Patents by Inventor John G. Smeggil
John G. Smeggil 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).
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Patent number: 9611181Abstract: A process for applying an oxidation resistant coating to an article includes the steps of mixing at least about 10% by volume to up to about 99% by volume of a slurry at least one silica based material having a viscosity of about 1×102 poise to about 1×107 poise at a temperature of about 1,292° F. (700° C.) to about 3,272° F. (1,800° C.) at least about 1% by volume to up to about 90% by volume of the slurry at least one oxygen scavenger, and a liquid medium to form the slurry; coating an article with the slurry to form a slurry coated article; and heat treating under an inert atmosphere the slurry coated article to form an article having at least one oxidation resistant coating layer containing the at least one oxygen scavenger.Type: GrantFiled: April 18, 2011Date of Patent: April 4, 2017Assignee: United Technologies CorporationInventors: Xia Tang, Tania Bhatia Kashyap, David C. Jarmon, Wayde R. Schmidt, Harry E. Eaton, Jr., John G. Smeggil
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Patent number: 9221720Abstract: A method for depositing a protective coating on a complex shaped substrate includes the steps of: (1) dipping a complex shaped substrate into a slurry to form a base coat thereon, the slurry comprising an aqueous solution, at least one refractory metal oxide, and at least one transient fluid additive present in an amount of about 0.1 percent to 10 percent by weight of the slurry; (2) curing the dipped substrate; (3) dipping the substrate into a precursor solution to form a top barrier coat thereon; and (4) heat treating the dipped, cured substrate to form a protective coating.Type: GrantFiled: March 1, 2006Date of Patent: December 29, 2015Assignee: UNITED TECHNOLOGIES CORPORATIONInventors: Sonia Tulyani, Tania Bhatia, John G. Smeggil
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Patent number: 8529999Abstract: A process of coating an article includes the steps of (1) forming a layer of a ceramic based compound on an article; (2) providing a solution containing a metal as a particulate having a diameter of about 10 nanometers to about 1000 nanometers and present in an amount of about 25 percent to about 50 percent by volume of the solution; (3) contacting the ceramic based compound layer with the solution; (4) drying the article; and (5) optionally repeating steps (3) and (4).Type: GrantFiled: August 24, 2009Date of Patent: September 10, 2013Assignee: United Technologies CorporationInventors: Michael J. Maloney, David A. Litton, Kevin W. Schlichting, Melvin Freling, John G. Smeggil, David B. Snow
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Patent number: 8343587Abstract: A method for providing a component with protection against sand related distress comprises the steps of: providing a substrate; and forming a thermal barrier coating system by depositing at least one layer of a first material selected from the group consisting of a zirconate, a hafnate, a titanate, and mixtures thereof, which first material has been mixed with at least one oxide so that each layer contains from about 25 to 99 wt% of at least one oxide.Type: GrantFiled: December 18, 2009Date of Patent: January 1, 2013Assignee: United Technologies CorporationInventors: David A. Litton, Kevin W. Schlichting, Melvin Freling, John G. Smeggil, David B. Snow, Michael J. Maloney
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Method for forming a yttria-stabilized zirconia coating with a molten silicate resistant outer layer
Patent number: 8080283Abstract: A method for providing a component with protection against sand related distress includes the steps of: providing a substrate; depositing a layer of a yttria-stabilized zirconia material on the substrate; and forming a molten silicate resistant outer layer over the yttria-stabilized zirconia material.Type: GrantFiled: April 15, 2010Date of Patent: December 20, 2011Assignee: United Technologies CorporationInventors: Kevin W. Schlichting, Michael J. Maloney, David A. Litton, Melvin Freling, John G. Smeggil, David B. Snow -
Publication number: 20110200759Abstract: A process for applying an oxidation resistant coating to an article includes the steps of mixing at least about 10% by volume to up to about 99% by volume of a slurry at least one silica based material having a viscosity of about 1×102 poise to about 1×107 poise at a temperature of about 1,292° F. (700° C.) to about 3,272° F. (1,800° C.) at least about 1% by volume to up to about 90% by volume of the slurry at least one oxygen scavenger, and a liquid medium to form the slurry; coating an article with the slurry to form a slurry coated article; and heat treating under an inert atmosphere the slurry coated article to form an article having at least one oxidation resistant coating layer containing the at least one oxygen scavenger.Type: ApplicationFiled: April 18, 2011Publication date: August 18, 2011Applicant: UNITED TECHNOLOGIES CORPORATIONInventors: Xia Tang, Tania Bhatia Kashyap, David C. Jarmon, Wayde R. Schmidt, Harry E. Eaton, John G. Smeggil
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Patent number: 7972657Abstract: A thermal barrier coating system for use on a turbine engine component which reduces sand related distress is provided. The coating system comprises at least one first layer of a stabilized material selected from the group consisting of zirconia, hafnia, and titania and at least one second layer containing at least one of oxyapatite and garnet. Where the coating system comprises multiple first layers and multiple second layers, the layers are formed or deposited in an alternating manner.Type: GrantFiled: February 1, 2010Date of Patent: July 5, 2011Assignee: United Technologies CorporationInventors: Kevin W. Schlichting, David A. Litton, Michael J. Maloney, Melvin Freling, John G. Smeggil, David B. Snow
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Patent number: 7951459Abstract: A process for applying an oxidation resistant coating to an article includes the steps of mixing at least about 10% by volume to up to about 99% by volume of a slurry at least one silica based material having a viscosity of about 1×102 poise to about 1×107 poise at a temperature of about 1,292° F. (700° C.) to about 3,272° F. (1,800° C.) at least about 1% by volume to up to about 90% by volume of the slurry at least one oxygen scavenger, and a liquid medium to form the slurry; coating an article with the slurry to form a slurry coated article; and heat treating under an inert atmosphere the slurry coated article to form an article having at least one oxidation resistant coating layer containing the at least one oxygen scavenger.Type: GrantFiled: November 21, 2006Date of Patent: May 31, 2011Assignee: United Technologies CorporationInventors: Xia Tang, Tania Bhatia, David C. Jarmon, Wayde R. Schmidt, Harry E. Eaton, John G. Smeggil
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Publication number: 20110086179Abstract: A turbine engine component has a substrate, a thermal barrier coating deposited onto the substrate, and a sealing layer of ceramic material on an outer surface of the thermal barrier coating for limiting molten sand penetration.Type: ApplicationFiled: December 17, 2010Publication date: April 14, 2011Applicant: UNITED TECHNOLOGIES CORPORATIONInventors: Kevin W. Schlichting, Michael J. Maloney, David A. Litton, Melvin Freling, John G. Smeggil, David Snow
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Patent number: 7875370Abstract: A turbine engine component has a substrate, a thermal barrier coating deposited onto the substrate, and a sealing layer of ceramic material on an outer surface of the thermal barrier coating for limiting molten sand penetration.Type: GrantFiled: August 18, 2006Date of Patent: January 25, 2011Assignee: United Technologies CorporationInventors: Kevin W. Schlichting, Michael J. Maloney, David A. Litton, Melvin Freling, John G. Smeggil, David Snow
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Patent number: 7785722Abstract: A turbine engine component is provided which has a substrate and a thermal barrier coating applied over the substrate. The thermal barrier coating comprises alternating layers of yttria-stabilized zirconia and a molten silicate resistant material. The molten silicate resistant outer layer may be formed from at least one oxide of a material selected from the group consisting of lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, scandium, indium, zirconium, hafnium, and titanium or may be formed from a gadolinia-stabilized zirconia. If desired, a metallic bond coat may be present between the substrate and the thermal barrier coating system. A method for forming the thermal barrier coating system of the present invention is described.Type: GrantFiled: January 20, 2006Date of Patent: August 31, 2010Assignee: United Technologies CorporationInventors: Melvin Freling, Kevin W. Schlichting, Michael J. Maloney, David A. Litton, John G. Smeggil, David B. Snow
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Patent number: 7776459Abstract: A turbine engine component has a substrate and a thermal barrier coating deposited onto the substrate. The thermal barrier coating comprises a ceramic material having a sodium containing compound incorporated therein. The sodium containing compound is present in a concentration so that when molten sand reacts with the coating, sodium silicate is formed as the by product.Type: GrantFiled: August 18, 2006Date of Patent: August 17, 2010Assignee: United Technologies CorporationInventors: Kevin W. Schlichting, Michael J. Maloney, David A. Litton, Melvin Freling, John G. Smeggil, David Snow
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Publication number: 20100196605Abstract: A turbine engine component is provided which has a substrate, a yttria-stabilized zirconia coating applied over the substrate, and a molten silicate resistant outer layer. The molten silicate resistant outer layer is formed from gadolinia or gadolinia-stabilized zirconia. A method for forming the coating system of the present invention is described.Type: ApplicationFiled: April 15, 2010Publication date: August 5, 2010Applicant: UNITED TECHNOLOGIES CORPORATIONInventors: Kevin W. Schlichting, Michael J. Maloney, David A. Litton, Melvin Freling, John G. Smeggil, David B. Snow
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Patent number: 7736759Abstract: A turbine engine component is provided which has a substrate, a yttria-stabilized zirconia coating applied over the substrate, and a molten silicate resistant outer layer. The molten silicate resistant outer layer is formed from gadolinia or gadolinia-stabilized zirconia. A method for forming the coating system of the present invention is described.Type: GrantFiled: January 20, 2006Date of Patent: June 15, 2010Assignee: United Technologies CorporationInventors: Kevin W. Schlichting, Michael J. Maloney, David A. Litton, Melvin Freling, John G. Smeggil, David B. Snow
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Publication number: 20100136241Abstract: A thermal barrier coating system for use on a turbine engine component which reduces sand related distress is provided. The coating system comprises at least one first layer of a stabilized material selected from the group consisting of zirconia, hafnia, and titania and at least one second layer containing at least one of oxyapatite and garnet. Where the coating system comprises multiple first layers and multiple second layers, the layers are formed or deposited in an alternating manner.Type: ApplicationFiled: February 1, 2010Publication date: June 3, 2010Applicant: UNITED TECHNOLOGIES CORPORATIONInventors: Kevin W. Schlichting, David A. Litton, Michael J. Maloney, Melvin Freling, John G. Smeggil, David B. Snow
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Patent number: 7722959Abstract: A thermal barrier coating system for use on a turbine engine component which reduces sand related distress is provided. The coating system comprises at least one first layer of a stabilized material selected from the group consisting of zirconia, hafnia, and titania and at least one second layer containing at least one of oxyapatite and garnet. Where the coating system comprises multiple first layers and multiple second layers, the layers are formed or deposited in an alternating manner.Type: GrantFiled: September 6, 2006Date of Patent: May 25, 2010Assignee: United Technologies CorporationInventors: Kevin W. Schlichting, David A. Litton, Michael J. Maloney, Melvin Freling, John G. Smeggil, David B. Snow
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Publication number: 20100119718Abstract: A method for depositing a protective coating on a complex shaped substrate includes the steps of: (1) dipping a complex shaped substrate into a slurry to form a base coat thereon, the slurry comprising an aqueous solution, at least one refractory metal oxide, and at least one transient fluid additive present in an amount of about 0.1 percent to 10 percent by weight of the slurry; (2) curing the dipped substrate; (3) dipping the substrate into a precursor solution to form a top barrier coat thereon; and (4) heat treating the dipped, cured substrate to form a protective coating.Type: ApplicationFiled: March 1, 2006Publication date: May 13, 2010Inventors: Sonia Tulyani, Tania Bhatia, John G. Smeggil
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Publication number: 20100098865Abstract: A turbine engine component is provided which has a substrate and a thermal barrier coating applied over the substrate. The thermal barrier coating comprises at least one layer of a first material selected from the group consisting of a zirconate, a hafnate, a titanate, and mixtures thereof, which first material has been mixed with, and contains, from about 25 to 99 wt % of at least one oxide. The at least one oxide comprises at least one oxide of a material selected from the group consisting of lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, scandium, indium, and yttrium. If desired, a metallic bond coat may be present between the substrate and the thermal barrier coating system. A method for forming the thermal barrier coating system of the present invention is described.Type: ApplicationFiled: December 18, 2009Publication date: April 22, 2010Applicant: UNITED TECHNOLOGIES CORPORATIONInventors: David A. Litton, Kevin W. Schlichting, Melvin Freling, John G. Smeggil, David B. Snow, Michael J. Maloney
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Publication number: 20100047075Abstract: A process of coating an article includes the steps of (1) applying a ceramic compound to at least one surface of an article to form a layer of ceramic compound; (2) applying at least one inert compound upon the ceramic compound layer to form a protective layer, wherein the at least one inert compound is composed of a first inert compound having a cubic crystalline structure of formula (I) A3B2X3O12, or a second inert compound comprising a hexagonal crystalline structure of formula (II) A4B6X6O26, or a mixture of the first inert compound and the second inert compound; (3) optionally drying the coated article; (4) optionally repeating steps (2) and (3); and (5) heat treating the coated article.Type: ApplicationFiled: November 2, 2009Publication date: February 25, 2010Applicant: UNITED TECHNOLOGIES CORPORATIONInventors: Kevin W. Schlichting, David A. Litton, Michael J. Maloney, Melvin Freling, John G. Smeggil, David B. Snow
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Patent number: 7662489Abstract: A turbine engine component is provided which has a substrate and a thermal barrier coating applied over the substrate. The thermal barrier coating comprises at least one layer of a first material selected from the group consisting of a zirconate, a hafnate, a titanate, and mixtures thereof, which first material has been mixed with, and contains, from about 25 to 99 wt % of at least one oxide. The at least one oxide comprises at least one oxide of a material selected from the group consisting of lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, scandium, indium, and yttrium. If desired, a metallic bond coat may be present between the substrate and the thermal barrier coating system. A method for forming the thermal barrier coating system of the present invention is described.Type: GrantFiled: January 20, 2006Date of Patent: February 16, 2010Assignee: United Technologies CorporationInventors: David A. Litton, Kevin W. Schlichting, Melvin Freling, John G. Smeggil, David B. Snow, Michael J. Maloney