Structure Rearward Of Optical Fiber End Face To Secure Additional Fiber Or Cable Layers Patents (Class 385/86)
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Publication number: 20140023327Abstract: 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: ApplicationFiled: July 8, 2013Publication date: January 23, 2014Inventors: Trevor D. Smith, Yu Lu
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Patent number: 8628252Abstract: There is provided a waterproof connector. The waterproof connector comprises a connector member supporting a ferrule to be butted against a target ferrule disposed in a target connector, the connector member being adapted to be locked to an adapter member of the target connector by an action of a lock operation portion provided in the connector member; unlocking means being adapted to operate the lock operation portion to release the locked state; and a housing body allowing the unlocking means to be slidably moved. The waterproof connector is adapted to be released from the connection with the target connector in such a manner that the unlocking means is allowed to be moved away from the connector member, whereby the unlocking means is operable to operate the lock operation portion to release the locked state, and to move the connector member away from the adapter member to release the fitting.Type: GrantFiled: February 19, 2010Date of Patent: January 14, 2014Assignees: Hirose Electric Co., Ltd., Sei Optifrontier Co., Ltd.Inventors: Shinichi Matsumoto, Yasuhiro Masuzaki, Kiyoshi Jokura, Hiroshi Miyabayashi
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Patent number: 8616784Abstract: An optical connector that is assembled onto a terminal of an optical fiber cable including tension bodies. The optical connector includes a housing, a ferrule that is provided in the housing, and a fixing cap that is mounted on the housing. The housing includes a fixing portion of which an outer peripheral surface is provided with a screw portion. While the tension bodies leading from the terminal of the optical fiber cable are interposed between the housing and the fixing cap, the fixing cap is screwed onto and fixed to the fixing portion.Type: GrantFiled: January 6, 2011Date of Patent: December 31, 2013Assignee: Fujikura Ltd.Inventors: Daigo Saito, Kazuhiro Takizawa, Serin Khee Yen Tan
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Patent number: 8591124Abstract: A system for plugging a fibre optic cable into a fibre optic receptacle includes: a base element having at least one base port, and an adapter unit having at least one adapter, the at least one adapter and the at least one base port being spaced of a predetermined length. The system includes a cable adaptor associated with the fibre optic cable, the cable adaptor including a connector for being plugged into the adapter; an anchoring device for anchoring the fibre optic cable to said base port, and a connector retaining element for receiving the connector and a cable end portion, the connector retaining element defining the predetermined length and removably engaging with the anchoring device. A cable adaptor for a fibre optic cable and a method of installing a fibre optic cable into a fibre optic receptacle, especially into a joint closure, are also described.Type: GrantFiled: September 5, 2006Date of Patent: November 26, 2013Assignee: Prysmian Cables & Systems LimitedInventors: Ian Griffiths, Paul Hubbard
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Patent number: 8573858Abstract: An assembly includes a connector and a carrier engaged therewith. Connector has a first mating end and a second end and a first fiber. The fiber defines a first end adjacent the mating end and a second end protruding from the connector second end. Carrier has a connector end and an opposite cable end and includes a heat activated meltable portion adjacent the cable end. An alignment structure is on the carrier and includes first and second ends, and a throughhole. The first end of the alignment structure receives the second end of the first fiber and the second end receives an end of a second fiber entering the carrier. The heat activated portion melts and assumes a flowable condition when exposed to a predetermined amount of heat and resolidifies when heat is removed, bonding the second fiber to the carrier after the first and second fibers are aligned.Type: GrantFiled: May 27, 2010Date of Patent: November 5, 2013Assignee: ADC Telecommunications, Inc.Inventors: Kenneth Allen Skluzacek, Wagner Da Silva Aguiar, Jarrod Scadden, Wayne M. Kachmar
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Patent number: 8573859Abstract: An optical fiber connector includes a housing configured to mate with a receptacle, a collar body that includes a fiber stub and a mechanical splice device, a backbone to retain the collar body within the housing, and a boot. The backbone includes a fiber jacket clamping portion to clamp a jacket portion that surrounds a portion of the terminated optical fiber upon actuation. The boot actuates the fiber jacket clamping portion of the backbone upon attachment to the backbone. The optical fiber connector can be terminated in the field without the need to use a separate termination platform or tool.Type: GrantFiled: May 15, 2009Date of Patent: November 5, 2013Assignee: 3M Innovative Properties CompanyInventors: Donald K. Larson, Chansool Park
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Patent number: 8573855Abstract: A cable fanout defines an entry location for receiving a multi-fiber cable at one end, and an opposite end defining an exit location for individual cables. The cable fanout includes an inner housing having a first end defining a plurality of openings for the individual cables, and first and second side extensions extending in a longitudinal direction. The cable fanout further includes an outer housing including first and second identical halves enclosing the inner housing. One of the halves and the inner housing cooperating to form a pocket for holding epoxy around exposed fibers in the fanout during assembly. In a preferred embodiment, a snap arrangement mounts the first and second outer housing halves together.Type: GrantFiled: October 5, 2009Date of Patent: November 5, 2013Assignee: ADC Telecommunications, Inc.Inventor: Ponharith Nhep
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Patent number: 8568040Abstract: An optical fiber connector includes a shell, a lens and a strengthening unit. The shell includes a blind hole extended along a first direction for receiving a fiber and a through hole communicated with the blind hole and extended along a second direction perpendicular to the first direction. The lens is formed on the shell to align with a bottom of the blind hole. The lens is capable of optically coupling with the fiber in the blind hole. The strengthening unit is formed in the through hole.Type: GrantFiled: March 29, 2010Date of Patent: October 29, 2013Assignee: Hon Hai Precision Industry Co., Ltd.Inventor: Chun-Yu Lin
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Publication number: 20130272661Abstract: 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: ApplicationFiled: March 4, 2013Publication date: October 17, 2013Inventor: ADC TELECOMMUNICATIONS, INC.
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Patent number: 8550728Abstract: A connection method connects an optical connector and an optical transmission element. The optical connector includes a connector housing, a stop-ring structure, and an optical fiber which protrudes from an end part of the stop-ring structure. The optical transmission element includes a tensile-strength fiber body. The connection method includes fuse-connecting a first end of the optical fiber with a second end of an optical fiber protruding from a transmission element terminal part of the optical transmission element; inserting a fuse-connected optical fiber part and the tensile strength fiber body inside a reinforcing sleeve provided with a hot melt body, and covering and bridging the transmission element terminal part and at least the end part of the stop-ring structure; and integrating the fuse-connected optical fiber part, the tensile strength fiber body, the transmission element terminal part, and the stop-ring structure, by a hot melt resin melted from the hot melt body.Type: GrantFiled: February 24, 2010Date of Patent: October 8, 2013Assignee: Fujikura Ltd.Inventors: Shigeo Takahashi, Kazuhiro Takizawa, Masaaki Miyamoto, Yoshinori Iwashita, Noriyuki Kawanishi, Toshiki Kubo, Khee Yen Serin Tan
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Patent number: 8483539Abstract: A device serving as a fiber optic cable dummy connector is provided. The device may have connection ports to accept the connectors terminating a fiber optic cable, such as LC-type connectors, or other configurations. The device may be used instead 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 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 are needed.Type: GrantFiled: February 9, 2012Date of Patent: July 9, 2013Assignee: Verizon Patent and Licensing Inc.Inventors: Frank M. Shannon, Charles A. Rexrode, II, Sean P. Andrews
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Patent number: 8480312Abstract: 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: GrantFiled: February 4, 2011Date of Patent: July 9, 2013Assignee: ADC Telecommunications, Inc.Inventors: Trevor D. Smith, Yu Lu
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Patent number: 8452151Abstract: 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: GrantFiled: January 14, 2010Date of Patent: May 28, 2013Assignee: ADC Telecommunications, Inc.Inventors: Michael D. Schroeder, Mark Smrha
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Patent number: 8452150Abstract: An optical fiber holder assembly for holding an optical fiber having any one of several different fiber constructions comprises a base and a fiber clamping mechanism. The clamping mechanism includes a clamping portion configured to clamp the optical fiber, the clamping portion including a first clamping plate hingedly coupled to a portion of the base. A first fiber entrance guide is formed in an entrance end of the fiber clamping mechanism to receive and guide the optical fiber to a first fiber channel formed in the base. A second fiber entrance guide is formed in the entrance end of the fiber clamping mechanism to receive and guide the optical fiber to a second fiber channel formed in the base. The first clamping portion includes first and second compliant gripping pads, the first gripping pad disposed on the base and the second gripping pad disposed in the first clamping plate such that the gripping pads overlap each other when the first clamping plate is placed in a closed position.Type: GrantFiled: July 29, 2008Date of Patent: May 28, 2013Assignee: 3M Innovative Properties CompanyInventors: Paul N. Winberg, Donald K. Larson
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Patent number: 8430573Abstract: 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: GrantFiled: March 12, 2010Date of Patent: April 30, 2013Assignee: Fujitsu LimitedInventor: Takayuki Watanabe
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Publication number: 20130094816Abstract: 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: ApplicationFiled: October 18, 2011Publication date: April 18, 2013Applicants: SENKO ADVANCED COMPONENTS, INC., PROTAI PHOTONIC CO., LTD.Inventors: I En LIN, Tomoyuki MAMIYA, Jeffery GNIADEK
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Patent number: 8408814Abstract: 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: GrantFiled: August 10, 2011Date of Patent: April 2, 2013Assignee: Fujikura Ltd.Inventors: Koji Sumida, Kazuhiro Takizawa, Daigo Saito
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Patent number: 8388237Abstract: 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: GrantFiled: August 11, 2011Date of Patent: March 5, 2013Assignee: Fujikura Ltd.Inventors: Daigo Saito, Kazuhiro Takizawa, Serin Khee Yen Tan
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Patent number: 8382383Abstract: 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: GrantFiled: June 8, 2010Date of Patent: February 26, 2013Assignee: PGS Geophysical ASInventors: Nicholas Claude George, Greyson Orval Knapp
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Patent number: 8376632Abstract: 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: GrantFiled: March 11, 2010Date of Patent: February 19, 2013Assignee: Corning Cable Systems LLCInventors: James D. Blackburn, Mary C. Corpening, Gregory A. Lochkovic, Allen M. Miller, Thomas Theuerkorn
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Patent number: 8313250Abstract: 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: GrantFiled: March 17, 2009Date of Patent: November 20, 2012Assignee: 3M Innovative Properties CompanyInventor: Patrick Drouard
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Patent number: 8292518Abstract: 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: GrantFiled: February 13, 2012Date of Patent: October 23, 2012Assignee: Finisar CorporationInventors: Chris K. Togami, Tat Ming Teo, Frank J. Flens
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Patent number: 8267596Abstract: 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: GrantFiled: August 23, 2010Date of Patent: September 18, 2012Assignee: Corning Cable Systems LLCInventor: Thomas Theuerkorn
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Patent number: 8256970Abstract: 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: GrantFiled: September 29, 2010Date of Patent: September 4, 2012Assignee: Panduit Corp.Inventors: Samuel M. Marrs, Jerry A. Wiltjer, Shaun P. Brouwer
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Patent number: 8256969Abstract: 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: GrantFiled: June 10, 2009Date of Patent: September 4, 2012Assignee: Seikoh Giken Co., Ltd.Inventors: Norimasa Arai, Junji Taira, Yasunari Kawasaki
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Patent number: 8240927Abstract: 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: GrantFiled: July 16, 2010Date of Patent: August 14, 2012Assignee: ADC Telecommunications, Inc.Inventors: Yu Lu, Craig M. Standish
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Patent number: 8221006Abstract: 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: GrantFiled: August 23, 2010Date of Patent: July 17, 2012Assignee: Corning Cable Systems LLCInventor: Thomas Theuerkorn
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Patent number: 8172465Abstract: 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: GrantFiled: October 14, 2009Date of Patent: May 8, 2012Assignee: NetIG LLCInventor: Terry M. Kleeberger
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Patent number: 8170391Abstract: 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: GrantFiled: February 11, 2010Date of Patent: May 1, 2012Assignee: ADC Telecommunications, Inc.Inventor: Ronald A. Beck
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Patent number: 8137003Abstract: 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: GrantFiled: August 12, 2008Date of Patent: March 20, 2012Assignee: Verizon Patent and Licensing Inc.Inventors: Frank M. Shannon, Charles A. Rexrode, II, Sean P. Andrews
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Patent number: 8118495Abstract: 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: GrantFiled: April 29, 2010Date of Patent: February 21, 2012Assignee: 3M Innovative Properties CompanyInventors: Akihiko Yazaki, Tomoyasu Oike, Takaya Yamauchi
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Patent number: 8113723Abstract: 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: GrantFiled: January 12, 2010Date of Patent: February 14, 2012Assignee: Finisar CorporationInventors: Chris K. Togami, Tat Ming Teo, Frank J. Flens
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Patent number: 8100588Abstract: 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: GrantFiled: October 8, 2010Date of Patent: January 24, 2012Assignee: Avago Technologies Fiber IP (Singapore) Pte. Ltd.Inventors: Tom Sheau Tung Wong, Adrianus Van Haasteren, Tze Wei Lim
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Optical assembly of a hollow core fibre gas cell spliced to fibre ends and methods of its production
Patent number: 8079763Abstract: 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: GrantFiled: January 24, 2006Date of Patent: December 20, 2011Assignee: University of BathInventor: Abdel Fetah Benabid -
Patent number: 8038356Abstract: 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: GrantFiled: April 21, 2009Date of Patent: October 18, 2011Assignee: ADC Telecommunications, Inc.Inventors: Thomas Marcouiller, Ponharith Nhep, Steven C. Zimmel
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Publication number: 20110200286Abstract: 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: ApplicationFiled: February 4, 2011Publication date: August 18, 2011Applicant: ADC TELECOMMUNICATIONS, INC.Inventors: Trevor D. Smith, Yu Lu
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Patent number: 7983965Abstract: 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: GrantFiled: February 22, 2008Date of Patent: July 19, 2011Assignee: Corning IncorporatedInventor: Igor Rafaelyevich Mejouev
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Patent number: 7942587Abstract: 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: GrantFiled: August 5, 2010Date of Patent: May 17, 2011Assignee: Corning Cable Systems LLCInventors: Ray S. Barnes, Kristine A. McEvoy, David W. Meek, Scott E. Semmler
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Patent number: 7942591Abstract: 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: GrantFiled: April 7, 2009Date of Patent: May 17, 2011Assignee: Tyco Electronics CorporationInventors: Eric James Hopkins, Robert Carl Briggs, Stephen James Miller
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Patent number: 7922398Abstract: 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: GrantFiled: March 28, 2006Date of Patent: April 12, 2011Assignee: Seiko Epson CorporationInventors: Izumi Nozawa, Satoshi Kobayashi
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Patent number: 7824110Abstract: 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: GrantFiled: March 28, 2006Date of Patent: November 2, 2010Assignee: Rosenberger Hochfrequenztechnik GmbH & Co. KGInventors: Bernd Rosenberger, Clemens Wurster
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Patent number: 7824113Abstract: 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: GrantFiled: February 9, 2009Date of Patent: November 2, 2010Assignee: Avago Technologies Fiber IP (Singapore) Pte. Ltd.Inventors: Tom Sheau Tung Wong, Adrianus Van Haasteren, Tze Wei Lim
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Patent number: 7806600Abstract: 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: GrantFiled: February 28, 2008Date of Patent: October 5, 2010Assignee: Panduit Corp.Inventors: Samuel M. Marrs, Jerry A. Wiltjer, Shaun P. Brouwer
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Publication number: 20100247041Abstract: 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: ApplicationFiled: January 15, 2007Publication date: September 30, 2010Inventor: B. Daniel Szilagyi
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Patent number: 7802926Abstract: 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 theType: GrantFiled: October 2, 2006Date of Patent: September 28, 2010Assignee: Tyco Electronics Raychem NVInventors: Sam Leeman, Erik Peeters, Erwin Junius, Sandra Goossens
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Patent number: 7758257Abstract: 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: GrantFiled: April 14, 2009Date of Patent: July 20, 2010Assignee: CommScope, Inc. of North CarolinaInventors: Timothy W. Anderson, Richard L. Case
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Patent number: 7758254Abstract: 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: GrantFiled: September 6, 2008Date of Patent: July 20, 2010Assignee: Comoss Electronic Co., Ltd.Inventor: Eden Tsai
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Patent number: 7756381Abstract: 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: GrantFiled: October 14, 2005Date of Patent: July 13, 2010Assignee: Tyco Electronics Raychem NVInventors: Heidi Bleus, Peter Bos, Luc Devooght, Eric Schurmans
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Patent number: 7734138Abstract: 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: GrantFiled: July 20, 2007Date of Patent: June 8, 2010Assignee: Corning Cable Systems LLCInventors: Stephen Guy Bloodworth, Cesar Geronimo Garcia, William Julius McPhil Giraud, Todd Edward Mitchell
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Patent number: RE43542Abstract: 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: GrantFiled: June 11, 2001Date of Patent: July 24, 2012Assignee: ADC GmbHInventors: David Patrick Murray, Ian George, Neil David Elliott