Patents by Inventor Ashwin Raghavan
Ashwin Raghavan 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: 12748023Abstract: A method for repairing a stator stage is disclosed herein. The method includes receiving a stator stage including a plurality of stator vanes disposed between an outer diameter and an inner diameter, analyzing the stator stage for defects, determining there is a first defect in a first segment of a the stator stage, the first segment including at least one of a first portion of the outer diameter, a first portion of the inner diameter, or a first stator vane, removing the first segment from the stator stage forming a void in the stator stage, manufacturing a second segment that is the same size as the first segment, attaching the second segment to the stator stage to fill the void, performing a blending process on the stator stage including the second segment to smooth the plurality of stator vanes including the second stator vane.Type: GrantFiled: July 14, 2023Date of Patent: September 29, 2026Assignee: RTX CorporationInventors: Garrett Kernozicky, Jesse R. Boyer, Ashwin Raghavan, Peter John Breitzmann, Praba Kharan Baptist, Michael L. Vukovinsky, Lawrence A Binek
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Patent number: 12732558Abstract: A method by a network function of a wireless communication system includes receiving structured non-tabular data relating to the wireless communication system, wherein the structured non-tabular data includes network topology data in graph format. The structured non-tabular data is converted into tabular data. Converting the structured non-tabular data into tabular data includes identifying a baseline object of a graph of the network topology data and generating a row of tabular data for each baseline object in the graph of the network topology data. The method further includes storing the tabular data in a data store for access by consumer applications in the wireless communication system.Type: GrantFiled: December 15, 2021Date of Patent: September 8, 2026Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Arun Mathew Kunnumpurath Jacob, Ashwin Raghavan, James O'Meara, Mats Blomgren, Premnath Kandhasamy Narayanan
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Counterfactual and Recourse Method for Recommending Network Configurations towards Favorable Outcome
Publication number: 20250119360Abstract: A method for improving communication network performance comprises identifying a favorability status of individual predictions and/or decisions of a plurality of decisions of a machine-learning algorithm acting on the communication network. The favorability statuses are stored with corresponding values of network parameters used as features in the algorithm. A counterfactual algorithm is generated, e.g., by generating a tree-based classification algorithm, based on the stored favorability statuses and network parameter values, to derive rules for producing a favorable status based on one or more of the network parameters. A proposed recourse action comprising a change in at least one of the network parameters is identified, based on the rules, and a decision network, such as a Bayesian inference network, is generated for determining a confidence level estimating a reliability of achieving a favorable status by changing the network parameter(s).Type: ApplicationFiled: February 10, 2022Publication date: April 10, 2025Inventors: Arun Mathew Kunnumpurath Jacob, Ashwin Raghavan, James O'Meara, Paddy Farrell, Premnath Kandhasamy Narayanan -
Publication number: 20250047743Abstract: A method by a network function of a wireless communication system includes receiving structured non-tabular data relating to the wireless communication system, wherein the structured non-tabular data includes network topology data in graph format. The structured non-tabular data is converted into tabular data. Converting the structured non-tabular data into tabular data includes identifying a baseline object of a graph of the network topology data and generating a row of tabular data for each baseline object in the graph of the network topology data. The method further includes storing the tabular data in a data store for access by consumer applications in the wireless communication system.Type: ApplicationFiled: December 15, 2021Publication date: February 6, 2025Inventors: Arun Mathew KUNNUMPURATH JACOB, Ashwin RAGHAVAN, James O'MEARA, Mats BLOMGREN, Premnath KANDHASAMY NARAYANAN
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Publication number: 20250020062Abstract: A method of repairing a stator stage is disclosed herein. The method includes receiving a stator stage including a plurality of stator vanes disposed between an outer diameter and an inner diameter, analyzing the stator stage for defects, determining based on the analysis that there is a first defect on an edge of a first stator vane of the plurality of stator vanes, removing a portion of the first stator vane including the first defect to form a first scallop on the edge of the first stator vane, repairing the first stator vane including filling the first scallop to fill the first stator vane to its original size and shape creating a repaired portion, and performing a blending process to the stator stage including the first stator vane and the repaired portion to smooth the plurality of stator vanes.Type: ApplicationFiled: July 14, 2023Publication date: January 16, 2025Applicant: Raytheon Technologies CorporationInventors: GARRETT KERNOZICKY, JESSE R. BOYER, PRABA KHARAN BAPTIST, ASHWIN RAGHAVAN, PETER JOHN BREITZMANN, MICHAEL L. VUKOVINSKY
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Publication number: 20250020558Abstract: A method for repairing a stator stage is disclosed herein. The method includes receiving a stator stage including a plurality of stator vanes disposed between an outer diameter and an inner diameter, analyzing the stator stage for defects, determining there is a first defect in a first segment of a the stator stage, the first segment including at least one of a first portion of the outer diameter, a first portion of the inner diameter, or a first stator vane, removing the first segment from the stator stage forming a void in the stator stage, manufacturing a second segment that is the same size as the first segment, attaching the second segment to the stator stage to fill the void, performing a blending process on the stator stage including the second segment to smooth the plurality of stator vanes including the second stator vane.Type: ApplicationFiled: July 14, 2023Publication date: January 16, 2025Applicant: Raytheon Technologies CorporationInventors: Garrett KERNOZICKY, Jesse R. BOYER, Ashwin RAGHAVAN, Peter John BREITZMANN, Praba Kharan BAPTIST, Michael L. VUKOVINSKY, Lawrence A BINEK
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Patent number: 11826849Abstract: A joining method includes performing a first heat treatment step on a first superalloy workpiece and a second superalloy workpiece wherein at least one of the first and second superalloy workpieces include a gamma matrix phase and a gamma-prime precipitate phase. The first and second superalloy workpieces are joined using a solid state joining process, subjected to a post-weld stress relief operation and a final aging heat treatment.Type: GrantFiled: February 11, 2021Date of Patent: November 28, 2023Assignee: RTX CorporationInventors: Ashwin Raghavan, Enrique E. Montero, Max A. Kaplan, Eli N. Ross, Mario P. Bochiechio
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Publication number: 20210316392Abstract: A joining method includes performing a first heat treatment step on a first superalloy workpiece and a second superalloy workpiece wherein at least one of the first and second superalloy workpieces include a gamma matrix phase and a gamma-prime precipitate phase. The first and second superalloy workpieces are joined using a solid state joining process, subjected to a post-weld stress relief operation and a final aging heat treatment.Type: ApplicationFiled: February 11, 2021Publication date: October 14, 2021Inventors: Ashwin Raghavan, Enrique E. Montero, Max A. Kaplan, Eli N. Ross, Mario P. Bochiechio
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Patent number: 10946476Abstract: A joining method includes performing a first heat treatment step on a first superalloy workpiece and a second superalloy workpiece wherein at least one of the first and second superalloy workpieces include a gamma matrix phase and a gamma-prime precipitate phase. The first and second superalloy workpieces are joined using a solid state joining process, subjected to a post-weld stress relief operation and a final aging heat treatment.Type: GrantFiled: May 11, 2017Date of Patent: March 16, 2021Assignee: Raytheon Technologies CorporationInventors: Ashwin Raghavan, Enrique E. Montero, Max A. Kaplan, Eli N. Ross, Mario P. Bochiechio
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Publication number: 20180326533Abstract: A joining method includes performing a first heat treatment step on a first superalloy workpiece and a second superalloy workpiece wherein at least one of the first and second superalloy workpieces include a gamma matrix phase and a gamma-prime precipitate phase. The first and second superalloy workpieces are joined using a solid state joining process, subjected to a post-weld stress relief operation and a final aging heat treatment.Type: ApplicationFiled: May 11, 2017Publication date: November 15, 2018Inventors: Ashwin Raghavan, Enrique E. Montero, Max A. Kaplan, Eli N. Ross, Mario P. Bochiechio
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Publication number: 20180104765Abstract: A method of forming a hybrid component having an axis of rotation includes forming a first substrate having a first average grain size, forming a second substrate having a second average grain size different from the first average grain size, positioning an interlayer on one of the first and second substrates, positioning a portion of the first substrate adjacent a portion of the second substrate such that the interlayer extends between the portion of the first substrate and the portion of the second substrate, heating the first and second substrates and the interlayer at a temperature below the melting points of the first and second substrates to melt the interlayer, and isothermally solidifying the interlayer to form a solid-state joint between the portions of the first and second substrates.Type: ApplicationFiled: October 13, 2016Publication date: April 19, 2018Inventors: Mario P. Bochiechio, Wangen Lin, Edward R. Szela, Ashwin Raghavan
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Publication number: 20180105914Abstract: A method of forming a hybrid component having an axis of rotation includes forming a first substrate having a first interface surface and a first average grain size, forming a second substrate having a second interface surface and a second average grain size different from the first average grain size, and inertia welding the first and second substrates at a junction of the first and second interface surfaces to form a solid-state joint between the first and second substrates.Type: ApplicationFiled: October 13, 2016Publication date: April 19, 2018Inventors: Mario P. Bochiechio, Wangen Lin, D. Slade Stolz, Ashwin Raghavan
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Publication number: 20170291265Abstract: A nickel braze alloy may include less than about 2.0 wt. % aluminum, about 18.0-23.0 wt. % cobalt, about 12.0-15.0 wt. % chromium, about 3.8-4.5 wt. % molybdenum, about 0.8-1.5 wt. % niobium, about 1.8-3.0 wt. % tantalum, less than about 2.0 wt. % titanium, about 2.0-3.5 wt. % tungsten, about 0.8-1.2 wt. % boron, about 0.02-0.10 wt. % carbon, about 0.03-0.06 wt. % zirconium, and a balance of nickel and minor amounts of impurities.Type: ApplicationFiled: April 11, 2016Publication date: October 12, 2017Inventors: Mario P. Bochiechio, Edward R. Szela, Wangen Lin, Ashwin Raghavan
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Publication number: 20070141375Abstract: A direct metal laser sintered material including a substrate formed from a laser sintering process, the substrate having at least one surface, and a cladding material brazed onto at least a portion of the surface.Type: ApplicationFiled: December 20, 2005Publication date: June 21, 2007Inventors: David Budinger, Ronald Galley, Ashwin Raghavan, David Kastrup