Tightly Confined (i.e., Fiber Tightly Held Inside The Outer Sheath) Patents (Class 385/102)
  • Patent number: 10613288
    Abstract: Cables are constructed with embedded discontinuities in the cable jacket that allow the jacket to be torn to provide access to the cable core. The discontinuities can be longitudinally extending strips of polymer material coextruded in the cable jacket.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: April 7, 2020
    Assignee: Corning Optical Communications LLC
    Inventors: George Cornelius Abernathy, David Wesley Chiasson, Randall Dwaine Tuttle
  • Patent number: 10598886
    Abstract: A cable pulling assembly includes an enclosure that is adapted for enclosing an end of a fiber optic cable. The enclosure includes a first member that defines a first cavity. The first cavity is adapted to receive a portion of the end of the fiber optic cable. The enclosure further includes a second member that is selectively engaged to the first member. The second member defines a second cavity. The second member is structurally identical to the first member. The enclosure is adapted to transfer a tensile force applied to the enclosure to the strength layer of the fiber optic cable.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: March 24, 2020
    Assignee: CommScope Technologies LLC
    Inventors: Scott C. Kowalczyk, Jonathan Walter Coan, Jonathan R. Kaml
  • Patent number: 10557343
    Abstract: An optical-fiber-containing sensor wire with at least one hermetically sealed optical fiber are provided. An optical-fiber-containing sensor wire may be installed in a cable that can be placed downhole in a wellbore. The optical-fiber-containing sensor wire may include a first optical fiber hermetically sealed within a metallic structure of the optical-fiber-containing sensor wire.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: February 11, 2020
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Colin Allan Wilson, Arthur Hartog
  • Patent number: 10545303
    Abstract: An optical cable and an optical cable assembly having the same are provided. The optical cable includes a plurality of optical fibers each of which includes a core, a clad arranged on an outside of the core, and a coating layer arranged on an outside of the clad; a substantially transparent sheath in which the plurality of optical fibers are arranged; and a substantially transparent filler configured to fill a space between the sheath and the plurality of optical fibers.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: January 28, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-hwa Choi, Chang-hun Bae, Young-ki Ko, Byung-ju Kwak, Sun-woo Kim, Woo-sub Bang, Sung-ki Son
  • Patent number: 10514513
    Abstract: A method and apparatus for coupling fiber bundles. A plurality of fibers are secured within a channel of a fastener system to place the plurality of fibers in a packing configuration within the channel. The fastener system and the plurality of fibers secured by the fastener system are cut through to create a first fiber bundle and a second fiber bundle. The first fiber bundle is coupled with the second fiber bundle.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: December 24, 2019
    Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: Jonathan Halderman, Rumen Deyanov
  • Patent number: 10488609
    Abstract: An intermittent-connection-type optical fiber ribbon in which a plurality of optical fiber core wires are disposed in parallel, and which includes: a connecting part where adjacent optical fiber core wires are connected; and a non-connecting part where adjacent optical fiber core wires are not connected, the connecting parts and the non-connecting parts are provided intermittently in a longitudinal direction, the non-connecting parts are not provided in the longitudinal direction between two the optical fiber core wires, the connecting part is recessed, and in a case where, in the longitudinal direction, a is length of the connecting part, b is length of a part where the non-connecting part between different optical fiber core wires overlap, c is length of the non-connecting part, and p is an interval of the connecting parts, c/a?1.5, b?50 mm, and (c/a)×p?200 mm are set.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: November 26, 2019
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Fumiaki Sato, Kenta Tsuchiya, Keisuke Okada, Yoshiaki Nagao, Nobuyuki Suzuki
  • Patent number: 10386594
    Abstract: A tactical deployable cable is provided. The cable includes a fiber optic unit. The fiber optic unit includes a plurality of optical fibers, each of the plurality of optical fibers having a maximum nominal outer diameter of less than or equal to about 250 microns. The fiber optic unit further includes a UV cured resin layer surrounding and encapsulating the plurality of optical fibers. The fiber optic unit further includes a thermoplastic elastomer buffer layer surrounding the UV cured resin layer. The cable may include a thermoplastic jacket surrounding the fiber optic unit, and a plurality of strength members disposed between the jacket and the fiber optic unit.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: August 20, 2019
    Assignee: AFL Telecommunications LLC
    Inventors: Justin Quinn, Craig Stratton
  • Patent number: 10357313
    Abstract: A steerable laser probe may include a handle having a handle distal end and a handle proximal end, a plurality of actuation controls of the handle, a flexible housing tube having a flexible housing tube distal end and a flexible housing tube proximal end, and an optic fiber disposed within an inner bore of the handle and the flexible housing tube. An actuation of an actuation control of the plurality of actuation controls may gradually curve the flexible housing tube. A gradual curving of the flexible housing tube may gradually curve the optic fiber. An actuation of an actuation control of the plurality of actuation controls may gradually straighten the flexible housing tube. A gradual straightening of the flexible housing tube may gradually straighten the optic fiber.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: July 23, 2019
    Assignee: KATALYST SURGICAL, LLC
    Inventors: Gregg D Scheller, Matthew N Zeid
  • Patent number: 10345545
    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 28, 2017
    Date of Patent: July 9, 2019
    Assignee: FUJIKURA LTD.
    Inventors: Tomoaki Kaji, Masatoshi Ohno, Daiki Takeda, Ken Osato, Masayoshi Yamanaka, Naoki Okada
  • Patent number: 10302891
    Abstract: Cables are constructed with embedded discontinuities in the cable jacket that allow the jacket to be torn to provide access to the cable core. The discontinuities can be longitudinally extending strips of polymer material coextruded in the cable jacket.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: May 28, 2019
    Assignee: Corning Optical Communications LLC
    Inventors: George Cornelius Abernathy, David Wesley Chiasson, Randall Dwaine Tuttle
  • Patent number: 10290395
    Abstract: A conductive path protection structure includes a first protector configured to accommodate a conductive path therein and to protect the conductive path, and a second protector configured to accommodate the first protector therein. An identification mark for identifying a specification of the conductive path is provided on a peripheral surface of the first protector. The second protector is formed with an opening configured to expose the identification mark therethrough to an outside of the second protector.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: May 14, 2019
    Assignees: YAZAKI CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kenta Yanazawa, Tatsuyoshi Ueta, Takuma Miyazaki, Yoshiyuki Ishihara
  • Patent number: 10254493
    Abstract: A cable includes a guide element and a signal line. The guide element extends flatly on a guide plane, and the signal line is guided along a winding path on the guide plane by the guide element. The signal line has multiple bends on the guide plane. In particular, the cable is suitable for use under high stretching loads by virtue of the winding course of the signal line. The cable is simultaneously particularly space-saving in that the line is guided solely within the guide plane. A method for producing the cable is also provided.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: April 9, 2019
    Assignee: LEONI Kabel GmbH
    Inventors: Johannes Bredl, Volker Schramm
  • Patent number: 10213341
    Abstract: A laser probe with a replaceable optic fiber may include a reusable handle, a reusable housing tube, a reusable handle adapter, a reusable machine adapter, and a replaceable optic fiber. The handle adapter may interface with a proximal end of the handle. The machine adapter may interface with a surgical machine. The replaceable optic fiber may include an optic fiber having a first optic fiber end and a second optic fiber end, a first connector, and a second connector. The optic fiber may be disposed within the first connector and the second connector. The first connector may be temporarily fixed within the handle adapter and the second connector may be temporarily fixed within the machine adapter.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: February 26, 2019
    Inventors: Gregg D Scheller, Matthew N Zeid
  • Patent number: 10215942
    Abstract: The present disclosure discloses a high-temperature resistant and small-diameter optical cable and a preparation method thereof. The high-temperature resistant and small-diameter optical cable is prepared by using acrylate as a coating material, using PHB/PET liquid crystal copolyester as an outer protective layer material and using an extrusion process. Compared to traditional optical cables, the novel optical cable has advantages in small diameter, low loss attenuation, good microbending property, excellent mechanical property, long one-time finished length (10 km˜26 km), long storage time, simple preparation process and wide operating temperature range.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: February 26, 2019
    Assignee: HENGTONG OPTIC-ELECTRIC CO., LTD.
    Inventors: Peidong Liu, Peng Cao, Zengqiang Zhang, Jicheng Yin, Chuanwu Xuan, Junxiong Wu, Xinhua Shen, Qiang Li, Hongzhou Pan, Di Wu, Zhongkai Wang, Shan Xu, Lihua Sun
  • Patent number: 10209468
    Abstract: An optical fiber unit for air-blown installations includes a number of optical conductors, a first layer of resin material, a second layer of resin material radially outer to the first layer of resin material and a sheath of a thermoplastic material, wherein the second layer of resin material has a secant modulus higher than a secant modulus of the first layer of resin material and wherein the sheath of thermoplastic material is over and in close contact with the second layer of resin material.
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: February 19, 2019
    Assignee: PRYSMIAN S.p.A
    Inventors: Ralph Sutehall, Martin Davies, Nathan Paddick, Paul Roberts, Ian Dewi Lang, Mark Richard Mason
  • Patent number: 10201452
    Abstract: A laser probe with a replaceable optic fiber may include a reusable handle, a reusable housing tube, a reusable handle adapter, a reusable machine adapter, and a replaceable optic fiber. The handle adapter may interface with a proximal end of the handle. The machine adapter may interface with a surgical machine. The replaceable optic fiber may include an optic fiber having a first optic fiber end and a second optic fiber end, a first connector, and a second connector. The optic fiber may be disposed within the first connector and the second connector. The first connector may be temporarily fixed within the handle adapter and the second connector may be temporarily fixed within the machine adapter.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: February 12, 2019
    Assignee: KATALYST SURGICAL, INC.
    Inventors: Gregg D Scheller, Matthew N Zeid
  • Patent number: 10162115
    Abstract: Two-port optical retro-reflectors with high isolation and high return loss are described. Such retro-reflectors are designed to increase the number of optical filtering using one or more filters uniquely disposed to increase the isolation and return loss.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: December 25, 2018
    Assignee: Alliance Fiber Optic Products, Inc.
    Inventors: Bruce Peng, Andy Zhou, Yao Li
  • Patent number: 10101549
    Abstract: Optical fiber ribbons each comprise a plurality of optical fiber strands bonded in parallel. In the optical fiber ribbons, adjacent optical fiber strands are bonded by bonding sections that are intermittently bonded at prescribed intervals. The positions of the bonding section for all optical fiber ribbons are mutually offset in the longitudinal direction. In other words, the longitudinal-direction positions of the bonding section for the optical fiber ribbons never exactly match.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: October 16, 2018
    Assignee: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yutaka Hoshino, Noboru Okada
  • Patent number: 10078195
    Abstract: Cables are constructed with embedded discontinuities in the cable jacket that allow the jacket to be torn to provide access to the cable core. The discontinuities can be longitudinally extending strips of polymer material coextruded in the cable jacket.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: September 18, 2018
    Assignee: Corning Optical Communications LLC
    Inventors: George Cornelius Abernathy, David Wesley Chiasson, Randall Dwaine Tuttle
  • Patent number: 10049789
    Abstract: An opto-electrical cable may include an opto-electrical cable core and a polymer layer surrounding the opto-electrical cable core. The opto-electrical cable core may include a wire, one or more channels extending longitudinally along the wire, and one or more optical fibers extending within each channel. The opto-electrical cable may be made by a method that includes providing a wire having a channel, providing optical fibers within the channel to form an opto-electrical cable core, and applying a polymer layer around the opto-electrical cable core. A multi-component cable may include one or more electrical conductor cables and one or more opto-electrical cables arranged in a coax, triad, quad configuration, or hepta configuration. Deformable polymer may surround the opto-electrical cables and electrical conductor cables.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: August 14, 2018
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Joseph Varkey, David Kim, Maria Grisanti, Burcu Unal Altintas
  • Patent number: 10036867
    Abstract: Enhanced traceability of cables is provided using illumination. An embodiment comprises introducing a chemiluminescent (alternatively, flourescent) 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, 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 by a separator material. The separator material, when triggered to open, forms an opening between the compartments that allows the substances 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: August 31, 2016
    Date of Patent: July 31, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Eric J. Campbell, Sarah K. Czaplewski, Lee N. Helgeson, Jonathan L. Kaus, Pamela L. Lembke
  • Patent number: 10031303
    Abstract: Methods for forming tight buffered cables containing a strippable buffer layer are described. An optical fiber may be provided, and a buffer layer formed from a polymeric material may be extruded around the optical fiber. The buffer layer may be compressed while the polymeric material is cooling following extrusion. The compression may facilitate subsequent loosening of the buffer layer from the optical fiber based at least in part upon stress relaxation of the buffer layer.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: July 24, 2018
    Assignee: Superior Essex International LP
    Inventor: Christopher W. McNutt
  • Patent number: 10008306
    Abstract: A cable includes a transmission cord having two connecting terminals formed on two opposite ends thereof, two connectors respectively mounted on the two connecting terminals of the transmission cord, two end caps mounted on the transmission cord and respectively connected with the two connectors, and at least one demagnetizing layer mounted on the two connectors and received in the two end caps. The transmission cord includes a conducting wire, an insulating layer wrapped around the conducting wire to insulate the conducting wire, and a protective layer wrapped around an outer face of the transmission cord. The at least one demagnetizing layer is made of graphene to prevent the electromagnetic waves of the ambient environment from interfering with the signal transmission of the transmission cord.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: June 26, 2018
    Inventor: Li-Fen Wu
  • Patent number: 9989723
    Abstract: An optical fiber ribbon comprises a plurality of optical fiber strands that are arranged side-by-side in one direction and integrated. The optical fiber ribbon comprises a plurality of optical fiber strands that are bonded in parallel. In the optical fiber ribbon, the adjacent optical fiber strands are bonded using a bonding section in which the same are continuously bonded along the entire length thereof and a bonding section in which the same are intermittently bonded at prescribed intervals. In other words, either of the bonding sections is formed between the adjacent optical fiber strands.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: June 5, 2018
    Assignee: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yutaka Hoshino, Noboru Okada, Tatsuya Oyama
  • Patent number: 9927590
    Abstract: A fiber optic cable includes core elements, a composite film surrounding the core elements, and a jacket surrounding the composite film. The core elements include one or more optical fibers and at least one tube surrounding the one or more optical fibers. The composite film includes a first layer adjoining a second layer, where the composition of the second layer differs from the first. The composite film is relatively thin, having an average thickness over a 10-meter length of the cable that is less than half an average thickness of the jacket over the 10-meter length.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: March 27, 2018
    Assignee: Corning Optical Communications LLC
    Inventors: David Wesley Chiasson, Warren Welborn McAlpine, Joel Laine Parker
  • Patent number: 9888965
    Abstract: A steerable laser probe may include a handle having a handle distal end and a handle proximal end, a plurality of actuation controls of the handle, a flexible housing tube having a flexible housing tube distal end and a flexible housing tube proximal end, and an optic fiber disposed within an inner bore of the handle and the flexible housing tube. An actuation of an actuation control of the plurality of actuation controls may gradually curve the flexible housing tube. A gradual curving of the flexible housing tube may gradually curve the optic fiber. An actuation of an actuation control of the plurality of actuation controls may gradually straighten the flexible housing tube. A gradual straightening of the flexible housing tube may gradually straighten the optic fiber.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: February 13, 2018
    Assignee: Katalyst Surgical, LLC
    Inventors: Gregg D Scheller, Matthew N Zeid
  • Patent number: 9877867
    Abstract: A steerable laser probe may include a handle having a handle distal end and a handle proximal end, a plurality of actuation controls of the handle, a housing tube having a housing tube distal end and a housing tube proximal end, and an optic fiber disposed within an inner bore of the handle and the housing tube. An actuation of an actuation control of the plurality of actuation controls may gradually curve the housing tube. A gradual curving of the housing tube may gradually curve the optic fiber. An actuation of an actuation control of the plurality of actuation controls may gradually straighten the housing tube. A gradual straightening of the housing tube may gradually straighten the optic fiber.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: January 30, 2018
    Assignee: Katalyst Surgical, LLC
    Inventors: Gregg D Scheller, Matthew N Zeid
  • Patent number: 9823431
    Abstract: Aspects of this disclosure relate to a cable that includes an outer housing, a plurality of optical fibers within the outer housing and arranged side-by-side along the width of the cable; and a removably attached access layer within the outer housing.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: November 21, 2017
    Assignee: Google LLC
    Inventors: David Frank Lish, Ben Warren Segura, David Anthony, John Toccalino, Paul Steven Rader, David Miles
  • Patent number: 9808143
    Abstract: An optogenetic probe, an optogenetic system, and a method for fabricating an optogenetic probe are provided. The optogenetic probe has a proximal and a distal end, and includes an elongated body made of a body glass material and extending longitudinally between the proximal and distal ends. The optogenetic probe also includes at least one optical channel, each including an optical channel glass material having a refractive index larger than a refractive index of the body glass material, so as to guide light therealong. The optogenetic probes also includes at least one electrical channel, each including an electrical channel structure having an electrical conductivity larger than the electrical conductivity of the body glass material, so as to conduct electricity therealong. The optogenetic probe further includes at least one fluidic channel, each adapted for transporting fluid therealong. Each optical, electrical and fluidic channel extends longitudinally within the elongated body.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: November 7, 2017
    Assignee: UNIVERSITE LAVAL
    Inventors: Jean-François Viens, Jean-François Gravel, Younès Messaddeq, Yannick Ledemi, Maxime Rioux
  • Patent number: 9784049
    Abstract: Tubing encapsulated cable consists of one or more electrical conductors and possibly one or more fiber optic cables sheathed in a corrosion resistant metallic alloy. However, pumping during the installation of tubing encapsulated cable is required to overcome the capstan effect of the tubing encapsulate cable inside the coil tubing as the tubing encapsulated cable travels through the coiled up wraps of coil tubing. In an embodiment of the invention the tubing encapsulated cable consists of one or more electrical conductors and possibly one or more fiber optic cables sheathed in a fiber reinforced composite sheath. Because there is little drag between the fiber encapsulated cable and the coil tubing, conventional pumping operations used to install braided wireline into coil tubing may not be required when installing fiber encapsulated cable into coil tubing.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: October 10, 2017
    Inventor: Scott Sherman
  • Patent number: 9770364
    Abstract: A steerable laser probe may include an actuation structure, a nosecone fixed to the actuation structure by one or more links and one or more link pins, a housing tube having a first housing tube portion with a first stiffness and a second housing tube portion with a second stiffness, and an optic fiber disposed in the housing tube and the actuation structure. A compression of the actuation structure may be configured to gradually curve the housing tube and the optic fiber. A decompression of the actuation structure may be configured to gradually straighten the housing tube and the optic fiber.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: September 26, 2017
    Assignee: Katalyst Surgical, LLC
    Inventors: Gregg D Scheller, Matthew N Zeid
  • Patent number: 9770296
    Abstract: A steerable laser probe may include a handle having a handle distal end and a handle proximal end, a plurality of actuation controls of the handle, a flexible housing tube having a flexible housing tube distal end and a flexible housing tube proximal end, and an optic fiber disposed within an inner bore of the handle and the flexible housing tube. An actuation of an actuation control of the plurality of actuation controls may gradually curve the flexible housing tube. A gradual curving of the flexible housing tube may gradually curve the optic fiber. An actuation of an actuation control of the plurality of actuation controls may gradually straighten the flexible housing tube. A gradual straightening of the flexible housing tube may gradually straighten the optic fiber.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: September 26, 2017
    Assignee: Katalyst Surgical, LLC
    Inventors: Gregg D Scheller, Matthew N Zeid
  • Patent number: 9704617
    Abstract: A production method for a headline sonar cable (20, 120) that exhibits a high breaking-strength and lighter weight than a conventional steel headline sonar cable. Producing the headline sonar cable (20, 120) is characterized by the steps of: a. providing an elongatable internally-located conductive structure (34, 134) that is adapted for data signal transmission; and b. braiding a strength-member jacket layer (52) of polymeric material around the structure (34, 134) while ensuring that the structure (34, 134) is slack when surrounded by the jacket layer (52). The structure (34, 134) of the cable (20, 120) retains conductivity upon stretching of the jacket layer (52) surrounding the structure (34, 134) that lengthens the cable (20, 120). For one embodiment of the method a conductor (20) wrapped around a rod (24) and enclosed within a sheath layer (32) forms the structure (34, 134).
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: July 11, 2017
    Assignee: Hampidjan hf
    Inventor: Hjortur Erlendsson
  • Patent number: 9690062
    Abstract: A flame-retardant fiber optic cable includes core elements, a film surrounding the core elements, and a jacket surrounding the film. The core elements include one or more optical fibers and at least one tube surrounding the one or more optical fibers. The material composition of the film differs from the jacket and the film is relatively thin.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: June 27, 2017
    Assignee: CORNING OPTICAL COMMUNICATIONS LLC
    Inventors: William Carl Hurley, Ravinder Kumar Kinnera, Warren Welborn McAlpine, Joel Laine Parker, Christopher Mark Quinn
  • Patent number: 9664872
    Abstract: Cables are constructed with embedded discontinuities in the cable jacket that allow the jacket to be torn to provide access to the cable core. The discontinuities can be longitudinally extending strips of polymer material coextruded in the cable jacket.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: May 30, 2017
    Assignee: CORNING OPTICAL COMMUNICATIONS LLC
    Inventors: Michael John Gimblet, Julian Latelle Greenwood, III
  • Patent number: 9590318
    Abstract: A modular high power, low passive intermodulation, active, universal, distributed antenna system interface tray that includes one or more front-end RF frequency duplexers instead of a high power, low passive intermodulation attenuator to achieve superior FIM performance. A cable switch matrix allows for the use of the system among varying power levels* and accomplishes the above in a modular architecture.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: March 7, 2017
    Assignee: Intel Corporation
    Inventors: Nader Famili, Purna C. Subedi, Yatin Buch, Jason Cook, Changru Zhu, George Sideris, Robert Balue
  • Patent number: 9536640
    Abstract: A furcation tube for optical fibers has a polymer inner jacket surrounded by a fiber and strength member layer of fibers and strength rods, which is surrounded by a polymer outer jacket. The inner jacket may surround a plurality of inner tubes. The strength members may be arrayed around the inner jacket generally equidistant from one another. The strength members may be resin pultruded fiber rods and the fiber may be para-aramid fibers.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 3, 2017
    Assignee: CommScope Technologies LLC
    Inventor: Nahid Islam
  • Patent number: 9529167
    Abstract: An optical cable module and a method for manufacturing the same are disclosed. The optical cable module comprises a connector and an optical cable, and the optical cable is connected to the connector. A wavelength of at least one optical signal emitted from a laser of the connector is in a range of 380 nm to 980 nm. The optical cable comprises at least one optical fiber and an outer cladding layer, and the outer cladding layer surrounds the optical fiber, and the outer cladding layer includes at least one transparent portion, and at least one portion of the optical signal is leaked from the optical fiber and passes through the transparent portion to the surrounding environment.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: December 27, 2016
    Assignee: LISEEN CORPORATION
    Inventor: Chang-cherng Wu
  • Patent number: 9523831
    Abstract: An optical cable module is disclosed. The optical cable module comprises a connector and an optical cable, and the optical cable is connected to the connector. The optical cable comprises at least one optical fiber, an outer cladding layer and a power line, and the outer cladding layer surrounds the at least one optical fiber and the power line, and the power line is configured to supply an electrical power.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: December 20, 2016
    Assignee: Liseen Corporation
    Inventor: Chang-Cherng Wu
  • Patent number: 9325142
    Abstract: An optical fiber propagates a light beam at a predetermined wavelength at least in an LP01 mode and an LP02 mode. A dopant that changes a Young's modulus is doped to at least a part of a waveguide region 12a of a cladding 12 through which a light beam at a predetermined wavelength is propagated and to a region 11b in a core 11 in which the intensity of the light beam in the LP01 mode is greater than the intensity of the light beam in the LP02 mode. At least a part of the Young's modulus in the waveguide region 12a of the cladding 12 is smaller than a Young's modulus in the region 11b in the core 11 in which the intensity of the light beam in the LP01 mode is greater than the intensity of the light beam in the LP02 mode.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: April 26, 2016
    Assignee: FUJIKURA LTD.
    Inventor: Masahiro Kashiwagi
  • Patent number: 9255822
    Abstract: A splicable fiber optic sensing system includes, a core, a sheath surrounding the core, an adhesive disposed between the core and the sheath at some locations and not at other locations, and at least one optical fiber disposed between the core and the sheath being sense transmissively locked to the core by the adhesive at the locations containing the adhesive.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: February 9, 2016
    Assignee: Baker Hughes Incorporated
    Inventors: Carl W. Stoesz, Brooks A. Childers
  • Patent number: 9244241
    Abstract: An optical fiber package comprising an adhesive for coating optical fibers comprising part A and part B wherein Part A is an aqueous polymeric emulsion of 2-ethylhexylacrylate or butyl acrylate and acrylic acid or methacrylic acid and Part-B is polyvinylbutyral dissolved in isopropyl alcohol. The said system imparts stability to the optical fiber on long range exposure thereby improving performance.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: January 26, 2016
    Assignee: DIRECTOR GENERAL DEFENCE, RESEARCH & DEVELOPMENT ORGANISATION MINISTRY OF DEFENSE, GOVT. OF INDIA
    Inventors: Krishnamurti Nori, Nayak Jagannath, Kumar Pradeep, Ramesh Babu Badri, MD Azeemuddin
  • Patent number: 9244237
    Abstract: An optical fiber with a resilient jacket is disclosed. The optical fiber includes a cushion layer overlying the optical fiber in which the cushion layer is formed from a plurality of cushion members. The cushion members can be tubes that are hollow or that are partially or completely filled with a soft thermoplastic material. A polymeric sleeve overlies the cushion layer.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: January 26, 2016
    Assignee: TYCO ELECTRONICS CORPORATION
    Inventor: Ashok K. Mehan
  • Patent number: 9213134
    Abstract: A multi-core optical fiber may include a cladding with a cross section having a central region and an outside diameter. Multiple transmission cores are arranged symmetrically within the central region of the cladding, extending parallel to a central axis of the multi-core optical fiber. Multiple alignment cores are arranged within the cladding, extending parallel to the central axis of the multi-core optical fiber and near the outside diameter of the cladding so that each of the multiple alignment cores are visible through a side view of the cladding. Ends of similarly configured multi-core optical fibers may be mated and aligned. Alignment cores of a first multi-core optical fiber may be aligned with alignment cores of a second multi-core optical fiber using a side view of the mating interface. Aligning the alignment cores causes multiple transmission cores with the multi-core optical fibers to also align.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: December 15, 2015
    Assignee: Verizon Patent and Licensing Inc.
    Inventor: David Z. Chen
  • Patent number: 9207419
    Abstract: A process for manufacturing fiber optic overhead ground wire cable may include: providing an optical core; providing a reinforcing structure consisting of at least one layer of wires onto the optical core, wherein at least part of the wires are clad with first metallic material; extruding an outer layer onto the reinforcing structure, wherein the outer layer is made of second metallic material having a softening point substantially similar to a softening point of the first metallic material; and cooling the outer layer immediately after extruding the outer layer. A fiber optic overhead ground wire cable may include: an optical core comprising a plurality of optical fibers housed in an inner tube; and a reinforcing structure consisting of at least one layer of wires stranded onto the optical core. The cable may be substantially devoid of interstices between the at least one layer of wires and the inner tube.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: December 8, 2015
    Assignee: PRYSMIAN S.P.A.
    Inventors: Josep Martin Regalado, Josep Maria Batlle I Ferrer, Josep Oriol Vidal Casanas, Valentina Ghinaglia, Lluis-Ramon Sales Casals
  • Patent number: 9140868
    Abstract: A process for manufacturing submarine optical communications cable may include: providing an optical core; providing a reinforcing structure consisting of at least one layer of wires onto the optical core, wherein at least part of the wires are clad with first metallic material; extruding an outer layer onto the reinforcing structure, wherein the outer layer is made of second metallic material having a softening point substantially similar to a softening point of the first metallic material; and cooling the outer layer immediately after extruding the outer layer. A submarine optical cable may include: an optical core comprising a plurality of optical fibers housed in an inner tube; and a reinforcing structure consisting of at least one layer of wires stranded onto the optical core. The cable may be substantially devoid of interstices between the at least one layer of wires and the inner tube.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: September 22, 2015
    Assignee: PRYSMIAN S.P.A.
    Inventors: Josep Martin Regalado, Josep Maria Batlle I Ferrer, Josep Oriol Vidal Casanas
  • Patent number: 9116322
    Abstract: Cables including strength members that limit elongation of an outer jacket are described. A cable may include any number of transmission media, such as optical fibers, positioned within one or more cable cores or openings defined by an outer jacket. Additionally, at least one strength member may be in contact with the outer jacket. The at least one strength member may include central core or member and an external coating formed around or surrounding the central core. The external coating may be formed of one or more materials that limit elongation of the outer jacket to less than approximately 20 mm at temperatures up to approximately 70° C.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: August 25, 2015
    Assignee: Superior Essex International LP
    Inventor: Jeffrey Scott Laws
  • Publication number: 20150139593
    Abstract: An optical fiber cable includes an optical fiber core wire; a pair of tension members extending parallel to each other in an extension direction of the optical fiber core wire, sandwiching the optical fiber core wire; and a rectangular jacket covering the optical fiber core wire and the pair of tension members, and in a cross-section orthogonal to the extension direction, having a major axis in a facing direction of the tension members and a minor axis in a direction orthogonal to the facing direction, wherein each of the tension members is glass fiber reinforced plastic having a diameter in a range of 0.7 mm or more and 1 mm or less, and the jacket has a friction coefficient of 0.3 or less, the major axis of 4 mm or less, and the minor axis of 2.8 mm or less.
    Type: Application
    Filed: April 4, 2013
    Publication date: May 21, 2015
    Applicant: FUJIKURA LTD.
    Inventors: Satoru Shiobara, Naoki Okada, Takao Fukute
  • Publication number: 20150131952
    Abstract: A fire resistant optical communication cable is provided. The fire-resistant optical communication cable includes an extruded cable body including an inner surface defining a passage in the cable body and an outer surface. The fire-resistant optical communication cable includes a plurality of elongate optical transmission elements located within the passage of the cable body. The fire-resistant optical communication cable includes a layer of intumescent particles embedded in the material of the cable body forming an intumescent layer within the cable body. The cable may include one or more elements having flame resistant coatings that, upon exposure to heat, form a ceramic layer increasing the combustion time of the coated element.
    Type: Application
    Filed: November 12, 2013
    Publication date: May 14, 2015
    Applicant: Corning Cable Systems LLC
    Inventors: Emanuela Gallo, William Carl Hurley, Christopher Mark Quinn, Waldemar Stöcklein
  • Patent number: 9031369
    Abstract: The embodiments disclosed herein seek to eliminate substantially all of the voids or air gaps among neighboring fibers within a CFU by wetting a plurality of optical fibers that comprises the CFU with an acrylate prepolymer resin before the plurality of the optical fibers are grouped together tightly. In one embodiment, instead of extruding a first acrylate prepolymer resin to the optical fibers immediately after a first die, the disclosed process wets the optical fibers with a first acrylate prepolymer resin prior to the first die.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 12, 2015
    Assignee: OFS Fitel, LLC
    Inventors: Harold P Debban, Timothy Goddard, Heng Ly, Peter A Weimann