Patents Examined by E. F. Borchelt
  • Patent number: 4151364
    Abstract: An electrical connector device for electrical conductors comprising a conducting ferrule receiving the leads from two insulated conductors and a heat shrinkable plastic tube surrounding the ferrule and extending past the ends of the ferrule, the tube having a normally dry, heat activated adhesive coated on the interior thereof, which tube is heated and thereby shrunk and hermetically bonded to the exterior of the ferrule and the insulation on the conductors. In certain situations an additional insulating layer is interposed between the tube and the ferrule. An electrical conductor, usable in the electrical connector device, comprises an insulated electrical wire, a ferrule receiving a lead from the wire, and a heat shrinkable plastic tube having normally dry, heat activated adhesive coated on the interior thereof, which tube is heated and thereby shrunk and hermetically bonded to both the ferrule and the wire insulation.
    Type: Grant
    Filed: September 29, 1976
    Date of Patent: April 24, 1979
    Inventor: J. Scott Ellis
  • Patent number: 4150249
    Abstract: A cable structure for telecommunication or power supply applications, comprising one or more conductors, each of which is surrounded by a micatape embraced by an insulating layer of heat resistant rubber. The conductors are embraced by a thermoplastic elastomer on the outside of which there is placed a braided metal armour. The structure has an outer sheathing of chlorine sulphonated polyethylene or ethylene propylene rubber. Used as a three-conductor power cable the conductors are twisted together inside the layer of thermoplastic elastomer.
    Type: Grant
    Filed: December 23, 1977
    Date of Patent: April 17, 1979
    Assignee: A/S Norsk Kabelfabrik
    Inventor: Narve S. Pedersen
  • Patent number: 4145567
    Abstract: This cable for high-voltage, alternating current power transmission cables not only reduces the access of moisture into the cable but reduces access of moisture to the inner face of the insulation to such an extent as to make the cable highly resistant to the formation of electrochemical trees in the solid extruded insulation of the cable. A compressible layer of closed cell, foamed plastic is extruded over the outside surface of the insulation; and a metallic shield fits tightly around the compressible layer, the metallic shield being a longitudinally folded tape with a lap seam which is preferably bonded to prevent ingress of air or other fluid into the cable. If the conductor is stranded, sealant is used to prevent ingress of moisture, or of air, and the humidity it contains into the cable at cable ends.
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: March 20, 1979
    Assignee: General Cable Corporation
    Inventors: George Bahder, George S. Eager, Jr., Carlos Katz
  • Patent number: 4143236
    Abstract: A woven electrical cable comprising a plurality of longitudinal conductor wires arranged in a substantially side-by-side manner for transmitting signals with a pair of longitudinal ground wires carried between adjacent conductor wires longitudinally coextending in a substantially parallel relationship with said conductor wires providing an associated ground wire on each side thereof for isolating a respective conductor wire. The conductor wires and ground wires are interwoven with insulating fiber strands to define a woven pattern with the associated ground wires being spaced from each respective conductor wire in the woven pattern so as to isolate and set the impedance of each conductor wire at a desired impedance value whereby the cable impedance may be controlled producing transmission of uniform signals with reduced cross-talk interference.
    Type: Grant
    Filed: November 26, 1976
    Date of Patent: March 6, 1979
    Assignee: Southern Weaving Company
    Inventors: Edgar A. Ross, Odes D. Tatum