Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 7628953 | Aluminum-based alloy and the article made thereof The present invention relates to aluminum-based alloy of Al—Cu—Mg—Li type and to an article made thereof which are intended to be used in aircraft and aerospace vehicles. While having high strength properties (ultimate strength level and yield strength ... | 12/08/2009 |
| 7438772 | Aluminum-copper-magnesium alloys having ancillary additions of lithium An aluminum-copper-magnesium alloy having ancillary additions of lithium. The alloy composition includes from about 3 to about 5 weight percent Cu, from about 0.5 to about 2 weight percent Mg, and from about 0.01 to about 0.9 weight percent Li. The combined amount o... | 10/21/2008 |
| 7435305 | Cast aluminum alloy compressor wheel for a turbocharger A compressor wheel made of a cast aluminum alloy, wherein the cast aluminum alloy contains Cu 1.4 to 3.2 mass %, Mg 1.0 to 2.0 mass %, Ni 0.5 to 2.0 mass %, Fe 0.5 to 2.0 mass %, and at least one selected from the group consisting of Ti 0.01 to 0.35 mass %, Zr 0.01 ... | 10/14/2008 |
| 7323068 | High damage tolerant Al-Cu alloy Disclosed is a high damage tolerant Al—Cu alloy of the AA2000 series having a high toughness and an improved fatigue crack growth resistance, including the following composition (in weight percent) Cu 3.8-4.7, Mg 1.0-1.6, Zr 0.06-0.18, Cr0-0.50 , Fe≦0.... | 01/29/2008 |
| 7294213 | Aircraft structural member made of an Al-Cu-Mg alloy The invention relates to a work-hardened product, particularly a rolled, extruded or forged product, made of an alloy with the following composition (% by weight): Cu 3.8-4.3; Mg 1.25-1.45; Mn 0.2-0.5; Zn 0.4-1.3; Fe | 11/13/2007 |
| 7285196 | Methods and apparatus for making integrated-circuit wiring from copper, silver, gold, and other metals In recent years, copper wiring has emerged as a promising substitute for the aluminum wiring in integrated circuits, because copper offers lower electrical resistance and better reliability at smaller dimensions than aluminum. However, use of copper typically requir... | 10/23/2007 |
| 7252723 | AlCuMg alloys with high damage tolerance suitable for use as structural members in aircrafts New alloys for potential use in applications such as in lower wing skins and fuselage skins are disclosed. Specifically, Mn-free 2×24 alloys potentially suitable for thick plate and thin plate and sheet applications are believed to be novel and to provide unexpecte... | 08/07/2007 |
| 7229508 | Al—Cu—Mg—Ag—Mn-alloy for structural applications requiring high strength and high ductility An aluminum alloy having improved strength and ductility, comprising: Cu 3.5–5.8 wt. %, Mg 0.1–1.8 wt. % Mn 0.1–0.8 wt. % Ag 0.2–0.8 wt. % Ti 0.02–0.12 w... | 06/12/2007 |
| 7229509 | Al-Cu-Li-Mg-Ag-Mn-Zr alloy for use as structural members requiring high strength and high fracture toughness An improved aluminum lithium alloy comprising 0.1 to 2.5 wt. % Li, 2.5 to 5.5 wt. % Cu, 0.2 to 1.0 wt. % Mg, 0.2 to 0.8 wt. % Ag, 0.2 to 0.8 wt. % Mn, up to 0.4 wt. % Zr or other grain refiner such as chromium, titanium, hafnium, scandium or vanadium, the balance al... | 06/12/2007 |
| 7087202 | Particulate reinforced aluminum composites, their components and the near net shape forming process of the components This invention concerns particulate reinforced Al-based composites, and the near net shape forming process of their components. The average size of the reinforced particle in the invented composites is 0.1–3.5 μm and the volume percentage is 10–40%, and a good ... | 08/08/2006 |
| 6955785 | Aluminum alloy for rapidly cooled welding and welding method therefor The present invention relates to an aluminum alloy for rapidly cooled welding. The alloy comprises, by weight, Mg: 0.4 to 7.0%, Cu: 0.05 to 1%, at least one kind of Mn: 0.8 to 2.5%, Cr: 0.35 to 2.0% and Fe: 0.7 to 1.5% and the balance of Al and inevitable impurities... | 10/18/2005 |
| 6918975 | Aluminum alloy extrusions having a substantially unrecrystallized structure A substantially unrecrystallized extrusion comprising about 3.6 to about 4.2 wt. % copper, about 1.0 to about 1.6 wt. % magnesium, about 0.3 to about 0.8 wt. % manganese, about 0.05 to 0.25% zirconium, the balance substantially aluminum, incidental elements and impu... | 07/19/2005 |
| 6808864 | Support for lithographic printing plate and presensitized plate Disclosed is a support for a lithographic printing plate obtained by subjecting an aluminum plate to a graining treatment and an anodizing treatment, the support comprising at least any one of Mn in a range from 0.1 to 1.5 wt % and Mg in a range from 0.1 to 1.5 wt %... | 10/26/2004 |
| 6783869 | Aluminium alloy for an anti-friction element The invention relates to an aluminium alloy for an anti-friction element containing respectively, as a % by weight, 4.2% to 4.8% Zn, 3.0% to 7.0% Si, 0.8% to 1.2% Cu, 0.7% to 1.3% Pb, 0.12% to 0.18% Mg, 0% to 0.3% Mn and 0% to 0.2% Ni. Also incorporated, based on % ... | 08/31/2004 |
| 6602361 | Product made of an AlCuMg alloy for aircraft structural elements Rolled product for use in the manufacture of aircraft structural elements, made of an AlCuMg alloy processed by solution heat treatment, quenching and cold stretching. The product has a composition consisting essentially of, in % by weight: Fe | 08/05/2003 |
| 6576071 | High toughness plate alloy for aerospace applications The present invention is directed to highly controlled alloy composition relationship of a high purity Al--Mg--Cu alloy within the 2000 series aluminum alloys as defined by the Aluminum Association, wherein significant improvements are revealed in fractur... | 06/10/2003 |
| 6531004 | Weldable anti-corrosive aluminium-magnesium alloy containing a high amount of magnesium, especially for use in aviation Weldable, high-magnesium-content aluminum-magnesium alloy consisting of at least 5-6% w/w magnesium (Mg), 0.05-0.15% w/w zirconium (Zr), 0.05-0.12% w/w manganese (Mn), 0.01-0.2% w/w titanium (Ti), 0.05-0.5% w/w of one or more elements from the scandium gr... | 03/11/2003 |
| 6444058 | High toughness plate alloy for aerospace applications The present invention is directed to highly controlled alloy composition relationship of a high purity Al--Mg--Cu alloy within the 2000 series aluminum alloys as defined by the Aluminum Association, wherein significant improvements are revealed in fractur... | 09/03/2002 |
| 6325869 | Aluminum alloy extrusions having a substantially unrecrystallized structure A substantially unrecrystallized extrusion comprising about 3.6 to about 4.2 wt. % copper, about 1.0 to about 1.6 wt. % magnesium, about 0.3 to about 0.8 wt. % manganese, about 0.05 to about 0.25% zirconium, the balance substantially aluminum, incidental ... | 12/04/2001 |
| 6312534 | High strength cast aluminum-beryllium alloys containing magnesium A high strength cast aluminum-beryllium alloy including magnesium represented by the formula (25-60% Al)+(40-75% Be)+(0.1-1.25% Mg)+(0 | 11/06/2001 |
| 6183887 | Heat protection element consisting of a quasicrystalline aluminum alloy A composite structure including a substrate and a heat protection element on the substrate, wherein the heat protection element includes a quasicrystalline aluminium alloy of one or a number of quasicrystalline phases which are either quasicrystalline pha... | 02/06/2001 |
| 6126898 | Cast aluminium-copper alloy An aluminum-copper alloy comprising substantially insoluble particles which occupy the interdendritic regions of the alloy.... | 10/03/2000 |
| 6077363 | Al-Cu-Mg sheet metals with low levels of residual stress A metal sheet with a total thickness >0.5 mm comprising an AlCuMg aluminum alloy consisting essentially of Al and, in percent by weight: ______________________________________ 3.5 < Cu < 5.0 1.0 < Mg < 2.0 S... | 06/20/2000 |
| 6074494 | Surface nitriding method of an aluminum material, and an auxiliary agent for nitriding This invention aims to provide a nitriding method of forming a relatively thick nitride layer on the surface of an aluminum material containing silicon, and an auxiliary agent for nitriding. By using a nitriding auxiliary agent mainly comprising aluminum ... | 06/13/2000 |
| 6056835 | Superplastic aluminum alloy and process for producing same The present invention relates to a process for producing a superplastic aluminum alloy capable of being used for plastic working such as extrusion, forging and rolling. An object of the present invention is to provide an ingot-made high speed superplastic... | 05/02/2000 |
| 5989495 | Aluminum alloy for use in castings An aluminum alloy for use in castings, comprising 0.0005-0.01 weight % of Fe, 0.0005-0.01 weight % of Si, 2.5-6.5 weight % of Cu, 0.10-0.50 weight % of Mg, 0.001-0.40 weight % of Mn, 0.10-0.50 weight % of Ti, 0.20-1.2 weight % of Ag, 0.002-0.01 weight % o... | 11/23/1999 |
| 5939164 | Aluminum alloy sheet for magnetic disk substrate aluminum alloy clad sheet for magnetic disk substrate and their manufacturing method The present invention relates to an aluminum alloy for a magnetic disk substrate having a composition consisting of, by percent by weight, 2.0 to 6.0% of Mg, 0.05 to 0.15% of Cu, 0.10 to 0.30% of Zn and 0.05 to 0.12% of Zr, wherein the contents of Cu, Zn ... | 08/17/1999 |
| 5938867 | Method of manufacturing aluminum aircraft sheet A method of producing an aluminum product comprising providing stock including an aluminum alloy comprising about 4.0 to 4.4 wt. % copper, about 1.25 to 1.5 wt. % magnesium, about 0.35 to 0.5 wt. % manganese, not more than 0.12 wt. % silicon, not more tha... | 08/17/1999 |
| 5925313 | Aluminum base alloy containing boron and manufacturing method thereof There is provided an Al base alloy containing boron which is superior in mechanical properties such as strength, ductility or workability and the like and has a neutron absorbing capacity and an ability to recycle. This is an Al base alloy containing boro... | 07/20/1999 |
| 5879478 | Process for semi-solid forming of thixotropic aluminum-silicon-copper alloy The invention relates to an aluminum alloy for thixoforming with the composition (by weight): Si: 5%-7.2% Cu: 1%-5% Mg | 03/09/1999 |
| 5865911 | Aluminum alloy products suited for commercial jet aircraft wing members Rolled plate products up to 6 inches thick or more and other products in an aluminum alloy consisting essentially of about 5.2 to 6.8% zinc, 1.7 to 2.4% copper, 1.6 to 2% magnesium, 0.03 to 0.3% zirconium, balance substantially aluminum and incidental ele... | 02/02/1999 |
| 5865914 | Method for making an aerospace structural member There is claimed a lower wing structure for a commercial jet aircraft which includes a substantially unrecrystallized rolled plate member made from an aluminum alloy consisting essentially of about 3.6 to 4.0 wt. % copper, about 1.0 to 1.6 wt. % magnesium... | 02/02/1999 |
| 5863359 | Aluminum alloy products suited for commercial jet aircraft wing members There is claimed a lower wing structure for a commercial jet aircraft which includes a substantially unrecrystallized rolled plate member made from an aluminum alloy consisting essentially of about 3.6 to 4.0 wt. % copper, about 1.0 to 1.6 wt. % magnesium... | 01/26/1999 |
| 5800927 | Vanadium-free, lithium-free, aluminum alloy suitable for sheet and plate aerospace products There is claimed a sheet or plate structural member suitable for aerospace applications and having improved combinations of strength and toughness. The member is made from a substantially vanadium-free, lithium-free, aluminum-based alloy consisting essent... | 09/01/1998 |
| 5772802 | Method for making can end and tab stock Can or lid stock and a method for its manufacture in which a low alloy content aluminum alloy is strip cast to form a hot strip cast feedstock, the hot feedstock is rapidly quenched to prevent substantial precipitation, annealed and quenched rapidly to pr... | 06/30/1998 |
| 5772799 | Method for making can end and tab stock Can or lid stock and a method for its manufacture in which a low alloy content aluminum alloy is strip cast to form a hot strip cast feedstock, the hot feedstock is rapidly quenched to prevent substantial precipitation and then cold rolled. The can end an... | 06/30/1998 |
| 5769972 | Method for making can end and tab stock Can or lid stock and a method for its manufacture in which a low alloy content aluminum alloy is strip cast to form a hot strip cast feedstock, the hot feedstock is rapidly annealed and quenched rapidly to prevent substantial precipitation of alloying ele... | 06/23/1998 |
| 5759302 | Heat treatable Al alloys excellent in fracture touchness, fatigue characteristic and formability There is provided Al alloys which have improved and excellent fracture toughness and fatigue characteristic and improved formability, and which can be suitably used for transportation machines, such as aircraft, railway vehicles, general mechanical parts ... | 06/02/1998 |
| 5746847 | Aluminum alloy sheet for easy-open can ends having excellent corrosion resistance and age softening resistance and its production process An aluminum alloy containing magnesium (Mg) between 3.0 and 4.0 wt. %, manganese (Mn) between 0.5 and 1.0 wt. %, copper (Cu) between 0.2 and 0.6 wt. %, iron (Fe) between 0.05 and 0.4 wt. % and remaining obligatory trace elements, has an electrical conduct... | 05/05/1998 |
| 5738735 | Al-Cu-Mg alloy with high creep resistance A high creep resistance aluminum alloy containing, in percent by weight: Cu: 2.0-3.0; Mg: 1.5-2.1; Mn: 0.3-0.7; Fe | 04/14/1998 |
