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3960421 |
Method of manufacturing a non-thermally emitting electrode for an electric discharge tube
Monoatomic layers to reduce the work function of photocathodes, secondary emission electrodes and field emission electrodes are obtained by surface segregation as a result of a thermal treatment...
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3958848 |
Method of fabricating field desorption ion source
A gas permeable electrode is arranged to project into an evacuated space with the vacuum side of the electrode coated with a gas impervious material except at the tip of the electrode. The other...
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3947716 |
Field emission tip and process for making same
A field emission tip on which a metal adsorbate has been selectively deposited, and a method by which it may be manufactured. In a vacuum, a clean field emission tip is subjected to heating pulses...
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4007431 |
Cathode construction for long life lasers
A laser gyro is disclosed having a long life cathode located therein. The laser gyro comprises a block having a plurality of lasing tubes bored therethrough and being angularly disposed to each...
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3922179 |
Method of coating a chromium-nickel component with a chromium oxide-containing layer, and component having such a layer
A chromium-nickel component destined for prolonged heating in a vacuum, for example a part of a cathode, a grid or an anode, is heated in air, after cleaning in a hydrogen atmosphere, at...
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3919751 |
Method of making fast warm up picture tube cathode cap having high heat emissivity surface on the interior thereof
Performance of fast warm up cathodes can be improved by providing a black heat radiating surface on the interior of the cathode cap. A particular material can be nichrome which is a nickel chromium...
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3911313 |
Electrode for arc discharge lamp
An electrode for a high pressure sodium arc discharge lamp comprises a refractory metal tube, a portion of which contains electron emissive material. The ends of said portion are crimped to provide...
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3911309 |
Electrode comprising a porous sintered body
A sintered electrode adapted to operate with an electric discharge arc apded to an outer surface thereof as one of the electrode components of high temperature discharge lamps such as gaseous and...
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3908252 |
Discharge tube provided with an electrode comprising nickel and aluminum
The invention relates to a gas and/or vapour discharge tube provided with an electrode consisting of several metal layers running parallel to one another. According to the invention the electrode...
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3884539 |
Method of making a multialkali electron emissive layer
An S-20 response multialkali photocathode is produced by exposing a layer of antimony to activating vapors of potassium, sodium, and cesium. In one method the antimony layer is exposed to cesium at...
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3883765 |
HIGH-PERFORMANCE EMITTER FOR THERMOELECTRONIC DIODES
A high-performance emitter for thermoelectronic diodes, and a method for manufacturing said emitter. The emitter comprises a fissile fuel member 2 coated with at least one refractory metal emitting...
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3860310 |
METHOD OF FABRICATING A GAS LASER
A cold cathode gas laser, in which the cathode is rendered chemically clean before being oxidized, and in which gas pressure and volume and cathode current density are selected to provide cathode...
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3858955 |
METHOD OF MAKING A III-V COMPOUND ELECTRON-EMISSIVE CATHODE
A III-V compound cathode is produced by exposing the cathode to cesium or cesium and oxygen, then exposing it to an increasing concentration of cesium while heating to about 150°C. The cathode is...
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3842469 |
METHOD OF ACTIVATING ELECTRON EMISSIVE ELECTRODES
A method of treating metal oxide semiconductor electrodes of the type utilized in fluorescent lamps to increase their electron emissivity and to lower their ignition voltage. The electrodes are...
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3842309 |
METHOD OF MANUFACTURING A STORAGE CATHODE AND CATHODE MANUFACTURED BY SAID METHOD
A method of manufacturing a storage cathode comprising the steps of forming a first layer of electron emissive material in a holder, said layer comprising a loose mixture of coarse and fine...
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3836393 |
PROCESS FOR APPLYING STRESS-BALANCED COATING COMPOSITE TO DIELECTRIC SURFACE OF GAS DISCHARGE DEVICE
There is disclosed a process for applying a stress-balanced coating composite to each dielectric surface of a multiple gaseous discharge display/memory panel having an electrical memory and capable...
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3816079 |
METHOD OF PRODUCING GRID ELECTRODES FOR ELECTRONIC DISCHARGE VESSELS
A grid electrode for an electronic discharge vessel wherein the wire which forms the grid is first covered with a layer of an intermetallic compound comprising a high-melting metal such as...
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3807827 |
MEANS AND METHOD OF PROCESSING RESERVOIRLESS THERMIONIC CONVERTERS
Low temperature radioisotopic thermionic converter having a construction wherein the converter adsorption area to vapor volume ratio is sufficiently high at the converter's operating pressure to...
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3792513 |
QUICK-HEATING IMPREGNATED PLANAR CATHODE AND METHOD OF CONSTRUCTION
A quick-heating planar cathode employs a disk of fine mesh wire of refractory metal around which is bonded or sintered a porous layer of tungsten particles impregnated with electron-emissive...
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3783325 |
FIELD EFFECT ELECTRON GUN HAVING AT LEAST A MILLION EMITTING FIBERS PER SQUARE CENTIMETER
An electron gun uses a field effect emitter in a vacuum tube, providing the dvantages of cold cathode emission at atmospheric temperature in addition to a simplified control system. Temperature...
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3743879 |
COLD CATHODE DISPLAY PANEL HAVING A MULTIPLICITY OF GAS CELLS
A flat display panel comprising a plurality of gas-filled light-producing cells, each having at least two electrodes for energizing the cell. The panel includes various structural features...
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3722045 |
METHODS OF IMPROVING ADHERENCE OF EMISSIVE MATERIAL IN THERMIONIC CATHODES
An application of metal particles comprised substantially of nickel to a nickel containing cathode substrate is followed by the application of potentially emissive materials comprised of nickel...
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3720985 |
METHOD OF IMPROVING ADHERENCE OF EMISSIVE MATERIAL IN THERMIONIC CATHODES
An application of dendritic nickel particles to a nickel containing cathode substrate to form a porous nickel is filled with potentially emissive material in one or more alternate spray passes. The...
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3671792 |
FAST WARM-UP INDIRECTLY HEATED CATHODE STRUCTURE
A tungsten heater, covered with a thin alumina layer (about 1 mil), is potted inside a molybdenum cathode cup in a sintered mass formed from a mixture of fine particles (of the order of 1-5...
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3668457 |
BRAZING ALLOY FOR BONDING THERMIONIC CATHODE TO SUPPORT
A thermionic cathode comprising a thermionic emissive material consisting essentially of a metal boride, a support consisting essentially of a refractory metal which is reactive with the metal...
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3653883 |
METHOD OF FABRICATING A POROUS TUNGSTEN BODY FOR A DISPENSER CATHODE
A method comprising A. dissolving tungsten trioxide or molybdenum trioxide in a solvent containing water and at least one of morpholine, ethylene diamine, tetraethylene pentamine, triethylene...
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3629916 |
MAKING ALKALI METAL ALLOYS FOR CATHODE LAMPS
A type of spectral source lamp has a hollow cup-shaped cathode, the interior of which is coated with the spectrally emitting element or elements. A technique for forming such a coating of an alloy...
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3623136 |
LIGHT-SOURCE LAMP FOR ATOMIC LIGHT-ABSORPTION ANALYSIS
A light source lamp for atomic light-absorption analysis comprising a structure constituted by a molded body of fine metal wires having a relatively high-melting-point which are mechanically...
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3551198 |
METHOD OF MANUFACTURING AN IMPREGNATED TUNGSTEN DISPENSER CATHODE
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3538570 |
THERMIONIC DISPENSER CATHODE
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3535757 |
METHOD FOR MAKING CATHODE ASSEMBLY FOR ELECTRON TUBE
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3534218 |
ELECTRON EMITTING CATHODES FOR IRRADIATION MACHINES
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3528156 |
METHOD OF MANUFACTURING HEATED CATHODE
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3525135 |
THERMIONIC CATHODE
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3510190 |
METHOD OF TREATING AN ELECTRODE,OF WHICH AT LEAST ONE PORTION CONTAINS THORIUM OXIDE IN ITS SURFACE
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3458913 |
SUPPLY CATHODE FOR ELECTRICAL DISCHARGE VESSELS AND METHOD FOR ITS PRODUCTION
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3454816 |
INDIRECTLY HEATED DISPENSER CATHODE FOR ELECTRIC DISCHARGE TUBE
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3432900 |
METHOD OF MAKING A PENCIL TYPE INDIRECTLY HEATED CATHODE
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3425111 |
METHOD OF MAKING CATHODES BY NEUTRON BOMBARDMENT
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3400294 |
Heated cathode and method of manufacture
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3383542 |
Assembly of electrodes with aligned grid wires for electron discharge devices
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3325281 |
Method of producing sintered electrodes
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3311969 |
Methods of making sheathed electric heating units
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3309302 |
Method of preparing an electron tube including sputtering a suboxide of titanium on dielectric components thereof
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3277313 |
Solid state quantum mechanical tunneling apparatus
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3262814 |
Method for coating an indirectly heated cathode
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3257703 |
Composite electrode materials, articles made therefrom and methods of making the same
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3238596 |
Method of fabricating a matrix cathode
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3201639 |
Thermionic dispenser cathode
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3186786 |
Method for processing oxide coated cathodes
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