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8109218 Waste treatment process and apparatus  
A process for the treatment of waste, the process comprising either a gasification step or a pyrolysis step to produce an offgas and a non-airborne, solid char material; followed by a plasma...
7658155 Waste treatment process and apparatus  
A process for the treatment of waste, the process comprising: (i) either (a) a gasification step comprising treating the waste in a gasification unit in the presence of oxygen and steam to produce...
7629553 Metal oxide nanoparticles and process for producing the same  
There is disclosed a process for producing metal oxide nanoparticles. The process includes the steps of: a) providing at least two precursor metal salt materials, b) passing the at least two...
7161110 Melting and vaporizing apparatus and method  
An apparatus and method for heating materials or substances in an oven at an oven temperature below their melting and/or vaporization points to either melt and/or vaporize the substance. Substances...
7138599 Plasma-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...
6919525 Thermal management components  
An article comprises a heat source, a heat sink, and a high-efficiency diamond material interposed between and thermally coupled to the heat source and the heat sink. The heat source and the...
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 method...
6817388 Multiple 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...
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...
6677551 Process for operating a plasma arc torch  
A process for operating a plasma torch having an improved start up and shut down sequence to substantially increase electrode element life. The first shut down mode is controlled such that plasma...
6355904 Method 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...
5958264 Plasma 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...
5877394 Method 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...
5847355 Plasma-assisted microwave processing of materials  
A microwave plasma assisted method and system for heating and joining materials. The invention uses a microwave induced plasma to controllably preheat workpiece materials that are poorly microwave...
5809911 Multi-zone waste processing reactor system  
The novel waste treatment system of the invention employs multiple reactor zones for processing heterogeneous waste. In one embodiment, the reactor system (10) includes the following components:...
5762009 Plasma energy recycle and conversion (PERC) reactor and process  
Plasma energy recycle and conversion (PERC) reactor and process for disposal of energetics such as solid rocket propellants, liquid rocket fuel, chemical agents such as nerve gas, industrial waste...
5750822 Processing of solid mixed waste containing radioactive and hazardous materials  
Apparatus for the continuous heating and melting of a solid mixed waste bearing radioactive and hazardous materials to form separate metallic, slag and gaseous phases for producing compact forms of...
5731564 Method of operating a centrifugal plasma arc furnace  
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...
5666891 ARC plasma-melter electro conversion system for waste treatment and resource recovery  
The present invention provides a relatively compact and highly robust waste-to-energy conversion system and apparatus which has the advantage of complete or substantially complete conversion of a...
5611947 Induction steam plasma torch for generating a steam plasma for treating a feed slurry  
Steam plasma reactor incorporating an induction steam plasma torch where superheated steam is generated and passed through an induction coil or coils to generate high temperature steam plasma for...
5595669 Method of forming coupling diopters at the ends of optical fibers  
To enable surface tension forces to confer upon an optical fiber end (P1), a shape procuring good optical coupling the end is partially melted in an electric arc (ZC). To improve the...
5541386 Plasma arc decomposition of hazardous wastes into vitrified solids and non-hazardous gasses  
A disposal of waste material including water, volatile components and vitrifiable components, the waste material is heated in a dehydrator to remove the water, heated in a high-temperature dryer to...
5532449 Using plasma ARC and thermite to demolish concrete  
A plasma arc can be employed to demolish a concrete structure at a high efficiency, while preventing a secondary problem due to noise, flying dust and chips, and the like. The concrete structure...
5528012 Apparatus and method for starting a plasma arc treatment system  
An ignitable material is positioned in contact with a slag contained within a plasma arc treatment system having an electrode and an electrical ground. The slag is initially at a temperature below...
5399829 Material treatment method and apparatus  
A method of treating waste material which involves creating a substantially continuous curtain of plasma and directing the material to be treated through that curtain. An electric arc is generated...
5399833 Method for vitrification of fine particulate matter and products produced thereby  
The present invention provides a method for the melting and subsequent solidification of fine particulate material by use of a plasma torch. The fine particulate material is introduced into a...
5354963 Process and a device for continuous surface treatment of rod-shaped, longitudinally extended materials with metal surfaces using a magnetically displaced plasma arc  
The invention concerns a process and a device for surface heat treatment of rod-shaped, longitudinally extended materials with metal surfaces by means of an arc, which rotates and is magnetically...
5281790 Process of immobilizing ashes by vitrification thereof in a plasma reactor  
Disclosed is a process for immobilizing ashes by vitrification thereof in a plasma arc reactor, which is very efficient to treat ashes and any other pulverulent residues containing toxic leachable...
5266775 Cutter for removing dross produced by a plasma arc torch  
Molten metal created during cutting of a workpiece by a plasma-arc torch is discharged downwardly into a tubular collector duct. A power-rotated cutter is located adjacent the upper end of the duct...
5256855 Silica production  
Method for the production of fused silica in which a particulate silica feedstock material is passed from a silica feed tube through or near a plasma arc coupling zone in which at least two plasma...
5204508 Method and apparatus for enhancing the quality of cast billets  
A method and apparatus is disclosed for removing chevron cracks from the corner edges of a steel billet as it advances in a hot condition from a continuous casting operation. The apparatus includes...
5136137 Apparatus for high temperature disposal of hazardous waste materials  
An improved method and plasma torch incinerator or reactor in which the incinerator uses a rotating, materials-receiving drum or chamber for receiving the hot plasma of a plasma torch. By properly...
5120567 Low frequency plasma spray method in which a stable plasma is created by operating a spray gun at less than 1 MHz in a mixture of argon and helium gas  
A low frequency RF plasma spray deposition method is provided, which is especially effective in reducing losses and improving particle heating. In one aspect of the invention, an RF plasma gun is...
5104432 Process for fiberizing molten glass or refractory oxide materials  
A process for the treatment of a continuous or perturbated stream of liquid material, which process consists essentially of passing the said stream of liquid material through a plasma arc coupling...
5076991 Method and apparatus for rapid solidification  
A novel process for rapid solidification of ceramic melts combines certain features of cooling by atomization and by contact with chilling surfaces. The material to be solidified is divided into...
5046144 Method and furnace for the preparation of a melt for mineral wool production  
In a method for the preparation of a melt for the production of mineral wool a raw material is introduced at the top of a shaft furnace and heated to melting temperature partly with a hot gas...
5021084 Process for improving high-temperature alloys  
This invention is the electron beam evaporation and deposition(EBED) process which produces high purity and ultrafine grain size in high-temperature and reactive metal alloys. These properties are...
4919191 Molten-metal forming method and apparatus which are bottom-loading, bottom-pouring and bottom-unloading  
The bottom of a solid metal charge melts to fill a form below the charge. During melting, usually, the metal that enters the form remains continuous with an unused solid part of the charge. After...
4912296 Rotatable plasma torch  
An improved plasma torch having a rugged configuration, which is easier to start, and which eliminates the need for fragile and possibly metal contaminating insulators from the lower end of the...
4905538 Camshaft  
A camshaft of a valve operating system for an internal combustion engine, is formed of iron-based alloy casting and has cam sections, each of which is in slidable contact with a heat resistant tip...
4900894 Method of heating a quartz glass tube  
A method of heating a quartz glass tube with microwaves, which method comprises supplying a gas for plasma generation in the quartz glass tube, applying microwaves to the quartz glass tube so as to...
4822632 Ionizing plasma lubricant method  
A method to reduce high breakout and sustaining forces between slidable surfaces includes applying a film of lubricant to at least one of the surfaces and subjecting the lubricant and surface to an...
4783218 Process for producing spherical refractory metal based powder particles  
A powdered material and a process for producing the material are disclosed. The powdered material consists essentially of refractory metal based spherical particles and is essentially free of...
4783216 Process for producing spherical titanium based powder particles  
A powdered material and a process for producing the material are disclosed. The powdered material consists essentially of titanium based spherical particles which are essentially free of elliptical...
4778515 Process for producing iron group based and chromium based fine spherical particles  
A powdered material and a process for producing the material are disclosed. The powdered material consists essentially of iron group based and chromium based spherical particles. The material is...
4674683 Plasma flame spray gun method and apparatus with adjustable ratio of radial and tangential plasma gas flow  
A plasma gun has a hollow generally cylindrical anode nozzle member and coaxially disposed therein a cylindrical cathode member, the members co-acting to form an interior passage for plasma forming...
4673409 Implant with attachment surface  
An implant for use in a human body having an integral attachment surface adapted to permit tissue ingrowth. The attachment surface has an inner attachment surface and a multiplicity of spaced posts...
4633055 Plasma cutting system  
The plasma cutting system of the invention includes a constant height plasma arc cutter, a rolling table and a plasma cutter carrying gantry driven from opposite sides. The rolling table is rolled...
4627990 Method of and apparatus for supplying powdery material  
A method of and an apparatus for supplying a powdery material to a workpiece to be processed thereby. According to the method, the powdery material is discharged from a hopper and metered, and then...
4626654 Metallurgical plasma melting process  
A metallurgical plasma melting process wherein a plasma burner and a separate start-up burner disposed alongside same in the same port have their axes intersecting in the furnace at an acute angle....
Matches 1 - 50 out of 67 1 2 >