Abstract: The present invention discloses an electric contact, comprising a substrate with the surface thereof coated with a nano-diamond film heavily doped with positive trivalent or positive pentavalent elements; the present invention discloses a fabrication method of the above electric contact, comprising the following steps of: (1) fabricating a substrate of the electric contact; (2) performing auxiliary nucleation processing on the electric contact substrate; (3) depositing a nano-diamond film heavily doped with positive trivalent or positive pentavalent elements on the surface of the electric contact substrate.

Abstract: A stationary contact for a rotary switch is provided. The stationary contact includes a connection portion for connecting to a conductor and a first portion being a contact portion for connecting the stationary contact to a rotary contact. The stationary contact also includes a second portion being a support portion for supporting the stationary contact to a switch body. The contact portion and support portion extend in the same angle from the connection portion. A method of mounting a rotary switch is also provided.

Abstract: Disclosed herein is a touch panel including an electrode pattern configured of a combination of unit patterns in which a hole is formed at an intersection region between sides.

Abstract: A contact element for making an electric contact to a contact member for enabling an electric current to flow between the contact element and the contact member. The contact element includes a body having at least one contact surface thereof coated with a contact layer to be applied against the contact member. The contact layer includes a nanocomposite film having a matrix and crystallites of nano-size embedded therein. Portions of the matrix separating adjacent the crystallites of the nanocomposite film have a thickness providing the matrix and hence the film with an electrical conductivity determined by a substantially two-dimensional character of the matrix.

Abstract: The automobile emergency stop system includes a knife switch that is wired to one of the wires running to a fuel pump of a vehicle. The system is designed for use with a parking brake such that upon breaking the circuit, electrical flow to the fuel pump ceases and the engine stops. The system is designed to close the circuit when the parking brake is not lifted. The system is adapted for all types of parking brakes, and includes hand actuated or foot actuated parking brakes. The system is designed for use as an anti-theft measure as well as a safety measure for a computer controlled engine that faults and accelerates out of control.

Abstract: A device for controlling the flow of electric current is provided. The device comprises a first conductor as thin film form; a second conductor switchably coupled to the first conductor to alternate between an electrically connected state with the first conductor and an electrically disconnected state with the first conductor. At least one conductor further comprises an electrical contact, the electrical contact comprising a solid matrix comprising a plurality of pores; and a filler material disposed within at least a portion of the plurality of pores. The filler material has a melting point of less than about 575 K. A method to make an electrical contact is provided. The method includes the steps of: providing a substrate; providing a plurality of pores on the substrate; and disposing a filler material within at least a portion of the plurality of pores. The filler material has a melting point of less than about 575 K.

Abstract: A contact element for making an electric contact to a contact member for enabling an electric current to flow between the contact element and the contact member includes a body having at least one contact surface thereof coated with a contact layer to be applied against the contact member. The contact layer includes a nanocomposite film having a matrix of amorphous carbon and crystallites of nano-size, i.e. with dimensions in the range of 1-100 nm, of at least one metal carbide embedded therein.

Abstract: 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.

Abstract: A reed switch has a contact surface composed of three layers of metal applied to the contacts of the reed switch. The three layers comprise first a layer of titanium of approximately 15 to 150 micro inches, second a layer of molybdenum of 15 to 150 micro inches, and finally a contact layer of 5 to 20 micro inches of ruthenium, or other platinum group metal or alloy. The layers may be applied by any suitable methods, for example by sputtering.

Abstract: A contact element for making an electric contact to a contact member for enabling an electric current to flow between the contact element and the contact member includes a body having at least one contact surface thereof coated with a contact layer to be applied against the contact member. The contact layer includes a nanocomposite film having a matrix of amorphous carbon and crystallites of nano-size, i.e. with dimensions in the range of 1-100 nm, of at least one metal carbide embedded therein.

Abstract: The invention provides a material for sliding contacts that is suitable for a small-sized DC motor used in recent downsized CD players and is excellent in durability. A material for sliding contacts used in a commutator of a small-sized DC motor that consists essentially of 0.01 to 3.0% Ni by weight, 0.01 to 6.0% ZnO by weight and/or 0.01 to 3.0% MgO by weight, furthermore, in some cases, 0.01 to 5.0% Cu by weight, and the balance Ag, in which Ni metal particles, ZnO particles or MgO particles are dispersed in the matrix of Ag.

Abstract: Interrupting and chopping characteristics of a Cu--Cr contact alloy are improved by rounding Cr particles to be spherical in the alloy. The Cr particles are rounded in the alloy by sintering raw Cr powder particles having an average particle diameter of less than 100 .mu.m at a temperature of 1,100.degree. C. or higher with Cu powder, or by sintering raw Cr powder particles having an average particle diameter of 100 to 150 .mu.m at a temperature of 1,200.degree. C. or higher with Cu powder.

Abstract: A contact includes a silver contact base, an intermediate silver layer and a solder in the form of a platelet being provisionally fastened or tacked to the intermediate silver layer prior to an actual soldering operation. The silver contact base is soldered onto a contact carrier by the intermediate silver layer and the solder platelet. A method for making a contact includes pressing an intermediate silver layer onto a silver contact base, then provisionally fastening or tacking a solder in the form of a platelet to the intermediate silver layer and subsequently placing a contact carrier on the solder platelet and soldering the contact carrier to the solder platelet.

Abstract: An electrical contact element having a core part made of an iron/nickel alloy and a gold/tin alloy applied to a portion of the core part which serves as a solderable connection part. The gold/tin alloy has a tin content of from about 10 to about 40% by weight and an adhesive layer, formed of a silver/tin alloy and containing about 10 to 50% by weight tin, is located between the core part and the gold/tin alloy.

Abstract: 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.

Abstract: An electrical contact assembly includes a contact, a contact support integrally connected to a first surface of the contact, and an insert disposed proximate a second, arc-supporting surface of the contact for stabilizing an electrical arc. In one embodiment of the invention the insert comprises an electrically insulating material inset in the arc-supporting surface and forming a metal-insulator boundary therewith. In another embodiment of the invention, the insert comprises a material having a relatively higher electrical resistivity than the contact, and disposed inside the contact so as to leave an integral metal current path from the arc supporting surface of the contact to the contact support, substantially through the center of the contact.

Abstract: Contact material for vacuum circuit breaker according to the present invention contains (1) copper, (2) molybdenum, and (3) niobium or tantalum.

Abstract: To permit direct bonding of a composite electric contact-and-bonding material to a carrier, such as a reed, magnetic strip, or the like, by thermo-electric heating, the side of the contact-and-bonding material is formed with projections, preferably projecting ridges, ribs, or beads, and a bonding or solder material in wire form is adhered, by rolling on to the valley between the projecting ridges, the bonding or soldering material leaving space free between adjacent ridges or ribs and not filling the entire recess, but projecting outwardly at least as far as the projections or ridges, and preferably slightly therebeyond. The soldering or bonding wire may have round or polygonal, preferably triangular cross section with a pointed tip extending outwardly to provide for concentration of heat upon resistance heating the contact material against the carrier strip.

Abstract: A new type of electrical contact is described which has reduced erosion and sticking failures and has reduced material costs. The electrical contact is particularly suitable for sealed electrical contacts such as in sealed remreed contacts.

Abstract: An ignition distributor for an internal combustion engine is provided with a novel rotor electrode which substantially reduces radio frequency interference generated by spark discharges across the rotor gap. At least the tip segment of the rotor electrode is formed of a composite material consisting of a first phase of fibers of a dielectric material interspersed with a second phase of a conductive material. In operation, dielectric fibers protrude from the conductive phase into the gap promoting ionization therein so that electrical discharge occurs at voltages where radio frequency signal production is substantially suppressed.

Abstract: An electrical contact material comprising silver, bismuth oxide and tin oxide with or without tin metal, wherein the amounts of the bismuth and the tin on the basis of the sum weight of the metals in both the metal component and in the metal oxide component are 1.5 to 6 weight percent and 0.1 to 6 weight percent, respectively. This electrical contact material has high resistance to both welding and arc erosion. An advantageous method of making the electrical contact material comprises preparing a metal alloy composed of all the above metals in the above weight ratio and internally oxidizing the bismuth completely in the alloy after shaping the alloy to a desired electrical contact material shape or after crushing the alloy to scaly flakes.

Abstract: To provide low contact resistance, long life, and resistance against tarnishing under corrosive, particularly sulfur atmospheres, a substrate carrier has a layer of palladium applied thereto, of a thickness between 0.5 and 5 .mu.m, preferably between 1 and 3 .mu.m, to which a coating of gold is applied which is porous and has a thickness of only between 0.05 .mu.m and 0.1 .mu.m; the porous gold coating forms islands of gold on the palladium which, in use and as the terminal is wiped against a counter element, smears over the palladium, thus effectively covering the palladium, preventing tarnishing, and maintaining low contact resistance throughout the useful life of the terminal element.

Abstract: An electrical contact suitable for use in high-current switching or circuit breaking, comprising a mixture of silver or copper with an alloy of tungsten carbide and titanium carbide. The contact material preferably uses from about 10% to about 90% silver by weight, the remainder being (WTi)C alloy, and preferably the alloy component comprises from about 35% to about 50% of WC, the remainder of the alloy being TiC. The contact is preferably made by a powder metallurgical process, and provides not only good impact resistance, weld resistance and erosion resistance but, even more importantly, provides low contact resistance, i.e. low electrical resistance when current flows through the closed contacts even after repeated cycling, as shown by the low temperature rise of the contact in use.

Abstract: To reduce costs and permit use of a smaller amount of noble metals in nobel metal contacts, a common metal contact material which forms, in an oxygen-containing atmosphere or in air, non-porous insulating oxides, is coated with a porous noble metal or noble metal alloy cover layer, the pores or regions not covered by the noble metal or nobel metal alloy being permitted to oxidize to form a protective common metal contact material oxide, the noble metal regions in contact with the underlying contact material itself providing for the electrical connection. Preferably, the porous cover layer has a thickness of between about 0.1 to 0.2 .mu.m, and the contact material, separately or applied to a carrier, has a thickness of between 2 to 100 .mu.m, preferably about 10 .mu.

Abstract: A distributor constructed by providing a silicon coating on a surface of a rotor brush thereof. Only the end surface of the rotor brush is coated, employing an ion-plating coating method.

Abstract: A printed wiring board for a keyboard switch assembly for electronic apparatus, such as electronic calculators, comprising a self-supporting insulative board having a plurality of elongated connectors on one surface thereof, at least some of the conductors having terminal portions for cooperating with switch elements. A layer of insulating material covers the one surface of the board and the conductors excluding the terminal portions. Each of the terminal portions has a coating of conductive ink thereon and a jumper element also formed of conductive ink is coated on the insulating layer crossing at least one of the conductors embedded therein and joining at least two of the terminal portion coatings. The conductive ink is preferably a noble-metal filled resin compound, such as silver epoxy, screen printed onto the insulating layer and terminal portions.

Abstract: A vacuum-type circuit interrupter rated to interrupt currents of 30,000 amperes r.m.s. and highercomprises a pair of separable contacts having arcing portions between which arcs are formed upon disengagement of said contacts. These arcing portions are of a material consisting essentially of beryllium formed from a vacuum-cast ingot that has been subjected to hot working by extrusion to produce a microstructure characterized by grains much smaller on the average than the grains of the as-cast ingot.

Abstract: A material for use in making electrical contacts is produced in a powder form suitable for later processing into electrical contacts by standard metallurgical techniques. The material consists of a first metal, such as silver, and the oxide of a second metal, such as cadmium, added to the first metal in a proportion up to the limits of solubility of the second metal in the first metal. An oxide of a third metal having a low electronic work function level, such as lithium oxide, is added and uniformly distributed on the surfaces of the powder particles by precipitation. A fourth metal, such as tellurium, that is insoluble in the first metal is also added to provide selected characteristics.

Abstract: A material for use in making electrical contacts is produced in a powder form suitable for later processing into electrical contacts by standard metallurgical techniques. The material consists of a first metal, such as silver, and the oxide of a second metal, such as cadmium, added to the first metal in a proportion up to the limits of solubility of the second metal in the first metal. An oxide of a third metal having a low electronic work function level, such as lithium oxide, is added and uniformly distributed on the surfaces of the powder particles by precipitation. A fourth metal, such as tellurium, that is insoluble in the first metal is also added to provide selected characteristics.