With Insulator Skirts Patents (Class 174/80)
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Patent number: 8952257Abstract: An electrical conductor carries a rated current in a high-current bushing of a transformer. The electrical conductor includes a conductor piece which extends along an axis and has a cylindrical envelope surface, a first electrical connection, and a second electrical connection. The first electrical connection has two contact surfaces which are aligned parallel to one another. Electrical losses of the electrical conductor are kept low, with a compact design. This is achieved, in part, because the second electrical connection is connected without a joint to the conductor piece, and the first electrical connection is hollow and, at right angles to the axis, has an oval profile with two longitudinal faces which form the two contact surfaces.Type: GrantFiled: May 24, 2010Date of Patent: February 10, 2015Assignee: ABB Technology AGInventors: Ansgar Dais, Michael Christen
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Patent number: 8901430Abstract: A cable termination includes a tubular body having an outer surface and a through aperture, and at least one shed extending from the outer surface. The shed includes an outer edge. A first support is coupled to the shed, extends between the outer surface of the tubular body and the outer edge of the shed, and is configured to increase the rigidity of the shed.Type: GrantFiled: August 8, 2007Date of Patent: December 2, 2014Assignee: G&W Electric CompanyInventor: Mingyang Zhou
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Publication number: 20120279748Abstract: The invention relates to a method and a system for fastening a round conductor 200 to a connection element 100, 100?, 100?, comprising a connection element 100, 100?, 100? that comprises at one end an at least partially shell-shaped part 110, and a round conductor 200 closed with a contact element 210, the contact element 210 being adapted to contact the connection element 100, 100?, 100?, and a fastening device 400, 510, 520, 610, 620, 660, 710, 810, which is adapted to fasten in a frictional manner (force-fit) an end region 210 of the round conductor 200 lying in front of the contact element 210 in the region of the shell-shaped part 110 of the connection element 100, 100?, 100?, to the connection element 100, 100?, 100?.Type: ApplicationFiled: October 26, 2010Publication date: November 8, 2012Applicant: AUTO KABEL MANAGEMENTGESELLSCHAFT MBHInventors: Sebastian Martens, Martin Schloms, Franz-Josef Lietz
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Publication number: 20100078193Abstract: The present invention relates to an improved insulated conductor with a low dielectric constant and reduced materials costs. The conductor (12) extends along a longitudinal axis and an insulation (14, 14<1>) surrounds the conductor (12). At least on channel (16, 16<1>) in the insulation (14, 14<1>) extends generally along the longitudinal axis to form an insulated conductor. Apparatuses and methods of manufacturing the improved insulated conductors are also disclosed.Type: ApplicationFiled: March 27, 2009Publication date: April 1, 2010Applicant: ADC IncorporationInventors: David Wiekhorst, Spring Stutzman, Jeff Stutzman, Scott Juengst, Fred Johnston, Jim L. Dickman, Robert Kenny
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Patent number: 7511221Abstract: A cable is disclosed including at least one conductor, a polymeric insulator surrounding the conductor, the insulator defining a plurality of insulator channels having lengths that run along the length of the conductor. The cable also includes a jacket surrounding the insulator, the jacket also defining a plurality of channels having lengths that run along the length of the jacket.Type: GrantFiled: March 31, 2005Date of Patent: March 31, 2009Assignee: ADC IncorporatedInventors: David Wiekhorst, Robert Kenny
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Patent number: 7288718Abstract: An electrical connector component for sending and receiving communication signals through a power distribution line generally includes an internal conductor, an insulative housing surrounding the conductor and a signal filtering device having a medium-voltage end in electrical contact with the internal conductor and an opposite low-voltage terminal. The signal filtering device is adapted to substantially block passage of power signals yet substantially permit passage of communication signals between the medium-voltage end and the low-voltage terminal. In a method for sending and receiving communication signals through a power distribution line, an access point on a power distribution line is provided without de-energizing the power distribution line, passage of power signals through the access point is blocked and passage of communication signals through the access point are permitted.Type: GrantFiled: October 24, 2005Date of Patent: October 30, 2007Assignee: Thomas & Betts International, Inc.Inventors: Frank M. Stepniak, Larry N. Siebens
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Patent number: 7214880Abstract: A wire is disclosed including a component extending along a longitudinal axis and including at least one first channel extending generally along the longitudinal axis. The component is selected from a conductor, insulation, a jacket or combinations thereof to form a channeled component. Where the channeled component consists of insulation, an outer peripheral surface of the conductor forms one side of the at least one first channel. The at least one first channel is configured to provide at least improved electrical characteristics for communications along the wire.Type: GrantFiled: March 14, 2003Date of Patent: May 8, 2007Assignee: ADC IncorporatedInventors: David Wiekhorst, Robert Kenny, Jeff Stutzman, Jim L. Dickman, Scott Juengst, Fred Johnston, Spring Stutzman
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Patent number: 7049519Abstract: The present invention relates to an improved isolated core or insulated conductor with a low dielectric constant and reduced materials costs. Apparatuses and methods of manufacturing the improved isolated core or insulated conductor are also disclosed. Twisted wire pairs having first and second wires, each of the first and second wires including a conductor and polymeric insulator surrounding the conductor are also disclosed. The polymeric insulators have channels that run along the length of the conductor. The conductors have exterior surfaces exposed to gas within the channels.Type: GrantFiled: March 31, 2005Date of Patent: May 23, 2006Assignee: ADC IncorporatedInventors: David Wiekhorst, Spring Stutzman, Jeff Stutzman, Scott Juengst, Fred Johnston, Jim L. Dickman, Robert Kenny
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Patent number: 6982383Abstract: The present invention relates to a cable section assembly for marine applications having a core structure, such as a buoyant cable antenna interim manufacturing step subassembly, and a protective casing formed from a heat shrinkable tubing which together with the interim subassembly forms a complete assembly. For buoyant cable assembly applications the interim subassembly is at least partially formed of polyurethane material having glass microballoons distributed therein, with such material in any event occupying an outer layer portion of the subassembly. The cable section assembly of the present invention is formed by providing a length of heat shrinkable flexible tubing, inflating or expanding the heat shrinkable tubing to its approximate full diameter, inserting the core structure into the length of tubing, and shrinking the tubing around the core structure.Type: GrantFiled: July 30, 2003Date of Patent: January 3, 2006Assignee: The United States of America as represented by the Secretary of the NavyInventors: Charles D. Spellman, Edward H. Dzwilewski, Thomas S. Ramotowski
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Patent number: 6743983Abstract: The present invention relates to an improved insulated conductor with a low dielectric constant and reduced materials costs. The conductor extends along a longitudinal axis and an insulation surrounds the conductor. At least one channel in the insulation extends generally along the longitudinal axis to form an insulated conductor. Apparatuses methods of manufacturing the improved insulated conductors are also disclosed.Type: GrantFiled: December 16, 2002Date of Patent: June 1, 2004Assignee: Krone Inc.Inventors: David Wiekhorst, Scott Juengst, Jim Dickman, Robert Kenny
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Publication number: 20030113539Abstract: It is an object of the invention to provide a process for producing insulations for electrical conductors by means of powder coating, which results in aging which is improved compared to glass-mica or casting-resin insulation. It is also intended to describe a powder which is suitable for such a process. For this purpose, the powder is applied a number of times in succession, in the form of individual layers which follow one another, until a layer thickness of ≦10 mm is reached, and each of the individual layers undergoes intermediate heat curing before the next individual layer is applied. The intermediate curing of each individual layer uses a curing time which corresponds to 2-10 times the gel time of the powder used. Finally, the entire insulation undergoes final curing. The result of an electrical life test carried out on various specimens insulated with epoxy-resin powder which contains fine filler and has been applied in accordance with the invention is illustrated in the only FIGURE.Type: ApplicationFiled: November 12, 2002Publication date: June 19, 2003Inventors: Thomas Baumann, Johann Nienburg, Jorg Oesterheld, Jorg Sopka
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Patent number: 6232549Abstract: A ground lug insulator assembly having a base member that mounts to a ground lug stud projecting from a splice closure. The base member is cup-shaped and houses a wire connector therein which is connected to the ground lug. A cup-shaped cap member is adapted to mate with the base member and to latch thereto after both are filled with B-sealant gel.Type: GrantFiled: January 26, 1999Date of Patent: May 15, 2001Assignee: Lucent Technologies Inc.Inventors: Denis Edward Burek, Marc Duane Jones, Kenneth Michael Yasinski
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Patent number: 5594827Abstract: The electrical insulator includes a laminated tube serving as a support for a covering of elastomer material constituting a plurality of annular fins which project from the tube. Two circular grooves and a helical groove are formed in the outside wall of the tube for receiving the optical waveguide. The circular grooves are parts of bearing surfaces which are formed at the ends of the tube and to which end fittings of the insulator are secured. The optical waveguide is embedded in the elastomer material and at the bottoms of the grooves.Type: GrantFiled: September 29, 1995Date of Patent: January 14, 1997Assignee: SEDIVER Societe Europeenne d'Isolateurs en Verre et CompositeInventors: Rene Joulie, Gilles Bourdier
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Patent number: 5432300Abstract: This invention aims to facilitate attaching and positional correction of a protecting member for an unshielded section on an end portion of a shielding electric cable 1 and to enhance flexibility of processes of working and wiring the cable 1 and flexibility of a wiring posture of the cable 1. A protecting construction for an end portion of a shielded electric cable 1 comprises: an unshielded section on the end portion of the cable; a flexible and insulative protecting tube 10 having a shielding layer 8 on the interior thereof, the protecting tube 10 being provided with a slit 7 along an axial direction so that the tube 10 can be opened and closed in a peripheral direction, the protecting tube 10 being mounted through the slit 7 on the unshielded section on the end portion of the cable 1; and a tape 11 wound around the protecting tube 10 to secure it (10) to the end portion of the cable 1. The slit protecting tube 10 forms a protecting member for the unshielded section.Type: GrantFiled: August 13, 1993Date of Patent: July 11, 1995Assignee: Sumitomo Wiring Systems, Ltd.Inventors: Atsushi Fujisawa, Isao Akasaka, Hiroyuki Hamada
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Patent number: 5399808Abstract: An arrangement for enclosing the termination of a screened electrical cable to an electrical conductor comprises a coupling element, e.g. an adaptor (1) that is intended to engage the connector and is formed from a metal having a conductive passivate layer thereon, and a dimensionally recoverable article (2) for enclosing the termination after recovery onto the cable. The article (2) includes an electrical screen (8) and is partially recovered into engagement with the coupling element (1) so that an end of the screen (8) is in electrical contract with a portion (5) of the coupling element. The portion (5) of the coupling element has no passivate layer thereon.It has been found that the electrical resistance of the band formed between the screen (8) and the coupling element (1) is relatively constant during storage at elevated temperature.Type: GrantFiled: February 28, 1994Date of Patent: March 21, 1995Assignee: Raychem LimitedInventors: Richard Carter, Adam C. S. Grover, Derrick S. Collett
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Patent number: 5280136Abstract: A terminator for a shielded high voltage cable comprising a thin-walled, flexible, elongate, insulating, elastomeric housing having a bore therethrough from a substantially closed first end providing a seal to an open second end having a skirt to protect the exposed neutral conductors of jacketed concentric neutral (JCN) cable and a plurality of rain sheds formed on the outer surface thereof. The bore has specified zones of different inner diameters to provide a seal about at least a portion of the exposed cable insulation and accept cable of various diameters while minimizing the installation forces encountered when installing the terminator. Various auxiliary devices can be employed to expand the terminator bore for installation and allow cold shrink of the terminator upon removal or repositioning of such devices after installation of the terminator on the cable.Type: GrantFiled: September 16, 1991Date of Patent: January 18, 1994Assignee: Amerace CorporationInventors: Harry G. Yaworski, Alan D. Borgstrom, Timothy R. Taylor
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Patent number: 4791245Abstract: The termination of a high voltage electric cable includes a rigid heat shrinkable tube that extends between the cable jacket and a connector mounted on the cable conductor. The tube is made from an engineering plastic material and has a Flexural Modulus and a Young's Modulus high enough so as to ensure that the termination is self supporting. The termination may be used in the transmission of power from one carriage to another of an electric train.Type: GrantFiled: March 10, 1988Date of Patent: December 13, 1988Assignee: Raychem LimitedInventor: David W. M. Thornley
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Patent number: 4714800Abstract: A tubular article has an outer component of insulating material having a convoluted outer surface, and an inner component of stress grading material. In another embodiment, a tubular article has an outer component of insulating material having an outer surface that is convoluted along part of its length and shedded along another part of its length. The articles may be of heat-shrinkable polymeric material. The articles are particularly useful for terminating high voltage electric cables, and in the manufacture of electrical insulators.Type: GrantFiled: June 24, 1986Date of Patent: December 22, 1987Assignee: Raychem CorporationInventors: Alan D. Atkins, Kenneth Elliott, John S. T. Looms
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Patent number: 4607134Abstract: A termination for a cable (1) insulated with a solid polymer material, for high-tension AC comprises beaker-shaped caps of surface-leakage-current-resistant insulation material, fitted over the end of the cable. The bottom part of the first-fitted cap is surrounded by the opening of the second cap, and so on, each cap enclosing a separate gas-filled space. The opening of the first-fitted cap is closed off by an insulating disc. The separate spaces are filled with sulphur hexafluoride, SF.sub.6.Type: GrantFiled: May 14, 1985Date of Patent: August 19, 1986Assignee: Kabeldon AktiebolagInventor: Kjell M. Wikmar
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Patent number: 4331833Abstract: An insulator comprising a plurality of fins (1) or one-piece groups of fins made of elastomer and having sleeves (2) disposed end-to-end. The fins surround a central member (3) and are vulcanized. The fins form a water-tight tube whose cohesion is ensured at least by vulcanizing intermediate elastomer portions (5) which are inserted raw between vulcanized fins or one-piece groups of fins and adhere to the facing surfaces of the said sleeves by virtue of their subsequent vulcanization.Type: GrantFiled: July 10, 1980Date of Patent: May 25, 1982Assignee: Societe Anonyme dite: CERAVERInventors: Laurent Pargamin, Denis Thuillier
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Patent number: 4275261Abstract: The invention relates to an elastomeric end piece intended for high voltage electric cables.By incorporating into the elastomer one or more substances whose electrical impedance reduces as a function of the voltage applied, such as silicium carbide, zinc oxide doped with cobalt or bismuth, the titanates or zirconates of alkaline or alkaline-earth metals, the distortion of the radial electric field at the end of the cable which could cause disruptive breakdown is avoided.Application to the end of high voltage electric cables, especially in polluted urban areas.Type: GrantFiled: January 3, 1979Date of Patent: June 23, 1981Assignee: TrefimetauxInventor: Jean Fillie
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Patent number: 4234757Abstract: An electrical cable accessory, such as a terminator or an electrical connector element, to be installed at the terminus of a shielded electrical cable using a lubricant to ease the installation has an opening for receiving the cable and a flared inlet passage through which the cable terminus passes, the configuration of the inlet passage permitting the lubricant to enter the opening during installation and assuring that the cable will be gripped appropriately within the opening upon completion of the installation.Type: GrantFiled: May 31, 1978Date of Patent: November 18, 1980Assignee: Amerace CorporationInventor: Craig W. Simons
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Patent number: 4139724Abstract: A coaxial, hermetically sealed end structure is described for electrical instrumentation cables. A generally tubular ceramic body is hermetically sealed within a tubular sheath which is in turn sealed to the cable sheath. One end of the elongated tubular ceramic insulator is sealed to a metal end cap. The other end of the elongated tubular insulator has an end surface which is shaped concave relative to a central conductor which extends out of this end surface. When the end seal is hermetically sealed to an instrumentation cable device and the central conductor is maintained at a high positive potential relative to the tubular metal sheath, the electric field between the central conductor and the outer sheath tends to collect electrons from the concave end surface of the insulator. This minimizes breakdown pulse noise generation when instrumentation potentials are applied to the central conductor.Type: GrantFiled: October 13, 1977Date of Patent: February 13, 1979Assignee: The United States of America as represented by the United States Department of EnergyInventors: James D. Meiss, Collins P. Cannon
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Patent number: 4137423Abstract: An improved coaxial end seal for hermetically sealed nuclear instrumentation cable exhibiting an improved breakdown pulse noise characteristic under high voltage, high temperature conditions. A tubular insulator body has metallized interior and exterior surface portions which are braze sealed to a center conductor and an outer conductive sheath. The end surface of the insulator body which is directed toward the coaxial cable to which it is sealed has a recessed surface portion within which the braze seal material terminates.Type: GrantFiled: December 16, 1977Date of Patent: January 30, 1979Assignee: The United States of America as represented by the United States Department of EnergyInventors: Collins P. Cannon, Donald P. Brown