| Patent Number |
Title Of Patent |
Date Issued |
| RE36692 |
Heat treatment process for aluminum alloy sheet |
May 16, 2000 |
| A process of producing solution heat treated aluminum alloy sheet material comprises subjecting hot- or cold-rolled aluminum alloy sheet to solution heat treatment followed by quenching and, before substantial age hardening has taken place, subjecting the alloy sheet material to one or m |
| 7473376 |
Apparatus for production, withdrawal and transfer of highly viscous slurry |
January 6, 2009 |
| Method and apparatus for separating components of slurries by gravity settling thereby forming a thickened slurry and a clarified liquid. The apparatus comprises a vessel for decanting a volume of slurry, the vessel having a top and an interior formed by a side wall and a bottom wall for |
| 7472613 |
Device and method for measuring metal inclusions |
January 6, 2009 |
| A device is provided for measuring metal inclusions comprising a receptacle for holding a sample of molten metal, with this receptacle having insulated side walls and a bottom wall provided with an exit opening. A ceramic filter element for collecting inclusions from the molten metal |
| 7462271 |
Stabilizers for titanium diboride-containing cathode structures |
December 9, 2008 |
| A method is described for making aluminum reduction cell components, e.g. cathodes having stabilized surfaces, which comprises mixing together a carbonaceous material, TiB.sub.2 and up to 25% by weight of a finely divided additive consisting of a combination of two intimately mixed c |
| 7448153 |
Container label with tear-off part |
November 11, 2008 |
| A label for a soft drink bottle or other container. The label is an elongated strip of flexible material having first and second ends, inner and outer surfaces and upper and lower edges. A first quantity of adhesive is applied to the inner surface of the strip adjacent to the first e |
| 7258754 |
Method of fabricating a bare aluminum conductor |
August 21, 2007 |
| A method of fabricating a bare aluminum electrical conductor including a step of heat treating the conductor while wound on a winding form. The method comprises the step of coating the outer surface of the aluminum conductor with an inorganic powder material prior to winding the wire or |
| 7186357 |
High swelling ramming paste for aluminum electrolysis cell |
March 6, 2007 |
| A new ramming paste for aluminum reduction cell cathodes is a high swelling cold ramming paste made of a blend of pitch, light oil diluent and an aggregate comprising a mixture of anthracite and crushed anode butts or calcined coke. The presence of the crushed anode butts or calcined |
| 7147768 |
Electrochemical scale inhibition |
December 12, 2006 |
| A process of reducing scaling of a metal surface exposed to an aqueous solution from which scale may form after a period of exposure. The process comprises applying a cathodic potential to the surface for at least some of the period of exposure. In some cases, e.g. when an article is |
| 7040569 |
Winding tube and method for the production thereof |
May 9, 2006 |
| The invention relates to a winding tube for winding up bands, films, sheets of metal or similar made of a spiral shaped wound metal strip whose adjacent strip windings overlap at least partially. The metal strip has a corrugated or ribbed profile in the cross-section thereof, whose e |
| 7036097 |
Method for designing a cascade of digital filters for use in controling an electrolysis cell |
April 25, 2006 |
| A method for designing a cascade of digital filters for use in the control of an electrolytic reduction cell by specifying the frequency and time response characteristics of the transfer function of the cascade of digital filters. The digital filters are exponential filters. The number |
| 6960239 |
Process and apparatus for adding particulate solid material to molten metal |
November 1, 2005 |
| An apparatus is provided for the treatment of molten metal, e.g. aluminum, with a particulate treatment agent and a gas. This includes a vessel for holding molten metal, a rotary device for breaking up particulate treatment agent and gas within the molten metal and for dispersing par |
| 6939417 |
Aluminum alloys having high corrosion resistance after brazing |
September 6, 2005 |
| When using AA3000 series and AA1000 series aluminum alloys to produce extruded products for heat exchanger applications, by controlling the level of copper and nickel in the alloy to very low levels it is possible to produce excellent corrosion resistance both before and after a brazing |
| 6936178 |
Apparatus for and method of settling of mineral slurries |
August 30, 2005 |
| The invention relates to a settler for decanting mineral slurries and a method thereof. The settler comprises a tank for holding and decanting a body of slurry to form a thickened slurry as a lower layer and a clarified liquid as an upper layer, the tank having a side wall, a bottom and |
| 6866767 |
Process for controlling anode effects during the production of aluminum |
March 15, 2005 |
| An improved method is described for adding alumina to a Soderberg or pre-bake type electrolytic cell fed by schedule crust breaking. Instead of adding the full amount of alumina required following each crust breaking, as is traditional, the standard dose of alumina is now split into two |
| 6851293 |
Wire reduction device |
February 8, 2005 |
| A device re-shapes formed wire after processes such as annealing where wire is wound on bobbins. The device includes a reservoir for containing lubricant having a first open end and a second open end. The first end of the reservoir is closed by a guide mechanism for guiding the wire into |
| 6830723 |
Apparatus for treating molten metal having a sealed treatment zone |
December 14, 2004 |
| An apparatus for treating molten metal includes a treatment vessel for holding molten metal and a removable cover or hood for the vessel. Sealing means are provided between the cover and the vessel to provide a gas tight treatment zone. The sealing means include mating peripheral flanges |
| 6808009 |
System for providing consistent flow through multiple permeable perimeter walls in a casting mol |
October 26, 2004 |
| Disclosed is a system for providing consistent lubricant and/or gas flow through multiple permeable perimeter walls in a casting mold table. One or more of the properties of the perimeter walls indicative of the lubricant flow or gas flow rates through the perimeter walls are predetermin |
| 6802196 |
Methods of and apparatus for pressure-ram-forming metal containers and the like |
October 12, 2004 |
| A method of forming a bottle-shaped or other contoured metal container by subjecting a hollow metal preform having a closed end to internal fluid pressure to cause the preform to expand against the wall of a die cavity defining the desired shape, and advancing a punch by means of a backi |
| 6790387 |
Process of producing diffraction gratings on the surface of articles |
September 14, 2004 |
| A process of producing an article having a surface provided with an optical diffraction grating such that the surface generates visible color when illuminated with diffuse white light. The process involves deforming a starting material to produce the article having the surface and, durin |
| 6783729 |
Aluminum alloy for making naturally aged die cast products |
August 31, 2004 |
| Aluminum alloy die castings combine good as-cast strength with good as-cast ductility, without any heat treatment. The alloy comprises 2.75 5.25 wt. % magnesium, 1.85-3.15 wt. % zinc, 0.65-1.2 wt. % manganese, 0.10-0.18 wt. % iron, less than 0.10 wt. % copper, less than 0.10 wt. % silico |
| 6780259 |
Process for making aluminum alloy sheet having excellent bendability |
August 24, 2004 |
| A process is described for producing an aluminum alloy sheet having excellent bendability for use in forming panels for automobiles. An aluminum alloy containing 0.50 to 0.75 by weight Mg, 0.7 to 0.85% by weight Si, 0.1 to 0.3% by weight Fe, 0.15 to 0.35% by weight Mn, and the balanc |
| 6755923 |
Method of controlling metal strip temperature |
June 29, 2004 |
| The recoiling temperature of a metal strip from a continuous heat treatment line is controlled by continuously passing the metal strip through an accumulator system where it passes around spaced accumulator rolls. While travelling through the accumulator, the metal strip is subjected to |
| 6755889 |
Process for cleaning and purifying molten aluminum |
June 29, 2004 |
| A process is described for treating molten metal with a particulate treating agent. A melt of a metal, e.g. aluminum, is provided in a treatment vessel such as a ladle and a mixing impeller is positioned substantially below the surface of the molten metal. The impeller comprises a pl |
| 6755236 |
Belt-cooling and guiding means for continuous belt casting of metal strip |
June 29, 2004 |
| A belt cooling and guiding apparatus for a casting belt of a twin belt caster. The cooling and guiding apparatus comprises at least one nozzle having a support surface facing a reverse surface of the casting belt (a surface opposite to a casting surface in the casting mold), provided wit |
| 6731996 |
Method of using isotropic plasticity to model the forming of anisotropic sheet |
May 4, 2004 |
| A method of fabricating an article from a blank of material (e.g., aluminum alloy sheet) having anisotropic deformation properties, with tooling which has been designed by predicting flow and deformation of the blank using an analysis which decouples the anisotropic deformation propertie |
| 6725904 |
Control of heat flux in continuous metal casters |
April 27, 2004 |
| A process of casting a molten metal to form a cast metal strip ingot while controlling heat flux from the cast metal. The process comprises continuously supplying molten metal to a casting cavity formed between a pair of moving continuous casting surfaces that withdraw heat from the |
| 6708825 |
Child-proof package for pharmaceutical products |
March 23, 2004 |
| A form of child-proof package for tablets and similar pharmaceutical products, features a blister pack with at least one blister which is closed off by a push-through type foil lid, the blister serving the purpose of accommodating the tablets. For the purpose of removing the tablets, |
| 6685918 |
Oral cleansing product |
February 3, 2004 |
| There is disclosed an oral cleansing product comprising as an abrasive an alumnina in the form of particles having d.sub.10 below 3.5 .mu.m, d.sub.50 below 1.0 .mu.m, and a specific surface area below 6 m.sup.2 /g. |
| 6682717 |
Toothpaste of selected calcined alumina particles |
January 27, 2004 |
| There is disclosed a toothpaste comprising as an abrasive an alumina in the form of particles having d.sub.10 below 3.5 .mu.m, d.sub.50 below 1.0 .mu.m and a specific surface area below 6 m.sup.2 /g. |
| 6668610 |
Method for continuous tension leveling of aluminum strip |
December 30, 2003 |
| An aluminum alloy sheet of the AA 6000 series is subjected to a continuous tension leveling procedure. The sheet is passed through a set of pull rollers and a set of brake rollers and subjected to a longitudinal tension between the two roller sets. Also while travelling under longitudina |
| 6663729 |
Production of aluminum alloy foils having high strength and good rollability |
December 16, 2003 |
| An aluminum alloy foil is formed from an alloy containing about 1.2 to 1.7% by weight Fe and about 0.35 to 0.80% by weight Si, with the balance aluminum and incidental impurities. The alloy is continuously strip cast to form a strip having a thickness less than about 25 mm, which is then |
| 6652678 |
AA6000 aluminum sheet method |
November 25, 2003 |
| A method of converting an ingot of a 6000 series aluminium alloy to self-annealing sheet, comprises subjecting the ingot to a two-stage homogenisation treatment, first at at least 560.degree. C. and then at 450.degree. C. to 480.degree. C., then hot rolling the homogenised ingot at a |
| 6649040 |
Wettable and erosion/oxidation-resistant carbon-composite materials |
November 18, 2003 |
| A thermal treatment system for thermally treating a sterile medium is controlled via a foot actuated switch to thermally treat the sterile medium to a desired temperature and/or form (e.g., slush). The thermal treatment system includes a basin recessed in a system top surface, while |
| 6640149 |
System and method of developing a can bottom profile and a can with a domed bottom structure |
October 28, 2003 |
| A method of developing a can (e.g. beverage) bottom profile is presented. More specifically, finite element analysis on a parametric representation of a beverage can is used for developing an improved beverage can design. By specifying performance parameters that the beverage can must me |
| 6609557 |
System for providing consistent flow through multiple permeable perimeter walls in a casting mol |
August 26, 2003 |
| Disclosed is a system for providing consistent lubricant and/or gas flow through multiple permeable perimeter walls in a casting mold table. One or more of the properties of the perimeter walls indicative of the lubricant flow or gas flow rates through the perimeter walls are pre-determi |
| 6602318 |
Process and apparatus for cleaning and purifying molten aluminum |
August 5, 2003 |
| A process is described for treating molten metal with a particulate treating agent. A melt of a metal, e.g. aluminum, is provided in a treatment vessel such as a ladle and a mixing impeller is positioned substantially below the surface of the molten metal. The impeller comprises a pl |
| 6599429 |
Water treatment product and method |
July 29, 2003 |
| A water treatment product which is a particulate material having a specific surface area of at least 1.0 m.sup.2 /g, or an artefact formed by bonding together such particulate material, and having an insoluble ferric iron coating. Perferably, the particulate material is an alumina-based |
| 6596252 |
Recycling of spent pot linings |
July 22, 2003 |
| A process is described for the treatment of spent pot lining material from electrolyte reduction cells, this spent material having a substantial content of cryolite. The spent material is first leached with water at a dilution and a time sufficient to dissolve substantially all water sol |
| 6595222 |
Chemical cleaning apparatus for cleaning metal strip |
July 22, 2003 |
| An automatic system is used for controlling the cleaning stage of a strip cleaning line, e.g. an aluminum strip cleaning line. The cleaning line includes a chemical cleaning section and at least one rinse section, with cleaning solution being sprayed onto the top and bottom faces of the |
| 6592688 |
High conductivity aluminum fin alloy |
July 15, 2003 |
| An improved aluminum alloy fin stock is described having both a high strength and a high thermal conductivity. The fin stock contains 1.2-1.8% Fe, 0.7-0.95% Si, 0.3-0.5% Mn, 0.3-1.2% Zn and the balance Al, and is produced by continuously strip casting the alloy at a cooling rate greater |
| 6589313 |
Process and apparatus for adding particulate solid material to molten metal |
July 8, 2003 |
| An apparatus is provided for the treatment of molten metal, e.g. aluminum, with a particulate treatment agent and a gas. This includes a vessel for holding molten metal, a rotary device for breaking up particulate treatment agent and gas within the molten metal and for dispersing par |
| 6579438 |
Molten salt electrolytic cell having metal reservoir |
June 17, 2003 |
| An electrolysis cell (10) for producing a molten metal having a density less than a density of a molten electrolyte used for producing the metal in the cell. The cell includes a section (14) for the electrolysis of a salt of the the metal contained in a molten electrolyte to form droplet |
| 6576696 |
Divalent metal stannate products |
June 10, 2003 |
| A divalent metal stannate product having a loss on ignition of 2-17% by weight, e.g. a product intermediate ZnSn(OH).sub.6 and ZnSnO.sub.3 has advantageous flame-retardant properties, for use e.g. in polymer formulations. |
| 6565679 |
Extrudable aluminum alloys |
May 20, 2003 |
| A novel extrudable aluminum based alloy is described consisting essentially of 0.60-0.84% magnesium, 0.45-0.58% silicon, 0.15-0.40% copper, 0.04-0.35% chromium, or 0.20-0.80% manganese, less than 0.25% iron, where Si>=(Mg/1.73+(Mn+Cr+Fe)/3-0.04), and the balance essentially aluminum. |
| 6546995 |
Casting of molten metal in an open ended mold cavity |
April 15, 2003 |
| When a body of startup material has been interposed in the cavity between the starter block and a first cross sectional plane of the cavity transverse the axis thereof, the starter block has commenced reciprocating along the axis, and the body of startup material has commenced recipr |
| 6544358 |
A1 alloy and method |
April 8, 2003 |
| An aluminium alloy in the AA5XXX series has the composition: Si 0.10-0.25 %; Fe 0.18-0.30 %; Cu up to 0.5 %; Mn 0.4-0.7 %; Mg 3.0-3.5%; Cr up to 0.2%; and Ti up to 0.1%. Rolled and annealed sheet of the alloy is readily formed into shaped components for use in vehicles which components h |
| 6542240 |
Method of identifying defective roll on a strip processing line |
April 1, 2003 |
| A defective roll in a strip processing line, e.g. an aluminum alloy strip cleaning line, may create an undesirable mark on the strip material. Where a plurality of rolls are in use, the defective roll is identified by providing a downstream inspection station which includes a data proces |
| 6533877 |
Process of manufacturing high strength aluminum foil |
March 18, 2003 |
| High strength foil having dead fold foil characteristics is produced without the rolling and other production problems encountered with prior high strength foils by controlling manganese content, interannealing temperatures and, optionally, final annealing temperatures. The alloy con |
| 6531006 |
Production of high strength aluminum alloy foils |
March 11, 2003 |
| An aluminum alloy foil is formed from an alloy containing about 1.2 to 1.7% by weight iron, about 0.4 to 0.8% by weight silicon and about 0.07 to 0.20% by weight manganese, with the balance aluminum and incidental impurities. The alloy is continuously strip cast, e.g. on a belt caster, |
| 6524768 |
Aluminium sheet with rough surface |
February 25, 2003 |
| Aluminium sheet suitable for use as a lithographic plate support has a surface that is uniformly rough by virtue of: a rippled topography having an aspect ratio of at least 1.3 on a sale of 5-200 .mu.m; and a superimposed pitted structure on a scale of 1-20 .mu.m. A method of making |
