PRATT & WHITNEY SERVICES PTE LTD Patent applications |
Patent application number | Title | Published |
20140003952 | PROTECTIVE POLISHING MASK | 01-02-2014 |
20130323071 | POLISHING ASSEMBLY AND METHOD FOR POLISHING - An example component polishing method includes polishing a component protecting portions of the component during the polishing using a barrier spaced from the component. The barrier is configured to move together with the component during the polishing. | 12-05-2013 |
20100313405 | ELECTRICAL DISCHARGE ASSEMBLY AND METHOD FOR REPAIRING DIFFUSION COOLING PASSAGES - An electrical discharge assembly for processing a workpiece having a cooling passage with first and second portions includes a first electrode having a first shape for machining the first portion of the cooling passage and a second electrode having a second shape for machining the second portion of the cooling passage. In a method for repairing cooling passages in a workpiece, a first electrode having a first shape is positioned in a cooling passage. The first electrode is electrically powered to machine a first portion of the cooling passage. A second electrode having a second shape is positioned in the cooling passage. The second electrode is electrically powered to machine a second portion of the cooling passage. | 12-16-2010 |
20100044944 | FIXTURE FOR COMPRESSOR STATOR CHORD RESTORATION REPAIR - A fixture assembly for retaining a workpiece during a coining process includes a mounting block. The workpiece includes an airfoil portion, a platform, and feet extending from the platform opposite the airfoil portion configured to engage a retention slot in a gas turbine engine, each foot defining a substantially arcuate engagement surface. The mounting block includes a first portion having a slot defined therein between opposite first and second lateral edges and having an exposed front face, first and second retaining structures positioned adjacent to the first and second lateral edges, respectively. Each of the first and second retaining structures overhangs the slot and defines an engagement surface facing the slot, such that during engagement of the workpiece the substantially arcuate engagement surfaces of the feet contact the engagement surfaces of the first and second retaining structures to provide a pivotable engagement. | 02-25-2010 |
20090282677 | COMPRESSOR STATOR CHORD RESTORATION REPAIR METHOD AND APPARATUS - A method for defining an airfoil with a radiused shape edge includes joining a filler material to the airfoil such that the filler material defines excess material that extends beyond an operational condition edge location of the edge of the airfoil, placing the airfoil within a barrel, providing an abrasive finishing media in the barrel with the airfoil, rotating the barrel to produce relative motion between the abrasive finishing media and the airfoil. Contact between the abrasive finishing material and the airfoil facilitates removing the excess material that extended beyond the operational condition edge location of the edge of the airfoil. | 11-19-2009 |