One Layer (i.e., Additional To Its Mounting) Patents (Class 200/267)
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Patent number: 12010804Abstract: A power receptacle for supplying power to a plug inserted therein includes a shell, which includes a cover assembly having at least one socket on its exterior adapted to receive the plug, and a base cooperating with and coupled to the cover assembly; an electrical connection assembly, disposed within the shell, and configured to electrically connect to the plug which is inserted into the socket; a PCB (printed circuit board) assembly, disposed within the shell, including a power processing circuit, and electrically coupled to the electrical connection assembly; and a grounding frame, formed of metal, and partially disposed between the electrical connection assembly and the PCB assembly. The structure improves heat dissipation from interior components of the receptacle and its electromagnetic compatibility.Type: GrantFiled: June 24, 2022Date of Patent: June 11, 2024Inventor: Chengli Li
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Patent number: 11875957Abstract: A high voltage electric switch includes contacts with graphite carbon electrode forming the arc gap. In addition, the carbon contacts are located in a chamber containing at least 60% carbon dioxide (CO2) as a dielectric gas to achieve improved arc interrupting performance. In conventional switches, the metallic contacts introduce metallic vapors into the arc plasma that inhibits the ability of the dielectric gas to interrupt high voltage, high current arcs. As the element carbon is inherently present in CO2 gas, the addition of vapors from the carbon electrodes into the dielectric gas does not significantly interfere with the dielectric arc-interrupting performance of the CO2 dielectric gas.Type: GrantFiled: May 23, 2022Date of Patent: January 16, 2024Assignee: SOUTHERN STATES LLCInventors: Brian Berner, Joseph R Rostron, Brian Roberts
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Patent number: 10959793Abstract: A surgical instrument support arm of a teleoperated patient side cart may include a first arm portion including a first connector end and a second a second arm portion including a second connector end. The second arm portion may be removably connectable to the first arm portion via mating engagement of the first and second connector ends. The first and second connector ends may each include complementary mechanical connections and complementary electrical connections. At least one of the electrical connections of the first and second connector ends may include electrical shielding to protect against electrical interference in a position in which the electrical connections are matingly engaged. The electrical shielding may be configured to axially compress when the electrical connections of the first and second connector ends are matingly engaged.Type: GrantFiled: September 3, 2019Date of Patent: March 30, 2021Assignee: INTUITIVE SURGICAL OPERATIONS, INC.Inventors: Roman L. Devengenzo, Alan W. Petersen, Bruce M. Schena
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Patent number: 10490376Abstract: A rivet-type contact of the present invention has a head part made of a contact material, and a leg part narrower than the head part in width and configured to be deformed at fixation. The leg part includes a flange part larger than the leg part in diameter, in an end part of the side of the head part, the flange part is embedded in the head part such that a lower end surface of the flange part and a lower end surface of the head part become approximately flat, and a length (l) between an endmost part of the flange part and a starting point of the leg part satisfies l<L with respect to a length (L) between an endmost part of the head part and the starting point of the leg part. Specifically, it is favorable that l satisfies 0.5L?l?0.9L with respect to L.Type: GrantFiled: December 13, 2013Date of Patent: November 26, 2019Assignee: TANAKA KIKINZOKU KOGYO K.K.Inventors: Masao Kuroda, Hiroshi Shirahata
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Patent number: 10294579Abstract: A portable electroplating system with components integrated into a complete system, rather than separated and disjointed. A single electroplating system can be self-contained to include all necessary rectifiers, tanks, cleaning functionalities, and other helpful or necessary items. By using smaller components than conventional electroplating systems, the system can allow for more economical use of chemicals, solutions, and energy and can be utilized more efficiently towards a unique shape or size of object to be plated. The system can also include wheels to make the system portable. A rack management system can be employed to move objects from one location to another within the system.Type: GrantFiled: March 29, 2017Date of Patent: May 21, 2019Assignee: Snap-on IncorporatedInventors: Kraig A. Tabor, Thomas L. Kassouf, Ricardo M. Guedes, Greg P. Formella, Alan J. Birschbach, Peter W. Eisch, Garry L. Dillon, Chad J. Kaschak, Michael G. Gentile
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Patent number: 10204747Abstract: Provided is a solenoid switch of a motor including a solenoid case, a solenoid having at least one control terminal for connection to at least one external control cable, two power terminals for connection to external power cables, two stationary serrated electrical contacts mounted within the solenoid case, where each serrated electrical contact is electrically connected to a corresponding one of the power terminals, two movable electrical contacts coupled to the solenoid and electrically connected to windings of the motor, where each movable electrical contact corresponds to one of the two serrated electrical contacts, and is movable by applied force of the solenoid. In response to a control signal received by the at least one control terminal, the solenoid is energized and moves the two movable electrical contacts to mate with the corresponding two serrated electrical contacts resulting in an electrical connection between the power cables and the motor windings.Type: GrantFiled: July 14, 2016Date of Patent: February 12, 2019Assignee: AMETEK, INC.Inventor: Michael Reiter
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Patent number: 9673003Abstract: The present invention relates to an electric switch having a first contact element, an insulating element, and a second contact element. The first contact element includes a first contact surface on which the insulating element is disposed. The second contact element includes a conductive member moveable relative to the first contact element and the insulating element.Type: GrantFiled: December 27, 2013Date of Patent: June 6, 2017Assignees: Raychem International, Tyco Electronics UK Ltd.Inventors: Melvyn McGann, Brendan Normoyle, Leslie Allen
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Patent number: 9646779Abstract: A circuit breaker includes at least one set of breaker contacts and a contact actuating mechanism configured to open and close the at least one set of contacts. The circuit breaker further includes a polarity sensitive shunt trip mechanism mechanically coupled to the contact actuating mechanism and configured to lock the contact actuating mechanism responsive to a shunt trip voltage of a first polarity to prevent closing of the at least one set of contacts and to unlock the contact actuating mechanism responsive to a shunt trip voltage of a second polarity to enable closing of the at least one set of breaker contacts.Type: GrantFiled: December 18, 2014Date of Patent: May 9, 2017Assignee: Eaton CorporationInventors: Anthony Thomas Ricciuti, Daniel Evan Palmieri
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Patent number: 9056443Abstract: A brazing process, a braze arrangement, and a brazed article are disclosed. The brazing process includes brazing an article with a braze arrangement. The braze arrangement includes a first braze material and a second braze material, the first braze material having a first melting point and the second braze material having a second melting point, the first melting point differing from the second melting point. The brazed article includes a treatment region, a first brazed material positioned within the treatment region, and a second brazed material positioned distal from the article in comparison to the first brazed material. The first brazed material is formed by the first braze material and the second brazed material is formed by the second braze material.Type: GrantFiled: February 4, 2013Date of Patent: June 16, 2015Assignee: General Electric CompanyInventors: David Edward Schick, Dean William Morrison, Yan Cui, Bill Damon Johnston, Srikanth Chandrudu Kottilingam
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Publication number: 20140054144Abstract: A method for making a carbon nanotube (CNT) touch panel includes forming a first CNT film and a second CNT film where the first CNT film and the second CNT film are adhered onto a same surface of a base.Type: ApplicationFiled: August 22, 2013Publication date: February 27, 2014Applicant: TIANJIN FUNAYUANCHUANG TECHNOLOGY CO.,LTD.Inventor: HO-CHIEN WU
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Publication number: 20130341167Abstract: A touch panel device includes a transparent substrate, at least one decorative layer, a plurality of light transmission conductive traces, and a reflection layer. The transparent substrate has a border region. A light transmission sensing electrode layer is formed on a surface of the transparent substrate corresponding to the border region. The decorative layer is formed on the border region. The plurality of light transmission conductive traces is alternately formed on the decorative layer and electrically connected to the light transmission sensing electrode layer, for transmitting signals generated by the light transmission sensing electrode layer. The reflection layer is disposed on a side of the plurality of light transmission conductive traces for reflecting light passing through the decorative layer and the plurality of light transmission conductive traces.Type: ApplicationFiled: June 20, 2013Publication date: December 26, 2013Inventors: Yi-Chun Wu, Yu-Chen Liu, Wun-Yi Shie, Chung-Hui Hu
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Publication number: 20130328798Abstract: A touch panel includes a substrate, a transparent conducting layer, and an antireflection film. The substrate is made of sapphire, and includes a first surface and a second surface opposite to the first surface. The transparent conducting layer is covered on the first surface and is configured for detecting a touch operation thereon. The antireflection film is coated on the second surface and is configured for increasing the transmissivity of the substrate in relation to visual light.Type: ApplicationFiled: November 13, 2012Publication date: December 12, 2013Inventor: GA-LANE CHEN
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Patent number: 8093518Abstract: A switching element 100 includes an insulating substrate 10, a first electrode 20 provided on the insulating substrate 10, a second electrode 30 provided on the insulating substrate 10, and an interelectrode gap 40 provided between the first electrode 20 and the second electrode 30, a distance G between the first electrode 20 and the second electrode 30 being 0 nm<G?50 nm.Type: GrantFiled: September 25, 2006Date of Patent: January 10, 2012Assignees: National Institute of Advanced Industrial Science and Technology, Funai Electric Advanced Applied Technology Research Institute, Inc.Inventors: Yasuhisa Naitoh, Masayo Horikawa, Hidekazu Abe, Tetsuo Shimizu, Wataru Mizutani, Shigeo Furuta, Masatoshi Ono, Tsuyoshi Takahashi
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Patent number: 7638721Abstract: A contact surface. for electrical contacts may include an Ag layer deposited on a copper-based substrate using galvanic methods. The Ag layer includes finely dispersed graphite particles in a quantity of, e.g., 1 to 3 weight % of the Ag layer, the graphite particles having a length in the range of, e.g., 0.5 to 20 ?m.Type: GrantFiled: August 3, 2004Date of Patent: December 29, 2009Assignee: Robert Bosch GmbHInventors: Peter Rehbein, Volker Haas
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Patent number: 6875937Abstract: A recessed electrical outlet installation comprises a wall an electrical outlet device box, an electrical outlet device and a cover plate. The wall defines a first open region behind an opening formed within the wallboard and a second open region located below the opening and behind the wallboard. The box is mounted to the wall and has a first portion and a recessed second portion, the first portion having an open front, the second portion recessed away from the open front. The first portion comprises outlet device mounting structure used to mount the electrical outlet device to and within the box. The second portion defines a wiring cavity sized to house wire junctions, the wire junctions electrically connected to the electrical outlet device. At least a substantial part of the first portion is positioned within the first open region. The second portion is positioned within the second open region.Type: GrantFiled: December 19, 2003Date of Patent: April 5, 2005Inventor: Thomas A. Saviano
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Patent number: 6706981Abstract: A switch structure having multiple contact surfaces that may contact each other. One or more of the contact surfaces may be coated with a resilient material such as diamond.Type: GrantFiled: March 13, 2003Date of Patent: March 16, 2004Assignee: Intel CorporationInventors: Qing Ma, Kramadhati V. Ravi, Valluri Rao
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Publication number: 20040040825Abstract: A switch structure having multiple contact surfaces that may contact each other. One or more of the contact surfaces may be coated with a resilient material such as diamond.Type: ApplicationFiled: March 13, 2003Publication date: March 4, 2004Inventors: Qing Ma, Kramadhati V. Ravi, Valluri Rao
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Patent number: 6655012Abstract: In the fabrication of a surge protector device which utilizes breakdown phenomena of a resistive film, a case which fixes metal bars in it, makes electrical contacts with the metal bars and contains oxidizing and refractory agents, a cap, metal bars and oxidizing and refractory agents are prepared in advance. In the fabrication process of the surge protector device using these elements, a step to control the force applied to the cap, the metal bars and the case so that the force applied to the interface between the resistive films and the mechanical contacts which form electrodes to the metal bars can be controlled. Automation process to fabricate the surge protector device will be realized and efficient fabrication of the precise surge protector device will be also realized. A surge protector device whose breakdown voltage is precisely controlled will be realized reproducibly.Type: GrantFiled: June 18, 2001Date of Patent: December 2, 2003Inventor: Takashi Katoda
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Publication number: 20030175550Abstract: An electrically conductive metal strip for the production of electrical contact components, in particular plug connectors, having a core strip made of a copper material and a metal facing, made of a copper-nickel-zinc alloy (nickel silver), roll-bonded clad on at least one side. The core strip possesses an electrical conductivity of at least 20 m&OHgr;/mm2. The combination of copper material and nickel silver as the metal facing yields a metal strip with high electrical conductivity whose mechanical surface properties correspond to those of nickel silver.Type: ApplicationFiled: November 20, 1998Publication date: September 18, 2003Inventors: ALBERT RUMBACH, UDO ADLER
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Patent number: 6621022Abstract: A switch structure having multiple contact surfaces that may contact each other. One or more of the contact surfaces may be coated with a resilient material such as diamond.Type: GrantFiled: August 29, 2002Date of Patent: September 16, 2003Assignee: Intel CorporationInventors: Qing Ma, Kramadhati V. Ravi, Valluri Rao
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Patent number: 6608268Abstract: A proximity micro-electro-mechanical system (MEMS) utilizing a gaseous capacitive gap between two conductive members. The gaseous gap is maintained by insulating structures that prevent the two conductive members from shorting. Once actuated, the gaseous gap allows high-frequency signals to be transmitted between the two conductive members.Type: GrantFiled: February 5, 2002Date of Patent: August 19, 2003Assignee: MEMtronics, a division of Cogent Solutions, Inc.Inventor: Charles L. Goldsmith
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Publication number: 20010009724Abstract: Deposition of metal in a preferred shape, including coatings on parts, or stand-alone materials, and subsequent heat treatment to provide improved mechanical properties. In particular, the method gives products with relatively high yield strength. The products often have relatively high elastic modulus, and are thermally stable, maintaining the high yield strength at temperatures considerably above 25° C. This technique involves depositing a material in the presence of a selected additive, and then subjecting the deposited material to a moderate heat treatment. This moderate heat treatment differs from other commonly employed “stress relief” heat treatments in using lower temperatures and/or shorter times, preferably just enough to reorganize the material to the new, desired form. Coating and heat treating a spring-shaped substrate provides a resilient, conductive contact useful for electronic applications.Type: ApplicationFiled: January 29, 2001Publication date: July 26, 2001Inventors: Jimmy Kuo-Wei Chen, Benjamin N. Eldridge, Thomas H. Dozier, Junjye J. Yeh, Gayle J. Herman
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Patent number: 6180900Abstract: A contact key switch according to the present invention is a highly reliable contact key switch allowing the prevention of rise of a resistance, easy integral molding, no need of selection of an adhesive and adhesion process for use accomplished by forming the surface of the electroconductive contact portion with a fabric or a nonwoven fabric made of a electroconductive fiber like a carbon fiber, and by using same material the rubber-like elastic body of the main body of the contact switch.Type: GrantFiled: February 19, 1999Date of Patent: January 30, 2001Assignee: Polymatech Co., Ltd.Inventor: Wataru Horiuchi
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Patent number: 5876862Abstract: Sliding contacts comprising alloys such as Pd/Cu/Ag, Pt/Cu/Ag, Pd/Cu/Ag/Ni, Pt/Cu/Ag/Ni, Ag/Pd/Cu,Au, Ag/Pt/Cu/Au and two-layered composites comprising a surface layer of one of the foregoing alloys and a base layer comprised of copper or a copper-containing alloy. Also, three-layered composites comprising a surface layer of one of the foregoing alloys, an intermediate layer of one of the foregoing alloys and a base layer comprised of copper or a copper-containing alloy as well as direct current motors comprising commutators comprising a three-layered composite.Type: GrantFiled: May 6, 1997Date of Patent: March 2, 1999Assignees: Mabuchi Motor Co., Ltd., Tanaka Kikinzoku Kogyo K.K.Inventors: Isao Shibuya, Toshiya Yamamoto, Takao Asada, Tetsuya Nakamura
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Patent number: 5679471Abstract: A thin film silver-nickel coating for use as a protective coating on electrical terminals of separable electrical connectors. The silver-nickel coating is a silver-nickel nano-composite material characterized by silver and nickel grains having an average grain size of about five to about fifty nanometers, yielding a silver-rich phase and a harder nickel-rich phase as a result of silver and nickel being immiscible. In accordance with this invention, the volume fraction of nickel significantly influences the fretting wear resistance of the coating, with a preferred nickel content being resulting in the presence of disconnected islands of the nickel phase dispersed within a relatively softer silver matrix.Type: GrantFiled: October 16, 1995Date of Patent: October 21, 1997Assignee: General Motors CorporationInventors: Yang-Tse Cheng, George Albert Drew
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Patent number: 5660570Abstract: An interconnection device is disclosed for providing electrical connection between two conducting elements that requires less applied force than a standard ohmic connection device of the same connection area. A surface of at least a first conducting element includes a plurality of atomically sharp projections for creating a strong electric field near the tip of each projection, each projection being disposed within a locally depressed portion of an insulating layer that serves to maintain a space between each tip and a second conducting element that contacts the insulating layer. The strong electric field at each tip induces a variety of conduction modes each contributing to an aggregate current flow from the first conducting element to the second. In an alternate embodiment, a plurality of projections are disposed on the peaks and valleys of a rough surface without an insulating layer, the projections providing a variety of conduction modes.Type: GrantFiled: March 10, 1995Date of Patent: August 26, 1997Assignee: Northeastern UniversityInventors: Chung Chan, Keith Warner, George B. Cvijanovich
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Patent number: 5484971Abstract: An electrical contact comprises a body formed of a precious metal in which the precious metal defines a contact surface of the body. At least one projection of the precious metal is formed generally centrally of the contact surface so as to extend therebeyond by successive discrete extrusions of the precious metal into a preselected configuration comprising the projection. A free end portion on the projection is spaced from the contact surface and comprises a chordal section of a sphere.Type: GrantFiled: April 1, 1991Date of Patent: January 16, 1996Assignee: General Electric CompanyInventors: Raphael A. Gonzalez, Ronald W. Kelly
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Patent number: 5416969Abstract: A sliding contact producing method is provided wherein noble metal balls are easily positioned on a metal plate; the weld strength between the noble metal ball and the metal plate can be obtained sufficiently; and a noble metal mounting jig can be prevented from damage when the metal plate is beam-welded with the noble metal ball. While being received in the recess portions of a jig, the noble metal balls are respectively contacted with bowllike recesses formed in the base surface of the metal plate. YAG laser beam is irradiated on the metal plate to weld the metal plate with the noble metal ball. Then the metal plate is sheared in a determined shape to form resilient strips. The present invention can improve welding operation efficiency and the reliability of welded portions. Since the metal plate being wider than that of the resilient strip receives beam, the metal contact mounting jig can be prevented from damage due to beam welding.Type: GrantFiled: April 28, 1993Date of Patent: May 23, 1995Assignee: Alps Electric Co., Ltd.Inventor: Akito Miura
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Patent number: 5338905Abstract: An accelerator sensor is formed of a cylinder of a conductive material, a magnetized inertial member mounted in the cylinder so as to be movable longitudinally of the cylinder, a conductive member mounted at least on the end surface of the inertial member that is on the side of one longitudinal end of the cylinder, a pair of electrodes disposed at this one longitudinal end of the cylinder, and an attracting member disposed near the other longitudinal end of the cylinder. When the conductive member of the inertial member comes into contact with the electrodes, these electrodes are caused to conduct via the conductive member. The attracting member is made of a magnetic material such that the attracting member and the inertial member are magnetically attracted toward each other. At least a part of the electrodes described is made of a magnetic material which attracts magnetically the inertial member to prevent chattering between the inertial member and the electrodes.Type: GrantFiled: March 22, 1993Date of Patent: August 16, 1994Assignee: Takata CorporationInventor: Kazuo Yoshimura
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Patent number: 5272295Abstract: An electric contact is provided on at least one of a pair of conductors and includes a surface which is coated with a ceramic layer comprising at least one material selected from the group consisting of nitrides, carbides and borides of high melting point metals, this electric contact having a low contact resistance and good reliability.Type: GrantFiled: January 23, 1992Date of Patent: December 21, 1993Assignees: Sumitomo Electric Industries, Ltd., Sumitomo Wiring Systems, Ltd.Inventors: Kazuo Sawada, Atsushi Nakamura, Isao Okugawa
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Patent number: 5268237Abstract: A bimetallic or trimetallic electrical contact, only its shank portion being made of copper or copper alloy and being covered by a thin layer of silver or silver alloy for protecting the shank portion from environmental erosion. Said shank portion is preferably made by cutting silver-plated wire to a short piece.Type: GrantFiled: September 28, 1992Date of Patent: December 7, 1993Assignee: Chugai Denki Kogyo K.K.Inventors: Seiichi Tanaka, Shigeru Tabei
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Patent number: 5233143Abstract: A high-power, high-repetition-rate spark gap switch having metal-hydride electrodes is provided The spark gap switch is configured with a trigger and two electrodes fabricated with metal hydrides. The hydride metals may be selected from a variety of alloys including iron, nickel, magnesium, and palladium based alloys. Use of these alloys for fabrication of the electrodes permits hydrogen to be absorbed into the electrode material at a density approximately that of liquid hydrogen. During operation of the switch, the increasing temperature causes hydrogen to be desorbed into cavity surrounding the switch. Whereas the increasing temperature lowers the breakdown voltage of the switch, the increasing pressure raises the breakdown voltage. The result is the switch operates at a constant breakdown voltage independent of temperature.Type: GrantFiled: November 6, 1991Date of Patent: August 3, 1993Assignee: The United States of America as represented by the Secretary of the NavyInventors: R. Kenneth Hutcherson, Stuart L. Moran
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Patent number: 5209195Abstract: An ignition distributor wherein at least either one of the discharge element of a stationary electrode and the discharge element of a rotary electrode are composed of a sintered body comprising at least a ferrite and silicon oxide and have a surface precipitate layer having a thickness of from 1 to 7 .mu.m and a silicon oxide content larger than that of a core portion of the sintered body and the discharge element has an electric resistivity of from 10.sup.4 to 10.sup.6 .OMEGA. in a portion from a site at which said voltage is applied to the discharge element to a site at which an electric discharge occurs.Type: GrantFiled: July 15, 1992Date of Patent: May 11, 1993Assignee: Nippondenso Co., Ltd.Inventors: Seiki Nakagawa, Yoshitaka Sato, Hideo Asakura
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Patent number: 5199553Abstract: A movable electrical contactor having a surface thereof in slidable contact with a mating conductor, the surface being coated with a composite material in which particles of graphite (C) are dispersed in a matrix of silver (Ag). The coating film is formed by electric plating using a plating liquid of metal silver in the range of 2-100 g/l in concentration, potassium cyanide in the range of 2-250 g/l, potassium hydroxide in the range of 0.5-15 g/l, graphite powder in the range of 1-55 g/l, and a dispersant for dispersing graphite powder into plating liquid in the range of 10-2000 ppm.Type: GrantFiled: October 8, 1991Date of Patent: April 6, 1993Assignee: Fuji Electric Co., Ltd.Inventors: Hisaji Shinohara, Naoshi Uchida, Kiyoshi Kandatsu, Soujun Matsumura, Tadashi Chiba, Shigeharu Miyazaki
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Patent number: 5165529Abstract: A switch comprises a housing having an upper member and a lower member, an actuator disposed in the housing and rockably supported on the upper member, switch means for connecting and disconnecting a movable contact with a stationary contact when the actuator rocks on the upper portion, and a connecting terminal for an external electric wire electrically connected to the switch means. The switch means includes a movable contact element having the movable contact and a support element which rockably supports the movable contact element. At least one of portions contacting each other between the support element and the movable contact element is provided with a clad layer of a high conductive noble metal which extends in the rocking direction at the width less than that of the contacting portions.Type: GrantFiled: December 27, 1989Date of Patent: November 24, 1992Assignee: Jimbo Electric Co., Ltd.Inventor: Shiori Fujiyoshi
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Patent number: 5139890Abstract: There has been provided an electrical component having resistance to oxidation and wear. The component has a copper or copper alloy substrate coated with a relatively thick layer of silver. A thin layer of gold may be deposited on the external surface of the silver coating layer to improve oxidation resistance, lubricity and to serve as a diffusion barrier.Type: GrantFiled: September 30, 1991Date of Patent: August 18, 1992Assignee: Olin CorporationInventors: John G. Cowie, George J. Muench, Julius Fister
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Patent number: 5140114Abstract: An electric contact with a base metal used as a switch wherein the non-welded peripheral portion of the contact is prevented from bow-like bending and from peeling off. The electric contact with a base metal having a contact promoting shape is formed by die forging of a contact material joined to the base metal by resistance welding. The composite contact material is prepared by coating the core material of Ag-oxide contact material with non-oxide contact material. The side of the material in contact with the base metal is of non-oxide contact material. The contact material may be pressed to fill a groove preformed in the base metal, welded to protrusions preformed in the base metal, welded to the bottom of a cut preformed in the base metal, or welded to bottoms of recesses preformed in the base metal.Type: GrantFiled: April 2, 1991Date of Patent: August 18, 1992Assignees: Fuji Electric Co., Ltd., Tokuriki Honten Co., Ltd.Inventors: Mitsuo Sunaga, Kiyoshi Sekiguchi, Hisaji Shinohara, Akihiro Takahashi, Hiroshi Hikita, Takashi Nara, Sadao Sato
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Patent number: 5006674Abstract: A distributor for internal combustion engine having a mica layer fixedly provided, or a mica plate bonded by an adhesive agent, at least at one face of a discharging section of a distributor rotor electrode provided in a distributor rotor, the mica layer containing mica material dispersed in an organic resin. The mica layer or mica plate having a large anti-discharge characteristic can suppress generation of noise radio waves resulting from a discharge.Type: GrantFiled: May 29, 1990Date of Patent: April 9, 1991Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Yutaka Ohashi
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Patent number: 4999464Abstract: A molded case circuit breaker movable contact arm electrically connects with the circuit breaker load terminal requiring only a small diameter auxiliary electrical conducting braid by pivotally arranging the contact arm within its support. The contact arm is nickel-plated prior to attachment of the contact to insure high current circuit interruption withtout damage to the contact or the contact arm.Type: GrantFiled: March 23, 1990Date of Patent: March 12, 1991Assignee: General Electric CompanyInventors: Joseph P. Bellino, David Arnold, Dexter T. O'Brien, Ira B. Goldman
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Patent number: 4922068Abstract: An electrical switch assembly is made with a braided electrical conductor having a densified end which has reduced porosity from the braided wire. Preferably, the densified end is formed by squeezing copper wires with a solder matrix to reduce the air in the densified end so that it has over 95% solids. A solder layer is formed between the densified end and the switch element, preferably by using a foil of silver braze which is melted between the densified end and the switch element. In the preferred method of forming the densified end, the solder and copper are heated and squeezed at pressures in the range of 500-750 pounds under a liquid blanket of material to limit copper oxidation.Type: GrantFiled: May 26, 1988Date of Patent: May 1, 1990Inventor: Edmund R. Bangs
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Patent number: 4733033Abstract: A molded case circuit breaker movable contact arm or carrier electrically connects with the circuit breaker trip unit or load terminal without requiring a flexible electrical conducting braid. The contact carrier is pivotally arranged within a contact carrier support to which the trip unit or load terminal lug is attached. The contact carrier pivot pin is supported on a pair of parallel posts extending from the contact carrier and a spring clip is positioned around the parallel posts and the pivoting end of the contact carrier to promote good electric transport without interfering with the rotational movement of the contact carrier.Type: GrantFiled: December 15, 1986Date of Patent: March 22, 1988Assignee: General Electric CompanyInventors: Robert A. Morris, James M. Mitsch, Irenaeus S. Panus, Yuet-Ying Yu, Roger N. Castonguay
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Patent number: 4714804Abstract: Rotary electrical signal generator includes fixed electric contacts and slider contacts which engage the fixed contacts. To enhance the abrasion resistance and the corrosion resistance, the surface of printed electrodes is coated with an amorphous Ni-P plated layer containing from 15 to 25 atom % of P.Type: GrantFiled: February 10, 1986Date of Patent: December 22, 1987Assignee: Aisin Seiki KabushikikaishaInventors: Keiji Yasuda, Yukihisa Oda, Shigemitsu Hamajima, Masami Ishii, Katsumi Nakanishi, Takayoshi Tsuzuki, Jyou Tsuda
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Patent number: 4707576Abstract: The arc withstanding electrodes in an electric circuit breaker for switching high voltages attain greater mechanical strength and improved arc withstanding capabilities by forming the arc withstanding electrodes of a carbon-fiber-reinforced-graphite material which material is constituted of a graphite matrix which is reinforced by carbon fibers embedded therein. A method for forming the carbon-fiber-reinforced-graphite of the arc electrodes and for affixing the arc electrodes to a metal carrier therefor includes the steps of employing a high-temperature solder based on copper and/or silver, containing at least one carbide-forming element such as, for example, Cr.Type: GrantFiled: May 28, 1986Date of Patent: November 17, 1987Assignee: BBC Brown, Boveri & Co., Ltd.Inventors: Gernot Gessinger, Renata Sebalj, Wolfgang Widl
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Patent number: 4652710Abstract: A mercury switch device comprising a pool of mercury and a plurality of electrical contacts made of or coated with a non-wettable material such as titanium diboride.Type: GrantFiled: April 9, 1986Date of Patent: March 24, 1987Assignee: The United States of America as represented by the United States Department of EnergyInventors: Maurice M. Karnowsky, Frederick G. Yost
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Patent number: 4652705Abstract: An ignition distributor having a radio wave noise suppressing function has a rotor electrode and counter electrodes. At least the cathodic one of the rotor electrode and the counter electrodes is provided at its end with a coating layer of a material which is a mixture of a metal oxide having a high electric resistance and a metal oxide which constitutes a dielectric body stable in a high-temperature atmosphere. The metal oxide having high electric resistance consists essentially of 10 to 50 wt % of Cu.sub.2 O and 90 to 50 wt % of CuO, while the metal oxide constituting the dielectric body essentially consists of 70 to 90 wt % of alumina with respect to the weight of the metal oxide having high electric resistance.Type: GrantFiled: August 20, 1985Date of Patent: March 24, 1987Assignees: Nippondenso Co., Ltd., Toyota Jodosha Kabushiki KaishaInventors: Naotaka Nakamura, Yoshimi Miyamoto, Motokazu Momiyama, Toshiji Tsubai, deceased, Tatsuo Teratani, Nobuyuki Ishihara
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Patent number: 4644115Abstract: A miniature snap action switch comprises a movable spring sheet which is pivotally supported to a common contact member for movement with a snap action into and out of contact with a cooperative fixed contact. The movable spring sheet is plated with a precious metal such as silver, gold, or an alloy of each at a portion to be pivoted to the common contact member as well as at a portion for contact with the fixed contact for improving electrical conductivity at the respective interfaces and at the same time defining on the movable spring sheet a movable contact of extremely reduced thickness. Accordingly, the movable spring sheet can be dispensed with a conventional contact tip of rather bulky configuration to thereby enable the entire contact assembly to be made in a greatly reduced dimensions particularly in the direction of the thickness of the movable spring sheet, resulting a very compact arrangement of the miniature switch.Type: GrantFiled: July 26, 1985Date of Patent: February 17, 1987Assignee: Matsushita Electric Works, Ltd.Inventors: Shoji Nishimori, Takeshi Nishii
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Patent number: 4633050Abstract: This invention relates to electrical devices in which the electrical contact areas are plated with a nickel/indium alloy comprising 0.1-9 percent indium, balance nickel. The nickel/indium alloy layer may be coated with a precious metal such as gold.Type: GrantFiled: March 26, 1985Date of Patent: December 30, 1986Assignee: Allied CorporationInventor: George J. Samuels
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Patent number: 4547640Abstract: An electrical contact structure of a vacuum interrupter wherein a pair of electrical contacts 2 are provided within a vacuum vessel 1 through a pair of contact rods 14 so that one is in contact with the other or away therefrom. The electrical contact 2 comprises a substantially disk-shaped contact body 2b made of high electric conducting metal portions and metallic pipes having a low electric conductivity, and a plurality of major current flowing sections 22 made of metal having a high electric conductivity, penetrated in the contact body 2b in a manner to be penetrated in the direction of the thickness of the contact body 2b and separated from each other.Type: GrantFiled: September 29, 1982Date of Patent: October 15, 1985Assignee: Kabushiki Kaisha MeidenshaInventors: Yoshiyuki Kashiwagi, Takamitsu Sano, Kaoru Kitakizaki
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Patent number: 4516319Abstract: To reduce the breakdown potential magnitude between the output tip surface of an ignition distributor rotor output segment and each of the output terminals of the distributor cap, the rotor output segment is made of a low thermally conductive material 0.1 mm to 1.00 mm thick, and a layer of a silicone dielectric material such as a silicone plate, viz., a plate including at least a sheet of silicone varnish-containing glass cloth, is secured to at least a portion of at least one of the top and bottom surface areas of the rotor output segment.Type: GrantFiled: October 17, 1983Date of Patent: May 14, 1985Assignees: Nissan Motor Co., Ltd., Hitachi, Ltd.Inventors: Masazumi Sone, Iwao Imai, Hiromitsu Nagae
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Patent number: 4513186Abstract: An electrical contact member and method of fabrication which facilitates braze connection of the electrical contact member to the conductive support stem of a vacuum interrupter structure. A high density slug of the contact material is performed. The high density slug is disposed in a powder mass of the contact material which is sintered to form the contact member. A high conductivity component is then infiltrated in the electrical contact member to produce the desired conductivity for the contact member, with the high density portion being easily brazed to a conductive support stem.Type: GrantFiled: December 22, 1982Date of Patent: April 23, 1985Assignee: Westinghouse Electric Corp.Inventor: Robert L. Thomas