| Patent Number |
Title Of Patent |
Date Issued |
| 6159293 |
Magnetic containment of hot dip coating bath |
December 12, 2000 |
| A hot dip coating system comprises a bath of molten coating metal contained in a vessel having a strip passage opening located below the top surface of the bath. A metal strip is directed along a path extending through the strip passage opening and through the bath of molten coating meta |
| 6107595 |
Method for resistance welding with dilution metal and product thereof |
August 22, 2000 |
| Two steel members are resistance welded using a filler therebetween in the form of either an insert or a metallized layer on the inner surface of one steel member. The steel members have respective compositions at least one of which comprises at least one alloying element having a concen |
| 6037011 |
Hot dip coating employing a plug of chilled coating metal |
March 14, 2000 |
| A hot dip coating system comprises a bath of molten coating metal contained in a vessel having a strip passage opening located below the top surface of the bath. A metal strip is directed along a path extending through the strip passage opening and through the bath of molten coating meta |
| 6020039 |
Automobile door impact beam |
February 1, 2000 |
| An improved strengthening or reinforcing member, and in particular an automotive vehicle door reinforcing beam, constructed from ultra high strength steel is disclosed. The door reinforcing beam has a substantially trapezoidal shaped cross-sectional geometry and optionally can include an |
| 5858135 |
Method for cold rolling and annealing strip cast stainless steel strip |
January 12, 1999 |
| A method for producing strip cast, austenitic stainless steel strip comprises providing a strip cast strip having an initial microstructure including a detrimental amount of delta ferrite and a detrimental amount of dendritic structure is provided. The strip may have a composition co |
| 5837328 |
Method for providing in-line application of solid lubricant to steel strip |
November 17, 1998 |
| A solid lubricant application procedure is combined in-line with a steel strip processing method which comprises processing steps upstream and downstream of the lubricant application procedure. The latter comprises applying the lubricant material in molten form or as a solution and may |
| 5827576 |
Hot dip coating method and apparatus |
October 27, 1998 |
| A hot dip coating apparatus and method for coating a continuous steel strip, wire, or like continuous member with zinc, aluminum, tin, lead, or alloys of each. A molten coating bath is contained in a vessel having a bottom opening upwardly through which the steel member is directed. |
| 5695001 |
Electromagnetic confining dam for continuous strip caster |
December 9, 1997 |
| An electromagnetic dam is employed to confine a vertically disposed pool of molten metal at the open end of the space between two counter-rotating, casting rolls in a continuous strip caster. The dam comprises three magnetic flux conductors each having a pair of spaced-part surfaces |
| 5620513 |
In-line application of solid lubricant to steel strip |
April 15, 1997 |
| A solid lubricant application procedure is combined in-line with a steel strip processing method which comprises processing steps upstream and downstream of the lubricant application procedure. The latter comprises applying the lubricant material in molten form or as a solution and may |
| 5616367 |
In-line application of solid lubricant to steel strip |
April 1, 1997 |
| A solid lubricant application procedure is combined in-line with a steel strip processing method which comprises processing steps upstream and downstream of the lubricant application procedure. The latter comprises applying the lubricant material in molten form or as a solution and may |
| 5605371 |
Light weight steel auto body construction |
February 25, 1997 |
| An automobile body panel has an outer contour-defining component and an inner structural component. The inner structural component comprises a front member, a rear member, a plurality of side members, a central region defined by the front, rear, and side members, and at least one interna |
| 5562152 |
Strip casting apparatus with electromagnetic confining dam |
October 8, 1996 |
| A strip casting apparatus comprises a pair of counter-rotating casting rolls having a vertically extending, arcuately tapering gap therebetween for containing a pool of molten metal. The gap has an open end near which is an electromagnetic dam for preventing the escape of molten metal |
| 5555756 |
Method of lubricating steel strip for cold rolling, particularly temper rolling |
September 17, 1996 |
| A method of processing steel strip such that the steel strip can be temper rolled at the increased speeds and better surface texture control of prior art dry lubricants, yet the steel strip can be temper rolled with less frequent replacement of temper mill working rolls. Further, the res |
| 5554233 |
Cold deformable, high strength, hot rolled bar and method for producing same |
September 10, 1996 |
| A billet of steel has a composition comprising small amounts of hardenability agents. The billet is hot rolled into a continuous bar, in two hot rolling stages with an intervening cooling step employing a turbulent cooling liquid. After the second hot rolling stage, the bar is gather |
| 5520718 |
Steelmaking degassing method |
May 28, 1996 |
| A method for degassing molten steel comprises the use of a lift gas which includes carbon dioxide. The inventive method includes providing a reaction zone isolated from the ambient atmosphere, and providing a bath of molten steel, at least a portion of which is located in the reaction |
| 5520373 |
Steelmaking degassing apparatus |
May 28, 1996 |
| A method for degassing molten steel comprises the use of a lift gas which includes carbon dioxide. The inventive method includes providing a reaction zone isolated from the ambient atmosphere, and providing a bath of molten steel, at least a portion of which is located in the reaction |
| 5513692 |
Electromagnetic confinement of molten metal with conduction current assistance |
May 7, 1996 |
| An electromagnetic confining apparatus prevents the escape of molten metal through the open end of a vertically extending gap between two horizontally extending members, such as two counter-rotating rolls of a continuous strip caster. The molten metal is located between the two membe |
| 5495886 |
Apparatus and method for sidewall containment of molten metal with vertical magnetic fields |
March 5, 1996 |
| A magnetic confining method and apparatus in accordance with the present invention generates, adjacent the open side of the roller gap, a primary vertical magnetic field (a) resulting from direct current (D.C.) or alternating current (A.C.) flowing through a coil surrounding a core of a |
| 5494095 |
Apparatus for continuous casting of molten steel |
February 27, 1996 |
| A non-magnetic material having a relatively high electrical resistance, such as austenitic stainless steel, is used for the material of construction of the mold utilized in a conventional continuous casting apparatus, or in a rheocasting apparatus or in a continuous strip casting app |
| 5487421 |
Strip casting apparatus with electromagnetic confining dam |
January 30, 1996 |
| A strip casting apparatus comprises a pair of counter-rotating casting rolls having a vertically extending, arcuately tapering gap therebetween for containing a pool of molten metal. The gap has an open end near which is an electromagnetic dam for preventing the escape of molten metal |
| 5482107 |
Continuously cast electrical steel strip |
January 9, 1996 |
| A molten silicon steel is continuously strip cast to a thickness approaching the aim final thickness of magnetic core laminations that are to be punched from the resulting steel strip. The strip is temper rolled and then annealed to produce stress relief and secondary grain growth. R |
| 5473133 |
Projection resistance welding method |
December 5, 1995 |
| Two pieces of steel strip are welded together by a method employing projection resistance welding. A portion of one strip is formed with a series of aligned projections and arranged in superimposed relation with a portion of the other strip. The superimposed portions are moved through a |
| 5411812 |
Galvanized ultra-high strength steel strip |
May 2, 1995 |
| Ultra-high strength galvanized steel strip is produced from martensitic, plain carbon, steel strip which is pre-treated by induction heating rapidly or by fluxing, then hot dip galvanized and tempered, and then cooled to stop further tempering. The resulting galvanized steel strip has |
| 5403408 |
Non-uniaxial permanent magnet material |
April 4, 1995 |
| A permanent magnet material having the formula, in atomic %:wherein -3.3.ltoreq.z<3.3 and -2.0.ltoreq.w<2.0; orwherein -2.5.ltoreq.y<2.5 and -2.7.ltoreq.x.ltoreq.2.7; orwherein -1.5.ltoreq.r.ltoreq.1.5 and 0.ltoreq.q<6.5-r; and wherein TM is a transition metal, RE is a rare earth met |
| 5382405 |
Method of manufacturing a shaped article from a powdered precursor |
January 17, 1995 |
| A method of manufacturing a shaped article from a powdered precursor, wherein the components of the powdered precursor are subjected to a self-propagating high-temperature synthesis (SHS) reaction and are consolidated essentially simultaneously. The shaped article requires essentiall |
| 5379828 |
Apparatus and method for continuous casting of molten steel |
January 10, 1995 |
| A non-magnetic material having a relatively high electrical resistance, such as austenitic stainless steel, is used for the material of construction of the mold utilized in a conventional continuous casting apparatus, or in a rheocasting apparatus or in a continuous strip casting app |
| 5368656 |
Steel spring and method for producing same |
November 29, 1994 |
| A hot rolled steel bar is subjected to controlled hot roll finishing and cooling conditions which, together with the composition of the steel and controlled subsequent heat treating and quenching conditions, enable the formation of a steel spring having both relatively high hardness and |
| 5352430 |
Method of manufacturing intercalation compounds |
October 4, 1994 |
| A method of manufacturing an intercalation compound, such as a graphite intercalation compound, in a fluidized bed reactor. The intercalation compound comprises a host material, like graphite, and an intercalant and is essentially free of excess intercalant. |
| 5338009 |
Tundish for molten alloy containing dense, undissolved alloying ingredient |
August 16, 1994 |
| 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. Undissolved, molten alloying ing |
| 5284680 |
Method for producing a galvanized ultra-high strength steel strip |
February 8, 1994 |
| A method for producing ultra-high strength galvanized steel strip from a martensitic, plain carbon, steel strip which is pre-treated by induction heating rapidly or by fluxing, then hot dip galvanized and tempered, and then cooled to stop further tempering. The resulting galvanized steel |
| 5282906 |
Steel bar and method for producing same |
February 1, 1994 |
| A hot rolled steel bar is subjected to controlled hot roll finishing and cooling conditions which, together with the composition of the steel and controlled subsequent heat treating and quenching conditions, enable the formation of a steel spring having both relatively high hardness and |
| 5279350 |
Apparatus and method for magnetically confining molten metal using concentrating fins |
January 18, 1994 |
| A magnetic confining apparatus prevents the escape of molten metal through the open side of a vertically extending gap between two horizontally separated members and in which the molten metal is located. The apparatus includes a current conducting coil for generating a horizontal magneti |
| 5251685 |
Apparatus and method for sidewall containment of molten metal with horizontal alternating magnet |
October 12, 1993 |
| Molten metal, in the gap between two counter-rotating rolls of a continuous strip-casting apparatus, is prevented from leaking out of an open side of the gap by a magnetic confining apparatus which produces a horizontal magnetic field extending through the open side of the gap. The appar |
| 5246364 |
Method and apparatus for reducing sulfur dioxide content in flue gases |
September 21, 1993 |
| A method and apparatus are employed to reduce the sulfur dioxide produced by the combustion of a sulfur-containing fuel in a combustion chamber. Part of the combustion air is introduced into the combustion chamber with and closely adjacent the fuel. Another part of the combustion air is |
| 5178921 |
Burner block assembly and material |
January 12, 1993 |
| A lightweight burner block assembly includes (a) a relatively thick exterior shell, the exterior shell comprising a refractory material including fibrous alumina and silica and having an internal bore; and (b) a relatively thin, erosion resistant liner inserted into the internal bore |
| 5137045 |
Electromagnetic metering of molten metal |
August 11, 1992 |
| A descending stream of molten metal is electromagnetically metered by a primary coil surrounding an upstream portion of the stream. Alternating electric current flows through the coil, and the frequency of that current is controlled to optimize the electromagnetic efficiency (magnetic |
| 5048431 |
Method and apparatus for reducing sulfur dioxide content in flue gases |
September 17, 1991 |
| A method and apparatus are employed to reduce the sulfur dioxide produced by the combustion of a sulfur-containing fule in a combustion chamber. Part of the combustion air is introduced into the combustion chamber with and closely adjacent the fuel. Another part of the combustion air is |
| 5040175 |
Wireless information transmission system |
August 13, 1991 |
| A wireless local area network (10) includes a plurality of stations (12) adapted to transmit and receive message packets via a distribution system (30). In a time division multiplexing embodiment the network (10) operates using successive timing frames (FR1, FR2, etc.) each consisting of |
| 5027723 |
Method and apparatus for reducing sulfur dioxide content in flue gases |
July 2, 1991 |
| A method and apparatus are employed to reduce the sulfur dioxide produced by the combustion of a sulfur-containing fuel in a combustion chamber. Part of the combustion air is introduced into the combustion chamber with and closely adjacent the fuel. Another part of the combustion air is |
| 5020585 |
Break-out detection in continuous casting |
June 4, 1991 |
| A method and apparatus for predicting the likelihood of a break-out during continuous casting of molten metal in a vertical mold. A continuous determination is made of (a) the location within the mold of the molten metal level and (b) the peak temperature location within the mold, both i |
| 4999241 |
Coiled steel strip with solid lubricant coating |
March 12, 1991 |
| A coil of pre-lubed steel strip has a steel strip substrate coated on each surface with a uniform coating of solid lubricant. The coating has a coating weight greater than 20 mg/ft..sup.2 (0.22 g/m.sup.2) for lubricity during cold deforming of the strip, as by stamping or drawing. The co |
| 4989843 |
Retaining structure for refractory lining in high temperature vessel |
February 5, 1991 |
| A high temperature vessel, such as a ladle for containing molten metal, comprises a metal outer shell and a refractory inner lining. The interior of the vessel has a curved cross-section in a plane transverse to the center line of the vessel, and there is an opening at one end of the |
| 4949885 |
Apparatus and method for containing inert gas around molten metal stream |
August 21, 1990 |
| A molten metal stream descends from a ladle through a nozzle and then a shroud into a molten metal bath in a tundish. Structure is provided to contain a ring of inert gas around the nozzle immediately adjacent the junction of the nozzle and the shroud and to prevent outside air from |
| 4917358 |
Apparatus for producing electrical steel core laminations |
April 17, 1990 |
| Core laminations are stamped from electrical steel strip and stress annealed by induction heating in a closed tubular chute inclined downwardly from the stamping press. A preselected, non-ambient atmosphere is maintained within the chute. |
| 4881990 |
Steel product with globular manganese sulfide inclusions |
November 21, 1989 |
| The dissolved oxygen content in a bath of molten steel is controlled, in one embodiment, by diluting a slag layer atop the bath with an oxide such as lime (CaO), to reduce the percentage of MnO and FeO in the slag, and stirring the bath of molten steel. In another embodiment, a gaseous |
| 4871403 |
Method for producing electrical steel core laminations |
October 3, 1989 |
| Core laminations are stamped from electrical steel strip and stress annealed by induction heating in a closed tubular chute inclined downwardly from the stamping press. A preselected, non-ambient atmosphere is maintained within the chute. |
| 4863684 |
Method and apparatus for adding shot to molten steel |
September 5, 1989 |
| A vertical first stream of molten metal flows from a ladle into the tundish of a continuous casting apparatus. A second stream composed of solid, particulate alloying ingredient and a non-oxidizing carrier gas is directed into the first stream with a nozzle. The two streams each have |
| 4860819 |
Continuous casting tundish and assembly |
August 29, 1989 |
| A tundish and associated assembly are employed for the continuous casting of molten steel containing lead. Undissolved lead can accumulate at the bottom of the tundish, work its way through the refractory material lining the tundish interior bottom and weep through the metal tundish shel |
| 4849167 |
Method and appartus for adding liquid alloying ingredient to molten steel |
July 18, 1989 |
| A descending stream of molten metal is directed from a ladle into a bath of molten metal in a tundish. Molten alloying ingredient is added to the molten metal, either directly to the descending stream within a shroud, or it is injected into the bath, through a sidewall of the tundish, at |
| 4848755 |
Apparatus for adding liquid alloying ingredient to molten steel |
July 18, 1989 |
| A descending stream of molten metal is directed from a ladle into a bath of molten metal in a tundish. Molten alloying ingredient is added to the molten metal, either directly to the descending stream within a shroud, or it is injected into the bath, through a sidewall of the tundish, at |
