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| Number | Title | Issue Date |
| 7727342 | Low carbon microalloyed steel A low carbon microalloyed steel, comprising in weight % about: 0.05-0.30 C; 0.5-1.5 Mn; 0.04 max S; 0.025 max P; 1.0 max Si; 0.5-2.0 Ni; 0.05-0.30 V; 0-2.0 Cu; up to 0.0250 N; up to 0.2 Cb; up to 0.3 Cr; up to about 0.15 Mo; up to about 0.05 Al; balance Fe and minor... | 06/01/2010 |
| 7135078 | Nickel-free white gold alloy compositions with reversible hardness characteristics A nickel-free white gold alloy composition having selectively reversible hardness characteristics between its annealed- and aged-hardness values, consists essentially of: about 55–60% gold; about 6.0–10.0% palladium; about 5.0–12.0% copper; about 0.1–2.0% zi... | 11/14/2006 |
| 6880222 | Method of manufacturing a golf club head A golf club head has a face portion, a crown portion, a sole portion, a side portion and a hosel portion. Each portion is made of titanium or a titanium alloy. The side portion is formed integrally entirely from its toe side to its back side and its heel side. The s... | 04/19/2005 |
| 6663728 | Gold-free platinum material dispersion-strengthened by small, finely dispersed particles of base metal oxide A gold-free platinum material that is dispersion-strengthened by small, finely dispersed particles of base metal oxide. The base metal is either 0.01-0.5 wt. % Sc or a mixture/alloy of Sc and at least one metal from the group consisting of Zr, Y, and Ce w... | 12/16/2003 |
| 6562158 | Heat-treatable platinum-gallium-palladium alloy for jewelry A method of making jewelry comprising formulating a platinum alloy of at least 95 weight percent platinum, 1 to 5 weight gallium and palladium in an amount of less than about 3 weight percent, heat treating this alloy to increase the Vickers hardness by a... | 05/13/2003 |
| 6406568 | 18-karat green gold alloy compositions An improved 18-karat green gold alloy composition comprises about 75.0% gold; about 6.0-7.0% silver; about 9.0-11.7% copper; and about 6.5-9.0% zinc. The improved alloys are capable of being age-hardened to a hardness of about 240 VHN by being heated to a... | 06/18/2002 |
| 6153023 | Hardened metal product produced by shot peening with shot having high hardness A method for shot peening a hard metal product that has a hardened surface. The method includes projecting shot on the hardened surface of the hard metal product. The ratio of the Vickers hardness of the shot to that of the hardened surface is 0.8-1.6, an... | 11/28/2000 |
| 6071470 | Refractory superalloys Refractory superalloys consist essentially of a primary constituent selected from the group consisting of iridium, rhodium, and a mixture thereof, and one or more additive elements selected from the group consisting of niobium, tantalum, hafnium, zirconiu... | 06/06/2000 |
| 5919320 | Nickel-free white gold alloy with reversible hardness characteristics A hardenable white gold alloy consists essentially of about 55-60 % gold, about 12-20% silver, about 8-15% copper, about 8-18% palladium, about 0.0-1.0% tin, zinc indium or cobalt, and, optionally, about 0.005-0.02% iridium and/or ruthenium, and also abou... | 07/06/1999 |
| 5846352 | Heat treatment of a platinum-gallium alloy for jewelry A platinum alloy containing 1 to 9 percent gallium and minor amounts of property enhancing additives, eg. up to 3% Pd. This alloy can be heat-treated to a Vickers hardness that is increased by at least over 25% beyond its initial, untreated value and typi... | 12/08/1998 |
| 5840135 | Aluminum-beryllium alloys having high stiffness and low thermal expansion for memory devices Articles of manufacture are made of aluminum-beryllium alloys having substantially randomly distributed aluminum-rich and beryllium rich phases to provide substantially isotropic mechanical properties, such as high stiffness and low co-efficients of therm... | 11/24/1998 |
| 5817195 | Silver colored alloy with low percentage of nickel and copper A silver colored alloy highly tarnish resistant, sterling silver is provided or having included therein: 90% to 92.5% by weight Silver; 5.75% to 7.5% by weight Zinc; 0.25% to less than 1% by weight Copper; 0.25% to 0.5% by weight Nickel; 0.1% to 0.25% by ... | 10/06/1998 |
| 5641454 | Composite material having anti-wear property and process for producing the same Disclosed are a composite material having an anti-wear property and a process for producing the same. The composite material includes a matrix of a low melting point Sn alloy having a melting point of from 80° to 280° C., and metallic dispersing particl... | 06/24/1997 |
| 5605583 | Metallurgical silicon with controlled microstructure for the preparation of halogenosilanes A metallurgical silicon with controlled microstructure for the preparation of halogenosilanes, characterized by an image of the microstructure obtained with the scanning electron microscope which is processed by binarization between an intermetallic phase... | 02/25/1997 |
| 5603780 | Light weight, high strength beryllium-aluminum alloy A light weight, high strength ternary or higher-order cast beryllium-aluminum alloy, including approximately 60 to 70 weight % beryllium, one or both of from approximately 0.5 to 4 weight % silicon and from 0.2 to 4.25 weight % silver, with the balance al... | 02/18/1997 |
| 5565168 | Zinc-aluminum casting method A zinc-aluminum casting alloy composed of 9 to 12% by weight aluminum, 0.6 to 1% by weight copper, 0.02 to 0.05% by weight magnesium, balance high-grade zinc. In order to improve the tribologocal properties of that material for use in sliding surface bear... | 10/15/1996 |
| 5520752 | Composite solders A solder composition and method of soldering using composite solders comprising a solder alloy and intermetallic filler particles. The intermetallic filler particles are lead-free, have high strength, wet and disperse well in solder joints, remain uniform... | 05/28/1996 |
| 5512242 | Tin-base white metal bearing alloy excellent in heat resistance and fatigue resistance A tin-base white metal bearing alloy essentially consists of, by weight, more than 3% and up to 15% Sb, more than 2% and up to 10% Ni, more than 0.001% and up to 1% Cr, up to 9% Cu, and balance of Sn and incidental impurities. Since Ni increases the stren... | 04/30/1996 |
| 5472333 | Spinnerette from gold-platinum-palladium-rhodium alloy A spinneret consisting essentially of an alloy consisting essentially of from 30-80 wt. % gold, 1-60 wt. % platinum, 1-50 wt. % palladium, 0.1-5 wt. % rhodium and 0-0.4 wt. % iridium and/or ruthenium, said alloy having a VICKERS hardness of from 145-340 a... | 12/05/1995 |
| 5455004 | Lead-free alloy containing tin, zinc, indium and bismuth A lead-free alloy suitable for soldering comprising from about 82% to about 90% tin, from about 4.5% to about 6% zinc, from about 3.5% to about 6% indium and from about 1% to about 5% bismuth. The melting temperature of the alloy is preferably below 190°... | 10/03/1995 |
| 5435968 | A lead-free solder composition An enhanced bonding design utilizing tin and copper to create tin alloy solders for use in the manufacturing of heat exchangers and other soldering applications. The tin alloy solders contain as primary constituent metals 3.0-15.0 wt. % copper and 79.0-97... | 07/25/1995 |
| 5429689 | Lead-free solder alloys A non-toxic alloy for soldering electronic components comprising 80% Sn, 5-14.5% In, 4.5-14.5% Bi and 0.5% Ag. The disclosed alloy has a fine microstructure. Particles of intermetallic compounds are finely dispersed throughout the matrix, thereby inhibiti... | 07/04/1995 |
| 5421916 | Light weight, high strength beryllium-aluminum alloy A light weight, high strength ternary or higher-order cast beryllium-aluminum alloy, including approximately 60 to 70 weight % beryllium, one or both of from approximately 0.5 to 4 weight % silicon and from 0.2 to 4.25 weight % silver, with the balance al... | 06/06/1995 |
| 5411703 | Lead-free, tin, antimony, bismtuh, copper solder alloy A high solidus temperature, high service temperature, high strength multi-component solder alloy having a major portion of Sn and effective amounts of Sb, Bi and Cu.... | 05/02/1995 |
| 5395464 | Process of grain enlargement in consolidated alloy powders A method for obtaining a product from pre-alloyed powders in which the powders are subjected to compaction treatment. The powders are first subjected to pre-treatment under low pressure (or without pressure) at a temperature such that segregating material... | 03/07/1995 |
| 5393723 | Catalyst for improving the combustion and operational qualities of hydrocarbon fuels The catalyst is provided for improving the performance of hydrocarbon fuels used in internal combustion engines. The catalyst is a based metal alloy catalyst including tin, antimony, lead, mercury and thallium in the following proportions by weight percen... | 02/28/1995 |
| 5393489 | High temperature, lead-free, tin based solder composition Disclosed is a lead-free, high solidus temperature, high Sn alloy. The solder alloys contain in excess of 90 weight percent Sn, and an effective amount of Ag and Bi, optionally with Sb or with Sb and Cu. Another form of the alloy contains Ag and Sb, optio... | 02/28/1995 |
| 5338378 | Dental gold alloy with age-hardenability at intraoral temperature A dental gold alloy which is soft enough for adjustment of a patient's occlusal condition, which is age-hardenable with passage of time at temperatures encountered within a patient's oral cavity, and which has a single phase structure which imparts improv... | 08/16/1994 |
| 5238883 | Process for preparing self-supporting bodies and products produced thereby Self-supporting bodies are produced by reactive infiltration of a parent metal into a boron donor material and a carbon donor material. The reactive infiltration typically results in a composite comprising a boron-containing compound, a carbon-containing ... | 08/24/1993 |
| 5180551 | Gold alloys of exceptional yellow color and reversible hardness A unique hardenable gold based alloy, especially a 14 karat gold alloy containing gold, silver, copper, zinc, cobalt and an alternative alloy additionally containing iridium. The alloy has a fine grained structure, a lower hardness in the soft condition, ... | 01/19/1993 |
| 5173132 | Gold spring alloy composition This invention concerns a new spring gold alloy and heat treatment process specific to the new gold spring alloy. The heat treatment process and gold spring alloy are specifically formulated to work synergistically so as to optimize the ductility of the a... | 12/22/1992 |
| 5108520 | Heat treatment of precipitation hardening alloys An aging process for solution-heat-treated, precipitation hardening metal alloy includes first underaging the alloy, such that a yield strength below peak yield strength is obtained, followed by higher aging for improving the corrosion resistance of the a... | 04/28/1992 |
| 4917964 | Porous metal-second phase composites A method is taught for the in-situ precipitation of second phase materials, such as ceramic or intermetallic particles, in a substantial volume fraction of solvent metal matrix. The invention involves the propagating reaction of the second phase-forming c... | 04/17/1990 |
| 4916030 | Metal-second phase composites A method is taught for the introduction of in-situ precipitated second phase materials, such as ceramic or intermetallic particles in a metal matrix, to a host metal. When an initial solvent-assisted reaction is utilized, metal-second phase composites hav... | 04/10/1990 |
| 4916029 | Composites having an intermetallic containing matrix This invention relates to a composite material comprising an in-situ precipitated second phase in an intermetallic matrix, and to the process for making such a composite.... | 04/10/1990 |
| 4869757 | Silver alloys of exceptional and reversible hardness A unique hardenable silver alloy is provided which is solution annealed and preferably age-hardened to yield a silver alloy of exceptional and reversible hardness. The alloys utilize intermetallic systems comprising; silver, copper, combined with lithium ... | 09/26/1989 |
| 4810308 | Silver alloys of exceptional and reversible hardness A unique hardenable silver alloy is provided which is solution annealed and preferably age-hardened to yield a silver alloy of exceptional and reversible hardness. The alloys utilize intermetallic systems comprising silver, copper, combined with lithium a... | 03/07/1989 |
| 4753688 | Process for strengthening lead-antimony alloys A process is provided for increasing the strength of antimony-lead alloys by specially treating an alloy which contains an effective amount of arsenic in the alloy, the process comprising working the alloy, rapidly heat treating the alloy, which includes ... | 06/28/1988 |
| 4647321 | Dispersion strengthened aluminum alloys Aluminum alloy compositions and related fabrication techniques are described. Articles made of the composition by the process contain a novel dispersed strengthening phase based on iron and refractory metals. Rapid solidification techniques are used to as... | 03/03/1987 |
| 4629516 | Process for strengthening lead-antimony alloys A process is provided for increasing the strength of antimony-lead alloys by specially treating an alloy which contains an effective amount of arsenic in the alloy, the process comprising working the alloy, rapidly heat treating the alloy, which includes ... | 12/16/1986 |
