Quotables
"Radio has no future."
Lord Kelvin, British mathematician and physicist ; 1897
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 |
| 7060220 | Metal melting furnace In a metal melting furnace, a separation wall 60 is provided between an inclined hearth 30 and a molten metal reservoir 35 to define a molten metal processing portion 65. The separation wall is provided with a connecting passage 61... | 06/13/2006 |
| 7025936 | Method and apparatus for preparing a sample for analysis of precious metal content This invention relates to a method for assaying an ore sample to determine the concentration of gold and PGMs therein. The method comprises the steps of separating an ore sample, combining the prepared ore sample with a lead-containing flux, inductively heating the ... | 04/11/2006 |
| 6977058 | Inoculant-strainer with improved filtration effectiveness and inoculant dissolution A strainer for molten metal. The strainer comprises a well and a multiplicity of passages. Each passage comprises a first cavity a second cavity with a smaller equivalent diameter than the first cavity. A neck is between the first cavity and second cavity. An inocul... | 12/20/2005 |
| 6755890 | Method for reducing non-ferrous metal content in slag in the production of non-ferrous metals occurring in suspension smelting furnace The present invention relates to a method, whereby the non-ferrous metal content of the slag generated in the production of non-ferrous metals such as copper or nickel in a suspension smelting furnace is reduced by charging metallurgical coke, with a size ranging fr... | 06/29/2004 |
| 6589474 | One-body horizontal continuous casting apparatus and methods of deoxidation, and refining of phosphorized copper using said apparatus The present invention relates to a one-body continuous casting apparatus for fabricating a rod or slab shape of phosphorized copper by means of using a horizontal continuous casting process. Such invention contemplates designing and manufacturing a one-bo... | 07/08/2003 |
| 6533992 | Tundish A tundish of improved flow characteristics for molten metal has an outlet in its base. The outlet is spaced longitudinally of the tundish from a pour zone. The pour zone is positioned to receive a stream of molten steel from a ladle. An impact pad is prov... | 03/18/2003 |
| 6174492 | Forebay for am Metallurgical furnace A metallurgical furnace, preferably a metallurgical furnace for the production of copper, is equipped with a forebay. The forebay is in open communication with the settler of the furnace by a passageway that allows for the continuous removal of both slag ... | 01/16/2001 |
| 6156260 | Chamber for reception, lateral division and redirection of liquid metal flow A chamber for receiving a downward flow of liquid metal includes a generally horizontal base having a generally planar impact surface. A first faceted sidewall having a plurality of facets formed therein, generally extends upwardly from and encompasses th... | 12/05/2000 |
| 6074600 | Modification of tundish dam to minimize turbulence This invention relates to modifying the inside bottom surface of a tundish for continuous casting molten steel to minimize turbulence thereby reducing gas bubble and slag entrainment during continuous casting of steel, especially when initially filling of... | 06/13/2000 |
| 5963579 | Method of heating a molten metal in a continuous casting tundish using a plasma torch, and tundish for its implementation Method of heating molten metal in a tundish by irradiating a plasma torch on molten metal flowing along an internal surface of a heating compartment, and tundish configured for such method.... | 10/05/1999 |
| 5925165 | Process and apparatus for the 3-stage treatment of solid residues from refuse incineration plants In a method for processing solid residues from refuse incineration plants the slag is melted and heavy metals from the melt (16) are separated for reutilization. The slag is directly transferred from the refuse incineration plant into a first heating cham... | 07/20/1999 |
| 5882577 | Tundish A tundish of improved flow characteristics for molten metal has an outlet in its base. The outlet is spaced longitudinally of the tundish from a pour zone. The pour zone is positioned to receive a stream of molten steel from a ladle. An impact pad is prov... | 03/16/1999 |
| 5868955 | Feed reservoir intended for retaining a molten metal, and in particular a steel Feed reservoir intended for retaining a molten metal and in particular a steel, which reservoir comprises a refractory bottom, refractory walls, at least one nozzle placed in the refractory bottom in order to feed at least one mold with molten metal, a re... | 02/09/1999 |
| 5861121 | Chamber for reception, Lateral division and redirection of liquid metal flow A chamber for receiving a downward flow of liquid metal includes a generally horizontal base having a generally planar impact surface. A first faceted sidewall having a plurality of facets formed therein, generally extends upwardly from and encompasses th... | 01/19/1999 |
| 5810907 | Continuous melting apparatus for low-melting point metal, improved crucible for such apparatus, and melting method using such apparatus A continuous melting apparatus for a low melting point metal is disclosed. The apparatus includes a melting furnace main body (5) forming a combustion chamber (6) surrounded by a refractory lining, a crucible (1) formed with a tapping orifice (2) at an ap... | 09/22/1998 |
| 5800775 | Refractory block slag dam A dam surrounding a slag tap on a refractory covered, boiler-tube floor for holding back a protective slag layer. The dam is comprised of a plurality of adjacent refractory blocks mechanically secured to the refractory covered, boiler-tube floor near the ... | 09/01/1998 |
| 5762682 | Method and apparatus for processing ferrous materials In steel-making, there are conflicting processing requirements at different stages of the process. The method and apparatus of the invention creates different processing conditions at different stages of the process. Molten ferrous material (2) is stirred... | 06/09/1998 |
| 5673902 | Dual stage ceramic foam filtration system and method There is provided a dual stage ceramic foam molten metal filtration system and method. Coarse and fine filters are mounted adjacent to one another in a molten metal flow path. A convection preheat apparatus provides preheat for both filters. A vent struct... | 10/07/1997 |
| 5662862 | Device for guiding molten steel in a tundish A device is located between the outlet zone and the distribution zone of a tundish that is provided with a reheat system, such as a plasma torch, at one side of a heading chamber. The device includes a refractory unit pierced by at least a first conduit h... | 09/02/1997 |
| 5551672 | Apparatus for controlling molten metal flow in a tundish to enhance inclusion float out from a molten metal bath Flow control apparatus for enhancing inclusion float out in a continuous caster tundish comprising a dam positioned downstream from an impact pad and an energy source positioned between the dam and the exit nozzle of the tundish. The dam receives an incom... | 09/03/1996 |
| 5476249 | Ladle for the filtration of liquid metal over a filter medium with improved heating Ladle for the filtration of a liquid metal such as aluminum, magnesium, and their alloys over a filter medium of the gravel bed type. The ladle comprises a chamber in which the filter medium rests on a supporting grid, an inlet for supplying liquid metal ... | 12/19/1995 |
| 5456452 | Apparatus for making steel alloys in a tundish A method and apparatus are provided for making steel alloys directly in a tundish. Base steel enters the tundish from a ladle. An alloying chamber having a plurality of inlets is positioned above a tundish drain. An alloying material (for example, a wire ... | 10/10/1995 |
| 5388756 | Method and apparatus for removing contaminants from solder A method and apparatus allow for continuous removal of contaminants from solder. The solder is pumped from a main solder pot to an auxiliary solder pot through a skimmer valve which is heated to keep the solder molten. In the auxiliary pot, the solder is ... | 02/14/1995 |
| 5379989 | Tundish with improved flow control A tundish includes first and second flow control walls which define a flow receiving space. A plurality of outlets are located in the bottom of the tundish and toward the front thereof. Each flow control wall includes a plurality of openings located close... | 01/10/1995 |
| 5350440 | Furnace with deflecting surface and method of charging metal solids A furnace (1) has a main holding (2) and a charging well (4) into which molten metal from the holding portion is circulated by means of an electromagnetic pump (7). Metal enters the well as a tangential flow and a stationary turbulator (10) is located in ... | 09/27/1994 |
| 5338009 | Tundish for molten alloy containing dense, undissolved alloying ingredient A tundish has an entry location for receiving a molten alloy, such as steel, and bottom outlet openings for withdrawing the molten alloy. The tundish bottom comprises a sump located downstream of the inlet location and upstream of the outlet openings. Und... | 08/16/1994 |
| 5295667 | Tundish baffle with fluted openings A tundish baffle having a plurality of fluted openings is provided. The fluted openings interrupt and remove inclusions from molten metal passing through the baffle, using a plurality of obstructive peaks and valleys located at the perimeters of the openi... | 03/22/1994 |
| 5246209 | Tundish with improved flow control A tundish includes first and second flow control walls which define a flow receiving space. A plurality of outlets are located in the bottom of the tundish and toward the front thereof. Each flow control wall includes a plurality of openings located close... | 09/21/1993 |
| 5188795 | Metallic vapor condenser capable of circulating a liquid metal In a metallic vapor condenser for use in recovering, in the form of liquid metal, metallic vapor of a metal having a medium boiling point, the liquid metal of the molten metal is sent from a splash chamber to be circulated through a skimming sump, a cooli... | 02/23/1993 |
| 5183498 | Gas barrier for the refining superalloy The disclosure is made for the use of a hearth for receiving metals to be melted and exposing the molten metals to the furnace atmosphere with the upper surface of the molten metal free to float impurities such as oxides, carbides, or other undesirable ma... | 02/02/1993 |
| 5133535 | Impact pad with horizontal flow guides An impact pad for use in a tundish vessel utilizes outer and inner guides which partially surround the region of impact except in the direction of the one or more tundish drains. Much of the molten iron or steel entering the tundish is directed toward a d... | 07/28/1992 |
| 5131635 | Impact pad with rising flow surface An improved impact pad includes a plurality of channels which direct the flow of molten iron or steel toward the tundish drains, and ramps which elevate the flow in the directions of the drains. The ramps cause the molten iron or steel to follow a trajact... | 07/21/1992 |
| 5083753 | Tundish barriers containing pressure differential flow increasing devices Nozzles positioned in the bottom portion of tundish barriers, such as baffles, improve the flow of molten metal in the tundish.... | 01/28/1992 |
| 5071107 | Metallurgical tundish with filter Disclosed is a tundish apparatus for holding and filtering molten metal, such as steel, prior to the molten metal being continuously cast. An enclosure around the discharge orifice of the tundish accommodates a ceramic filter medium. The enclosure has a r... | 12/10/1991 |
| 5064175 | Method and devices for removing alumina and other inclusions from steel contained in tundishes Molten steel in tundishes can be contacted with high surface area ceramic shapes which remove the alumina and other impurities contained in steel. Certain ceramic shapes, in particular tundish baffles, having a large surface area which acts as alumina tra... | 11/12/1991 |
| 5026030 | Melting and holding furnace A melting and holding furnace comprising a preheating and melting chamber defining a preheating tower section in an upper position and a melting section in a lower position, a holding chamber communicating with the melting chamber, and a well communicatin... | 06/25/1991 |
| 4995592 | Purifying molten metal The invention relates to a means of purifying molten metal, particularly steel, by the removal of impurities/inclusions during continuous casting. The molten metal (3) is passed in a tundish (1) through a vertical array of baffles (8) that are spaced apart tra... | 02/26/1991 |
| 4993692 | Unitary tundish linings with flow-control devices A tundish consisting essentially of a rigid metallic outer casing having walls and a bottom at least one permanent layer of heat insulating material adjacent said casing, and a unitary, integrally formed expendable inner lining made of a hydrocarbon-free ... | 02/19/1991 |
| 4961563 | Tundish for ingot pouring A tundish system for teeming an entire heat from a furnace into a mold. The tundish includes a plurality of chambers; one chamber including a nozzle. The chambers are arranged to interrupt the flow of the heat from one chamber to another thereby causing b... | 10/09/1990 |
| 4958809 | Liquid metal launder A method of controlling the movement of particles entrained in a liquid metal flowing along a confined flow path having a substantially horizontal base characterized by the steps of: (1) disposing a first planar device within the flow path to cause the sh... | 09/25/1990 |
