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7045737 |
Glass-processing method and glass-processing apparatus for the method
A glass-processing method adjusts the range of the heating region according to the work piece and processing condition, and a glass-processing apparatus implements the method. The method...
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7034244 |
Method and apparatus of coordinating operational feedback in a plasma cutter
The present invention is directed to a system and method for improved operational feedback from a plasma torch to a plasma-cutting power source. A plasma cutter includes a plasma cutting power...
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7012214 |
Nanopowder synthesis using pulsed arc discharge and applied magnetic field
Nanopowder synthesis systems in which a pulsed magnetic field is applied to electrodes of precursor material, in close proximity to an electrical discharge arc that is formed between the...
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6998565 |
Plasma processing apparatus
A plasma processing apparatus includes a first dielectric that is connected to a microwave generating unit, the first dielectric having a section that extends along a surface of a rectangular...
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6987238 |
Plasma arc torch and method for improved life of plasma arc torch consumable parts
A plasma arc torch and method for improving the life of the consumable parts of the plasma arc torch, including the electrode, the tip and the shield cap. The method includes turbulating gas as it...
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6987236 |
Plasma powder welding device and its welding method
A plasma powder welding device in this invention comprises a powder having an identical kind of main component as that of a work piece, a feeder feeding the powder to the work piece, a welding...
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6977359 |
Method and device for vacuum treatment
A vacuum-processing method carries out, in a vacuum-processing vessel ( 4 ), a process wherein a condition of an interior of the vacuum processing vessel ( 4 ) changes as the number of processed...
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6965629 |
Method and apparatus for initiating a pulsed arc discharge for nanopowder synthesis
A nanopowder synthesis system having an autofuser device which obviates the need for external power switches, and which accommodates repeated discharges (of the order of 10 7 ) between ablating...
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6960737 |
Gas flow pre-charge for a plasma arc torch
A system for controlling gas flow from a gas source, through a gas conduit, and to a plasma arc torch during a transition from a cold flow when no arc is present to a hot flow when an arc is...
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6955612 |
Golf club head and manufacturing method therefor
A manufacturing method for a golf club head. The method includes the steps of: casting a cast body provided with a recession thereon; cutting the cast body to form with at least one cut opening in...
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6949716 |
Process for treating with an atmospheric plasma electrically conductive materials and a device therefor
Process for the surface treatment of an object made of an electrically conductive material, with an atmospheric plasma, including the generation of plasma jets by plasma generators, the application...
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6946616 |
Plasma arc torch cooling system
A cooling system for a plasma arc torch is provided that comprises a coaxial fluid flow that improves cooling of components within the plasma arc torch and that provides a more compact torch...
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6943317 |
Apparatus and method for fast arc extinction with early shunting of arc current in plasma
There is provided by this invention a novel apparatus and method of operating a dc plasma process that diverts the power supply current from the plasma at the initiation of an arc, thereby...
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6933463 |
Main arc ignition device and main arc ignition control method of plasma cutting machine
A main arc ignition method capable of extending lives of a plasma electrode and a nozzle. For this purpose, before or immediately after starting arc, a plasma torch is supplied with a plasma gas at...
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6914210 |
Method of repairing a stationary shroud of a gas turbine engine using plasma transferred arc welding
A stationary shroud of a gas turbine engine made of a base metal is repaired by removing any damaged material from a flow-path region of the stationary shroud to leave an initially exposed...
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6911618 |
Method of producing minute metal balls
An object of the present invention is to provide a producing method by which minute metal balls having a high sphericity or roundness and a uniform diameter. The present invention provides a...
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6911619 |
Plasma cutting torch electrode with an Hf/Zr insert
An emissive electrode insert formed from an alloy containing hafnium and zirconium. The insert typically contains at least about 80% hafnium by weight and about 0.1 to about 8% zirconium by weight....
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6903301 |
Contact start plasma arc torch and method of initiating a pilot arc
A contact start plasma arc torch is provided that comprises an electrode, a tip, and an initiator that is resiliently biased into contact with the tip, the initiator being movable against the...
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6888094 |
Plasma processing method and plasma processing apparatus
A plasma processing method of processing a substrate by controlling the application of a bias to the substrate independently of generation of plasma. The method includes modulating periodically an...
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6841754 |
Composite electrode for a plasma arc torch
A plasma arc torch that includes a torch body having a nozzle mounted relative to a composite electrode in the body to define a plasma chamber. The torch body includes a plasma flow path for...
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6838636 |
Two heat sources for welding silicon
A method of welding two silicon workpieces ( 20, 22 ) together into one member without the formation of cracks along the weld. A first method passes current ( 34, 36 ) through one or both of the...
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6815633 |
Inductively-coupled toroidal plasma source
Apparatus for dissociating gases includes a plasma chamber comprising a gas. A first transformer having a first magnetic core surrounds a first portion of the plasma chamber and has a first primary...
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6815632 |
Contact start plasma torch
A plasma torch comprises: a hollow shaft connected to a first supply pipe for a flow of a first gas and to an electrode which is hollow so that it surrounds part of the shaft and forms a first...
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6806439 |
Elimination of airborne chemical and biological warfare agents
The invention is directed to an apparatus made of atmospheric-pressure microwave plasma torches for elimination of toxic airborne chemical and biological warfare agents. The apparatus can purify...
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6800830 |
Chemistry for boron diffusion barrier layer and method of application in semiconductor device fabrication
A method of fabricating a semiconductor device includes providing a semiconductor substrate, forming an oxide layer in the substrate, and adding nitrogen atoms on top of the exposed surface of the...
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6787731 |
Method for oxyacetylene-cutting a piece of steel and device for carrying out this method
The invention relates to apparatus for oxygen cutting pieces of steel. The cutter and trimmer members ( 5, 10 ) are positioned in such a manner that the cutting jet ( 6 ) is applied to the top face...
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6781086 |
Method for removing photoresist
A method of removing photoresist from a wafer or other substrate consists of ashing the photoresist only once the wafer is spaced a predetermined distance above a wafer stage in a process chamber,...
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6777639 |
Radial pulsed arc discharge gun for synthesizing nanopowders
A system and method for synthesizing nanopowder which provides for precursor material ablation from two opposing electrodes that are substantially axially aligned and spaced apart within a gaseous...
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6774336 |
Tip gas distributor
A tip gas distributor is provided that preferably comprises a plurality of swirl holes and a plurality of secondary gas holes, wherein the swirl holes direct a plasma gas to generate a plasma...
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6753499 |
Method and apparatus for detecting anomalous discharge in plasma processing equipment using weakly-ionized thermal non-equilibrium plasma
An anomalous arc discharge detection apparatus, including multiplicity of ultrasonic detectors placed at different sections of a plasma processing chamber such that an ultrasonic wave accompanying...
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6740843 |
Method and apparatus for automatically re-igniting vacuum arc plasma source
An apparatus and method are disclosed whereby if the arc in a DC or long-pulse AC vacuum arc plasma process (eg in vacuum deposition) starts to extinguish, this is automatically detected and a...
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6740844 |
Tool-holder head, in particular for plasma beam cutting machines
A tool-holder head for machines using radiant energy beams, that is suitable in particular for plasma beam cutting machines, includes a vertical sliding saddle to which at least an energy beam...
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6734386 |
Method for rendering PVDF membrane hydrophilic
A microporous PVDF membrane is rendered hydrophilic without making it brittle or lowering its heat resistance by exposing the membrane to a plasma under controlled conditions. Specifically, a...
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6723946 |
Multicell reactors
An electrolytic reactor system for producing non-joule heat has a plurality of small cells arranged in an interconnected array, wherein each cell is characterized by having a relatively small...
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6713711 |
Plasma arc torch quick disconnect
A quick disconnect for use in a plasma arc torch is provided that comprises a plug housing and a mating socket housing, a locking ring disposed around the plug housing secures the plug housing to...
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6703581 |
Contact start plasma torch
A contact start plasma torch and method of starting the torch includes a negatively charged cathode body and a positively charged anode body. A conductive element in the torch is constructed of an...
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6696661 |
Plasma enhanced circuit packaging method and device
A method and apparatus for sealing a package over/around a circuit is presented. A pressurized directional flow of plasma is applied between metal bonding edges of the package and a metal surface...
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6686557 |
Nonflammable ternary gas mix for high pressure plasmas
The present invention provides a nonflammable ternary gas mixture to be used in a plasma machining operation. The ternary gas mixture of the present invention comprises from about 4% to about 6.2%...
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6686558 |
Atmospheric pressure inductive plasma apparatus
An inductive plasma torch operating at atmospheric pressure is used for wafer or glass substrate processing. Said torch employs a linear type of plasma confinement. This linear torch is...
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6686559 |
Electrode for plasma arc torch and method of making the same
An electrode for supporting an arc in a plasma arc torch. The electrode includes a metallic holder having a front end and a rear end. An emissive insert cavity is formed in the front end. An...
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6686556 |
Solid-waste energy plant using catalytic ionic-impact decomposition and combustion product regeneration
A solid-waste conversion plant produces useful products and electrical energy in a closed system with zero emission of pollutants into the atmosphere. The plant is characterized by catalytic...
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6670572 |
Solenoid control and safety circuit system and method
A solenoid control and safety circuit suitable for use in connection with contact start, plasma-arc torches. The system monitors a voltage to determine when to open an air control solenoid as part...
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6657153 |
Electrode diffusion bonding
An electrode for a plasma arc torch and method of fabricating the same are disclosed, and wherein the electrode comprises a copper holder defining a cavity in a forward end. An emissive element and...
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6624380 |
Device for recovering sodium hydride
A device and method for producing sodium (Na) from a feed material such as a mixture of methane (CH 4 ) and sodium hydroxide (NaOH) includes a plasma torch configured to heat the feed material to a...
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6617538 |
Rotating arc plasma jet and method of use for chemical synthesis and chemical by-products abatements
An apparatus for chemical synthesis or chemical abatement is disclosed which includes a processing chamber and a secondary chamber which is in communication with the processing chamber. The...
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6614001 |
Nozzle for plasma arc torch
An output structure for material processing apparatus facilitates field replacement of consumable components, while maintaining important alignments. Contoured surfaces within the output structure...
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6580051 |
Method and apparatus for producing bulk quantities of nano-sized materials by electrothermal gun synthesis
A process for synthesizing nanosized powders utilizes a hybrid exploding wire device containing a solid metal wire fuse in the bore of a tube that is open at each end. The ends of the fuse are...
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6576861 |
Method and apparatus for fine feature spray deposition
A system for fine feature spray deposition includes a substrate platform for supporting a substrate on which the features are to be deposited. A spray assembly is provided which includes a spray...
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6563075 |
Method of forming an electrode
A method of fabricating an electrode is disclosed, wherein the electrode comprises a copper holder defining a cavity in a forward end. An emissive element and separator assembly is positioned in...
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6555778 |
Plasma enhanced sheet bonding method and device
A method and apparatus for bonding solid sheets together is presented. A modulated directional flow of plasma is applied at and between the bonding surfaces of the sheets to be bonded prior to and...
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