Patents by Inventor Leonardo Ajdelsztajn

Leonardo Ajdelsztajn 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).

  • Publication number: 20230417147
    Abstract: A component for a turbine engine may be formed by spraying particulate with a nozzle toward a substrate. The particulate may be deposited to form one or more annular layers and a reinforcing structure. The component may be a closed loop annular component having a reinforcing structure of specific dimensions enabled by the methods described.
    Type: Application
    Filed: September 12, 2023
    Publication date: December 28, 2023
    Inventors: Apostolos Pavlos Karafillis, Eric Dean Jorgensen, Craig Douglas Young, Jonathan Harry Kerner, Leonardo Ajdelsztajn
  • Patent number: 11781437
    Abstract: A component for a turbine engine may be formed by spraying particulate with a nozzle toward a substrate. The particulate may be deposited to form one or more annular layers and a reinforcing structure. The component may be a closed loop annular component having a reinforcing structure of specific dimensions enabled by the methods described.
    Type: Grant
    Filed: May 4, 2021
    Date of Patent: October 10, 2023
    Assignee: General Electric Company
    Inventors: Apostolos Pavlos Karafillis, Eric Dean Jorgensen, Craig Douglas Young, Jonathan Harry Kerner, Leonardo Ajdelsztajn
  • Publication number: 20230250756
    Abstract: Methods, apparatus, systems and articles of manufacture are disclosed for a structure of an engine component, including a first plurality of unit cells offset from a neutral plane in a first direction, a second plurality of unit cells offset from the neutral plane in a second direction, a plurality of nodes joining ones of the first plurality of unit cells and ones of the second plurality of unit cells, wherein the first plurality of unit cells and the second plurality of unit cells are arranged in pairs such that ones of the first plurality of unit cells are laterally adjacent to and interconnected with ones of the second plurality of unit cells, and wherein the structure is a stiffened structure.
    Type: Application
    Filed: March 20, 2023
    Publication date: August 10, 2023
    Inventors: Apostolos Karafillis, Jonathan H. Kerner, Eric Dean Jorgensen, Leonardo Ajdelsztajn
  • Patent number: 11608780
    Abstract: Methods, apparatus, systems and articles of manufacture are disclosed for a structure of an engine component, including a first plurality of unit cells offset from a neutral plane in a first direction, a second plurality of unit cells offset from the neutral plane in a second direction, a plurality of nodes joining ones of the first plurality of unit cells and ones of the second plurality of unit cells, wherein the first plurality of unit cells and the second plurality of unit cells are arranged in pairs such that ones of the first plurality of unit cells are laterally adjacent to and interconnected with ones of the second plurality of unit cells, and wherein the structure is a stiffened structure.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: March 21, 2023
    Assignee: General Electric Company
    Inventors: Apostolos Karafillis, Jonathan H. Kerner, Eric Dean Jorgensen, Leonardo Ajdelsztajn
  • Patent number: 11600454
    Abstract: A contact assembly for an electrical device and a method for making such an assembly are presented. The contact assembly comprises a substrate and a contact material disposed on the substrate. The contact material comprises a composite material comprising a refractory material and a matrix material. The matrix material has a higher ductility than the refractory material. The composite material further comprises a core region and an outer region bounding the core region, the core region having a higher concentration of the refractory material than the outer region. The method applies cold spraying a blended feedstock to produce a layer that includes the composite material described above.
    Type: Grant
    Filed: October 12, 2019
    Date of Patent: March 7, 2023
    Assignee: ABB Schweiz AG
    Inventors: Katherine Marjorie Coughlin, Leonardo Ajdelsztajn, Jeffrey Jon Schoonover, Samuel Stephen Kim, Linda Yvonne Jacobs, Maxime Michel Pean
  • Publication number: 20220356807
    Abstract: A component for a turbine engine may be formed by spraying particulate with a nozzle toward a substrate. The particulate may be deposited to form one or more annular layers and a reinforcing structure. The component may be a closed loop annular component having a reinforcing structure of specific dimensions enabled by the methods described.
    Type: Application
    Filed: May 4, 2021
    Publication date: November 10, 2022
    Inventors: Apostolos Pavlos Karafillis, Eric Dean Jorgensen, Craig Douglas Young, Jonathan Harry Kerner, Leonardo Ajdelsztajn
  • Publication number: 20220120219
    Abstract: Methods, apparatus, systems and articles of manufacture are disclosed for a structure of an engine component, including a first plurality of unit cells offset from a neutral plane in a first direction, a second plurality of unit cells offset from the neutral plane in a second direction, a plurality of nodes joining ones of the first plurality of unit cells and ones of the second plurality of unit cells, wherein the first plurality of unit cells and the second plurality of unit cells are arranged in pairs such that ones of the first plurality of unit cells are laterally adjacent to and interconnected with ones of the second plurality of unit cells, and wherein the structure is a stiffened structure.
    Type: Application
    Filed: December 14, 2021
    Publication date: April 21, 2022
    Inventors: Apostolos Karafillis, Jonathan H. Kerner, Eric Dean Jorgensen, Leonardo Ajdelsztajn
  • Patent number: 11230971
    Abstract: Methods, apparatus, systems and articles of manufacture are disclosed for a structure of an engine component, including a first plurality of unit cells offset from a neutral plane in a first direction, a second plurality of unit cells offset from the neutral plane in a second direction, a plurality of nodes joining ones of the first plurality of unit cells and ones of the second plurality of unit cells, wherein the first plurality of unit cells and the second plurality of unit cells are arranged in pairs such that ones of the first plurality of unit cells are laterally adjacent to and interconnected with ones of the second plurality of unit cells, and wherein the structure is a stiffened structure.
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: January 25, 2022
    Assignee: General Electric Company
    Inventors: Apostolos Karafillis, Jonathan H. Kerner, Eric Dean Jorgensen, Leonardo Ajdelsztajn
  • Patent number: 11104998
    Abstract: A method is provided for adding material to a turbine engine component. The method includes cold spraying a powder towards a region of the component to form a deposit on the region of the component, the component being formed of a parent material, the parent material being a superalloy or a titanium alloy and defining a parent material property value, and the deposit defining a deposit material property value equal to at least fifty percent of the parent material property.
    Type: Grant
    Filed: July 20, 2019
    Date of Patent: August 31, 2021
    Assignee: General Electric Company
    Inventors: Mark Dean Pezzutti, Leonardo Ajdelsztajn
  • Patent number: 10989223
    Abstract: Methods for repairing flange bolt holes and the resulting flange bolt holes are provided. The methods and products include the incorporation of a coating system comprising a corrosion resistant layer, which can be formed by resistance plug welding, slurry or sol-gel processing, or thermal/cold spray processing. The corrosion resistant layer can be a super alloy or ceramic material and is different than the base material of the flange bolt hole. Corrosion of the flange bolt hole can be reduced or prevented from occurring with the use of the coating system.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: April 27, 2021
    Assignee: General Electric Company
    Inventors: Bala Srinivasan Parthasarathy, Guruprasad Sundararajan, Evan Jarrett Dolley, Jr., Leonardo Ajdelsztajn
  • Publication number: 20210017651
    Abstract: A method is provided for adding material to a turbine engine component. The method includes cold spraying a powder towards a region of the component to form a deposit on the region of the component, the component being formed of a parent material, the parent material being a superalloy or a titanium alloy and defining a parent material property value, and the deposit defining a deposit material property value equal to at least fifty percent of the parent material property.
    Type: Application
    Filed: July 20, 2019
    Publication date: January 21, 2021
    Inventors: Mark Dean Pezzutti, Leonardo Ajdelsztajn
  • Publication number: 20200043675
    Abstract: A contact assembly for an electrical device and a method for making such an assembly are presented. The contact assembly comprises a substrate and a contact material disposed on the substrate. The contact material comprises a composite material comprising a refractory material and a matrix material. The matrix material has a higher ductility than the refractory material. The composite material further comprises a core region and an outer region bounding the core region, the core region having a higher concentration of the refractory material than the outer region. The method applies cold spraying a blended feedstock to produce a layer that includes the composite material described above..
    Type: Application
    Filed: October 12, 2019
    Publication date: February 6, 2020
    Inventors: Leonardo Ajdelsztajn, Jeffrey Jon Schoonover, Samuel Stephen Kim, Linda Yvonne Jacobs, Maxime Michel Pean, Katherine Marjorie Coughlin
  • Patent number: 10446336
    Abstract: A contact assembly for an electrical device and a method for making such an assembly are presented. The contact assembly comprises a substrate and a contact material disposed on the substrate. The contact material comprises a composite material comprising a refractory material and a matrix material. The matrix material has a higher ductility than the refractory material. The composite material further comprises a core region and an outer region bounding the core region, the core region having a higher concentration of the refractory material than the outer region. The method applies cold spraying a blended feedstock to produce a layer that includes the composite material described above.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: October 15, 2019
    Assignee: ABB Schweiz AG
    Inventors: Leonardo Ajdelsztajn, Jeffrey Jon Schoonover, Samuel Stephen Kim, Linda Yvonne Jacobs, Maxime Michel Pean, Katherine Marjorie Coughlin
  • Publication number: 20190195135
    Abstract: A titanium-based component having a high heat capacity surface. The high heat capacity surface prevents or inhibits titanium fires. The component is titanium-based, forming the substrate, and includes a high heat capacity surface overlying the titanium substrate. A diffusion barrier is intermediate the titanium-based substrate and the high heat capacity surface. The diffusion barrier is non-reactive with both the titanium-based substrate and the high heat capacity surface. The system eliminates the formation of detrimental phases due to diffusion between the applied high heat capacity surface and the titanium substrate. The high heat capacity material has a coefficient of thermal expansion compatible with the coefficient of thermal expansion of the titanium-based substrate.
    Type: Application
    Filed: December 22, 2017
    Publication date: June 27, 2019
    Inventors: Alan Glenn Turner, Andrew Philip Woodfield, Leonardo Ajdelsztajn, Laura Cerully Dial
  • Publication number: 20180245194
    Abstract: An article includes a substrate comprising a precipitate-strengthened alloy and a coating disposed over the substrate. The alloy comprises a) a population of gamma-prime precipitates, the population having a multimodal size distribution with at least one mode corresponding to a size of less than about 100 nanometers; or b) a population of gamma-double-prime precipitates having a median size less than about 300 nanometers. The coating comprises at least two elements, and further comprises a plurality of prior particles. At least a portion of the coating is substantially free of rapid solidification artifacts. Methods for fabricating the article and for processing powder useful for fabricating the article are also provided.
    Type: Application
    Filed: April 27, 2018
    Publication date: August 30, 2018
    Inventors: Andrew Joseph Detor, Leonardo Ajdelsztajn, Thomas Michael Bigelow, Richard Didomizio, Andrew William Emge, James Anthony Ruud, Michael James Weimer
  • Publication number: 20180223870
    Abstract: Methods for repairing flange bolt holes and the resulting flange bolt holes are provided. The methods and products include the incorporation of a coating system comprising a corrosion resistant layer, which can be formed by resistance plug welding, slurry or sol-gel processing, or thermal/cold spray processing. The corrosion resistant layer can be a super alloy or ceramic material and is different than the base material of the flange bolt hole. Corrosion of the flange bolt hole can be reduced or prevented from occurring with the use of the coating system.
    Type: Application
    Filed: February 6, 2017
    Publication date: August 9, 2018
    Inventors: Bala Srinivasan Parthasarathy, Guruprasad Sundararajan, Evan Jarrett Dolley, JR., Leonardo Ajdelsztajn
  • Patent number: 10017844
    Abstract: An article includes a substrate comprising a precipitate-strengthened alloy and a coating disposed over the substrate. The alloy comprises a) a population of gamma-prime precipitates, the population having a multimodal size distribution with at least one mode corresponding to a size of less than about 100 nanometers; or b) a population of gamma-double-prime precipitates having a median size less than about 300 nanometers. The coating comprises at least two elements, and further comprises a plurality of prior particles. At least a portion of the coating is substantially free of rapid solidification artifacts. Methods for fabricating the article and for processing powder useful for fabricating the article are also provided.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: July 10, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Andrew Joseph Detor, Leonardo Ajdelsztajn, Thomas Michael Bigelow, Richard Didomizio, Andrew William Emge, James Anthony Ruud, Michael James Weimer
  • Publication number: 20180174769
    Abstract: A contact assembly for an electrical device and a method for making such an assembly are presented. The contact assembly comprises a substrate and a contact material disposed on the substrate. The contact material comprises a composite material comprising a refractory material and a matrix material. The matrix material has a higher ductility than the refractory material. The composite material further comprises a core region and an outer region bounding the core region, the core region having a higher concentration of the refractory material than the outer region. The method applies cold spraying a blended feedstock to produce a layer that includes the composite material described above.
    Type: Application
    Filed: December 16, 2016
    Publication date: June 21, 2018
    Inventors: Leonardo Ajdelsztajn, Jeffrey Jon Schoonover, Samuel Stephen Kim, Linda Yvonne Jacobs, Maxime Michel Pean, Katherine Marjorie Coughlin
  • Patent number: 9931815
    Abstract: Coatings for substrates, such as superalloy substrates, are provided. The coating can include: 15 wt % to 45 wt % cobalt; 20 wt % to 40 wt % chromium; 2 wt % to 15 wt % aluminum; 0.1 wt % to 1 wt % yttrium; and nickel. The coatings may include nickel, cobalt, chromium and aluminum, and other optional additives to improve oxidation and corrosion resistance of the substrate without significant debit to its mechanical properties.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: April 3, 2018
    Assignee: General Electric Company
    Inventors: David Paul Mourer, Leonardo Ajdelsztajn, Kenneth Rees Bain, Andrew Joseph Detor, Andrew William Emge, James Anthony Ruud, Michael James Weimer
  • Publication number: 20170175244
    Abstract: An article includes a substrate comprising a precipitate-strengthened alloy and a coating disposed over the substrate. The alloy comprises a) a population of gamma-prime precipitates, the population having a multimodal size distribution with at least one mode corresponding to a size of less than about 100 nanometers; or b) a population of gamma-double-prime precipitates having a median size less than about 300 nanometers. The coating comprises at least two elements, and further comprises a plurality of prior particles. At least a portion of the coating is substantially free of rapid solidification artifacts. Methods for fabricating the article and for processing powder useful for fabricating the article are also provided.
    Type: Application
    Filed: December 18, 2015
    Publication date: June 22, 2017
    Inventors: Andrew Joseph Detor, Leonardo Ajdelsztajn, Thomas Michael Bigelow, Richard Didomizio, Andrew William Emge, James Anthony Ruud, Michael James Weimer