Fiber/ferrule Further Processed (grinding, Polishing, Etc.) Patents (Class 385/85)
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Patent number: 12220733Abstract: A cleaning device (100) for cleaning fiber optic end faces comprises a dispensing nozzle (104) configured to discharge a jet column (118) generated by the Coanda effect with intermittent injection of a cleaning solvent into the jet column (118). The method comprises impinging the jet column (118) onto a fiber optic end face (120) while maintaining a stand-off distance from the end face being cleaned.Type: GrantFiled: April 5, 2022Date of Patent: February 11, 2025Assignee: ZYNON TECHNOLOGIES, LLCInventors: Emily J. Peck, Samuel Lindeyer, John T. Doty, Richard M. Hoffman, Jay S. Tourigny
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Patent number: 12117652Abstract: A fiber optic connector has at least two optical fibers therein have end faces that are positioned such that they are directed in different directions. The end faces can be oriented relative to a key that is provided on a fiber optic connector housing that has a central opening in the main body of the fiber optic connector.Type: GrantFiled: March 11, 2022Date of Patent: October 15, 2024Assignee: US Conec, Ltd.Inventor: Jeff Hendrick
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Patent number: 12070835Abstract: Provided is an optical fiber ferrule polishing jig capable of fixing an optical fiber ferrule and releasing the optical fiber ferrule. An optical fiber ferrule polishing jig 10A has; a base 12a having insertion holes 20 into which optical fiber ferrules 51 can be detachably inserted; pivoting rods 13 which are adjacent to the insertion holes 20 of the base 12a and rotatable around lower end portions 36; fixing pieces 14a installed in installation recesses 19a formed in the base 12a to fix the optical fiber ferrules 51 with respect to the insertion holes 20 by being moved as the rods are pivoted; and a plurality of coil springs 15a installed in the installation recesses 19a to bias the fixing pieces 14a so as to release fixing of the optical fiber ferrules 51 with respect to the insertion holes 20.Type: GrantFiled: June 17, 2022Date of Patent: August 27, 2024Assignee: SEIKOH GIKEN Co., Ltd.Inventor: Yuji Shibutani
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Patent number: 11988875Abstract: A fiber optic connector has at least two optical fibers therein have end faces that are positioned such that they are directed in different directions. The end faces can be oriented relative to a key that is provided on a fiber optic connector housing that has a central opening in the main body of the fiber optic connector.Type: GrantFiled: December 15, 2023Date of Patent: May 21, 2024Assignee: US Conec, Ltd.Inventor: Jeff Hendrick
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Patent number: 11886016Abstract: A fiber optic connector has at least two optical fibers therein have end faces that are positioned such that they are directed in different directions. The end faces can be oriented relative to a key that is provided on a fiber optic connector housing that has a central opening in the main body of the fiber optic connector.Type: GrantFiled: March 7, 2023Date of Patent: January 30, 2024Assignee: US Conec, Ltd.Inventor: Jeff Hendrick
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Patent number: 11806831Abstract: A holder to polish a fiber optic connector having at least two ferrule assembly. Each ferrule assembly having a ferrule with an optical fiber therein. And a tool to rotate a ferrule assembly within the connector housing to allow opposing ferrules, with an APC surface, to transfer a light signal with minimal surface reflection, or data loss.Type: GrantFiled: November 19, 2019Date of Patent: November 7, 2023Assignee: Senko Advanced Components, Inc.Inventor: Kim Man Wong
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Patent number: 10310209Abstract: A tight-buffered optical fiber cable includes an improved method of accessing the coated optical fiber. The cable can include an optical fiber having a glass core and a cladding layer. One or more coating layers can be applied about the cladding layer. A buffer jacket material can be applied onto an outer surface of the outer coating layer as a buffer jacket outer layer. The buffer jacket outer layer can have distinctive features including a low tear strength, low elastic modulus, high elongation percentage, and low peeling force. This can allow a user of the optical fiber cable to separate at least a portion of the coated optical fiber from the buffer jacket outer layer by grasping a free end of the coated optical fiber and pulling it through the outer wall of the buffer jacket outer layer, thereby tearing through the outer wall of the buffer jacket outer layer.Type: GrantFiled: March 31, 2016Date of Patent: June 4, 2019Assignee: OFS FITEL, LLCInventors: Heng Ly, Peter A Weimann
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Patent number: 9022671Abstract: A fiber optic connector fiber stub remover and method for automated fiber stub removal. The device has a top plate with a platen opening, and a platen with a well that carries a polishing film over the well. An air pocket is formed between the polishing film and the well. The platen is positioned with a top surface of the polishing film accessible via the platen opening. A fixture holds connector ends of fiber optic cables with fiber stubs extending therefrom, and a weight biases the fiber stubs into contact with the polishing film. A motor is controlled by a motor control unit to control a ramp up time and final speed of movement of the platen over a timespan. Each connector ends moves independently relative to the polishing film. The air pocket provides shock absorption of the polishing film so that an ideal pressure is exerted on each fiber stub during stub removal.Type: GrantFiled: March 14, 2013Date of Patent: May 5, 2015Inventor: Michael Buzzetti
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Patent number: 9016955Abstract: An optical connector for operation within a temperature range, comprising: (a) a ferrule comprising a first material having a coefficient of thermal expansion COE-1, and a diameter no greater than a diameter d1 below a transition temperature Ts within the temperature range and no less than a diameter d2 above Ts; (b) a spring disposed behind and in contact with the ferrule to apply a forward force to the ferrule; and (c) a housing comprising a second material having a coefficient of thermal expansion COE-2 and defining a bore hole having a diameter greater than d2, and an interface having a restricted bore hole having a diameter no greater than a diameter d3 below Ts, and no less than a diameter d4 above Ts, wherein connector configuration is COE-2>COE-1 with d>d3 and d2<d4 or COE-2<COE-1 with d1<d3 and d2>d4.Type: GrantFiled: March 15, 2013Date of Patent: April 28, 2015Assignee: Tyco Electronics CorporationInventors: Soren Grinderslev, Michael Aaron Kadar-Kallen, Daniel E. Wertman
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Patent number: 8989546Abstract: A polishing jig 10 includes a holding member 11 for holding a ferrule 31 when polishing a front end face of the ferrule 31. The holding member 11 is formed by a holding member body 12 having a through hole 121 through which the ferrule 31 is inserted, and protrusions 16 and 17 which are provided on an upper surface of the holding member body 12, for supporting a flange 33 of the ferrule 31 when the ferrule 31 is inserted into the through hole 121.Type: GrantFiled: May 12, 2010Date of Patent: March 24, 2015Assignee: Japan Aviation Electronics Industry, LimitedInventor: Yuichi Koreeda
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Patent number: 8985866Abstract: Simultaneous thermal forming of a ferrule and optical fiber as part of a ferrule assembly to thermally form an optical surface in the ferrule assembly. Related fiber optic components, connectors, assemblies, and methods are disclosed. In certain embodiments, the ferrule assembly is comprised of a ferrule and an optical fiber having an end portion extending from an end face of the ferrule. The ferrule may be made from a material or material composition having the same or similar thermal energy absorption characteristics as the optical fiber disposed in the ferrule. Thus, when the end face of the ferrule and an end portion of an optical fiber are simultaneously exposed to a wavelength(s) of a laser beam emitted by a laser, at least a portion of the end face of the ferrule and end portion of the optical fiber are both thermally formed together to form an optical surface.Type: GrantFiled: February 18, 2013Date of Patent: March 24, 2015Assignee: Corning Cable Systems LLCInventors: Jeffrey Dean Danley, Robert Bruce Elkins, II, Daniel Warren Hawtof
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Publication number: 20150036981Abstract: A polishing jig includes a holding member for holding a ferrule when polishing a front end face of the ferrule. The holding member is formed by a holding member body having a through hole through which the ferrule is inserted, and protrusions which are provided on an upper surface of the holding member body, for supporting a flange of the ferrule when the ferrule is inserted into the through hole.Type: ApplicationFiled: October 16, 2014Publication date: February 5, 2015Applicant: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITEDInventor: Yuichi KOREEDA
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Patent number: 8944699Abstract: An exemplary optical fiber connector includes a first surface and a second surface at opposite sides thereof, and a third surface connected between the first surface and the second surface. Two projections are formed on the first surface, and extend a same distance along a direction perpendicular to the first surface. The optical fiber connector defines a fixing recess extending from the second surface towards the first surface and being open at the third surface. The fixing recess has a first inner surface and a second inner surface. The first inner surface is parallel to the third surface. The second inner surface is parallel to the first surface. The first inner surface defines a number of receiving grooves. The optical fiber connector defines a number of receiving holes extending from the second inner surface to the first surface. The receiving holes are aligned and communicated with the receiving grooves, respectively.Type: GrantFiled: January 8, 2013Date of Patent: February 3, 2015Assignee: Hon Hai Precision Industry Co., Ltd.Inventor: I-Thun Lin
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Patent number: 8915654Abstract: A connector comprising a base formed using a base material with an obverse face, a reverse face, and at least one wall member that defines the perimeter of the base; a multiplicity of inserts each having a first end and a second end, which extend through the base; wherein the inserts are of a different material than the base material, and the inserts are generally parallel to one another, wherein a single hole extends longitudinally through each of at least a subset of the inserts, and wherein each hole is configured to receive a single optical fiber; and a method of making the connector.Type: GrantFiled: October 16, 2012Date of Patent: December 23, 2014Assignee: Verizon Patent and Licensing Inc.Inventor: David Zhi Chen
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Patent number: 8888382Abstract: An optical-electrical connector assembly comprises a housing, a printed circuit board received in the housing and including a number of converting elements, a lens member, a ferrule aligned with the lens member and having a resisting portion, an integrated securing member, a coiled spring received in the securing member, and an optical cable having a number of optical fibers. The ferrule has a first engaging portion and a second engaging portion engaged with the housing. The coiled spring is compressed between the resisting portion and the first engaging portion.Type: GrantFiled: January 14, 2013Date of Patent: November 18, 2014Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Jin-Hua Meng, Ya-Dong Zhu, Yun-Cheng Hou, John Chow
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Apparatus for plugging multiple connectors with spring loaded sleeves into an adapter simultaneously
Patent number: 8845206Abstract: An apparatus is provided and includes a housing, a block formed to define an array of holes corresponding to an array of plugs into which connectors with spring loaded sleeves are pluggable such that the block engages with a respective sleeve of each connector, the block being supportively disposed within the housing to be movable with respect to the housing between first and second block positions at which the sleeves are extended and retracted, respectively and a cam lever supported on the housing and coupled to the block, which selectively occupies first and second lever positions at which the cam lever causes the block to assume the first and second block positions, respectively.Type: GrantFiled: March 29, 2011Date of Patent: September 30, 2014Assignee: International Business Machines CorporationInventors: Kenneth Y. Chan, Dennis Denizard, Michael J. Fisher, Gilles G. Labbe, James E. Tersigni -
Patent number: 8771042Abstract: A polishing apparatus is provided for polishing an optical fiber connector. The optical fiber connector includes a connector housing and a ferrule. The polishing apparatus includes a mount to receive and hold the optical connector and a polisher housing supported by a base. The polisher housing houses a polisher that comprises a platen that supports a polishing media, the platen being coupled to a planetary gear system. The mount is disposed on a cover that encloses the polisher housing when the cover is placed in a closed position. A rotatable knob is exposed at an opening of the base, the rotatable knob being engaged with the planetary gear system to move the planetary gear system. The polishing media is disposed proximate to a fiber tip extending from an end face of the ferrule of the optical connector disposed in the mount when the cover is placed in the closed position.Type: GrantFiled: January 25, 2010Date of Patent: July 8, 2014Assignee: 3M Innovative Properties CompanyInventors: Ronald P. Pepin, Richard L. Simmons
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Patent number: 8764314Abstract: A pre-terminated optical fiber assembly with a ferrule having front and rear opposed faces and at least one fiber bore defined longitudinally therethrough includes a glass optical fiber is disposed within the at least one fiber bore with the fiber fused to the ferrule at a location at least 1 mm deep inside the bore. A method for fusing is also disclosed. The ferrule 14 is desirably composed of an inorganic composite material, the composite comprising a material gradient from at least 75% by volume of a first inorganic material to at least 75% by volume of second inorganic material in the radially inward direction, where the first inorganic material has a fracture toughness of at least 1 MPa·m1/2, and the second inorganic material has a softening point of no greater than 1000° C., desirably no greater than 900° C.Type: GrantFiled: March 7, 2013Date of Patent: July 1, 2014Assignee: Corning Cable Systems LLCInventors: Jeffrey Dean Danley, Robert Bruce Elkins, II
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Patent number: 8740474Abstract: A method for processing ferrules for fiber optic connectors is disclosed herein. The method involves ablating a distal end face of the ferrule with the plurality of laser beam pulses to remove a distal layer of the ferrule without removing an optical fiber secured within the ferrule. By removing the distal layer from the ferrule, the optical fiber is caused to protrude distally outwardly from the distal end of the ferrule by a desired amount.Type: GrantFiled: April 12, 2012Date of Patent: June 3, 2014Assignee: ADC Telecommunications, Inc.Inventor: Yu Lu
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Patent number: 8678671Abstract: A tool for cleaving a plastic optical fiber has a body with a cleaving aperture at the insertion face of the body and through which the termination end section of the plastic optical fiber is inserted and in which an operative section is positioned upon inserting the plastic optical fiber into the tool. A cutting blade has a cutting edge and is moveable along a cutting path between a first operative position at which the cutting edge is spaced from the cleaving axis and a second operative position at which the cutting edge intersects the cleaving axis to cleave the plastic optical fiber to create an optical finish on an end surface of the operative section of the plastic optical fiber. A clearance region is located at the termination face of the body and generally aligned with the cleaving aperture and in which the termination end section may deflect upon engagement of the cutting blade with the plastic optical fiber.Type: GrantFiled: February 23, 2009Date of Patent: March 25, 2014Assignee: Molex IncorporatedInventors: Paul M. Mulligan, Carl Lindenmeyer, Stephen Migo, Thomas R. Marrapode
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Patent number: 8672561Abstract: An optical cable connector is disclosed herein. The optical cable connector includes a housing; an aperture on a side of the housing for receiving unsplit duplex optical cable; a sharp edge, disposed within the housing and positioned to split a portion of the optical cable into two optical fibers when the cable is inserted into the aperture, the fibers for carrying optical signals; and electro-optical transceivers, disposed within the housing and aligned with the two optical fibers to receive the optical signals, the transceivers configured to convert the optical signals into electrical signals. Integrating the sharp edge within the connector precludes a user from having to manually split optical cable prior to inserting the cable into the connector, thereby making the connector relatively easy to use and reducing the likelihood the user will be injured.Type: GrantFiled: August 26, 2009Date of Patent: March 18, 2014Inventors: Mohammad Tootoonian, Bradley George Kelly, Edward Matthew Rooyakkers
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Publication number: 20140050447Abstract: A dust cap assembly for sealing an end face of a fiber optic ferrule includes a sleeve and a sealant. The sleeve is configured to be placed onto the fiber optic ferrule and frictionally engage a medial portion of the fiber optic ferrule. The sealant, which is at least partially disposed on the sleeve, comprises a curable liquid configured to create a removable seal that directly contacts the end face on the fiber optic ferrule when the sleeve is placed onto the fiber optic ferrule. The sealant is also configured adhere to contaminants present on the end face such that upon removal of the sleeve and sealant from the fiber optic ferule remedial cleaning of the end face occurs.Type: ApplicationFiled: October 25, 2013Publication date: February 20, 2014Applicant: Corning Cable Systems LLCInventors: Ziwei Liu, Charles Alton Yow, JR.
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Publication number: 20130343710Abstract: Simultaneous thermal forming of a ferrule and optical fiber as part of a ferrule assembly to thermally form an optical surface in the ferrule assembly. Related fiber optic components, connectors, assemblies, and methods are disclosed. In certain embodiments, the ferrule assembly is comprised of a ferrule and an optical fiber having an end portion extending from an end face of the ferrule. The ferrule may be made from a material or material composition having the same or similar thermal energy absorption characteristics as the optical fiber disposed in the ferrule. Thus, when the end face of the ferrule and an end portion of an optical fiber are simultaneously exposed to a wavelength(s) of a laser beam emitted by a laser, at least a portion of the end face of the ferrule and end portion of the optical fiber are both thermally formed together to form an optical surface.Type: ApplicationFiled: February 18, 2013Publication date: December 26, 2013Inventors: Jeffrey Dean Danley, Robert Bruce Elkins, II, Daniel Warren Hawtof
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Patent number: 8579518Abstract: According to one embodiment, an optical receptacle for receiving a corresponding optical connector may include a receptacle housing, a receptacle optical path and a positionable shutter assembly. The receptacle housing includes a connector port disposed at an end of the receptacle housing and a receptacle pathway. The connector port may receive the corresponding optical connector. The receptacle optical path may terminate within the receptacle housing and includes an optical waveguide. The positionable shutter assembly includes a cleaning member positioned on a support surface of the positionable shutter assembly. The positionable shutter assembly may be biased to the closed position such that the cleaning member contacts or is proximate to the optical waveguide and the positionable shutter assembly is disposed in the receptacle pathway. The positionable shutter assembly may be biased to the open position such that the cleaning member is not positioned over the receptacle optical path.Type: GrantFiled: November 22, 2010Date of Patent: November 12, 2013Assignee: Corning IncorporatedInventors: Micah Colen Isenhour, Dennis Michael Knecht, James Phillip Luther
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Patent number: 8539796Abstract: An optical connector assembling method capable of preventing workability from worsening is provided. First, when assembling the optical connector, an optical cord (2) is passed through a rear housing (8), an outer jacket holding member (9), a securing member (10), and a boot (11), and an outer jacket (4) is removed from a leading end portion of the optical cord (2), so as to expose a coated optical fiber (3) and a tension-resistant fiber (5). A handled dust cap (16A) is mounted to a ferrule member (6) holding a built-in fiber. Then, a fusion splicer fusion-splices the built-in fiber and the coated optical fiber (3) to each other. Thereafter, while the ferrule member (6) keeps the handled dust cap (16A) mounted thereto, a plug housing (7) is assembled to the rear housing (8). Then, the outer jacket holding member (9) and securing member (10) secure the outer jacket (4) and tension-resistant fiber (5) to the rear housing (8), and the boot (11) is mounted to the securing member (10).Type: GrantFiled: October 27, 2010Date of Patent: September 24, 2013Assignees: SEI Optifrontier Co., Ltd., Sumitomo Electric Industries, Ltd.Inventors: Yoshikyo Tamekuni, Yuji Suzuki, Yukihiro Yokomachi
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Patent number: 8523459Abstract: Disclosed are multifiber ferrule assemblies and methods for manufacturing the same. In one embodiment, a finished multifiber ferrule can be provided with a front end having a first front surface that extends beyond a second front surface, thereby inhibiting interaction with a laser beam during processing. A plurality of optical fibers can be fixed within respective optical fiber bores and extend from respective optical fiber bore openings to a position beyond the first front surface. The plurality of optical fibers can be processed by cutting and polishing with a laser beam for providing each optical fiber with a final polished end surface located beyond the first front surface. In further embodiments, an offset structure is positioned with respect to a finished multifiber ferrule after cutting and polishing the optical fibers.Type: GrantFiled: December 22, 2011Date of Patent: September 3, 2013Assignee: Corning Cable Systems LLCInventors: Jeffrey D. Danley, Christopher P. Lewallen, James P. Luther, Joel C. Rosson, David A. Thompson
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Patent number: 8469605Abstract: An optical connector having a front and back orientation and suitable for operating with a temperature range, the connector comprising: (a) a ferrule comprising a first material having a first coefficient of thermal expansion (COE), and having no greater than a first diameter below a transition temperature with the temperature range, and no less than a second diameter above the transition temperature; (b) a spring disposed behind the ferrule and in contact with the ferrule to apply a forward urging force to the ferrule; and (c) a housing comprising a second material having a second COE, the housing defining a bore hole having a diameter greater than the second diameter, and an interface portion having a restricted bore hole having no greater than a third diameter below the transition temperature, and no less than a fourth diameter above the transition temperature.Type: GrantFiled: January 24, 2012Date of Patent: June 25, 2013Assignee: Tyco Electronics CorporationInventors: Daniel E. Wertman, Soren Grinderslev, Michael Aaron Kadar-Kallen
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Patent number: 8444326Abstract: An optical fiber coupling device, comprises a coupling assembly that includes a first ferrule and a second ferrule and an optical fiber having a first end mounted in the first ferrule and a second end mounted in the second ferrule. The first ferrule is disposed in an axial bore of a first barrel and the second ferrule is disposed in an axial bore of a second barrel. The coupling assembly is disposable in a coupling housing configured to receive at least two optical fiber connectors.Type: GrantFiled: May 15, 2009Date of Patent: May 21, 2013Assignee: 3M Innovative Properties CompanyInventor: James R. Bylander
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Patent number: 8408814Abstract: An optical connector of the present invention includes a ferrule to which an internal optical fiber is embedded and an end face grinding is performed; and a connection mechanism which extends to an opposite side of a connection end face of the ferrule, wherein the optical connector butt connects the internal optical fiber and an insert optical fiber which is inserted from outside within a positioning groove provided at the connection mechanism; and a back end side of an end face of the internal optical fiber which butts to the insert optical fiber is made a beveled end face by cutting process.Type: GrantFiled: August 10, 2011Date of Patent: April 2, 2013Assignee: Fujikura Ltd.Inventors: Koji Sumida, Kazuhiro Takizawa, Daigo Saito
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Patent number: 8393803Abstract: A connector for an optical fiber includes a first coupling element threadedly secured to a second coupling element such that the first coupling element and second coupling element define a lumen. A collet configured to receive a portion of the optical fiber is disposed in the lumen such that the collet holds the optical fiber in place with respect to the first and second coupling elements. An adjustable ferrule is threadedly secured to the proximal end of the second coupling element and is rotatable with respect to the second coupling element to translate a proximal end of the adjustable ferrule longitudinally with respect to a proximal end of the optical fiber. A connector element is secured to the proximal end of the second coupling element with the adjustable ferrule and is rotatable with respect to the second coupling element.Type: GrantFiled: November 2, 2010Date of Patent: March 12, 2013Assignee: Hogue Surgical, LLCInventor: Roger S. Hogue
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Publication number: 20120263422Abstract: A method for processing ferrules for fiber optic connectors is disclosed herein. The method involves ablating a distal end face of the ferrule with the plurality of laser beam pulses to remove a distal layer of the ferrule without removing an optical fiber secured within the ferrule. By removing the distal layer from the ferrule, the optical fiber is caused to protrude distally outwardly from the distal end of the ferrule by a desired amount.Type: ApplicationFiled: April 12, 2012Publication date: October 18, 2012Applicant: ADC Telecommunications, Inc.Inventor: Yu Lu
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Patent number: 8267599Abstract: Optical subassembly grounding in an optoelectronic module. In one example embodiment, a conductive OSA grounding gasket assembly includes a top gasket and a bottom gasket. The top gasket includes a top shell surface and a top OSA surface. The top shell surface is configured to be in direct physical contact with a conductive top shell of an optoelectronic module. The top OSA surface is configured to make direct physical contact with a conductive housing of an OSA. The bottom gasket includes a bottom OSA surface and a bottom shell surface. The bottom OSA surface is configured to be in direct physical contact with the conductive housing of the OSA. The bottom shell surface is configured to make direct physical contact with a conductive bottom shell of the optoelectronic module.Type: GrantFiled: October 7, 2009Date of Patent: September 18, 2012Assignee: Finisar CorporationInventors: Hung V. Nguyen, Yongshan Zhang, Joshua Moore
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Patent number: 8231283Abstract: A waveguide connector includes a ferrule with a number of waveguides inserted thereinto. The ferrule includes a front mating surface, a rear surface, front and rear passageways extending through the front and the rear mating surfaces, respectively. The front and the rear passageways are in communication with each other while the front passageway is thinner than the rear passageway. The waveguide each includes a number of cores and a cladding layer enclosing the cores. The front part of the cladding layer is of rectangular shape and includes four peripheral surfaces which are so limited by four inner surfaces of the front passageway, respectively, so as to precisely position the waveguides.Type: GrantFiled: December 6, 2010Date of Patent: July 31, 2012Assignee: Hon Hai Precision Ind. Co., Ltd.Inventor: James M. Sabo
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Patent number: 8221006Abstract: A fiber optic cable assembly includes a fiber optic cable with one or more optical fibers attached to a housing. The housing includes a connector housing for a connector, a furcation housing for a furcation, and a splice housing for a mid-span cable splice. The furcation housing and the splice housing include a crimp body. The crimp body has a compression area and at least one hoop about the compression area defining a crimp zone. A crimp band is arranged for engaging the crimp zone and including an indentation defining a compression surface and a rib defining a rib interior. The crimp band and the crimp body cooperate to grip the strength element and resist cable pull off forces. A method of making the fiber optic cable assembly is also disclosed.Type: GrantFiled: August 23, 2010Date of Patent: July 17, 2012Assignee: Corning Cable Systems LLCInventor: Thomas Theuerkorn
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Patent number: 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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Publication number: 20120082419Abstract: A polishing jig 10 includes a holding member 11 for holding a ferrule 31 when polishing a front end face of the ferrule 31. The holding member 11 is formed by a holding member body 12 having a through hole 121 through which the ferrule 31 is inserted, and protrusions 16 and 17 which are provided on an upper surface of the holding member body 12, for supporting a flange 33 of the ferrule 31 when the ferrule 31 is inserted into the through hole 121.Type: ApplicationFiled: May 12, 2010Publication date: April 5, 2012Inventor: Yuichi Koreeda
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Patent number: 8123417Abstract: An optical connector having a front and back orientation and suitable for operating with a temperature range, the connector comprising: (a) a ferrule comprising a first material having a first coefficient of thermal expansion (COE), and having no greater than a first diameter below a transition temperature with the temperature range, and no less than a second diameter above the transition temperature, the ferrule also comprising an endface, and containing at least one fiber having a fiber end presented at the endface; (b) a spring disposed behind the ferrule and in contact with the ferrule to apply a forward urging force to the ferrule; and (c) a housing comprising a second material having a second COE, the housing defining a bore hole having a diameter greater than the second diameter, and an interface portion having a restricted bore hole having no greater than a third diameter below the transition temperature, and no less than a fourth diameter above the transition temperature; wherein the connector is conType: GrantFiled: June 1, 2009Date of Patent: February 28, 2012Assignee: Tyco Electronics CorporationInventors: Daniel E. Wertman, Soren Grinderslev
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Patent number: 8109679Abstract: Disclosed are multifiber ferrule assemblies and methods for manufacturing the same. In one embodiment, a finished multifiber ferrule can be provided with a front end having a first front surface that extends beyond a second front surface, thereby inhibiting interaction with a laser beam during processing. A plurality of optical fibers can be fixed within respective optical fiber bores and extend from respective optical fiber bore openings to a position beyond the first front surface. The plurality of optical fibers can be processed by cutting and polishing with a laser beam for providing each optical fiber with a final polished end surface located beyond the first front surface. In further embodiments, an offset structure is positioned with respect to a finished multifiber ferrule after cutting and polishing the optical fibers.Type: GrantFiled: December 19, 2008Date of Patent: February 7, 2012Assignee: Corning Cable Systems LLCInventors: Jeffrey D. Danley, Christopher P. Lewallen, James P. Luther, Joel C. Rosson, David A. Thompson
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Patent number: 7942587Abstract: A strain-relief assembly for a field-installable fiber optic connector is disclosed, wherein the assembly includes a ferrule holder, an intermediate sleeve, and a crimp sleeve. The ferrule holder back section holds a buffered section of a fiber optic cable, while the ferrule holder front end holds a ferrule and a splice assembly. A stub fiber is held within the ferrule and the splice assembly so as to interface with a section of field optical fiber protruding from the buffered section. The intermediate sleeve engages and generally surrounds a portion of the ferrule holder back section and thus surrounds a portion of the buffered layer. An intermediate sleeve handler may be used to handle the intermediate sleeve and attached the intermediate sleeve to the ferrule holder back section. Stress-relief strands from the fiber optic cable are flared around the outer surface of the intermediate sleeve. A crimp sleeve is placed over the intermediate sleeve to hold the ends of the stress-relief strands in place.Type: GrantFiled: August 5, 2010Date of Patent: May 17, 2011Assignee: Corning Cable Systems LLCInventors: Ray S. Barnes, Kristine A. McEvoy, David W. Meek, Scott E. Semmler
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Patent number: 7942589Abstract: A plug-type optical connector is provided with a ferrule and an aligning sleeve member. The aligning sleeve member receives a portion of the ferrule including an abutting end face inside a bore to prevent staining and damage and uses a movable shutter to prevent light emitted through the ferrule from leaking to the outside. The socket type optical connector is provided with a ferrule and a holding section. The optical connector is not provided with an aligning sleeve member and further can hold a coated optical fiber by a holding section behind the ferrule by a radius of curvature of at least a prescribed minimum radius of curvature. Optical loss in the coated optical fiber can be reduced while effectively reducing the external dimensions in the direction of extension of the ferrule at the time of use. An optical fiber connecting device that includes a combination of a pair of optical connectors is also provided to be suitably applied to an optical transmission line laid indoors.Type: GrantFiled: February 18, 2008Date of Patent: May 17, 2011Assignee: 3M Innovative Properties CompanyInventors: Akihiko Yazaki, Takaya Yamauchi, James R. Bylander, Eric M. Morgan, Wesley A. Raider, Kirk L. Taylor
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Publication number: 20110110630Abstract: An optical transmission medium, a ferrule, an optical terminal connector, an optical structure, and an optical equipment have both optical terminal functions and the optical connector functions without the need to change component depending on application. The optical transmission medium has at least one end thereof that is an APC cut surface and a refractive index matching member is provided on the APC cut surface. The ferrule is characterized in that at least one end thereof is an APC polished surface and a refractive index matching member is provided on the APC polished surface. The optical terminal connector includes a ferrule which holds an optical transmission medium and an adapter into which the ferrule is inserted from one end thereof, at least one end of the optical transmission medium is an APC cut surface and a refractive index matching member is provided on the APC cut surface.Type: ApplicationFiled: June 8, 2009Publication date: May 12, 2011Applicant: Tomoegawa Co., Ltd.Inventor: Nobuhiro Hashimoto
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Patent number: 7929819Abstract: A field termination kit includes an optical fiber preparation device for preparing an end of an optical fiber, an optical inspection device for inspecting the end of the optical fiber, and a termination assembly for terminating the end of the optical fiber. A method of using a field termination kit includes rotating an end of a first optical fiber about a center of an abrasive portion of an optical fiber preparation tool. The end is pressed against an adhesive portion of the optical fiber preparation tool to clean contaminants from the end. The end is inserted into an inner passage of an optical fiber inspection device for viewing. The end is inserted into a termination assembly. The end is terminated to an end of a second optical fiber in a termination region of the termination assembly.Type: GrantFiled: March 9, 2010Date of Patent: April 19, 2011Assignee: ADC Telecommunications, Inc.Inventor: Wayne M. Kachmar
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Patent number: 7874739Abstract: In one embodiment, a fiber assembly is provided. The fiber assembly has a first fiber having at least one core. The core has a length, a first end, and a second end, and light may be transmitted along the core. The second end has an obtusely angled end surface. The assembly also has a second fiber having at least one core having a first end. Light may be transmitted along the core. The second end of the first fiber is optically coupled to the first end of the second fiber such that light emitted from the first fiber may be transmitted to the second fiber.Type: GrantFiled: January 22, 2008Date of Patent: January 25, 2011Assignee: Hewlett-Packard Development Company, L.P.Inventors: David Martin Fenwick, Richard John Luebs, Terrel L. Morris, Duane A. Wegher, Jeffrey D. Yetter
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Patent number: 7874740Abstract: A housing (10) for an optical waveguide ferrule (12), includes first distance elements (22, 28) being determinative for a distance between two adjacently arranged housings (10) and being formed by formations of the housing (10), the first distance elements (22, 28) being located opposite each other with respect to one of a center axis (M) of the housing (10) and the optical waveguide ferrule (12) arranged in the housing (10), and the first distance elements (22, 28) being formed by a pair of first distance elements of a first type (22) and a second type (28) differing from the first type (22).Type: GrantFiled: May 14, 2009Date of Patent: January 25, 2011Assignee: Harting Electronics GmbH & Co. KGInventor: Rita Hoffmann
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Patent number: 7841778Abstract: An optical connector 10 includes a ferrule 20 to secure the set of multiple optical fibers 100, a plug member 21 to hold the ferrule 20, and a spacer 22 having a pin 23 for guiding, the spacer being integrally fixed to the ferrule 20 by means of inserting the pin 23 into the ferrule 20 to be secured together with the ferrule within the plug member 21, wherein the ferrule 20 has at least one first positioning portion for example a recessed portion 51, 52, and the spacer 22 has at least one second positioning portion for example a projection 61, 62 which is fitted to a corresponding first positioning portion to position the ferrule to the spacer.Type: GrantFiled: December 19, 2008Date of Patent: November 30, 2010Assignee: The Furukawa Electric Co., Ltd.Inventors: Naoya Nishimura, Hideki Miyazaki
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Patent number: 7837801Abstract: An apparatus and method for cleaning an optical fiber supported by a fiber optic connector. The cleaning apparatus may include a housing, a cleaning tip supported by the housing and a cleaning wipe advanceable along at least a portion of the cleaning tip to clean an optical fiber when the cleaning wipe engages the optical fiber. The apparatus may include one or more automated features which may enhance the effectiveness of the apparatus. The apparatus may include a fluid dispenser to wet at least a portion of the cleaning wipe with a cleaning fluid. The apparatus may be configured to automatically control the force exerted by the cleaning tip against the optical fiber and/or to automatically control tension in the cleaning wipe. Aspects of the invention are directed to a method of cleaning an end face of an optical fiber by advancing a wet portion of a cleaning wipe across the end face, and thereafter advancing a dry portion of the cleaning wipe across the end face.Type: GrantFiled: June 6, 2006Date of Patent: November 23, 2010Assignee: kSARIA CorporationInventors: Anthony J. Christopher, Mark S. Aude
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Patent number: 7824110Abstract: The invention relates to a data transmission cable (10; 20), in particular for motor vehicles, at at least one of whose ends a plastics housing (14; 24) is arranged, said housing having mechanical dimensions in its interface region (30; 32) which conform to the FAKRA standardisation scheme. The data transmission cable (10; 20) has an optical waveguide, wherein a holding member (40) is provided in the plastics housing (14; 24), said holding member being configured for holding an optical imaging element (42) and for connecting the optical imaging element (42) to the optical waveguide.Type: GrantFiled: March 28, 2006Date of Patent: November 2, 2010Assignee: Rosenberger Hochfrequenztechnik GmbH & Co. KGInventors: Bernd Rosenberger, Clemens Wurster
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Patent number: 7824113Abstract: A small form factor pluggable (SFP) optical transceiver module and method for performing optical communications are provided. The SFP optical transceiver module has a housing to which a duplex receptacle is secured. The duplex receptacle has a C-shaped opening, the upper and lower portions of which are defined by upper and lower flexible retaining elements for receiving and retaining a duplex optical connector therein. An electrical assembly of the module is secured within the transceiver module housing. The electrical assembly comprises a PCB, the back end of which is configured as a plug end for removably plugging the PCB into a receptacle of an external communications management system.Type: GrantFiled: February 9, 2009Date of Patent: November 2, 2010Assignee: Avago Technologies Fiber IP (Singapore) Pte. Ltd.Inventors: Tom Sheau Tung Wong, Adrianus Van Haasteren, Tze Wei Lim
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Patent number: 7806601Abstract: A multifiber (MF) ferrule produced using a ferrule molding insert that is jig ground in order to improve the tolerance on the bumper height of a molded ferrule and the surface finish on the region of interest (ROI), thus improving manufacturing yields.Type: GrantFiled: July 27, 2007Date of Patent: October 5, 2010Assignee: Corning Cable Systems LLCInventors: David Lee Dean, Jr., Alan John Malanowski, Scott Timothy Schmidt
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Patent number: 7738760Abstract: An optical polishing fixture for securing one or more optical connectors can include a fixture base having a connector slot for receiving an optical connector and a clamping assembly mounted to the fixture base proximate the connector slot. The connector slot can be defined by at least one side wall defining a side wall plane and the clamping assembly can include a clamp pad moveable relative to the fixture base between a clamping position and a loading position. The clamp pad may move relative to the fixture base at an angle of less than 45 degrees relative to one of (i) a top surface of the fixture base, (ii) a plane perpendicular the side wall plane, or (iii) a plane defined by a portion of the fixture base top surface proximate to the connector slot.Type: GrantFiled: March 21, 2008Date of Patent: June 15, 2010Assignee: Domaille Engineering, LLCInventors: Brian M. Fredrickson, Greg A. Schumacher, Jill B. Christie, Curtis J. Spinler