William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 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 |
| 7407714 | Process by producing an aluminium alloy brazing sheet, aluminium alloy brazing sheet Disclosed is a process for producing an Al—Mn alloy sheet with improved liquid film migration resistance when used as core alloy in brazing sheet, including the steps of: casting an ingot having a composition comprising (in weight percent): 0.5 | 08/05/2008 |
| 7364630 | Al-Mg-Si alloy sheet excellent in surface properties, manufacturing method thereof, and intermediate material in the manufacturing thereof The present invention provides an Al—Mg—Si alloy sheet in which the production of ridging marks during press forming is noticeably inhibited, and in addition, provides a manufacturing method capable of providing such an aluminum alloy sheet, and an intermediate ... | 04/29/2008 |
| 7323069 | Squeeze and semi-solid metal (SSM) casting of aluminum-copper (206) alloy To cast a part, an injectable form of an aluminum-copper (206) alloy is generated and the aluminum-copper (206) alloy is injected into a mold. This mold corresponds to the part. In addition, the aluminum-copper (206) alloy is solidified to generate the part and the ... | 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 |
| 7214279 | Al/Cu/Mg/Ag alloy with Si, semi-finished product made from such an alloy and method for production of such a semi-finished product An Al/Cu/Mg/Mn alloy for the production of semi-finished products with high static and dynamic strength properties has the following composition: 0.3–0.7 wt % silicon (Si), max. 0.15 wt. % iron (Fe), 3.5–4.5 wt % copper (Cu), 0.1–0.5 wt. % manganese (Mn), 0.3â... | 05/08/2007 |
| 7175719 | Extruded aluminum alloy which excels in machinability, caulking properties, and wear resistance Extruded aluminum alloy which excels in machinability, caulking properties, and wear resistance, the extruded aluminum alloy including 3.0 to 6.0 mass % of Si, 0.1 to 0.45 mass % of Mg, 0.01 to 0.5 mass % of Cu, 0.01 to 0.5 mass % of Mn, and 0.40 to 0.90 mass % of F... | 02/13/2007 |
| 7131293 | Dryer integrated condenser of a refrigerating system and a method of assembling the same In a refrigerating system, a condenser (1) includes a cooling core (2) having parallel tubes and cooling fins, two headers (3) connected to the ends of each tube and a cylindrical dryer tank (4) connected to one of the headers (3) ... | 11/07/2006 |
| 7097431 | Mechanical kinetic vacuum pump A mechanical vacuum pump includes a rotor made of a light metal alloy by powder metallurgy. The powder metallurgy increases the resistance of the rotor to heat and creep. ... | 08/29/2006 |
| 6959476 | Aluminum automotive drive shaft A method for producing aluminum drive shafts from molten aluminum alloy using a continuous caster to cast the alloy into a slab. The method comprises providing a molten aluminum alloy consisting essentially of 0.2 to 0.8 wt. % Si, 0.05 to 0.4 wt. % Cu, 0.45 to 1.2 w... | 11/01/2005 |
| 6939416 | Weldable high strenght Al-Mg-Si alloy The invention relates to a weldable, high-strength aluminium alloy wrought product, which may be in the form of a rolled, extruded or forged form, containing the elements, in weight percent, Si 0.8 to 1.3, Cu 0.2 to 1.0, Mn 0.5 to 1.1, Mg 0.45 to 1.0, Ce 0.01 to 0.2... | 09/06/2005 |
| 6918970 | High strength aluminum alloy for high temperature applications A cast article from an aluminum alloy has improved mechanical properties at elevated temperatures. The cast article has the following composition in weight percent: Silicon 6.0-25.0, Copper 5.0-8.0, Iron 0.05-1.2, Magnesium 0.5-1.5, Nickel 0.05-0.9, Manganese 0.05-1... | 07/19/2005 |
| 6911099 | Process to improve 6XXX alloys by reducing altered density sites A process for improving 6XXX alloys, such as 6013, preferably includes heating, hot rolling, inter-rolling thermal treatment at a very high temperature such as 1020° F. or more, again hot rolling (with or without subsequent continuous hot rolling or cold rolling or... | 06/28/2005 |
| 6908590 | Aluminum alloy All aluminum alloy is disclosed that includes 6.5 to 8.5 percent silicon, 0.6 to 1.0 percent iron, 0.0 to 0.5 percent manganese, 0.35 to 0.65 percent magnesium, 0.0 to 1.0 percent zinc, 0.0 to 0.2 percent titanium, 2.0 to 2.5 percent copper, and aluminum as the rema... | 06/21/2005 |
| 6902699 | Method for preparing cryomilled aluminum alloys and components extruded and forged therefrom High strength aluminum alloy powders, extrusions, and forgings are provided in which the aluminum alloys exhibit high strength at atmospheric temperatures and maintain high strength and ductility at extremely low temperatures. The alloy is produced by blending about... | 06/07/2005 |
| 6866817 | Aluminum based material having high conductivity An aluminum based material includes the elements of scandium (Sc), silicon (Si), magnesium (Mg), zirconium (Zr), copper (Cu), and aluminum (Al). Thus, the aluminum based material can be used to make a heatsink plate having a heatsink effect of 20%, so that the alumi... | 03/15/2005 |
| 6863747 | Aluminum sheet material for automobile and method of producing the same An aluminum sheet material for automobiles is herein disclosed, having an aluminum alloy composition: (i) comprising 3.5 to 5 wt % of Si, 0.3 to 1.5 wt % of Mg, 0.4 to 1.5 wt % of Zn, 0.4 to 1.5 wt % of Cu, 0.4 to 1.5 wt % of Fe, and 0.6 to 1 wt % of Mn, and one or ... | 03/08/2005 |
| 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 |
| 6790407 | High-strength alloy based on aluminium and a product made of said alloy The present invention relates to high-strength aluminium-based alloy of Al—Zn—Mg—Cu system and the article made thereof. Said alloy can be used as a structural material in aircraft- and rocket engineering, and for fabricating the articles for transportation- a... | 09/14/2004 |
| 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 |
| 6743396 | Method for producing AlMn strips or sheets The present invention relates to a method for producing AlMn strips or sheets for producing components by soldering, wherein a precursor material is produced from a melt which contains (in weight-percent) Si: 0.3-1.2%, Fe: ≦0.5%, Cu: ≦0.1%, Mn: 1.0-1.8%, Mg: ≦... | 06/01/2004 |
| 6726878 | High strength aluminum based alloy and the article made thereof The invention relates to high strength aluminium—based alloy of Al—Zn—Mg—Cu system and the articles made thereof. The present alloy is characterized by the combination of improved properties: flowability, technological plasticity, fracture toughness while pr... | 04/27/2004 |
| 6726785 | Aluminum alloy sheet material and method for producing the same An aluminum alloy sheet material, containing 2.6% by mass or more and less than 3.5% by mass (% by mass is simply denoted by % hereinafter) of Si, 0.05 to 0.5% of Mg, 0.5% or more and less than 1.2% of Cu, 0.6 to 1.5% of Mn, 0.5 to 1.6% of Zn, and 0.3 to 2.0% of Fe,... | 04/27/2004 |
| 6716390 | Aluminum alloy extruded material for automotive structural members An aluminum alloy extruded material for automotive structural members, which contains 2.6 to 5 wt % of Si, 0.15 to 0.3 wt % of Mg, 0.3 to 2 wt % of Cu, 0.05 to 1 wt % of Mn, 0.2 to 1.5 wt % of Fe, 0.2 to 2.5 wt % of Zn, 0.005 to 0.1 wt % of Cr, and 0.005 to 0.05 wt ... | 04/06/2004 |
| 6706242 | Heat resistant Al die cast material Heat resistant Al die cast material having 12.5% to 14.0% of Si, 3.0% to 4.5% of Cu, 1.4% to 2.0% of Mg, and 1.12% to 2.4% of Zn. The die cast metal becomes amenable to age hardening treatment when appropriate amounts of Mg and Zn are added to an Al—Si—Cu alloy ... | 03/16/2004 |
| 6676899 | Non-hardenable aluminum alloy as a semi-finished product for structures A chemical composition of alloys, in particular naturally hard semifinished-material alloys, which are intended to be used in this form as material for semifinished materials. A naturally hard aluminum alloy for semifinished materials which, in addition t... | 01/13/2004 |
| 6673473 | Display screen, in particular a color display screen, coating of the same and means for producing the coating The invention relates to a display screen, in particular a color display screen, based on a display screen support with a single-layer or multi-layer coating which contains a red luminous substance and a coloring pigment. The invention is furthermore dire... | 01/06/2004 |
| 6656421 | Aluminum-beryllium-silicon based alloy An aluminum-beryllium-silicon based alloy is disclosed, which comprises 5.0 to 30.0 mass % of Be, 0.1 to 15.0 mass % of Si and 0.1 to 3.0 mass %, the balance being Al and inevitable impurities. The alloy is useful for producing automobile engine parts, et... | 12/02/2003 |
| 6630037 | High strength aluminum alloy forgings High strength and high toughness aluminum alloy forgings having, as a whole, a strength at ς0.2 of 315 N/mm2 or more and an impact shock value of 20 J/cm2 or more, wherein the aluminum alloy material contains Mg: 0.6-1.6%... | 10/07/2003 |
| 6623693 | Aluminum alloy composition, article and method of use An aluminum alloy composition consists essentially of controlled amounts of iron, silicon, copper, manganese, magnesium, titanium, zinc, zirconium, and free machining elements with the balance being aluminum and incidental impurities. The alloy provides i... | 09/23/2003 |
| 6607616 | Aluminum casting alloy The invention relates to an aluminum casting alloy and to cast products made thereof consisting of, in weight percent: Mg 1.0-2.6, Si 0.5-2.0, Mn 0.9-1.4, Fe | 08/19/2003 |
| 6596412 | Aluminum base bearing alloy and a bearing element comprising a running layer formed by the alloy The invention relates to an aluminum alloy, to a plain bearing and to a method of manufacturing a layer, particularly for a plain bearing, to which there is added as a main alloy component tin (14) and a hard material (15) from at least one first element ... | 07/22/2003 |
| 6592687 | Aluminum alloy and article cast therefrom A cast article from an aluminum alloy, which has improved mechanical properties at elevated temperatures, has the following composition in weight percent: Silicon 14-25.0, Copper 5.5-8.0, Iron 0.05-1.2, Magnesium 0.5-1.5, Nickel 0.05-0.9, Manganese 0.05-1... | 07/15/2003 |
| 6511555 | Cylinder head and motor block castings The present invention relates to a cylinder head and motor block casting and a method of making the same, including an aluminum alloy having the following composition: Si 6.80-7.20, Fe 0.35-0.45, Cu 0.30-0.40, Mn 0.25-0.30, Mg 0.35-0.45, Ni 0.45-0.55 Zn 0... | 01/28/2003 |
| 6494137 | Support for lithographic printing plate and presensitized plate A support for a lithographic printing plate obtained by performing surface graining and anodizing of an aluminum alloy plate, wherein the foregoing aluminum alloy plate contains specific contents of Fe, Si, Cu, Ti, Zn and Mg, with the balance being Al and... | 12/17/2002 |
| 6465113 | Aluminum alloy brazing sheet for a heat exchanger An aluminum alloy brazing sheet having a four-layered structure, of sheet thickness 0.2 mm or less, and having a core alloy, a filler alloy of an Al--Si alloy on one surface of the core alloy, a sacrificial anode material of an Al--Zn alloy on the other s... | 10/15/2002 |
| 6461454 | Aluminum alloy plate for automobile and manufacturing method thereof An aluminum alloy plate for an automobile has a chemical composition containing 0.8 to 1.5% by mass of Si, 0.4 to 0.7% by mass of Mg and 0.5 to 0.8% by mass of Cu. The crystal grain size is 10 to 40 μm. Cu content obtained by analyzing the outermost surf... | 10/08/2002 |
| 6451453 | Aluminum alloy strip or tube for the manufacture of brazed heat exchangers Strip or drawn tube for the manufacture of a brazed heat exchanger, formed from an aluminum alloy containing Si, Cu and Mn, with optional amounts of Mg, Fe, Zn and Ti, where FeࣘSi, and Cu+Mg>0.4. In the form of a strip, the alloy may be coated on one or... | 09/17/2002 |
| 6440583 | Aluminum alloy for a welded construction and welded joint using the same Disclosed is an Al alloy for a welded construction having excellent welding characteristics, which Al alloy comprises 1.5 to 5 wt % of Si (hereinafter, wt % is referred to as %), 0.2 to 1.5% of Mg, 0.2 to 1.5% of Zn, 0.2 to 2% of Cu, 0.1 to 1.5% of Fe, an... | 08/27/2002 |
| 6403232 | Aluminum brazing sheet A core material of an aluminum brazing sheet restricts Mg to less than 0.3 wt % and Fe to not more than 0.2 wt %, and contains more than 0.2 wt % and not more than 1.0 wt % of Cu, 0.3 to 1.3 wt % of Si, 0.3 to 1.5 wt % of Mn and the balance of Al and inev... | 06/11/2002 |