Having At Least One Layer Compressively Fixed (e.g., Crimp, Tightening Screws, Etc.) Patents (Class 385/87)
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Publication number: 20120328249Abstract: The disclosure is directed to cable assemblies having at least one fiber optic connector and methods for making the same. In particular, fiber optic cable assemblies having a crimp band disposed about a cushioning member on a fiber optic cable along with methods for making the same are disclosed. The cable assemblies including the cushioning member are advantageous since they provide a load distribution of the crimp band about the fiber optic cable which may preserve optical performance and/or enable the use of fiber optic cables having smaller diameters. Additionally, the fiber optic cables of the cable assemblies may be sub-units of a larger cable.Type: ApplicationFiled: June 22, 2012Publication date: December 27, 2012Inventors: Jose Manuel Hernandez Quintana, Wesley Allan Yates
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Patent number: 8328432Abstract: A fiber optic cable assembly includes a fiber optic connector and a fiber optic cable having at least one strength element, the connector and cable held together by a crimp band. The crimp band may include at least one lateral aperture on at least one end for inspecting the disposition of the strength element prior to crimping to ensure a uniform distribution of the strength element.Type: GrantFiled: November 23, 2010Date of Patent: December 11, 2012Assignee: Corning Cable Systems LLCInventors: Terry L. Cooke, David L. Dean, Jr., Christopher S. Houser, James M. Wilson
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Patent number: 8313250Abstract: An inlet device is described herein for inserting a telecommunication cable into a telecommunications enclosure. An exemplary inlet device comprises a housing, and a compression member. The housing can include a compressible portion at the second end of the housing and a securing zone adjacent to the first end of the housing. The securing zone can include a plurality of deformable locking elements which protrude from opposite sides of the housing to lock the inlet device in a close fitting port of a telecommunication enclosure.Type: GrantFiled: March 17, 2009Date of Patent: November 20, 2012Assignee: 3M Innovative Properties CompanyInventor: Patrick Drouard
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Patent number: 8267596Abstract: A fiber optic connector assembly includes a fiber optic cable with one or more optical fiber ribbons attached to a fiber optic connector. The connector includes a ferrule assembly and a crimp body with a fiber access aperture. The aperture has at least two walls defining a first width and a second width defining a predetermined delta and a predetermined aspect ratio. The delta and aspect ratio provide optical fiber access for alignment of the optical fiber ribbon to the optical fiber ferrule assembly. A method of making the fiber optic connector assembly is also disclosed.Type: GrantFiled: August 23, 2010Date of Patent: September 18, 2012Assignee: Corning Cable Systems LLCInventor: Thomas Theuerkorn
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Patent number: 8256970Abstract: An improved, reversibly terminable fiber stub connector assembly is provided that can be readily and positively terminated in the field using simple termination tools. This allows repositioning or replacement of fiber optic cable field fibers if termination is not acceptable in performance. The tool may be a hand-held tool, or used in conjunction with a connector support structure to provide simplified and expeditious field termination of fiber optic cables. The cam tool can include a throughbore that enables connection of a patchcord to the stub fiber of the connector during or shortly after termination without removal of the termination tool. Accordingly, field testing of the connection can be made at the site of termination.Type: GrantFiled: September 29, 2010Date of Patent: September 4, 2012Assignee: Panduit Corp.Inventors: Samuel M. Marrs, Jerry A. Wiltjer, Shaun P. Brouwer
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Patent number: 8256971Abstract: A fiber optic stub fiber connector for reversibly and nondestructively terminating an inserted field fiber having a buffer over at least a portion thereof. The connector includes a housing and a ferrule including a stub fiber disposed within and extending from a bore through the ferrule. The ferrule is generally at least partially disposed within and supported by the housing. The connector further includes a reversible actuator for reversibly and nondestructively terminating the inserted field fiber to the stub fiber. The reversible actuator includes a buffer clamp for engaging with the buffer to simultaneously provide reversible and nondestructive strain relief to the terminated field fiber.Type: GrantFiled: August 19, 2011Date of Patent: September 4, 2012Assignee: Panduit Corp.Inventors: Jack E. Caveney, Shaun P. Brouwer, Vincent M. Barone, Scott R. Hartman, Andrew J. Stroede
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Patent number: 8240927Abstract: A cable attachment system is disclosed for attaching a fiber optic connector to a fiber optic cable. In particular, strength members of the fiber optic cable are crimped between a crimp sleeve and a cable anchor, and the cable anchor is anchored to the fiber optic connector. An end of the crimp sleeve is adapted to receive an end of a jacket of the fiber optic cable. An end of the cable anchor includes a nipple adapted for insertion into the end of the jacket. An end portion of the jacket is crimped between an intermediate portion of the crimp sleeve and the nipple of the cable anchor. A support portion of the crimp sleeve, positioned between the end and the intermediate portion of crimp sleeve, supports a transitioning portion of the jacket beyond the end of the cable anchor.Type: GrantFiled: July 16, 2010Date of Patent: August 14, 2012Assignee: ADC Telecommunications, Inc.Inventors: Yu Lu, Craig M. Standish
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Patent number: 8170391Abstract: A fiber optic strain relief assembly includes a housing having a first end and an oppositely disposed second end. The housing defines a bore that extends between the first end and the second end. The fiber optic strain relief assembly further includes a strain relief plate disposed in the bore of the housing. The strain relief plate includes a retention portion that is adapted to receive a strength member of a fiber optic cable. The retention portion includes a plurality of gripping tabs adapted to engage an outer surface of the strength member.Type: GrantFiled: February 11, 2010Date of Patent: May 1, 2012Assignee: ADC Telecommunications, Inc.Inventor: Ronald A. Beck
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Patent number: 8118495Abstract: An optical connector comprises a connector housing having splice means configured to abut a stripped and cleaved end surface of a plain fiber of an optical fiber cable onto an end of a fiber stub predisposed in the splice means to form an optical connection. A cable fixing assembly includes a cable fixing member and a cable holder for fixing an outer covering of the optical fiber cable introduced into said connector housing. The cable fixing member includes an opposing piece for slidably engaging with a guide section formed on the wall of an end cap of the connector housing. A step section is formed on the sliding surface of the opposing piece for sliding contact with the sliding surface of the guide section. The cable fixing member moves together with the optical fiber cable so as to reduce a distance between the splice means and the cable holder.Type: GrantFiled: April 29, 2010Date of Patent: February 21, 2012Assignee: 3M Innovative Properties CompanyInventors: Akihiko Yazaki, Tomoyasu Oike, Takaya Yamauchi
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Patent number: 8113723Abstract: One embodiment includes an integrated boot and release slide having a release slide and a boot. The release slide includes a main body, a plurality of arms, and a plurality of coupling structures. The arms extend from a first end of the main body. The coupling structures extend from a second end of the main body opposite the first end. The boot is overmolded over the coupling structures of the release slide and defines a cavity configured to slidably receive a communications cable.Type: GrantFiled: January 12, 2010Date of Patent: February 14, 2012Assignee: Finisar CorporationInventors: Chris K. Togami, Tat Ming Teo, Frank J. Flens
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Patent number: 8104975Abstract: The invention relates to an optical waveguide plug part of an optical waveguide plug connector for an optical waveguide, which has a fiber and a sheath, with a contact carrier for receiving the optical waveguide and at least one clamping part for securing the optical waveguide in the contact carrier. According to the invention, the clamping part has a first clamping section with at least one and preferably several free-standing and/or column-shaped clamping webs for clamping the sheath of the optical waveguide and a second clamping section with at least one and preferably several free-standing and/or column-shaped clamping webs for clamping the fiber of the optical waveguide.Type: GrantFiled: April 11, 2008Date of Patent: January 31, 2012Assignee: Beckoff Automation GmbHInventor: Frank Schube
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Patent number: 8100588Abstract: A small form factor pluggable (SFP) optical transceiver module and method for performing optical communications are provided. The SFP optical transceiver module has a housing to which a duplex receptacle is secured. The duplex receptacle has a C-shaped opening, the upper and lower portions of which are defined by upper and lower flexible retaining elements for receiving and retaining a duplex optical connector therein. An electrical assembly of the module is secured within the transceiver module housing. The electrical assembly comprises a PCB, the back end of which is configured as a plug end for removably plugging the PCB into a receptacle of an external communications management system.Type: GrantFiled: October 8, 2010Date of Patent: January 24, 2012Assignee: Avago Technologies Fiber IP (Singapore) Pte. Ltd.Inventors: Tom Sheau Tung Wong, Adrianus Van Haasteren, Tze Wei Lim
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Patent number: 8075198Abstract: 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 mounted about the member with the anvil's clamping surface overlapping the abutting stub and fiber splicing faces. The clamping mechanism comprises step surfaces arranged along the member's surface adjacent the groove. When the anvil is moved from the released position to the clamped position, the anvil's inner surface is moved along the step surfaces in a direction perpendicular to the longitudinal axis towards the groove, the anvil's clamping surface bringing a clamping force to bear on the abutting fiber and fiber stub.Type: GrantFiled: June 23, 2009Date of Patent: December 13, 2011Assignee: Belden CDT (Canada) Inc.Inventors: Luc Milette, Moise Levy
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Patent number: 8066436Abstract: The invention relates to a male contact for an optical fiber (1), that comprises an outer body (2) of an elastically deformable material, a cylindrical guide (6) having a front portion (5) attached in the rear portion (4) of the outer body (2) and a rear portion (7) protruding from the rear portion (4) of the outer body (2). A cable adapter (65) extends through the cylindrical guide (6). An elongated floating ferrule (18) extends through the front portion (3) of the outer body (2). The ferrule (18) is connected to a ferrule holder (13) movably mounted in said outer body (2). It comprises abutment means (19) bearing on the first shoulders (11) of the outer body (2), and a helical spring (21) provided between the front portion (5) of the cylindrical guide (6) and the abutment means (19) of the ferrule holder (13). The cable adapter (65) is mounted so as to float within the cylindrical guide (6).Type: GrantFiled: May 7, 2008Date of Patent: November 29, 2011Assignee: Interlemo Holding S.A.Inventor: Christopher Hamblin
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Patent number: 8038356Abstract: A hardened fiber optic connector includes a unitary housing that mounts a connector body. The hardened fiber optic connector terminates a fiber optic cable including a strength layer and can be connected to a hardened fiber optic adapter. The unitary housing can transfer loads between the fiber optic cable and the hardened fiber optic adapter.Type: GrantFiled: April 21, 2009Date of Patent: October 18, 2011Assignee: ADC Telecommunications, Inc.Inventors: Thomas Marcouiller, Ponharith Nhep, Steven C. Zimmel
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Patent number: 8033740Abstract: In an optical connector including a base housing, a cover housing, and a clamp fixing the cover housing to the base housing, the base housing is provided with a groove for positioning and holding an optical fiber of an optical cable, a first recessed portion continuously formed from the groove, and a second recessed portion continuously formed from the first recessed portion. The first and the second recessed portions have bottom portions different in level from each other to have a stepped portion formed therebetween. The cover housing has a first coating portion for covering the groove and a second coating portion for covering the first and the second recessed portions. The bottom portion of the second recessed portion and the second coating portion presses a coating member of the optical cable to clamp the optical cable.Type: GrantFiled: November 24, 2009Date of Patent: October 11, 2011Assignee: Japan Aviation Electronics Industry, LimitedInventors: Yuichi Koreeda, Hisaya Takahashi, Mikio Oda, Hideyuki Ono
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Patent number: 8002476Abstract: A fiber optic stub fiber connector for reversibly and nondestructively terminating an inserted field fiber having a buffer over at least a portion thereof. The connector includes a housing and a ferrule including a stub fiber disposed within and extending from a bore through the ferrule. The ferrule is generally at least partially disposed within and supported by the housing. The connector further includes a reversible actuator for reversibly and nondestructively terminating the inserted field fiber to the stub fiber. The reversible actuator includes a buffer clamp for engaging with the buffer to simultaneously provide reversible and nondestructive strain relief to the terminated field fiber.Type: GrantFiled: May 24, 2010Date of Patent: August 23, 2011Assignee: Panduit Corp.Inventors: Jack E. Caveney, Shaun P. Brouwer, Vincent M. Barone, Scott R. Hartman, Andrew J. Stroede
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Patent number: 7942587Abstract: A strain-relief assembly for a field-installable fiber optic connector is disclosed, wherein the assembly includes a ferrule holder, an intermediate sleeve, and a crimp sleeve. The ferrule holder back section holds a buffered section of a fiber optic cable, while the ferrule holder front end holds a ferrule and a splice assembly. A stub fiber is held within the ferrule and the splice assembly so as to interface with a section of field optical fiber protruding from the buffered section. The intermediate sleeve engages and generally surrounds a portion of the ferrule holder back section and thus surrounds a portion of the buffered layer. An intermediate sleeve handler may be used to handle the intermediate sleeve and attached the intermediate sleeve to the ferrule holder back section. Stress-relief strands from the fiber optic cable are flared around the outer surface of the intermediate sleeve. A crimp sleeve is placed over the intermediate sleeve to hold the ends of the stress-relief strands in place.Type: GrantFiled: August 5, 2010Date of Patent: May 17, 2011Assignee: Corning Cable Systems LLCInventors: Ray S. Barnes, Kristine A. McEvoy, David W. Meek, Scott E. Semmler
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Publication number: 20110013871Abstract: A cable attachment system is disclosed for attaching a fiber optic connector to a fiber optic cable. In particular, strength members of the fiber optic cable are crimped between a crimp sleeve and a cable anchor, and the cable anchor is anchored to the fiber optic connector. An end of the crimp sleeve is adapted to receive an end of a jacket of the fiber optic cable. An end of the cable anchor includes a nipple adapted for insertion into the end of the jacket. An end portion of the jacket is crimped between an intermediate portion of the crimp sleeve and the nipple of the cable anchor. A support portion of the crimp sleeve, positioned between the end and the intermediate portion of crimp sleeve, supports a transitioning portion of the jacket beyond the end of the cable anchor.Type: ApplicationFiled: July 16, 2010Publication date: January 20, 2011Applicant: ADC Telecommunications, Inc.Inventors: Yu Lu, Craig M. Standish
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Patent number: 7824110Abstract: The invention relates to a data transmission cable (10; 20), in particular for motor vehicles, at at least one of whose ends a plastics housing (14; 24) is arranged, said housing having mechanical dimensions in its interface region (30; 32) which conform to the FAKRA standardisation scheme. The data transmission cable (10; 20) has an optical waveguide, wherein a holding member (40) is provided in the plastics housing (14; 24), said holding member being configured for holding an optical imaging element (42) and for connecting the optical imaging element (42) to the optical waveguide.Type: GrantFiled: March 28, 2006Date of Patent: November 2, 2010Assignee: Rosenberger Hochfrequenztechnik GmbH & Co. KGInventors: Bernd Rosenberger, Clemens Wurster
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Patent number: 7806600Abstract: An improved, reversibly terminable fiber stub connector assembly is provided that can be readily and positively terminated in the field using simple termination tools. This allows repositioning or replacement of fiber optic cable field fibers if termination is not acceptable in performance. The tool may be a hand-held tool, or used in conjunction with a connector support structure to provide simplified and expeditious field termination of fiber optic cables. The cam tool can include a throughbore that enables connection of a patchcord to the stub fiber of the connector during or shortly after termination without removal of the termination tool. Accordingly, field testing of the connection can be made at the site of termination.Type: GrantFiled: February 28, 2008Date of Patent: October 5, 2010Assignee: Panduit Corp.Inventors: Samuel M. Marrs, Jerry A. Wiltjer, Shaun P. Brouwer
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Patent number: 7794156Abstract: An optical transceiver including an optical fiber ribbon, a housing permanently attached to the optical fiber ribbon, and an electrical connector extending from the housing. An electro/optical converter is disposed within the housing including an array of VCSELs and an array of photodiodes rigidly coupled to a ferrule supporting respective fibers of the fiber ribbon. A member is disposed on an outer surface of the housing adjacent the aperture that resists sharp bending of the optical fiber ribbon where the ribbon exits the housing through the aperture and blocks leakage of electromagnetic radiation from the housing.Type: GrantFiled: August 28, 2007Date of Patent: September 14, 2010Assignee: Emcore CorporationInventors: Xiaozhong X. Wang, Seng-Kum Chan, Edmond Lau, Robert Mosebar
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Publication number: 20100215323Abstract: 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 onto an end of a fiber stub predisposed in the splice means to form an optical connection; and a cable fixing assembly, that includes a cable fixing member and a cable holder, for fixing an outer covering of the optical fiber cable introduced into said connector housing. The cable fixing member, which includes an opposing piece for slidably engaging with a guide section formed on the wall of an end cap of the connector housing, is pressed in from the direction perpendicular to the axis of the optical fiber cable and is mounted on the wall of the end cap.Type: ApplicationFiled: April 29, 2010Publication date: August 26, 2010Inventors: Akihiko Yazaki, Tomoyasu Oike, Takaya Yamauchi
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Patent number: 7758257Abstract: A connectorized fiber optic cabling assembly includes a loose tube fiber optic cable and a connector assembly. The cable has a termination end and includes: an optical fiber bundle including a plurality of optical fibers; at least one strength member; and a jacket surrounding the optical fiber bundle and the at least one strength member. The connector assembly includes a rigid portion and defines a fiber passage. The connector assembly is mounted on the termination end of the cable such that the optical fiber bundle extends through at least a portion of the fiber passage. The plurality of optical fibers of the optical fiber bundle have a ribbonized configuration in the rigid portion of the connector assembly and a loose, non-ribbonized configuration outside the rigid portion. The plurality of optical fibers undergo a transition from the ribbonized configuration to the loose, non-ribbonized configuration in the rigid portion of the connector assembly.Type: GrantFiled: April 14, 2009Date of Patent: July 20, 2010Assignee: CommScope, Inc. of North CarolinaInventors: Timothy W. Anderson, Richard L. Case
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Patent number: 7756381Abstract: A connector holder (22) suitable for use in a communications signal distribution system, comprising first and second parts between which an optical connector element may be secured, and which have means for locating the holder (22) in one of a number of different positions and/or orientations on a base or other support of an optical fiber termination unit, whereby to permit a selected one of a number of different connector elements to be held between the two parts of the connector holder, and means for holding the two parts together with a connector element between them.Type: GrantFiled: October 14, 2005Date of Patent: July 13, 2010Assignee: Tyco Electronics Raychem NVInventors: Heidi Bleus, Peter Bos, Luc Devooght, Eric Schurmans
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Publication number: 20100158450Abstract: In an optical connector including a base housing, a cover housing, and a clamp fixing the cover housing to the base housing, the base housing is provided with a groove for positioning and holding an optical fiber of an optical cable, a first recessed portion continuously formed from the groove, and a second recessed portion continuously formed from the first recessed portion. The first and the second recessed portions have bottom portions different in level from each other to have a stepped portion formed therebetween. The cover housing has a first coating portion for covering the groove and a second coating portion for covering the first and the second recessed portions. The bottom portion of the second recessed portion and the second coating portion presses a coating member of the optical cable to clamp the optical cable.Type: ApplicationFiled: November 24, 2009Publication date: June 24, 2010Inventors: Yuichi Koreeda, Hisaya Takahashi, Mikio Oda, Hideyuki Ono
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Patent number: 7734138Abstract: There is provided a fiber optic connector holder adapted to selectively retain two or more fiber optic connectors that include a dust cap on the ferrule. The connector holder comprises a boot retainer to selectively retain a portion of the boot of the connector, and the connector holder comprises a dust cap retainer to selectively retain a portion of the dust cap of the connector. The connector holder is provided in a telecommunications enclosure to provide convenient parking for fiber optic connectors that are not optically connected within a distribution field or the like or that are generally not in service at the time. The connector holders may be selectively installed and/or removed from the telecommunications enclosure to assist in the installation of new fiber optic hardware, such as splitter modules.Type: GrantFiled: July 20, 2007Date of Patent: June 8, 2010Assignee: Corning Cable Systems LLCInventors: Stephen Guy Bloodworth, Cesar Geronimo Garcia, William Julius McPhil Giraud, Todd Edward Mitchell
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Patent number: 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: 7703990Abstract: 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: GrantFiled: April 23, 2009Date of Patent: April 27, 2010Assignee: Corning Cable Systems LLCInventors: Michael de Jong, Paul X. Devereaux, Chanh C. Vo
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Publication number: 20090310919Abstract: To provide an optical fiber cord with an optical connector of higher flexibility resistance, and the method for manufacturing the same are disclosed. An optical fiber cord with an optical connector, wherein said fiber cord, wherein said the optical connector comprising a stop ring having a through hole formed therein, though which said optical fiber is disposed; a crimping ring being disposed around said optical fiber to crimp said stop ring and said optical fiber cord; a ferrule being disposed at the tip end part of said optical fiber in said optical fiber cord; a spring being disposed around said optical fiber and between said ferrule and said stop ring; a plug frame being engaged with said stop ring; a grip being engaged with said plug frame; wherein said through hole of said stop ring having a stepwisely narrowing part in which a hole diameter is gradually reduced from said crimping part side to said ferrule side.Type: ApplicationFiled: June 10, 2009Publication date: December 17, 2009Applicant: Seikoh Giken Co., Ltd.Inventors: Norimasa Arai, Junji Taira, Yasunari Kawasaki
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Patent number: 7628545Abstract: A fiber optic plug assembly of a fiber optic connector assembly is provided and generally includes a fiber optic plug mounted upon an end of a fiber optic cable; a pre-molded boot placed over the fiber optic plug and the fiber optic cable; and a crimp band mated over the pre-molded boot to secure the boot to the fiber optic cable; wherein the fiber optic plug assembly is operable to mate to a fiber optic receptacle. The plug assembly eliminates the need for an overmolded boot. Further, the present invention eliminates the need to perform a heat shrink between the buffer tube and crimp body through the internal O-ring. The plug assembly meets the standards of GR-3120-CORE while at the same time providing a simpler hardware package that can be assembled with ordinary connectorization tools.Type: GrantFiled: June 18, 2007Date of Patent: December 8, 2009Assignee: Corning Cable Systems LLCInventors: Joseph Todd Cody, James Phillip Luther, Christopher Paul Lewallen, Thomas Theuerkorn
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Publication number: 20090297102Abstract: A fiber optic cable assembly includes a fiber optic cable and a connector assembly. The fiber optic cable includes an optical fiber, having a core surrounded by a cladding, and a jacket, which surrounds the optical fiber. The jacket includes a plurality of reinforcement members integrated into a matrix material of the jacket. The connector assembly includes a rear housing having a connector end that is directly engaged with an end portion of the jacket. A fiber optic cable includes an optical fiber with a core surrounded by a cladding. The fiber optic cable also includes a jacket that surrounds the optical fiber. The jacket includes about 40% to about 70% by weight of a plurality of reinforcement members integrated into a matrix material of the jacket.Type: ApplicationFiled: May 27, 2009Publication date: December 3, 2009Applicant: ADC Telecommunications, Inc.Inventor: Wayne M. Kachmar
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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: 7568845Abstract: A fiber optic stub fiber connector for reversibly and nondestructively terminating an inserted field fiber having a buffer over at least a portion thereof. The connector includes a housing and a ferrule including a stub fiber disposed within and extending from a bore through the ferrule. The ferrule is generally at least partially disposed within and supported by the housing. The connector further includes a reversible actuator for reversibly and nondestructively terminating the inserted field fiber to the stub fiber. The reversible actuator includes a buffer clamp for engaging with the buffer to simultaneously provide reversible and nondestructive strain relief to the terminated field fiber.Type: GrantFiled: February 1, 2007Date of Patent: August 4, 2009Assignee: Panduit Corp.Inventors: Jack E. Caveney, Shaun P. Brouwer, Vincent M. Barone, Scott R. Hartman, Andrew J. Stroede
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Patent number: 7513695Abstract: An optical fiber connector includes a connector housing, a ferrule and a clamping assembly. The connector hosing has a front end and a rear end. The ferrule is disposed in the connector housing and projects from the front end of the connector housing. The clamping assembly is disposed in the connector housing for mounting the ferrule, and includes a hollow housing and a cam member, wherein the cam member includes a groove adapted to clamp a terminating fiber when a cam effect between the hollow housing and the cam member is generated and further the cam effect causes the groove of the cam member to generate a clamping force.Type: GrantFiled: October 9, 2007Date of Patent: April 7, 2009Assignees: Protai Photonic Co., Ltd., Senko Advanced Components, IncInventors: I En Lin, Tomoyuki Mamiya
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Patent number: 7505666Abstract: The invention relates to a strain relief device (40) for glass fiber cables (50) having a cable jacket (56) and at least one glass fiber (57) and fibers (58) arranged between the at least one glass fiber (57) and the cable jacket (56), in which, at one end of the glass fiber cable (54), the cable jacket (56) is cut back, in order to provide strain relief at a distance from a termination or connection of the at least one glass fiber (57) from which the cable jacket (56) has been removed, said strain relief means comprising a main body (1) with a clamping body (3) and a securing body (21) with a further clamping body (22), wherein the main body (1) and the securing body (21) can be connected to one another so that at least some of the fibers (58) which are exposed when the cable jacket (56) is cut back from the at least one glass fiber (57) are secured adjacent to their exit from the cable jacket (56) between the clamping body (3) and the further clamping body (22) by a clamping means.Type: GrantFiled: August 30, 2007Date of Patent: March 17, 2009Assignee: ADC GmbHInventor: Adrian Benedetto
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Publication number: 20090052845Abstract: A fixing structure of an optical cable, comprising a tubular crimping ring (2) and a tubular crimping seat (3) disposed on the inside of the crimping ring. A projected part (3b) swelled to the outside at a radius equal to or more than a radius up to the outer periphery of the sheath (12b) of the optical cable (12) to the outer surface of a tension member wire (12c) is formed on the outer peripheral part of the crimping seat between the front end face of the crimping seat and the front end of the sheath (12b).Type: ApplicationFiled: March 23, 2005Publication date: February 26, 2009Inventor: Shigehiro Oi
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Patent number: 7484897Abstract: There is provided an optical module for coupling with a fiber optic cable through an optical connector, including a module body connectable with a plug of the optical connector by a dedicated guide pin, with a side surface of the module body being opposed to a mating surface of the connector plug at which an end face of the fiber optic cable is exposed, and an optical element mounted to the module body and having an optical axis brought into alignment with an optical axis of the fiber optic cable upon fitting of the guide pin into the module body and the connector plug.Type: GrantFiled: October 31, 2007Date of Patent: February 3, 2009Assignee: NGK Spark Plug Co., Ltd.Inventors: Masaki Ono, Toshikatsu Takada, Toshifumi Kojima, Takeshi Ohno, Susumu Wakamatsu, Toshikazu Horio, Ayako Kawamura
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Patent number: 7467896Abstract: A preconnectorized outdoor cable streamlines the deployment of optical waveguides into the last mile of an optical network. The preconnectorized outdoor cable includes a cable and at least one plug connector. The plug connector is attached to a first end of the cable, thereby connectorizing at least one optical waveguide. The cable has at least one optical waveguide, at least one tensile element, and a cable jacket. Various cable designs such as figure-eight or flat cables may be used with the plug connector. In preferred embodiments, the plug connector includes a crimp assembly having a crimp housing and a crimp band. The crimp housing has two half-shells being held together by the crimp band for securing the at least one tensile element. When fully assembled, the crimp housing fits into a shroud of the preconnectorized cable. The shroud aides in mating the preconnectorized cable with a complimentary receptacle.Type: GrantFiled: October 31, 2007Date of Patent: December 23, 2008Assignee: Corning Cable Systems LLCInventors: Stuart R. Melton, David A. Thompson, Michael J. Gimblet, Hieu V. Tran, Richard S. Wagman, Xin Liu
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Patent number: 7465106Abstract: An optical receptacle includes: a fiber stub having a ferrule and an optical fiber in a through-hole of the ferrule; a holder to which an rear end of the fiber stub is fixed; and a sleeve for holding a plug ferrule in front of the fiber stub; wherein a grip ring is provided on an outer side face in which the fiber stub and the sleeve are overlapped to each other, whereby attaining the shortened optical receptacle, and improving connection loss due to tilting of the plug ferrule, and obtaining good repeatability of the connection loss.Type: GrantFiled: June 28, 2004Date of Patent: December 16, 2008Assignee: Kyocera CorporationInventors: Hiroki Ito, Tsuyoshi Tanaka, Toshiyuki Matsumoto
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Patent number: 7435012Abstract: A ferrule connectable to a fiber optic cable having an exposed portion of a length of optical fiber extending from a protective buffer. The ferrule includes a cylindrical body preferably having a mostly hollow interior open at a proximal end thereof adapted in size to receive an end portion of the buffer. An optical fiber bore coaxial with the hollow interior extends longitudinally through a distal end portion of the body sized to slidably receive the optical fiber therethrough. The distal end portion is mechanically deformable to frictionally engage the optical fiber within the bore, the distal end face being either conically shaped or including an outwardly extending ring resulting in the distal end face being a substantially planar surface, whereby a projecting length of the optical fiber extending beyond the distal end face may be cleaved in very close proximity to the distal end face.Type: GrantFiled: November 2, 2006Date of Patent: October 14, 2008Inventor: Wojciech Beldycki
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Patent number: 7369738Abstract: An optical connector for terminating an optical fiber comprises a housing configured to mate with a receptacle and a collar body disposed in the housing. The collar body includes a fiber stub disposed in a first portion of the collar body, the fiber stub including a first optical fiber mounted in a ferrule and having a first end proximate to an end face of the ferrule and a second end. The collar body also includes a mechanical splice disposed in a second portion of the collar body, the mechanical splice configured to splice the second end of the fiber stub to a second optical fiber. The collar body also includes a buffer clamp configured within a third portion of the collar body, the buffer clamp configured to clamp at least a portion of a buffer cladding of the second fiber upon actuation. A fiber distribution unit is also provided.Type: GrantFiled: October 23, 2006Date of Patent: May 6, 2008Assignee: 3M Innovative Properties CompanyInventors: Donald K. Larson, Paul N. Winberg, Wesley A. Raider, Chansool Park, Wai-Fung Mak, James B. Carpenter, Frank J. Glatzl
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Patent number: 7357580Abstract: A receptacle assembly that receives an optical connector. The receptacle assembly includes a first piece having a central bore with a stepped diameter. The receptacle assembly also includes an annular second piece designed to receive the optical connector and that has an outside surface designed to establish an interference fit with the inside surface of the first piece central bore. Further, the assembly includes an annular third piece that has a constant inner diameter and a stepped outer diameter. The outside surface of the third piece is designed to establish an interference fit with the inside surface of the annular second piece.Type: GrantFiled: March 14, 2006Date of Patent: April 15, 2008Assignee: Finisar CorporationInventors: David J. Morgenstern, Stefan M. Pfnuer
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Patent number: 7330546Abstract: A multimedia patching box including a generally rectangular housing. The housing includes a first wall positioned opposite from a second wall. The housing also includes opposing third and fourth walls that extend between the first and second walls. A panel is mounted adjacent the front of the housing. The panel is mounted to pivot about a pivot axis between an open position and a closed position. The pivot axis is located adjacent to the third wall of the housing and extends generally along the third wall of the housing. A plurality of multimedia connectors are mounted on the panel. The housing defines at least one cable access opening defined through at least one of the first and second walls at a location adjacent the third wall. A cable management structure is connected to the back side of the panel. The cable management structure defines a cable guiding channel that extends generally along the pivot axis of the panel and generally aligns with the at least one cable access opening.Type: GrantFiled: August 24, 2004Date of Patent: February 12, 2008Assignee: ADC Telecommunications, Inc.Inventors: Bradley Scott Kessler, Jeffrey Scott Hartzler, Cory Lee Grabinger
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Patent number: 7325980Abstract: A yoke member is provided for selective insertion into a passage of a first-half housing portion of a connector interface assembly, wherein the first-half housing portion is selectively matable with a complementary second-half housing portion. The yoke member includes a base wall; a pair of side walls; and an intermediate wall disposed between the side walls. The base wall, the pair of side walls and the intermediate wall define a pair of channels. A fiber optic connector is selectively positionable within each channel of the yoke member.Type: GrantFiled: August 26, 2005Date of Patent: February 5, 2008Assignee: Tyco Electronics CorporationInventor: Paul John Pepe
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Patent number: 7306378Abstract: An electrical-optical coupling device. An apparatus according to an embodiment of the present invention includes a first trench defined in a first semiconductor substrate. A first reflector is defined at a first end of the first trench in the first semiconductor substrate. The first reflector is angled with respect to an axis of the first trench. A first optical fiber is disposed in the first trench at a second end of the first trench. An optical source is mounted to the first semiconductor substrate proximate to the first trench. The optical source is optically coupled to the first optical fiber via the first reflector.Type: GrantFiled: May 6, 2004Date of Patent: December 11, 2007Assignee: Intel CorporationInventors: Andrew C. Alduino, Mario J. Paniccia
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Patent number: 7246949Abstract: The invention relates to a device for transmitting optical signals between at least two components disposed for rotation. The invention excels itself by the provision that at least one micro-optical component is used for beam forming or beam guidance.Type: GrantFiled: June 18, 2001Date of Patent: July 24, 2007Assignee: Schleifring und Apparatebau GmbHInventors: Hans Thiele, Hans Poisel
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Patent number: 7178995Abstract: Embodiments of the invention generally provide an optical component configured to minimize reflectance. The component generally includes an optical housing having a bore formed therethrough, the bore having a central component receiving portion, and a glass block positioned in the component receiving portion in abutment with a fiber receiving bore. The component further includes a fuzzy mount secured in the central component receiving portion, the fuzzy mount being secured via a plurality of extending teeth formed on an outer surface thereof, the teeth being configured to engage an inner surface of the central component receiving portion to secure the fuzzy mount therein.Type: GrantFiled: May 5, 2003Date of Patent: February 20, 2007Assignee: Finisar CorporationInventors: Lew Aronson, Jignesh Shah, Paul Rosenberg, Ramesh Sundaram
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Patent number: 7178988Abstract: An optical connector plug adapted to be freely and readily attached to or detached from either an SC or an FC connector adapter comprising a housing that couples to the adapter and attaches the plug to the adapter, a plug frame disposed within the housing, which plug frame supports a ferrule secured to one end of an optical fiber and a flange secured around the outside of the ferrule such that the ferrule and the flange can rotate around the axial center of the ferrule, and a plug holder, disposed inside the housing, for positioning the ferrule in relation to the housing by non-incrementally rotating the ferrule to any determinable angle in relation thereto, the plug holder having a coupling part that couples to a groove formed in the flange and is capable of rotating in relation to the plug frame around the center axis of the ferrule.Type: GrantFiled: July 15, 2004Date of Patent: February 20, 2007Assignee: Seikoh Giken Co., Ltd.Inventor: Atsuhiro Terakura
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Patent number: 7178990Abstract: A fiber optic stub fiber connector for reversibly and nondestructively terminating an inserted field fiber having a buffer over at least a portion thereof. The connector includes a housing and a ferrule including a stub fiber disposed within and extending from a bore through the ferrule. The ferrule is generally at least partially disposed within and supported by the housing. The connector further includes a reversible actuator for reversibly and nondestructively terminating the inserted field fiber to the stub fiber. The reversible actuator includes a buffer clamp for engaging with the buffer to simultaneously provide reversible and nondestructive strain relief to the terminated field fiber.Type: GrantFiled: January 10, 2006Date of Patent: February 20, 2007Assignee: Panduit Corp.Inventors: Jack E. Caveney, Shaun P. Brouwer, Vince M. Barone, Scott R. Hartman, Andrew J. Stroede