Optical Fiber/optical Fiber Cable Termination Structure Patents (Class 385/76)
  • 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
  • Publication number: 20110110630
    Abstract: An optical transmission medium, a ferrule, an optical terminal connector, an optical structure, and an optical equipment have both optical terminal functions and the optical connector functions without the need to change component depending on application. The optical transmission medium has at least one end thereof that is an APC cut surface and a refractive index matching member is provided on the APC cut surface. The ferrule is characterized in that at least one end thereof is an APC polished surface and a refractive index matching member is provided on the APC polished surface. The optical terminal connector includes a ferrule which holds an optical transmission medium and an adapter into which the ferrule is inserted from one end thereof, at least one end of the optical transmission medium is an APC cut surface and a refractive index matching member is provided on the APC cut surface.
    Type: Application
    Filed: June 8, 2009
    Publication date: May 12, 2011
    Applicant: Tomoegawa Co., Ltd.
    Inventor: Nobuhiro Hashimoto
  • Publication number: 20110103747
    Abstract: An optical fiber connector includes a lens member integrally forming pairs of lens at a front face thereof, a seat member assembly retained on a rear face of the lens member and fiber cables. The seat member defines slim grooves aligned with the lens and the fiber cables are received and retained in the slim grooves.
    Type: Application
    Filed: October 31, 2010
    Publication date: May 5, 2011
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: YEN-CHIH CHANG, WEN-YI HSIEH, CHIEN-HUNG LEE, CHUN-FU LIN, CHI-NAN LIAO
  • Publication number: 20110096563
    Abstract: A light module, a fiber optic connector, and a system that each include a screw in communication with an optical fiber that is movable such that the optical fiber may be deformed to a desired level in order to control encircled flux by extinguishing undesired modes of light launched through the optical fiber.
    Type: Application
    Filed: October 22, 2010
    Publication date: April 28, 2011
    Inventors: Piotr Anatolij Levin, Nikolajus Gavrilinas
  • Publication number: 20110091163
    Abstract: A connector comprises a housing, a lever and a lock portion. The housing receives terminals. The lever, rotatably attached to the housing, is configured to be rotatable between a first position, where an initial stage of fitting to a counterpart connector is established, and a second position, where the fitting thereof is completed. The lock portion, capable of locking the lever at the second position, is slidably attached to a body portion of the lever, and configured to be slid between a lock position and a lock release position. The lever is provided with a positioning latch-portion configured to latch the lock portion. The positioning latch-portion is provided with a concave latch-portion and a convex latch-portion configured to be elastically displaced to be engaged in or disengaged from the concave latch-portion.
    Type: Application
    Filed: June 11, 2009
    Publication date: April 21, 2011
    Applicant: MOLEX INCORPORATED
    Inventors: Akihiro Shimotsu, Masayuki Arai
  • Patent number: 7929819
    Abstract: A field termination kit includes an optical fiber preparation device for preparing an end of an optical fiber, an optical inspection device for inspecting the end of the optical fiber, and a termination assembly for terminating the end of the optical fiber. A method of using a field termination kit includes rotating an end of a first optical fiber about a center of an abrasive portion of an optical fiber preparation tool. The end is pressed against an adhesive portion of the optical fiber preparation tool to clean contaminants from the end. The end is inserted into an inner passage of an optical fiber inspection device for viewing. The end is inserted into a termination assembly. The end is terminated to an end of a second optical fiber in a termination region of the termination assembly.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: April 19, 2011
    Assignee: ADC Telecommunications, Inc.
    Inventor: Wayne M. Kachmar
  • Publication number: 20110081114
    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: Application
    Filed: January 12, 2010
    Publication date: April 7, 2011
    Applicant: FINISAR CORPORATION
    Inventors: Chris K. Togami, Tat Ming Teo, Frank J. Flens
  • Publication number: 20110058773
    Abstract: The present disclosure relates to an optical plug connector (1) having an improved unlocking mechanism. A locking arm (4), which protrudes toward the back in a slanted manner, is operatively connected to a collar (7) by way of a bracket (9). By displacing the collar (7) in an unlocking direction (?x), the connector (1) can be unlocked and removed from a sleeve.
    Type: Application
    Filed: April 28, 2009
    Publication date: March 10, 2011
    Inventors: Adrian Peterhans, Patrick Zaina, Nesa Scopic
  • Patent number: 7903923
    Abstract: A terminal for mounting to a fiber distribution cable includes a base and a cover releasably engaged to the base by a releasable engagement mechanism. The releasable engagement mechanism includes a resilient latch having a base end and a free end. The free end defines a plurality of openings. The releasable engagement mechanism further includes a plurality of protrusions having a lip and a sloped surface. The plurality of protrusions is adapted for engagement with the plurality of openings of the resilient latch.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: March 8, 2011
    Assignee: ADC Telecommunications, Inc.
    Inventors: Erik Gronvall, Paula Rudenick, Yu Lu
  • Patent number: 7899288
    Abstract: An optical fiber structure includes a first fiber array and a second fiber array, which are placed one on the other. For example, the first fiber array includes a substrate having four V-shaped grooves and four first optical fibers, the output ends of which are linearly arranged and fixed to the grooves. The second fiber array includes a substrate having four V-shaped grooves and four second optical fibers, the output ends of which are linearly arranged and fixed to the grooves. The first optical fiber has a taper portion, in which the core diameter decreases along an optical axis, and the core diameter and the outer diameter of the first optical fiber at the tip of the taper portion thereof are 60 ?m and 80 ?m, respectively. The core diameter and the outer diameter of the second optical fiber are 105 ?m and 125 ?m, respectively.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: March 1, 2011
    Assignee: FUJIFILM Corporation
    Inventor: Shinichi Shimotsu
  • Patent number: 7887244
    Abstract: A connector assembly for reversibly terminating an optical fiber comprises a housing having a cavity extending along a longitudinal axis. An elongate member having a groove extending along a surface thereof is provided within the cavity. An end portion of the fiber is aligned with a fiber stub within the groove such that the stub's splicing face is positioned opposite the fiber's splicing face. A splice anvil is positioned adjacent the member's surface with the anvil's clamping surface overlapping the abutting stub and fiber splicing faces. The clamping mechanism comprises an actuator slideably mounted about the member for movement between a released position and a clamping position in which the inner surface of the actuator displaces the anvil in a direction perpendicular to the longitudinal axis and towards the member's surface, the anvil's clamping surface thus bringing a clamping force to bear on the abutting fiber and fiber stub.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: February 15, 2011
    Assignee: Belden CDT (Canada) Inc.
    Inventors: Luc Milette, Moise Levy
  • Publication number: 20110033156
    Abstract: An optical fiber having microstructured terminal end suitable for reducing Fresnel losses. In an exemplary embodiment, the microstructured surface includes a plurality of protrusions, recesses or combinations thereof that effectively and incrementally change the refractive index of the terminal end of the optical fiber such that the refractive index is gradually drawn closer to the refractive index value of the surrounding environmental medium.
    Type: Application
    Filed: August 5, 2010
    Publication date: February 10, 2011
    Inventors: Jasbinder S. Sanghera, Catalin M. Florea, Ishwar D. Aggarwal, Leslie Brandon Shaw, Lynda E. Busse, Frederic H. Kung
  • Publication number: 20110019962
    Abstract: A sleeve has a handle and extensions to engage a fiber optic connector for insertion into and removal from high density adapters. The sleeve may have multiple connectors installed in a single sleeve and it may be removable. The sleeve has first and second extensions to engage the inner and outer housings, respectively, to insert and remove the fiber optic connector from an adapter.
    Type: Application
    Filed: November 6, 2009
    Publication date: January 27, 2011
    Inventors: Darrell R. Childers, Myron Yount, Russell Granger, Joe Howard, Alan Benner, Robert K. Mullady
  • Patent number: 7874740
    Abstract: A housing (10) for an optical waveguide ferrule (12), includes first distance elements (22, 28) being determinative for a distance between two adjacently arranged housings (10) and being formed by formations of the housing (10), the first distance elements (22, 28) being located opposite each other with respect to one of a center axis (M) of the housing (10) and the optical waveguide ferrule (12) arranged in the housing (10), and the first distance elements (22, 28) being formed by a pair of first distance elements of a first type (22) and a second type (28) differing from the first type (22).
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: January 25, 2011
    Assignee: Harting Electronics GmbH & Co. KG
    Inventor: Rita Hoffmann
  • Patent number: 7856159
    Abstract: An optical element including a transmitting surface section and at least one reflective surface section integrally formed on a main body of the optical element. The transmitting surface section refracts incident light emitted from a predetermined light-emitting position and transmits the light. The reflective surface section reflects the incident light emitted from the light-emitting position such that the light returns to a position differing from the light-emitting position. An optical axis of the transmitting surface section and an optical axis of the reflective surface section are out of alignment such as to be mutually parallel or mutually tilted.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: December 21, 2010
    Assignee: Enplas Corporation
    Inventor: Shimpei Morioka
  • Patent number: 7853112
    Abstract: A telecommunications assembly includes a chassis and a plurality of fiber optic splitter modules mounted within the chassis. Each splitter module includes at least one fiber optic connector. Within an interior of the chassis are positioned at least one fiber optic adapter. Inserting the splitter module through a front opening of the chassis at a mounting location positions the connector of the splitter module for insertion into and mating with the adapter of the chassis. The adapters mounted within the interior of the chassis are integrally formed as part of a removable adapter assembly. A method of mounting a fiber optic splitter module within a telecommunications chassis is also disclosed.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: December 14, 2010
    Assignee: ADC Telecommunications, Inc.
    Inventors: Steven C. Zimmel, Trevor Smith, Ponharith Nhep
  • Patent number: 7845859
    Abstract: A ferrule assembly for terminating at least one fiber of a ribbon cable in a ferrule, where the ferrule assembly is disposable in a housing of an optical connector, is provided. The ferrule assembly includes the ferrule having a mating face, at least one groove for receiving the fiber and at least one through-hole. The ferrule assembly also includes an alignment member holder having at least one alignment member and providing a first channel for the ribbon cable, the alignment member being insertable in the through-hole of the ferrule and having a first length such that an end of the alignment member extends beyond the mating face of the ferrule when the ferrule assembly is assembled.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: December 7, 2010
    Assignee: Amphenol Corporation
    Inventors: Richard F. Roth, Joseph J. George, Sepehr Kiani
  • Patent number: 7841778
    Abstract: An optical connector 10 includes a ferrule 20 to secure the set of multiple optical fibers 100, a plug member 21 to hold the ferrule 20, and a spacer 22 having a pin 23 for guiding, the spacer being integrally fixed to the ferrule 20 by means of inserting the pin 23 into the ferrule 20 to be secured together with the ferrule within the plug member 21, wherein the ferrule 20 has at least one first positioning portion for example a recessed portion 51, 52, and the spacer 22 has at least one second positioning portion for example a projection 61, 62 which is fitted to a corresponding first positioning portion to position the ferrule to the spacer.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: November 30, 2010
    Assignee: The Furukawa Electric Co., Ltd.
    Inventors: Naoya Nishimura, Hideki Miyazaki
  • Patent number: 7841776
    Abstract: Circuits, apparatus, and methods that provide a connector system that can supply both power and data to a mobile computing or other type of device using a single connection. Further examples also provide a power and data adapter that can provide power and data to a mobile computing device using a single cable. Further examples provide an easy disengagement when a cable connected to the connector is pulled. One such example provides a magnetic connector that uncouples without binding when its cord is pulled. Another example prevents power from being provided at a connector insert until the connector insert is placed in a connector receptacle.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: November 30, 2010
    Assignee: Apple Inc.
    Inventors: John C. DiFonzo, Chris Ligtenberg, Michael Culbert
  • Patent number: 7844158
    Abstract: A terminal for mounting to a fiber distribution cable includes a housing having a base and a cover. The cover is connectedly engaged with the base. The terminal further includes a plurality of adapters disposed on the cover. A fiber routing tray having a top panel and a bottom panel is disposed in an interior cavity. The fiber routing tray includes a storage space defined between the top and bottom panels for storing a length of optical fiber. A method for installing a terminal includes providing a terminal having a housing defining an interior cavity. A cable is pulled from the interior cavity of the housing. The cable is spliced to a fiber distribution cable with a splice. The cable is inserted back into the interior cavity. A spliced end of the cable, a spliced end of the fiber distribution cable and the splice are inserted in a retention device.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: November 30, 2010
    Assignee: ADC Telecommunications, Inc.
    Inventors: Erik Gronvall, Paula Rudenick, Yu Lu
  • Patent number: 7837396
    Abstract: This disclosure describes techniques for attaching a connector to a fiber optic cable. As described herein, lengthwise slits are made into the jacket and the buffer tube of a fiber optic cable, thereby exposing interior segments of the optical fibers of the fiber optic cable. A loop is then made in the fiber optic cable at the slits. The ends of the optical fibers can then telescopically slide out the end of the fiber optic cable. When this happens, the exposed interior segments of the optical fibers slide out of the buffer tube and the jacket through the slits, forming a smaller loop within the loop. A connector may then be attached to the exposed ends of the optical fibers. When the fiber optic cable is unlooped, the exposed interior segments of the optical fibers slide back into the buffer tube and jacket. The jacket may then be resealed.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: November 23, 2010
    Assignee: ADC Telecommunications, Inc.
    Inventor: Thomas Marcouiller
  • 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: 7819590
    Abstract: A ferrule for an evanescence field sensor line is specified that has a lower part and a correspondingly attachable upper part. The upper and lower parts respectively have a recess substantially in the shape of a half shell in such a way that in the assembled state a guide tube is formed for holding an optical wavelength in a fashion enclosing the end face. A number of geometric structures for locally fixing the optical wavelength are respectively arranged in the recesses. Furthermore, a pressure sensor having such a ferrule is specified that contains an optical wavelength configured for pressure acquisition by influencing the assigned evanescence field, and at least one optoelectronic module. The ferrule is assigned to the optoelectronic module.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: October 26, 2010
    Assignee: Leoni Automotive Leads GmbH
    Inventors: Dirk Neitzel, Wolfgang Waespy, Horst Kontants
  • Publication number: 20100260456
    Abstract: The present invention provides a plug comprising: at least one contact connected to a cable; a body within which the contact(s) is/are received; and a gland holding the plug on the cable; the contact(s) being received in floating manner inside the body, the body extending along a longitudinal axis, and the body including a cantilevered out middle portion and a tubular front portion extending around the longitudinal axis beyond the middle portion.
    Type: Application
    Filed: April 1, 2010
    Publication date: October 14, 2010
    Applicant: RADIALL
    Inventors: Franck ALCARAZ, Renaud DURAND
  • Patent number: 7811006
    Abstract: A connector for reversibly terminating a cable comprising a buffer cladding surrounding an optical fiber wherein an end portion of the cable is exposed to reveal the optical fiber. The connector comprises a clamping assembly comprising a splice anvil comprising a fiber clamping surface positioned facing a member surface and overlapping a stub splicing face and an optical fiber splicing face. The clamping assembly is adapted for opening by applying a tangential force to the splice anvil, illustratively through engaging an actuating boss with a tool inserted through the opening and applying a force to the actuating boss such that the clamping surface is moved away from the member surface against a spring.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: October 12, 2010
    Assignee: Belden CD (Canada) Inc.
    Inventors: Luc Milette, Moise Levy, Yannick Demers
  • 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
  • Patent number: 7794155
    Abstract: A fiber optic connector assembly includes a connector housing, a connector base, and an optical fiber connector. The connector housing extends along a center axis from a mating end to a cable receiving end with a passage extending therebetween. The mating end is received in a mating connector that is mounted to a panel. The connector base is secured to the mating end of the connector housing and includes a channel extending therethrough. The channel receives an optical fiber. The optical fiber connector is coupled to the optical fiber and mates with the mating connector to optically couple the optical fiber with the mating connector. The optical fiber connector is slidably joined to the connector base to permit the optical fiber connector to axially move along the center axis relative to the connector housing when the connector housing mates with the mating connector.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: September 14, 2010
    Assignee: Tyco Electronics Corporation
    Inventors: Edmund J. Haley, David Robert Baechtle
  • Patent number: 7773843
    Abstract: Bi-directional tap assemblies for two-way fiber topologies are disclosed. The assembly includes a fiber-optic cable having a cable optical fiber adapted to carry bi-directional optical signals and that is preterminated at a mid-span location to form at least one first cable fiber end and at least one second cable fiber end. First and second tether fibers are respectively spliced to the first and second cable fiber ends. In one version of the assembly, the tether fibers are contained in respective first and second tether covers to form first and second tethers that extend in opposite directions from the tap point. In another version of the assembly, the tether fibers are bend-insensitive fibers and are contained in a single tether cover to form a single tether. The tether fibers bend back on themselves within the tether cover and terminate at a common end of the tether, thereby allowing both downstream and upstream optical signals to be accessed at the tether end.
    Type: Grant
    Filed: December 26, 2008
    Date of Patent: August 10, 2010
    Assignee: Corning Cable Systems LLC
    Inventors: Joseph Todd Cody, Michael Paul Kunigonis, Jr., Christopher Paul Lewallen, James Phillip Luther
  • Publication number: 20100195959
    Abstract: A process for fabricating a fiber composite underbody panel for a vehicle begins by laying-up a first fiber composite sheet on a suitable form or tool. Current carrying wiring that is normally carried by the floor is laid in place on the first sheet, with the ends of the wires extending beyond the edges of the sheet. The wires are shielded to prevent the radiation of fields therefrom into the interior of the vehicle. Fiber optic cable is used to carry signals. A second fiber composite sheet is then laid-up on the first sheet. The two sheets with the embedded wires are placed in a heated mold to form the sheets into the desired finished shape and configuration. The ends of the copper wires and the fiber optic cables are then terminated by connectors so that they may be later coupled to the circuitry of the vehicle.
    Type: Application
    Filed: May 2, 2008
    Publication date: August 5, 2010
    Applicant: MAG INDUSTRIAL AUTOMATION SYSTEMS, LLC
    Inventor: Moshe Israel Meidar
  • Patent number: 7766556
    Abstract: A fiber optic connector assembly includes a connector and a carrier. The connector, defining a longitudinal bore extending through the connector and having a first end region and a second end region, includes a ferrule assembly, having an optical fiber extending through the connector, at least partially disposed in the longitudinal bore at the first end region, a tube, defining a passage and having a first end portion disposed in the longitudinal bore at the second end region and a second end region, and a spring disposed in the bore between the ferrule assembly and the tube. The carrier includes a cable end and a connector end engaged with the connector, a termination region disposed between the connector end and the cable end, a fiber support region disposed between the connector end and the termination region, and a take-up region disposed between the connector end and the fiber support region.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: August 3, 2010
    Assignee: ADC Telecommunications, Inc.
    Inventor: Wayne M. Kachmar
  • 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: 7758256
    Abstract: A field-installable optical connector for terminating an optical cable, said connector comprising: (a) a housing having a front and back orientation; (b) a rear body attached to the back of said connector housing; (c) a ferrule assembly disposed in said connector housing, said ferrule assembly comprising at least a ferrule adapted for receiving a fiber of said cable, and a clamping mechanism to the rear of said ferrule, said clamping mechanism comprising at least a platform defining a fiber-receiving channel for receiving said fiber, a first member adjacent to the fiber-receiving channel and having at least one cam surface, and a second member having a second cam surface, said first and second cam surfaces cooperating such that relative movement between said first and second members causes said first member to move toward said fiber-receiving channel; (d) an actuator operatively connected to said second member to cause said second member to move relative said first member upon axial movement of said actuator,
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: July 20, 2010
    Assignee: Tyco Electronics Corporation
    Inventors: Eric James Hopkins, Douglas Harold Rohde, David Donald Erdman
  • 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: 7753596
    Abstract: A multiport includes a multiport housing top piece, and a multiport housing bottom piece welded to the housing top piece. Alternatively, a method for fabricating a multiport includes providing a multiport housing top piece, providing a multiport housing bottom piece, and welding the housing top piece to the housing bottom piece. Additionally, a method of fabricating a multiport housing piece includes providing a body, and welding a plurality of connector adapters to the body. Alternatively, an optical fiber connector closure includes a connector housing top piece, a connector housing bottom piece, and a strength seal positioned between the top piece and the bottom piece such that said connector closure has a burst test rating of about 5 to about 125 Pounds per Square Inch (PSI).
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: July 13, 2010
    Assignee: Corning Cable Systems LLC
    Inventor: Terry D. Cox
  • Patent number: 7756383
    Abstract: A device and method of blocking customer access to a fiber optic distribution cable. A service blocker is positioned between a fiber distribution cable and a customer drop cable within a fiber optic adapter. The service blocker includes a body which does not permit optical transmission between the fiber distribution cable and the customer drop cable. The service blocker includes a first end configured to be inserted within the fiber optic adapter and a second end configured connect with a fiber optic cable connector. A system for mounting fiber optic cables including a service blocker positioned within a bulkhead mounted adapter between two fiber optic cables.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: July 13, 2010
    Assignee: ADC Telecommunications, Inc.
    Inventor: Ronald A. Beck
  • Patent number: 7748911
    Abstract: A connector port is adapted for a (NID) to receive a connectorized optical fiber from inside the NID and a pre-connectorized drop cable from outside the NID. An exterior connector port includes a base positioned within an opening defined by an external wall of the NID, a mount on the base and a connector receptacle secured to the mount adjacent the external wall. An interior connector port includes an insert positioned within an opening defined by an external wall of the NID, a bracket mounted inside the NID and a connector receptacle secured to the bracket. A connector port also includes an insert positioned within an opening defined by a wall of the NID and a connector port secured to the insert. The connector port permits a field technician to readily connect, disconnect and reconfigure optical connections between the connectorized optical fiber and the pre-connectorized drop cable in the field.
    Type: Grant
    Filed: October 22, 2007
    Date of Patent: July 6, 2010
    Assignee: Corning Cable Systems LLC
    Inventors: John A. Keenum, Brad N. Grunwald, Stephen G. Bloodworth
  • Patent number: 7747125
    Abstract: To minimize the space requirement inside a cassette and make cable retention force consistent and easy for fiber routing/rework, a cassette includes a cassette base molded to include a plurality of holders, a cassette cover to close the cassette base, and a plurality of blocks, respectively disposed into the holders, each of the blocks including one or more holes to accommodate one or more fiber cables. The fiber cables are fixed in the holes using a type of adhesive. In addition, bare fibers are placed inside the cassette to communicate respectively with the fiber cables.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: June 29, 2010
    Inventors: Wei Cheng Lee, Jui Yang Hung, Jin Rong Liang
  • Publication number: 20100150504
    Abstract: An optical fiber terminal apparatus includes an optical fiber protection jacket including a pre-defined, longitudinally extending seam that can be opened at a selected location along the jacket to define an opening into the optical fiber protection jacket at the selected location. The apparatus further includes an adapter terminal configured to mate with an outer profile of the optical fiber protection jacket. The adapter terminal includes a body portion that is configured to support a coupling between an optical fiber extending from the opening in the optical fiber protection jacket to a customer optical fiber. The seam may be repeatably and selectively closable.
    Type: Application
    Filed: April 9, 2009
    Publication date: June 17, 2010
    Inventors: Barry Wayne Allen, David J. Braga
  • Patent number: 7734177
    Abstract: Disclosed by the present invention is a system and method for optical fiber transmission. The switching portion of the present invention adopts the single-layered integrated switching technology so as to ensure a relatively simple and easy maintenance compared with the switching in a traditional communication network where said switching is made in the service network layer and the bearer network layer, respectively. Moreover, the present invention implements data transmission via optical fiber throughout the entire telecommunication system such that demands for bandwidth resources are satisfied during the whole data transmission process and the QoS (Quality of Service) of different services as well as rapid and un-blocking switching of the services are ensured in the telecommunication system.
    Type: Grant
    Filed: July 26, 2004
    Date of Patent: June 8, 2010
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Shumiao Jiang
  • 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
  • Publication number: 20100124395
    Abstract: A cable assembly (1) includes an insulative housing (11) having a base portion (110) and a tongue portion (112) extending forwardly from the base portion; a plurality of contacts (113) supported by the insulated housing; at least a lens (120) mounted to the insulated housing; a cable (2B) including a number of wires (21), at least an optic fiber (22) and a strength member (23) therein, the wires respectively connected to the contacts, the optical fiber coupled to the lens, and the strength member wrapped around at least a tab (1106) formed on the base portion; and an adhesive material (1108) applied to the tab to make the strength member securely attached to the tab.
    Type: Application
    Filed: April 16, 2009
    Publication date: May 20, 2010
    Inventors: Yuan-Chieh Lin, Chong Yi
  • Patent number: 7717625
    Abstract: An optical fiber interconnect system wherein the adapter is connected to and released from the holder and the connector is connected to and released from adapter through two push-release connection and release mechanisms. The connector is engaged with the adapter by applying an insertion force to the connector. The connector is released by applying a releasing force to the connection mechanism on the adapter. The system of the invention includes a holder for attachment of the adapter to a front panel. A release opening is provided on the holder for the release of the adapter from the holder from the front of the panel so as to provide access to the back connector.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: May 18, 2010
    Assignee: Illum Technologies, Inc.
    Inventors: Mark Margolin, Gregory Bunin
  • Patent number: 7717626
    Abstract: An optical fiber connector (100) includes a first insulative housing (1), a door (2) assembled in the first housing and an elastic piece (3) with one end retained in the first housing and the other end elastically abutting against the door. The first housing defines a top face (10), a front face (11) connecting with the top face and a pair of sidewalls (13). The first housing further defines a receiving cavity (111) opening through the front face thereof, and each sidewall defines a recess (112) opening through the top face and the inner surface of the receiving cavity near an opening of the receiving cavity. The door is movably assembled at the opening of the receiving cavity and defines a pair of shafts (22) received in the recesses. Each recess integrally defines a protrusion (113) over the shaft therein, so as to prevent the shafts from breaking off the recesses.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: May 18, 2010
    Assignee: Hon Hai Precision Ind. Co., Ltd
    Inventor: Yung-Chang Cheng
  • Patent number: 7715683
    Abstract: A fiber access terminal includes a drop cable side and a distribution cable side. The sides are separated by a frame to which a variety of cable management and cable connections components may be mounted. Optical fibers are routed from drop and distribution cables through a plurality of routing paths to splice trays for connection to other optical fibers. The terminal includes a base and a dome cover mounted to the base defining an enclosed interior. Passageways between the base and the dome cover are closed by removable covers to limit moisture and animals from accessing an interior of the dome cover. A tether connects the removable covers to the frame. The removable covers include one or more break out regions configured for being removed to receive one or more cables.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: May 11, 2010
    Assignee: ADC Telecommunications, Inc.
    Inventors: Scott C. Kowalczyk, Jonathan R. Kaml
  • Patent number: 7715678
    Abstract: A telecommunications enclosure includes a housing for retaining telecommunication lines therein, the housing including at least one of a splice closure and a terminal closure. At least one of the terminal closure and the splice closure includes a loopback testing station having at least one coupling mounted therein. The coupling is adapted to receive a first terminated end of a first telecommunication line and adapted to receive a second terminated end of a second telecommunication line. The testing station permits loss testing of installed distribution lines at a terminal from a central network facility.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: May 11, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Thomas E. Bludau, James D. Erhardt, David Scarponi, George W. Lutgens
  • Patent number: 7712972
    Abstract: The present invention relates to an optical receptacle which prevents the occurrence of a large impact by collision of a plug body with an optical propagation member. The optical receptacle includes a solid sleeve having a cavity hole into which the plug body is inserted from its one end side and which has an even inner diameter so as not to substantially define a gap with respect to an outer diameter of the plug body and an optical propagation member fixedly secured to the other end side of the cavity hole, with the solid sleeve being formed such that a length from an end portion of the cavity hole on the plug body insertion side to the optical propagation member is longer than a maximum length of extension due to the elastic body of the terminal member.
    Type: Grant
    Filed: July 18, 2007
    Date of Patent: May 11, 2010
    Assignee: Fujitsu Limited
    Inventor: Nobuaki Mitamura
  • 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: 7712976
    Abstract: An active cable that is configured to communicate over much of its length using one or more optical fibers, and that includes an integrated electrical connector at least one end. The active cable includes an integrated retiming mechanism. Thus, multiple links of cable may be used while reducing the chance that the jitter will exceed allowable limits. The cable may be an electrical to optical cable, and electrical to electrical cable, or one of many other potential configurations.
    Type: Grant
    Filed: April 10, 2006
    Date of Patent: May 11, 2010
    Assignee: Finisar Corporation
    Inventors: Lewis B. Aronson, Greta Light, The-Linh Nguyen, Darin J. Douma
  • Patent number: 7703990
    Abstract: Furcation bodies and furcation assemblies are disclosed. In one embodiment, a furcation body includes a channel forming a passageway extending from the front end to a back end of the furcation body. The furcation body may accommodate different styles and/or sizes of fiber optic cables. For instance, the furcation body may be secured to either a buffer tube of a buffered drop cable or a cable jacket of an unbuffered drop cable. Additionally, assemblies may include a furcation tube secured to the furcation member back end for protecting the optical fiber extending from the furcation body and/or a fiber optic connector. Furcation assemblies having multiple fibers are also disclosed.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: April 27, 2010
    Assignee: Corning Cable Systems LLC
    Inventors: Michael de Jong, Paul X. Devereaux, Chanh C. Vo
  • Patent number: 7699536
    Abstract: The present invention provides a new releasing mechanism form a cage on the host system for a pluggable optical transceiver. The transceiver includes an optical receptacle, an actuator with a hook that latches with the key hole of the cage, a bail attached so as to rotate in front of the receptacle and a release button. Rotating the bail or pushing the button will bring the seesaw motion of the actuator that disengages the hook with the keyhole and the transceiver is enabled to be extracted from the cage by picking the bail positioned in front of the receptacle.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: April 20, 2010
    Assignee: Sumitomo Electric Industries Ltd.
    Inventors: Satoshi Yoshikawa, Hirokazu Sasaki