Patents Represented by Attorney Christopher Paul Lewallen
  • Patent number: 8297854
    Abstract: Fiber optic assemblies including at least one multimode optical fiber that have improved performance are disclosed. In one embodiment, at least one connector is mounted upon and end of at least one multimode optical fiber and the assembly has an insertion loss of about 0.04 dB or less at a reference wavelength of 850 nanometers. Another embodiment is directed to a fiber optic assembly having a plurality of multimode optical fibers attached to a multifiber ferrule. The multifiber ferrule has a pair of guide pin bores having a nominal diameter, wherein the guide pin bores have a tolerance of ±0.0005 millimeters from a nominal diameter for improving performance.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: October 30, 2012
    Assignee: Corning Cable Systems LLC
    Inventors: Scott Robertson Bickham, Radawan Hall, James Phillip Luther, Daiping Ma
  • Patent number: 8285096
    Abstract: Fiber optic cable assemblies and related components, securing methods, and fiber optic cable preparation methods for securing of a fiber optic cable to a retention body and/or fiber optic connector are disclosed. An end portion of the fiber optic cable is prepared and inserted into a retention body or the like for securing the cable to the same. In one embodiment, a partially exposed portion of a strength component and a portion of a cable jacket are secured to a retention body while another portion of the strength component remains secured to the cable jacket. In this manner, the fiber optic cable is secured to the retention body while the strength component and the cable jacket also remain secured to each other for providing strain relief.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: October 9, 2012
    Assignee: Corning Cable Systems LLC
    Inventors: Casey A. Coleman, Thomas Theuerkorn
  • Patent number: 8272792
    Abstract: Retention bodies for securing a fiber optic cable thereto for optical connectorization are disclosed along with fiber optic cable assemblies. The fiber optic cable is inserted into a passage of the retention body and secured to the same using a bonding agent and/or a mechanical element. The rear end opening of the passage is configured for inserting and securing an end portion of the fiber optic cable having at least one strength component and a portion of a cable jacket. Additionally, the retention body has a buckling chamber disposed within the retention body passage for accommodating movement of optical fiber.
    Type: Grant
    Filed: January 19, 2009
    Date of Patent: September 25, 2012
    Assignee: Corning Cable Systems LLC
    Inventors: Casey A. Coleman, Thomas Theuerkorn
  • Patent number: 8267596
    Abstract: 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: Grant
    Filed: August 23, 2010
    Date of Patent: September 18, 2012
    Assignee: Corning Cable Systems LLC
    Inventor: Thomas Theuerkorn
  • Patent number: 8221006
    Abstract: 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: Grant
    Filed: August 23, 2010
    Date of Patent: July 17, 2012
    Assignee: Corning Cable Systems LLC
    Inventor: Thomas Theuerkorn
  • Patent number: 8207445
    Abstract: A sealing body for a cable sleeve, in which a compensation element is embodied as an elastomer element that is inlaid or embedded in the gel-like sealing element is disclosed. The compensation element, by means of which the alterations in the material behavior of the gel-like sealing element which occur in use can be compensated, is embodied as an elastomer element inlaid in the gel-like sealing element.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: June 26, 2012
    Assignee: CCS Technology, Inc.
    Inventors: Jens Knorr, Andreas M. Eichstädt
  • Patent number: 8132971
    Abstract: Methods for centering at least one optical fiber (10) having a centerline (16) in a connector ferrule (100) having at least one bore (120) with a central axis (AC) is disclosed. One method includes inserting a bare-fiber portion (13) into a ferrule bore so that at least a section (10S) of the bare-fiber portion extends beyond the ferrule front end (106). The method also includes selectively applying an amount of energy to the bare-fiber section to form a locally deformable region (19), and forming at a bulge (250) in the locally deformable region. The method also includes causing the bulge to form a force-fit with the bore at the ferrule front end, thereby substantially centering the optical fiber centerline along the bore central axis. Methods of centering nano-engineered optical fibers are also disclosed, wherein the optical fiber end is processed so that a substantially void-free fiber end (14) is made to substantially coincide with the ferrule front end.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: March 13, 2012
    Assignee: Corning Cable Systems LLC
    Inventors: James P. Luther, Darrin M. Miller
  • Patent number: 8055114
    Abstract: A cable sleeve for the structured storage and handling of optical waveguides guided in optical waveguide cables is disclosed. The cable sleeve comprises a covering body, which defines an interior. The cable sleeve also comprises a sealing body comprising two dimensionally stable end pieces and a compressible gel element arranged between the end pieces. The sealing body is adapted to be inserted into an opening of the covering body and is operable for feeding optical waveguide cables into the interior and/or for feeding optical waveguide cables out of the interior. The sealing body bears against a stop with an inner one of the two dimensionally stable end pieces. A locking body can be screwed to an outer one of the two dimensionally stable end pieces of the sealing body while compressing the gel element. At least one compensation element is operable for storing the force applied via the locking body and exerting a compression force onto the gel element.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: November 8, 2011
    Assignee: CCS Technology, Inc.
    Inventors: Wolf Kluwe, Roman Arnold Theodor Syplacz, Thorsten Müller
  • Patent number: 8011835
    Abstract: A splicer comprises a positioning device, in which the fiber ends in general have a residual offset. A memory stores a predetermined relationship between the possible offset and a parameter which controls the application of heat. The parameter which controls the application of heat, for example the splicing time for a predetermined splicing current, is defined on the basis of an actual offset which can be recorded by means of cameras.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: September 6, 2011
    Assignee: CCS Technology, Inc.
    Inventor: Karsten Contag
  • Patent number: 7936962
    Abstract: An optical fiber distribution enclosure includes a housing defining an interior, a first fiber distribution area disposed within an upper portion of the interior, a second fiber distribution area disposed within a lower portion of the interior and a signal splitting area disposed between the fiber distribution areas. A splitter module secured within the signal splitting area has a connectorized splitter input optical fiber and connectorized splitter output optical fibers. A fiber parking area is movably disposed within the lower portion adjacent the second fiber distribution area for temporarily storing splitter output optical fibers that are not routed to the fiber distribution areas. An input fiber distribution area disposed within the interior interconnects an optical fiber of a feeder cable with the splitter input optical fiber. The splitter output optical fibers are eventually routed to a fiber distribution area and interconnected with a corresponding optical fiber of a distribution cable.
    Type: Grant
    Filed: April 12, 2010
    Date of Patent: May 3, 2011
    Assignee: Corning Cable Systems LLC
    Inventors: Ronald L. Mudd, Daniel S. McGranahan, Guy Castonguay, Antwan J. Works