Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 6306458 | Process for recycling vapor phase aluminiding donor alloy A process for reclaiming aluminum alloy donor from a vapor phase deposition process used to form a diffusion aluminide coating on a component, such as the high-temperature superalloy components of gas turbine engines. The process generally entails recycli... | 10/23/2001 |
| 6305077 | Repair of coated turbine components A gas turbine engine hot section component having a ceramic thermal barrier coating is repaired by removing the ceramic thermal barrier coating, removing oxidation products and corrosion products from the metallic bond coating beneath the ceramic thermal ... | 10/23/2001 |
| 6299151 | Fluid distribution system A fluid distribution system for transporting pressurized fluid. The system includes a plate having a first face and a slot extending along the face between opposite first and second ends of the slot. In addition, the system includes a body having a surfac... | 10/09/2001 |
| 6299509 | Tumble medium and method for surface treatment A tumble medium for surface treatment of an article having a first radiographic signature comprises material having a second radiographic signature different from the first radiographic signature sufficient to enable radiographic detection of the material... | 10/09/2001 |
| 6296448 | Simultaneous offset dual sided laser shock peening An article and method for laser shock peening the article to form pairs of longitudinally spaced apart first and second laser shock peened spots that are on opposite sides of the article, simultaneously laser shock peened, and transversely offset from eac... | 10/02/2001 |
| 6297474 | Heating apparatus for a welding operation and method therefor A heating apparatus and method for pre-weld heat treating, welding and post-weld heat treating a superalloy article in a single enclosure while avoiding oxidation of the article. The enclosure is preferably equipped with a one-way valve that permits the e... | 10/02/2001 |
| 6282786 | Method of making injection formed hybrid airfoil A hybrid gas turbine engine airfoil is made by forming a metal airfoil with a pocket in one side thereof. The pocket is covered by a caul. An elastomeric fluid is injected into the pocket and cured therein for bonding thereto. The caul is removed from the... | 09/04/2001 |
| 6283356 | Repair of a recess in an article surface A method for repairing a recess in an article surface comprises providing first and second metallic powders. The first powder has a first melting temperature and the second powder has a second melting temperature less than the first melting temperature. T... | 09/04/2001 |
| 6281473 | Apparatus and method for controlling confinement media thickness in laser shock peening A laser shock peening system includes an apparatus and method that senses a thickness of laser transparent confinement media flow, such as water. In one embodiment, the apparatus indicates a proper thickness, in another embodiment, the apparatus controls ... | 08/28/2001 |
| 6276597 | Tip cap hole brazing and oxidation resistant alloy therefor A tip cap hole is loaded with a first composition comprising particles of a first alloy having a solidus temperature above the brazing temperature. The first composition is covered with a second composition comprising particles of a second alloy having a ... | 08/21/2001 |
| 6274193 | Repair of a discrete selective surface of an article A method for restoring a protective coating including a metallic environmental resistant coating of a coating total thickness within a coating design thickness range on a metal substrate of an article includes the application of a replacement material to ... | 08/14/2001 |
| 6273788 | Sustained surface scrubbing The surface of a workpiece is treated by discharging a stream of pliant shot in a carrier fluid at a shallow angle of incidence thereagainst. The shot is then scrubbed laterally along the surface for selectively removing target material therefrom.... | 08/14/2001 |
| 6254347 | Striated cooling hole A turbine airfoil includes pressure and suction sides extending longitudinally from root to tip, and chordally between leading and trailing edges. A striated discharge hole terminates outside the airfoil for discharging coolant therefrom.... | 07/03/2001 |
| 6253619 | Adjustable acoustic mirror An ultrasonic inspection element and method are provided for improved ultrasonic inspection of curved entry surface parts. The transducer element may be spherically focused, or have a flat surface. The transducer/mirror element combination is used to insp... | 07/03/2001 |
| 6254997 | Article with metallic surface layer for heat transfer augmentation and method for making An article comprising a substrate and an outer metallic layer, such as a coating, is provided with augmented heat transfer from the substrate through the combination of a layer thickness of about 0.003" to about 0.017", a layer surface roughness of at lea... | 07/03/2001 |
| 6250166 | Simulated dovetail testing A dovetail of a rotor blade is mounted in a complementary slot in a rotor disk. Life of the dovetail is simulated by providing a specimen dovetail mounted in a complementary slot in a fixture. Relative stiffness of the specimen dovetail and fixture are ta... | 06/26/2001 |
| 6234872 | Free flow abrasive hole polishing A free flow abrasive hole polishing system and method improves air flow and resultant component cooling efficiency for an apertured article. The free flow abrasive hole polishing system mixes an abrasive particle component with a carrier media to create a... | 05/22/2001 |
| 6233823 | Method of making plastically formed hybrid airfoil A plain blank is sized to produce an airfoil. The blank is plastically formed to include a pocket blending smoothly in one side thereof. Leading and trailing edges of the airfoil are benched. And, filler is placed into the pocket to effect an aerodynamic ... | 05/22/2001 |
| 6233822 | Repair of high pressure turbine shrouds A method for repairing the shroud surfaces of a gas turbine engine to provide corrosion and oxidation resistance of the shroud segments while also restoring the dimensional integrity of the shroud segments. The method entails removing the oxidation and co... | 05/22/2001 |
| 6231035 | Workpiece fixture A fixture for holding a workpiece in a predetermined position during a manufacturing operation. The fixture includes a support having a surface for receiving the workpiece. The surface has a reference point for locating and orienting the workpiece in the ... | 05/15/2001 |
| 6228510 | Coating and method for minimizing consumption of base material during high temperature service An improved coating and method for applying the coating to minimize the consumption of substrate material during high temperature service by formation of an intermediate metal aluminide layer. A layer of Ni or Co or combinations of Ni and Co are added to ... | 05/08/2001 |
| 6223573 | Method for precision temperature controlled hot forming Methods and apparatus for operating a press, such as a forge or trim press, are directed at activating a ram in a press having a lower die and an upper die connected to a ram by heating a workpiece to a first temperature above an impact temperature. The w... | 05/01/2001 |
| 6224673 | Apparatus for masking turbine components during vapor phase diffusion coating Apparatus and method to improve vapor phase diffusion coating of articles. The apparatus provides a barrier to segregate the portion of the article requiring coating from the portion of the article not requiring coating. The fixture is reusable, being una... | 05/01/2001 |
| 6224941 | Pulsed-vapor phase aluminide process for high temperature oxidation-resistant coating applications An improved process for applying aluminide coatings to superalloy components used in gas turbine applications resulting in a more uniform coating with less hazardous waste by-products. The process involves the steps of placing the superalloy components in... | 05/01/2001 |
| 6225771 | Probe chord error compensation Probe chord error compensation is provided in a machine tool including a rotary member for supporting a work piece and a probe having a path of travel. The compensation is accomplished by using the probe to measure an observed diameter of the work piece a... | 05/01/2001 |
| 6220069 | Method and apparatus for bending tubing A bend die assembly includes a bend die and a clamp block assembly. The bend die is reversible and includes a T-shaped projection which extends outward from the bend die. The clamp block assembly includes a first clamp block and a mating second clamp bloc... | 04/24/2001 |
| 6220947 | Tumble medium and method for surface treatment A tumble medium for surface treatment of an article having a first radiographic signature comprises material having a second radiographic signature different from the first radiographic signature sufficient to enable radiographic detection of the material... | 04/24/2001 |
| 6215097 | On the fly laser shock peening An on the fly method of laser shock peening a gas turbine engine part by continuously moving a metallic gas turbine engine part while continuously firing a stationary laser beam, which repeatably pulses between relatively constant periods, on a portion of... | 04/10/2001 |
| 6203847 | Coating of a discrete selective surface of an article A method for restoring or enhancing an environmental resistant coating of a coating total thickness within a coating design thickness range on a metal substrate of an article includes the application of a restoring or enhancing metal to at least one discr... | 03/20/2001 |
| 6202277 | Reusable hard tooling for article consolidation and consolidation method Hard tooling for consolidation of a workpiece there between is preserved for reuse by disposing between the tooling and a workpiece a plurality of distinct, superimposed sacrificial sheets, for example metal foils, to isolate the workpiece from the toolin... | 03/20/2001 |
| 6200689 | Laser shock peened gas turbine engine seal teeth The present invention includes a method of repairing an annular metallic article and the repaired article itself which has an axially extending annular support and a projection generally radially extending therefrom. The projection has an associated opera... | 03/13/2001 |
| 6199276 | Method for removing a dense ceramic thermal barrier coating from a surface A method is provided for removing a dense ceramic thermal barrier coating (TBC) from an article surface over which the TBC is disposed, the article surface including an edge at which at least a portion of an interface between the article surface and the T... | 03/13/2001 |
| 6195891 | Method for identification and repair of indications in hardware A method for identifying and repairing indications open to the surface of a turbine component, such as cracks or other tight crevices that may develop during turbine engine operation. The process includes cleaning the component of debris, dirt or other fo... | 03/06/2001 |
| 6189356 | Method and apparatus for peening A mask for masking a corner of a metal component during peening. The component has a first surface defining an opening in the component and a second surface intersecting the first surface of the component at the corner. The mask includes a plug sized and ... | 02/20/2001 |
| 6187450 | Tip cap hole brazing and oxidation resistant alloy therefor A tip cap hole is loaded with a first composition comprising particles of a first alloy having a solidus temperature above the brazing temperature. The first composition is covered with a second composition comprising particles of a second alloy having a ... | 02/13/2001 |
| 6183811 | Method of repairing turbine airfoils A method for preventing the aluminizing of cooling holes and internal surfaces of an airfoil during vapor phase aluminizing. The method generally entails flowing a gas through internal cavities of the airfoil and out through the cooling holes, while the s... | 02/06/2001 |
| 6183347 | Sustained surface step scrubbing A workpiece includes a surface adjoining an aperture. The aperture is filled with a plug to provide a step adjoining the surface. A stream of pliant shot in a carrier fluid is discharged at a shallow angle of incidence against the plug and directed toward... | 02/06/2001 |
| 6183882 | In plane deflection coupon for monitoring and controlling of laser shock peening A test coupon is formed from a metallic strip having opposite first and second sides that generally define a plane of the strip and the strip includes a laser shock peened patch of the strip that has first and second laser shock peened surfaces on the fir... | 02/06/2001 |
| 6181727 | Coating for reducing operating temperatures of chamber components of a coating apparatus A component for use in a high-temperature environment such as the coating chamber of a PVD apparatus. A reflective coating on the component serves as a barrier to radiant heat transfer to the component by reflecting thermal radiation. The coating comprise... | 01/30/2001 |
| 6174380 | Method of removing hot corrosion products from a diffusion aluminide coating A method of removing hot corrosion products from the surface of a component exposed to corrosive conditions at elevated temperatures, as is the case with turbine, combustor or augmentor components of gas turbine engines. The method is particularly suited ... | 01/16/2001 |
