| Patent Number |
Title Of Patent |
Date Issued |
| RE31959 |
Sealing means for a coke oven chuck door |
July 30, 1985 |
| A sealing means for a coke oven chuck door. The sealing means includes a metal sealing member which has springiness and flexibility and is supported cantilever fashion on the inside of the door frame. An insulation block is interposed between the sealing member and door frame. The se |
| RE30343 |
Method and single piece annular nozzle to prevent alumina buildup during continuous casting of A |
July 22, 1980 |
| A pour passage of particular configuration for controlling the flow of aluminum-killed steels, or the like, is described which is effective for preventing the accumulation of oxide inclusions in an orifice opening disposed in the pour passage. The described pour passage configuration may |
| RE30075 |
Method and apparatus for locating improperly positioned or bent rolls |
August 21, 1979 |
| A method and apparatus for locating improperly positioned or bent rolls among a set of rolls which define a confined path of travel for a workpiece, particularly useful for checking a straight or curved roll-rack of a continuous-casting machine. The apparatus may be propelled through |
| RE29646 |
Method or restoring ingot mold stools and closed-bottom ingot mold |
May 30, 1978 |
| A method of repairing large castings, such as ingot molds and mold stools, by employing an aluminothermic reduction reaction without using containment perimeters and without preheating the casting. The resultant repaired article has a metallurgically bonded plug in the hole or eroded |
| RE29537 |
Torque balanced rope |
February 14, 1978 |
| .Iadd.A torque balanced regular lay wire rope having from three to six strands spiraled together such that the angle of lay of the outer wires in each strand is at least two times greater than the angle of lay of the strands in the rope and said rope is in a stress relieved condition |
| RE28868 |
Method of forming composite rolls |
June 22, 1976 |
| A method of forming a composite roll which has a hard wear resistant shell and a tough shock resistant arbor. The shell is adhesively affixed to the arbor, thus avoiding a shrink fit which places the shell under tension. The roll is adapted for use in applications where the arbor-shell |
| RE28719 |
Method of making flat steel files |
February 24, 1976 |
| A process for making flat steel files wherein a highcarbon steel is hot rolled on a wide strip mill and coiled. The coil is given a spheroidizing anneal and slit into bar and cut into flat bar stock. File blanks are cut from the flat bar stock and ground to remove a pure iron surface cau |
| D599119 |
Sheet material |
September 1, 2009 |
|
| 7621323 |
Solid expandable tubular members formed from very low carbon steel and method |
November 24, 2009 |
| A very low carbon steel alloy is provided for use in manufacturing tubular members such as oil country tubular goods. The tubular members may be radially expanded from at least twenty percent to forty percent. Sections or joints of casing formed from the steel alloy may be installed with |
| 7621164 |
Push bench and method of manufacturing small diameter tubing |
November 24, 2009 |
| The present invention involves cost effective, efficient systems and methods for sizing pipe. In an embodiment of the present invention, a pipe sizing system includes a die having an opening operable to size the pipe, a hydraulic cylinder having at least one rod attached thereto, the |
| 7604844 |
Method, system and apparatus for scraping a roll surface in a molten metal coating process |
October 20, 2009 |
| A method is disclosed for scraping a roll surface rotating in a molten metal coating process comprising traversing a support assembly to one side, lifting the arms attached to said the assembly to a fully retracted position to disengage scraper blades from contact with a roll surface; |
| 7596848 |
Method for producing bimetallic line pipe |
October 6, 2009 |
| The present invention involves a system and method for producing bimetallic pipe. In one embodiment of the present invention, the method includes inserting an inner shell into an outer shell and reducing the outer shell to securely engage the inner shell by drawing the outer shell an |
| 7404438 |
Solid expandable tubular members formed from very low carbon steel and method |
July 29, 2008 |
| A very low carbon steel alloy is provided for use in manufacturing tubular members such as oil country tubular goods. The tubular members may be radially expanded from at least twenty percent to forty percent. Sections or joints of casing formed from the steel alloy may be installed with |
| 7341629 |
Method, system and apparatus for scraping a roll surface in a molten metal coating process |
March 11, 2008 |
| An apparatus for scraping the surface of a sink roll in a molten metal coating process comprises a support member having a pair of linearly movable arms supported thereon. The support member depends from a bridge structure spanning a continuous metal coating line, and a pair or arms, |
| 7311789 |
Dual phase steel strip suitable for galvanizing |
December 25, 2007 |
| Dual phase steel sheet is made using a time/temperature cycle including a soak at about A.sub.C1+45.degree. F. to A.sub.C1+135.degree. F. and a hold at 850-940F, where the steel has the composition in weight percent, carbon: 0.02-0.20; aluminum: 0.010-0.150; titanium: 0.01 max; silicon: |
| 7291252 |
Electrocoating chrome-plated steel |
November 6, 2007 |
| Steel cabinet parts and other steel objects are electrocoated in a cationic resin-containing bath. The steel objects are chromium-coated, free of phosphate and preferably free of chromium oxide. The products are not significantly subject to filiform corrosion, and the process is econ |
| 7225657 |
Elimination of rolling mill chatter |
June 5, 2007 |
| A method for eliminating the vibrational chatter in a rolling mill stand, whereby existing roll chocks are machined to allow commercially available thrusting means, including hydraulic cylinders and the accompanying fittings and tubing, to be installed directly into the chocks so that |
| 7178436 |
Method of cutting carbon and alloy steel |
February 20, 2007 |
| The present invention discloses a method and apparatus for controlling the load on the blade of a steel-cutting saw A programmable logic controller senses the spindle motor load current and compares it with the desired optimum operating current. Variations in hardness of the steel member |
| 6811624 |
Method for production of dual phase sheet steel |
November 2, 2004 |
| Dual phase steel sheet is made using a time/temperature cycle including a soak at about 1340-1425F and a hold at 850-920F, where the steel has the composition in weight percent, carbon: 0.02-0.20; aluminum: 0.010-0.150; titanium: 0.01 max; silicon: 0.5 max; phosphorous: 0.060 max; sulfur |
| 6673171 |
Medium carbon steel sheet and strip having enhanced uniform elongation and method for production |
January 6, 2004 |
| A method is provided for producing medium carbon steel sheet and strip with enhanced uniform elongation for deep drawing applications. In one embodiment, a steel slab containing carbon 0.30/0.70%, manganese 0.75/2.0%, silicon up to 1.0% max., total aluminum 0.020/0.10%, the balance i |
| 4695323 |
High strength coke-oven mortar |
September 22, 1987 |
| A high strength mortar has been developed for use with silica brick, in the construction of coke-oven heating walls. When fired to conventional coke oven temperatures of about 1100.degree. C., the mortar develops a tensile strength within the mortar itself, and a tensile bond to the sili |
| 4692216 |
Method for controlling heat input into a coke oven |
September 8, 1987 |
| Method of controlling heat input into a coke oven to obtain a desired temperature of the coke mass of the oven at the time of pushing comprising (1) determine the moisture content and heat of carbonization of a sample of coal scheduled for transfer into the oven; (2) determine a coal mas |
| 4686090 |
Desulfurizing of reducing gas stream using a recycle calcium oxide system |
August 11, 1987 |
| A process for producing a low-sulfur content hot reducing gas stream comprising (a) contacting a sulfur bearing hot reducing gas stream with a desulfurizing agent comprising a desulfurizing fixed bed of solid particles comprising calcium oxide to thereby produce a low-sulfur content |
| 4683937 |
Ingot mold and method of producing same |
August 4, 1987 |
| A process for casting ingot molds wherein a smooth, rigidized insulative board is used to form the as cast bottom surface of the ingot mold to produce a smooth flat surface which does not require machining and to permit slow cooling and solidification so that a uniform macrostructure |
| 4679614 |
Apparatus for significantly decreasing undesired variation in the alignment of adjustable contin |
July 14, 1987 |
| Improvements are provided in a continuous caster mold for preventing undesired variation in the angular alignment of the narrow mold walls during casting. In one aspect, an improvement is provided in a mechanism for adjusting the spacing and angular alignment of the mold wall so as to |
| 4657584 |
Effect of MgO source on sinter properties |
April 14, 1987 |
| A process is provided for sintering iron-bearing particulate materials in which the final sinter contains 3/5.5% MgO, yet has substantially the same strength as a low MgO limestone sinter. At least 20% of the MgO in the final sinter product must come from free MgO-bearing material other |
| 4651802 |
Attachment for connecting endwall mold face to continuous caster mold support |
March 24, 1987 |
| An improvement is provided in continuous caster molds for quick disconnect of a mold wall from its spacing adjustment mechanism. A plate attached to the adjustment mechanism is aligned generally parallel to the mold wall. A pair of connections are provided adjacent upper and lower ends o |
| 4651578 |
Well pumping unit |
March 24, 1987 |
| An improved oil well pumping unit has an arc latch which is remotely actuable so that a workman is not required to climb onto, or be in the immediate vicinity of the arc, in order to move the arc to an inoperative position spaced from the centerline of the well. |
| 4650502 |
Pressurized gaseous aqueous ammonia separation system |
March 17, 1987 |
| Systems and methods are provided for separating a first pressurized gaseous aqueous ammonia stream into a second gaseous ammonia stream having a higher ammonia concentration than the first stream and a third gaseous aqueous ammonia stream of reduced pressure and lower ammonia concentrati |
| 4634745 |
Terpolymer production |
January 6, 1987 |
| Terpolymers comprising propylene and small amounts of ethylene and butene-1 are made in a two-stage process wherein a relatively high melting random terpolymer is made in a first stage and a relatively low-melting random terpolymer incorporating a higher concentration of ethylene, is mad |
| 4628869 |
Variable temperature waste heat recovery system |
December 16, 1986 |
| A system for recovering the waste heat normally exhausted in the atmosphere by blast furnace stoves or other variable temperature process heaters. The system comprises a heat exchange apparatus located in the exhaust stack, heat transfer means for carrying the waste heat absorbed from th |
| 4623530 |
Crystalline magnesia-silica composites and process for producing same |
November 18, 1986 |
| Novel aromatic alkylation catalysts are manufactured by an extended hydrothermal treatment of the precipitation product of a magnesium salt with sodium silicate in the presence of tetrapropylammonium bormide or related compound. |
| 4615375 |
Continuous casting mold friction monitor |
October 7, 1986 |
| A load signal representing the load between a mold and an oscillating mechanism is separated into its static offset and dynamic components. The static offset signal is compared with a free-running static offset to obtain a substantially DC signal representing the DC component of mold |
| 4612120 |
Axisymmetrical separator for separating solids and gas from a fluid medium |
September 16, 1986 |
| A dimensionally compact centrifugal separator having no moving parts is described that is effective for separating entrained solids and gases from a liquid in order to cleanse the liquid. The internal configuration of the apparatus is such as to effectively clean the liquid while preserv |
| 4609410 |
Method for producing high-strength deep-drawable dual-phase steel sheets |
September 2, 1986 |
| High-strength, deep-drawable, steel sheet exhibiting dual-phase properties is produced by (i) initially annealing the sheet to achieve crystallographic textures yielding high deep drawability, (ii) heating the sheet to a temperature above the A.sub.1 for a time sufficient to produce |
| 4602574 |
Destruction of toxic organic chemicals |
July 29, 1986 |
| Toxic chemicals such as polychlorinated biphenyls and other organic wastes are destroyed by injecting them, together with oxygen, into a metal or slag bath such as is utilized in a steelmaking facility. The metal bath may be melted initially by induction or an electric arc; the desired |
| 4599142 |
Coke oven door lining |
July 8, 1986 |
| A construction for the refractory lining member of a coke oven door is provided. The coke oven door lining includes a generally "U"-shaped frame with a castable refractory element formed therein. The frame is provided with a base portion and first and second legs which extend from the ba |
| 4597048 |
Digital flow regulation of liquid-level control for a continuous casting mold |
June 24, 1986 |
| In a continuous casting apparatus, the level of liquid in the mold is monitored and compared to a desired reference level. A microcomputer examines the resulting error signal and determines the amount of movement of the valve which would be appropriate to correct the detected error. A |
| 4596601 |
High strength coke-oven mortar |
June 24, 1986 |
| A high strength mortar has been developed for use with silica brick, in the construction of coke-oven heating walls. When fired to conventional coke oven temperatures of about 1100.degree. C., the mortar develops a tensile strength within the mortar itself, and a tensile bond to the sili |
| 4594131 |
Process for removing ammonia and acid gases from process streams |
June 10, 1986 |
| A water purification process is described for the removal of ammonia and optionally one or more acid gases from wastewaters such as coke-plant or coal conversion wastewaters. The process involves adding alkali to these wastewaters in amounts sufficient to react with fixed ammonia salts |
| 4587791 |
Edge protector positioning apparatus |
May 13, 1986 |
| Apparatus for positioning an edge protector to the edge of a package to be looped with strapping is provided. The apparatus includes a guide rail extending generally normal to the exposed package edge and an edge protector positioning apparatus mounted on the rail. The edge protector |
| 4582546 |
Method of pretreating cold rolled sheet to minimize annealing stickers |
April 15, 1986 |
| In the box annealing of steel sheet, the tendency for adjacent wraps of the sheet to pressure weld (stick) is decreased or eliminated by passing the sheet, prior to annealing, through a rinse containing from 1,500 to 10,000 ppm of the magnesium or calcium salts of soluble carboxylic |
| 4582112 |
Weight-controlled casting of fully-killed steel ingots |
April 15, 1986 |
| In the ingot casting of killed-steel steels, insulative walled reservoirs known as hot-tops are employed at the top of the mold to maintain a source of molten steel which can feed the shrinkage cavity that forms during solidification of the ingot. Presently, these hot-tops are set to a |
| 4581156 |
Control of foam formation in the manufacture of wet process phosphoric acid |
April 8, 1986 |
| Significant improvements in defoaming in a wet-process phosphoric acid reactor are obtained by adding to the reactor during the digestion process both a surfactant defoamer and a polyacrylamide. |
| 4579461 |
Dual sensor radiation pyrometer |
April 1, 1986 |
| A pyrometer for determining the temperature of a surface in the presence of reflected radiation has two infrared radiation sensors, each responsive to different wave length, positioned to receive radiation from the surface. An adjustment factor is developed from sensor response signals w |
| 4577554 |
Knotting apparatus for wire strapping machine |
March 25, 1986 |
| Apparatus for effecting the knotting of wire strapping applied to a package is provided. The knotting function is motivated by means of a hydraulic cylinder which displaces a rack gear which, in turn, drives a pinion gear to which a splined shaft is affixed. The shaft runs through the kn |
| 4574714 |
Destruction of toxic chemicals |
March 11, 1986 |
| Toxic chemicals such as polychlorinated biphenyls and other organic wastes are destroyed, optionally together with inorganic wastes, by injecting them, together with oxygen, into a molten bath such as is utilized in a steelmaking facility. The bath may be melted initially by induction, a |
| 4573620 |
Apparatus for absorbing a force applied to a cable or the like |
March 4, 1986 |
| Apparatus for controlling the jerk or shock loading of the wire rope used to apply tension to move a galvanizing or pickle line's horizontal looper car. The apparatus includes a vertical spindle affixed to the frame of the looper car. A drum having a radially extending arm is provided to |
| 4573128 |
Digital method for the measurement and control of liquid level in a continuous casting mold |
February 25, 1986 |
| A method is provided for measuring and controlling the level of an elevated temperature liquid in a container. The method includes converting electrical voltage signals from temperature sensing means spaced along a wall of the container to digital form. The converted signals are peri |
| 4570230 |
Method of measuring and controlling the level of liquid in a container |
February 11, 1986 |
| A method is provided for measuring and controlling the level of an elevated temperature liquid in a container. The electrical voltage signal outputs of a plurality of temperature sensing devices at spaced elevations on the container are converted to digital form. The converted signals ar |
