Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7427375 | Diffuser for an annealing furnace A diffuser (24) for an annealing furnace has a plurality of radially extending generally and vertically oriented vanes (40) for radially directing furnace gases. The vanes have top edges (42) defining a generally planar support and the top edges... | 09/23/2008 |
| 7282172 | Vertical shaft melting furnace A vertical shaft melting furnace is operated in a method that includes firing a plurality of burners to generate combustion products, and directing jets of the combustion products into the shaft in a bottom region of the shaft. The method further includes directing ... | 10/16/2007 |
| 7276205 | Injection device and process for the injection of a fluid The invention relates to an injection device for the reliable introduction of a fluid into a metallurgical vessel having a refractory lining, the device being removably insertable in the lining; comprising a refractory first body (2) and a refractory second b... | 10/02/2007 |
| 7273583 | Process and apparatus for uniform combustion within a molten material A submerged combustion burner having co-axial fuel and oxidant tubes forming an annular space therebetween, wherein the outer tube extends beyond the end of the inner tube. A burner nozzle having an outside diameter corresponding to the inside diameter of the outer ... | 09/25/2007 |
| 7193145 | Inbred maize line PH8KG An inbred maize line, designated PH8KG, the plants and seeds of inbred maize line PH8KG, methods for producing a maize plant, either inbred or hybrid, produced by crossing the inbred maize line PH8KG with another maize plant, and hybrid maize seeds and plants produc... | 03/20/2007 |
| 7140765 | Device and method for discrete and continuous measurement of the temperature of molten metal in a furnace or recepient for its production or treatment A device (10) for continuous measurement of the temperature of molten metal in a furnace or recipient for its production and treatment comprises a heat analysis instrument (14) placed in a lance (12) which blows inert gas and/or high-pressure co... | 11/28/2006 |
| 6903306 | Directional cooling system for vacuum heat treating furnace A furnace for heat treating of metal parts includes a hot zone enclosure defining a hot zone therein. The hot zone enclosure has a side wall, a first end wall, and a second end wall. The side wall has slots formed therethrough and along the length thereof. The heat ... | 06/07/2005 |
| 6533991 | Cooling gas injection nozzle for a vacuum heat treating furnace A nozzle for injecting a cooling gas in a vacuum heat treating furnace is described. The cooling gas injection nozzle according to the present invention has a forward portion with a first central opening formed therethrough. The cooling gas injection nozz... | 03/18/2003 |
| 6319458 | Pulverized coal injecting apparatus A pulverized coal injecting apparatus includes a cylindrical inner pipe for feeding pulverized coal into a tuyere of a blast furnace. A cylindrical outer pipe coaxially surrounds the inner pipe. A spiral swirler is formed on the surface of the inner pipe ... | 11/20/2001 |
| 5904895 | Apparatus for electric steelmaking A burner/injector for providing a localized impingement flame or multiple flames for scrap heating and melting through use of a fluid fuel and at least one oxygen rich oxidizing gas. The burner/injector includes a liquid-cooled combustor for generating an... | 05/18/1999 |
| 5788921 | Apparatus for electric steelmaking A burner/injector for providing a localized impingement flame or multiple flames for scrap heating and melting through use of a fluid fuel and at least one oxygen rich oxidizing gas. The burner/injector includes a liquid-cooled combustor for generating an... | 08/04/1998 |
| 5637541 | Aluminum nitride refractory materials and methods for using the same The present invention broadly relates to novel aluminum nitride matrix ceramic composite bodies for use as refractory materials and methods for making the same. The refractory materials are useful in environments which are corrosive, erosive, abrasive and... | 06/10/1997 |
| 5516734 | Aluminum nitride refractory materials and methods for making the same The present invention broadly relates to novel aluminum nitride matrix ceramic composite bodies for use as refractory materials and methods for making the same. The refractory materials are useful in environments which are corrosive, erosive, abrasive and... | 05/14/1996 |
| 5403794 | Alumina-zirconia refractory material and articles made therefrom A refractory article such as a slide gate plate, well block nozzle or like refractory component used in continuous casting of chemically aggressive grades of steel is made from a mixture containing about 50-85 wt. % alumina; about 5-30 wt. % alumina-zirco... | 04/04/1995 |
| 5286276 | Quenching system to prevent loss of fluidity in a reaction vessel A quench system which can be used to quench a continuous reaction such as the continuous digestion of titaniferous ores with sulphuric acid is provided. The quench system comprises a pressure vessel (1) equipped with a full bore outlet valve (5) connected... | 02/15/1994 |
| 5257280 | Gas introducing and stirring apparatus of metallurgical vessel The present invention has been devised to obtain a metallurgical effect by introducing refining gas into a molten metal in a metallurgical vessel and stirring the molten metal sufficiently by convection, and to improve durability of one nozzle or a few no... | 10/26/1993 |
| 5227118 | Top blowing refining lance The present invention relates to a refining lance. It relates more particularly to a lance of the kind used for supplying from above, onto a metal bath, the oxidizing gas required for refining the molten metal contained in a metallurgical vessel. It inclu... | 07/13/1993 |
| 5209893 | Adjustable burner insert and method of adjusting same An improved premix-type burner for a gas-fired metal processing furnace includes a burner insert externally adjustable over a stepless continuum. The burner insert includes a helical thread disposed on its outer diameter which cooperatively engages with a... | 05/11/1993 |
| 5167192 | Damper controller for a chemical recovery furnace A controller for a damper in a chemical recovery furnace relieves physical engagement between the damper mechanism and an operating handle therefor when such handle is being repositioned. The damper is repositioned to prevent interference with an adjacent... | 12/01/1992 |
| 5152952 | Device for unclogging a lance intended to be inserted into a metallurgical vessel This device comprises a fixed support constituted by a cylindrical collar 14, through which the lance 5 may be axially displaced and scraping fingers 16 whose extremities, which comprise cleaving means 21, may be held substantially in contact with the lan... | 10/06/1992 |
| 5001992 | Apparatus for regulating air flow through an air port of a chemical recovery furnace Apparatus for regulating air flow through an air port in a chemical recovery furnace. A plenum having an adjustable damper mounted inside a wind box associated with the furnace adjacent to the air port supplies and regulates the flow of air from the wind ... | 03/26/1991 |
| 4997167 | Ladle inoculant dispenser The present invention relates to a dispensing equipment for adding inoculants to the stream of molten iron flowing from the spout of a tilting ladle. The dispensing equipment comprises a hopper (4) for the inoculant which hopper has an outlet opening (5) ... | 03/05/1991 |
| 4938461 | Device for distributing gas into molten metal An impervious refractory plug clad in a metal canister, adapted for insertable registration in an opening in a refractory block of a ladle, is provided with an array of narrow peripheral passages formed in the plug's lateral surface to distribute a flow o... | 07/03/1990 |
| 4915362 | Carbon dioxide snow nozzle for metallurgy A carbon dioxide snow nozzle for in particular rendering a molten metal inert. The nozzle comprises a supply pipe supplying liquid carbon dioxide under pressure for connection to a source of liquid carbon dioxide under pressure, a T-shaped element having ... | 04/10/1990 |
| 4905971 | Refractory ceramic sink A refractory ceramic sink includes a frusto-conically shaped internal ceramic element having upper and lower end surfaces and an outer surface extending between the upper and lower end surfaces, and an external ceramic element encompassing the internal ce... | 03/06/1990 |
| 4898369 | Lance with metered core for treating molten metal Apparatus for introducing stirring and refining agents into molten metal in a vessel using a lance having a refractory body and a tube extending inwardly of a first end of the refractory body and terminating inwardly of a second end thereof. A plurality o... | 02/06/1990 |
| 4887800 | Tuyere of blast furnace A tuyere for a blast furnace comprises water-cooled tuyere; and a burner removably mounted inside the water-cooled tuyere to burning pulverize coal. The burner comprises an inner pipe, an intermediate pipe and an outer pipe which are concentrically arrang... | 12/19/1989 |
| 4865297 | Apparatus for melting and refining metals This invention relates to a lance/burner apparatus and a method for melting and refining metals. Combustion produced from an oxy-fuel or fuel-air-oxygen flame is used to preheat and melt scrap. Oxygen is introduced through a lance pipe into the molten scr... | 09/12/1989 |
| 4854553 | Self shielding lance Apparatus for introducing stirring and refining agents into molten metal in a vessel using a lance having an elongated refractory body with a bore extending inwardly of a first or upper end of the refractory body and terminating inwardly of a second or de... | 08/08/1989 |
| 4846080 | Apparatus for regulating air flow through an air port of a chemical recovery furnace Removable apparatus for regulating air flow through an air port in a chemical recovery furnace. A plenum mounted adjacent an air port inside a wind box associated with the furnace supplies combustion air from the wind box to the furnace through the air po... | 07/11/1989 |
| 4836433 | Device for introducing stirring gas into molten metal in metered amount A device for introducing stirring gas into a mass of molten metal in a container by way of an opening in the container and a pocket block having a plurality of metered passageways extending therethrough, the pocket block forming a portion of a refractory ... | 06/06/1989 |
| 4824080 | Apparatus for introducing gas into molten metal baths An apparatus for introducing gas into a molten metal bath contained within a refractory-lined vessel by the distribution of gas bubbles in the metal bath. The distribution is disbursed and covers a wide areas and mixing within the bath is improved. This i... | 04/25/1989 |
| 4815715 | Gas purging assembly for supplying gas to molten metal in a metallurgical vessel An assembly for use in supplying a gas through a metallurgical vessel into molten metal contained therein includes a refractory supporting block to be mounted within a wall or a bottom of the metallurgical vessel. The supporting block has an inner end dir... | 03/28/1989 |
| 4807854 | Leaching solution distribution arm and control therefor A rotatable leaching solution distribution arm is carried on a central chamber member and disposed in a tank at an elevation above another rotatable arm also carried by the member for distribution of a washing solution into the tank. The leaching solution... | 02/28/1989 |
| 4795138 | Metallurgical tuyere and method of calibrating same A tuyere is disclosed which is adapted for the injection of gases into a metallurgical vessel. The tuyere includes inner and outer concentric tubes having a radial separation therebetween which defines an annular gap. In use, one gas such as an oxygen mix... | 01/03/1989 |
| 4792125 | Consumable lance A consumable lance for introducing oxygen into molten metal. The lance is designed so that tubular oxygen passageways melt at a relatively low temperature thereby exposing refractory passageways and significantly improving the wear resistance of the lance... | 12/20/1988 |
| 4783059 | Tuyere for treating molten metal A tuyere for treating molten metal in a vessel in which bottom stirring gas blowing is desired has a tubular body member having a mounting flange inwardly of one end thereof by which the tuyere is positioned in the vessel through an opening in a side wall... | 11/08/1988 |
| 4783058 | Lance for treating molten metal A lance for treating molten metals useful for either inert gas stirring or injection of oxygen has an elongated refractory body formed in and around a metal tube in a portion of which a plurality of spirally wound metal tubes are positioned in side by sid... | 11/08/1988 |
| 4768756 | Converter for preparing steel and a gas supply device for such a converter A converter for preparing steel having a refractory lining including a wear lining is provided at its bottom with a plurality of gas supply devices for supply of stirring gas to the molten bath in the converter. Each gas supply device has a generally vert... | 09/06/1988 |
| 4746103 | Lance for blow-refinement in converter A lance for blow-refinement in a converter comprises a primary nozzle generating a high-velocity, high-pressure primary oxygen jet, and an auxiliary nozzle generating an auxiliary oxygen jet. The auxiliary oxygen jet formed by the auxiliary nozzle has a v... | 05/24/1988 |
