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| Number | Title | Issue Date |
| 7303060 | Material conveying system without dust rising A material conveying system without dust rising, having a plurality of trays; a transmission mechanism, for carrying the trays and transmitting the trays in motion; and a controller, for controlling the transmission mechanism, is characterized in that the material c... | 12/04/2007 |
| 6948930 | Furnace head or furnace throat seal A blast furnace head (11) including a material loading device comprising rotary chute (14) driven in rotation about a first, vertical axis of rotation (16), and a loading chute (15) at the outlet of same, driven in rotation about a second... | 09/27/2005 |
| 6797032 | Method for measuring bath level in a basic oxygen furnace to determine lance height adjustment The present invention is directed a method for adjusting the height of a lance with respect to a bath surface of any selected heat manufactured in a metallurgical vessel during a continuing series of heats. ... | 09/28/2004 |
| 6514455 | Heating apparatus of a workpiece of distorted shape, and a quenching apparatus for simultaneous operation of multiple cams and a quenching method for the same Rotation of a plate cam arranged at almost the center position of a semi-open coil is performed by a motor, and induction heating of the periphery of the plate cam is performed by the semi-open coil during the rotation. The process results in uniform heat... | 02/04/2003 |
| 6440355 | Apparatus for measuring bath level in a basic oxygen furnace to determine lance height adjustment The present invention is directed to an oxygen lance crane assembly that includes a measuring device positioned to take measurements to a target area within a BOF vessel. The measuring device includes an optical head for receiving and directing an energy ... | 08/27/2002 |
| 6406515 | Process and device for purification of aluminum by segregation An aluminum bloom more than 99.95% pure is obtained by segregation of aluminum from an impure parent liquor. Heat supplied to the parent liquor during growth of the bloom is adjusted as a function of the height of the bloom.... | 06/18/2002 |
| 6306336 | Apparatus and method of continuous sintering a web material An apparatus is disclosed for continuously sintering a web material with a sintering furnace. An input refractory drive unrolls a refractory material from an input refractory roll and feeds the refractory material upon a furnace conveyor of the furnace. A... | 10/23/2001 |
| 6261513 | Device for directly monitoring the charging process on the inside of a shaft furnace A device for direct observation of the charging process inside a shaft furnace during its operation, in particular a blast furnace, with a measuring lance, which is arranged above the charge column in the shaft furnace in such a way that it is exposed to ... | 07/17/2001 |
| 6228142 | Apparatus for keeping optimal penetration depth formed at front end of oxygen tuyere and method for keeping the same An apparatus for keeping an optimal penetration depth formed at the front end of an oxygen tuyere in the producing facilities of molten pig iron utilizing non-coking coal and a method for keeping the same. A sensor for measuring distance using a laser for... | 05/08/2001 |
| 6069348 | Method and apparatus for inductively heating non-circular workpieces Apparatus for inductively heating and hardening diesel cam shaft lobes includes a table supporting an inductor for radial displacement relative to the lobe of a workpiece to be hardened and a master component having a lobe identical to that of the workpie... | 05/30/2000 |
| 5885521 | Apparatus for rapid reduction of iron oxide in a rotary hearth furnace A method and apparatus for producing direct reduced iron from dry compacts composed of iron oxide and carbonaceous material by feeding compacts no more than two layers deep onto a hearth and removing all the volatiles and metallizing the compacts by expos... | 03/23/1999 |
| 5700335 | Process and device for regulating the calorific output in a continuous annealing and processing line for continuously cast metal products A process and device are disclosed for regulating the annealing power in at least one annealing section of a continuous annealing and processing line for continuously cast metal products. The speed of the cast products (D) passing through the continuous a... | 12/23/1997 |
| 5616295 | Floating furnace In the furnace a plurality of floaters are arranged in series in a direction in which the metal strip is transferred. The strip is fed through the furnace, floated by these floaters. A test floater is installed along the strip transfer pathway. The height... | 04/01/1997 |
| 5314168 | Apparatus and method for controlling operation of quenching car/bucket for coke oven An apparatus for controlling drive or operation of a quenching car and/or a bucket car for a coke oven and a method therefor, capable of effectively accomplishing the automatic control of the operation of the quenching car/bucket car. A quenching car/buck... | 05/24/1994 |
| 5302215 | Method and apparatus for selectively heating a workpiece subjected to low temperature thermomechanical processing Process and apparatus are provided for selective heating a portion of a workpiece to achieve improved ausforming and isoforming processes when the workpiece is plastically deformed by mechanical working above the Ms temperature. The process and... | 04/12/1994 |
| 5268018 | Controlled process for the production of a spray of atomized metal droplets A process and apparatus for producing a spray of atomized metal droplets includes providing an apparatus that forms a spray of molten metal droplets, the apparatus including a metal source and a metal stream atomizer, producing a stream of liquid metal fr... | 12/07/1993 |
| 5221513 | Apparatus and method for net shape finishing of gears An apparatus is disclosed for performing thermomechanical processing of gears in which precise control of the thermal, metallurgical and mechanical action during the forming process is maintained. The apparatus comprises an induction heating system which ... | 06/22/1993 |
| 5176874 | Controlled process for the production of a spray of atomized metal droplets A process and apparatus for producing a spray of atomized metal droplets includes providing an apparatus that forms a spray of molten metal droplets, the apparatus including a metal source and a metal stream atomizer, producing a stream of liquid metal fr... | 01/05/1993 |
| 5043735 | Device for determining the topographic map of the loading surface of a shaft furnace A radar probe including several individual scanning antennas is mounted in the wall of the furnace above the loading surface and performs a two-dimensional scanning of the entire loading surface.... | 08/27/1991 |
| 5009395 | Method and apparatus for selectively heating a workpiece subjected to low temperature thermomechanical processing Process and apparatus are provided for selective heating a portion of a workpiece to achieve improved ausforming and isoforming processes when the workpiece is plastically deformed by mechanical working above the Ms temperature. The process and... | 04/23/1991 |
| 4913406 | Shaft furnace having means for charging and adjusting a pre-mixture of ore and coke A method for operating a shaft furnace is performed by charging different ore/coke ratio mixture in radially different positions in the furnace. The ore/coke mixture ratio may be determined according to desired heat distribution in radial direction. For t... | 04/03/1990 |
| 4858892 | Device for determining the charge profile in a shaft furnace Device for determining the charge profile in a shaft furnace. In order to be able to scan the entire burden surface at least over a right-angle graticule, a radar unit is arranged at the front end of a tubular lance, which latter can be radially introduce... | 08/22/1989 |
| 4776884 | Process for determining the arrangement of the layered charges in a blast furnace prior to smelting A process for determining the arrangement of the layered charges in a blast furnace prior to smelting. Positioned in the layered charges in the blast furnace are a plurality of upright tubes in each of which an eddy current probe is moved up and down. The... | 10/11/1988 |
| 4773946 | Device for controlling operating gap of cutting head and method of using same There is provided a device for controlling the vertical operating gap between the lower end of a cutting head, such as a frame cutting torch, and a generally flat workpiece positioned below the cutting head as the head and workpiece are moved relative to ... | 09/27/1988 |
| 4583717 | Method for pouring molten metal This invention relates to a method for pouring molten metal, that is applied when molten metal is poured into a vessel or a mold from a pouring apparatus provided with a nozzle having a sliding portion adjustable of an extent of opening, such as a sliding... | 04/22/1986 |
| 4575053 | Continuous annealing apparatus A continuous annealing apparatus for metal strips comprises cylindrical rolls each arranged at a location immediately before the metal strip passes about a hearth roll in a high temperature heat-treatment region of the apparatus. An axis of the cylindrica... | 03/11/1986 |
| 4542272 | Induction heating device with electronic positioning control An induction heating apparatus particularly adapted for precisely positioning the inductor relative to the workpiece before initiating the heating process. The inductor is mounted on the end of an inductor shaft that is carried by a slide. The end of the ... | 09/17/1985 |
| 4515350 | Simultaneous multi-point sounding apparatus A simultaneous multiple points sounding apparatus, comprising a plurality of weights to be suspended on burden charged in a furnace, a plurality of wire ropes attached to the weights with their one ends and extending at their other ends outside of the fur... | 05/07/1985 |
| 4378993 | Method and apparatus for measuring height level of melting zone in blast furnace A desired number of cables are drawn, along with the falling charge, into a blast furnace from its top and the forward ends of the cables are melted upon reaching the melting zone in the furnace. The length of each of the cables to its melted end is measu... | 04/05/1983 |
| 4355787 | Method of controlling the nozzle damper of a metallurgical vessel Disclosed is a method of controlling the nozzle damper (slide valve) of a vessel for the metallurgical casting, in response of the variation of the molten metal level of the volume of molten metal tapped from said vessel the nozzle opening is stepwise con... | 10/26/1982 |
| 4318439 | Hot steel cutting apparatus A cutting apparatus lights the surface of a moving hot steel material with lamps, locates any flaw with a video camera or the like, scarfs the surface of the steel material adjacent the flaw with a scarfing torch, measures the depth of the flaw with an ed... | 03/09/1982 |
| 4316717 | Method of controlling strip temperatures A method of controlling strip temperatures of two joined metal strips of dissimilar gauges but requiring essentially the same heat treatment temperatures, is described. The normal processing temperature is higher than the temperature to which it is desire... | 02/23/1982 |
| 4290067 | Radiant energy profilometer A non-contacting surface contour measurement device includes movable member which can selectively be actuated to form a hermetic enclosure about a transmit and/or receive antenna. The measurement device, when employed in a blast furnace, need be exposed t... | 09/15/1981 |
| 4230308 | Automated casting line supply system A heated ladle provides a reserve of molten metal. Vertical closing rods release desired quantities into pouring troughs. These are indexed into alignment with the mold casting orifices. The system includes a chassis movable parallel to the step-by-step m... | 10/28/1980 |
| 4197495 | System for controlling the charge distribution and flow in blast furnace operations using magnetic sensors positioned within the charge A furnace operation system, comprising, a plurality of hollow tubes arranged in place at a position lower than the raw material charging level in the furnace, and running through the body of the furnace, said hollow tubes being arranged in place into a mu... | 04/08/1980 |
| 4123707 | Magnetic field sensor housed in a cooling device for sensing the charge in a shaft furnace or the like A magnetic field sensor housed in a cooling device has an inner core body for measuring the behavior of a charge put in a shaft furnace, an inner casing for accommodating the inner core body therein, and an outer casing for accommodating the inner casing ... | 10/31/1978 |
| 4122392 | System of detecting a change in the charge put in a metallurgical furnace or the like A system of detecting a change in the charge put in a metallurgical furnace or the like wherein an magnetic field generator and a magnetic sensing section of a magnetometer arranged along the central axis of the exciting magnetic field of the said magneti... | 10/24/1978 |
| 4121087 | Method and apparatus for controlling laser welding A method and apparatus is provided for laser welding which utilizes the power reflected by the surface being welded to control the power input to the weld. A beam of laser light is projected on the surface to be welded and the power of the light reflected... | 10/17/1978 |
| 4119303 | Method and device for precipitating copper cement from a copper solution mixed with iron Improved method and apparatus for the precipitation of cement copper from a copper solution mixed with pieces of iron. The cement copper depositing on the iron pieces is loosened therefrom by means of constant movement of such pieces and then is separated... | 10/10/1978 |
| 4094494 | Furnace charge profile measuring process and apparatus The surface contour of material deposited on the hearth of a furnace is sensed by measuring the height of the material on the furnace axis and at a plurality of points about the periphery of the furnace. The height on the furnace axis is measured with an ... | 06/13/1978 |
