Patents Assigned to Siecor Corporation
  • Fiber optic cable retaining guide
    Patent number: 5458019
    Abstract: A fiber optic cable retaining guide is adapted to be used with fiber optic cross connecting and inter-connecting devices. The guide is an open bottom and open top box having a back wall, a front wall, and two end walls with a retainer plate, the movement of which can vary a certain portion of the space delimited by the box elements and which has one surface coated with an elastomeric material to form a gasket, the other gasket being an elastomeric coated end wall of the end wall opposite to the elastomeric coated surface of the retainer plate. The front wall is hingeably attached to permit easy entry and removal of fiber optic cables into and out of the space delimited by the front wall, back wall, an end wall, and the movable retainer plate.
    Type: Grant
    Filed: April 26, 1994
    Date of Patent: October 17, 1995
    Assignee: Siecor Corporation
    Inventor: Joe I. Trevino
  • Fiber optic ribbon
    Patent number: 5457762
    Abstract: Disclosed is an optical fiber ribbon composed of a plurality of planar aligned optical fibers circumscribed by a plastic coating having a secant modulus of elasticity in the inclusive range of 150 to 300 MPa when measured at 2.5% strain as determined by the procedure described in ASTM:D638.91.
    Type: Grant
    Filed: June 13, 1994
    Date of Patent: October 10, 1995
    Assignee: Siecor Corporation
    Inventors: Greg A. Lochkovic, John R. Keesee
  • Optical fiber ribbon with zip cord
    Patent number: 5442722
    Abstract: Disclosed is a fiber optic ribbon containing a plurality of optical fibers and at least one high tensile strength zip cord (or ripcord) all aligned one to another in a planar relationship and disposed in a plastic matrix, the zip cord being spaced apart from the surfaces of laterally disposed optical fibers to the extent that when the zipcord is pulled against the plastic matrix the plastic matrix is cut and thus separates the optical fibers into two or more groups, without exposing the optical fibers.
    Type: Grant
    Filed: July 25, 1994
    Date of Patent: August 15, 1995
    Assignee: Siecor Corporation
    Inventor: Michael G. DeCarlo
  • Cable assembly for use with opto-electronic equipment enclosures
    Patent number: 5425121
    Abstract: Light, flexible tubes are placed around optical fibers extending from the end of a cable jacket. A water impervious plug encases the end of the cable jacket and a portion of the flexible tubes. Couplers are attached to the light waveguide terminal ends and the optical couplers and the plug are placed in an opto-electronic equipment closure. The assembly is designed for use with cable television system aerial closures.
    Type: Grant
    Filed: February 2, 1994
    Date of Patent: June 13, 1995
    Assignee: Siecor Corporation
    Inventors: Terry L. Cooke, David H. Mutzabaugh
  • Laser removal of excess optical fiber prior to connector polishing
    Patent number: 5421928
    Abstract: A method of preparing for polishing the end face of a fiber optic connector having an optical fiber held by a ferrule. A laser beam removes the portion of the optical fiber tip projecting beyond a predetermined distance. The beam has a spot size selected so as to also remove excess epoxy.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: June 6, 1995
    Assignee: Siecor Corporation
    Inventors: Dennis M. Knecht, James P. Luther
  • Water blocked unfilled single tube cable
    Patent number: 5422973
    Abstract: Disclosed is a dry single tube fiber optic cable of the loose tube variety in which there is no filling or flooding materials but none the less adequate provisions are made to protect the optical fibers from damage due to water penetration. The cable structure comprises (1) one or more groups of optical fibers each held together by a circumscribing water absorbent material; (2) a buffering tube having an internal channel larger than the one or more groups of optical fibers in which the groups of optical fibers are moveably disposed; (3) a strength member circumscribing the buffering tube; (4) a water absorbent material circumscribing the strength member, and (5) a jacket circumscribing the strength member.
    Type: Grant
    Filed: March 28, 1994
    Date of Patent: June 6, 1995
    Assignee: Siecor Corporation
    Inventors: Stephen T. Ferguson, Larry W. Field
  • Optical cables having U-shaped carriers exhibiting enhanced crush performance
    Patent number: 5420955
    Abstract: A light waveguide cable contains a layer of U-shaped carriers around a central core. Each U-shaped carrier contains a light waveguide fiber, bundle, ribbon, or ribbon stack. Carrier legs have a predetermined hinge line at a distance from the carrier base greater than the thickness of the light waveguide fiber, bundle, ribbon or ribbon stack. The carrier legs may have a smaller thickness or a concavity at the hinge line.
    Type: Grant
    Filed: June 22, 1994
    Date of Patent: May 30, 1995
    Assignee: Siecor Corporation
    Inventors: Harriet G. Cooke, Jeffrey L. Dellinger, Christopher K. Eoll, Gregory A. Lochkovic
  • Optical receiver stub fitting
    Patent number: 5416874
    Abstract: A cable assembly for attachment to an entry port of an optical enclosure. The assembly includes a plug for an end of an optical cable in a sealed housing having a single rigid tube and a single sealed nut. Connectorized optical fibers or an optical ribbon extend from the plug into the equipment enclosure.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: May 16, 1995
    Assignee: Siecor Corporation
    Inventors: Markus A. Giebel, Terry L. Cooke
  • Network interface device having switch
    Patent number: 5414765
    Abstract: Disclosed is a network interface device for connecting network wiring to a subscriber's wiring at a subscriber's premises, the network interface device having a door covering a test jack, with means for connecting the network wiring to the subscriber wiring when the door is closed and connecting the network wiring to the test jack when the door is open.
    Type: Grant
    Filed: August 23, 1993
    Date of Patent: May 9, 1995
    Assignee: Siecor Corporation
    Inventors: Todd C. Lanquist, James W. Goodson
  • Station protector module for network interface device
    Patent number: 5410596
    Abstract: A station protector module contains telephone company terminals and subscriber terminals. The module has apparatus for grounding the module in a network interface device and also has means for grounding upon extended grounding current flow through a surge protector in the module. The grounding apparatus becomes operative upon the melting of a fusible means. The surge protector is a single component bidirectional voltage sensitive switch.
    Type: Grant
    Filed: September 27, 1993
    Date of Patent: April 25, 1995
    Assignee: Siecor Corporation
    Inventors: William J. Shannon, John P. DuBois, John J. Napierkowski, Dan Kidd
  • Flexible dielectric fiber optic drop cable
    Patent number: 5408561
    Abstract: An optical service cable has a flexural modulus of elasticity of less than 300 MPa. Water absorptive and strength members are laid over a light waveguide core. The cable is suitable for buried service cable applications.
    Type: Grant
    Filed: March 23, 1994
    Date of Patent: April 18, 1995
    Assignee: Siecor Corporation
    Inventors: William J. McCallum, III, Gregory A. Mills, Ilona W. Schmidt
  • Strippable tight buffered optical waveguide
    Patent number: 5408564
    Abstract: A method of making a strippable tight buffered cable is disclosed, the cable comprising an optical waveguide fiber, a first protective coat circumscribing and in contact with the outer surface of the optical waveguide an interfacial layer circumscribing and in contact with the external surface of the first protective coating composed of particles of solid lubricant held together with a cross-linked film-forming binder, and a second protective coating circumscribing the external surface of the interfacial layer. Apparatus for making the strippable cable is also disclosed.
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: April 18, 1995
    Assignee: Siecor Corporation
    Inventor: Gregory A. Mills
  • Fiber optic mechanical splice having grooves for dissipating index matching material impurities
    Patent number: 5400426
    Abstract: Disclosed is a fiber optic mechanical splice having one or more grooves transverse to the groove in which the optical fibers lie to dissipate air trapped in index matching material from the junction point of the optical fibers.
    Type: Grant
    Filed: August 19, 1993
    Date of Patent: March 21, 1995
    Assignee: Siecor Corporation
    Inventors: Michael de Jong, Rodney A. Throckmorton, Dennis M. Knecht
  • Cable bend control device
    Patent number: 5399814
    Abstract: Disclosed is a device for bridging a cable over an edge of an exposed flange. An bridge has a first side containing one or more slots capable of receiving the edge of the flange, and a second side curved to allow a cable to pass over the device without kinking or allowing a bend radius less than that of the second side.
    Type: Grant
    Filed: March 15, 1993
    Date of Patent: March 21, 1995
    Assignee: Siecor Corporation
    Inventors: Harley J. Staber, Gregory G. Costley
  • Optical cable having powder embedded in plastic surfaces
    Patent number: 5388175
    Abstract: A light waveguide cable having powder embedded in the outer surfaces of plastic material such as central members, open ribbon carriers, or buffer tubes. Powder is deposited during the extrusion or after subsequent reheating.
    Type: Grant
    Filed: January 25, 1994
    Date of Patent: February 7, 1995
    Assignee: Siecor Corporation
    Inventor: Mary A. Clarke
  • Compression tester
    Patent number: 5373744
    Abstract: Disclosed is a compression tester which is designed to simulate as closely as possible the low temperature conditions a cable is subjected to in an outdoor environment. Axially aligned composite sample members are compressed longitudinally while fitted in a cylindrically enclosed space in a specially designed sample die assembly. Testing may take place in an environmental chamber.
    Type: Grant
    Filed: June 24, 1991
    Date of Patent: December 20, 1994
    Assignee: Siecor Corporation
    Inventors: Alan T. Parsons, Catharina L. Tedder
  • Tip and die centering method
    Patent number: 5372762
    Abstract: A method for centering a crosshead extrusion die to a tip by fixing the positions of the tip and die while a sizing probe is inserted into the tip and die.
    Type: Grant
    Filed: June 17, 1993
    Date of Patent: December 13, 1994
    Assignee: Siecor Corporation
    Inventors: Charles DeMasters, III, Bruce E. Townsend
  • Composite cable including a light waveguide cable and a coaxial cable
    Patent number: 5371823
    Abstract: A metallic current-carrying coaxial cable is connected by a plastic web to a cable holding light waveguides.
    Type: Grant
    Filed: March 4, 1994
    Date of Patent: December 6, 1994
    Assignee: Siecor Corporation
    Inventors: Michael J. Barrett, Stephen T. Ferguson
  • Buffer tube material for the pedestal environment
    Patent number: 5371824
    Abstract: Disclosed is an optical transmission element for a light waveguide cable. At least one light waveguide is contained within a tube comprising a thermoplastic polyoxymethylene homopolymer or a copolymer thereof.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: December 6, 1994
    Assignee: Siecor Corporation
    Inventors: Donald R. Parris, Alan T. Parsons
  • Metal internal holding clips for fiber optic connector coupling
    Patent number: 5359688
    Abstract: A pair of rigid metallic clips is inserted over containment numbers in a fiberoptic connector coupling. Rigid leg members mounted on the clips extend along latching members of the containment members, thereby limiting displacement of the latching members owing to spring pressure in connector sleeves joined by the connector coupling.
    Type: Grant
    Filed: March 4, 1994
    Date of Patent: October 25, 1994
    Assignee: Siecor Corporation
    Inventor: David T. Underwood