Structure Rearward Of Optical Fiber End Face To Secure Additional Fiber Or Cable Layers Patents (Class 385/86)
  • Patent number: 8452151
    Abstract: A cable retainer assembly comprising a cable retainer and a cable retainer bracket for retaining a cable to a fixed location. The cable retainer is positioned on an arbitrary portion of the cable and then secured to a cable retainer assembly such that one or more cables can be secured and organized.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: May 28, 2013
    Assignee: ADC Telecommunications, Inc.
    Inventors: Michael D. Schroeder, Mark Smrha
  • Patent number: 8430573
    Abstract: An optical connector housing includes: a housing portion, which is capable of housing an optical connector having an arm retuning to a given posture by an elastic force of the arm, and which includes an exposure opening exposing an end portion of the housed optical connector; a stopper which restricts the optical connector from moving forward in an axial direction of the optical connector at such a position that the end portion of the optical connector projects from the exposure opening; and a push member which pushes the arm forward in the axial direction and which permits the housed optical connector to move backward in the axial direction.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: April 30, 2013
    Assignee: Fujitsu Limited
    Inventor: Takayuki Watanabe
  • Publication number: 20130094816
    Abstract: A boot for an optical fiber connector according to the present invention is provided. The boot includes a hollow cylindrical body defining an axial direction, a protrusion portion formed on the cylindrical body, and a member with the property of plasticity disposed in the protrusion portion, wherein the member has at least one protrusion formed thereon The at least one protrusion sticks in the protrusion portion formed on the cylindrical body.
    Type: Application
    Filed: October 18, 2011
    Publication date: April 18, 2013
    Applicants: SENKO ADVANCED COMPONENTS, INC., PROTAI PHOTONIC CO., LTD.
    Inventors: I En LIN, Tomoyuki MAMIYA, Jeffery GNIADEK
  • Patent number: 8408814
    Abstract: An optical connector of the present invention includes a ferrule to which an internal optical fiber is embedded and an end face grinding is performed; and a connection mechanism which extends to an opposite side of a connection end face of the ferrule, wherein the optical connector butt connects the internal optical fiber and an insert optical fiber which is inserted from outside within a positioning groove provided at the connection mechanism; and a back end side of an end face of the internal optical fiber which butts to the insert optical fiber is made a beveled end face by cutting process.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: April 2, 2013
    Assignee: Fujikura Ltd.
    Inventors: Koji Sumida, Kazuhiro Takizawa, Daigo Saito
  • Patent number: 8388237
    Abstract: An optical connector that is assembled at the terminal of an optical fiber cable that integrates an optical fiber and a tension-resisting member extending in the longitudinal direction of the optical fiber, the optical connector including: a connector body having a stationary portion at the rear end thereof, the stationary portion having a threaded portion formed on the outer periphery surface, and a fixing cap that is screwed onto the threaded portion of the stationary portion, wherein the fixing cap fixes the tension-resisting member that has been drawn out from the optical fiber cable terminal by sandwiching the tension-resisting member between the fixing cap and the connector body when the fixing cap is screwed onto the stationary portion.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: March 5, 2013
    Assignee: Fujikura Ltd.
    Inventors: Daigo Saito, Kazuhiro Takizawa, Serin Khee Yen Tan
  • Patent number: 8382383
    Abstract: A ferrule structure for an optical connector includes a central member disposed in the ferrule. The central member is configured so that an exterior dimension of the central member can change between a smaller size and a larger size. A plurality of optical fibers are disposed in the ferrule externally to the central member. A method for assembling an optical connector ferrule includes providing a central member, wherein the central member is configured so that an exterior dimension of the central member can change between a smaller size and a larger size. The method further includes placing an axial load on the central member to cause the exterior dimension to assume the smaller size. The central member is disposed in the ferrule. A plurality of optical fibers are disposed in the ferrule, external to the central member. The axial load is removed from the central member.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: February 26, 2013
    Assignee: PGS Geophysical AS
    Inventors: Nicholas Claude George, Greyson Orval Knapp
  • Patent number: 8376632
    Abstract: A strain-relief member having a body formed from a block copolymer and designed for use in a fiber optic drop cable assembly. The body has a central channel and a cylindrical connector-end portion sized to surround an end-portion of a connector. The body also has a tapered cable-end portion sized to surround an end portion of a fiber optic cable that connects to the connector and that has a preferential bend axis. The strain-relief member is configured to limit an amount of strain in the strength components to less than 0.041 when subjected to flex and proof testing. A fiber optic drop cable assembly that has a fiber optic cable with a preferential bend axis and that employs the strain-relief member is also disclosed.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: February 19, 2013
    Assignee: Corning Cable Systems LLC
    Inventors: James D. Blackburn, Mary C. Corpening, Gregory A. Lochkovic, Allen M. Miller, Thomas Theuerkorn
  • Patent number: 8313250
    Abstract: An inlet device is described herein for inserting a telecommunication cable into a telecommunications enclosure. An exemplary inlet device comprises a housing, and a compression member. The housing can include a compressible portion at the second end of the housing and a securing zone adjacent to the first end of the housing. The securing zone can include a plurality of deformable locking elements which protrude from opposite sides of the housing to lock the inlet device in a close fitting port of a telecommunication enclosure.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: November 20, 2012
    Assignee: 3M Innovative Properties Company
    Inventor: Patrick Drouard
  • Patent number: 8292518
    Abstract: One embodiment includes communications module having a release slide and a boot. The release slide includes a main body, a plurality of arms, and a plurality of coupling structures. The arms extend from a first end of the main body. The coupling structures extend from a second end of the main body opposite the first end. The boot is disposed over the coupling structures of the release slide and defines a cavity configured to slidably receive a communications cable.
    Type: Grant
    Filed: February 13, 2012
    Date of Patent: October 23, 2012
    Assignee: Finisar Corporation
    Inventors: Chris K. Togami, Tat Ming Teo, Frank J. Flens
  • Patent number: 8267596
    Abstract: A fiber optic connector assembly includes a fiber optic cable with one or more optical fiber ribbons attached to a fiber optic connector. The connector includes a ferrule assembly and a crimp body with a fiber access aperture. The aperture has at least two walls defining a first width and a second width defining a predetermined delta and a predetermined aspect ratio. The delta and aspect ratio provide optical fiber access for alignment of the optical fiber ribbon to the optical fiber ferrule assembly. A method of making the fiber optic connector assembly is also disclosed.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: September 18, 2012
    Assignee: Corning Cable Systems LLC
    Inventor: Thomas Theuerkorn
  • Patent number: 8256970
    Abstract: An improved, reversibly terminable fiber stub connector assembly is provided that can be readily and positively terminated in the field using simple termination tools. This allows repositioning or replacement of fiber optic cable field fibers if termination is not acceptable in performance. The tool may be a hand-held tool, or used in conjunction with a connector support structure to provide simplified and expeditious field termination of fiber optic cables. The cam tool can include a throughbore that enables connection of a patchcord to the stub fiber of the connector during or shortly after termination without removal of the termination tool. Accordingly, field testing of the connection can be made at the site of termination.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: September 4, 2012
    Assignee: Panduit Corp.
    Inventors: Samuel M. Marrs, Jerry A. Wiltjer, Shaun P. Brouwer
  • Patent number: 8256969
    Abstract: To provide an optical fiber cord with an optical connector of higher flexibility resistance, and the method for manufacturing the same are disclosed. An optical fiber cord with an optical connector, wherein said fiber cord, wherein said the optical connector comprising a stop ring having a through hole formed therein, though which said optical fiber is disposed; a crimping ring being disposed around said optical fiber to crimp said stop ring and said optical fiber cord; a ferrule being disposed at the tip end part of said optical fiber in said optical fiber cord; a spring being disposed around said optical fiber and between said ferrule and said stop ring; a plug frame being engaged with said stop ring; a grip being engaged with said plug frame; wherein said through hole of said stop ring having a stepwisely narrowing part in which a hole diameter is gradually reduced from said crimping part side to said ferrule side.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: September 4, 2012
    Assignee: Seikoh Giken Co., Ltd.
    Inventors: Norimasa Arai, Junji Taira, Yasunari Kawasaki
  • Patent number: 8240927
    Abstract: A cable attachment system is disclosed for attaching a fiber optic connector to a fiber optic cable. In particular, strength members of the fiber optic cable are crimped between a crimp sleeve and a cable anchor, and the cable anchor is anchored to the fiber optic connector. An end of the crimp sleeve is adapted to receive an end of a jacket of the fiber optic cable. An end of the cable anchor includes a nipple adapted for insertion into the end of the jacket. An end portion of the jacket is crimped between an intermediate portion of the crimp sleeve and the nipple of the cable anchor. A support portion of the crimp sleeve, positioned between the end and the intermediate portion of crimp sleeve, supports a transitioning portion of the jacket beyond the end of the cable anchor.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: August 14, 2012
    Assignee: ADC Telecommunications, Inc.
    Inventors: Yu Lu, Craig M. Standish
  • Patent number: 8221006
    Abstract: A fiber optic cable assembly includes a fiber optic cable with one or more optical fibers attached to a housing. The housing includes a connector housing for a connector, a furcation housing for a furcation, and a splice housing for a mid-span cable splice. The furcation housing and the splice housing include a crimp body. The crimp body has a compression area and at least one hoop about the compression area defining a crimp zone. A crimp band is arranged for engaging the crimp zone and including an indentation defining a compression surface and a rib defining a rib interior. The crimp band and the crimp body cooperate to grip the strength element and resist cable pull off forces. A method of making the fiber optic cable assembly is also disclosed.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: July 17, 2012
    Assignee: Corning Cable Systems LLC
    Inventor: Thomas Theuerkorn
  • Patent number: 8172465
    Abstract: A fiber optic cable assembly is provided. The cable assembly includes a housing, a plurality of furcation tubes, and a bundled cable. The housing has an opening at a first end and a plurality of channels at a second end. The furcation tubes are aligned with corresponding channels. One end of the bundled cable extends into an interior space of the housing through the opening. The bundled cable has a cable jacket and cable filaments. A first portion of the cable filaments extends beyond the end of the cable jacket into the interior space. A plurality of optic fibers is disposed in the bundled cable and the housing, and a molding compound is disposed around the furcation unit. Individual optic fibers are located in individual furcation tubes and capable of sliding longitudinally relative to the housing.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: May 8, 2012
    Assignee: NetIG LLC
    Inventor: Terry M. Kleeberger
  • Patent number: 8170391
    Abstract: A fiber optic strain relief assembly includes a housing having a first end and an oppositely disposed second end. The housing defines a bore that extends between the first end and the second end. The fiber optic strain relief assembly further includes a strain relief plate disposed in the bore of the housing. The strain relief plate includes a retention portion that is adapted to receive a strength member of a fiber optic cable. The retention portion includes a plurality of gripping tabs adapted to engage an outer surface of the strength member.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: May 1, 2012
    Assignee: ADC Telecommunications, Inc.
    Inventor: Ronald A. Beck
  • Patent number: 8137003
    Abstract: A device to serve as a fiber optic cable dummy connector is provided. The device may be have connection ports to accept the connectors terminating a fiber optic cable, such as LC-type connectors. Other configurations may be possible. The device may be used in place of an actual SFP module for connection of the fiber optic cable to a port on a piece of equipment. The device may be made opaque so that no transmission or receipt of data or light (laser) from the fiber optic cable may pass through the device. The device may be manufactured to be one-half the length of an actual SFP module. The device may be manufactured from any suitable material. The device may be used to plug fiber optic cables, inactive or active, into ports on a piece of equipment, in place of using an actual SFP module. The dummy connector may be used in place of coiling fiber optic cables and leaving them unconnected until they may be needed.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: March 20, 2012
    Assignee: Verizon Patent and Licensing Inc.
    Inventors: Frank M. Shannon, Charles A. Rexrode, II, Sean P. Andrews
  • Patent number: 8118495
    Abstract: An optical connector comprises a connector housing having splice means configured to abut a stripped and cleaved end surface of a plain fiber of an optical fiber cable onto an end of a fiber stub predisposed in the splice means to form an optical connection. A cable fixing assembly includes a cable fixing member and a cable holder for fixing an outer covering of the optical fiber cable introduced into said connector housing. The cable fixing member includes an opposing piece for slidably engaging with a guide section formed on the wall of an end cap of the connector housing. A step section is formed on the sliding surface of the opposing piece for sliding contact with the sliding surface of the guide section. The cable fixing member moves together with the optical fiber cable so as to reduce a distance between the splice means and the cable holder.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: February 21, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Akihiko Yazaki, Tomoyasu Oike, Takaya Yamauchi
  • Patent number: 8113723
    Abstract: One embodiment includes an integrated boot and release slide having a release slide and a boot. The release slide includes a main body, a plurality of arms, and a plurality of coupling structures. The arms extend from a first end of the main body. The coupling structures extend from a second end of the main body opposite the first end. The boot is overmolded over the coupling structures of the release slide and defines a cavity configured to slidably receive a communications cable.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: February 14, 2012
    Assignee: Finisar Corporation
    Inventors: Chris K. Togami, Tat Ming Teo, Frank J. Flens
  • Patent number: 8100588
    Abstract: A small form factor pluggable (SFP) optical transceiver module and method for performing optical communications are provided. The SFP optical transceiver module has a housing to which a duplex receptacle is secured. The duplex receptacle has a C-shaped opening, the upper and lower portions of which are defined by upper and lower flexible retaining elements for receiving and retaining a duplex optical connector therein. An electrical assembly of the module is secured within the transceiver module housing. The electrical assembly comprises a PCB, the back end of which is configured as a plug end for removably plugging the PCB into a receptacle of an external communications management system.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: January 24, 2012
    Assignee: Avago Technologies Fiber IP (Singapore) Pte. Ltd.
    Inventors: Tom Sheau Tung Wong, Adrianus Van Haasteren, Tze Wei Lim
  • Patent number: 8079763
    Abstract: An optical assembly includes a gas cell and an optical fiber portion in which the gas cell is contiguously attached to the optical fiber portion. The gas cell can be made, for example from hollow-core photonic crystal fiber (HC-PCF).
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: December 20, 2011
    Assignee: University of Bath
    Inventor: Abdel Fetah Benabid
  • Patent number: 8038356
    Abstract: A hardened fiber optic connector includes a unitary housing that mounts a connector body. The hardened fiber optic connector terminates a fiber optic cable including a strength layer and can be connected to a hardened fiber optic adapter. The unitary housing can transfer loads between the fiber optic cable and the hardened fiber optic adapter.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: October 18, 2011
    Assignee: ADC Telecommunications, Inc.
    Inventors: Thomas Marcouiller, Ponharith Nhep, Steven C. Zimmel
  • Publication number: 20110200286
    Abstract: A fiber optic and electrical connection system includes a fiber optic cable, a ruggedized fiber optic connector, a ruggedized fiber optic adapter, and a fiber optic enclosure. The cable includes one or more electrically conducting strength members. The connector, the adapter, and the enclosure each have one or more electrical conductors. The cable is terminated by the connector with the conductors of the connector in electrical communication with the strength members. The conductors of the connector electrically contact the conductors of the adapter when the connector and the adapter are mechanically connected. And, the conductors of the adapter electrically contact the conductors of the enclosure when the adapter is mounted on the enclosure.
    Type: Application
    Filed: February 4, 2011
    Publication date: August 18, 2011
    Applicant: ADC TELECOMMUNICATIONS, INC.
    Inventors: Trevor D. Smith, Yu Lu
  • Patent number: 7983965
    Abstract: An optical fiber inventory selection system selects optical fibers from inventory for use in a communication network. In one embodiment, the system generates an internal specification of requirements to select optical fiber reels from an inventory to be used as components in spans, such as dispersion managed spans, wherein at least one of the selected optical fiber reels is identified to have an amount of optical fiber on the reel cut back to a reduced length. The spans can then be selected to satisfy customer requirements or standardized requirements for a communication network that may include a plurality of cables and paths.
    Type: Grant
    Filed: February 22, 2008
    Date of Patent: July 19, 2011
    Assignee: Corning Incorporated
    Inventor: Igor Rafaelyevich Mejouev
  • Patent number: 7942591
    Abstract: A connector having a front and back orientation and comprising: (a) a cable having at least a jacket and an optical fiber; (b) a ferrule assembly comprising a rear portion for attachment to said jacket, and a ferrule defining a bore hole for containing said optical fiber; (c) a housing having a front portion configured for mating with a mating structure and a back portion configured for attachment to a boot; (d) a spring biasing said ferrule assembly forward in said housing; and (e) a boot secured to said back portion of said housing and extending rearward around said tight-jacketed cable, said boot having an internal channel large enough to allow axial movement of said ferrule assembly relative to said boot.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: May 17, 2011
    Assignee: Tyco Electronics Corporation
    Inventors: Eric James Hopkins, Robert Carl Briggs, Stephen James Miller
  • Patent number: 7942587
    Abstract: A strain-relief assembly for a field-installable fiber optic connector is disclosed, wherein the assembly includes a ferrule holder, an intermediate sleeve, and a crimp sleeve. The ferrule holder back section holds a buffered section of a fiber optic cable, while the ferrule holder front end holds a ferrule and a splice assembly. A stub fiber is held within the ferrule and the splice assembly so as to interface with a section of field optical fiber protruding from the buffered section. The intermediate sleeve engages and generally surrounds a portion of the ferrule holder back section and thus surrounds a portion of the buffered layer. An intermediate sleeve handler may be used to handle the intermediate sleeve and attached the intermediate sleeve to the ferrule holder back section. Stress-relief strands from the fiber optic cable are flared around the outer surface of the intermediate sleeve. A crimp sleeve is placed over the intermediate sleeve to hold the ends of the stress-relief strands in place.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: May 17, 2011
    Assignee: Corning Cable Systems LLC
    Inventors: Ray S. Barnes, Kristine A. McEvoy, David W. Meek, Scott E. Semmler
  • Patent number: 7922398
    Abstract: A cartridge loading/unloading device includes a cartridge holding mechanism 154 which holds a liquid cartridge 80 when a liquid cartridge 80 is inserted by a first predetermined stroke, and a power transmission converting mechanism 153 which ensures a push-in force required for loading of the ink cartridge 80 using the principle of the lever by the rotational motion of a lever arm 160, and which converts the rotational motion of the lever arm 160 into a second predetermined stroke S of movement required for loading of the ink cartridge 80 in a state in which it is held by the cartridge holding mechanism 154. The cartridge holding mechanism 154 includes an integral engaging member 155 which is engaged with the front side of one surface of the ink cartridge 80 in its loading direction across the center of the one surface.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: April 12, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Izumi Nozawa, Satoshi Kobayashi
  • Patent number: 7824113
    Abstract: A small form factor pluggable (SFP) optical transceiver module and method for performing optical communications are provided. The SFP optical transceiver module has a housing to which a duplex receptacle is secured. The duplex receptacle has a C-shaped opening, the upper and lower portions of which are defined by upper and lower flexible retaining elements for receiving and retaining a duplex optical connector therein. An electrical assembly of the module is secured within the transceiver module housing. The electrical assembly comprises a PCB, the back end of which is configured as a plug end for removably plugging the PCB into a receptacle of an external communications management system.
    Type: Grant
    Filed: February 9, 2009
    Date of Patent: November 2, 2010
    Assignee: Avago Technologies Fiber IP (Singapore) Pte. Ltd.
    Inventors: Tom Sheau Tung Wong, Adrianus Van Haasteren, Tze Wei Lim
  • Patent number: 7824110
    Abstract: The invention relates to a data transmission cable (10; 20), in particular for motor vehicles, at at least one of whose ends a plastics housing (14; 24) is arranged, said housing having mechanical dimensions in its interface region (30; 32) which conform to the FAKRA standardisation scheme. The data transmission cable (10; 20) has an optical waveguide, wherein a holding member (40) is provided in the plastics housing (14; 24), said holding member being configured for holding an optical imaging element (42) and for connecting the optical imaging element (42) to the optical waveguide.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: November 2, 2010
    Assignee: Rosenberger Hochfrequenztechnik GmbH & Co. KG
    Inventors: Bernd Rosenberger, Clemens Wurster
  • Patent number: 7806600
    Abstract: An improved, reversibly terminable fiber stub connector assembly is provided that can be readily and positively terminated in the field using simple termination tools. This allows repositioning or replacement of fiber optic cable field fibers if termination is not acceptable in performance. The tool may be a hand-held tool, or used in conjunction with a connector support structure to provide simplified and expeditious field termination of fiber optic cables. The cam tool can include a throughbore that enables connection of a patchcord to the stub fiber of the connector during or shortly after termination without removal of the termination tool. Accordingly, field testing of the connection can be made at the site of termination.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: October 5, 2010
    Assignee: Panduit Corp.
    Inventors: Samuel M. Marrs, Jerry A. Wiltjer, Shaun P. Brouwer
  • Publication number: 20100247041
    Abstract: A bend limiting system (strain relief (200)) that may be retrofit onto a cable connector (142). The bend limiting system includes a latching ring (102) configured to fit over the cable connector's mating face so that the bend limiting system may be placed into position after the connector is connected to another device. The bend limiter (200) includes three sections. These sections include a latching ring (202) in the front, an elongated cable guide (204) in the middle and a cable retainer (206) at the end. The latching ring portion (202) is of a generally circular shape to engage the mating face of a round complementary connector.
    Type: Application
    Filed: January 15, 2007
    Publication date: September 30, 2010
    Inventor: B. Daniel Szilagyi
  • Patent number: 7802926
    Abstract: The present invention provides an optical fiber connection device comprising a part (103) of a screw-threadless multi-part (101, 103) optical fiber cable connector (100), the multi-parts (101, 103) of the connector (100) being inter-connectable, the part (103) comprising a body (102), the body (102) comprising: an optical fiber cable connection end (105) for connection with an optical fiber cable (106); a part connection end (104) for connection with another part (101) of the multi-part optical fiber cable connector (100); and one or more formations (113) adapted to co-operate with a retainer (213, 313) in a mounting (200, 300) for the connector (100), the mounting (200, 300) used to retain the optical fiber cable (106) and the connector (100) when the optical fiber cable (106) is connected to the optical fiber cable connection end (105) of the body (102), the formations (113) adapted to co-operate with the mounting retainer (213, 313) to resist rotational and/or axial movement of the connector (100) when the
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: September 28, 2010
    Assignee: Tyco Electronics Raychem NV
    Inventors: Sam Leeman, Erik Peeters, Erwin Junius, Sandra Goossens
  • Patent number: 7758254
    Abstract: A fiber connector using a hooking structure includes a fiber connector having a socket and a fastening block disposed inside an upper end of the socket; a fiber positioning piece for inserting in the socket of the fiber connector, the fiber positioning piece having a spring plate extending forwardly from an upper end thereof, and a buckling slot disposed on the spring plate, the buckling slot being provided for the fastening block of the fiber connector to be fastened therein; therefore the hooking structure of the fiber connector is implemented by using these components.
    Type: Grant
    Filed: September 6, 2008
    Date of Patent: July 20, 2010
    Assignee: Comoss Electronic Co., Ltd.
    Inventor: Eden Tsai
  • Patent number: 7758257
    Abstract: A connectorized fiber optic cabling assembly includes a loose tube fiber optic cable and a connector assembly. The cable has a termination end and includes: an optical fiber bundle including a plurality of optical fibers; at least one strength member; and a jacket surrounding the optical fiber bundle and the at least one strength member. The connector assembly includes a rigid portion and defines a fiber passage. The connector assembly is mounted on the termination end of the cable such that the optical fiber bundle extends through at least a portion of the fiber passage. The plurality of optical fibers of the optical fiber bundle have a ribbonized configuration in the rigid portion of the connector assembly and a loose, non-ribbonized configuration outside the rigid portion. The plurality of optical fibers undergo a transition from the ribbonized configuration to the loose, non-ribbonized configuration in the rigid portion of the connector assembly.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: July 20, 2010
    Assignee: CommScope, Inc. of North Carolina
    Inventors: Timothy W. Anderson, Richard L. Case
  • Patent number: 7756381
    Abstract: A connector holder (22) suitable for use in a communications signal distribution system, comprising first and second parts between which an optical connector element may be secured, and which have means for locating the holder (22) in one of a number of different positions and/or orientations on a base or other support of an optical fiber termination unit, whereby to permit a selected one of a number of different connector elements to be held between the two parts of the connector holder, and means for holding the two parts together with a connector element between them.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: July 13, 2010
    Assignee: Tyco Electronics Raychem NV
    Inventors: Heidi Bleus, Peter Bos, Luc Devooght, Eric Schurmans
  • Patent number: 7734138
    Abstract: There is provided a fiber optic connector holder adapted to selectively retain two or more fiber optic connectors that include a dust cap on the ferrule. The connector holder comprises a boot retainer to selectively retain a portion of the boot of the connector, and the connector holder comprises a dust cap retainer to selectively retain a portion of the dust cap of the connector. The connector holder is provided in a telecommunications enclosure to provide convenient parking for fiber optic connectors that are not optically connected within a distribution field or the like or that are generally not in service at the time. The connector holders may be selectively installed and/or removed from the telecommunications enclosure to assist in the installation of new fiber optic hardware, such as splitter modules.
    Type: Grant
    Filed: July 20, 2007
    Date of Patent: June 8, 2010
    Assignee: Corning Cable Systems LLC
    Inventors: Stephen Guy Bloodworth, Cesar Geronimo Garcia, William Julius McPhil Giraud, Todd Edward Mitchell
  • Patent number: 7712974
    Abstract: An optical connector and a method of assembling an optical connector that is capable of avoiding generation of unnecessary tension in the optical fiber cable in which plain fiber portions are optically connected to each other using a splice assembly. The optical connector comprises a connector housing having splice means configured to abut a stripped and cleaved end surface of a plain fiber of an optical fiber cable (2) onto an end of a fiber stub predisposed in the splice means to form an optical connection; and a cable fixing assembly (26, 40), that includes a cable fixing member (26) and a cable holder (40), for fixing an outer covering (2c) of the optical fiber cable (2) introduced into said connector housing (10).
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: May 11, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Akihiko Yazaki, Tomoyasu Oike, Takaya Yamauchi
  • Patent number: 7695198
    Abstract: A latch protection clip for a connector mounted at an end of a cable and having a latch extending from a connector housing to a distal end includes a clip body having fingers configured to engage the cable directly behind the connector housing to secure the clip body to the cable. The latch protection clip also includes a trigger extending from the clip body. The trigger has a lever arm extending from the clip body and a trigger handle at an end of the lever arm opposite the clip body. The trigger handle has an outer surface and at least one pocket recessed inward from the outer surface. Each pocket is configured to receive the distal end of a corresponding latch. The trigger is configured to actuate the latch in an actuation direction when the trigger handle is deflected toward the connector housing. The pocket restricts lateral movement of the latch in a direction transverse to the actuation direction of the latch.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: April 13, 2010
    Assignee: Tyco Electronics Corporation
    Inventors: David R. Baechtle, Eric Hopkins
  • Patent number: 7695197
    Abstract: A bend limiter for use with electrical and fiber optic cables that can handle a relatively wide range of side loading without excessive bending is disclosed. The bend limiter is configured to bend at radii which are less than the critical curvature of the cable over a range of loads. The bend limiter includes a flexible member having two portions. One portion has a non-linear profile and is designed to absorb high loads to control bending. The other portion has a tapered linear profile and is designed to bend under light loads so that a conductor at the tip of the bend limiter does not kink.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: April 13, 2010
    Assignee: Tyco Electronics Corporation
    Inventor: Michael Lawrence Gurreri
  • Patent number: 7658553
    Abstract: A mechanical splice connector is shown and described for sequentially performing a splice actuation followed by a strain relief actuation by rotating a single, multiple-position cam member or multiple cam members from an unactuated position to a first actuated position and a second actuated position. The mechanical splice connector aligns and retains at least one stub optical fiber and the bare glass portion of at least one adjoining field optical fiber, as well as strain relieving a coated portion of the field optical fiber, or alternatively, a buffered portion of the field optical fiber. A method is also described for sequentially performing a splice actuation followed by a strain relief actuation, wherein the splice actuation is reversible prior to performing the strain relief actuation in the event that the optical continuity of the splice coupling is unacceptable, thereby avoiding potential damage to the field optical fiber or the connector.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: February 9, 2010
    Assignee: Corning Cable Systems LLC
    Inventors: Scott E. Semmler, Brandon A. Barnes, Kevin C. Beach, Bradley S. Billman, Donald G. Doss, David W. Meek
  • Patent number: 7641398
    Abstract: An apparatus for holding a first fiber optic connector and a second fiber optic connector includes a housing configured to secure the first fiber optic connector and the second fiber optic connector at a first end and a strain relief boot connected to a second end of the housing. The housing and the strain relief boot are configured to form a passageway to receive a fiber optic cable that is connected to both the first fiber optic connector and the second fiber optic connector.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: January 5, 2010
    Inventors: Stephen O'Riorden, David Geldart, Kenichiro Nakamura
  • Patent number: 7628549
    Abstract: An optical connector for splicing a rear end of a pre-assembled optical fiber that is mounted within an optical ferrule with a tip of a second optical fiber is provided. The optical connector includes a connector body and an anchor mechanism for anchoring the second optical fiber to the connector body. The anchor mechanism includes a holder for holding the second optical fiber, and connecting portion which anchors the holder to the connector body. The length of the second optical fiber from the holder to the tip is longer than the distance from the holder to the rear end of the pre-assembled optical fiber. The rear end of the pre-assembled optical fiber is a curved convex end surface or an end with a diameter-reducing portion, and is PC-connectable to the tip of the second optical fiber.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: December 8, 2009
    Assignee: Fujikura Ltd.
    Inventors: Shigeo Takahashi, Kazuhiro Takizawa, Khee Yen Serin Tan
  • Patent number: 7628545
    Abstract: A fiber optic plug assembly of a fiber optic connector assembly is provided and generally includes a fiber optic plug mounted upon an end of a fiber optic cable; a pre-molded boot placed over the fiber optic plug and the fiber optic cable; and a crimp band mated over the pre-molded boot to secure the boot to the fiber optic cable; wherein the fiber optic plug assembly is operable to mate to a fiber optic receptacle. The plug assembly eliminates the need for an overmolded boot. Further, the present invention eliminates the need to perform a heat shrink between the buffer tube and crimp body through the internal O-ring. The plug assembly meets the standards of GR-3120-CORE while at the same time providing a simpler hardware package that can be assembled with ordinary connectorization tools.
    Type: Grant
    Filed: June 18, 2007
    Date of Patent: December 8, 2009
    Assignee: Corning Cable Systems LLC
    Inventors: Joseph Todd Cody, James Phillip Luther, Christopher Paul Lewallen, Thomas Theuerkorn
  • Publication number: 20090297102
    Abstract: A fiber optic cable assembly includes a fiber optic cable and a connector assembly. The fiber optic cable includes an optical fiber, having a core surrounded by a cladding, and a jacket, which surrounds the optical fiber. The jacket includes a plurality of reinforcement members integrated into a matrix material of the jacket. The connector assembly includes a rear housing having a connector end that is directly engaged with an end portion of the jacket. A fiber optic cable includes an optical fiber with a core surrounded by a cladding. The fiber optic cable also includes a jacket that surrounds the optical fiber. The jacket includes about 40% to about 70% by weight of a plurality of reinforcement members integrated into a matrix material of the jacket.
    Type: Application
    Filed: May 27, 2009
    Publication date: December 3, 2009
    Applicant: ADC Telecommunications, Inc.
    Inventor: Wayne M. Kachmar
  • Patent number: 7625130
    Abstract: An optical component is improved in workability during assembly operation thereof and makes it possible to easily position an optical fiber. A first ferrule is press-fitted into one end of a central hole of a connecting member, and a second ferrule is press-fitted into the other end of the central hole of the connecting member. An optical fiber is inserted through the first and second ferrules. A coating which coats an intermediate portion of the optical fiber of an optical fiber cord is accommodated in a communicating portion of the central hole of the connecting member in a manner such that the coating is brought into abutment with the first and second ferrules.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: December 1, 2009
    Assignee: Japan Aviation Electronics Industry Limited
    Inventors: Yasutaka Hiroki, Yuichi Koreeda, Naoki Katagiyama
  • Patent number: 7621675
    Abstract: According to an example embodiment of the invention a one-piece retention housing is utilized for terminating an optical fiber cable. The retention housing attaches to strength members within the cable, providing tensile strength and a means for further mating with components of an optical fiber connector assembly. The retention housing is used as part of a kit for terminating and securing the optical fiber cable connector to a complementary receptacle or terminal for drop-cable deployments in optical access networks and outside plant applications.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: November 24, 2009
    Assignee: OFS Fitel, LLC
    Inventor: Kelvin B. Bradley
  • Patent number: 7618201
    Abstract: An optical-waveguide device mounted on a fixing member having a pair of opposing upright walls and a sub-mount unit including a metallic sub-mount of a rectangular solid shape inserted between the opposing upright walls and a nonmetallic sub-mount of a rectangular solid shape mounted on the metallic sub-mount, and fixed onto a base table. The fixing member and the sub-mount unit as well as the fixing member and the base table are spot-welded together using YAG welding.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: November 17, 2009
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Sayoko Ibe, Noriyuki Yokouchi, Kengo Muranushi, Tatsuya Kimoto, Tatsuro Kurobe
  • Patent number: 7606458
    Abstract: An optical fiber bend limiting device may be used in a movable optical connection system to transition optical fibers between at least first and second optical fiber connecting structures that move relative to each other. The optical fiber bend limiting device may be coupled between the optical fiber connecting structures such that the bend limiting device moves with the connecting structures. The optical fiber bend limiting device allows movement of the optical fibers within the movable optical fiber connection system while preventing the optical fibers from bending beyond a bend radius limit.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: October 20, 2009
    Assignee: Tyco Telecommunications (US) Inc.
    Inventor: Eric Hermsen
  • Patent number: 7572065
    Abstract: The present disclosure relates to a fiber optic connector for use with a fiber optic adapter. The fiber optic connector includes a connector housing having an end defining a plug portion. A ferrule assembly is mounted at least partially within the connector housing. The ferrule assembly includes a ferrule located at the plug portion of the connector housing. A sealing member is mounted about an exterior of the connector housing for providing a seal between the connector housing and the adapter. The fiber optic connector further includes first and second separate retaining mechanism for retaining the fiber optic connector within the fiber optic adapter.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: August 11, 2009
    Assignee: ADC Telecommunications, Inc.
    Inventors: Yu Lu, Randy Reagan
  • Patent number: RE43542
    Abstract: An optical fiber terminating assembly has an outer body (10), a first member (11) locatable in the outer body (10) and which carries a protruding length of optical fiber (36) which locates an alignment structure (44, 45) and a housing (12) locatable in alignment with the first member (11). The housing (12) has an access opening for receiving an optical fiber (52, 53) to be terminated so that the fiber can be located in the alignment structure in abutment with the optical fiber length (35). The housing has a compartment (47) which receives a heat responsive adhesive element (57), a saddle (58) and a resistor (59). When a current is passed through the resistor, the heat generated is transmitted by the saddle to the adhesive which melts and flows around the optical fiber (52, 53) to secure it in position in abutment with the optical fiber length (35).
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: July 24, 2012
    Assignee: ADC GmbH
    Inventors: David Patrick Murray, Ian George, Neil David Elliott