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4076652 |
Elastic resistor compositions containing metallic-conductive particles and conductive lubricant particles
Elastic resistor compositions comprising metallic-conductive particles and solid conductive lubricant particles codistributed in a matrix of a curable, elastomer-forming polymer and the cured...
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4074221 |
Epoxy bonded silicon carbide lightning-protection valve
Lightning protection is provided by an electronic valve molded mainly of silicon carbide powder. The manufacturing cost and high reject rate of previous ceramic bonding is greatly reduced by...
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4070197 |
Gas tight silicon carbide body
A gas impermeable hollow silicon carbide body is formed by slip-casting two separate hollow silicon carbide bodies, the two separate bodies are then cemented together by means of a silicon carbide...
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4069083 |
Bonding material and method
A bonding material is disclosed which is stable at high temperature and radiation levels, which may be conductive and which is particularly suited as a couplant to ultrasonically and electrically...
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4053866 |
Electrical resistor with novel termination and method of making same
An electrical resistor and method of making same including a substrate of an electrical insulating material having on a surface thereof a film of a resistance material and a termination film of a...
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4048117 |
Vacuum switch contact materials
A material is described which is useful in electrical current switching devices and is especially adapted to form the contact surface of the electrodes of electrical current switching devices which...
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4028276 |
Pressure-sensitive elastic resistor compositions
Pressure-sensitive compositions adaptable for use as elastic resistors over a wide pressure range, useful as keyboard switches or vehicle-crash sensors, comprising hard, metallic-conductive...
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4008183 |
High temperature anticorrosive molded product
A high temperature anticorrosive molded product produced by hot pressing a mixture comprising 1-10 weight parts of powdery aluminum and 100 weight parts of a powdery composition comprising an...
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4006106 |
Self sealable glassy resistor composition for a resistor sealed spark plug
A self sealable glassy resistor composition for a resistor sealed spark plug consists essentially of 5-40% by weight of at least one of the resistance value stabilizing component selected from the...
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4002940 |
Electrode for a discharge lamp
Electrodes for a discharge lamp having a semispherical fused body to produce a very stable arc. The electrodes can be manufactured inter alia by compressing a mixture of tungsten powder, metal...
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4001145 |
Glassy resistor composition for use in a resistor incorporated spark plug
A glassy resistor composition for use in a resistor incorporated spark plug is prepared by mixing 100 parts by weight of a mixture of 1-40% by weight of at least one of semiconductible oxides of...
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3993602 |
Polycrystalline silicon carbide with increased conductivity
Polycrystalline silicon carbide with increased electrical conductivity at room temperature is produced by shaping a particulate mixture of β-silicon carbide, boron additive, beryllium carbide and...
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3982048 |
Method of making an insulator with a non-linear resistivity coating of glass bonded silicon carbide
This method of making a ceramic insulator with a stress-grading coating comprises applying to a ceramic body a coating material comprising particles of silicon carbide and a binder comprising a...
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3974106 |
Ceramic electrical resistance igniter
A ceramic resistance gas igniter comprised of 10 to 60% by weight of silicon carbide and 40 to 90% by weight of silicon nitride, slicon oxynitride, or silicon aluminum oxynitride, and having a...
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3968057 |
Method for producing a semi-conductor body
A method for producing a semi-conductor body is disclosed. The batch for the body is silicon carbide and reactive alumina. The batch is first dry ball milled with from 1/2 to 2% fatty acid and...
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3965047 |
Electrical resistant fluid-permeable heat generating member and method of producing the same
A fluid-permeable electrically energized heat generating member of a desired shape, such as a rectangular brick, is formed by (1) mixing (a) about 87 to 94 percent by weight of a first material...
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3951870 |
Superconductive transition metal carbonitride fibers and method for the preparation thereof
Fine diameter continuous multifilament superconductor yarns comprising niobium carbonitride may be prepared. The fibers of which the yarn is composed possess a very high transition temperature (T c...
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3950604 |
Heat-shrinkable articles having non-linear electrical resistance characteristics
A polymer composition containing silicon carbide of a critical maximum average particle size can be processed into heat-shrinkable articles possessing nonlinear electrical resistance...
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3926857 |
Electrically conducting material containing silicon carbide in a matrix of silicon nitride
An electrically conducting material is produced by nitriding a mixture of silicon and a component capable of being converted to an electrically conducting phase under the conditions of the...
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3916366 |
Thick film varistor and method of making the same
A thick film varistor comprising a substrate material having a varistor film or material printed thereon. Terminal conductors are electrically connected to the varistor film to terminate the...
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3912668 |
Conductive paint formulations with very low electrical impedance in the Z-direction containing a metal carbide
One or more metallic carbides having the general structure MC in which M is selected from the group consisting of Titanium (Ti), Zirconium (Zr), Niobium (Nb), Hafnium (HF), Tantalum (Ta) and...
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3895219 |
Composite ceramic heating element
An electrical heating element comprised of a mixture of from 10 to 60% by weight of silicon carbide and 40 to 90% by weight of silicon nitride, silicon oxynitride, silicon aluminum oxynitride or...
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3890250 |
Hot pressed silicon nitride containing finely dispersed silicon carbide or silicon aluminum oxynitride
A hot-pressed silicon nitride product containing a finely dispersed silicon carbide mixture is described. The product has very high strength at room temperature as well as high strength at elevated...
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3875434 |
PRESSURE-SENSITIVE SENSOR/LOGIC ASSEMBLY
Disclosed herein is a sensor/logic assembly useful, inter alia, for actuating a vehicular safety device for passenger restraint, the assembly comprising, in cooperation, a non-ohmic...
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3875476 |
IGNITER ELEMENT
A heat-resistant ceramic electric igniter element has a plurality of compositions in a continuous unitary body structure including a central or igniting zone of a composition having a relatively...
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3875477 |
SILICON CARBIDE RESISTANCE IGNITER
A monolithic ceramic resistance igniter of simple configuration is composed essentially of polycrystalline silicon carbide adapted for use in gas and liquid fuel burning systems. As a result of the...
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3864658 |
Electrode for a granular electrical circuit element and method of making same
A ceramic-metal electrode is provided on the granular surface of a block of non-linear resistance material such as silicon carbide. The electrode forms a low resistance electrical contact with...
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3862057 |
MOLDING COMPOUNDS WITH EPOXY RESIN BASE
The invention concerns flowable molding compounds for the manufacture of moldings with defined electrical conductivity, and which moldings contain epoxy compounds of multivalent phenols. Of...
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3859399 |
DENSE COMPOSITE CERAMIC BODIES AND METHOD FOR THEIR PRODUCTION
Hard, dense composite ceramic bodies of titanium diboride, boron carbide, silicon carbide and silicon, having a wide variety of utilities, are produced by forming a mixture of titanium diboride,...
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3856567 |
ELECTRODE FOR POROUS CERAMIC AND METHOD OF MAKING SAME
A porous ceramic is provided on its surface with an electrode comprising a titanium oxide and a more readily reduceable metal oxide. Also disclosed is a method for applying the above electrode. The...
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3849145 |
CORDIERITE BINDER COMPOSITION
Lightning arrester resistance material is composed of silicon carbide particles and a binder therefor composed of cordierite formed of a fired mixture of cordierite-forming glass material and...
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3828161 |
FOR HEATING FLUIDS BY MEANS OF GAS PERMEABLE HEAT GENERATING MEMBERS
Apparatus for heating a fluid has first and second heating chambers each having an inlet and an outlet. At least one passage connects the first heating chamber to its inlet and a fluid-permeable...
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3723359 |
CERMET POWDERS
A metallurgical method for making homogeneous powders characterized by ultra-fine particle size typically in the range .01 - .1 microns. First, dry blend starting materials containing a mixture of...
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3713865 |
COMPOSITE PRODUCT AND METHOD OF MAKING SAME
A composite product and method of producing same having a substrate or matrix comprising carbonized fibers in which a metallic salt solution consisting of a soluble metal salt selected from a group...
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3691346 |
ELECTRICALLY HEATED CATALYTIC AIR PURIFIER
The invention relates to air treatment equipment for the removal of impurities from the air such as odorous substances and bacterial spores. The equipment includes a support member made of silicon...
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3654432 |
ELECTRICALLY HEATED CATALYTIC AIR PURIFIER
The invention relates to air-treatment equipment for removing impurities from the air, particularly substances having an odor or taste and bacterial spores. The equipment includes a heating...
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3622901 |
NEGATIVE-TEMPERATURE-COEFFICIENT RESISTORS IN THE FORM OF THIN LAYERS AND METHOD OF MANUFACTURING THE SAME
A negative-temperature-coefficient resistor formed by applying a thin semiconductive silicon carbide layer to a substrate.
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3607790 |
RESISTANCE MATERIAL AND METHOD OF MAKING
Lightning-arrester resistance material is composed of silicon carbide particles and a binder therefor composed of cordierite formed of a fired mixture of cordierite-forming glass material and...
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3607056 |
PREPARATION OF A SUPERCONDUCTING SCANDIUM-CARBON PHASE
A method of preparing a superconducting body-centered cubic scandium carbide phase having the approximate composition Sc 13 C 10 which comprises arc-melting scandium and carbon in the presence of...
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3571672 |
SWITCHING DEVICE INCLUDING SILICON AND CARBON
A switching device for an electrical circuit including a semiconductor material and electrodes in contact therewith, wherein the semiconductor material has a high electrical resistance, wherein the...
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3527626 |
SILICON CARBIDE LUMINESCENT MATERIALS
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3523044 |
METHOD OF CARBIDING TANTALUM OR TANTALUM ALLOY AND FILAMENT
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3509072 |
NON-LINEAR,VOLTAGE VARIABLE ELECTRICAL RESISTOR
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3492153 |
SILICON CARBIDE-ALUMINUM NITRIDE REFRACTORY COMPOSITE
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3459566 |
PROCESS FOR PRODUCING SILICON CARBIDE ARTICLES EMPLOYING PYROMELLITIC DIANHYDRIDE-LIMONENE DIOXIDE MIXTURE
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3459915 |
ELECTRICAL DISCHARGE MACHINING ELECTRODE COMPRISING TUNGSTEN PARTICLES IN A SILVER MATRIX
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3454345 |
FUEL IGNITING AND FLAME SENSING RESISTOR WITH FUEL FEED CONTROL
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3408312 |
Electrically conductive cermet compositions
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3404202 |
Electric resistance heater and method of making
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3404031 |
Emissive coating
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