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Class 219/121.37 - Melting


Subclass of Class 219 - Electric heating
Definition: Subject matter wherein the ionized gas plasma liquifies
No. of patents: 101
Last issue date: 11/17/2009


1      
NumberTitleIssue Date
7619178Directly connected magnetron powered self starting plasma plume igniter
An igniter for use in aircraft gas turbine and rocket engines that derives its energy from a directly connected magnetron. The igniter is intended to be mounted exterior of the engine, and to protrude into the engine's combustion chamber. The magnetron energy is con...
11/17/2009
7507934Plasma generation electrode, plasma reactor, and exhaust gas cleaning apparatus
A plasma generation electrode capable of subjecting predetermined components contained in a fluid to be treated to their respective reaction treatments with plasmas having different intensities optimized on a reaction basis, by passing merely once the fluid to be tr...
03/24/2009
7348515Solder dispenser
A solder dispenser provides a cylindrical dispensing container which has a solder inlet for introducing a solder member, and an opening portion for discharging the above-mentioned solder member to the external, and forms an internal space where the solder member can...
03/25/2008
7285247Apparatus and method for operating a fuel reformer so as to purge soot therefrom
A method of operating a fuel reformer includes advancing a first air/fuel mixture having a first air-to-fuel ratio into the fuel reformer. The method further includes determining if a soot purge is to be performed and generating a purge-soot signal in response there...
10/23/2007
7252744Treatment of fluorocarbon feedstocks
A method of treating a fluorocarbon feedstock includes generating, in a high temperature zone, an electrical arc between at least one cathode and at least one anode, generating in the high temperature zone and by means of the electrical arc and a plasma gas, an upwa...
08/07/2007
7244281Method and apparatus for trapping and purging soot from a fuel reformer
A plasma fuel reformer assembly for producing reformate gas includes a fuel reformer having an air/fuel input assembly, an electrode assembly, and a soot trap positioned downstream of the electrode assembly. The electrode assembly includes a first electrode and a se...
07/17/2007
7241523Forced air fuel cell power system
A portable electricity generation device comprises a plurality of fuel cells, each fuel cell having an anode end with a catalyst facilitating the separation of hydrogen atoms into electrons and protons, a cathode end facilitating the combination of the electrons and...
07/10/2007
7138599Plasma-based de-icing
An electrical conductor and a gas-filled layer are located at or near the surface of an object being deiced. The conductor carries an AC voltage that generates an alternating electric field in the gas-filled layer. A conductive layer increases the electric field str...
11/21/2006
7125525Device and method for production of carbon nanotubes, fullerene and their derivatives
An apparatus and method for the production of nanotubes, fullerene and their derivatives where, in an environment where an inert gas flows at or below atmospheric pressure, a high frequency electromagnetic field is generated and a pure or doped graphite element is s...
10/24/2006
7110503X-ray measuring and testing system
The complex is intended for carrying out research in the X-ray range at several analytical devices 5 simultaneously. The complex comprises a source 1 of divergent X-rays, for example an X-ray tube and x-ray lenses 2 for radiation transporting to...
09/19/2006
6911618Method 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 method of producing minute metal balls, comprising the steps of cutt...
06/28/2005
6817388Multiple plasma generator hazardous waste processing system
A waste processing system is provided herein which entails the use of at least one fixed-position plasma arc generator for primary processing and at least one moveable plasma arc generator for secondary processing assistance and/or final conditioning of the slag pri...
11/16/2004
6737604Symbiotic solid waste—gaseous waste conversion system for high-efficiency electricity production
The system includes a source of solid, liquid or sludge waste and a source of waste gas. A waste conversion device receives the solid, liquid or sludge waste and converts it into a hydrogen-rich gas. An internal combustion engine receives as fuel the hydrogen-rich g...
05/18/2004
6624380Device for recovering sodium hydride
A device and method for producing sodium (Na) from a feed material such as a mixture of methane (CH4) and sodium hydroxide (NaOH) includes a plasma torch configured to heat the feed material to a temperature sufficient to reduce and ionize sodi...
09/23/2003
6489584Room-temperature surface weld repair of nickel-base superalloys having a nil-ductility range
A near-surface defect in a nickel-base superalloy article having a nil-ductility range is weld repaired with a low-power, directional, spatially confined heat source. During the weld repair procedure, the body of the article is maintained at room temperat...
12/03/2002
6380507Apparatus for feeding waste matter into a plasma arc furnace to produce reusable materials
Apparatus and a method are disclosed for generating energy from the essentially complete disassociation of organic matter in a plasma arc furnace operating under pyrolytic conditions. Energy is produced by the disassociation in the form of synthesis gases...
04/30/2002
6355904Method and system for high-temperature waste treatment
A waste treatment system is provided, including a waste melter system and an air pollution control system. Hazardous and/or radioactive waste in drums is conducted through a waste feed system into a plasma chamber where the waste is exposed to heat from a...
03/12/2002
6236013Combined process and automatic installation for plasma-jet marking and cutting or welding, in particular of metals
A process and an automatic installation for plasma-jet marking and for cutting or welding various materials. A carrying structure carries both a plasma-marking torch and at least one torch for plasma or laser cutting, oxycutting or plasma or laser welding...
05/22/2001
6182585Method and equipment for thermal destruction of wastes
Thermal destruction of waste includes forming a bath of a melted slag, heating the waste and introducing the waste onto a surface of the bath, passing produced off-gasses through the melted slag, discharging the off-gasses, releasing produced metal and sl...
02/06/2001
6160238Tunable molten oxide pool assisted plasma-melter vitrification systems
The present invention provides tunable waste conversion systems and apparatus which have the advantage of highly robust operation and which provide complete or substantially complete conversion of a wide range of waste streams into useful gas and a stable...
12/12/2000
6156993Heat treatment method and apparatus using thermal plasma, and heat treated substance produced thereby
In the method, apparatus and the substance produced thereby: a plasma flame 1 is produced by a plasma torch 11; the plasma flame 1 is passed through a plasma flame furnace 21 which controls the heat of the plasma flame 1; then, the plasma flame 1 is injec...
12/05/2000
6155182Plant for gasification of waste
A waste disposal system for gasification and melting of various waste materials such as solid waste, waste in a solid container, granular waste, and liquid waste, and mixtures thereof. The system includes a reactor vessel which is closed to the atmosphere...
12/05/2000
6130397Thermal plasma annealing system, and annealing process
A thermal plasma annealing system comprises a radiation irradiation means for irradiating a thin film formed on a substrate with heat or radiation emitted from a thermal plasma. This annealing system enables a material relatively sensitive to high heat su...
10/10/2000
6127645Tunable, self-powered arc plasma-melter electro conversion system for waste treatment and resource recovery
The present invention provides a relatively compact self-powered, tunable waste conversion system and apparatus which has the advantage of highly robust operation which provides complete or substantially complete conversion of a wide range of waste stream...
10/03/2000
6121572Fixture used for the heat sealing of foils using a plasma jet
Fixture for the heat-sealing of foils along a weld joint, including a plasma nozzle (10) and a conveying device which generates a relative movement between the plasma nozzle and the foil layers (42, 44) along the weld joint....
09/19/2000
6114648Waste demolishing method and apparatus therefor
An apparatus for demolishing an oil-containing industrial waste object, includes a turntable for supporting thereon of an oil-containing industrial waste object, a sealed enclosure mounted above the turntable for gas-tightly enclosing the industrial waste...
09/05/2000
6080954Heat treatment method and apparatus using thermal plasma, and heat treated substance produced thereby
In the method, apparatus and the substance produced thereby: a plasma flame 1 is produced by a plasma torch 11; the plasma flame 1 is passed through a plasma flame furnace 21 which controls the heat of the plasma flame 1; then, the plasma flame 1 is injec...
06/27/2000
6066825Methods and apparatus for low NOx emissions during the production of electricity from waste treatment systems
Methods and apparatus for high efficiency generation of electricity and low oxides of nitrogen (NOx) emissions are provided. The electricity is generated from combustion of hydrogen-rich gases produced in waste conversion units using ultra lean...
05/23/2000
6037560Enhanced tunable plasma-melter vitrification systems
The present invention provides tunable waste conversion systems and apparatus which have the advantage of highly robust operation and which provide complete or substantially complete conversion of a wide range of waste streams into useful gas and a stable...
03/14/2000
6015963Plasma arc furnace with improved replaceable electrodes
A plasma arc waste treatment furnace is equipped with a plasma arc torch having an electrode formed from a conductive refractory material. The refractory electrode can be operated at very high temperatures and does not need to be water-cooled. This elimin...
01/18/2000
5958264Plasma gasification and vitrification of ashes
This invention discloses a method and an apparatus for gasification and vitrification of ashes, such as produced in a hog-fuel fired boiler, by means of a plasma arc. The ashes are introduced into a shaft furnace where two or three tiltable electrodes are...
09/28/1999
5908564Tunable, self-powered arc plasma-melter electro conversion system for waste treatment and resource recovery
The present invention provides a relatively compact self-powered, tunable waste conversion system and apparatus which has the advantage of highly robust operation which provides complete or substantially complete conversion of a wide range of waste stream...
06/01/1999
5888638Sealing element, particularly for shut-off and regulating valves, and process for its production
A sealing element is made up of a shut-off body with a sealing surface; a bonding layer component provided on the sealing surface of the shut-off body and containing silicon and carbon; and a sliding layer component provided on the bonding layer component...
03/30/1999
5886316Method and apparatus for treating waste and for obtaining usable by-product
The present invention is directed to the art of treating waste using laser technology. Industrial and toxic waste materials are irradiated with a laser inside a spherical reactor chamber such that they are heated to high temperatures. Organic compounds ar...
03/23/1999
5877394Method for treating waste containing stainless steel
A centrifugal plasma arc furnace is used to vitrify contaminated soils and other waste materials. An assessment of the characteristics of the waste is performed prior to introducing the waste into the furnace. Based on the assessment, a predetermined amou...
03/02/1999
5847353Methods and apparatus for low NOx emissions during the production of electricity from waste treatment systems
Methods and apparatus for high efficiency generation of electricity and low oxides of nitrogen (NOx) emissions are provided. The electricity is generated from combustion of hydrogen-rich gases produced in waste conversion units using ultra lean...
12/08/1998
5828029Device for externally cooling a plasma torch
The invention concerns a device for externally cooling a plasma torch. The invention concerns a device for cooling a plasma torch in which the electrode(s) and plasma fluid and cooling circuits are housed in a tubular casing, wherein the cooling device in...
10/27/1998
5824988Reactor and method for the treatment of particulate matter by electrical discharge
A reactor and method for the treatment of matter by plasma action. A plurality of electrode structures are positioned to define a reaction zone associated with the inter-electrode space. The inter-electrode space is conditioned (as by preionizing) and a s...
10/20/1998
5811752Enhanced tunable plasma-melter vitrification systems
The present invention provides tunable waste conversion systems and apparatus which have the advantage of highly robust operation and which provide complete or substantially complete conversion of a wide range of waste streams into useful gas and a stable...
09/22/1998
5798497Tunable, self-powered integrated arc plasma-melter vitrification system for waste treatment and resource recovery
The present invention provides a relatively compact self-powered, tunable waste conversion system and apparatus which has the advantage of highly robust operation which provides complete or substantially complete conversion of a wide range of waste stream...
08/25/1998
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