Patents by Inventor Milivoj Konstantin Brun
Milivoj Konstantin Brun 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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Publication number: 20190092699Abstract: The present approach relates to the fabrication of a composite material via a multi-step heating process. In one heating stage an internal region of a preform is heated by application of electro-magnetic radiation. In another heating stage, a region near the surface of the preform is heated from the exterior inward.Type: ApplicationFiled: September 25, 2017Publication date: March 28, 2019Inventors: Krishan Lal Luthra, Julin Wan, Joseph John Shiang, Milivoj Konstantin Brun
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Patent number: 10093810Abstract: An article includes a substrate and a coating provided on a surface of the substrate. The coating includes at least one metal silicide layer consisting essentially of MoSi2 or WSi2 or (Mo, W)Si2 or a platinum group metal silicide and at least one layer consisting essentially of Si3N4.Type: GrantFiled: March 15, 2013Date of Patent: October 9, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Julin Wan, Milivoj Konstantin Brun, Peter Joel Meschter, Reza Sarrafi-Nour, Don Mark Lipkin
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Publication number: 20160009602Abstract: The disclosure relates generally to a method for reducing the thermal expansion/shrinkage behavior between fiber reinforced plies and monolithic matrix plies, and reducing the macroscopic defects that occur during process of making a ceramic matrix composite article.Type: ApplicationFiled: March 8, 2013Publication date: January 14, 2016Inventors: Milivoj Konstantin BRUN, Gregory Scot CORMAN
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Publication number: 20140272344Abstract: An article includes a substrate and a coating provided on a surface of the substrate. The coating includes at least one metal silicide layer consisting essentially of MoSi2 or WSi2 or (Mo, W)Si2 or a platinum group metal silicide and at least one layer consisting essentially of Si3N4.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Julin Wan, Milivoj Konstantin Brun, Peter Joel Meschter, Reza Sarrafi-Nour, Don Mark Lipkin
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Publication number: 20130234374Abstract: Disclosed herein is a spinel article. The article includes a spinel material, wherein the spinel material has a monomodal grain size distribution with average grain sizes of less than or equal to about 15 micrometers, and a biaxial flexural strength of greater than or equal to about 300 megapascals when measured by a ring-on-ring flexural test as per ASTM Standard C1499-08. Disclosed herein too is a method for manufacturing a spinel article, including calcining a spinel powder; milling the powder in a milling medium; granulating the powder; screening the powder to a mesh size of about 40 to about 200 mesh; pressing the powder to form an article; burning out organics from the article; sintering the article; and hot isostatically pressing the article.Type: ApplicationFiled: June 26, 2012Publication date: September 12, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Milivoj Konstantin Brun, Anteneh Kebbede, Sean Michael Sweeney, Timothy James Yosenick
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Patent number: 8529827Abstract: Disclosed herein is a spinel article. The article includes a spinel material, wherein the spinel material has a monomodal grain size distribution with average grain sizes of less than or equal to about 15 micrometers, and a biaxial flexural strength of greater than or equal to about 300 megapascals when measured by a ring-on-ring flexural test as per ASTM Standard C1499-08. Disclosed herein too is a method for manufacturing a spinel article, including calcining a spinel powder; milling the powder in a milling medium; granulating the powder; screening the powder to a mesh size of about 40 to about 200 mesh; pressing the powder to form an article; burning out organics from the article; sintering the article; and hot isostatically pressing the article.Type: GrantFiled: June 26, 2012Date of Patent: September 10, 2013Assignee: General Electric CompanyInventors: Milivoj Konstantin Brun, Anteneh Kebbede, Sean Michael Sweeney, Timothy James Yosenick
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Patent number: 8268286Abstract: Disclosed herein is a spinel article. The article comprises a spinel material, wherein the spinel material has a monomodal grain size distribution with average grain sizes of less than or equal to about 15 micrometers, and a biaxial flexural strength of greater than or equal to about 300 megapascals when measured by a ring-on-ring flexural test as per ASTM Standard C1499-08. Disclosed herein too is a spinel article manufactured by a method comprising calcining a spinel powder; milling the powder in a milling medium; granulating the powder; screening the powder to a mesh size of about 40 to about 200 mesh; pressing the powder to form an article; burning out organics from the article; sintering the article; and hot isostatically pressing the article.Type: GrantFiled: November 6, 2008Date of Patent: September 18, 2012Assignee: General Electric CompanyInventors: Milivoj Konstantin Brun, Anteneh Kebbede, Sean Michael Sweeney, Timothy James Yosenick
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Patent number: 8047382Abstract: A membrane structure is provided. The membrane structure includes a first layer having a plurality of interconnected pores; and a second layer disposed on the first layer. The second layer has a plurality of unconnected pores. Each of the unconnected pores is in fluid communication with at least one of the interconnected pores of the first layer. A method of making a membrane structure is provided. The method includes the steps of providing a first layer having a plurality of interconnected pores; and disposing a second layer on the first layer. Disposing a second layer includes depositing a conducting layer on the first layer; and anodizing the conducting layer to convert the conducting layer into a porous layer.Type: GrantFiled: March 2, 2010Date of Patent: November 1, 2011Assignee: General Electric CompanyInventors: Vidya Ramaswamy, James Anthony Ruud, Melissa Suzanne Sander, Anthony Yu-Chung Ku, Mohan Manoharan, Milivoj Konstantin Brun, Seth Thomas Taylor
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Patent number: 8043720Abstract: A CMC article and process for producing the article to have a layer on its surface that protects a reinforcement material within the article from damage. The method entails providing a body containing a ceramic reinforcement material in a matrix material that contains a precursor of a ceramic matrix material. A fraction of the reinforcement material is present and possibly exposed at a surface of the body. The body surface is then provided with a surface layer formed of a slurry containing a particulate material but lacking the reinforcement material of the body. The body and surface layer are heated to form the article by converting the precursor within the body to form the ceramic matrix material in which the reinforcement material is contained, and by converting the surface layer to form the protective layer that covers any fraction of the reinforcement material exposed at the body surface.Type: GrantFiled: April 8, 2009Date of Patent: October 25, 2011Assignee: General Electric CompanyInventors: Gregory Scot Corman, Henry Charles McGuigan, Milivoj Konstantin Brun
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Publication number: 20110171399Abstract: A process and apparatus for continuously depositing a coating on a fibrous material. The process is a chemical vapor deposition process that includes causing multiple strands of a fibrous material to continuously travel through a coating zone within an enclosed chamber defined by a housing so that portions of the strands contact a reactant gas as the portions travel through the chamber, directly heating the portions of the strands without physically contacting the strands and without directly heating the housing, and depositing a coating material on the strands as a result of the reactant gas contacting the portions of the strands and decomposing to form a coating of the coating material. Heating of the strands can be achieved by capacitive coupling, inductive coupling, microwave radiation, and radiant heating.Type: ApplicationFiled: January 8, 2010Publication date: July 14, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Milivoj Konstantin Brun, Krishan Lal Luthra, Timothy John Sommerer, Joseph Darryl Michael, William Paul Minnear
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Patent number: 7978402Abstract: Articles transparent to infrared radiation and resistant to impact and wear are provided. The article comprises a substrate and a composite coating disposed over the substrate and extending from an interface with the substrate to an external surface. The composite coating comprises a first phase and a second phase. The second phase has a higher resistance to erosive wear than the first phase. The coating comprises a compositional gradient proceeding from a first composition at the interface of the coating with the substrate to a second composition at the external surface, the first composition comprising a higher concentration of the first phase than that of the second composition.Type: GrantFiled: June 28, 2007Date of Patent: July 12, 2011Assignee: General Electric CompanyInventors: Sean Michael Sweeney, Timothy James Yosenick, Dalong Zhong, Milivoj Konstantin Brun, Sergio Paulo Martins Loureiro, Venkat Subramaniam Venkataramani, Mohan Manoharan
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Publication number: 20100155252Abstract: A membrane structure is provided. The membrane structure includes a first layer having a plurality of interconnected pores; and a second layer disposed on the first layer. The second layer has a plurality of unconnected pores. Each of the unconnected pores is in fluid communication with at least one of the interconnected pores of the first layer. A method of making a membrane structure is provided. The method includes the steps of providing a first layer having a plurality of interconnected pores; and disposing a second layer on the first layer. Disposing a second layer includes depositing a conducting layer on the first layer; and anodizing the conducting layer to convert the conducting layer into a porous layer.Type: ApplicationFiled: March 2, 2010Publication date: June 24, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Vidya Ramaswamy, James Anthony Ruud, Melissa Suzanne Sander, Anthony Yu-Chung Ku, Mohan Manoharan, Milivoj Konstantin Brun, Seth Thomas Taylor
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Patent number: 7717271Abstract: A membrane structure is provided. The membrane structure includes a first layer having a plurality of interconnected pores; and a second layer disposed on the first layer. The second layer has a plurality of unconnected pores. Each of the unconnected pores is in fluid communication with at least one of the interconnected pores of the first layer. A method of making a membrane structure is provided. The method includes the steps of providing a first layer having a plurality of interconnected pores; and disposing a second layer on the first layer. Disposing a second layer includes depositing a conducting layer on the first layer; and anodizing the conducting layer to convert the conducting layer into a porous layer.Type: GrantFiled: December 7, 2005Date of Patent: May 18, 2010Assignee: General Electric CompanyInventors: Vidya Ramaswamy, James Anthony Ruud, Melissa Suzanne Sander, Anthony Yu-Chung Ku, Mohan Manoharan, Milivoj Konstantin Brun, Seth Thomas Taylor
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Publication number: 20100111803Abstract: Disclosed herein is a spinel article. The article comprises a spinel material, wherein the spinel material has a monomodal grain size distribution with average grain sizes of less than or equal to about 15 micrometers, and a biaxial flexural strength of greater than or equal to about 300 megapascals when measured by a ring-on-ring flexural test as per ASTM Standard C1499-08. Disclosed herein too is a spinel article manufactured by a method comprising calcining a spinel powder; milling the powder in a milling medium; granulating the powder; screening the powder to a mesh size of about 40 to about 200 mesh; pressing the powder to form an article; burning out organics from the article; sintering the article; and hot isostatically pressing the article.Type: ApplicationFiled: November 6, 2008Publication date: May 6, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Milivoj Konstantin Brun, Anteneh Kebbede, Sean Michael Sweeney, Timothy James Yosenick
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Patent number: 7708851Abstract: A CMC article and process for producing the article to have a layer on its surface that protects a reinforcement material within the article from damage. The method entails providing a body containing a ceramic reinforcement material in a matrix material that contains a precursor of a ceramic matrix material. A fraction of the reinforcement material is present and possibly exposed at a surface of the body. The body surface is then provided with a surface layer formed of a slurry containing a particulate material but lacking the reinforcement material of the body. The body and surface layer are heated to form the article by converting the precursor within the body to form the ceramic matrix material in which the reinforcement material is contained, and by converting the surface layer to form the protective layer that covers any fraction of the reinforcement material exposed at the body surface.Type: GrantFiled: October 25, 2005Date of Patent: May 4, 2010Assignee: General Electric CompanyInventors: Gregory Scot Corman, Henry Charles McGuigan, Milivoj Konstantin Brun
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Publication number: 20100096066Abstract: A membrane structure is provided. A membrane structure has a top surface and a bottom surface. The membrane structure includes a plurality of sintered layers including an inner layer disposed between two outer layers. The membrane structure further includes a nonmonotonic gradient in pore size extending between the top surface and the bottom surface. A method of making a membrane structure is provided. The method includes the steps of providing at least one inner layer; providing a plurality of outer layers; and laminating the inner layer and the outer layers to obtain a membrane structure.Type: ApplicationFiled: December 21, 2009Publication date: April 22, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Vidya Ramaswamy, Milivoj Konstantin Brun, Sergio Paulo Martins Loureiro, Anthony Yu-Chung Ku, Mohan Manoharan
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Publication number: 20100027105Abstract: Articles transparent to infrared radiation and resistant to impact and wear are provided. In one embodiment the article comprises a substrate and a composite coating disposed over the substrate and extending from an interface with the substrate to an external surface. The coating and the substrate are capable of transmitting infrared radiation. The composite coating comprises a first phase and a second phase, where the second phase has a higher resistance to erosive wear than the first phase. The coating comprises a compositional gradient proceeding from a first composition at the interface of the coating with the substrate to a second composition at the external surface, the first composition comprising a higher concentration of the first phase than that of the second composition.Type: ApplicationFiled: June 28, 2007Publication date: February 4, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Sean Michael Sweeney, Timothy James Yosenick, Dalong Zhong, Milivoj Konstantin Brun, Sergio Paulo Martins Loureiro, Venkat Subramaniam Venkataramani, Mohan Manoharan
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Publication number: 20090214845Abstract: A CMC article and process for producing the article to have a layer on its surface that protects a reinforcement material within the article from damage. The method entails providing a body containing a ceramic reinforcement material in a matrix material that contains a precursor of a ceramic matrix material. A fraction of the reinforcement material is present and possibly exposed at a surface of the body. The body surface is then provided with a surface layer formed of a slurry containing a particulate material but lacking the reinforcement material of the body. The body and surface layer are heated to form the article by converting the precursor within the body to form the ceramic matrix material in which the reinforcement material is contained, and by converting the surface layer to form the protective layer that covers any fraction of the reinforcement material exposed at the body surface.Type: ApplicationFiled: April 8, 2009Publication date: August 27, 2009Applicant: GENERAL ELECTRIC COMPANYInventors: Gregory Scot Corman, Henry Charles McGuigan, Milivoj Konstantin Brun
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Patent number: 7381445Abstract: A method of coating a ceramic matrix composite fiber is disclosed. The method includes passing the composite fiber through a reaction zone along a path substantially parallel to a longitudinal axis of the reaction zone. It also includes passing a flow of a fiber coating reactant through the reaction zone. Further, the method includes disrupting a portion of the flow of the fiber coating reactant from a path substantially parallel to a fiber path to create a mixing flow adjacent the composite fiber.Type: GrantFiled: July 31, 2003Date of Patent: June 3, 2008Assignee: General Electric CompanyInventor: Milivoj Konstantin Brun
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Publication number: 20070099527Abstract: In a method of coating a CMC fiber, a multiplicity of fiber tows aligned as a ribbon are simultaneously passed through a reactor and a flow of fiber coating reactant is passed though the reactor to coat the tow fibers. A coating system comprises a reactor chamber to accommodate a multiplicity of fiber tows passing along a path substantially parallel to a longitudinal axis of the chamber and a flow of fiber coating reactant and an aligning structure at an end of the chamber to maintain the multiplicity of fiber tows in a narrow, elongated ribbon configuration. An article comprises a multiplicity of fiber tows aligned in a longitudinal planar array in the form of a ribbon.Type: ApplicationFiled: November 1, 2005Publication date: May 3, 2007Applicant: General Electric CompanyInventors: Milivoj Konstantin Brun, Krishan Lal Luthra, Henry Charles McGuigan, Gregory Scot Corman