| Patent Number |
Title Of Patent |
Date Issued |
| 7334625 |
Manufacture of casting cores |
February 26, 2008 |
| A method for forming an investment casting core comprises cutting a patterned core precursor from refractory metal-based sheet. The cutting forms recast along the cuts. An oxide is grown on non-recast areas. The recast is substantially chemically removed but substantially leaving the |
| 7293597 |
Non-oxidizable coating |
November 13, 2007 |
| A substrate is coated by applying an essentially pure aluminum first layer to a surface of the substrate. At least a first portion of the first layer is oxidized so as to provide a protective coating of desired properties. The substrate may be a refractory metal-based investment cast |
| 7243700 |
Method for casting core removal |
July 17, 2007 |
| To destructively remove a refractory metal casting core from a cast part the part is exposed to a combination of nitric acid and sulfuric acid. |
| 7207374 |
Non-oxidizable coating |
April 24, 2007 |
| A substrate is coated by applying a first layer atop the substrate and comprising, in major weight part, a non-refractory first metal. A second layer is applied atop the first layer and comprises, in major weight part, a carbide and/or nitride of a second metal. A third layer is appl |
| 7207373 |
Non-oxidizable coating |
April 24, 2007 |
| A substrate is coated by applying an essentially pure aluminum first layer to a surface of the substrate. At least a first portion of the first layer is oxidized so as to provide a protective coating of desired properties. The substrate may be a refractory metal-based investment cast |
| 6887321 |
Corrosion resistant surface treatment for structural adhesive bonding to metal |
May 3, 2005 |
| A metal substrate is anodized in a phosphoric acid anodizing solution. The anodized metal substrate is thereafter contacted with a hexavalent chromium free, trivalent chromium containing acid solution to coat the anodized metal substrate. The coated anodized metal substrate can be ad |
| 5965240 |
Metal/composite |
October 12, 1999 |
| A composite article comprising of a non-metallic composite core, a fluoroelastomer adhesive layer which has a curing temperature substantially similar to the composite core, and a metallic structure which overlays the fluoroelastomer adhesive layer, wherein the composite article can |
| 5876651 |
Method for forming a composite structure |
March 2, 1999 |
| The present invention related to a method for providing a composite structure and the composite structure formed thereby. The method broadly comprises the steps of: providing a core structure formed from a non-metallic composite material in a substantially uncured state; applying a f |
| 5665217 |
Method for abrasive tipping of integrally bladed rotors |
September 9, 1997 |
| The present invention relates to a method and apparatus for forming abrasive surfaces on the tips of a plurality of workpieces such as the tips of gas turbine airfoil blades. The method broadly comprises the steps of providing a mechanical masking device having a plurality of openings |
| 5607561 |
Apparatus for abrasive tipping of integrally bladed rotors |
March 4, 1997 |
| The present invention relates to a method and apparatus for forming abrasive surfaces on the tips of a plurality of workpieces such as the tips of gas turbine airfoil blades. The method broadly comprises the steps of providing a mechanical masking device having a plurality of openings |
| 5486281 |
Method for CBN tipping of HPC integrally bladed rotors |
January 23, 1996 |
| The present invention relates to a method and apparatus for forming abrasive surfaces on the tips of a plurality of workpieces such as the tips of gas turbine airfoil blades. The method broadly comprises the steps of providing a mechanical masking device having a plurality of openings |
| 5476363 |
Method and apparatus for reducing stress on the tips of turbine or compressor blades |
December 19, 1995 |
| A method and apparatus for increasing blade fatigue strength in a turbine engine. The blades in the turbine engine are configured so as to reduce stress at the tip of the blades during operation of the turbine engine, thus increasing blade fatigue strength. This stress reduction helps to |
| 5437724 |
Mask and grit container |
August 1, 1995 |
| The present invention relates to a tool for accurately controlling the location, volume and containment of an abrasive grit material during a plating operation wherein the grit material and a matrix metal are deposited onto a tip portion of at least one workpiece. The tool of the pre |
| 5109589 |
Processes for making metal prototype parts |
May 5, 1992 |
| Processes for making metal prototype parts are described. The key steps of the invention include: making a computer aided design (CAD) file of the prototype part; modifying such file a first time to produce a file of a first mandrel upon which the part will be formed; modifying such file |
| 5074970 |
Method for applying an abrasive layer to titanium alloy compressor airfoils |
December 24, 1991 |
| A method for providing an abrasive layer on the surface of a turbine engine component is described. The method includes application of several layers of nickel; one layer includes abrasive particulates. The layer has good bond strength and has a thin cross section, thereby minimizing any |
