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7115825 Low cost key actuators and other switching device actuators manufactured from conductive loaded resin-based materials  
Key actuators and other switching devices are formed of a conductive loaded resin-based material. The conductive loaded resin-based material comprises micron conductive powder(s), conductive...
7022213 Gas sensor and its method of manufacture  
The invention relates to a gas sensor and its method of manufacture. Electrochemical gas sensors usually comprise an external housing, which acts as a reservoir for electrolyte; a wick to keep...
6649516 Method for manufacturing a composite member from a porous substrate by selectively infiltrating conductive material into the substrate to form via and wiring regions  
Disclosed is a method for manufacturing a composite member comprising a porous substrate, a via, and a wiring. The method comprises exposing a first region and a second region in the porous...
6210809 Contact material  
The contact material of the present invention comprises: an anti-arcing constituent consisting of at least one TiC, V and VC of which the content is 30.about.70 volume % and whose mean particle...
6027821 Contact material for vacuum interrupter and method for producing the same  
A contact material for a vacuum interrupter including, a conductive component including at least Cu, and an arc-proof component including at least one selected from the group consisting of carbides...
5853083 Contact material for a vacuum circuit breaker and a method for manufacturing the same  
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...
5701993 Porosity-free electrical contact material, pressure cast method and apparatus  
A 100% dense, porosity free copper-chromium contact has been prepared in which deleterious porosity has been eliminated. This copper-chromium contact has been produced by pressurizing liquid copper...
5422452 Movable electrical potentiometer contact assembly  
A movable electrical contact assembly forms a potentiometer and includes at least one strip of electrically conductive material having a significant resistance, a conductive rolling contact device...
5420384 Contact material for a vacuum interrupter  
A contact material for a vacuum interrupter includes: (a) from 25 to 70% by volume of a highly conductive component selected from the group consisting of Ag, Cu and combinations thereof, and (b)...
5112236 Electrical contact  
An electrical contact comprising a male element and a female element in which the male element is mounted for sliding with a tight fit, an air chamber being formed between an end of the male...
4892986 Vacuum circuit breaker  
An electrode of a vacuum circuit breaker includes a support electrode, an auxiliary support electrode of Co soldered to the support electrode, and an electric contact portion composed of a sintered...
4790968 Process for producing pressure-sensitive electroconductive sheet  
A process (I), for producing a pressure-sensitive electroconductive sheet by (A), forming conductive circuits or electrodes in a flexible porous substrate and (B), applying, followed by curing a...
4777335 Contact forming material for a vacuum valve  
A contact forming material for a vacuum valve or vacuum circuit breaker comprising (a) a conductive material consisting of copper and/or silver, and (b) an arc-proof material consisting of...
4707576 Arcing contact tip and method for producing such an arcing contact tip or a comparable component  
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...
4686338 Contact electrode material for vacuum interrupter and method of manufacturing the same  
A novel contact electrode material for vacuum interrupters is disclosed, by which the chopping current value inherent in contact material can be reduced so that it is possible to stably interrupt...
4640994 Electronic apparatus with a flat panel keyboard unit  
A flat panel keyboard unit comprises a first flexible member having a key symbol printed thereon, a second flexible member having electrodes aligned with the kay symbol, a pressure sensitive...
4551596 Surge-absorberless vacuum circuit interrupter  
A small-sized, light weighted vacuum circuit interrupter is provided. The interrupter comprises a vacuum container confining a vacuum atmosphere of a pressure less than 10 -5 mmHg and a pair of...
4503010 Process of producing a compound material of chromium and copper  
In the method according to the invention, Cr powder is poured into a degased mold, which can be made of graphite. On this Cr powder a piece of low-oxygen copper is placed. Subsequently, the mold is...
4468543 Ignition distributor  
An ignition distributor is disclosed for use in an internal combustion engine including a plurality of cylinders each fitted with an ignition plug. The distributor includes a plurality of fixed...
4430124 Vacuum type breaker contact material of copper infiltrated tungsten  
This invention provides a vacuum type breaker contact material prepared by infiltrating copper into a sintered tungsten matrix, wherein elementary particle size and the growth of the particle size...
4424429 Contactor for vacuum type circuit interrupter  
A contactor for a vacuum type circuit interrupter having a pair of detachable electrodes in a vacuum chamber comprises an electrode obtained by melting or sintering a composition of an electric...
4399339 Electrical contact  
In one aspect of the invention, a sintered electrical contact having a contacting surface defining a plurality of voids is disclosed. The voids contain a corrosion retarding fluid which passes onto...
4372783 Electrical contact composition for a vacuum type circuit interrupter  
A vacuum type circuit interrupter contact comprises a principal phase material selected from the group consisting of copper and solid solutions of chromium copper, iron copper and cobalt copper,...
4311769 Mercury contact  
The mercury contact comprises a solid metal base of antimony, wetted with mercury. The method of manufacturing the mercury contact includes preparing the solid metal base by electrolytic deposition...
4180715 Vital movable electricl contact arrangement  
A fail-safe multiple transfer contact assembly including a plurality of front, back and heel contact elements. The contact elements include elongated leaf spring members which are fixed to a molded...
4166201 Ignition distributor electrode for suppressing radio frequency interference  
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...
4162160 Electrical contact material and method for making the same  
An electrical contact material which is particularly well suited for use in circuit breaker switches consisting essentially of silver in the amount of about 20% to 50% by weight, nickel in the...
4153755 Impregnated sintered material for electrical contacts and method for its production  
An impregnated sintered material for making electrical contact members which have a low fusing force and little burning in which a powder mixture of W, Ag and/or Cu, a wetting promoting metal, and...
4137076 Electrical contact material of TiC, WC and silver  
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...
4088480 Process for preparing refractory metal-silver-cadmium alloys  
This application describes a method of preparing cadmium-containing refractory metal-silver alloys by using a liquid phase sintering technique featuring a cadmium vapor over-pressure. The resultant...
4067379 Method for the manufacture of multilayered contacts for medium-voltage vacuum power circuit breakers  
A method for producing multilayered contacts for medium-voltage vacuum power circuit breakers is provided comprising impregnating under vacuum with oxygen-free, liquid copper, a composite body of...
4032301 Composite metal as a contact material for vacuum switches  
A contact material for vacuum switches comprising a composite inclusion metal of at least two metal components in which a first component has an electric conductivity of at least 10 m/ohm mm 2 ,...
4008520 Contact member and method of manufacture  
A contact member for high electrical loads has a plurality of component parts. One of these parts is made of a non-welding material resistant to burn-off and another part is made of a solderable...
3985512 Telluride containing impregnated electric contact material  
Electric contact material having good solderability, consists of a porous matrix of sintered powder particles of a refractory metal, such as tungsten or molybdenum, with its pores impregnated with...
3864827 METHOD FOR MAKING AN ELECTRIC CONTACT BY POWDER METALLURGY AND THE RESULTING CONTACT  
A layer of refractory metal or metal compound powder which is mixed with a low melting temperature metal or metal alloy powder, and a layer of low temperature melting metal or metal alloy powder,...
3863337 POWDER METALLURGY METHOD FOR MAKING AN ELECTRIC CONTACT AND THE RESULTING CONTACT  
A layer of refractory metal or metal compound powder and a layer of low temperature melting metal or metal alloy powder are arranged together in the cavity of a compacting die and consolidated...
3852879 ELECTRICAL CONTACT MATERIAL  
A reinforced metallic composite material suitable for use as an electrical contact material wherein refractory metal wires having a diameter of about 1 to about 50 mils are substantially surrounded...
3829648 MAKE AND BREAK ELECTRICAL CONTACT  
Electrical conducting paths of a metallic composite, which includes an electrically conductive material and a refractory metal, are formed on an insulative base in a predetermined pattern.
3828428 MATRIX-TYPE ELECTRODES HAVING BRAZE-PENETRATION BARRIER  
A braze-penetration barrier is provided for a sintered and infiltrated matrix-type of electrode or contact, so that, in effect, two joints are provided, one joint being provided between the...
3819897 VACUUM SWITCH WITH CONTACT MATERIAL CONTAINING A MINOR PERCENTAGE OF ALUMINUM  
A vacuum switch having a pair of contact elements which are movable together characterized by the material of the contact elements containing an alloy of a metal with a high electrical...
3818163 VACUUM TYPE CIRCUIT INTERRUPTING DEVICE WITH CONTACTS OF INFILTRATED MATRIX MATERIAL  
The specification discloses an electric circuit interrupting device in which the contacts are enclosed in an evacuated enclosure, and in which the contact material comprises a matrix of a low...
3805000 VACUUM INTERRUPTER AND METHODS OF MAKING CONTACTS THEREFOR  
An electrical contact for a vacuum switch comprising copper containing boron. Bismuth may also be advantageously added.
3778576 TUNGSTEN ELECTRICAL SWITCHING CONTACTS  
A tungsten contact disc is treated by burnishing so as to smooth and compact the contact surface and remove the surface-crazed metals and oxides, while simultaneously filling the surface pores with...
3686456 CONTACT STRUCTURE FOR AN ELECTRIC CIRCUIT BREAKER  
Discloses a circuit breaker with a pair of contacts that are located in a fluid medium and are relatively movable into and out of engagement with each other. Each of these contacts comprises a...
3663777 REED SWITCH  
A switching device such as a reed switch having moving contacts whose outer contacting surface consists of an outer layer of metal such as ruthenium or rhodium having thickness of from 0.1 to 5.0...
3610859 COMPOSITE CONTACT STRUCTURE FOR VACUUM-TYPE CIRCUIT INTERRUPTERS  
A composite contact for a vacuum-type circuit interrupter is formed from a porous sintered refractory structure, such as tungsten or molybdenum, infiltrated with an impregnating metal having a...
3592987 GETTERING ARRANGEMENTS FOR VACUUM-TYPE CIRCUIT INTERRUPTERS COMPRISING FIBERS OF GETTERING MATERIAL EMBEDDED IN A MATRIX OF MATERIAL OF GOOD CONDUCTIVITY  
To provide a gettering action in relatively high-power vacuum-type circuit interrupters, an active gettering material, such as titanium, tantalum, columbium, zirconium, tungsten or molybdenum is...
3514559 VACUUM TYPE CIRCUIT INTERRUPTER  
3511953 SILVER RHENIUM ELECTRIC CONTACTS  
3433917 FAIL-SAFE VITAL RELAY CONTACT ARRANGEMENT  
Matches 1 - 50 out of 59 1 2 >