U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 6266829

Combination Beverage Container and Spittoon

A combination beverage container and spittoon includes a bottom portion including outer wall and a first inner wall defining a spittoon space.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 75/10.19 - Plasma


Subclass of Class 75 - Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures
Definition: Processes wherein a wholly or partially charged mixture
No. of patents: 176
Last issue date: 01/10/2012


1          
NumberTitleIssue Date
8092570Method for producing titanium metal
A process and apparatus for producing titanium metal is described herein. The process comprises generating an RF thermal plasma discharge using a plasma torch provided with an RF coil; reducing titanium tetrachloride to a titanium metal by supplying titanium tetrach...
01/10/2012
8088192Recovery of residues containing copper and other valuable metals
A process for recovering non-ferrous metals, in particular copper, nickel and cobalt, from metallurgical residues containing these non-ferrous metals at an oxidation state of greater than or equal to zero, in an alternating current type plasma arc electric furnace c...
01/03/2012
7905941Recovery of non-ferrous metals from by-products of the zinc and lead industry using electric smelting with submerged plasma
This invention relates to a single-step pyrometallurgical process for the recovery of non-ferrous metals from zinc bearing residues, in particular from by-products of the zinc and lead industry such as goethite and jarosite. A process for the recovery of metals from...
03/15/2011
7470305Method and apparatus for alternating pouring from common hearth in plasma furnace
A method and apparatus for alternating pouring into molds, casts or refining hearths from a common hearth in a furnace. The apparatus provides a main hearth, a plurality of optional refining hearths, and a plurality of casting molds or direct molds whereby the refin...
12/30/2008
7329303Methods for producing titanium metal using grinding media
Grinding media, including shaped media such as spheres or rods ranging in size from about 0.5 micron to 100 mm in diameter, are formed from a multi-carbide material consisting essentially of two or more carbide-forming elements and carbon, with or without carbide-fo...
02/12/2008
7262384Reaction vessel and method for synthesizing nanoparticles using cyclonic gas flow
A reaction vessel and a method for efficiently producing and collecting nanoparticles in the reaction vessel using cyclonic gas flow. Gas is injected through an inlet tangentially positioned relative to the axis of the vessel to cause the gas to form an outer helica...
08/28/2007
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
7220793Curable film-forming composition exhibiting improved resistance to degradation by ultraviolet light
A curable film-forming composition is provided comprising (i) 10 to 90 percent by weight based on the total weight of resin solids in the film-forming composition of a crosslinking agent; (ii) 10 to 90 percent by weight of a polymer containing a plurality of functio...
05/22/2007
7217407Plasma synthesis of metal oxide nanoparticles
The present invention is a method of increasing particle surface area and decreasing the concentration of over-sized particles in a process for making metal oxide particles, particularly nanoparticle TiO2, in an inlet-fed, plug flow, plasma reactor by vap...
05/15/2007
7169206Battery recycling
Process for the recovery of Co or Ni, comprising the steps of: preparing a metallurgical charge comprising Fe, slag formers, and a useful load containing either one or both of Co and Ni; feeding the charge to a sha...
01/30/2007
7119240Method for converting natural gas to olefins
A process for converting natural gas to an olefin includes heating the gas to a selected range of temperature to convert a fraction of the gas stream to reactive hydrocarbons, primarily ethylene or acetylene, and reacting with hydrogen in the presence of a catalyst ...
10/10/2006
7097675Fast-quench reactor for hydrogen and elemental carbon production from natural gas and other hydrocarbons
A fast-quench reactor for production of diatomic hydrogen and unsaturated carbons is provided. During the fast quench in the downstream diverging section of the nozzle, such as in a free expansion chamber, the unsaturated hydrocarbons are further decomposed by rehea...
08/29/2006
7022155Plasma arc reactor for the production of fine powders
A plasma arc reactor and process for producing a powder from a solid feed material, for example aluminium, is provided. The reactor comprises: (a) a first electrode (5), (b) a second electrode (10) which is adapted to be spaced apart from the first ele...
04/04/2006
6994837Plasma synthesis of metal oxide nanopowder and apparatus therefor
A process and apparatus for the synthesis of metal oxide nanopowder from a metal compound vapour is presented. In particular a process and apparatus for the synthesis of TiO2 nanopowder from TiCl4 is disclosed. The metal compound vapour is reac...
02/07/2006
6967011Method for synthesizing extremely high-temperature melting materials
The invention relates to a method of synthesizing high-temperature melting materials. More specifically the invention relates to a containerless method of synthesizing very high temperature melting materials such as borides, carbides and transition-metal, lanthanide...
11/22/2005
6935618Valve component with multiple surface layers
A sliding component, particularly a disk valve plate. The sliding component includes a multi-layer surface structure comprising a strengthening layer harder than the substrate material, and an amorphous diamond top layer. ...
08/30/2005
6921510Method for preparing an article having a dispersoid distributed in a metallic matrix
An article has a metallic matrix made of its constituent elements with a dispersoid distributed therein. The article is prepared by furnishing at least one nonmetallic matrix precursor compound. All of the nonmetallic matrix precursor compounds collectively include ...
07/26/2005
6916368Curable film-forming composition exhibiting improved scratch resistance
A curable film-forming composition is provided that on curing produces a coating, comprising in a medium (i) 10 to 90 percent by weight based on the total weight of resin solids in the film-forming composition of a crosslinking agent; (ii) 10 to 90 percent by weight...
07/12/2005
6824585Low cost high speed titanium and its alloy production
A method for refining a titanium metal containing ore such as rutile or ilmenite or mixtures to produce titanium ingots or titanium alloys and compounds of titanium involves production of titanium tetrachloride by processing the ore with a chlorinating procedure and...
11/30/2004
6821500Thermal synthesis apparatus and process
An apparatus for thermal conversion of one or more reactants to desired end products includes an insulated reactor chamber having a high temperature heater such as a plasma torch at its inlet end and, optionally, a restrictive convergent-divergent nozzle at its outl...
11/23/2004
6786950High purity fine metal powders and methods to produce such powder
Methods of producing metal and alloy fine powders having purity in excess of 99.9%, preferably 99.999%, more preferably 99.99999% are discussed. Fine submicron and nanoscale powders discussed include various shapes and forms including spheres, rods, whiskers, platel...
09/07/2004
6712875Method and apparatus for optimized mixing in a common hearth in plasma furnace
A method and apparatus for optimized mixing in a common hearth in a plasma furnace. The apparatus provides a main hearth, a plurality of optional refining hearths, and a plurality of casting molds or direct molds whereby the refining hearths and molds define at leas...
03/30/2004
6689192Method for producing metallic nanoparticles
Method for producing metallic nanoparticles. The method includes generating an aerosol of solid metallic microparticles, generating non-oxidizing plasma with a plasma hot zone at a temperature sufficiently high to vaporize the microparticles into metal va...
02/10/2004
6600127Method and apparatus for direct electrothermal-physical conversion of ceramic into nanopowder
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 connected to electrodes on the ends of the tube. The electrode...
07/29/2003
6592644Sulfidization of sulfide ores for hydrometallurgical extraction of copper and other metals
The invention relates to a method for the extraction of metals from copper sulphide and/or copper iron sulphide ores with microbiological- and chemical-type leaching steps for dissolution of the metals, which comprises the following steps: 1) In a convers...
07/15/2003
6428600Process for producing spheroidized hard material powder
The spheroidized hard material powders are produced by introducing a finely ground basic mixture of hard material into a thermal, inductively coupled high-frequency plasma so that at the same time a chemical conversion reaction to form an alloy and/or che...
08/06/2002
6425934Gas generator disposal method and system therefor
A gas generator disposal method capable of disposing of large quantities of gas generators safely, efficiently and without contamination of environments, and a system therefor, the method comprising releasing an air bag deploying gas from an unused gas ge...
07/30/2002
6409792Process for melting and casting ruthenium-containing or iridium-containing titanium alloys
An improved process for successful and homogeneous incorporation of ruthenium and iridium into titanium and titanium alloy melts, ingots, and castings via traditional melting processes (e.g., VAR and cold-hearth) has been developed. This result is achieve...
06/25/2002
6391081Metal purification method and metal refinement method
A metal purification method and a metal refinement method in which metals of high purity can be easily refined and recovered without increasing the size of the purification and refining devices or complicating the operation. To this end, metals containing...
05/21/2002
6379419Method and transferred arc plasma system for production of fine and ultrafine powders
The present invention is concerned with a method for the production of fine and ultrafine powders of various materials such as metals, alloys, ceramics, composites etc., through a transferred arc plasma system. The method comprises vaporizing or decomposi...
04/30/2002
6377602Method and device to feed premixed gas to tuyeres of electric arc furnaces
Method and device to feed tuyeres in an electric furnace, the tuyeres comprising a central conduit to deliver a comburent gaseous substance and a peripheral conduit to deliver a cooling gaseous substance, the method providing to send to the central condui...
04/23/2002
6214247Substrate treatment method
Method for removing a portion of the binder phase from the surface of a substrate that is composed of particles of at least a first phase joined together by the binder phase, and wherein the surface is etched by contacting it with a gas flow of an etchant...
04/10/2001
6136060Low cost high speed titanium and its alloy production
A method for refining a titanium metal containing ore such as rutile or illmenite or mixtures to produce titanium ingots or titanium alloys and compounds of titanium involves production of titanium tetrachloride as a molten slag, by processing the ore in ...
10/24/2000
6019812Subatmospheric plasma cold hearth melting process
A plasma cold hearth melting process which provides an ingot of improved properties and including a plasma cold hearth melting furnace operated inside an air-tight chamber containing an inert gas, such as helium, at subatmospheric pressure levels. Raw mat...
02/01/2000
5972065Purification of tantalum by plasma arc melting
Purification of tantalum by plasma arc melting. The level of oxygen and carbon impurities in tantalum was reduced by plasma arc melting the tantalum using a flowing plasma gas generated from a gas mixture of helium and hydrogen. The flowing plasma gases o...
10/26/1999
5942023Process for recovering metals from electric arc furnace (EAF) dust
Heavy metals substantially free from heavy metal chloride contaminants are recovered from electric arc furnace (EAF) dust by bringing the dust into contact with a carbonaceous reductant utilizing a plasma arc of a DC sealed atmosphere plasma arc furnace s...
08/24/1999
5935293Fast quench reactor method
A fast quench reaction includes a reactor chamber having a high temperature heating means such as a plasma torch at its inlet and a means of rapidly expanding a reactant stream, such as a restrictive convergent-divergent nozzle at its outlet end. Metal ha...
08/10/1999
5802098Melting vessel with fastening, mounting and tilting devices
A melting vessel plant, in which the melting vessel is a converter vessel, to which a vessel cover with a pipe connection for removing the flue gases is attached. Either an oxygen lance with an auxiliary cover or electrodes with an auxiliary cover are int...
09/01/1998
5802097Melting method for an electric ARC furnace with alternative sources of energy and relative electric ARC furnace with special burner positioning
Melting method for an electric arc furnace with alternative sources of energy for the melting of iron-based alloys, the electric furnace (10) including tuyeres (13) positioned on the bottom to deliver oxygen, at least one tuyere (15) to deliver coal dust ...
09/01/1998
5788735Process for remediation of lead-contaminated soil and waste battery casings
Lead-contaminated soil and battery casings are remediated using a plasma arc furnace which pyrolyzes the soil and waste battery casings so as to form a vitrified slag and a combustible gas, respectively. The combustible gas along with volatilized lead (an...
08/04/1998
1          
 
Sign InRegister
Username  
Password   
forgot password?