Patents by Inventor Cathleen Ann HOEL
Cathleen Ann HOEL 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: 20240033092Abstract: The present discussion relates to the design fabrication and use of synthetic scaffold structure for bone growth. In certain implementations the scaffold structures are comprised of a plurality of repeating structures each defined by a local topology. The local topologies are defined at a subset of points in their respective volumes by various parameters including, but not limited to, shape index, curvedness, mean curvature, and Gauss curvature.Type: ApplicationFiled: July 29, 2022Publication date: February 1, 2024Inventors: Gautam Parthasarathy, Daniel J. Erno, Chitresh Bhushan, Cathleen Ann Hoel, Sara Kelly Peterson, Jessica Susanne Martinez, Brian Michael Davis, Steven Jude Duclos, Fiona Ginty
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Publication number: 20230228199Abstract: A coated component including a slotted ceramic coating with a reactive phase coating disposed thereon for improved resistance to environmental contaminant compositions, along with methods of its formation, is provided. The coated component may include a substrate defining a surface, a ceramic coating disposed on the surface of the substrate, and a reactive phase coating disposed on the layer of environmental contaminant compositions. The ceramic coating includes a plurality of slots disposed in the ceramic coating forming segments of ceramic coating material.Type: ApplicationFiled: March 9, 2023Publication date: July 20, 2023Inventors: Hrishikesh Keshavan, Byron Andrew Pritchard, Cathleen Ann Hoel, Ambarish Jayant Kulkarni, Michael Solomon Idelchik, Bernard Patrick Bewlay
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Patent number: 11624288Abstract: A coated component including a slotted ceramic coating with a reactive phase coating disposed thereon for improved resistance to environmental contaminant compositions, along with methods of its formation, is provided. The coated component may include a substrate defining a surface, a ceramic coating disposed on the surface of the substrate, and a reactive phase coating disposed on the layer of environmental contaminant compositions. The ceramic coating includes a plurality of slots disposed in the ceramic coating forming segments of ceramic coating material.Type: GrantFiled: January 9, 2018Date of Patent: April 11, 2023Assignee: General Electric CompanyInventors: Hrishikesh Keshavan, Byron Andrew Pritchard, Cathleen Ann Hoel, Ambarish Jayant Kulkarni, Michael Solomon Idelchik, Bernard Patrick Bewlay
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Patent number: 11578002Abstract: Ceramic slurries may include ceramic particles, a photoreactive-photostable hybrid binder, and a photoinitiator. The photoreactive-photostable hybrid binder may include a photoreactive organic resin component, a photoreactive siloxane component, and one or more photostable siloxane components. Methods of forming a ceramic part may include curing a portion of a ceramic slurry by exposing the portion of the ceramic slurry to light to form a green ceramic part, and partially firing the green ceramic part to form a brown ceramic part. The brown ceramic part may be sintered at or above a sintering temperature of the ceramic particles to form a ceramic part, wherein sintering includes heating the brown ceramic part to a sufficient temperature to promote reaction bonding that converts silica from the photoreactive-photostable hybrid binder into silicates that bond with the ceramic particles.Type: GrantFiled: February 27, 2020Date of Patent: February 14, 2023Assignee: General Electric CompanyInventors: Michael Joseph O'Brien, Cathleen Ann Hoel
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Patent number: 11572313Abstract: Ceramic slurries may include ceramic particles, a photoreactive-photostable hybrid binder, and a photoinitiator. The photoreactive-photostable hybrid binder may include a photoreactive organic resin component, a photoreactive siloxane component, and one or more photostable siloxane components. Methods of forming a ceramic part may include curing a portion of a ceramic slurry by exposing the portion of the ceramic slurry to light to form a green ceramic part, and partially firing the green ceramic part to form a brown ceramic part. The brown ceramic part may be sintered at or above a sintering temperature of the ceramic particles to form a ceramic part, wherein sintering includes heating the brown ceramic part to a sufficient temperature to promote reaction bonding that converts silica from the photoreactive-photostable hybrid binder into silicates that bond with the ceramic particles.Type: GrantFiled: February 27, 2020Date of Patent: February 7, 2023Assignee: General Electric CompanyInventors: Michael Joseph O'Brien, Cathleen Ann Hoel
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Patent number: 11390563Abstract: A ceramic slurry for forming a ceramic article includes a binder, a first plurality of ceramic particles having a first morphology, a second plurality of ceramic particles having a second morphology that is different from the first morphology; and a photoinitiator. A method for using this slurry for fabricating ceramic articles is presented as well.Type: GrantFiled: December 12, 2019Date of Patent: July 19, 2022Assignee: General Electric CompanyInventors: Cathleen Ann Hoel, Xi Yang, Michael Joseph O'Brien
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Publication number: 20220032585Abstract: A method of making a component of an electric machine using an additive manufacturing process is disclosed. The method includes forming a first lamina of a conductive material, building a first layer of a second material on a first surface of the first lamina, treating the second material on the first surface of the first lamina to define a first insulative layer, and building on the first insulative layer a second lamina of a conductive material. The steps can be repeated iteratively until a desired thickness or number of layers is reached.Type: ApplicationFiled: July 28, 2020Publication date: February 3, 2022Inventors: Lili Zhang, Michael Joseph O'Brien, Cathleen Ann Hoel, Min Zou, Raghavendra Adharapurapu
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Publication number: 20210269362Abstract: Ceramic slurries may include ceramic particles, a photoreactive-photostable hybrid binder, and a photoinitiator. The photoreactive-photostable hybrid binder may include a photoreactive organic resin component, a photoreactive siloxane component, and one or more photostable siloxane components. Methods of forming a ceramic part may include curing a portion of a ceramic slurry by exposing the portion of the ceramic slurry to light to form a green ceramic part, and partially firing the green ceramic part to form a brown ceramic part. The brown ceramic part may be sintered at or above a sintering temperature of the ceramic particles to form a ceramic part, wherein sintering includes heating the brown ceramic part to a sufficient temperature to promote reaction bonding that converts silica from the photoreactive-photostable hybrid binder into silicates that bond with the ceramic particles.Type: ApplicationFiled: February 27, 2020Publication date: September 2, 2021Inventors: Michael Joseph O'Brien, Cathleen Ann Hoel
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Publication number: 20210269361Abstract: Ceramic slurries may include ceramic particles, a photoreactive-photostable hybrid binder, and a photoinitiator. The photoreactive-photostable hybrid binder may include a photoreactive organic resin component, a photoreactive siloxane component, and one or more photostable siloxane components. Methods of forming a ceramic part may include curing a portion of a ceramic slurry by exposing the portion of the ceramic slurry to light to form a green ceramic part, and partially firing the green ceramic part to form a brown ceramic part. The brown ceramic part may be sintered at or above a sintering temperature of the ceramic particles to form a ceramic part, wherein sintering includes heating the brown ceramic part to a sufficient temperature to promote reaction bonding that converts silica from the photoreactive-photostable hybrid binder into silicates that bond with the ceramic particles.Type: ApplicationFiled: February 27, 2020Publication date: September 2, 2021Inventors: Michael Joseph O'Brien, Cathleen Ann Hoel
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Patent number: 10908106Abstract: A coating analysis system and method inductively heat a component having a coating. Optionally, the component is heated while a cooling fluid flows through cooling holes extending through the component and the coating. The system and method measure rates of infrared radiation emission from the component and the coating at different locations on the component and the coating. The system and method determining bond qualities (e.g., tensile strengths of bonds) between the coating and the component at the different locations based on the rates of infrared radiation emission that are measured.Type: GrantFiled: July 26, 2018Date of Patent: February 2, 2021Assignee: GENERAL ELECTRIC COMPANYInventors: Venkata Vijayaraghava Nalladega, Roger Dale Wustman, Cathleen Ann Hoel, Margeaux Wallace
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Patent number: 10822696Abstract: An article for service at high temperatures comprises a substrate comprising a first region and a second region; and a coating disposed over the substrate. The coating comprises a first portion disposed over the first region of the substrate and a second portion disposed over the second region of the substrate. The coating includes a layer comprising a ceramic material and further including a quantity of surface-connected voids, and a protective agent is disposed within at least some of the surface-connected voids of the layer. Within the first portion, the agent is present within the layer at a concentration of less than or equal to 4 percent by volume of the layer exclusive of the voids, while, within the second portion, the agent is present within the layer at a concentration up to the carrying capacity of the layer. Methods for forming the article are also presented.Type: GrantFiled: December 14, 2016Date of Patent: November 3, 2020Assignee: General Electric CompanyInventors: Cathleen Ann Hoel, Kristen Hall Brosnan, Curtis Alan Johnson, Shankar Sivaramakrishnan
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Publication number: 20200115284Abstract: A ceramic slurry for forming a ceramic article includes a binder, a first plurality of ceramic particles having a first morphology, a second plurality of ceramic particles having a second morphology that is different from the first morphology; and a photoinitiator. A method for using this slurry for fabricating ceramic articles is presented as well.Type: ApplicationFiled: December 12, 2019Publication date: April 16, 2020Inventors: Cathleen Ann Hoel, Xi Yang, Michael Joseph O'Brien
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Publication number: 20200033276Abstract: A coating analysis system and method inductively heat a component having a coating. Optionally, the component is heated while a cooling fluid flows through cooling holes extending through the component and the coating. The system and method measure rates of infrared radiation emission from the component and the coating at different locations on the component and the coating. The system and method determining bond qualities (e.g., tensile strengths of bonds) between the coating and the component at the different locations based on the rates of infrared radiation emission that are measured.Type: ApplicationFiled: July 26, 2018Publication date: January 30, 2020Inventors: Venkata Vijayaraghava Nalladega, Roger Dale Wustman, Cathleen Ann Hoel, Margeaux Wallace
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Patent number: 10538460Abstract: A ceramic slurry for forming a ceramic article includes a binder, a first plurality of ceramic particles having a first morphology, a second plurality of ceramic particles having a second morphology that is different from the first morphology; and a photoinitiator. A method for using this slurry for fabricating ceramic articles is presented as well.Type: GrantFiled: March 15, 2018Date of Patent: January 21, 2020Assignee: General Electric CompanyInventors: Cathleen Ann Hoel, Xi Yang, Michael Joseph O'Brien
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Patent number: 10508809Abstract: Embodiments of the present disclosure are directed to an article and methods of forming the article. The article includes a thermal barrier coating disposed on a substrate. The thermal barrier coating includes a thermal barrier material and partially filled surface-connected columnar voids. The partially filled surface-connected columnar voids are interspersed with the thermal barrier material in the thermal barrier coating. At least some of the partially filled surface-connected columnar voids include a calcium-magnesium-aluminum-silicon-oxide (CMAS)-reactive material disposed within, such that the CMAS-reactive material is physically separated from the substrate by a columnar cavity having an aspect ratio greater than 3.Type: GrantFiled: October 31, 2016Date of Patent: December 17, 2019Assignee: General Electric CompanyInventors: Cathleen Ann Hoel, Kristen Hall Brosnan
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Publication number: 20190284096Abstract: A ceramic slurry for forming a ceramic article includes a binder, a first plurality of ceramic particles having a first morphology, a second plurality of ceramic particles having a second morphology that is different from the first morphology; and a photoinitiator. A method for using this slurry for fabricating ceramic articles is presented as well.Type: ApplicationFiled: March 15, 2018Publication date: September 19, 2019Inventors: Cathleen Ann Hoel, Xi Yang, Michael Joseph O'Brien
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Publication number: 20190211696Abstract: A coated component including a slotted ceramic coating with a reactive phase coating disposed thereon for improved resistance to environmental contaminant compositions, along with methods of its formation, is provided. The coated component may include a substrate defining a surface, a ceramic coating disposed on the surface of the substrate, and a reactive phase coating disposed on the layer of environmental contaminant compositions. The ceramic coating includes a plurality of slots disposed in the ceramic coating forming segments of ceramic coating material.Type: ApplicationFiled: January 9, 2018Publication date: July 11, 2019Inventors: Hrishikesh Keshavan, Byron Andrew Pritchard, Cathleen Ann Hoel, Ambarish Jayant Kulkarni, Michael Solomon Idelchik, Bernard Patrick Bewlay
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Patent number: 10023500Abstract: The subject matter disclosed herein relates generally to light-curable ceramic slurries, and more specifically, to hybrid binders for light-curable ceramic slurries. A light-curable ceramic slurry includes a hybrid binder having an organic resin component and a multi-functional reactive siloxane component that is miscible with the organic resin component. The slurry also includes a photoinitiator having a corresponding photoactivation wavelength range and ceramic particles. The slurry is cured via exposure to light in the photoactivation wavelength range of the photoinitiator such that both the organic resin component and the multi-functional reactive siloxane component of the hybrid binder polymerize.Type: GrantFiled: August 30, 2016Date of Patent: July 17, 2018Assignee: General Electric CompanyInventors: Michael Joseph O'Brien, Cathleen Ann Hoel
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Publication number: 20180163062Abstract: An article for service at high temperatures comprises a substrate comprising a first region and a second region; and a coating disposed over the substrate. The coating comprises a first portion disposed over the first region of the substrate and a second portion disposed over the second region of the substrate. The coating includes a layer comprising a ceramic material and further including a quantity of surface-connected voids, and a protective agent is disposed within at least some of the surface-connected voids of the layer. Within the first portion, the agent is present within the layer at a concentration of less than or equal to 4 percent by volume of the layer exclusive of the voids, while, within the second portion, the agent is present within the layer at a concentration up to the carrying capacity of the layer. Methods for forming the article are also presented.Type: ApplicationFiled: December 14, 2016Publication date: June 14, 2018Inventors: Cathleen Ann Hoel, Kristen Hall Brosnan, Curtis Alan Johnson, Shankar Sivaramakrishnan
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Publication number: 20180119270Abstract: Embodiments of the present disclosure are directed to an article and methods of forming the article. The article includes a thermal barrier coating disposed on a substrate. The thermal barrier coating includes a thermal barrier material and partially filled surface-connected columnar voids. The partially filled surface-connected columnar voids are interspersed with the thermal barrier material in the thermal barrier coating. At least some of the partially filled surface-connected columnar voids include a calcium-magnesium-aluminum-silicon-oxide (CMAS)-reactive material disposed within, such that the CMAS-reactive material is physically separated from the substrate by a columnar cavity having an aspect ratio greater than 3.Type: ApplicationFiled: October 31, 2016Publication date: May 3, 2018Inventors: Cathleen Ann Hoel, Kristen Hall Brosnan