Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 7611666 | Tundish dry vibratable form A mold dimensioned to be positioned within a refractory-lined tundish. The mold has an upper wall and a side wall extending downwardly from the upper wall, the side wall having a shape generally conforming to the shape of the internal cavity of the tundish and havin... | 11/03/2009 |
| 7302779 | Method and apparatus for masonry chimney flue repair An apparatus for repairing cracks, crevices, joints, and other discontinuities in a chimney flue liner, comprises a flexible, resilient applicator having a liquid impervious rubberized coating. An electrical vibrator is installed within the applicator, for tamping t... | 12/04/2007 |
| 7195479 | Hot liner insertion/removal fixture A fixture (30) adapted to permit the heated exchange of a liner (14) from an operating vertical furnace (10). The fixture is adapted to secure to the base of the liner (14) to both unlock and lower the heated liner, such as a silicon carb... | 03/27/2007 |
| 7169439 | Methods for repairing a refractory wall of a high temperature process vessel utilizing viscous fibrous refractory material Systems and methods are provided whereby pumpable viscous fibrous material may be applied onto surfaces of high temperature process vessels while hot (i.e., while at or near such vessels' high operational temperatures of several hundreds up to several thousands of d... | 01/30/2007 |
| 7140869 | Distributor of mixes consisting of agglomerated ceramic or stone material for filling a mold A mix distributor (10) for filling a tray-like mold (100) comprises a fixed structure (20), having a distribution surface (24) supporting a mold (100), and a movable housing (30), displaceable above the mold (100) The... | 11/28/2006 |
| 7114663 | Thermally protected lance for repairing high temperature process vessel walls with pumpable fibrous refractory material and systems employing the same Systems and methods are provided whereby pumpable viscous fibrous material may be applied onto surfaces of high temperature process vessels while hot (i.e., while at or near such vessels' high operational temperatures of several hundreds up to several thousands of d... | 10/03/2006 |
| 7080441 | Composite fuselage machine and method of automated composite lay up A device for automated composite lay up of a part to be manufactured—such as a large aircraft fuselage—includes a mandrel having a vertical axis and an interior mandrel surface that conforms to an outside mold line of the part. A vertical movement shaft is dispo... | 07/25/2006 |
| 7073974 | Process and apparatus for highway marking A system for forming and applying a coherent refractory mass on the surface of a road wherein one or more non-combustible materials are mixed with one or more metallic combustible powders and an oxidizer, igniting the mixture so that the combustible metallic particl... | 07/11/2006 |
| 7059383 | Molten metal handling apparatus An integral molten metal casting device comprising: a crossfeeder having an interior surface defining a partial cylinder of a first diameter; a generally cylindrical thimble having an interior surface of a second smaller diameter; and back-up insulation; all formed ... | 06/13/2006 |
| 7052202 | Process and apparatus for highway marking A process and apparatus for forming a coherent refractory mass on the surface of a road wherein one or more non-combustible materials are mixed with one or more metallic combustible powders and an oxidizer, igniting the mixture so that the combustible metallic parti... | 05/30/2006 |
| 6969214 | Process and apparatus for highway marking A process and apparatus for forming a coherent refractory mass on the surface of a road wherein one or more non-combustible materials are mixed with one or more metallic combustible powders and an oxidizer, igniting the mixture so that the combustible metallic parti... | 11/29/2005 |
| 6941653 | Method and apparatus for forming a refractory lining in a coreless furnace A refractory lining is formed in a furnace by providing a carrier for a lining form which has dimensions that provide a uniform space for the introduction of refractory material when the lining form is concentrically located within the furnace. The carrier concentri... | 09/13/2005 |
| 6780351 | Vessel inspection and repair system The disclosed methods and systems for inspecting and repairing vessels include a laser used to project a laser beam into a hot furnace or vessel, a laser reader to measure a point cloud formed when the laser light reflects from the wall of the furnace, means for sel... | 08/24/2004 |
| 6746644 | Process and apparatus for curing resin-bonded refractory brick lined ladles An improved process of curing resin-bonded refractory brick lining of a ladle within a housing by heating the brick in air at an effective temperature to produce resin vapors and transferring the vapors from the ladle comprising transferring the vapors at a temperat... | 06/08/2004 |
| 6565798 | Method of relining a vessel A method of relining a vessel that is used to carry out a direct smelting process that produces molten metal under conditions requiring molten bath temperatures of at least 1000° C. is disclosed. The vessel is of the type that has a floor that is refract... | 05/20/2003 |
| 6254665 | Method for producing reduced iron agglomerates A moving hearth is formed by providing a layer of hearth material primarily composed of iron oxide on a base refractory in a reducing furnace and then sintering the hearth material so that the sintered moving hearth is not melted at an operational tempera... | 07/03/2001 |
| 6153130 | Method of installing a form in a foundry furnace A spacing tool to be inserted between a form and a foundry furnace during installation of the form in the foundry furnace comprises a first longitudinally extending member to contact the foundry furnace. A second longitudinally extending member is coupled... | 11/28/2000 |
| 5993703 | Process for producing steel casting ladle monolithic refractory lining When the wall and bottom of a steel casting and handling ladle are provided at the same time with a refractory monolithic lining, the lining in the lower area of the wall is often damaged during intermediate repairs of the bottom. According to a new proce... | 11/30/1999 |
| 5958312 | Process for the partial reconstruction of the refractory lining of the wall of steel casting ladles It was difficult until now to carry out intermediate repairs of monolithic refractory lining walls of steel casting and handling ladles when the slag area of the lining was worn before other areas. According to this new process for reconstructing the refr... | 09/28/1999 |
| 5916500 | Method of lining a blast furnace A method is provided for installing a refractory lining in a blast furnace or other metallurgical vessel. A consumable form is installed along an inner surface of an outer shell of the metallurgical vessel. The consumable form is spaced apart from the out... | 06/29/1999 |
| 5833895 | Method for partially building and/or repairing at high temperatures industrial facilities including a structure made of refractory materials, and prefabricated element therefor A method for repairing industrial facilities at high temperatures using at least one prefabricated element made of a -mullite-crystallized refractory product with an alumina content of 30-85%, preferably 50-80%, made of refractory materials securely attac... | 11/10/1998 |
| 5788159 | Method and apparatus for applying compositions A circular, surface-coating application of sprayable composition or mortar is achieved through a rotatable spray head with at least one lateral discharge opening. The composition or mortar is distributed as uniformly and over as large a surface area as po... | 08/04/1998 |
| 5772931 | Slag coating process A process for coating the walls of a steelmaking vessel with slag between heats to protect the refractory liming of the vessel uses coolant in the form of recycled slag as a substitute for fluxes such as lime and dolime to cool and thicken slags which are... | 06/30/1998 |
| 5695558 | Vessel repair The invention relates to the repair of vessels, particularly refractory-lined vessels such as are used in steelmaking. Frequently there is wear on the lining of such vessels sufficient to prevent the use of the vessel without repair but insufficient to ju... | 12/09/1997 |
| 5645772 | Refractory ceramic mass for lining the bottoms of electric arc furnaces and process for their repair A process for repairing bottom linings of D.C. arc furnaces. A refractory ceramic mass is used for lining the bottoms of D.C. arc furnaces in the area of metallic electrodes placed therein, wherein the refractory ceramic mass comprises one or more refract... | 07/08/1997 |
| 5628940 | Process for applying low-cement castable refractory material A method for placing a thixotropic low-cement castable refractory material without the necessity for forms. A low-cement castable material is mixed with a measured amount of water, then is pumped hydraulically through a hose to a nozzle assembly. Compress... | 05/13/1997 |
| 5601051 | Apparatus for repairing the refractory lining of a refractory vessel Refractory material is applied to the interior surface of a vessel by advancing a boom carriage on a frame positioned externally of the vessel through an opening in the vessel. The boom carriage supports a collapsed telescoping mast and a nozzle boom. The... | 02/11/1997 |
| 5511762 | Consumable form with degradable lining A method of manufacturing an open top, walled member for containing a molten metal, including the steps of forming an inner wall of a mold with a metal sheet and an inner lining covering the sheet, wherein the inner wall defines an inside surface of the w... | 04/30/1996 |
| 5505893 | Method for manufacturing and repairing molten metal containment vessels A method of manufacturing an open top, walled member for containing a molten metal, especially a flowing molten metal or reconstructing a worn or damaged member. The method includes the step of forming the inner walls of a mold which define the inner surf... | 04/09/1996 |
| 5494267 | Pumpable casting composition and method of use An improved castable refractory composition having excellent resistance to attack from slag can be efficiently transported to a destination, such as a mold, using a pump. The castable refractory composition includes about 36-92% by weight silicon carbide,... | 02/27/1996 |
| 5484138 | Consumable form with adjustable walls An adjustable form used for forming or repairing a refractory lining includes an adjustable frame constructed from a plurality of intersecting beams, at least some of which are adjustable, and a form connected to the adjustable frame. The frame can be adj... | 01/16/1996 |
| 5435948 | Surface treatment of refractories A process for cleaning a surface of a refractory structure which is at an elevated temperature, including projecting against the surface a comburent gas stream which is a powder stream including fuel particles carried in an oxygen-containing carrier gas t... | 07/25/1995 |
| 5419669 | Installation for lining an internal wall of an enclosure with brickwork An automated installation for lining a wall of an enclosure with brickwork is presented. This installation comprises a brick laying robot, a depalletizing module, a lifting module, a supply module and a centering ring module. At the level of the centering... | 05/30/1995 |
| 5395096 | Drop-in furnace lining A cast refractory and back-up insulation are positioned on a lifting frame for convenient placement in, and removal from, the furnace shell of an aluminum or other metal refining system. Furnace lining replacement is thereby readily accomplished at the op... | 03/07/1995 |
| 5360200 | Lining of molten metal handling vessel An expendable lining may be applied over the interior walls of a metal handling vessel for molten metal, e.g. a tundish. The expendable lining is usually applied over a relatively permanent, e.g. refractory brick, lining. If the expendable lining is forme... | 11/01/1994 |
| 5340088 | Metallurgical vessel and method of making the refractory lining of such vessels The invention relates to a metallurgical vessel, in particular a transport ladle or a treating ladle, for the production of steel with a bottom (2b) having a refractory lining (3) with a basic working layer (5). In order to create a durable lining it is p... | 08/23/1994 |
| 5330690 | Process and apparatus for renewing the refractory lining of foundry ladles A process for renewing the refractory lining of a ladle for casting steel and of similar metallurgical vessels. While the ladle (10) is still hot, the slag (S) still adhering to the inner surface (26) is melted off from the remaining lining (2) with the a... | 07/19/1994 |
| 5242639 | Ceramic welding process In ceramic welding processes, oxidising gas and a mixture of refractory and fuel powders are projected against a surface and the fuel is burnt to generate sufficient heat that the refractory powder becomes at least partially melted or softened and a cohes... | 09/07/1993 |
| 5217658 | Method for repairing a hot-blast long-time cupola furnace A method for repairing a hot-blast, long-time cupola furnace by removing residual slag and relining the cupola furnace including feeding liquid nitrogen to the cupola furnace immediately at the end of a smelting operation and simultaneously with the feedi... | 06/08/1993 |
| 5202090 | Apparatus for ceramic repair Apparatus for repairing a refractory body, such as a furnace wall by projecting combustible particles in an oxygen-rich carrier gas against such body to cause oxidation of combustible particles in a reaction zone adjacent such body and thereby the generat... | 04/13/1993 |
