Celebrity Inventors
Lawrence Welk, the bandleader who entertained millions of Americans over a generation of broadcasting his TV show, once received a patent: for a music-themed design of an ashtray.
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.
| Number | Title | Issue Date |
| RE39536 | Method and plant utilizing fine coal in a melter gasifier In a method for the production of liquid metal, in particular liquid pig iron (9) or liquid steel pre-products, from metal carriers, in particular partially reduced or reduced sponge iron (3), in a melter gasifier (1) in which with supply of a c... | 04/03/2007 |
| 7021223 | Method and apparatus for injecting gasification medium into particle-loaded gasification spaces Method and apparatus for injecting gasification medium into particle-loaded gasification spaces of fixed-bed, fluidized-bed or entrained-bed gasifiers by means of gasification-medium nozzles, wherein the supply portion the isorate of the gasification medium in the g... | 04/04/2006 |
| 6767383 | Method for producing pig iron The invention relates to a method for producing pig iron. Iron ore is reduced in a reduction shaft (1) for forming sponge iron which is subsequently introduced into the head of a melt-down gasifier (3). The sponge iron is melt open in said gasifier by ... | 07/27/2004 |
| 6669754 | Method for optimizing the layout and operation of a reduction method A description is given of a method of optimizing the design and operation of a reduction process for iron-containing charge materials (3), preferably in lump form, in a reduction shaft (1) to which reduction gas (9) is fed, for example from a fusion gasif... | 12/30/2003 |
| 6592646 | Method of producing direct reduced iron with use of coal-derived gas and apparatus In a method of producing direct reduced iron with use of a coal-derived gas, coal is heated to lower the moisture thereof, and the moisture-lowered coal is gasified in a coal gasification furnace to produce a coal-derived gas containing a reducing gas. Th... | 07/15/2003 |
| 6562102 | Method for producing liquid pig iron Process and apparatus for producing liquid pig iron or primary steel products from iron-containing material in lump form in a fusion gasifier (1), in which, with lump coal and oxygen-containing gas being fed in, and with simultaneous formation of a reduct... | 05/13/2003 |
| 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 |
| 6379423 | Device and method for producing sponge iron In a device for producing sponge iron from lumps of iron oxide in a reduction shaft (1), a hot, dust-containing and carbon monoxide-rich reduction gas is used. The reduction gas is generated in a gas generator by partial oxidation of solid carbon-containi... | 04/30/2002 |
| 6379422 | Direct smelting process A process for direct smelting metalliferous feed material is disclosed. Iron oxides are partially reduced in a solid state in a pre-reduction vessel. The partially reduced iron oxides are smelted to molten iron in a direct smelting vessel which contains a... | 04/30/2002 |
| 6332911 | Method and plant of utilizing fine coal in a melter gasifier In a method for the production of liquid metal, in particular liquid pig iron (9) or liquid steel pre-products, from metal carriers, in particular partially reduced or reduced sponge iron (3), in a melter gasifier (1) in which with supply of a carbon-cont... | 12/25/2001 |
| 6293991 | Process for producing liquid pig iron comprising recirculating agglomerated sludges In a method of producing molten pig iron (13) or molten steel pre-products from charging substances formed of iron ore (4), preferably in the shape of lumps and/or pellets, and optionally of fluxes (5), the charging substances are directly reduced to spon... | 09/25/2001 |
| 6277172 | Method of charging metal carriers to a melt-down gasifying zone In a method of charging metal carriers which contain a portion of fines and are at least partially reduced and carbon carriers to a melter gasifier (10) in which a melt-down gasifying zone (11) is maintained, the metal carriers and the carbon carriers are... | 08/21/2001 |
| 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 |
| 6264724 | Process for the production of spongy metal A plant for producing sponge metal, in particular sponge iron, from charging materials consisting of metal ore or iron ore respectively, preferably in lumps and/or pellets, and optionally fluxes, comprising at least one first gas source (1, 3) dispensing ... | 07/24/2001 |
| 6258148 | Method of charging metal carriers to a melt-down gasifying zone In a method of charging metal carriers which contain a portion of fines and are at least partially reduced to a melter gasifier in which a melt-down gasifying zone formed by a bed is maintained, the metal carriers and carbon carriers are fed into the melt... | 07/10/2001 |
| 6251162 | Process for the production of liquid pig iron or liquid intermediate products of steel In a method for producing liquid pig iron or liquid steel pre-products from charging substances comprising iron ore, preferably in lumps or pellets, and optionally fluxes. The charging substances are directly reduced to sponge iron in a reduction zone (12... | 06/26/2001 |
| 6235081 | Process for the production of spongy metal A method for producing a sponge metal from metal ore or iron ore which comprises reacting said metal ore or iron ore in a reduction zone with a CO-- and H2 -containing, reducing feed gas source which has been compressed, and after said reaction... | 05/22/2001 |
| 6235083 | Method for producing a reducing gas serving for the reduction of metal ore A method for producing a hot CO- and H2 -containing reducing gas utilized for the reduction of lumpy metal ore, in particular iron ore, which comprises forming the reducing gas in a gasification zone by the gasification of carbon carriers, in p... | 05/22/2001 |
| 6224647 | Process and device for charging a fusion gasifier with gasifying means and spongy iron The invention relates to a device comprising a fusion gasifier and a reduction shaft arranged thereabove and for reduction of iron ore in spongy iron. The spongy iron is introduced through horizontal discharge devices in the lower section of the reduction... | 05/01/2001 |
| 6214083 | Method and plant for producing iron from lumpy and fine-particulate sponge iron In a method of producing liquid pig iron or liquid steel pre-products from iron-oxide-containing material, fine-particulate iron-oxide-containing material is reduced to fine-particulate sponge iron by the fluidized bed method by passing a reducing gas thr... | 04/10/2001 |
| 6197088 | Producing liquid iron having a low sulfur content A method of liquid iron production using high sulfur fuels is provided in which the level of sulfur in the iron is maintained below 0.1%. The low sulfur content is achieved even in the presence of high sulfur concentrations in the reducing gases and witho... | 03/06/2001 |
| 6179896 | Process for producing liquid pig iron or semifinished steel products from ore In a method of producing molten pig iron (9) or steel pre-products from lump ore which in at least one reduction zone is reduced to partially and/or completely reduced sponge iron (4) in a shaft furnace, the sponge iron (4) is melted down in a melt-down g... | 01/30/2001 |
| 6171365 | Process for the production of liquid pig iron or liquid intermediate products of liquid steel and spongy metal In a method for producing liquid pig iron (16) and a sponge metal from charging substances comprising iron ore (4) respectively metal ore, the charging substances are directly reduced to sponge iron in at least one first reduction zone (2) the sponge iron... | 01/09/2001 |
| 6051048 | Production of fuel gas A first, solid, carbon-containing fuel is gasified and iron is melted in a gasifier-melter. A first flow of resulting fuel gas is employed to form the iron in a vertical shaft furnace by direct reduction of iron ore. A second flow of resulting fuel gas is... | 04/18/2000 |
| 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 |
| 5997608 | Process for the production of molten pig iron or molten steel, pre-products and sponge iron and a plant for carrying out the process In a process for the production of molten pig iron or molten steel pre-products and sponge iron from charging materials consisting of iron ore and, if desired, fluxes, direct reduction of the charging materials to sponge iron is carried out in a fixed-bed... | 12/07/1999 |
| 5989309 | Method for injecting fine iron ore in smelting reducing process A method for injecting fine iron ore in a smelting reducing process is disclosed, in which the carrier gas for the iron ore is the discharge gas from a melter gasifier without the need of separate carrier gas. It includes the steps of pre-reducing iron or... | 11/23/1999 |
| 5958107 | Shift conversion for the preparation of reducing gas A method of shift conversion of CO to H2 so that the level of gas can be reduced to a level that preheating for direct reduction to 800 to 900° C. can be accomplished wherein carbon deposition is not a factor.... | 09/28/1999 |
| 5846268 | Process for producing liquid pig iron or liquid steel preproducts and sponge iron as well as a plant for carrying out the process A process for producing liquid pig iron or liquid steel preproducts and sponge iron from iron ore. The iron ore in a first reduction zone (4) is directly reduced to sponge iron. The sponge iron in a meltdown gasifying zone (10) is melted under the supply ... | 12/08/1998 |
| 5676732 | Method 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... | 10/14/1997 |
| 5643354 | High temperature oxygen production for ironmaking processes A direct ironmaking process in which coal and oxygen are used directly for reducing ore and smelting the resulting sponge iron wherein a high-temperature ion transport membrane process recovers oxygen for use in the ironmaking process. Heat for oxygen rec... | 07/01/1997 |
| 5630862 | Method of providing fuel for an iron making process The invention provides a method for both disposing of an environmentally undesirable material comprising petroleum coke and the sulfur and heavy metals contained therein and of providing fuel for a process of making molten iron or steel preproducts and re... | 05/20/1997 |
| 5514203 | Process for producing an iron melt In a process for producing an iron melt, iron ore is reduced to sponge iron in a direct reduction zone. The sponge iron is melted in a meltdown gasifying zone while supplying carbon-containing material under gasification of the carbon-containing material ... | 05/07/1996 |
| 5397376 | Method of providing fuel for an iron making process The invention provides a method for both disposing of an environmentally undesirable material comprising petroleum coke and the sulfur and heavy metals contained therein and of providing fuel for a process of making molten iron or steel preproducts and re... | 03/14/1995 |
| 5354356 | Method of providing fuel for an iron making process The invention provides a method for both disposing of an environmentally undesirable material comprising petroleum coke and the sulfur and heavy metals contained therein and of providing fuel for a process of making molten iron or steel preproducts and re... | 10/11/1994 |
| 5338336 | Method of processing electric arc furnace dust and providing fuel for an iron making process The present invention provides a method for processing environmentally undesirable materials including petroleum coke and the sulfur and heavy metals contained therein and agglomerated waste dust from an electric arc furnace and the zinc, cadmium, lead an... | 08/16/1994 |
| 5320676 | Low slag iron making process with injecting coolant The invention relates to a method of making iron or steel preproducts and reduction gas with a low slag forming process utilizing petroleum coke as a fuel in a melter gasifier.... | 06/14/1994 |
| 5259865 | Very low slag iron making process The invention relates to a method of making iron or steel preproducts and reduction in gas a substantially slag free process utilizing petroleum coke as a fuel in a melter gasifier.... | 11/09/1993 |
| 5259864 | Method of disposing of environmentally undesirable material and providing fuel for an iron making process e.g. petroleum coke The invention provides a method for both disposing of an environmentally undesirable material comprising petroleum coke and the sulfur and heavy metals contained therein and of providing fuel for a process of making molten iron or steel preproducts and re... | 11/09/1993 |
| 5238486 | Method and furnace for production of liquid iron This non-blast process for the production of pig iron, cast iron, steel melt and nearly pure iron is carried out in a single furnace based on a tank-type design. Said types of iron melt can be produced in such single furnace individually or simultaneously... | 08/24/1993 |
