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| Number | Title | Issue Date |
| 4198442 | Method for producing elevated temperature corrosion resistant articles A method for the production of metal articles resistant to corrosion at elevated temperatures. The method involves the application of a first coating on an article surface, this coating comprising a cobalt, iron or nickel alloy which is compatible with th... | 04/15/1980 |
| 4176433 | Method of remanufacturing turbine vane clusters for gas turbine engines A method for remanufacturing turbine vane clusters of gas turbine engines is disclosed. Concepts and techniques for salvaging undamaged vanes from a damaged vane cluster are developed. In accordance with the method taught, protective coatings on the vane ... | 12/04/1979 |
| 4168183 | Process for improving the fatigue properties of structures or objects This is a process for improving the fatigue properties of structures which have dislocations or deformed regions in the surface layers. Solute is diffused into this surface region and inhibits the atomic movements which lead to initiation and growth of fa... | 09/18/1979 |
| 4161414 | Process for fabricating fluid-control members for internal-combustion engines and the like A stem valve for an internal-combustion engine, especially one burning heavy oil, has a body composed of a first nonferrous alloy with an annular seat-engaging zone into which a second nonferrous alloy has been diffused to form a third alloy in situ. The ... | 07/17/1979 |
| 4156040 | Coagulation coating process A coagulation process for coating various substrates with organic resins which may be admixed with reactive or nonreactive particles. The process comprises (A) providing the substrate to be coated with a dry coagulating compound surface and (B) exposing s... | 05/22/1979 |
| 4152223 | Plasma sprayed MCrAlY coating and coating method The oxidation-corrosion resistance of plasma sprayed MCrAlY overlay coatings is improved. The coating method involves plasma spraying the MCrAlY coating alloy onto a superalloy substrate, applying a chromium or aluminum envelope over the outer surface of ... | 05/01/1979 |
| 4145481 | Process for producing elevated temperature corrosion resistant metal articles A process for providing coatings on metal articles whereby the articles will be resistant to corrosion at elevated temperatures. The process involves the application of an overlay on an article surface, the overlay comprising a ductile metal of a composit... | 03/20/1979 |
| 4098450 | Superalloy article cleaning and repair method A narrow crevice in a Ni-base superalloy article is repaired by first removal of a complex oxide of at least one metal selected from Al and Ti, by treatment of the oxide in the crevice with gaseous active fluoride ions in a non-oxidizing atmosphere at a t... | 07/04/1978 |
| 4093453 | Method of making an ordered alloy A method of making a substantially ordered alloy which involves providing a metal base consisting of at least one of the ingredients of the desired alloy, depositing a thin metal layer on the base, the metal layer containing the remaining constituents of ... | 06/06/1978 |
| 4091146 | Flexible, low porosity airfoil skin A flexible, low porosity airfoil skin is described which includes multilayer flexible, annealed metallic mesh members consisting of two or three such members selected from the class consisting of nickel, Monel alloy, and stainless steel, the members havin... | 05/23/1978 |
| 4070507 | Platinum-rhodium-containing high temperature alloy coating method Aluminized nickel-base, cobalt-base and nickel-cobalt-base heat resistant alloy substrates are provided in which, prior to aluminizing the substrate, the substrate is provided with a thin coating of rhodium and thereafter a thin coating of platinum, the c... | 01/24/1978 |
| 4055706 | Processes for protecting refractory metallic components against corrosion In the process of forming a coating selected from nickel and cobalt-based atings on a surface of a component made of a metallic material having a total composition by weight comprising at least 50% of metal selected from the group consisting of iron, coba... | 10/25/1977 |
| 4050133 | Method of refurbishing turbine vanes and the like A method for repairing turbine vanes and the like which have become worn or cracked after extended periods of use. The method embraces the steps of applying molten metal containing a predetermined quantity of silicon to the cracks, and overall to the worn... | 09/27/1977 |
| 4042426 | Chromized steel substrate An improved steel substrate for preparing chromized steel, the substrate consisting essentially of a flat rolled plain low carbon columbium treated steel initially having a total carbon content of at least 0.03% and containing about 0.03-0.15% columbium. ... | 08/16/1977 |
| 4031274 | Method for coating cavities with metal An article having an outer surface and an inner cavity, such as a hole or channel with a metallic inner surface, is provided with an inner metallic coating on the inner surface and, in one form, an outer metallic coating on the outer surface. The inner co... | 06/21/1977 |
| 3997466 | Metallic foil coated with scandium tritide for use as a beta particle source in an ionization detector at high temperatures and method of manufacture A metallic foil coated with scandium tritide is treated so as to manifest a legally acceptable tritium emanation rate at temperatures above 225° C, thereby becoming usable as a beta particle emitter is ionization detectors such as electron capture detect... | 12/14/1976 |
| 3977840 | Solderable thin film microcircuit with stabilized resistive films A metalization process for the manufacture of hybrid integrated circuit elements including boards and semiconductors to be attached thereto involves applying to a substrate of insulating material such as aluminum oxide, successive layers of sputtered nick... | 08/31/1976 |
| 3961910 | Rhodium-containing superalloy coatings and methods of making same Superalloy structures, such as high temperature components for jet engines and the like, are provided with aluminum-containing diffusion coatings enabling guantum extensions of service life through unique distributions therein of rhodium. The rhodium is p... | 06/08/1976 |
| 3953246 | Gold diffusion process and shaped metal articles thereby An improved gold diffusion coated shaped copper alloy article is provided by forming a copper alloy with chemical composition in the range 1 to 10% of aluminum and/or 0 to 10% of tin and optionally from 0 to 5% of free machining additives such as lead, se... | 04/27/1976 |
| 3940293 | Method of producing amorphous cutting blades Metal alloys in an amorphous state are employed in the fabrication of cutting implements such as razor blades or knives. The implement may be formed from the amorphous metal or a coating of the amorphous metal may be applied. Such products may be formed f... | 02/24/1976 |
| 3935988 | Process of producing solderable composites containing AgCdO A process for making a solderable composite body containing silver cadmium oxide comprising forming an assembly having an intermediate layer of a silver copper alloy located between a layer of a silver cadmium alloy and a layer of silver of silver alloy, ... | 02/03/1976 |
| 3935345 | Electroless plating of peroxide forming metals A method of electroless plating together with electroless plating solutions for plating the substrate of a transition metal capable of forming metal peroxides such as molybdenum or tungsten with a layer of metal plate such as chromium, cobalt, nickel or r... | 01/27/1976 |
