Patents by Inventor Dennis M. Knecht

Dennis M. Knecht has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9417406
    Abstract: Cable assemblies, optical connector assemblies, and optical connector subassemblies employing a translating element and a unitary alignment pin are disclosed. In one embodiment, an optical connector assembly includes a connector housing defining a connector enclosure and a connector housing opening, a unitary alignment pin including a first pin portion and a second pin portion, and a translating element including a first bore, a second bore, and an optical interface. The unitary alignment pin is secured within the connector enclosure. The first pin portion is disposed within the first bore and the second pin portion is disposed within the second bore such that the translating element translates along the first pin portion and the second pin portion within the connector enclosure.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: August 16, 2016
    Assignee: CORNING CABLE SYSTEMS LLC
    Inventors: Micah C. Isenhour, Dennis M. Knecht, James P. Luther
  • Patent number: 9377565
    Abstract: Embodiments for processing of gradient index (GRIN) rods into GRIN lenses attachable to optical devices, components, and methods are disclosed. A cylindrical GRIN rod comprises an optical axis and a longitudinal axis at a center axis, where the index of refraction may be greatest at the optical axis. The GRIN rod includes GRIN lenses along the longitudinal axis. The GRIN lenses include a first optical surface and a second optical surface opposite the first optical surface. Separation processes and devices may separate the GRIN lenses from the GRIN rods and these processes may be automated. Other processes may polish the first and the second optical surfaces. A gripper may insert the GRIN lens into an optical device.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: June 28, 2016
    Assignee: CORNING CABLE SYSTEMS LLC
    Inventors: Micah C. Isenhour, Dennis M. Knecht, James P. Luther
  • Patent number: 9304265
    Abstract: Embodiments disclosed herein include fiber optic connectors employing a movable optical interface connected by optical fibers to a fiber optic cable, components and methods. In one embodiment, the movable optical interface moves between an extended position for cleaning by the user of the movable optical interface and a retracted position to optically connect the fiber optic connector to an optical device in a mechanically-secure manner. Because the fiber optic cable employs the movable optical interfaces, embodiments described herein involve one or more fiber protection features to prevent optical fiber attenuation and/or damage to the end portions of the optical fibers.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: April 5, 2016
    Assignee: CORNING CABLE SYSTEMS LLC
    Inventors: Micah C. Isenhour, Dennis M. Knecht, James P. Luther
  • Patent number: 9268091
    Abstract: A method for laser processing arrays of optical fibers and high-fiber count splicing connectors and adapters are disclosed. The method includes the steps of providing a structure having optical fibers arranged in a plurality of rows and placing a protection element adjacent to a first row of optical fibers and a second row of optical fibers. Thereafter, the first row of optical fibers can be processed using the laser. The protection element may also be used to move optical fibers. In one embodiment, the protection element has a first portion and a second portion that have relative movement therebetween. In other variations, an absorption element may be provided adjacent the first row of optical fibers for inhibiting incidental damage to the structure.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: February 23, 2016
    Assignee: Corning Cable Systems LLC
    Inventors: Michael de Jong, Radawan Hall, Micah C. Isenhour, Dennis M. Knecht, James P. Luther
  • Patent number: 9151912
    Abstract: An optical fiber segment holder includes a lens holder body comprising a mating surface having a light transmissive material. At least one optical fiber segment is disposed in the lens holder body. The at least one optical fiber segment having an end face located behind the mating surface such that light travels to or from the at least one optical fiber segment through the mating surface.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: October 6, 2015
    Assignee: Corning Cable Systems LLC
    Inventors: Michael de Jong, Micah C. Isenhour, Dennis M. Knecht, James P. Luther
  • Patent number: 9057815
    Abstract: Angular alignment of optical fibers for fiber optic ribbon cables and related methods are disclosed. Employing optical fibers disposed in a ribbon matrix can increase bandwidth between two interconnection points. In one embodiment, optical fibers are angularly aligned during the process of forming a fiber optic ribbon cable. To angularly align the optical fibers, each of the optical fibers include an angular alignment feature to facilitate uniform or substantially uniform angular orientation along a cable when the optical fibers are prepared to be disposed in the ribbon matrix to form a fiber optic ribbon cable. By purposefully aligning the optical fibers during formation of the fiber optic ribbon cable, end portions of the optical fibers are aligned in the ribbon matrix. Thus, end portions of the ribbon matrix are not required to be removed to expose and align the end portions of optical fibers when the ribbon cable is connectorized.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: June 16, 2015
    Assignee: Corning Cable Systems LLC
    Inventors: Douglas L. Butler, Micah C. Isenhour, Dennis M. Knecht, James P. Luther
  • Patent number: 8959695
    Abstract: A cleaning tool for cleaning internal optical components of a fiber optic connector includes a cleaning strip that is advanced past one or more optical surfaces of the connector to wipe the connector free of contaminants. The cleaning tool includes a drive mechanism that is operated by rotating a drive, thereby advancing the cleaning strip along a cleaning strip path and into contact with the one or more optical surfaces. The cleaning tool comprises a cleaning tip that functions to place the cleaning strip in proper alignment within the connector in order to clean the optical surfaces that are not available for cleaning at the endface of the connector. Alignment features are provided in the cleaning tip to properly position the cleaning strip relative the optical surfaces.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: February 24, 2015
    Assignee: Corning Cable Systems LLC
    Inventors: Dave E. Cunningham, Micah C. Isenhour, Dennis M. Knecht, James P. Luther
  • Patent number: 8891926
    Abstract: Methods of reducing and/or avoiding fiber ordering during preparations of a multi-fiber, fiber optic cable to provide a connectorized multi-fiber, fiber optic cable system, and related fiber optic cables and assemblies are also disclosed. The embodiments disclosed herein allow for a section of a multi-fiber, fiber optic cable to be prepared to form two or more connectorized fiber optic cables as part of a multi-fiber cable system without requiring specific fiber ordering in the fiber optic connectors. The natural ordering of the optical fibers in the fiber optic cable is fixed in place in at least one section of the fiber optic cable before the optical fibers are cut to form adjacent fiber optic connectors in the cable system. Thus, the fiber ordering between adjacent fiber optic connectors in the cable system will be the same even though the fiber ordering of the optical fibers was random during cable preparations.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: November 18, 2014
    Assignee: Corning Cable Systems LLC
    Inventors: Jeffery A. DeMeritt, Micah C. Isenhour, Dennis M. Knecht, James P. Luther, James S. Sutherland
  • Patent number: 8781273
    Abstract: Ferrule assemblies having at least one coded magnetic array are disclosed. In one embodiment, a ferrule assembly includes a ferrule body having a coupling surface and a coded magnetic array having a plurality of magnetic regions. The coded magnetic array may be located within the coupling surface. The ferrule assembly further includes a lens component located within the ferrule body. The lens component may have a facet at the coupling surface of the ferrule body at a predetermined angle. In another embodiment, a translating ferrule assembly includes an optical interface and a coded magnetic array, and is configured to translate within a connector housing of an optical connector when coupled to an electronics device. Optical couplings having a coded magnetic array and sockets for receiving a connector are also disclosed.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: July 15, 2014
    Assignee: Corning Cable Systems LLC
    Inventors: Seldon D. Benjamin, Jeffery A. DeMerritt, Micah C. Isenhour, Dennis M. Knecht, James P. Luther
  • Patent number: 8774577
    Abstract: Optical couplings for making and optical connection between one or more devices are disclosed. In one embodiment, an optical coupling includes a coupling face, an optical interface within the coupling face, an optical component positioned within the optical interface, and at least one coded magnetic array. The at least one coded magnetic array may include a plurality of magnetic regions configured aid in mating the optical component with a corresponding optical component of a complementary mated optical coupling to a predetermined tolerance for optical communication. Optical cable assemblies and electronics devices having optical couplings with optical interfaces using coded magnetic arrays are also disclosed.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: July 8, 2014
    Assignee: Corning Cable Systems LLC
    Inventors: Seldon D. Benjamin, Jeffery A. DeMeritt, Micah C. Isenhour, Dennis M. Knecht, James P. Luther
  • Patent number: 8734024
    Abstract: Optical couplings for optically coupling one or more devices are disclosed. According to one embodiment, an optical coupling includes an optical coupling body, an optical interface, and a coded magnetic array located at the optical coupling body. The coded magnetic array has a plurality of magnetic regions configured for mating the optical interface. The optical coupling further includes a reflective surface within the optical coupling body and positioned along an optical path of the optical coupling body. The reflective surface is operable to redirect an optical signal propagating within the optical coupling body such that it propagates through the optical interface. The optical coupling may be configured as a plug, such as a plug of a connector assembly, or as a receptacle, such as a receptacle on an electronic device.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: May 27, 2014
    Assignee: Corning Cable Systems LLC
    Inventors: Micah C. Isenhour, Dennis M. Knecht, James P. Luther
  • Patent number: 8727637
    Abstract: Fiber optic interface devices (20, 320) for electronic devices (300) are disclosed. A plug-type fiber optic interface (20) has an axially moveable multi-fiber ferrule (100) that supports optical fibers (52) or a combination of optical fibers and gradient-index lenses (600). A resilient member (150) serves to provide the ferrule with forward-bias and rear-bias positions relative to a recessed front end (22) of a housing (21). A fiber optic interface assembly (570) that includes mated plug and receptacle fiber optic interface devices (20, 320) is also disclosed.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: May 20, 2014
    Assignee: Corning Incorporated
    Inventors: Micah C. Isenhour, Dennis M. Knecht, James P. Luther
  • Patent number: 8727636
    Abstract: A fiber optic interface device (10) with a positionable cover (100) is disclosed. The device includes a ferrule (50) supported by a housing (21). The ferrule has a front section (65) with a surface (66) and is configured to support at least one optical path interface (OPI) at the front-section surface. The cover supports a cleaning member (170) and is positionable in open and closed positions. In the closed position, the cleaning member is proximate to the at least one optical path interface, and in the open position the at least one optical path interface is exposed.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: May 20, 2014
    Assignee: Corning Incorporated
    Inventors: Micah C. Isenhour, Dennis M. Knecht, James P. Luther
  • Publication number: 20140064667
    Abstract: Cable assemblies, optical connector assemblies, and optical connector subassemblies employing a translating element and a unitary alignment pin are disclosed. In one embodiment, an optical connector assembly includes a connector housing defining a connector enclosure and a connector housing opening, a unitary alignment pin including a first pin portion and a second pin portion, and a translating element including a first bore, a second bore, and an optical interface. The unitary alignment pin is secured within the connector enclosure. The first pin portion is disposed within the first bore and the second pin portion is disposed within the second bore such that the translating element translates along the first pin portion and the second pin portion within the connector enclosure.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Inventors: Micah C. Isenhour, Dennis M. Knecht, James P. Luther
  • Patent number: 8651749
    Abstract: Optical fiber ferrules (10, 20) for making optical or optical and electrical connections are disclosed, along with receptacle and plug fiber optic interface devices (60, 70) using the ferrules, and cable assemblies (6, 7) using the fiber optic interface devices. The optical fiber ferrules support optical pathways (14) and have front ends (12F, 22F) with mating geometries that facilitate a relatively high number of mating/unmating cycles. The ferrule is translatable within the enclosure (62e, 72e). Resilient members (75) provide the ferrule with forward-bias and rear-bias positions when the fiber optic interface device is un-mated and mated, respectively.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: February 18, 2014
    Assignee: Corning Incorporated
    Inventors: Paulo Clóvis Dainese Júnior, Michael de Jong, Jeffery Alan DeMeritt, Micah C. Isenhour, Dennis M. Knecht, James P. Luther
  • Publication number: 20140041790
    Abstract: Embodiments for binding material processing of gradient index (GRIN) rods into GRIN lenses attachable to optical devices, components, and methods are disclosed. A cylindrical GRIN rod comprises an optical axis and a longitudinal axis at a center axis, where an index of refraction may be greatest at the optical axis. The GRIN rod includes GRIN lenses along the longitudinal axis. The GRIN lenses include a first optical surface and a second optical surface opposite the first optical surface. Separation processes and devices may separate the GRIN lenses from the GRIN rods and these processes may be automated. Other processes may polish the first and the second optical surfaces. A gripper may insert the GRIN lens into an optical device.
    Type: Application
    Filed: August 10, 2012
    Publication date: February 13, 2014
    Inventors: Micah C. Isenhour, Dennis M. Knecht, James P. Luther
  • Publication number: 20140042647
    Abstract: Embodiments for processing of gradient index (GRIN) rods into GRIN lenses attachable to optical devices, components, and methods are disclosed. A cylindrical GRIN rod comprises an optical axis and a longitudinal axis at a center axis, where the index of refraction may be greatest at the optical axis. The GRIN rod includes GRIN lenses along the longitudinal axis. The GRIN lenses include a first optical surface and a second optical surface opposite the first optical surface. Separation processes and devices may separate the GRIN lenses from the GRIN rods and these processes may be automated. Other processes may polish the first and the second optical surfaces. A gripper may insert the GRIN lens into an optical device.
    Type: Application
    Filed: August 10, 2012
    Publication date: February 13, 2014
    Inventors: Micah C. Isenhour, Dennis M. Knecht, James P. Luther
  • Publication number: 20140029899
    Abstract: Embodiments disclosed herein include fiber optic connectors employing a movable optical interface connected by optical fibers to a fiber optic cable, components and methods. In one embodiment, the movable optical interface moves between an extended position for cleaning by the user of the movable optical interface and a retracted position to optically connect the fiber optic connector to an optical device in a mechanically-secure manner. Because the fiber optic cable employs the movable optical interfaces, embodiments described herein involve one or more fiber protection features to prevent optical fiber attenuation and/or damage to the end portions of the optical fibers.
    Type: Application
    Filed: July 26, 2012
    Publication date: January 30, 2014
    Inventors: Micah C. Isenhour, Dennis M. Knecht, James P. Luther
  • Patent number: 8622632
    Abstract: Small-form-factor fiber optic interface assemblies (180) for electronic devices (100) are disclosed. The fiber optic interface assemblies include a receptacle (120) configured to matingly engage with a plug (20) of a fiber optic cable assembly (10). Example assemblies include a flexible mount (228) supported by a circuit board (150) and configured to absorb a mechanical force when the plug is mated to the receptacle. The receptacle aperture (223) has at least one transverse dimension (L, W) of between about 2 mm and 4 mm. The assemblies can support both optical and electrical communication and functionality.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: January 7, 2014
    Assignee: Corning Incorporated
    Inventors: Micah C. Isenhour, Dennis M. Knecht, James P. Luther
  • Publication number: 20140003767
    Abstract: An optical fiber segment holder includes a lens holder body comprising a mating surface having a light transmissive material. At least one optical fiber segment is disposed in the lens holder body. The at least one optical fiber segment having an end face located behind the mating surface such that light travels to or from the at least one optical fiber segment through the mating surface.
    Type: Application
    Filed: June 28, 2012
    Publication date: January 2, 2014
    Inventors: Michael de Jong, Micah C. Isenhour, Dennis M. Knecht, James P. Luther