Patents by Inventor Mladen F. Trubelja
Mladen F. Trubelja 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: 11866816Abstract: An apparatus for use in a coating process includes a chamber, a crucible configured to hold a coating material in the chamber, an energy source operable to heat the interior of the chamber, a coating envelope situated with respect to the crucible, and at least one gas manifold located near the coating envelope. The at least one gas manifold is configured to provide a gas screen between the coating envelope and the crucible.Type: GrantFiled: March 18, 2019Date of Patent: January 9, 2024Assignee: RTX CORPORATIONInventors: Joseph A. DePalma, Mladen F. Trubelja, David A. Litton, Dmitri L. Novikov, Sergei F. Burlatsky
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Publication number: 20190211440Abstract: An apparatus for use in a coating process includes a chamber, a crucible configured to hold a coating material in the chamber, an energy source operable to heat the interior of the chamber, a coating envelope situated with respect to the crucible, and at least one gas manifold located near the coating envelope. The at least one gas manifold is configured to provide a gas screen between the coating envelope and the crucible.Type: ApplicationFiled: March 18, 2019Publication date: July 11, 2019Inventors: Joseph A. DePalma, Mladen F. Trubelja, David A. Litton, Dmitri L. Novikov, Sergei F. Burlatsky
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Patent number: 10233533Abstract: A method for use in a coating process includes pre-heating a substrate in the presence of a coating material and shielding the substrate during the pre-heating from premature deposition of the coating material by establishing a gas screen between the substrate and the coating material. An apparatus for use in a coating process includes a chamber, a crucible that is configured to hold a coating material in the chamber, an energy source operable to heat the interior of the chamber, a coating envelope situated with respect to the crucible, and at least one gas manifold located near the coating envelope. The at least one gas manifold is configured to provide a gas screen between the coating envelope and the crucible. A second manifold provides gas during a later coating deposition to compress a vapor plume of the coating material and focus the plume on the substrate to increase deposition rate.Type: GrantFiled: January 7, 2015Date of Patent: March 19, 2019Assignee: UNITED TECHNOLOGIES CORPORATIONInventors: Joseph A. DePalma, Mladen F. Trubelja, David A. Litton, Dmitri L. Novikov, Sergei F. Burlatsky
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Publication number: 20190040525Abstract: An apparatus for use in a physical vapor deposition coating process includes a chamber, a crucible configured to hold a ceramic coating material in the chamber, an energy source operable to heat the interior of the chamber, a fixture for holding at least one substrate in the chamber, an actuator operable to rotate the fixture, and a controller configured to establish a plume of the ceramic coating material in the chamber to deposit the ceramic coating material from the plume onto the at least one substrate and form a ceramic coating thereon, and during the deposition, rotate the at least one substrate at a rotational speed selected with respect to deposition rate of the ceramic coating material onto the at least one substrate.Type: ApplicationFiled: October 11, 2018Publication date: February 7, 2019Inventors: Mladen F. Trubelja, David A. Litton, Joseph A. DePalma, James W. Neal, Michael Maloney, Russell A. Beers, Brian T. Hazel, Glenn A. Cotnoir
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Patent number: 10145006Abstract: A method for use in a physical vapor deposition coating process includes depositing a ceramic coating material from a plume onto at least one substrate to form a ceramic coating thereon, and during the deposition, rotating the at least one substrate at rotational speed selected with respect to deposition rate of the ceramic coating material onto the at least one substrate.Type: GrantFiled: January 8, 2015Date of Patent: December 4, 2018Assignee: UNITED TECHNOLOGIES CORPORATIONInventors: Mladen F. Trubelja, David A. Litton, Joseph A. DePalma, James W. Neal, Michael Maloney, Russell A. Beers, Brian T. Hazel, Glenn A. Cotnoir
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Patent number: 10113226Abstract: A coated article has: a metallic substrate (22); a bondcoat (30); and a thermal barrier coating (TBC) (28). The bondcoat has a first layer (32) and a second layer (34), the first layer having a lower Cr content than the second layer.Type: GrantFiled: March 13, 2014Date of Patent: October 30, 2018Assignee: United Technologies CorporationInventors: Mladen F. Trubelja, Dinesh K. Gupta, Brian S. Tryon, Mark T. Ucasz, Benjamin J. Zimmerman
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Patent number: 9506140Abstract: A coated article has: a metallic substrate (22); a bondcoat (30); and a thermal barrier coating (TBC) (28). The bondcoat has a first layer (32) and a second layer (34), the first layer having a lower Cr content than the second layer.Type: GrantFiled: March 13, 2014Date of Patent: November 29, 2016Assignee: United Technologies CorporationInventors: Mladen F. Trubelja, Dinesh K. Gupta, Brian S. Tryon, Mark T. Ucasz, Benjamin J. Zimmerman
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Publication number: 20160333465Abstract: A method for use in a physical vapor deposition coating process includes depositing a ceramic coating material from a plume onto at least one substrate to form a ceramic coating thereon, and during the deposition, rotating the at least one substrate at rotational speed selected with respect to deposition rate of the ceramic coating material onto the at least one substrate.Type: ApplicationFiled: January 8, 2015Publication date: November 17, 2016Applicant: United Technologies CorporationInventors: Mladen F. Trubelja, David A. Litton, Joseph A. DePalma, James W. Neal, Michael Maloney, Russell A. Beers, Brian T. Hazel, Glenn A. Cotnoir
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Publication number: 20160326628Abstract: A method for use in a coating process includes pre-heating a substrate in the presence of a coating material and shielding the substrate during the pre-heating from premature deposition of the coating material by establishing a gas screen between the substrate and the coating material. An apparatus for use in a coating process includes a chamber, a crucible that is configured to hold a coating material in the chamber, an energy source operable to heat the interior of the chamber, a coating envelope situated with respect to the crucible, and at least one gas manifold located near the coating envelope. The at least one gas manifold is configured to provide a gas screen between the coating envelope and the crucible. A second manifold provides gas during a later coating deposition to compress a vapor plume of the coating material and focus the plume on the substrate to increase deposition rate.Type: ApplicationFiled: January 7, 2015Publication date: November 10, 2016Applicant: United Technologies CorporationInventors: Joseph A. DePalma, Mladen F. Trubelja, David A. Litton, Dmitri L. Novikov, Sergei F. Burlatsky
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Publication number: 20160040281Abstract: A coated article has: a metallic substrate (22); a bondcoat (30); and a thermal barrier coating (TBC) (28). The bondcoat has a first layer (32) and a second layer (34), the first layer having a lower Cr content than the second layer.Type: ApplicationFiled: March 13, 2014Publication date: February 11, 2016Applicant: UNITED TECHNOLOGIES CORPORATIONInventors: Mladen F. Trubelja, Dinesh K. Gupta, Brian S. Tryon, Mark T. Ucasz, Benjamin J. Zimmerman
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Publication number: 20140272456Abstract: A coated article has: a metallic substrate (22); a bondcoat (30); and a thermal barrier coating (TBC) (28). The bondcoat has a first layer (32) and a second layer (34), the first layer having a lower Cr content than the second layer.Type: ApplicationFiled: March 13, 2014Publication date: September 18, 2014Applicant: United Technologies CorporationInventors: Mladen F. Trubelja, Dinesh K. Gupta, Brian S. Tryon, Mark T. Ucasz, Benjamin J. Zimmerman
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Patent number: 7291408Abstract: A ceramic material having particular utility as a thermal insulating or thermal barrier coating on metallic substrates is provided. The ceramic material broadly comprises at least one oxide and the balance comprising a first oxide selected from the group consisting of zirconia, ceria, and hafnia. The at least one oxide has a formula A2O3 where A is selected from the group consisting of La, Pr, Nd, Sm, Eu, Tb, In, Sc, Y, Dy, Ho, Er, Tm, Yb, Lu, and mixtures thereof. The present invention also broadly relates to an article having a metal substrate and a thermal barrier coating as discussed above.Type: GrantFiled: August 12, 2003Date of Patent: November 6, 2007Assignee: United Technologies CorporationInventors: David A. Litton, Nicholas E. Ulion, Mladen F. Trubelja, Michael J. Maloney, Sunil Govinda Warrier
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Patent number: 7226672Abstract: A turbine component has a substrate formed from a ceramic material selected from the group consisting of a monolithic ceramic material and a composite ceramic material and a thermal barrier coating bonded to the substrate. In one embodiment, the ceramic material forming the substrate is selected from the group of silicon nitride and self-reinforced silicon nitride. In another embodiment, the ceramic material forming the substrate is selected from the group consisting of a silicon carbide-silicon carbide material and a carbon-carbon material. At least one bond coat layer may be interposed between the substrate and the thermal barrier coating.Type: GrantFiled: March 17, 2004Date of Patent: June 5, 2007Assignee: United Technologies CorporationInventors: David A. Litton, Nicholas E. Ulion, Mladen F. Trubelja, Michael J. Maloney, Sunil Govinda Warrier
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Publication number: 20040175597Abstract: A turbine component has a substrate formed from a ceramic material selected from the group consisting of a monolithic ceramic material and a composite ceramic material and a thermal barrier coating bonded to the substrate. In one embodiment, the ceramic material forming the substrate is selected from the group of silicon nitride and self-reinforced silicon nitride. In another embodiment, the ceramic material forming the substrate is selected from the group consisting of a silicon carbide-silicon carbide material and a carbon-carbon material. At least one bond coat layer may be interposed between the substrate and the thermal barrier coating.Type: ApplicationFiled: March 17, 2004Publication date: September 9, 2004Inventors: David A. Litton, Nicholas E. Ulion, Mladen F. Trubelja, Michael J. Maloney, Sunil Govinda Warrier
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Patent number: 6730422Abstract: A ceramic material having particular utility as a thermal insulating or thermal barrier coating on metallic substrates is provided. The ceramic material broadly comprises at least one oxide and the balance comprising a first oxide selected from the group consisting of zirconia, ceria, and hafnia. The at least one oxide has a formula A2O3 where A is selected from the group consisting of La, Pr, Nd, Sm, Eu, Th, In, Sc, Y, Dy, Ho, Er, Tm, Yb, Lu, and mixtures thereof. The present invention also broadly relates to an article having a metal substrate and a thermal barrier coating as discussed above.Type: GrantFiled: August 21, 2002Date of Patent: May 4, 2004Assignee: United Technologies CorporationInventors: David A. Litton, Nicholas E. Ulion, Mladen F. Trubelja, Michael J. Maloney, Sunil Govinda Warrier
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Publication number: 20040038086Abstract: A ceramic material having particular utility as a thermal insulating or thermal barrier coating on metallic substrates is provided. The ceramic material broadly comprises at least one lanthanide sesquioxide and the balance comprising a first oxide selected from the group consisting of zirconia, ceria, and hafnia. The lanthanide sesquioxide has a formula A2O3 where A is selected from the group consisting of La, Pr, Nd, Sm, Eu, Tb, In, Sc, Y, Dy, Ho, Er, Tm, Yb, Lu, and mixtures thereof. The present invention also broadly relates to an article having a metal substrate and a thermal barrier coating as discussed above.Type: ApplicationFiled: August 21, 2002Publication date: February 26, 2004Inventors: David A. Litton, Nicholas E. Ulion, Mladen F. Trubelja, Michael J. Maloney, Sunil Govinda Warrier
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Publication number: 20040038085Abstract: A ceramic material having particular utility as a thermal insulating or thermal barrier coating on metallic substrates is provided. The ceramic material broadly comprises at least one oxide and the balance comprising a first oxide selected from the group consisting of zirconia, ceria, and hafnia. The at least one oxide has a formula A2O3 where A is selected from the group consisting of La, Pr, Nd, Sm, Eu, Tb, In, Sc, Y, Dy, Ho, Er, Tm, Yb, Lu, and mixtures thereof. The present invention also broadly relates to an article having a metal substrate and a thermal barrier coating as discussed above.Type: ApplicationFiled: August 12, 2003Publication date: February 26, 2004Inventors: David A. Litton, Nicholas E. Ulion, Mladen F. Trubelja, Michael J. Maloney, Sunil Govinda Warrier
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Publication number: 20030152814Abstract: A superalloy article is disclosed having a thermal barrier coating. The article comprises a superalloy substrate, an adherent alumina layer on the substrate, and a ceramic, thermally insulating layer on the alumina layer. The ceramic layer has an overall thickness and comprises a relatively strain tolerant, columnar grain ceramic on the alumina layer and relatively more thermally insulating ceramic on the columnar grain ceramic. The alumina layer may be formed using an alumina forming layer such as an overlay or aluminide bond coat, or the superalloy may comprise a material that is capable of forming an alumina layer. The ceramic layers may be formed of a stabilized zirconia or other suitable material, and may have the same or different compositions.Type: ApplicationFiled: February 11, 2002Publication date: August 14, 2003Inventors: Dinesh Gupta, David L. Lambert, Mladen F. Trubelja, Michael J. Maloney, Nicholas E. Ulion, David A. Litton