547096
    Abstract: The present disclosure provides an optical fiber cable. The optical fiber cable includes a buffer tube substantially present along a longitudinal axis. Further, the optical fiber cable includes a first layer. The first layer surrounds the buffer tube. Furthermore, the optical fiber cable includes a second layer. The second layer surrounds the first layer. Moreover, the optical fiber cable includes one or more strength members embedded inside the second layer. Further, the buffer tube encloses a plurality of optical fibers. Moreover, each of the plurality of optical fibers is color coded from a set of standard fiber colors and wherein the set of standard fiber colors comprises twelve colors. The first layer and the second layer provide a kink resistance, a crush resistance and flexibility to the optical fiber cable. Each of the one or more strength members is coated with a layer of ethylene acrylic acid.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: January 17, 2017
    Assignee: STERLITE TECHNOLOGIES LIMITED
    Inventors: Sravan Kumar, Roshan Kumar, Kishore Sahoo, Liu Buyong, Shivam Srivastava, Phill Coppin
  • Patent number: 9488793
    Abstract: A combined low attenuation optical communication and power cable is provided. The cable includes a cable body having an inner surface defining a channel within the cable body. The cable includes an optical transmission element located within the channel and a copper electrical conducting element located within the channel. The cable includes a plurality of tensile strength yarn stands located within the channel.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: November 8, 2016
    Assignee: CORNING OPTICAL COMMUNICATIONS LLC
    Inventor: James Arthur Register, III