Fiber End Held In Ferrule Patents (Class 385/60)
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Patent number: 7717625Abstract: 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: GrantFiled: August 13, 2007Date of Patent: May 18, 2010Assignee: Illum Technologies, Inc.Inventors: Mark Margolin, Gregory Bunin
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Patent number: 7712974Abstract: 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: GrantFiled: October 27, 2006Date of Patent: May 11, 2010Assignee: 3M Innovative Properties CompanyInventors: Akihiko Yazaki, Tomoyasu Oike, Takaya Yamauchi
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Patent number: 7708474Abstract: Various embodiments of duplex fiber optic connectors and optical transceiver modules are provided. One embodiment comprises an optical transceiver module comprising: an integrally-formed housing having a duplex front port with a pair of alignment holes for receiving a pair of ferrules from a duplex fiber optic connector, the duplex front port having an upper flexible retaining element and a lower flexible retaining element for retaining the pair of ferrules from the duplex fiber optic connector; an opto-electronic assembly contained within the housing; and an electrical interface extending from the integrally-formed housing.Type: GrantFiled: January 14, 2009Date of Patent: May 4, 2010Assignee: Avago Technologies Fiber IP (Singapore) Pte. Ltd.Inventors: Tom Sheau Tung Wong, Adrianus J. P. van Haasteren, Tze Wei Lim
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Publication number: 20100104243Abstract: Devices to enhance the reliability of optical networks and to reduce the cost of repair are disclosed in this invention. In particular, compact and inexpensive fiber optic union adapters with built-in protective isolation prevent the transfer of damage from one connectorized fiber optic cable to another. The fiber optic union includes a split sleeve with an interior channel and a fiber stub centrally located within the interior channel. The fiber stub makes direct optical contact with the cable endfaces to enable efficient optical transmission between interconnected cables while providing a low loss, low back reflection adiabatic transition between the waveguide cores of the two cables.Type: ApplicationFiled: January 5, 2010Publication date: April 29, 2010Applicant: TELESCENT INC.Inventor: Anthony Kewitsch
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Publication number: 20100098381Abstract: An optical fiber connector comprises an outer housing configured to mate with a receptacle and a collar body disposed in the outer housing. The collar body receives and secures a ferrule in a first portion of the collar body. The ferrule includes a central bore that defines an axis. The ferrule further includes a fiber stub disposed in a portion of the central bore, the fiber stub comprising a first optical fiber having a first end proximate to an end face of the ferrule and a prepared second end terminating within the ferrule. The collar body further includes a second portion that includes a housing portion to house a gripping device that grips a second optical fiber.Type: ApplicationFiled: February 7, 2008Publication date: April 22, 2010Inventors: Donald K. Larson, Sidney J. Berglund, Paul N. Winberg, James R. Bylander, Takaya Yamauchi, Tomoyasu Oike, Yukino Miyoshi
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Patent number: 7699535Abstract: A ferrule and method are presented that fuses optical fibers, capillaries and the like to ferrules while reducing deformation of the fused component and the ferrule and minimizing stresses within the assembly. Reduced deformation and stress is accomplished by providing high contact angles in a symmetrical, short section of fusion in fusing the component carried by the ferrule to the ferrule. It is particularly applicable to hermetic terminations of polymer clad fiber optics where irregular glass fusion joints cause irregular light leakage at the fiber launch but benefits are significant when used for other fiber and capillary architectures as well.Type: GrantFiled: December 17, 2007Date of Patent: April 20, 2010Assignee: InnovaQuartz Inc.Inventor: Stephen E. Griffin
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Patent number: 7695198Abstract: A latch protection clip for a connector mounted at an end of a cable and having a latch extending from a connector housing to a distal end includes a clip body having fingers configured to engage the cable directly behind the connector housing to secure the clip body to the cable. The latch protection clip also includes a trigger extending from the clip body. The trigger has a lever arm extending from the clip body and a trigger handle at an end of the lever arm opposite the clip body. The trigger handle has an outer surface and at least one pocket recessed inward from the outer surface. Each pocket is configured to receive the distal end of a corresponding latch. The trigger is configured to actuate the latch in an actuation direction when the trigger handle is deflected toward the connector housing. The pocket restricts lateral movement of the latch in a direction transverse to the actuation direction of the latch.Type: GrantFiled: March 30, 2009Date of Patent: April 13, 2010Assignee: Tyco Electronics CorporationInventors: David R. Baechtle, Eric Hopkins
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Patent number: 7695199Abstract: An optical subassembly (“OSA”) for use in optical communications modules is disclosed. The OSA solves various issues related to the insertion and removal of an optical fiber connector into and from the OSA receptacle, including hard plug, wiggle performance, and shavings production. In one embodiment, an optical communications module is disclosed and includes a housing and an optical subassembly of the present invention partially contained within the housing. The optical subassembly includes various components, including a body composed of a first material, and a plug receptacle formed with the body. The plug receptacle includes an inner surface on which surface features, such as threads, are formed. A hollow cylindrical sleeve composed of a second material is received in the plug receptacle such that the outer sleeve surface engages the surface features of the plug receptacle inner surface and such that an optical fiber connector can be received by the sleeve.Type: GrantFiled: July 20, 2006Date of Patent: April 13, 2010Assignee: Finisar CorporationInventors: Tat Ming Teo, Chris Kiyoshi Togami, Jinxiang Liu
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Publication number: 20100086257Abstract: A fiber optic splice housing and integral dry mate connector system. In a described embodiment, a fiber optic connection system includes optical fiber sections in respective conduit sections. Each of the conduit sections is received in the housing assembly. An optical connection between the optical fiber sections is positioned within the housing assembly.Type: ApplicationFiled: December 8, 2009Publication date: April 8, 2010Applicant: WELLDYNAMICS, B.V.Inventors: Paul D. RINGGENBERG, NEAL G. SKINNER, John L. MAIDA, JR., David O. JOHNSON
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Patent number: 7690848Abstract: The invention relates to an optical fiber plug connector, comprising at least one pair of plug connectors and a coupling, whereby each plug connector comprises a ferrule, each two ferrules of a pair of plug connectors are detachably guided and aligned together within a guide sleeve and the coupling has a housing, for each of the plug connectors. According to the invention, a compact space-saving optical fiber plug connector made from few components may be achieved, whereby the coupling is made from only one component.Type: GrantFiled: August 26, 2008Date of Patent: April 6, 2010Assignee: ADC GmbHInventors: Hans-Joachim Faika, Dietrich Rund, Hans-Peter Sandeck
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Publication number: 20100080511Abstract: Methods for centering at least one optical fiber (10) having a centerline (16) in a connector ferrule (100) having at least one bore (120) with a central axis (AC) is disclosed. One method includes inserting a bare-fiber portion (13) into a ferrule bore so that at least a section (10S) of the bare-fiber portion extends beyond the ferrule front end (106). The method also includes selectively applying an amount of energy to the bare-fiber section to form a locally deformable region (19), and forming at a bulge (250) in the locally deformable region. The method also includes causing the bulge to form a force-fit with the bore at the ferrule front end, thereby substantially centering the optical fiber centerline along the bore central axis. Methods of centering nano-engineered optical fibers are also disclosed, wherein the optical fiber end is processed so that a substantially void-free fiber end (14) is made to substantially coincide with the ferrule front end.Type: ApplicationFiled: September 30, 2008Publication date: April 1, 2010Inventors: James P. Luther, Darrin M. Miller
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Patent number: 7686519Abstract: A female fiber optic connector includes an outer housing, a single internal male fiber optic connector, and a fiber optic adapter. The outer housing has a first end, which receives a fiber optic cable, positioned opposite from a second end, which defines a connector port for receiving an external male connector. The single internal male fiber optic connector is positioned within the outer housing and includes a ferrule in which a fiber is terminated. The fiber optic adapter is positioned within the outer housing and includes an alignment sleeve, a first end, which receives the single internal male fiber optic connector with the ferrule of the single internal male fiber optic connector positioned within the alignment sleeve, and an opposite second end facing toward the connector port and being configured so that a ferrule of the external male connector fits within the alignment sleeve when inserted in the connector port.Type: GrantFiled: June 18, 2007Date of Patent: March 30, 2010Assignee: ADC Telecommunications, Inc.Inventor: Yu Lu
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Patent number: 7674047Abstract: A casing includes a solid sleeve and a split sleeve in combination to provide a connection between a fiber stub and a ferrule containing an optical fiber. The arrangement prevents wiggle of the ferrule, and also does so without the tight tolerances that would otherwise be required in solid sleeve systems.Type: GrantFiled: March 23, 2009Date of Patent: March 9, 2010Assignee: Opnext, Inc.Inventors: Jianyao Chen, Frank Yashar
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Publication number: 20100054666Abstract: An optical receptacle that enhances the optical coupling tolerance is disclosed. The optical receptacle of the invention provides, in stead of the coupling fiber installed in a conventional optical receptacle, a glass member with a diameter substantially equal to the diameter of the external fiber. The glass member, which is held by the support, provides a convex surface that abuts against the top of the external ferrule and another surface inclined with the optical axis to prevent the light reflected thereat from returning the optical device. The glass member has a substantially homogeneous distribution in the refractive index thereof; accordingly, the fluctuation in the optical coupling with the external ferrule may be reduced.Type: ApplicationFiled: August 25, 2009Publication date: March 4, 2010Applicant: Sumitomo Electric Industries, Ltd.Inventors: Yasunori MICHITSUJI, Hiromi NAKANISHI, Kenji HIRAYAMA
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Patent number: 7665901Abstract: Devices to enhance the reliability of optical networks and to reduce the cost of repair are disclosed in this invention. In particular, compact and inexpensive fiber optic union adapters with built-in protective isolation prevent the transfer of damage from one connectorized fiber optic cable to another. The fiber optic union includes a split sleeve with an interior channel and a fiber stub centrally located within the interior channel. The fiber stub makes direct optical contact with the cable endfaces to enable efficient optical transmission between interconnected cables while providing a low loss, low back reflection adiabatic transition between the waveguide cores of the two cables.Type: GrantFiled: October 2, 2007Date of Patent: February 23, 2010Assignee: Telescent Inc.Inventor: Anthony Stephen Kewitsch
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Publication number: 20100034502Abstract: The present disclosure relates to a fiber optic adapter for use with fiber optic connectors. The fiber optic adapter includes a housing having a first axial end portion defining a first adapter port and a second axial end portion defining a second adapter port. The fiber optic adapter further includes a first retaining mechanism that is operably associated with the first axial end portion for retaining a first fiber optic connector in the first adapter port of the fiber optic adapter and a second retaining mechanism that is operably associated with the first axial end portion for retaining the first fiber optic connector in the first adapter port of the fiber optic adapter.Type: ApplicationFiled: September 22, 2009Publication date: February 11, 2010Applicant: ADC TELECOMMUNICATIONS, INC.Inventors: Yu Lu, Randy Reagan
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Patent number: 7654748Abstract: A re-terminable, no-crimp ST-type optical connector assembly includes a spring-loaded ferrule holder assembly and a reusable activation system for termination of the assembly. The optical connector can be terminated by a suitable cam activation tool. The connector includes a housing, such as a bayonet, matable to a mating adapter, a backbone retained within a rear of the housing, a ferrule holder provided within the backbone, and a cam provided between the ferrule holder and the backbone. The ferrule holder includes an alignment key exposed to mate with a cam activation tool to lock rotation of the ferrule holder relative to other connector components. The cam includes a cam activation cutout at a front face thereof that mates with a cam activation tool interface to enable rotation of the cam between de-activated and activated positions, the cam activation cutout also receiving the alignment key of the ferrule holder therethrough.Type: GrantFiled: June 12, 2007Date of Patent: February 2, 2010Assignee: Panduit Corp.Inventors: Gregory L. Kuffel, Samuel M. Marrs, Shaun P. Brouwer, Robert T. Fitzpatrick, Phillip J. Irwin, Matthew M. Wagner
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Patent number: 7654749Abstract: Fiberoptic connector and adapter assembly includes a fiberoptic connector received within an adapter. The connector has a cover on the connector housing. The cover pivots between open and closed positions to expose or cover, respectively, a optical fiber contained within the connector. Longitudinal guides of the connector are received cooperating with longitudinal guides of the adapter to direct the connector into the adapter in a prescribed alignment. A cam pin is carried on the adapter to engage a cam pin receiving slot on the cover to urge the cover to the open position as the connector is inserted into the adapter.Type: GrantFiled: December 11, 2008Date of Patent: February 2, 2010Assignee: ADC Telecommunications, Inc.Inventor: Liang-Ju Lu
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Patent number: 7648285Abstract: An optical waveguide connecter includes a socket part having a first waveguide contact placed in a channel of the socket part, and a plug part with a second waveguide contact placed in a channel of the plug part. The plug part channel is sealed with a piston displaceable counter to the force of a spring. The socket part has a pivotable cap for sealing an interface surface of the first waveguide contact. The plug part has a path for receiving the piston, with a section of the path being inclined to the axis of the second waveguide contact. During a plugging process, the cap displaced the spring-loaded piston, frees the first waveguide contact of socket part, frees the second waveguide contact in the plug part channel and is guided through the path.Type: GrantFiled: November 22, 2005Date of Patent: January 19, 2010Assignee: GISMA Steckverbinder GmbHInventors: Manfred Maletzky, Oliver Hirsch
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Patent number: 7641395Abstract: A fiber optic splice housing and integral dry mate connector system. In a described embodiment, a fiber optic connection system includes optical fiber sections in respective conduit sections. Each of the conduit sections is received in the housing assembly. An optical connection between the optical fiber sections is positioned within the housing assembly.Type: GrantFiled: June 22, 2004Date of Patent: January 5, 2010Assignee: Halliburton Energy Serives, Inc.Inventors: Paul D. Ringgenberg, Neal G. Skinner, John L. Maida, David O. Johnson
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Publication number: 20090310916Abstract: A ruggedized fiber optic connector assembly includes a substantially hollow plug housing; and a glue body disposed within the substantially hollow plug housing; wherein the glue body includes a first portion that is configured to engage and retain an optical cable comprising an optical fiber and one or more strength members; wherein the glue body includes a second portion that is configured to engage and retain a connector sub-assembly comprising an optical ferrule; wherein the second portion of the glue body includes a pair of opposed snap hooks that are configured to engage a corresponding pair of opposed recesses of the connector sub-assembly; and wherein the optical fiber and the optical ferrule are optically coupled.Type: ApplicationFiled: August 3, 2009Publication date: December 17, 2009Inventors: James P. Luther, Thomas Theuerkorn, Xin Liu
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Patent number: 7630610Abstract: A loop back device can include a dust cap with which to protect the loop back ferrule after use to facilitate reuse of the loop back device. The dust cap can be provided at a free end of the loop back device when the loop back device is secured to a tether connector. When the loop back device is removed from the tether connector, the dust cap is removed from the free end of the device and is mounted over the ferrule to protect the loop back ferrule.Type: GrantFiled: June 29, 2007Date of Patent: December 8, 2009Assignee: ADC Telecommunications, Inc.Inventors: John Clifton Cobb, III, Yu Lu, Randy Reagan
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Patent number: 7625129Abstract: A multi channel connector includes a first connector housing and a mating second connector housing. The first connector housing includes a plurality of first termini, each first terminus resting upon a respective bench or within a respective channel. The second connector housing loosely holds a plurality of second termini. In a first embodiment, a biasing member is disposed in the first connector housing and when the first and second housings are mated, the biasing member engages the plurality of second termini to press the second termini onto engagement with respective benches within the first housing to thereby ensure accurate end-to-end alignments between the plurality of first termini and the plurality of second termini. In a second embodiment, chamfers are formed at openings to the respective channels and beveled outer edges are formed at tip ends of the second termini to guide the second termini into respective channels, when the first and second connector housings are mated.Type: GrantFiled: June 19, 2007Date of Patent: December 1, 2009Assignee: Commscope, Inc. of North CarolinaInventors: Jeffrey D. Nielson, Matthew Cruz
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Patent number: 7625130Abstract: An optical component is improved in workability during assembly operation thereof and makes it possible to easily position an optical fiber. A first ferrule is press-fitted into one end of a central hole of a connecting member, and a second ferrule is press-fitted into the other end of the central hole of the connecting member. An optical fiber is inserted through the first and second ferrules. A coating which coats an intermediate portion of the optical fiber of an optical fiber cord is accommodated in a communicating portion of the central hole of the connecting member in a manner such that the coating is brought into abutment with the first and second ferrules.Type: GrantFiled: June 25, 2008Date of Patent: December 1, 2009Assignee: Japan Aviation Electronics Industry LimitedInventors: Yasutaka Hiroki, Yuichi Koreeda, Naoki Katagiyama
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Patent number: 7621673Abstract: One or a plurality of flat portions and one or a plurality of partial cylindrical portions connected to such flat portions are an exterior surface of a glass capillary tube for holding an optical fiber, with all partial cylindrical portions having the same single central axis and being defined by a common radius, and an insertion hole, into which an optical fiber is inserted and held, is formed at a position deviated from the central axis in a direction perpendicular to one of the flat portions, which serves as a benchmark.Type: GrantFiled: February 7, 2007Date of Patent: November 24, 2009Assignee: Nippon Electric Glass Co., Ltd.Inventors: Hirokazu Takeuchi, Nobuo Funabiki, Sotohiro Nakajima
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Patent number: 7621675Abstract: According to an example embodiment of the invention a one-piece retention housing is utilized for terminating an optical fiber cable. The retention housing attaches to strength members within the cable, providing tensile strength and a means for further mating with components of an optical fiber connector assembly. The retention housing is used as part of a kit for terminating and securing the optical fiber cable connector to a complementary receptacle or terminal for drop-cable deployments in optical access networks and outside plant applications.Type: GrantFiled: February 13, 2009Date of Patent: November 24, 2009Assignee: OFS Fitel, LLCInventor: Kelvin B. Bradley
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Patent number: 7621676Abstract: An optical connector includes a receptacle body 40 having an engage hole 46 formed in a peripheral wall 45 of a chamber 44, a pigtail body 50 having a base body 51 contained in the chamber 44 and a locking protrusion 56 engaged in the engage hole 46 to attach the pigtail body 50, and a ferrule assembly 60 being inserted in a container 53 in the base body 51 so that the ferrule 62 is positioned in a receptacle cylinder 52, and a spring 70 inserted through an opening 54 in the base body 51 and pressing the ferrule 62 forward, wherein a stopper 73 is formed in the spring 70 as an integral part of the spring 70. A locking part 73b included in the stopper 73 is positioned in a recess 63 in the ferrule 62.Type: GrantFiled: March 20, 2009Date of Patent: November 24, 2009Assignee: Hosiden CorporationInventors: Hiroshi Nakagawa, Takeshi Isoda
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Patent number: 7614797Abstract: The present disclosure relates to a backward compatibility converter including a converter housing having a first end positioned opposite from a second end. The first end of the converter housing includes an end wall defining a first opening. The second end of the converter housing defines a second opening. The converter housing defines an internal passage that extends through the converter housing from the first opening to the second opening. The first end of the converter housing includes two paddles that project outwardly from the end wall. The paddles are positioned at opposite sides of the first opening and include inner surfaces that oppose each other. The converter housing defines internal threads located within the internal passage. The backward compatibility converter also includes a coupling nut rotatably mounted about an exterior of the converter housing adjacent the second end of the converter housing.Type: GrantFiled: January 24, 2007Date of Patent: November 10, 2009Assignee: ADC Telecommunications, Inc.Inventors: Yu Lu, Randy Reagan
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Patent number: 7613371Abstract: A device and a method for the rotary coupling of optical fibers is disclosed. The coupling device includes a first housing element and a second housing element. The coupling device has a rotation axis around which the first and second housing element can rotate relative to each other. The device also includes a first fiber positioning element for the positioning of a section of a first optical fiber relative to the first housing element, a second fiber positioning element for the positioning of a section of a second optical fiber relative to the second housing element, and a fiber guiding body in which a fiber guiding capillary is constructed. The fiber guiding capillary extends continuously along the rotation axis from a first fiber insertion opening for the reception of an end section of the first optical fiber, to a second fiber insertion opening for the reception of an end section of the second optical fiber.Type: GrantFiled: September 28, 2007Date of Patent: November 3, 2009Assignee: Fachhochschule KoblenzInventor: Georg Ankerhold
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Patent number: 7604417Abstract: A terminus for a fiber optic cable includes a ferrule. An optic fiber of the cable passes through a central bore of the ferrule and is attached to a lens seated in a conical or cylindrical seat formed in an end surface of the ferrule by an epoxy. Preferably, the seat permits the lens to be recessed below the end surface of the ferrule. An inspection slot may be formed through the seat to allow a technician to inspect the state of the epoxy attachment. The ferrule may also include retaining features, such as an o-ring encircling a groove in the outer circumference of the ferrule or a metal sleeve crimped or otherwise attached to the ferrule to permit the ferrule to be easily attached to a cable retention sleeve, connector body or similar structure.Type: GrantFiled: June 19, 2007Date of Patent: October 20, 2009Assignee: Commscope, Inc. of North CarolinaInventors: Jeffrey D. Nielson, Timothy W. Anderson, Matthew Cruz
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Publication number: 20090245732Abstract: The present disclosure provides systems and methods for securing an information network through positional distinguishing of connectors and adapters. A communications connector system associated with the present disclosure includes at least a first patch cord connector assembly including a patch cord terminated at least at one end by a duplex connector. The duplex connector includes: (i) a connector housing clip adapted to enclose and securely position at least a portion of the terminated end of the patch cord and at least a portion of each of a pair of ferrule housings; and (ii) a pair of connector subassemblies. Each subassembly defines an inner cavity to allow a ferrule mounted with respect to one of the pair of ferrule housings to pass through the connector subassembly. Each of the subassemblies extend outwardly with respect to the connector housing clip and the ferrule housings and are adapted to securely mate with a corresponding pair of receptacles.Type: ApplicationFiled: April 23, 2009Publication date: October 1, 2009Applicant: Ortronics, Inc.Inventor: Adam Murano
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Patent number: 7591595Abstract: The present disclosure relates to a fiber optic adapter for use with fiber optic connectors. The fiber optic adapter includes a housing having a first axial end portion defining a first adapter port and a second axial end portion defining a second adapter port. The fiber optic adapter further includes a first retaining mechanism that is operably associated with the first axial end portion for retaining a first fiber optic connector in the first adapter port of the fiber optic adapter and a second retaining mechanism that is operably associated with the first axial end portion for retaining the first fiber optic connector in the first adapter port of the fiber optic adapter.Type: GrantFiled: January 24, 2007Date of Patent: September 22, 2009Assignee: ADC Telelcommunications, Inc.Inventors: Yu Lu, Randy Reagan
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Patent number: 7588374Abstract: An optical ferrule includes a positioning block and a ferrule main body. The ferrule main body is integrally formed by molding a resin over the positioning block. The positioning block includes an optical fiber insertion hole formation portion having optical fiber insertion holes and guide pin hole formation portions which are provided on both sides of the positioning block and which have guide pin holes. On a front end side of the ferrule main body, the positioning block is disposed. The ferrule main body has a hollow part on its rear end side.Type: GrantFiled: October 2, 2008Date of Patent: September 15, 2009Assignee: Fujikura Ltd.Inventors: Akito Nishimura, Kunihiko Fujiwara, Takahiko Sabano
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Publication number: 20090226136Abstract: An SC-type optical receptacle includes a first and a second holder each having a hollow chamber longitudinally penetrating therethrough, and a hollow cylindrical sleeve fitted in the chamber of the holders to thereby retain the frontal facets of a pair of ferrules so as to keep the frontal facets butted to each other. The wall thickness of the sleeve is constant over the entire length thereof, and is not less than 0.55 mm.Type: ApplicationFiled: February 19, 2009Publication date: September 10, 2009Applicant: NEC Electronics CorporationInventors: Junichi SHIMIZU, Akihiro ITO
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Patent number: 7585116Abstract: A hermaphroditic connector for mounting to a cable having a plurality of optical fibers and connecting the fibers to mating optical fibers wherein the optical fibers and mating optical fibers have termini mounted to the respective ends thereof, and wherein the termini of at least one of the optical fibers is slidably mounted and biased to provide a predetermined amount of longitudinal travel during connection includes a plug insert for mounting the termini, a generally cylindrical plug body for receiving the plug insert through an open end thereof, the plug body including a mating end with a plurality of mating features configured to cooperate with corresponding mating features of a second connector to align the termini of the first and second connectors in opposed relationship, a plurality of ears extending radially from the mating end of the plug body, a coupling nut slidably mounted on the plug including a groove formed between a plurality of ribs extending around an inside nut so that rotation of the coupType: GrantFiled: February 29, 2008Date of Patent: September 8, 2009Assignee: Fiber Systems InternationalInventors: Bryan D. Cull, Jon M. Woodruff, Jaime Castillega
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Patent number: 7572065Abstract: The present disclosure relates to a fiber optic connector for use with a fiber optic adapter. The fiber optic connector includes a connector housing having an end defining a plug portion. A ferrule assembly is mounted at least partially within the connector housing. The ferrule assembly includes a ferrule located at the plug portion of the connector housing. A sealing member is mounted about an exterior of the connector housing for providing a seal between the connector housing and the adapter. The fiber optic connector further includes first and second separate retaining mechanism for retaining the fiber optic connector within the fiber optic adapter.Type: GrantFiled: January 24, 2007Date of Patent: August 11, 2009Assignee: ADC Telecommunications, Inc.Inventors: Yu Lu, Randy Reagan
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Patent number: 7568844Abstract: A ruggedized fiber optic connector assembly includes a substantially hollow plug housing; and a glue body disposed within the substantially hollow plug housing; wherein the glue body includes a first portion that is configured to engage and retain an optical cable comprising an optical fiber and one or more strength members; wherein the glue body includes a second portion that is configured to engage and retain a connector sub-assembly comprising an optical ferrule; wherein the second portion of the glue body includes a pair of opposed snap hooks that are configured to engage a corresponding pair of opposed recesses of the connector sub-assembly; and wherein the optical fiber and the optical ferrule are optically coupled.Type: GrantFiled: August 15, 2006Date of Patent: August 4, 2009Assignee: Corning Cable Systems LLCInventors: James P. Luther, Thomas Theuerkorn, Xin Liu
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Patent number: 7563034Abstract: A casing includes a solid sleeve and a split sleeve in combination to provide a connection between a fiber stub and a ferrule containing an optical fiber. The arrangement prevents wiggle of the ferrule, and also does so without the tight tolerances that would otherwise be required in solid sleeve systems.Type: GrantFiled: September 21, 2007Date of Patent: July 21, 2009Assignee: Opnext, Inc.Inventors: Jianyao Chen, Frank Yashar
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Patent number: 7559700Abstract: A shading member-equipped optical connector plug is compact while having the compatibility to engage existing connector receptacles. The connector plug includes a shading member having a shutter housing enclosing a plug frame slidably on an outside thereof. The shutter housing is inserted into an engagement opening of a connector receptacle to be engaged when the shading member-equipped optical connector is connected. The shading member also has a shutter one end of which is supported by the shutter housing at a front part of the housing and another end of which is urged by an elastic force and closes so as to shade the optical fibers at a position in front of the ferrule, and an elastic member disposed between the plug frame and the shutter housing that urges the shutter housing forward.Type: GrantFiled: December 18, 2007Date of Patent: July 14, 2009Assignee: Honda Tsushin Kogyo Co., Ltd.Inventors: Toshiaki Eguchi, Naohide Goto, Yasuaki Ohkubo
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Patent number: 7559699Abstract: An optical coupling module for suppressing optical loss by improving degradation of a wiggle characteristic exhibited upon application of an external force. A sleeve joins end faces of optical fibers. A sleeve casing covers the sleeve to protect the joined surfaces of the optical fibers. A splitting slit portion having a return structure is formed in a side of the sleeve. The sleeve casing comprises an inner sleeve casing for covering the sleeve, and an outer sleeve casing for covering the inner sleeve casing. The inner sleeve casing has a side formed with slits. The outer sleeve casing has an inner surface formed with guards for holding the sleeve. The outer sleeve casing is slidingly mounted by inserting the guards into the slits.Type: GrantFiled: November 19, 2007Date of Patent: July 14, 2009Assignee: Fujitsu LimitedInventor: Jun Tamada
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Patent number: 7556437Abstract: A fiber optic connector assembly includes a fiber optic connector having an outer housing with a connector interface end, a connector interface housing mounted at the connector interface end, and a retention nut rotatably mounted about the outer housing. The connector interface housing has a first end supporting a ferrule and a second end forming a base supported by a retention block mounted within the outer housing. A cap for covering the connector interface end includes internal threads and a stabilizing element. The internal threads receive external threads of the retention nut such that the retention nut secures the cap to the fiber optic connector. The stabilizing element is positioned within the cap and compresses against the retention block when the cap is secured to the fiber optic connector by the retention nut to maintain alignment of the connector interface housing relative to the outer housing.Type: GrantFiled: March 13, 2008Date of Patent: July 7, 2009Assignee: ADC Telecommunications, Inc.Inventor: Scott Droege
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Patent number: 7556438Abstract: An angle type optical connector enables a splicing operation of an optical fiber cable accurately and stably without requiring skilled labor and having a superior on-site installation property. An optical connector is provided with a splicing section for securely supporting an incorporated optical fiber securely supported at a ferrule and an optical fiber of an outside optical fiber cable in an end-abutting condition. The body of the optical connector is provided with a cable holding member able to hold an optical fiber cable. The cable holding member can be set at a temporary position where it makes an optical fiber of the optical fiber cable abut against the incorporated optical fiber at the splicing section in the state holding the optical fiber cable and bends a covered optical fiber of the optical fiber cable between the splicing section and the cable holding member by a pressing force in the lengthwise direction.Type: GrantFiled: June 23, 2005Date of Patent: July 7, 2009Assignees: 3M Innovative Properties Company, Nippon Telegraph and Telephone CorporationInventors: Tomayasu Oike, Takaya Yamauchi, Akihiko Yazaki, Tsunetaka Ema, Kenichi Nakazawa, Yasuhiko Hoshino
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Patent number: 7556436Abstract: The invention relates to an optical connector system including a backpanel and at least one substrate, said substrate having at least one substrate housing assembly and said backpanel having at least one backpanel housing assembly for establishing an optical interface. The substrate housing assembly is attached to said substrate and includes a further housing slidably mounted in a z-direction of said substrate housing assembly. Accordingly no residual forces are exerted on the backpanel after establishment of the optical interface.Type: GrantFiled: February 2, 2005Date of Patent: July 7, 2009Assignee: FCIInventor: Hendrikus Petrus Gijsbertus Van Der Steen
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Patent number: 7553089Abstract: An optical connector which is suitable for connection to jacketed cable includes a housing and a ferrule assembly. The ferrule assembly includes a front portion having a first geometry, and the housing includes a receiving portion having a second geometry that mates with the first geometry to prevent rotation of the ferrule assembly relative to the housing. A spring biases the ferrule assembly forward to assist mating of the first and second geometries.Type: GrantFiled: June 15, 2007Date of Patent: June 30, 2009Assignee: Tyco Electronics CorporationInventors: Michael Lawrence Gurreri, Douglas Harold Rohde, Eric James Hopkins, David Donald Erdman
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Publication number: 20090148103Abstract: A fiber optic connector and cable assembly includes a cable with one or more strength members secured to a connector that is connectable to both a hardened and a non-hardened fiber optic adapter. The cable can include multiple cable types with various shapes and strength member configurations. The connector includes a connector housing having a one-piece main body and a cover piece mounted thereon. The one-piece main body defines a plug portion compatible with the adapters. A ferrule assembly is mounted in the plug portion and biased outwardly by a spring. An insert within the connector housing includes a spring stop for holding the spring and a cable retention portion for securing the strength members of the cable. The spring stop and the cable retention portion can be included on a one-piece insert or they can separately be included on separate inserts.Type: ApplicationFiled: September 3, 2008Publication date: June 11, 2009Inventors: Yu Lu, Randy Reagan
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Publication number: 20090148102Abstract: A fiber optic connector is disclosed for use with both a hardened fiber optic adapter and a non-hardened fiber optic adapter. The connector includes a connector housing having an end defining a plug portion. The plug portion includes first and second sets of retaining features for retaining the connector. The first and second retaining feature sets retain the connector within the hardened and unhardened adapters respectively. A threaded member can be included on the connector to threadingly engage and connect the connector to the hardened adapter. A sliding lock can be included on the connector to lock the connector to the non-hardened adapter when slid into a locking position. The sliding lock can be mounted to the threaded member. The sliding lock can include protrusions that engage and lock the non-hardened adapter when in the locking position thereby locking the non-hardened adapter to the connector. The sliding lock can include a positioning latch to maintain it in the locking position.Type: ApplicationFiled: September 3, 2008Publication date: June 11, 2009Inventors: Yu Lu, Randy Reagan, Craig M. Standish
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Patent number: 7540667Abstract: The present disclosure provides systems and methods for securing an information network through positional distinguishing of connectors and adapters. A communications connector system associated with the present disclosure includes at least a first patch cord connector assembly including a patch cord terminated at least at one end by a duplex connector. The duplex connector includes: (i) a connector housing clip adapted to enclose and securely position at least a portion of the terminated end of the patch cord and at least a portion of each of a pair of ferrule housings; and (ii) a pair of connector subassemblies. Each subassembly defines an inner cavity to allow a ferrule mounted with respect to one of the pair of ferrule housings to pass through the connector subassembly. Each of the subassemblies extend outwardly with respect to the connector housing clip and the ferrule housings and are adapted to securely mate with a corresponding pair of receptacles.Type: GrantFiled: August 1, 2007Date of Patent: June 2, 2009Assignee: Ortronics, Inc.Inventor: Adam Murano
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Patent number: 7540666Abstract: The present invention provides a multi-fiber fiber optic connector assembly providing articulated force application, including: a ferrule holder including an x-pivot component and a y-pivot component, wherein the x-pivot component of the ferrule holder is operable for providing relative rotational movement about the x-axis of the multi-fiber fiber optic connector assembly and the y-pivot component of the ferrule holder is operable for providing relative rotational movement about the x-axis of the multi-fiber fiber optic connector assembly; a multi-fiber ferrule comprising a plurality of optical connection points coupled to the ferrule holder; and a biasing member coupled to the ferrule holder and the multi-fiber ferrule, wherein the biasing member is operable for transferring a force through the ferrule holder and to the multi-fiber ferrule, and wherein the y-pivot component of the ferrule holder is coupled to the biasing member, the x-pivot component of the ferrule holder is coupled to the y-pivot componentType: GrantFiled: February 27, 2007Date of Patent: June 2, 2009Assignee: Corning Cable Systems LLCInventors: James Phillip Luther, Thomas Theuerkorn
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Patent number: 7540668Abstract: A transparent ferrule is fused to an end of an optical fiber to increase the coupling area without altering the input numerical aperture of the fiber system. This is accomplished by controlling the length of the area at which the transparent ferrule is fused or welded. In addition, an extended ferrule portion is situated behind the fusion area and is separated from the fiber core such that light that fails to couple to the core is reflected from the inner diameter of the extended ferrule portion away from the fiber core, where it can be deflected or dissipated by a beam block or absorptive material. The transparent ferrule is formed from a plurality of relative thin wall ferrules that are successively fused from the side to form at the least the termination or coupling end of the transparent ferrule.Type: GrantFiled: December 21, 2007Date of Patent: June 2, 2009Inventor: Joe D. Brown
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Patent number: 7537393Abstract: 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: May 22, 2006Date of Patent: May 26, 2009Assignee: Commscope, Inc. of North CarolinaInventors: Timothy W. Anderson, Richard L. Case