...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 7316850 | Modified MCrAlY coatings on turbine blade tips with improved durability There is provided a method for depositing a modified MCrAlY coating on a turbine blade tip. The method utilizes laser deposition techniques to provide a metallurgical bond between a turbine blade substrate, such as a superalloy substrate, and the modified MCrAlY com... | 01/08/2008 |
| 7294214 | Medical devices Alloy compositions suitable for fabricating medical devices, such as stents, are disclosed. In certain embodiments, the compositions have small amounts of nickel, e.g., the compositions can be substantially free of nickel. ... | 11/13/2007 |
| 7166256 | Nonprecious dental casting alloy In order to provide an alloy which, on the one hand, can be used for the synthesis of crown and bridge frameworks that may be provided with a tooth-colored veneer of ceramic material, and, on the other hand, enable the synthesis of model casting bases, a nonprecious... | 01/23/2007 |
| 7067201 | Wear resistant coating for keel joint A method of reducing stress and wear on one or more components in a keel joint assembly in which a cobalt-based, wear resistant alloy coating is applied to the surfaces of one or more components. The use of the coating reduces stress and wear and achieves improved c... | 06/27/2006 |
| 7041251 | Dental casting alloy To improve the fracture resistance of a dental casting alloy without giving rise to undue hardness thereof it is proposed that the dental casting alloy substantially consists of | 05/09/2006 |
| 6986951 | Cobalt-based alloy for the coating of organs subject to erosion by liquid The present invention relates to a cobalt-based alloy for the coating of organs subject to erosion by liquid comprising chromium 28–32% by weight, tungsten 6–8% by weight, silicon 0.1–2% by weight, carbon 1.2–1.7% by weight, nickel 3–6% by weight, molybden... | 01/17/2006 |
| 6984458 | Method for treating organs subject to erosion by liquids and anti-erosion coating alloy The present invention relates to a method for treating organs subject to erosion by liquids, in particular vapour turbine components, which contemplates laser plating with a cobalt-based alloy comprising chromium from 28 to 32% by weight; tungsten from 5 to 7% by we... | 01/10/2006 |
| 6852176 | Wear-resistant, corrosion-resistant cobalt-based alloys A Co-based alloy comprising 13-16 wt % Cr, 20-30 wt % Mo, 2.2-3.2 wt % Si, and balance Co, with a Cr:Si ratio of between about 4.5 and about 7.5, a Mo:Si ratio of between about 9 and about 15, wear resistance, and corrosion resistance in both oxidizing and reducing ... | 02/08/2005 |
| 6773520 | Enhanced biocompatible implants and alloys The invention provides improved biocompatible implant alloys and methods of constructing artificial implants having improved long term wear properties. Cobalt-base biocompatible implant alloys provided according to the invention are essentially free of carbide, nitr... | 08/10/2004 |
| 6592811 | Magnetic material having a high saturation magnetic flux density and a low coercive force A magnetic material includes a main component expressed by a general formula CoNiFeX, wherein X is at least one element selected from the group consisting of Cr, TI, V, Ru, Rh, Os, Ir and Pt, and wherein weight percentages a, b, c and d of Co, Ni, Fe and ... | 07/15/2003 |
| 6479014 | Saw blade tips and alloys therefor A Co-based saw tip for attachment to saw blades for cutting wood, the saw tip formed from an alloy containing Mo in an amount from about 4 to about 20% by weight, Cr, C, and the balance Co. Certain embodiments specifically avoid all W. The tip optionally ... | 11/12/2002 |
| 6355212 | Alloy for corrosion-resistant coatings or surface coatings The invention is directed to anti-corrosive alloys and relates in particular to an alloy containing cobalt, chromium, aluminum, yttrium, silicon, a metal from the second main group, together with the corresponding oxide, in the following proportions: chro... | 03/12/2002 |
| 6350323 | High permeability metal glassy alloy for high frequencies A high permeability metal glassy alloy for high frequencies contains at least one element of Fe, Co, and Ni as a main component, at least one element of Zr, Nb, Ta, Hf, Mo, Ti, V, Cr, and W, and B. In the metal glassy alloy, the temperature interval ƊTx ... | 02/26/2002 |
| 6337007 | Method of making a Co-Fe-Ni soft magnetic thin film A soft magnetic thin film in the form of a Co--Fe--Ni--C thin film consisting essentially of 40-70% by weight of cobalt, 20-40% by weight of iron, 5-20% by weight of nickel, and 0.02-0.1% by weight of carbon has a high saturation magnetic flux density, ex... | 01/08/2002 |
| 6299703 | Process for fabricating improved iron-cobalt magnetostrictive alloy and article comprising alloy An article comprising an alloy exhibiting high magnetostriction in relatively low applied magnetic fields is provided, the alloy capable of being formed in a relatively easy manner and having desirable physical properties. The Co--Fe alloy of the inventio... | 10/09/2001 |
| 6221183 | High-strength and low-thermal-expansion alloy, wire of the alloy and method of manufacturing the alloy wire A high-strength low-thermal-expansion alloy consisting of, by weight, 0.06 to 0.50% C, 25 to 65% in total of one or both of 65% or less Co and less than 30% Ni, and balance of Fe as a main component, other optional elements and unavoidable impurities, and... | 04/24/2001 |
| 6077615 | Gas turbine nozzle, power generation gas turbine, co-base alloy and welding material A Co-base alloy including, by weight, 0.03-0.10% C, not more than 1.0% Si, not more than 1.0% Mn, 20-30% Cr, 15-23% Ni, 3-10% W, 5-10% Ta and 0.05-0.7% Zr, is used as a welding material. A gas turbine nozzle has a crack repaired with a multi-layer weld us... | 06/20/2000 |
| 6060174 | Bond coats for turbine components and method of applying the same A substrate (12) such as a superalloy turbine component is coated with a basecoat (14) of the type MCrAlY which also contains boron, where the amount of boron in the basecoat is in a concentration gradient where more boron is present near the top (16) tha... | 05/09/2000 |
| 6039920 | Process for making rhenium-containing alloys A process for making iron, cobalt and/or nickel base alloys containing rhenium. The process involves melting together the components that form the alloys, at least one of the components being a rhenium master alloy having 30 to 70 wt % rhenium, then casti... | 03/21/2000 |
| 6004661 | Amorphous magnetic material and magnetic core using the same An amorphous magnetic material possesses a composition essentially expressed by (Fe1-a-b Na Mb)100-x-y Six By (M denotes at least one kind of element selected from Mn, Cr, Co, Nb, V, Mo, Ta... | 12/21/1999 |
| 5976715 | Articles comprising magnetically soft thin films The invention is embodied in a soft magnetic thin film article comprising an iron--chromium-nitrogen (Fe--Cr--N) based alloy and methods for making such article. The soft magnetic thin film article is formed using an iron--chromium--nitrogen based alloy w... | 11/02/1999 |
| 5496631 | Perpendicular magnetic film, multilayered film for perpendicular magnetic film and process for producing perpendicular magnetic film Disclosed herein is a perpendicular magnetic film comprising a spinel thin film which is formed on a substrate, which contains Fe as the main ingredient and further contains Co and Ni, and which has a coercive force of less than 3000 Oe, the plane (400) t... | 03/05/1996 |
| 5422072 | Enhanced Co-based alloy A Co-based alloy exhibits superior high-temperature strength and resistance properties. In one embodiment, the Co-based alloy contains, in weight percent, from about 0.1 to about 1.2 of C; from about 0.01 to about 2 of at least one of Si and Mn; from abou... | 06/06/1995 |
| 5242758 | Gear A gear having good fatigue strength and corrosion resistance has a body with gear teeth formed of a hot isostatically pressed alloy powder. The alloy is cobalt based and consists of 10 to 35 wt % Cr, 0-22 wt % Ni, 0-20 wt % W, 0-20 wt % Fe, 0-10 wt % V, 0... | 09/07/1993 |
| 5190832 | Alloy and composite steel tube with corrosion resistance in combustion environment where V, Na, S and Cl are present An alloy exhibiting corrosion resistance in a combustion environment where V, Na, S and Cl are present comprises, in weight percent, not more than 0.05% C, 0.02-0.5% Si, 0.02-0.5% Mn, 15-35% Cr, 0.5-4% Mo, more than 40% but not more than 60% Co, 5-15% Fe,... | 03/02/1993 |
| 5154885 | Highly corrosion and/or oxidation-resistant protective coating containing rhenium A protective coating for metal components formed of nickel or cobalt-based superalloys essentially consists of the following constituents (in percentages by weight): 1 to 20% rhenium, 22 to 50% chromium, 0 to 15% aluminum, the share of chromium and aluminum ta... | 10/13/1992 |
| 5151137 | Soft magnetic alloy with ultrafine crystal grains and method of producing same A magnetic alloy with ultrafine crystal grains having a composition represented by the general formula: Co100.sub.-x-y-z-a-b Fea Mx By Xz Tb (atomic %) wherein M represents at least one element ... | 09/29/1992 |
| 5114503 | Magnetic core A magnetic core comprised of an amorphous alloy ribbon wound into a toroidal shape, wherein the said amorphous alloy has a composition of the formula: (Co1-x-y-z Fex Niy Mnz)100-a-b-c Ma Si... | 05/19/1992 |
| 5084795 | Magnetic head and method of manufacturing the same A metal-in-gap type magnetic head having a small undulation of reproduction output caused by a pseudo-gap and method of manufacture thereof are provided, wherein the magnetic head employs as a back core a ferrite (particularly, a ferrite containing Sn) an... | 01/28/1992 |
| 5069872 | Cutting tool An improved cutting tool is provided, especially useful for hand shears. The cutting edge of the tool is made of a wear-resistant material of either: (a) 85% to 96% tungsten carbide and 15% to 4% cobalt, (b) 60% to 89% tungsten carbide, 4% to 28% tantalum... | 12/03/1991 |
| 5039574 | Dental prosthesis with cobalt alloy frame The invention concerns a ceramically coated dental prosthesis in which the metal frame comprises an alloy containing, each in percent by weight: 0 to 0.4 carbon, 0.1 to 5.0 silicon, 0.01 to 8.0 manganese, 25 to 35 chromium, 1.0 to 8.0 molybdenum, 0.1 to 5... | 08/13/1991 |
| 5037494 | Amorphous alloy for strip-shaped sensor elements An amorphous alloy free of magnetostriction is employed in anti-theft labels, magnetic field detectors or the like, having a saturation induction of Bs ࣘ0.5T and a good responsiveness given an annealing treatment in the magnetic field for ach... | 08/06/1991 |
| 5034146 | Rare earth-based permanent magnet The magnetic properties or, in particular, coercive force of a sintered permanent magnet composed of a light rare earth element, boron and iron can be greatly improved without affecting the residual magnetic flux by the admixture of a relatively small amo... | 07/23/1991 |
| 5002731 | Corrosion-and-wear-resistant cobalt-base alloy Disclosed is a cobalt-base alloy that has a valuable combination of both corrosion- and wear-resistant properties. The alloy nominally contains, in percent by weight, 25.5 chromium, 8.5 nickel, 3.0 iron, 5 molybdenum, 2 tungsten, 0.40 silicon, 0.75 mangan... | 03/26/1991 |
| 4938267 | Glassy metal alloys with perminvar characteristics A series of glassy metal alloys with near zero magnetostriction and Perminvar characteristics of relatively constant permeability at low magnetic field excitations and constricted hysteresis loops is disclosed. The glassy alloys have the compositions Co | 07/03/1990 |
| 4874577 | Wear-resistant intermetallic compound alloy having improved machineability Disclosed is a wear-resistant intermetallic compound alloy having superior machineability which consists essentially of: 45-60% of either Ni or Co or both with cobalt content of at least 5%, at least one of 0.1-2% of Hf and 0.05-2% of Re, 0-2% of at least... | 10/17/1989 |
| 4837389 | Composite alloy structures A dimensional composition, a dimensionally restored alloy structure and a method of dimensionally restoring gas turbine and the like components that will be subsequently coated which includes low-pressure plasma spraying onto a damaged vane or other compo... | 06/06/1989 |
| 4830824 | Dental alloy castings and method An alloy for producing dental castings comprises 26.5 to 27.5% Cr, 4.5 to 5.5% Mo, 0.65 to 0.8% Mn, 0.4 to 0.5% Si, up to 1% Fe, up to 0.05% C, and the balance Co.... | 05/16/1989 |
| 4822567 | Antibiotic alloys Antibiotic alloys adapted for making sanitary articles, such as orthodontic fittings and component parts of water purifying apparatus, the alloy containing cobalt to impart an antibiotic ability hereto, and iron and nickel to enhance the workability there... | 04/18/1989 |
| 4781771 | Amorphous Co-based metal filaments and process for production of the same An amorphous Co-based metal filament having a circular cross-section made of an alloy composed mainly of Co-Si-B or Co-Me-Si-B (wherein Me is at least one metal selected from the group consisting of Fe, Ni, Cr, Ta, Nb, V, Mo, Mn, W and Zr). This filament ... | 11/01/1988 |