Patents Assigned to Prysmian Communications Cables and Systems USA, LLC
  • Patent number: 9110265
    Abstract: A splittable optical fiber ribbon has a decreased propensity for fiber fallout along a longitudinal split. Fibers adjacent to a split location, called border fibers, have increased bond strength between their ink-coating and a surrounding matrix material. The bond strength is increased by first partially curing an ink that covers the border fibers, coating the partially-cured fibers with a matrix material, and then substantially fully curing the ink and the matrix material substantially simultaneously. The ribbon may include one or more grooves to enhance splitting the ribbon into subsets.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: August 18, 2015
    Assignee: PRYSMIAN COMMUNICATION CABLES AND SYSTEMS USA, LLC
    Inventors: Ben H. Wells, Grant M. Davidson, John Sach
  • Patent number: 8660394
    Abstract: An optical fiber cable includes at least one buffer tube that includes a plurality of water-blocking plugs and an optical fiber. The water-blocking plugs can be spaced along the buffer tubes, substantially filling the cross-sectional space within the buffer tube not already filled by the optical fiber. The water-blocking plugs can provide a stronger bond between the optical fibers and the inner tube. This is reflected by a high normalized pullout force for the optical fiber, such as, above 5.0 N/m. Yet, the resulting fiber optic cable does not suffer from problems associated with a higher pullout force, such as attenuation.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: February 25, 2014
    Assignee: Prysmian Communications Cables and Systems USA, LLC
    Inventors: Ben Wells, John Sach, Martin Hanchard, Grant Davidson
  • Publication number: 20130279866
    Abstract: A splittable optical fiber ribbon has a decreased propensity for fiber fallout along a longitudinal split. Fibers adjacent to a split location, called border fibers, have increased bond strength between their ink-coating and a surrounding matrix material. The bond strength is increased by first partially curing an ink that covers the border fibers, coating the partially-cured fibers with a matrix material, and then substantially fully curing the ink and the matrix material substantially simultaneously. The ribbon may include one or more grooves to enhance splitting the ribbon into subsets.
    Type: Application
    Filed: June 17, 2013
    Publication date: October 24, 2013
    Applicant: Prysmian Communications Cables and Systems USA, LLC
    Inventors: Ben H. Wells, Grant M. Davidson, John Sach
  • Patent number: 8565564
    Abstract: An optical fiber cable for bundled drop applications has a plurality of optical fiber sub-units stranded together in an S-Z lay configuration and a jacket surrounding and holding the sub-units in the S-Z configuration without assistance from binder threads. The jacket contacts at least some of the sub-units and has one, but preferably at least two, longitudinally disposed grooves on an external surface. With at least two grooves, the sub-units are accessed by bending the cable until the jacket buckles between the grooves, cutting the jacket at the buckle, and peeling back a portion of the jacket longitudinally between the grooves.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: October 22, 2013
    Assignee: Prysmian Communications Cables and Systems USA, LLC
    Inventors: Jonathan Gerald Fitz, Ben H. Wells, Mauricio Silva
  • Patent number: 8467647
    Abstract: A splittable optical fiber ribbon has a decreased propensity for fiber fallout along a longitudinal split. Fibers adjacent to a split location, called border fibers, have increased bond strength between their ink-coating and a surrounding matrix material. The bond strength is increased by first partially curing an ink that covers the border fibers, coating the partially-cured fibers with a matrix material, and then substantially fully curing the ink and the matrix material substantially simultaneously. The ribbon may include one or more grooves to enhance splitting the ribbon into subsets.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: June 18, 2013
    Assignee: Prysmian Communication Cables and Systems USA, LLC
    Inventors: Ben H. Wells, Grant M. Davidson, John Sach
  • Patent number: 8175434
    Abstract: An all-dielectric self-supporting optical fiber cable utilizes a single layer reverse oscillated lay (ROL) design and includes a fiber count of more than 288 fibers. By arranging buffer tubes in a single layer, the ADSS cable effectively isolates the tensile and thermo strain of the cable in central and outer strength members, thus preventing strain from aerial installation from impairing or otherwise inversely impacting the performance of the optical fibers. Moreover, fibers are loosely housed in bundles to permit fiber movement and further prevent strain on the fibers.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: May 8, 2012
    Assignee: Prysmian Communication Cables and Systems USA, LLC
    Inventors: Grant M. Davidson, William E. Wolfe, Ben H. Wells
  • Patent number: 7123801
    Abstract: Optical fiber cables with a central strength member encircled by a jacket having ducts which are disposed around the strength member and which receive one or more optical fibers with jacket material between the ducts and the outer surface of the jacket. The optical fibers are free to move in the ducts, and preferably, the optical fibers are tight buffered. Portions of the jacket intermediate the ducts connect to the strength member which resists longitudinal movement of the jacket relative to the core. However, the jacket can be separated from the core by manual pulling force after the jacket is axially and radially cut at a pair of diametrically opposite ducts. Preferably, the jacket has outer surface indicia showing the positions of the slots, and the cables can include water blocking materials.
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: October 17, 2006
    Assignee: Prysmian Communications Cables and Systems USA, LLC
    Inventor: Jon Fitz