Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7850901 | Conditioning system and method for use in the measurement of mercury in gaseous emissions Embodiments of the invention relate generally to systems used to measure mercury in gaseous emissions. In one aspect, the invention is directed to the use of silicon carbide as material for a thermal pyrolysis unit. In another aspect, at least one of silicon nitride... | 12/14/2010 |
| 7648673 | Process for denoxification of off-gases from annealing and pickling lines, and an annealing and pickling line, especially for stainless steel hot or cold strip A process for denoxification of off-gases from annealing and pickling lines, providing for the off-gases from the pickling section to be heated and denoxified by selective catalytic reduction (SCR). In order to secure the meeting of lowest NOx values in the off-gas ... | 01/19/2010 |
| 7407621 | Mobile processing enclosure for preventing air pollution A track-based mobile system for use with processes generating air-borne pollutants, for preventing contamination of the atmosphere. An enclosure for containing air-borne pollutants and a filtering system for removing the pollutants from the air are movable as a unit... | 08/05/2008 |
| 7381383 | Treating apparatus, treating method and method of treating soil A treatment apparatus of the present invention includes a hermetic door 115b and a retort 115c as an interface for taking out a gaseous emission containing vaporized substances from an object to be treated which is being heated in a reduc... | 06/03/2008 |
| 7232542 | Preheating cold blast air of a blast furnace for tempering the hot blast temperature An improved blast furnace system for producing molten iron incorporating a preheater to heat the cold blast air used to temper the hot blast temperature is disclosed. The improved blast furnace system comprises a blast furnace, a hot blast main for conveying a suppl... | 06/19/2007 |
| 7201868 | Direct smelting plant A direct smelting plant for producing molten metal from a metalliferous feed material is disclosed. The plant includes a fixed smelting vessel to hold a molten bath of metal and slag and a gas space above the bath. The plant also includes means for supplying solids ... | 04/10/2007 |
| 7169207 | Device and method for treatment of gases The device and method of the present invention employs a column having a gas inlet in its lower part and a gas outlet in its upper part. Carbon particles are introduced into the column through a supply pipe. The supply pipe is movable so that by manipulating the hei... | 01/30/2007 |
| 7150777 | Method for recovery of by product gas in vacuum heat treatment A method and apparatus for the recovery of by product gases used in a vacuum metal treatment process or other gas treatments processes are disclosed. The present invention is normally carried out in a process chamber in the last stage of the process, after vacuum pr... | 12/19/2006 |
| 7098421 | Long lasting torch The invention is a transferred or non-transferred plasma arc torch for use in a fuel gas generator system for generating electricity from waste, wherein the torch includes a torch housing, electrodes (one in a transferred torch, two in a non-transferred torch), a tu... | 08/29/2006 |
| 6833106 | Compact blast furnace installation In order to design a blast furnace in a space and cost-saving manner, the invention provides for an especially compact blast furnace (10) having no hearth, wherein the burden is transported to the charging platform by vertical conveyers (20) and a comp... | 12/21/2004 |
| 6800113 | Equipment for distribution and feeding of charge and fuel in shaft furnaces of rectangular cross section The present invention refers to an equipment for feeding and distributing charge and fuel in furnaces of rectangular cross section, comprising movable feeding tubes to distribute along the longitudinal section and the cross section of the furnace, both a charge comp... | 10/05/2004 |
| 6692688 | Modular furnace A modular apparatus for the production of molten metal by self reduction of agglomerates of metal oxide or of prereduced metal, which may be iron. The apparatus includes a plurality of connected cells of identical size and construction. Each apparatus is ... | 02/17/2004 |
| 6682586 | Assemblies and methods for processing zinc-bearing materials A process for separating and recovering a desired metal as metal oxide from raw material is provided. The process includes placing the raw material and a reductant in a container to form a reducing microclimate within the container. A housing having an ox... | 01/27/2004 |
| 6676889 | Modular furnace emission remediation system A furnace exhaust remediation unit comprises an auxiliary combustion chamber with a gas burner assembly optimized for efficient and substantially complete combustion of pollutants, for example, waxy hydrocarbons emitted as binder/lubricant substances are ... | 01/13/2004 |
| 6638471 | Water cooled vessel for vacuum processing liquid steel The invention relates to a process vessel for vacuum processing liquid steel, comprising a lower part, a middle part and an upper part, and submersible pipes located on the lower part, whereby the process vessel is provided with a heating apparatus, a fee... | 10/28/2003 |
| 6506337 | Molten metal ladle transport arrangement An arrangement of operating stations and equipment for the rapid preparation and transport of molten metal ladles and pouring tanks with covers to a pouring station of a pressure-pouring operation, and a method of providing the moving, placement and trans... | 01/14/2003 |
| 6495092 | Combustion apparatus and melting furnace for nonferrous metals A combustion apparatus comprises a pair or more than two pairs of burner groups. Each burner group comprises one regenerator per a plurality of burners. In each pair of burner groups, a first burner group and a second burner group are fired alternately an... | 12/17/2002 |
| 6425934 | Gas 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 |
| 6399016 | Direct smelting plant Direct smelting plant for producing molten metal from a metalliferous feed material induces a smelting vessel 11 to hold a molten metal and slag bath beneath a hot gas space. Solids injection lances 27 extend downwardly and inwardly through side walls of ... | 06/04/2002 |
| 6379420 | Method and plant for producing a reducing gas serving for the reduction of metal ore In a method for producing a hot CO- and H2 -containing reducing gas serving for the reduction of fine-grained metal ore, in particular iron ore, the reducing gas is formed in a gasification zone by a gasification of carbon carriers, in particul... | 04/30/2002 |
| 6315943 | Apparatus for producing molten metal In a method of producing molten metal (8) from at least partially fine-particulate metal carriers in a melter gasifier (2) in which under supply of carbon-containing material and oxygen or an oxygen-containing gas under simultaneous formation of a reducin... | 11/13/2001 |
| 6264722 | Process for producing liquid pig iron or intermediate steel products and installation for implementing it In a process for producing molten pig iron or steel preproducts from fine-particulate iron containing material in a meltdown gasifying zone of a melter gasifier, under the supply of carbon-containing material and oxygen-containing gas at the simultaneous ... | 07/24/2001 |
| 6251337 | Apparatus and method for treating a particulate material within a rotating retort An apparatus and process for treating particulate material within a rotating retort in which gas is injected within the retort to fluidize the particulate material within the rotating retort. An auger is mounted within an axle supporting the retort for ro... | 06/26/2001 |
| 6241798 | Iron smelting process and plant according to the multiple zone smelting process In order to be able to process in an economical manner different iron carriers in varying quantitative compositions, a plant for the production of iron melts (4), in particular steel melts, such as crude steel melts, is equipped with an electric are furna... | 06/05/2001 |
| 6235236 | Apparatus for treating emissions of manufacturing plants An emission treatment apparatus for manufacturing plants including an inlet duct, a decantation chamber and an outlet duct. The emission treatment apparatus advantageously includes elements located inside of the decantation chamber for rendering uniform t... | 05/22/2001 |
| 6224819 | Fluidized bed type reducing system for reducing fine iron ore A fluidized bed reducing system for reducing a fine iron ore is disclosed, in which the structure of the fluidized bed reducing furnace is improved such that the coarse iron ore particles are distributed in the lower portion of the fluidized bed within th... | 05/01/2001 |
| 6210631 | Reduction vessel for the reduction of metal-oxide-bearing material The invention relates to a reduction vessel (1) for the reduction of metal-oxide-bearing material, particularly of iron ore, by means of a reduction gas flowing countercurrently to the metal-oxide-bearing material, which reduction vessel (1) is provided w... | 04/03/2001 |
| 6071467 | Technique and apparatus for ladle cleanout An apparatus and technique for collecting fumes from a metallurgical vessel such as a ladle are disclosed. The apparatus and technique are particularly well suited for collecting fumes during a cleanout operation of one or more discharge ports along the b... | 06/06/2000 |
| 6030432 | Process for reducing ore fines and arrangement for carrying out the process In a process for the reduction of fine ore by reducing gas in the fluidized bed method, the following characteristic features are realized in order to achieve a uniform and even degree of metallization at optimum utilization of the reducing gas and while ... | 02/29/2000 |
| 5997801 | Metal chip reclamation system An apparatus and method for reclaiming metal chips formed while machining metal castings to their finished shape. The apparatus includes a stationary charging tube extending in a generally perpendicular direction from the charge well of a reverbratory fur... | 12/07/1999 |
| 5997609 | Sponge iron production process and plant In a process for producing sponge iron from particulate iron oxide-containing material, the iron oxide-containing material in a reduction zone is reduced to sponge iron by means of reducing gas and the gas forming during reduction is withdrawn as top gas.... | 12/07/1999 |
| 5902543 | Process and device for cooling an article In a process for cooling an article by applying a liquid coolant to the surface (20) of the article (18) in the form of continuous jets (16) of coolant, the delivery rate of each jet of coolant is set in such a manner that the coolant striking the surface... | 05/11/1999 |
| 5885325 | Process and apparatus for the manufacture of steel A two stage reaction for the production of steel from iron carbide is carried out in two separate but interrelated reactors. In the first reactor, iron, carbide, with slag formers, is fed into a feed end and the reaction is well-mixed by the vessel geomet... | 03/23/1999 |
| 5882579 | Apparatus for producing direct reduced iron utilizing a reducing gas with a high content of carbon monoxide A method and apparatus for producing direct reduced iron using a melter-gasifier and two reduction reactors. In the first reduction reactor, iron ore is prereduced using a reducing gas from a melter-gasifier. This prereduced iron ore is fed into the melte... | 03/16/1999 |
| 5785923 | Apparatus for continuous feed material melting The apparatus of the present invention is a melter housing having a pretreat chamber heated with a feed material heater that is partially isolated from a melter chamber. The method of the present invention has the steps of introducing feed material into a... | 07/28/1998 |
| 5782188 | Pyrolytic combustion apparatus and method A method and apparatus for incinerating waste material and in particular, for incinerating particulate material resulting from the shredding of vehicles. The particulate material is fed to one end of a rotary drum, and is subjected in the drum to pyroliti... | 07/21/1998 |
| 5733358 | Process and apparatus for the manufacture of steel from iron carbide A two stage reaction for the production of steel from iron carbide is carried out in two separate but interrelated reactors. In the first reactor, iron carbide, with slag formers, is fed into a feed end and the reaction is well-mixed by the vessel geometr... | 03/31/1998 |
| 5705123 | Metal chip reclamation system An apparatus and method for reclaiming metal chips formed while machining metal castings to their finished shape. The apparatus includes a stationary charging tube extending in a generally perpendicular direction from the charge well of a reverbratory fur... | 01/06/1998 |
| 5700420 | Non-oxidizing heating method and apparatus A non-oxidizing heating method and apparatus in which a non-oxidizing gas of high temperature is continuously generated and supplied into a furnace by changing over a plurality of heat storage type heaters alternately while repeating an operation in which... | 12/23/1997 |
| 5673900 | Reclamation of metal from scrap A process for recovering metal from scrap using a furnace having a bath chamber, a dry hearth chamber, an exhaust duct, and an incinerator for burning fumes from the dry hearth chamber is presented. The process includes conveying oxygen or oxygen enriched... | 10/07/1997 |
