With Fluids Or Vacuum Patents (Class 174/8)
  • Patent number: 8946552
    Abstract: A direct current cable termination apparatus for terminating a high voltage direct current cable, the apparatus includes a current-carrying device comprising a terminal portion of the direct current cable, the cable includes an electrical conductor, a circumferential electrically insulating layer located outside of the electrical conductor, and a circumferential conductive shield located outside of the insulating layer and the electrical conductor. The apparatus includes a housing having an outer shell, and the current-carrying device is adapted to extend in the axial direction of the outer shell. Along at least a part of the axial extension of the current-carrying device the outer shell extends axially with a space between its inner periphery and the current-carrying device.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: February 3, 2015
    Assignee: ABB Research Ltd.
    Inventors: Ming Li, Markus Saltzer, Uno Gafvert, Cecilia Forssen, Mikael Unge, Jorgen Svahn
  • Publication number: 20110247850
    Abstract: The invention relates to a connecting arrangement for connecting supply lines across a gap between railway vehicles, comprising at least one flexible electrical power line and at least one flexible fluid line. To provide an improved connecting arrangement for electrically and pneumatically connecting railway vehicles or pantographs of a train, which is easy to handle and provides an increased reliability, the at least one power line and the at least one fluid line are preassembled to form an integral unitary structure.
    Type: Application
    Filed: April 12, 2011
    Publication date: October 13, 2011
    Applicants: Tyco Electronics UK Ltd., Tyco Electronics France SAS
    Inventors: Cyrille Guyader, Matthew Stubbs
  • Patent number: 7928329
    Abstract: A tap changer is filled with an insulating liquid as well as devices for absorbing variations in the volume of the insulating liquid due to thermal conditions. A gas cushion is provided which is integrated into the tap changer vessel and is formed by members that absorb the variations in the volume of the insulating liquid by changing the shape thereof. Furthermore, a gas cushion envelope is provided which prevents the gas of the gas cushion to be mixed with the gases generated by the thermal decomposition of the insulating liquid.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: April 19, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventor: Jörg Findeisen
  • Publication number: 20100206600
    Abstract: An electrical line is to be insulated from fluid or corrosive media penetrating along the electrical line in an advantageous and cost-effective manner from the standpoint of production engineering. The electrical line having an electrically conductive inner conductor and an insulating jacket surrounding it includes a sealing element, which is disposed on the insulating jacket in a spring-back manner via a first subsection, and which covers the inner conductor across a partial length via a second subsection. The sealing element contains a soluble, in particular fluid sealant, which is pressed into the individual conductors of the inner conductor implemented as stranded wire, and cures in a sealing manner. The electrical line is used, for example, in the automotive industry for a cable harness plug.
    Type: Application
    Filed: December 18, 2009
    Publication date: August 19, 2010
    Inventor: Werner HOFMEISTER
  • Publication number: 20090260843
    Abstract: A high voltage bushing including a metal part provided with a resistive layer.
    Type: Application
    Filed: August 30, 2007
    Publication date: October 22, 2009
    Applicant: ABB RESEARCH LTD.
    Inventors: Christer Tornkvist, Uno Gafvert
  • Publication number: 20090192042
    Abstract: Provided is a superconducting cable provided with an enhanced cooling ability, the superconducting cable including a core including a superconducting wire rod; an inner sheath surrounding the core; an outer sheath surrounding the inner sheath; a plurality of communication pipes that have both ends communicating with the inner and outer sheaths, and are mounted in the longitudinal direction of the inner and outer sheaths; a plurality of valves that are mounted in the communication pipes; and a plurality of auxiliary cooling systems that are mounted on some of the communication pipes. Cooling fluid supplied from the cooling systems is supplied into the inner sheath through the communication pipes, and is then discharged to the outside through the valves.
    Type: Application
    Filed: January 23, 2009
    Publication date: July 30, 2009
    Inventors: Do Hyoung Kim, Wan Ki Park, Choon Dong Kim, Hyun Man Jang, Bong Ki Ji, Mi Kyoung An, Nam Yul Kim
  • Patent number: 7164142
    Abstract: Electrical lead-through systems from atmospheric into vacuum environments are presented. Electrical feed-through structures (EFTS) comprised of a multiplicity of parallel connection lines used to operate e-beam tip-array sources in high vac environments for chip lithography are disclosed. In one embodiment, an EFTS comprises a sheet of insulating material having conductive tracks extending along potions of the sheet and a vacuum seal separating one portion from another portion of the sheet so as to maintain a pressure differential among multiple portions of the sheet.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: January 16, 2007
    Assignee: Applied Materials, Inc.
    Inventors: Jimmy Vishnipolsky, Efim Vinnitsky, Eliyahu Almog
  • Publication number: 20040220561
    Abstract: A cable assembly interconnects an electrosurgical instrument and source equipment for power and fluid transfer. The cable assembly includes a unitary tubular assembly forming a lumen(s) and an insulating sheath(s) for an electrically conducting cord that are integrally interconnected via a web arrangement in a continuum of material. The web arrangement has a thickness sufficient to allow the lumen(s) and sheath(s) to be pulled apart upon application of a pulling force in a direction transverse to the direction of elongation of the tubular assembly.
    Type: Application
    Filed: April 30, 2003
    Publication date: November 4, 2004
    Inventors: Lawrence T. Kirwan, John P. Ariola
  • Publication number: 20040108125
    Abstract: The present invention relates to an electrical cable system and a method for manufacturing an electrical cable system (1) comprising an electrical cable (10) containing a conductor core (2) and for installing said electrical cable system over a longitudinally expandable-contractible element (1′, 6) characterized in that it comprises the successive steps of:
    Type: Application
    Filed: August 27, 2003
    Publication date: June 10, 2004
    Inventor: Per Thomassen
  • Publication number: 20030150630
    Abstract: Electrical lead-through systems from atmospheric into vacuum environments are presented. Electrical feed-through structures (EFTS) comprised of a multiplicity of parallel connection lines used to operate e-beam tip-array sources in high vac environments for chip lithography are disclosed. In one embodiment, an EFTS comprises a sheet of insulating material having conductive tracks extending along potions of the sheet and a vacuum seal separating one portion from another portion of the sheet so as to maintain a pressure differential among multiple portions of the sheet.
    Type: Application
    Filed: February 8, 2002
    Publication date: August 14, 2003
    Applicant: APPLIED MATERIALS, INC.
    Inventors: Jimmy Vishnipolsky, Efim Vinnitsky, Eliyahu Almog
  • Patent number: 6566887
    Abstract: A system that finds breaches in solid insulation, as well as detecting insufficient air gaps between conductors. The invention solves problems in how to detect breaks in solid insulation by applying high voltages without damaging the solid insulation. The invention also overcomes limitations where the voltages required to detect an insufficient air-gap can cause damage to, or are difficult to apply to the electrical device under test. The system for testing conductors held physically separated or otherwise isolated from each other by an insulating material is composed of a high-voltage breakdown tester, a means of connecting the tester to the conductors, and an added gas that is used to displace air in the proximity of the conductors.
    Type: Grant
    Filed: June 4, 2001
    Date of Patent: May 20, 2003
    Assignee: Cirris Systems Corporation
    Inventors: Paul Samuel Smith, Marlin Carl Shelley, Jon Alan Bertrand
  • Patent number: 6225553
    Abstract: The present invention relates to an apparatus and method for increasing the power rating of an offshore high voltage power cable (1) which includes passage of the cable from the sea to a platform installation (2) through a bending strain reliever (BSR) (4). An inlet for introducing cooling fluid to an interface space (5) between the BSR and the cable is provided through a sleeve, (6) closing the space at the end (7) of the BSR and that an outlet for the fluid is provided at the upper end (12) of the BSR through a special flange (13).
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: May 1, 2001
    Assignee: Alcatel
    Inventor: Brigt Løkke Friis
  • Patent number: 4476001
    Abstract: Device for attachment to the overflow line of an electrolytic cell, for collection of alkaline cell liquor and for concurrent interruption of electrical current flow from cell in such liquor. The device consists of a closed container having a liquor inlet in the top portion of the container and outlet in the bottom portion, with the container being divided internally by a horizontal perforated plate, for separating the incoming liquor flow stream into a multiplicity of streamlets or droplets. The device is fabricated from a non-metallic, transparent material that is resistant to the hot alkaline cell liquor, preferably polymethylpentene plastic.
    Type: Grant
    Filed: March 30, 1983
    Date of Patent: October 9, 1984
    Assignees: Nova Rubber Co., FMC Corporation
    Inventors: J. Barrett McDonald, Terry V. Fontalbert
  • Patent number: 4097680
    Abstract: A pair of pumps driven by a common motor draw in ambient seawater through e and expel it through the other to following electronic instrumentation. Coupled between the pumps, a rapidly rotating disk receives the flow of seawater and radially dissipates it in a multitude of separated droplets. The droplets are collected in a reservoir and the second pump expels it to the instrumentation. Where the flowing seawater is separated into droplets by the rapidly spinning disk, a break is created in the electrical conductivity continuity so that the following electronic instrumentation is not influenced by possible electrical potentials in the ambient seawater.
    Type: Grant
    Filed: March 10, 1977
    Date of Patent: June 27, 1978
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Cesar Clavell, Jr.
  • Patent number: 4068489
    Abstract: Method and apparatus for laying an oil filled, electric cable at great depths and under conditions whereby the weight of the oil may cause internal cable pressures which will rupture the cable. In the method, the leading cable end is fed over a guide which is higher than the point at which the weight of the oil column between the guide and the cable source is equal to the normal oil pressure in the cable and is then fed downwardly but without exceeding an amount which would cause the oil column pressure after the guide to exceed safe limits for the cable. The pressure on the oil at the cable source is then reduced producing a torricellian vacuum in the cable at or near the guide which is maintained at a value such that the weight of the oil in the vertical section of the cable does not exceed safe limits. The apparatus includes the guide and pressure regulating and indicating devices at the cable oil source and the leading end of the cable.
    Type: Grant
    Filed: August 31, 1976
    Date of Patent: January 17, 1978
    Assignee: Industrie Pirelli Societa per Azioni
    Inventor: Paolo Gazzana Priaroggia