Matches 101 - 150 out of 268 < 1 2 3 4 5 6 >
Match Document Document Title
5587093 Safe potential arc channel enhanced arc head  
A gas ionizable to produce a plasma is introduced into a arc head and a plasma discharge is initiated at voltages less than 50 V between a high resistance helix, impregnated with low work function...
5573682 Plasma spray nozzle with low overspray and collimated flow  
An improved nozzle for reducing overspray in high temperature supersonic plasma spray devices comprises a body defining an internal passageway having an upstream end and a downstream end through...
5562841 Methods and apparatus for treating a work surface  
A work surface, e.g. an integrated circuit, is treated with a plasma jet. The work surface is shielded from an ambient medium by a shielding gas jet directed to create a shielded zone around the...
5556558 Plasma jet converging system  
Plasma jets are converged in encircling relationship about a common axis along which a reactant stream is introduced. The reactant stream is confined by the converging and confining plasma jets the...
5556560 Welding assembly for feeding powdered filler material into a torch  
An assembly suited for feeding a powderized filler material in plasma welding. The invention is based on feeding the filler material flow first along a first channel, which is next divided into two...
5539176 Method and apparatus of synthesizing diamond in vapor phase  
A DC plasma jet method enables us to synthesize diamond at a high speed by spraying an activated carbon-containing gas as a plasma jet to a substrate. Despite the high speed deposition, the method...
5528010 Method and apparatus for initiating electric arc spraying  
A method and apparatus for initiating arc spraying is disclosed. The invention includes feeding the wires to an arc at a predetermined rate, for a predetermined length of time. Thereafter the wires...
5519183 Plasma spray gun head  
The plasma gun head for plasma spraying apparatuses essentially comprises a cathode body mender, an anode body member and an insulating member inserted there between and electrically insulating...
5481080 Plasma torch with a lead-in tube  
A plasma torch has two or more tubular electrodes located co-axially with one inside the other for chemical treatment of a reactant and includes a lead-in tube supplying the reactant and which is...
5468295 Apparatus and method for thermal spray coating interior surfaces  
A method of thermal spray coating a surface with a metal coating material includes the provision of a nozzle about a thermal spray coating apparatus, such as a two wire electric-arc apparatus. The...
5466906 Process for coating automotive engine cylinders  
A method for coating the internal cylinder bores of a cast aluminum engine block comprising the steps of casting an engine block of aluminum alloy, thermally spraying a wear-resistant coating onto...
5466907 Process for coating the internal surfaces of hollow bodies  
A process of coating the internal surface of a hollow body by depositing a coating on a substrate having an external surface similar to the internal surface of the hollow body; inserting the coated...
5452854 Plasma spray apparatus  
The plasma spray apparatus for the coating of the inner walls of bores and tubes essentially comprises a housing, a supply member, a plasma gun shaft member and a plasma gun head member. The plasma...
5449880 Process and apparatus for forming a deposited film using microwave-plasma CVD  
A process for forming a deposited film on a substrate by microwave plasma CVD comprises holding a substrate in a pressure-reducible reactor vessel, introducing microwave energy into the reactor...
5444209 Dimensionally stable subsonic plasma arc spray gun with long wearing electrodes  
An improved plasma arc spray gun performs with higher deposition efficiency and longer lasting anodes and cathodes than prior spray guns. The spray gun of the invention includes a housing made of a...
5442153 High velocity electric-arc spray apparatus and method of forming materials  
A high velocity arc spray apparatus includes a transferred-arc-plasma torch assembly which forms a transferred-arc column. A metal feedstock is fed into the transferred-arc column at an angle such...
5436424 Plasma generating method and apparatus for generating rotating electrons in the plasma  
A plasma generating apparatus includes a vacuum chamber having an insulated inner surface, more than two electrodes arranged on the insulated inner surface of the vacuum chamber, a high frequency...
5436426 Fixture and method for cooling tubular substrate during thermal spraying  
A cooling fixture for thermal spraying includes a rotatable tubular member for supporting a tubular substrate such as for an oxygen sensor. A cooling tube extends from the tubular member into an...
5420391 Plasma torch with axial injection of feedstock  
A plasma torch incorporating an arc forming a chamber in which a cathode cooperates with an anode to form a plasma arc. A splitter is connected to the arc forming chamber and comprises a plurality...
5412173 High temperature plasma gun assembly  
A plasma gun assembly for use in high temperature environments couples electrode and cooling water supplying hoses to a plasma gun via an extension arrangement having a conductive cathode extension...
5408066 Powder injection apparatus for a plasma spray gun  
A powder injection apparatus for a plasma spray gun includes a block having channelling therein for liquid coolant. A powder port extends through the block in proximity to the channelling so as to...
5406046 Plasma spray apparatus for spraying powdery material  
The plasma spray apparatus for spraying powdery material, particularly for the coating of the surface of a work piece, comprises an indirect plasmatron adapted to create an elongated plasma torch,...
5403399 Method and apparatus for vapor deposition of diamond  
An apparatus for a vapor deposition of diamond by: effecting an arc discharge while feeding a discharge gas between an anode and a cathode of a thermal plasma chemical vapor deposition device; ...
5399832 Process and apparatus for using atmospheric-pressure plasma reactions  
A grounded electrode and a high-voltage applying electrode, each obtained by covering a metal electrode with a dielectric are housed at least within a reactor apparatus. A rare gas can be...
RE34806 Magnetoplasmadynamic processor, applications thereof and methods  
Embodiments of magnetoplasmadynamic processors are disclosed which utilize specially designed cathode-buffer, anodeionizer and vacuum-insulator/isolator structures to transform a working fluid into...
5357075 Plasma systems having improved thermal spraying  
Apparatus for delivering heated powder to the plasma gun of the thermal spray plasma system includes a hollow heater tube coupled between a powder feeder and the plasma gun and a power supply...
5340023 Plasma spraying method and apparatus  
A plasma flame flowing to a substrate around a beam of melt droplets is trimmed by spraying a refrigerant on the periphery of the plasma flame in the direction which allows the refrigerant to...
5298714 Plasma torch for the treatment of gases and/or particles and for the deposition of particles onto a substrate  
A plasma torch for the treatment of gases of particles, or for the deposition of particles onto a substrate, which has two concentrical electrodes coaxially mounted onto a support. The gases or...
5293026 Hardsurfacing material for engine components and method for depositing same  
A method for applying a hardsurfacing material to a workpiece such as a reciprocating aircraft engine tappet in which a carbon-containing wear resistant material in powder form is applied to a...
5285046 Apparatus for depositing particulate or powder-like material on the surface of a substrate  
The invention provides an apparatus for depositing particulate or powder-like material on the surface of a substrate. The apparatus comprises a hollow tube-like chamber consisting of a...
5243170 Method for deposition of hexagonal diamond using hydrogen plasma jet  
An improved method is proposed for providing a coating film of diamond on the surface of, for example, a cutting tool as the substrate by the plasma jet deposition method, in which the deposited...
5239161 Plasma flux spraying method of treating the surface of a substrate, for example, and apparatus for implementing the method  
The invention relates to a method and to apparatus for treating the surface of a substrate, e.g. by depositing a coating thereon by plasma flux spraying, the method being of the type in which an...
5237152 Apparatus for thin-coating processes for treating substrates of great surface area  
Apparatus for thin-coating processes for the treatment of substrates (8) of large surface area using a plasma (6) which is excited by microwaves (M) and the latter are coupled from a source by...
5235160 Heat-plasma-jet generator capable of conducting plasma spray or heat-plasma CVD coating in a relatively wide area  
In a heat-plasma-jet, an arc is initially generated between opposed endless ends of a pair of electrodes and is moved along the opposed endless ends of the electrodes by generating magnetic fields...
5233153 Method of plasma spraying of polymer compositions onto a target surface  
A method of plasma spraying of polymer compositions is disclosed for use with a plasma spray system having a cathode and anode for developing an electric arc in the presence of an ionizable gas and...
5225656 Injection tube for powder melting apparatus  
Apparatus and method for an RF plasma gun with injection probe that imparts feed material with a controllable radial component of motion by providing a conical exit port for the injection probe or...
5217747 Reactive spray forming process  
A reactive spray forming process comprises generating a molten spray of metal, and reacting such molten spray of metal in flight with a surrounding hot metal halide gas to form a desirable alloy,...
5195675 Method for producing a composite pipe  
Method for producing a composite pipe made of material which is resistant to an internal and/or external environment at a specific internal and/or external temperature and a specific internal...
5194714 Method and device for outside plasma deposition of hydroxyl ion-free silica  
Method of outside plasma deposition onto a rod (17,22) of silica substantially free from hydroxyl ions, possibly doped to change its refractive index, by reaction with oxygen of a silicon compound...
5191186 Narrow beam arc spray device and method  
A narrow beam arc spray head device includes a convergent-divergent nozzle; a number of wires the paths of which intersect at a point in the nozzle; controller for supplying an electrical current...
5180921 Method and apparatus for monitoring the temperature and velocity of plasma sprayed particles  
A method and an apparatus for monitoring simultaneously the temperature and the velocity of sprayed particles. The system is comprised of a sensor head attached to the spray gun, an optical fibre...
5159173 Apparatus for reducing plasma constriction by intermediate injection of hydrogen in RF plasma gun  
Apparatus and a method for generating an RF plasma plume wherein hydrogen gas is introduced downstream of the means for injecting plasma gas in order to increase the coupling between the RF coil...
5148986 High pressure thermal spray gun  
A high velocity thermal spray gun includes a nozzle member injecting an annular flow of combustible mixture at high pressure into a constricted gas cap. An outer flow of air is injected adjacent to...
5144110 Plasma spray gun and method of use  
The plasma generating apparatus and method of this invention is particularly, although not exclusively, suitable for plasma spraying. The plasma spray apparatus and method of this invention...
5109150 Open-arc plasma wire spray method and apparatus  
The plasma-arc torch is of the type wherein a thermally ionizable gas is ected past a non-consumable cathode electrode and through the constricted orifice of a nozzle. An arc is established between...
5095189 Method for reducing plasma constriction by intermediate injection of hydrogen in RF plasma gun  
Apparatus and a method for generating an RF plasma plume wherein hydrogen gas is introduced downstream of the means for injecting plasma gas in order to increase the coupling between the RF coil...
5070228 Method for plasma spray joining active metal substrates  
A method for joining substrates of the active metals, such as niobium, tantalum, and titanium, and alloys of the active metals is disclosed. The substrates are joined in a deposit zone traversing...
5047612 Apparatus and method for controlling powder deposition in a plasma spray process  
An apparatus and method for controlling the powder deposition and deposit pattern in a plasma spray process are provided in which an infrared imaging detector and associated processors are employed...
5043548 Axial flow laser plasma spraying  
A laser plasma spray apparatus for depositing a feed material onto a substrate includes a nozzle having a plasma confinement chamber into which a laser beam is focused, the focal point being at a...
5041713 Apparatus and method for applying plasma flame sprayed polymers  
An improved, environmentally safe protective coating for marine surfaces is provided which is specially formulated for application to boat hulls for resisting marine growth thereon while minimizing...
Matches 101 - 150 out of 268 < 1 2 3 4 5 6 >