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| Number | Title | Issue Date |
| 7118636 | Precipitation-strengthened nickel-iron-chromium alloy An Fe—Ni—Cr alloy formulated to contain a strengthening phase that is able to maintain a fine grain structure during forging and high temperature processing of the alloy. The alloy contains a sufficient amount of titanium, zirconium, carbon and nitrogen so that ... | 10/10/2006 |
| 7086285 | Nondestructive inspection method and system therefor A method and system for determining the fiber volume fraction of a composite structure. The system includes a unit for ultrasonically determining the porosity volume fraction in the article, and a unit for calculating the volume fraction of the fibrous reinforcement... | 08/08/2006 |
| 7073247 | Method of brazing a liquid-cooled stator bar A method for metallurgically bonding a stator bar to a coupling to reduce the incidence of leak paths resulting from corrosion. The stator bar comprises strands through which a liquid coolant can flow. Adjacent ends of the strands are received in an interior cavity ... | 07/11/2006 |
| 7065872 | Method of processing a multiple alloy rotor A method of processing a rotor. The rotor is formed by casting an ingot to have first and second regions formed of different alloys that intermix during casting to define a transition zone therebetween. The ingot is forged to yield a rotor forging that contains axia... | 06/27/2006 |
| 7028882 | Process and apparatus for boiler tube panel welding and straightening An apparatus and process for depositing an overlay weld on a boiler tube panel comprising a plurality of tubes with adjacent tubes joined together with membranes therebetween, and then straightening the panel in response to bowing that occurs as a result of depositi... | 04/18/2006 |
| 7026554 | Stator bar with exruded groundwall insulation An insulated stator bar and method of applying an outer insulation to a bare stator bar to form the insulated stator bar. The outer insulation surrounds a perimeter of the bare bar and extends along a longitudinal length of the bar. The outer insulation comprises at... | 04/11/2006 |
| 7017414 | Ultrasonic inspection method and system therefor A method and system for ultrasonically inspecting turbine wheels and other disk-shaped articles having a central opening and multiple secondary openings radially spaced outward from the central opening. At least one ultrasonic transducer is placed in at least one of... | 03/28/2006 |
| 7014723 | Nickel-base alloy Castable and weldable nickel-base alloys that exhibit a desirable balance of strength and resistance to corrosion and oxidation suitable for gas turbine engine applications. The alloy contains, by weight, about 10% to about 25% cobalt, about 20% to about 28% chromiu... | 03/21/2006 |
| 6962483 | Multiple alloy rotor A monolithic rotor comprising first and second rotor regions axially aligned within the monolithic rotor and a transition zone therebetween. The first and second rotor regions are formed of different alloys and the transition zone having a composition that differs f... | 11/08/2005 |
| 6955308 | Process of selectively removing layers of a thermal barrier coating system A process of selectively removing layers of a thermal barrier coating system from a surface of a component. A thermal barrier coating system of interest comprises an inner metallic bond coat layer, an outer metallic bond coat layer that is less dense than the inner ... | 10/18/2005 |
| 6952094 | Nondestructive inspection method and system therefor A method and system for inspecting a turbine wheel having axial slots along a perimeter thereof that are configured for mating with and securing airfoil members to the perimeter of the wheel, and an annular slot that intersects the axial slots. The method and system... | 10/04/2005 |
| 6930471 | Hybrid synchronous/induction generator power plant A power generation plant comprising a power generating unit that includes at least one first generator, such as an induction generator, coupled to at least one synchronous generator having a rotor with a superconducting (SC) coil. The induction generator and the SC ... | 08/16/2005 |
| 6919121 | Component with repaired thermal barrier coating A method of repairing a thermal barrier coating (16) on a component (10) designed for use in a hostile thermal environment, such as turbine, combustor and augmentor components of a gas turbine engine. The method more particularly involves repairing a t... | 07/19/2005 |
| 6902633 | Nickel-base-alloy A nickel-base alloy consists of, by weight, about 15.0 to about 17.0% chromium, about 7.0 to about 10.0% cobalt, about 1.0 to about 2.5% molybdenum, about 2.0 to about 3.2% tungsten, about 0.6 to about 2.5% columbium, less than 1.5% tantalum, about 3.0 to about 3.9%... | 06/07/2005 |
| 6888090 | Electron beam welding method A method of forming a welded component by electron beam welding, and the resulting welded assembly. The method is particularly directed to the welding of a component whose subcomponents are formed of dissimilar metals, with the result that an electron beam used to w... | 05/03/2005 |
| 6884964 | Method of weld repairing a component and component repaired thereby The method of repairing a metal alloy component, and the resulting repaired component. The method involves machining the component surface to remove a defect, and then placing in the resulting surface cavity a filler insert whose size and shape are predetermined so ... | 04/26/2005 |
| 6864617 | Retaining system for a rotor of a dynamoelectric machine A retaining system for field winding end turns of a rotor, such as for a dynamoelectric machine. The rotor has an outer peripheral surface, radial end surfaces, axially-extending slots in the peripheral surface, and field windings in the slots. The field windings ax... | 03/08/2005 |
| 6830437 | Assembly containing a composite article and assembly method therefor An assembly that includes a CMC article, and a method of forming the assembly, so as to reduce the likelihood during a transient thermal condition of the CMC article becoming interlocked with the worn shank of a fastener used to secure the article to its support str... | 12/14/2004 |
| 6821086 | Turbomachine seal assembly and method therefor A seal assembly and method for a turbomachine having a rotary member and a stationary member circumscribing the rotary member. The seal assembly comprises an annular-shaped platform on the rotary member so as to be disposed at an outer circumferential region thereof... | 11/23/2004 |
| 6803693 | Stator core containing iron-aluminum alloy laminations and method of using An electrical machine stator core and method for reducing electromagnetic losses and the consequent heating of the core. The stator core makes use of laminations made from an iron-aluminum alloy at the core-ends of the core, while laminations between the core-ends a... | 10/12/2004 |
| 6800829 | Method and apparatus for repairing air-cooled airfoils Method and apparatus for repairing an article, such as an air-cooled component, during which at least a portion of the component must be removed and replaced. The method and apparatus make use of one or more workpiece holders adapted to secure and position an compon... | 10/05/2004 |
| 6743305 | High-strength high-toughness precipitation-hardened steel A stainless steel alloy that exhibits both high strength and toughness as a result of having particular ranges for chemistry, tempering temperatures and grain size. The alloy is a precipitation-hardened martensitic stainless steel with an ultimate tensile strength o... | 06/01/2004 |
| 6740177 | Nickel-base alloy A castable and weldable nickel-base alloy that exhibits a desirable balance of strength and resistance to corrosion and oxidation suitable for gas turbine engine applications. A suitable composition for the alloy consists essentially of, by weight, 10% to 25% cobalt... | 05/25/2004 |
| 6740364 | Method of depositing a compositionally-graded coating system A process for depositing a ceramic coating system for Si-containing materials, particularly those for articles exposed to high temperatures. The process is particularly applicable to depositing a compositionally-graded coating system comprising multiple ceramic laye... | 05/25/2004 |
| 6727465 | Apparatus for overlay welding of a tube exterior An overlay welding apparatus for depositing an overlay weld on rotating tube stock. The apparatus comprises an elongate frame and supports for rotating the tube stock about a central axis thereof. The tube stock is inclined relative to horizontal when supported by t... | 04/27/2004 |
