Patents Represented by Attorney Michael E. Carroll, Jr.
  • Patent number: 8337093
    Abstract: Fiber optic connectors and components for fiber optic connectors with improved side-loading performance are disclosed along with methods for making the same. The fiber optic connector includes a ferrule and a ferrule holder where the ferrule holder may be disposed within a housing. The ferrule holder has a forward portion with a spherical feature for cooperating with the housing, thereby allowing relative movement therebetween. Specifically, the spherical feature of the ferrule holder permits rotational translation of the ferrule holder in two degrees of freedom relative to the housing and inhibits the longitudinal translation of the ferrule holder in same two degrees of freedom relative to the housing, thereby providing improved side-loading performance.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: December 25, 2012
    Assignee: Corning Cable Systems LLC
    Inventor: Louis E. Parkman, III
  • Patent number: 8152385
    Abstract: Duplex fiber optic connectors and fiber optic cable assemblies suitable for polarity reversal along with methods of polarity reversal are disclosed. The duplex fiber optic connector assemblies and fiber optic cable assemblies allow rotation of individual fiber optic connectors within the housing assembly for polarity reversal. In one embodiment, the duplex fiber optic cable assembly may use a single boot and a single fiber optic cable, thereby reducing the backside footprint of the cable assembly for improved access and/or airflow. In another embodiment, the housing of the duplex assembly has integral detents to limit rotation, and may further include a removable trigger mechanism and/or a rotatable boot to facilitate polarity reversal.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: April 10, 2012
    Assignee: Corning Cable Systems LLC
    Inventors: Michael de Jong, Ashley W. Jones, Harley J. Staber
  • Patent number: 8152384
    Abstract: Push-pull fiber optic connectors and cable assemblies having a latch that is actuated by a cam surface are disclosed. The fiber optic connectors include a ferrule and a housing having the latch. A shroud fits over a portion of the housing and allows the craft to grab the shroud and push the shroud and hence the fiber optic connector into a suitable adapter or the like. Likewise, the craft can grab the shroud and pull on the same to remove the fiber optic connector out of the adapter or the like. The cam surface is disposed on a decoupling member, wherein the decoupling member is attached to the shroud so the components can move together. Methods of making the push-pull fiber optic connector are also disclosed.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: April 10, 2012
    Assignee: Corning Cable Systems LLC
    Inventors: Michael de Jong, Paul X. Devereaux, Ashley W. Jones, Ronald L. Mudd
  • Patent number: 7945136
    Abstract: Fiber optic shelf assemblies and furcation mounting structures for securing a plurality of furcation bodies of respective fiber optic cable assembles within the fiber optic shelf are disclosed. In one embodiment, the fiber optic shelf has a one-to-one correspondence between a plurality of respective modules and the respective fiber optic cable assemblies. Additionally, the fiber optic shelf assemblies and furcation mounting structures disclosed advantageously allow the mounting of a relatively large number of furcation bodies within the fiber optic shelf assembly for supporting relatively large fiber optic connections per 1U rack space.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: May 17, 2011
    Assignee: Corning Cable Systems LLC
    Inventors: Terry L. Cooke, David L. Dean, Jr., Tory A. Klavuhn, Harley J. Staber
  • Patent number: 7945135
    Abstract: Embodiments disclosed in the detailed description include a telescoping fiber optic module. The telescoping fiber optic module may be provided in a fiber optic equipment chassis which may be disposed in an equipment rack to support fiber optic connections. In embodiments disclosed herein, the telescoping fiber optic module is comprised of a fixed housing portion having an opening on a front side defining a passage inside the fixed housing portion. The fiber optic module is also comprised of a telescoping portion received in the passage inside the fixed housing portion. In this manner, the telescoping portion can telescope in and out of the fixed housing portion. This allows fiber optic connectors or adapters disposed in the telescoping portion and any connections made thereto to be telescoped out for improved access and telescoped back into the fixed housing portion when access is no longer needed.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: May 17, 2011
    Assignee: Corning Cable Systems LLC
    Inventors: Terry L. Cooke, David L. Dean, Jr., Jose Arturo Urdiales Gonzalez, Tory A. Klavuhn, Manuel Alejandro Lopez Sanchez, Harley J. Staber
  • Patent number: 7918609
    Abstract: A preconnectorized outdoor cable streamlines the deployment of optical waveguides into the last mile of an optical network. The preconnectorized outdoor cable includes a cable and at least one plug connector. The plug connector is attached to a first end of the cable, thereby connectorizing at least one optical waveguide. The cable has at least one optical waveguide, at least one tensile element, and a cable jacket. Various cable designs such as figure-eight or flat cables may be used with the plug connector. In preferred embodiments, the plug connector includes a crimp assembly having a crimp housing and a crimp band. The crimp housing has two half-shells being held together by the crimp band for securing the at least one tensile element. When fully assembled, the crimp housing fits into a shroud of the preconnectorized cable. The shroud aides in mating the preconnectorized cable with a complimentary receptacle.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: April 5, 2011
    Assignee: Corning Cable Systems LLC
    Inventors: Stuart R. Melton, David A. Thompson, Michael J. Gimblet, Hieu V. Tran, Richard S. Wagman, Xin Liu
  • Patent number: 7903925
    Abstract: Fiber optic cable assemblies having a fiber optic cable, a furcation body, and one or more furcated legs are disclosed herein. In embodiments disclosed herein, the furcation body comprises a first end and a second end opposite the first end, the first end having the fiber optic cable extending therefrom, and the second end having one or more furcated legs extending therefrom. The furcation body can include one or more features that facilitate cable management by supporting cabling components used in making fiber optic interconnections. The cable management features of the fiber optic cable assemblies advantageously inhibit sagging, facilitate access to fiber optic interconnections, and/or improve air flow paths between fiber optic interconnections.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: March 8, 2011
    Assignee: Corning Cable Systems LLC
    Inventors: Terry L. Cooke, David L. Dean, Jr., Christopher S. Houser, Tory A. Klavuhn, Clyde B. Mabry, III
  • Patent number: 7881576
    Abstract: A preconnectorized outdoor cable streamlines the deployment of optical waveguides into the last mile of an optical network. The preconnectorized outdoor cable includes a cable and at least one plug connector. The plug connector is attached to a first end of the cable, thereby connectorizing at least one optical waveguide. The cable has at least one optical waveguide, at least one tensile element, and a cable jacket. Various cable designs such as figure-eight or flat cables may be used with the plug connector. In preferred embodiments, the plug connector includes a crimp assembly having a crimp housing and a crimp band. The crimp housing has two half-shells being held together by the crimp band for securing the at least one tensile element. When fully assembled, the crimp housing fits into a shroud of the preconnectorized cable. The shroud aids in mating the preconnectorized cable with a complimentary receptacle.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: February 1, 2011
    Assignee: Corning Cable Systems LLC
    Inventors: Stuart R. Melton, Hieu V. Tran, David A. Thompson, Richard S. Wagman, Michael J. Gimblet, Xin Liu
  • Patent number: 7876992
    Abstract: Disclosed are disposable reels and assemblies for holding a cable, thereby aiding the craft in routing cables such as fiber optic drop cables. The reel has a first flange having at least one first tab and at least one first tab slot and a second flange having at least one second tab and at least one second tab slot. First flange is attached to the second flange to form the disposable reel by at least one first tab engaging at least one second tab slot and at least one second tab engaging the at least one first tab slot, thereby forming a hub for the disposable reel that has an accessible space therein. Additionally, fiber optic cable assemblies can further include a connector on one or more ends.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: January 25, 2011
    Assignee: Corning Cable Systems LLC
    Inventor: Joseph C. Jensen
  • Patent number: 7711232
    Abstract: A method and apparatus for treating a mating portion of a fiber optic connector for reducing an insertion force for the mating portion includes providing a mating portion of a fiber optic connector and treating the mating portion of the fiber optic connector by applying a cleaning and/or lubricating solution thereto to reduce the insertion force of the mating portion.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: May 4, 2010
    Assignee: Corning Cable Systems LLC
    Inventors: Christopher P. Lewallen, James P. Luther, Randy C. Smith, Hieu V. Tran
  • Patent number: 7708469
    Abstract: A fiber optic connector assembly and method for venting gas inside in a fiber optic connector sub-assembly. The fiber optic connector assembly includes a connector sub-assembly including a ferrule and a ferrule holder having a passage extending therethrough. A stiffener tube having a tube body disposed about a portion of at least one optical fiber supports insertion of the optical fiber into the ferrule holder passage. The stiffener tube contains at least one opening in its tube body configured to vent gas trapped inside the stiffener tube during assembly. In this manner, the trapped gas does not form a gas pocket in the bonding agent, which could compromise bonding among the optical fiber, stiffener tube, and connector sub-assembly.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: May 4, 2010
    Assignee: Corning Cable Systems LLC
    Inventors: Xin Liu, Darrin M. Miller, Joel C. Rosson
  • Patent number: 7703990
    Abstract: Furcation bodies and furcation assemblies are disclosed. In one embodiment, a furcation body includes a channel forming a passageway extending from the front end to a back end of the furcation body. The furcation body may accommodate different styles and/or sizes of fiber optic cables. For instance, the furcation body may be secured to either a buffer tube of a buffered drop cable or a cable jacket of an unbuffered drop cable. Additionally, assemblies may include a furcation tube secured to the furcation member back end for protecting the optical fiber extending from the furcation body and/or a fiber optic connector. Furcation assemblies having multiple fibers are also disclosed.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: April 27, 2010
    Assignee: Corning Cable Systems LLC
    Inventors: Michael de Jong, Paul X. Devereaux, Chanh C. Vo
  • Patent number: 7690850
    Abstract: An apparatus for splicing optical waveguides has a memory circuit in which data items which identify a state of the apparatus for splicing the optical waveguides are stored. The memory circuit is used to store data items which identify a state of the optical waveguides to be spliced. Stored data items indicate conditions of the environment in which a splice process has been carried out. The apparatus can be used to record a plurality of data items which can be evaluated for analysis of a splice process, in particular for an analysis of a fault which has occurred during the splice process.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: April 6, 2010
    Assignee: CCS Technology, Inc.
    Inventors: Rainer Matthias Kossat, Christian Heidler
  • Patent number: 7693374
    Abstract: Fiber optic distribution cables and methods for manufacturing the same are disclosed. The methods present one or more optical fibers outward of the protective covering for distribution of the same toward the subscriber. Specifically, the methods include presenting a length of distribution optical fiber outward of the protective covering that is longer than the opening at access location. After the opening is made in the protective covering at the access location, the optical fibers for distribution are selected. Then a tool according to the present invention is positioned about the optical fibers selected for distribution and slid within the protective covering of the fiber optic distribution cable until it reaches a cutting location within the fiber optic distribution cable. Consequently, the tool is positioned for cutting the distribution optical fiber at a cutting location within the fiber optic distribution cable at a downstream location.
    Type: Grant
    Filed: May 11, 2006
    Date of Patent: April 6, 2010
    Assignee: Corning Cable Systems LLC
    Inventors: Joseph T. Cody, Dennis M. Knecht, Christopher Paul Lewallen, James P. Luther
  • Patent number: 7674048
    Abstract: A polarity checking apparatus for multi-fiber connectors includes a body, a diverging lens attached to the body and a screen attached to the body, wherein the apparatus is configured to determine test and/or determine polarity of the multi-fiber connector. The screen may be translucent or may be opaque in part and rotatable for checking whether a signal is being transmitted on an individual optical fiber position of the multi-fiber connector. The invention is also directed to a method for checking the polarity of an optical assembly.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: March 9, 2010
    Assignee: Corning Cable Systems LLC
    Inventors: Julie A. Burnett, Mark E. Conner, Eric S. Quinby
  • Patent number: 7542645
    Abstract: An airline (AL) optical fiber (“AL fiber”) that has an AL region with airlines, with the AL region arranged relative to the fiber core so as to make the fiber bend insensitive. The AL region is capable of supporting one or more higher-order optical modes. One method of reducing multipath interference (MPI) includes accessing a section of the AL fiber and closing at least one of the airlines in the section. This serves to attenuate one or more higher-order modes, which reduces MPI. In one example, the AL fiber has an end section wherein the airlines are filled with a blocking material. An example blocking material is a curable adhesive that is wicked into the airlines via capillary action and then cured when the adhesive reaches a certain depth from the fiber end. In another example, the blocking material is formed by heating the AL fiber section to cause the section to melt and block the airlines, so that the melted AL fiber serves as the blocking material.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: June 2, 2009
    Assignee: Corning Cable Systems LLC
    Inventors: Yan Hua, Elli Makrides-Saravanos, Ming-Jun Li
  • Patent number: 7539380
    Abstract: Disclosed are fiber optic cables and assemblies for routing optical networks closer to the subscriber. The fiber optic cables have a robust design that is versatile by allowing use in aerial application with a pressure clamp along with use in buried and/or duct applications. Additionally, the fiber optic cables and assemblies have a relatively large slack storage capacity for excess length. Assemblies include hardened connectors such as plugs and/or receptacles suitable for outdoor plant applications attached to one or more ends of the fiber optic cables for plug and play connectivity.
    Type: Grant
    Filed: November 26, 2007
    Date of Patent: May 26, 2009
    Assignee: Corning Cable Systems LLC
    Inventors: George C. Abernathy, David A. Seddon, Kenneth D. Temple, Jr.
  • Patent number: 7467896
    Abstract: A preconnectorized outdoor cable streamlines the deployment of optical waveguides into the last mile of an optical network. The preconnectorized outdoor cable includes a cable and at least one plug connector. The plug connector is attached to a first end of the cable, thereby connectorizing at least one optical waveguide. The cable has at least one optical waveguide, at least one tensile element, and a cable jacket. Various cable designs such as figure-eight or flat cables may be used with the plug connector. In preferred embodiments, the plug connector includes a crimp assembly having a crimp housing and a crimp band. The crimp housing has two half-shells being held together by the crimp band for securing the at least one tensile element. When fully assembled, the crimp housing fits into a shroud of the preconnectorized cable. The shroud aides in mating the preconnectorized cable with a complimentary receptacle.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: December 23, 2008
    Assignee: Corning Cable Systems LLC
    Inventors: Stuart R. Melton, David A. Thompson, Michael J. Gimblet, Hieu V. Tran, Richard S. Wagman, Xin Liu
  • Patent number: 7454107
    Abstract: Fiber optic drop cables are disclosed that are suitable for automated preconnectorization. In one embodiment, an optical waveguide is disposed in a buffer tube that has two strength components disposed on opposite sides thereof and a plurality of strength members. The plurality of strength members are disposed at a plurality respective interstices located between the buffer tube and the two strength components and shaped into a plurality of substantially triangular shapes for improving the balancing of the residual stresses in the fiber optic cable caused by the shrinkage of a cable jacket during cooling. In another embodiment, a fiber optic cable includes a tonable lobe connected by a web that is frangible and the web includes predetermined ratios for easily and reliable separation of the tonable lobe.
    Type: Grant
    Filed: November 1, 2005
    Date of Patent: November 18, 2008
    Assignee: Corning Cable Systems LLC
    Inventors: Allen M. Miller, Warren W. McAlpine
  • Patent number: RE42094
    Abstract: Methods are provided for validating the continuity of one or more optical fibers upon which a fiber optic connector is mounted. Typically, the fiber optic connector is mounted upon an optical field fiber by actuating a cam mechanism to secure the optical field fiber in position relative to an optical fiber stub. If subsequent testing indicates that the continuity of the optical field fiber and the optical fiber stub is unacceptable, the cam mechanism can be deactuated, the optical field fiber can be repositioned and the cam mechanism can be reactuated without having to remove and replace the fiber optic connector.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: February 1, 2011
    Assignee: Corning Cable Systems LLC
    Inventors: Brandon A. Barnes, Michael de Jong, Sean M. Kerr, Thomas A. Church, Markus A. Giebel