Patents by Inventor Jane Ann Murphy
Jane Ann Murphy has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20080152814Abstract: A method for depositing a platinum-group-containing layer on a substrate includes furnishing the substrate, and preparing a water-base paint containing metallic platinum-group powder, water, and a binder. The method further includes spraying the water-base paint overlying the substrate to form a platinum-group-containing layer, and thereafter heating the platinum-group-containing layer to interdiffuse the platinum-group-containing layer.Type: ApplicationFiled: December 20, 2006Publication date: June 26, 2008Applicant: GENERAL ELECTRIC COMPANYInventors: Michael Howard Rucker, Andrew Jay Skoog, Jane Ann Murphy
-
Patent number: 7368164Abstract: A coating and method for overcoating a TBC on a component used in a high-temperature environment, such as the combustor section of an industrial gas turbine. The coating defines the outermost surface of the component and is formed of at least two layers having different compositions. An inner layer of the coating contains alumina in a first silica-containing matrix material that is free of zinc titanate. An outer layer of the coating contains alumina, a glass material, and zinc titanate in a second silica-containing matrix material. The outer layer of the coating has a surface roughness of not greater than three micrometers Ra and forms the outermost surface of the component. The coating reduces the component temperature by reducing the convective and radiant heat transfer thereto.Type: GrantFiled: June 18, 2004Date of Patent: May 6, 2008Assignee: General Electric CompanyInventors: William Randolph Stowell, Daniel Peter Ivkovich, Timothy Lance Manning, Tara Easter McGovern, Jane Ann Murphy, Thomas Walter Rentz, Mathew Curtis Roling, Raymond Grant Rowe, Andrew Jay Skoog
-
Patent number: 7313909Abstract: A high emissivity (Hi-E) coating for use on the exhaust baffles of HIRSS systems. HIRSS systems were developed to reduce the infrared (IR) signature of helicopter engines. Increasing operating temperatures of helicopter engines have made the HIRSS systems less effective. An infrared coating applied over selected portions of the HIRSS reduces the IR of the system. The Hi-E coating comprises, in weight percent, 30-80% refractory oxide pigment, 5-20% binder, 1-15% potassium oxide, optionally up to about 15% glass-forming material and the balance refractory oxide powder. When applied to provide a surface finish of 1100Ra microinches or coarser, the coated HIRSS has a significantly reduced hemispherical reflectance in the IR frequency range.Type: GrantFiled: October 25, 2004Date of Patent: January 1, 2008Assignee: General Electric CompanyInventors: Andrew Jay Skoog, Jane Ann Murphy, John Michael Jasany, Aaron Dennis Gastrich, Timothy Lance Manning
-
Patent number: 7250192Abstract: A method of applying a heat-rejection coating directly on a substrate of a metallic component is disclosed. The steps include supplying a metallic component, such as of a gas turbine engine, before applying a reflective-coating mixture onto the component, wherein the reflective-coating mixture comprises a metallic pigment and a reflective-coating-mixture carrier, and wherein the step of applying is accomplished by a method selected from the group consisting of air-assisted spraying, airless spraying, brushing, and decal transfer. The component having the reflective-coating mixture thereon is fired to form a reflective coating on the component.Type: GrantFiled: December 3, 2003Date of Patent: July 31, 2007Assignee: General Electric CompanyInventors: Andrew Jay Skoog, Jane Ann Murphy, Bryan Thomas Bojanowski
-
Publication number: 20070134408Abstract: A chemical composition and method for repairing a thermal barrier coating on a component designed for use in a hostile thermal environment, such as turbine, combustor and augmentor components of a gas turbine engine. The method repairs a thermal barrier coating on a component that has suffered localized damage to the thermal barrier coating. After cleaning the surface area of the component exposed by the localized spallation, a paste-like mixture of a ceramic composition comprising ceramic powders and nano-sized ceramic materials in a binder, further including an accelerant, is applied to the surface area of the component, and is optionally smoothed using mechanical means. The composition is then allowed to dry and cure to form a dried coating having polymeric characteristics. Upon subsequent heating, the dried coating reacts to produce a glassy ceramic repair coating.Type: ApplicationFiled: June 29, 2005Publication date: June 14, 2007Applicant: GENERAL ELECTRIC COMPANYInventors: Andrew Jay Skoog, Jane Ann Murphy, William Randolph Stowell, David E. Caldwell
-
Patent number: 7093993Abstract: Apparatus and methods for cleaning and repairing a thermal barrier coating on a component designed for use in a hostile thermal environment, such as turbine, combustor and augmentor components of a gas turbine engine. The apparatus is a handheld tool that includes an applicator and a fluid dispensing unit. The method involves use of the apparatus to clean and repair a damaged coating such as a thermal barrier coating on a coated article. After cleaning the surface area of the component exposed by the localized spallation using a first apparatus, a second apparatus is used to apply and distribute a liquid mixture such as a primer or a coating repair composition the damaged area of the coating. The cleaning and repair methods can be performed while the component remains installed, e.g., in a gas turbine engine.Type: GrantFiled: November 21, 2003Date of Patent: August 22, 2006Assignee: General Electric CompanyInventors: Andrew Jay Skoog, Jane Ann Murphy
-
Patent number: 7090894Abstract: A bond coat composition is provided for applying to the surface of a ceramic composite component between the composite substrate and the thermal barrier coat. The composition includes an alumina powder, a silica-yielding liquid, glass frits, and sufficient solvent to permit mixing of the components and forming a bond coat.Type: GrantFiled: February 10, 2004Date of Patent: August 15, 2006Assignee: General Electric CompanyInventors: Douglas Melton Carper, Andrew Jay Skoog, Jane Ann Murphy
-
Patent number: 6919121Abstract: 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 thermal barrier coating (16) on a component (10) that has suffered localized spallation (20) of the thermal barrier coating (16). After cleaning the surface area (22) of the component (10) exposed by the localized spallation (20), a ceramic paste (24) comprising a ceramic powder in a binder is applied to the surface area (22) of the component (10). The binder is then reacted to yield a ceramic-containing repair coating (26) that covers the surface area of the component and comprises the ceramic powder in a matrix of a material formed when the binder was reacted.Type: GrantFiled: May 23, 2002Date of Patent: July 19, 2005Assignee: General Electric CompanyInventors: William R. Stowell, Robert A. Johnson, Andrew J. Skoog, Joseph Thomas Begovich, Thomas Walter Rentz, Jane Ann Murphy, Ching-Pang Lee, Dainel P. Ivkovich, Jr.
-
Patent number: 6827969Abstract: A chemical composition and method for repairing a thermal barrier coating on a component designed for use in a hostile thermal environment, such as turbine, combustor and augmentor components of a gas turbine engine. The method repairs a thermal barrier coating on a component that has suffered localized damage to the thermal barrier coating. After cleaning the surface area of the component exposed by the localized spallation, a mixture of a ceramic composition comprising a ceramic powder in a binder is applied, preferably by spraying, to the surface area of the component. The binder is then allowed to dry to form a dried coating. Upon subsequent heating, the dried coating reacts to produce a ceramic-containing repair coating, wherein the coating comprises the ceramic powder in a matrix of a material formed when the binder was reacted. The binder is preferably a ceramic precursor material that can be converted immediately to a ceramic or allowed to thermally decompose over time to form a ceramic.Type: GrantFiled: December 12, 2003Date of Patent: December 7, 2004Assignee: General Electric CompanyInventors: Andrew Jay Skoog, Jane Ann Murphy, William Randolph Stowell, Timothy Ray Lattire
-
Publication number: 20040228976Abstract: A method applies a heat-rejection coating directly on a substrate of a ceramic component. The steps include supplying a ceramic component, such as of a gas turbine engine, before applying a reflective-coating mixture onto the component, wherein the reflective-coating mixture comprises a metallic pigment and a reflective-coating-mixture carrier, and wherein the step of applying is accomplished by a method selected from the group consisting of air-assisted spraying, airless spraying, brushing, and decal transfer. The component having the reflective-coating mixture thereon is fired to form a reflective coating on the component.Type: ApplicationFiled: December 3, 2003Publication date: November 18, 2004Applicant: Gerneral Electric CompanyInventors: Andrew Jay Skoog, Jane Ann Murphy, Timothy Ray Lattire
-
Publication number: 20040228977Abstract: A method of applying a heat-rejection coating directly on a substrate of a metallic component is disclosed. The steps include supplying a metallic component, such as of a gas turbine engine, before applying a reflective-coating mixture onto the component, wherein the reflective-coating mixture comprises a metallic pigment and a reflective-coating-mixture carrier, and wherein the step of applying is accomplished by a method selected from the group consisting of air-assisted spraying, airless spraying, brushing, and decal transfer. The component having the reflective-coating mixture thereon is fired to form a reflective coating on the component.Type: ApplicationFiled: December 3, 2003Publication date: November 18, 2004Applicant: General Electric CompanyInventors: Andrew Jay Skoog, Jane Ann Murphy, Bryan Thomas Bojanowski
-
Patent number: 6720034Abstract: A heat-rejection coating is applied to a metallic component of a gas turbine engine, preferably made of a nickel-base superalloy. A component surface is preferably pre-treated, as by polishing the component surface, thereafter pre-oxidizing the component surface, and thereafter applying a ceramic barrier coating onto the component surface. A reflective-coating mixture is air sprayed onto the pre-treated component surface. The reflective-coating mixture includes a metallic pigment, such as platinum, gold, palladium, and alloys thereof, and a reflective-coating-mixture carrier. The component with the reflective-coating mixture sprayed thereon is fired.Type: GrantFiled: April 23, 2002Date of Patent: April 13, 2004Assignee: General Electric CompanyInventors: Andrew Jay Skoog, Jane Ann Murphy, John Frederick Ackerman, Paul Vincent Arszman, Bryan Thomas Bojanowski, Timothy Ray Lattire
-
Publication number: 20040052976Abstract: Non-spherical particles including a major dimension, for example flakes of material, are positioned with the major dimension oriented generally along an article surface in respect to which the particle is disposed. The particles, disposed in a fluid medium, the viscosity of which can be increased to secure the particles in position, are positioned using a force on the particles. The force includes torque force from a magnetic field, force from flow of the fluid medium, the force of gravity, and the force of surface tension alone or in combination with the force of gravity.Type: ApplicationFiled: September 16, 2003Publication date: March 18, 2004Applicant: General Electric CompanyInventors: Matthew B. Buczek, Andrew Jay Skoog, Jane Ann Murphy, Daniel Gustov Backman, Israel S. Jacobs, John Frederick Ackerman
-
Publication number: 20040018301Abstract: A method for the polymerization of metal oxo-hydroxide in solution to form dense contiguous oxide films on small particles suspended in the solution. A standard ethanol-based sol-gel reaction solution is prepared by resulting in a solution containing dissolved metal oxo-hydroxides and phosphates, as well as finely divided suspended metal substrate particles. Intermediate molecular weight alcohols, namely alcohols with three, four, five, six or seven carbon atoms, are added to the reaction solution to increase the boiling point of the reaction. The temperature of the reaction solution is raised to below the boiling point of the solution. Water is added to the reaction solution to initiate the polymerization of the metal oxo-hydroxide. The polymerization reaction, coupled with the phosphates acting a surfactant, coats the metal substrate particles with a dense contiguous coating of metal oxide.Type: ApplicationFiled: July 26, 2002Publication date: January 29, 2004Inventors: John F. Ackerman, Andrew J. Skoog, Matthew B. Buczek, Jane Ann Murphy
-
Patent number: 6663918Abstract: A differential thickness pattern can be induced in a coating that is sprayed on an aircraft engine part using a robotic system. The robotic system includes a spray mechanism with a triggering device to spray the coating on the aircraft engine part and a controller. The controller is used to move the spray mechanism along a predetermined path and to activate and deactivate the triggering device. To obtain the differential thickness pattern, a predetermined profile of the aircraft engine part corresponding to areas of the aircraft engine part requiring a thicker coating is integrated into a control program used by the controller. The controller uses the control program to activate and deactivate the triggering mechanism to limit the spraying of the coating to only those areas of the part in the predetermined profile to obtain a different coating thickness.Type: GrantFiled: May 11, 2001Date of Patent: December 16, 2003Assignee: General Electric CompanyInventors: Timothy Lance Manning, Timothy Ray Lattire, Michael Dwayne Rutter, Andrew Jay Skoog, Jane Ann Murphy
-
Publication number: 20030198750Abstract: A heat-rejection coating is applied to a metallic component of a gas turbine engine, preferably made of a nickel-base superalloy. A component surface is preferably pre-treated, as by polishing the component surface, thereafter pre-oxidizing the component surface, and thereafter applying a ceramic barrier coating onto the component surface. A reflective-coating mixture is air sprayed onto the pre-treated component surface. The reflective-coating mixture includes a metallic pigment, such as platinum, gold, palladium, and alloys thereof, and a reflective-coating-mixture carrier. The component with the reflective-coating mixture sprayed thereon is fired.Type: ApplicationFiled: April 23, 2002Publication date: October 23, 2003Inventors: Andrew Jay Skoog, Jane Ann Murphy, John Frederick Ackerman, Paul Vincent Arszman, Bryan Thomas Bojanowski, Timothy Ray Lattire
-
Publication number: 20020182362Abstract: 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 thermal barrier coating (16) on a component (10) that has suffered localized spallation (20) of the thermal barrier coating (16). After cleaning the surface area (22) of the component (10) exposed by the localized spallation (20), a ceramic paste (24) comprising a ceramic powder in a binder is applied to the surface area (22) of the component (10). The binder is then reacted to yield a ceramic-containing repair coating (26) that covers the surface area of the component and comprises the ceramic powder in a matrix of a material formed when the binder was reacted.Type: ApplicationFiled: May 23, 2002Publication date: December 5, 2002Inventors: William R. Stowell, Robert A. Johnson, Andrew J. Skoog, Joseph Thomas Begovich, Thomas Walter Rentz, Jane Ann Murphy, Ching-Pang Lee, Dainel P. Ivkovich
-
Publication number: 20020168479Abstract: A differential thickness pattern can be induced in a coating that is sprayed on an aircraft engine part using a robotic system. The robotic system includes a spray mechanism with a triggering device to spray the coating on the aircraft engine part and a controller. The controller is used to move the spray mechanism along a predetermined path and to activate and deactivate the triggering device. To obtain the differential thickness pattern, a predetermined profile of the aircraft engine part corresponding to areas of the aircraft engine part requiring a thicker coating is integrated into a control program used by the controller. The controller uses the control program to activate and deactivate the triggering mechanism to limit the spraying of the coating to only those areas of the part in the predetermined profile to obtain a different coating thickness.Type: ApplicationFiled: May 11, 2001Publication date: November 14, 2002Inventors: Timothy Lance Manning, Timothy Ray Lattire, Michael Dwayne Rutter, Andrew Jay Skoog, Jane Ann Murphy
-
Patent number: 6465090Abstract: A protective coating and coating method for protecting a thermal barrier coating (TBC) on a component, such as a component of a gas turbine engine. The protective coating comprises alumina particles in a silica-containing matrix, and may be substantially homogeneous or formed of multiple layers having different compositions. The composition and relative amounts of alumina and matrix material in the protective coating enable the coating to react with molten compounds containing calcia, magnesia, alumina and/or silica (CMAS), forming a compound with a melting temperature that is significantly higher than CMAS. As such, infiltration of molten CMAS into the TBC is significantly reduced or entirely avoided.Type: GrantFiled: October 17, 2000Date of Patent: October 15, 2002Assignee: General Electric CompanyInventors: William R. Stowell, Joseph Thomas Begovich, Thomas Walter Rentz, Glen A. MacMillan, John Greene, Jane Ann Murphy, Dainel P. Ivkovich, Jr., Andrew J. Skoog
-
Patent number: 6413578Abstract: A method of repairing a thermal barrier coating on a component 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 thermal barrier coating on a component that has suffered localized spallation of the thermal barrier coating. After cleaning the surface area of the component exposed by the localized spallation, a ceramic paste comprising a ceramic powder in a binder is applied to the surface area of the component. The binder is then reacted to yield a ceramic-containing repair coating that covers the surface area of the component and comprises the ceramic powder in a matrix of a material formed when the binder was reacted. The binder is preferably a ceramic precursor material that can be converted immediately to a ceramic or allowed to thermally decompose over time to form a ceramic, such that the repair coating has a ceramic matrix.Type: GrantFiled: October 12, 2000Date of Patent: July 2, 2002Assignee: General Electric CompanyInventors: William R. Stowell, Robert A. Johnson, Andrew J. Skoog, Joseph Thomas Begovich, Thomas Walter Rentz, Jane Ann Murphy, Ching-Pang Lee, Dainel P. Ivkovich, Jr.