Patents by Inventor Anteneh Kebbede
Anteneh Kebbede 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).
-
Patent number: 10030305Abstract: A method can include applying a mask to a CMC structure, and subjecting the structure having an applied mask to a process for repair. In one embodiment, the applying a mask to a CMC structure can include applying a mask to a feature of a CMC structure.Type: GrantFiled: November 19, 2015Date of Patent: July 24, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Jared Hogg Weaver, Gregory Scot Corman, Anteneh Kebbede, Daniel Gene Dunn, Jerome Geoffrey Magnant
-
Patent number: 9985295Abstract: A solid oxide fuel cell is disclosed. The fuel cell includes a porous anode, formed of finely-dispersed nickel/stabilized-zirconia powder particles. The particles have an average diameter of less than about 300 nanometers. They are also characterized by a tri-phase length of greater than about 50 ?m/?m3. A solid oxide fuel cell stack is also described, along with a method of forming an anode for a solid oxide fuel cell. The method includes the step of using a spray-agglomerated, nickel oxide/stabilized-zirconia powder to form the anode.Type: GrantFiled: September 26, 2005Date of Patent: May 29, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Bastiaan Arie Korevaar, Yuk-Chiu Lau, Anteneh Kebbede, Harish Radhakrishna Acharya, Badri Narayan Ramamurthi, Gregory John Parker
-
Publication number: 20170145560Abstract: A method can include applying a mask to a CMC structure, and subjecting the structure having an applied mask to a process for repair. In one embodiment, the applying a mask to a CMC structure can include applying a mask to a feature of a CMC structure.Type: ApplicationFiled: November 19, 2015Publication date: May 25, 2017Applicant: GENERAL ELECTRIC COMPANYInventors: Jared Hogg WEAVER, Gregory Scot CORMAN, Anteneh KEBBEDE, Daniel Gene DUNN, Jerome Geoffrey MAGNANT
-
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
-
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
-
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
-
Patent number: 8163434Abstract: A method of preparing a solid oxide fuel cell is described herein, as well as the fuel cell itself. The method comprises forming a cathode layer comprising a strontium composition on a ceramic electrolyte layer; and forming a barrier layer between the cathode layer and an overlying interconnect structure comprising chromium, so as to substantially prevent the formation of strontium chromate.Type: GrantFiled: August 28, 2008Date of Patent: April 24, 2012Assignee: General Electric CompanyInventors: Anteneh Kebbede, Gabriel Kwadwo Ofori-Okai, Frederic Joseph Klug, Matthew Joseph Alinger, Daniel Joseph Lewis
-
Patent number: 7892061Abstract: A hermetically sealed lamp having at least one seal-material-free bond. The seal material-free bond may be a material diffusion bond, a mechanically deformed bond such as a cold weld or crimp, a focused heat bond such as a laser bond, or any other such bond. For example, the hermetically sealed lamp may have one or more endcaps diffusion bonded to an arc envelope, such as a ceramic tube or bulb. The hermetically sealed lamp also may have one or more tubular structures, such as dosing tubes, which are mechanically closed via cold welding or crimping. Localized heating, such as the heat provided by an intense laser, also may be used to enhance any of the foregoing bonds.Type: GrantFiled: February 27, 2007Date of Patent: February 22, 2011Assignee: General Electric CompanyInventors: Bernard P. Bewlay, James A. Brewer, Sylvain S. Coulombe, Sylvia M. DeCarr, Luana E. Iorio, Anteneh Kebbede, Timothy J. Sommerer, James S. Vartuli
-
Patent number: 7839089Abstract: A system and method for hermetically sealing a lamp. Certain embodiments of the lamp have an arc envelope having an open end and, also, an end structure diffusion bonded to the arc envelope at the open end. The end structure also has a dosing passageway extending into the arc envelope. In other embodiments, a lighting device is provided with an end structure adapted to close an open end of an arc envelope, and a dosing tube diffusion bonded to the end structure. Another embodiment of the lighting device has an arc envelope and an end structure diffusion bonded to an open end of the arc envelope.Type: GrantFiled: December 17, 2003Date of Patent: November 23, 2010Assignee: General Electric CompanyInventors: Bernard P. Bewlay, James A. Brewer, Sylvain S. Coulombe, Sylvia M. DeCarr, Luana E. Lorio, Anteneh Kebbede, Timothy J. Sommerer, James S. Vartuli
-
Publication number: 20100279845Abstract: A process for producing a silicon-containing CMC article that exhibits improved physical, mechanical, and microstructural properties at elevated temperatures exceeding the melting point of silicon. The process entails producing a body containing a ceramic reinforcement material in a solid matrix that comprises solid elemental silicon and/or silicon alloy and a ceramic matrix material. The ceramic matrix composite article is produced by at least partially removing the solid elemental silicon and/or silicon alloy from the solid matrix and optionally reacting at least part of the solid elemental silicon and/or silicon alloy in the solid matrix to form one or more refractory materials. The solid elemental silicon and/or silicon alloy is sufficiently removed from the body to enable the ceramic matrix composite article to structurally and chemically withstand temperatures above 1405° C.Type: ApplicationFiled: April 30, 2009Publication date: November 4, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Anteneh Kebbede, Krishan Luthra, Gregory Corman
-
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
-
Publication number: 20100055533Abstract: A method of preparing a solid oxide fuel cell is described herein, as well as the fuel cell itself. The method comprises forming a cathode layer comprising a strontium composition on a ceramic electrolyte layer; and forming a barrier layer between the cathode layer and an overlying interconnect structure comprising chromium, so as to substantially prevent the formation of strontium chromate.Type: ApplicationFiled: August 28, 2008Publication date: March 4, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Anteneh Kebbede, Gabriel Kwadwo Ofori-Okai, Frederic Joseph Klug, Matthew Joseph Alinger, Daniel Joseph Lewis
-
Patent number: 7443091Abstract: A hermetically sealed lamp having at least one seal-material-free bond. The seal material-free bond may be a material diffusion bond, a mechanically deformed bond such as a cold weld or crimp, a focused heat bond such as a laser bond, or any other such bond. For example, the hermetically sealed lamp may have one or more endcaps diffusion bonded to an arc envelope, such as a ceramic tube or bulb. The hermetically sealed lamp also may have one or more tubular structures, such as dosing tubes, which are mechanically closed via cold welding or crimping. Localized heating, such as the heat provided by an intense laser, also may be used to enhance any of the foregoing bonds.Type: GrantFiled: February 27, 2007Date of Patent: October 28, 2008Assignee: General Electric CompanyInventors: Bernard P. Bewlay, James A. Brewer, Sylvain S. Coulombe, Sylvia M. DeCarr, Luana E. Iorio, Anteneh Kebbede, Timothy J. Sommerer, James S. Vartuli
-
Patent number: 7438621Abstract: A hermetically sealed lamp having at least one end-to-end seal. The end-to-end seal may be a material diffusion bond, a seal-material bond, or any other suitable bond. For example, the hermetically sealed lamp may have one or more endcaps butt-sealed to an arc envelope, such as a ceramic tube or bulb. The hermetically sealed lamp also may have one or more tubular structures, such as dosing tubes, which are butt-sealed to the endcap and/or arc envelope. Localized heating, such as the heat provided by an intense laser, also may be used to enhance any of the foregoing bonds.Type: GrantFiled: September 13, 2006Date of Patent: October 21, 2008Assignee: General Electric CompanyInventors: Anteneh Kebbede, Bernard P. Bewlay, James A. Brewer, Sylvain S. Coulombe, Sylvia M. DeCarr, Luana E. Iorio, Timothy J. Sommerer, James S. Vartuli
-
Publication number: 20070159105Abstract: A hermetically sealed lamp having at least one seal-material-free bond. The seal material-free bond may be a material diffusion bond, a mechanically deformed bond such as a cold weld or crimp, a focused heat bond such as a laser bond, or any other such bond. For example, the hermetically sealed lamp may have one or more endcaps diffusion bonded to an arc envelope, such as a ceramic tube or bulb. The hermetically sealed lamp also may have one or more tubular structures, such as dosing tubes, which are mechanically closed via cold welding or crimping. Localized heating, such as the heat provided by an intense laser, also may be used to enhance any of the foregoing bonds.Type: ApplicationFiled: February 27, 2007Publication date: July 12, 2007Applicant: General Electric Company, a New York CorporationInventors: Bernard Bewlay, James Brewer, Sylvain Coulombe, Sylvia DeCarr, Luana Iorio, Anteneh Kebbede, Timothy Sommerer, James Vartuli
-
Publication number: 20070161319Abstract: A hermetically sealed lamp having at least one seal-material-free bond. The seal material-free bond may be a material diffusion bond, a mechanically deformed bond such as a cold weld or crimp, a focused heat bond such as a laser bond, or any other such bond. For example, the hermetically sealed lamp may have one or more endcaps diffusion bonded to an arc envelope, such as a ceramic tube or bulb. The hermetically sealed lamp also may have one or more tubular structures, such as dosing tubes, which are mechanically closed via cold welding or crimping. Localized heating, such as the heat provided by an intense laser, also may be used to enhance any of the foregoing bonds.Type: ApplicationFiled: February 27, 2007Publication date: July 12, 2007Applicant: General Electric Company, a New York CorporationInventors: Bernard Bewlay, James Brewer, Sylvain Coulombe, Sylvia DeCarr, Luana Iorio, Anteneh Kebbede, Timothy Sommerer, James Vartuli
-
Patent number: 7215081Abstract: A hermetically sealed lamp having at least one seal-material-free bond. The seal material-free bond may be a material diffusion bond, a mechanically deformed bond such as a cold weld or crimp, a focused heat bond such as a laser bond, or any other such bond. For example, the hermetically sealed lamp may have one or more endcaps diffusion bonded to an arc envelope, such as a ceramic tube or bulb. The hermetically sealed lamp also may have one or more tubular structures, such as dosing tubes, which are mechanically closed via cold welding or crimping. Localized heating, such as the heat provided by an intense laser, also may be used to enhance any of the foregoing bonds.Type: GrantFiled: December 18, 2002Date of Patent: May 8, 2007Assignee: General Electric CompanyInventors: Bernard P. Bewlay, James A. Brewer, Sylvain S. Coulombe, Sylvia M. DeCarr, Luana E. Iorio, Anteneh Kebbede, Timothy J. Sommerer, James S. Vartuli
-
Publication number: 20070072070Abstract: An electrochemical cell structure comprises a conductive base defining a plurality of holes passing through the conductive base and a microporous cellular substrate disposed on the conductive base. In another embodiment, an electrochemical cell structure comprises a conductive base defining a plurality of holes passing through the conductive base, a coarse microporous cellular substrate disposed on the conductive base and a fine microporous cellular substrate disposed on the coarse microporous cellular substrate.Type: ApplicationFiled: September 26, 2005Publication date: March 29, 2007Inventors: Shu Quek, Anteneh Kebbede, Harish Acharya, Sauri Gudlavalleti, Andrew Shapiro, Venkat Venkataramani
-
Publication number: 20070072035Abstract: A solid oxide fuel cell is disclosed. The fuel cell includes a porous anode, formed of finely-dispersed nickel/stabilized-zirconia powder particles. The particles have an average diameter of less than about 300 nanometers. They are also characterized by a tri-phase length of greater than about 50 ?m/?m3. A solid oxide fuel cell stack is also described, along with a method of forming an anode for a solid oxide fuel cell. The method includes the step of using a spray-agglomerated, nickel oxide/stabilized-zirconia powder to form the anode.Type: ApplicationFiled: September 26, 2005Publication date: March 29, 2007Inventors: Bastiaan Korevaar, Yuk-Chiu Lau, Anteneh Kebbede, Harish Acharya, Badri Ramamurthi
-
Publication number: 20070015432Abstract: A hermetically sealed lamp having at least one end-to-end seal. The end-to-end seal may be a material diffusion bond, a seal-material bond, or any other suitable bond. For example, the hermetically sealed lamp may have one or more endcaps butt-sealed to an arc envelope, such as a ceramic tube or bulb. The hermetically sealed lamp also may have one or more tubular structures, such as dosing tubes, which are butt-sealed to the endcap and/or arc envelope. Localized heating, such as the heat provided by an intense laser, also may be used to enhance any of the foregoing bonds.Type: ApplicationFiled: September 13, 2006Publication date: January 18, 2007Inventors: Anteneh Kebbede, Bernard Bewlay, James Brewer, Sylvain Coulombe, Sylvia DeCarr, Luana Iorio, Timothy Sommerer, James Vartuli