Patents by Inventor Suresh Subramanian
Suresh Subramanian 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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Ceramic matrix composite articles having different localized properties and methods for forming same
Patent number: 11890836Abstract: Ceramic matrix composite articles include, for example a first plurality of plies of ceramic fibers in a ceramic matrix defining a first extent, and a local at least one second ply in said ceramic matrix defining a second extent on and/or in said first plurality of plies with the second extent being less than said first extent. The first plurality of plies has a first property, the at least one second ply has at least one second property, and said first property being different from said at least one second property. The different properties may include one or more different mechanical (stress/strain) properties, one or more different thermal conductivity properties, one or more different electrical conductivity properties, one or more different other properties, and combinations thereof.Type: GrantFiled: June 28, 2022Date of Patent: February 6, 2024Assignee: General Electric CompanyInventors: Matthew Hockemeyer, Jason David Shapiro, K. M. K. Genghis Khan, James Scott Vartuli, Daniel Gene Dunn, Shatil Sinha, Douglas Decesare, Suresh Subramanian -
Patent number: 11773734Abstract: A coated component, along with methods of its formation and use, is provided. The coated component may include a substrate having a surface with a plurality of cavities defined therein, a bond coating (e.g., including a silicon material) on the surface of the substrate within the cavities, and an environmental barrier coating over the surface of the substrate and encasing the bond coating within the cavities such that the bond coating, when melted, is contained within the cavities. Such a coated component may be, in one embodiment, a turbine component, such as a CMC component for use in a hot gas path of a gas turbine engine.Type: GrantFiled: September 7, 2017Date of Patent: October 3, 2023Assignee: General Electric CompanyInventors: Glen Harold Kirby, Suresh Subramanian, Suresh Viswanathan, James Dale Steibel
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Patent number: 11639315Abstract: A coated component, along with methods of its formation and use, is provided. The coated component may include a substrate having a surface, a first refractory layer on the surface of the substrate, a silicon-based bond coating on the first refractory layer, and an environmental barrier coating on the silicon-based bond coating. The silicon-based bond coating includes a silicon-phase contained within a refractory phase such that, when melted, the silicon-phase is contained within the refractory phase and between the surface of the substrate and an inner surface of the environmental barrier coating.Type: GrantFiled: September 7, 2017Date of Patent: May 2, 2023Assignee: General Electric CompanyInventors: Glen Harold Kirby, Suresh Subramanian, Suresh Viswanathan, James Dale Steibel
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CERAMIC MATRIX COMPOSITE ARTICLES HAVING DIFFERENT LOCALIZED PROPERTIES AND METHODS FOR FORMING SAME
Publication number: 20220324206Abstract: Ceramic matrix composite articles include, for example a first plurality of plies of ceramic fibers in a ceramic matrix defining a first extent, and a local at least one second ply in said ceramic matrix defining a second extent on and/or in said first plurality of plies with the second extent being less than said first extent. The first plurality of plies has a first property, the at least one second ply has at least one second property, and said first property being different from said at least one second property. The different properties may include one or more different mechanical (stress/strain) properties, one or more different thermal conductivity properties, one or more different electrical conductivity properties, one or more different other properties, and combinations thereof.Type: ApplicationFiled: June 28, 2022Publication date: October 13, 2022Inventors: Matthew Hockemeyer, Jason David Shapiro, K.M.K. Genghis Khan, James Scott Vartuli, Daniel Gene Dunn, Shatil Sinha, Douglas Decesare, Suresh Subramanian -
Patent number: 11401217Abstract: A coated component, along with method of forming the same, is provided. The coated component may include a substrate having a surface, a silicon-based bond coating on the surface of the substrate, and an EBC on the silicon-based bond coating. The silicon-based bond coating may include a silicon-phase contained within a refractory phase. The silicon-phase, when melted, is contained within the refractory phase and between the surface of the substrate and an inner surface of the environmental barrier coating. Such a coated component may be, in particular embodiments, a turbine component.Type: GrantFiled: September 7, 2017Date of Patent: August 2, 2022Assignee: General Electric CompanyInventors: Glen Harold Kirby, Suresh Subramanian, Suresh Viswanathan, James Dale Steibel
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Ceramic matrix composite articles having different localized properties and methods for forming same
Patent number: 11383494Abstract: Ceramic matrix composite articles include, for example a first plurality of plies of ceramic fibers in a ceramic matrix defining a first extent, and a local at least one second ply in said ceramic matrix defining a second extent on and/or in said first plurality of plies with the second extent being less than said first extent. The first plurality of plies has a first property, the at least one second ply has at least one second property, and said first property being different from said at least one second property. The different properties may include one or more different mechanical (stress/strain) properties, one or more different thermal conductivity properties, one or more different electrical conductivity properties, one or more different other properties, and combinations thereof.Type: GrantFiled: July 1, 2016Date of Patent: July 12, 2022Assignee: General Electric CompanyInventors: Matthew Hockemeyer, Jason David Shapiro, K.M.K. Genghis Khan, James Scott Vartuli, Daniel Gene Dunn, Shatil Sinha, Douglas Decesare, Suresh Subramanian -
Patent number: 10774008Abstract: A ceramic matrix composite article includes a chemical vapor infiltration ceramic matrix composite base portion including ceramic fiber reinforcement material in a ceramic matrix material having between 0% and 5% free silicon. The ceramic matrix composite article further includes a melt infiltration ceramic matrix composite covering portion including a ceramic fiber reinforcement material in a ceramic matrix material having a greater percentage of free silicon than the chemical vapor infiltration ceramic matrix composite base portion.Type: GrantFiled: September 21, 2017Date of Patent: September 15, 2020Assignee: General Electric CompanyInventors: Suresh Subramanian, Mark Eugene Noe, James Dale Steibel, Jason David Shapiro, Brandon ALIanson Reynolds, Kurtis C. Montgomery, Jared Hogg Weaver, Daniel Gene Dunn
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Patent number: 10467457Abstract: A system and method for capturing images used in a facial recognition system are provided. The system and method are configured to generate a sequential set of control signals configured to cause a camera to capture a corresponding sequential set of probe images of a face of an individual. Each control signal in the sequential set of control signals is configured to cause the camera to capture a probe image of the sequential set of probe images using a different exposure time. The different exposure times associated with the sequential set of control signals together form a predetermined profile configured to enable capture of a usable image from the sequential set of probe images despite variation in at least one of an amount of light and a skin tone of the face of the individual.Type: GrantFiled: December 3, 2015Date of Patent: November 5, 2019Assignee: NEC Corporation of AmericaInventors: Krishna Ranganath, Alvin Yap, Suresh Subramanian
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Patent number: 10450870Abstract: An airfoil for an aircraft engine is provided. The airfoil may include a plurality of composite plies extending in a chordwise direction from a leading edge to a trailing edge and in a spanwise direction between an airfoil tip and an airfoil base. The airfoil may include at least one discontinuous ply having a first ply segment, a second ply segment, and a butt joint disposed between the first ply segment and the second ply segment. The butt joint may be disposed along a first fragment profile to frangibly attach the first and second ply segments.Type: GrantFiled: February 9, 2016Date of Patent: October 22, 2019Assignee: General Electric CompanyInventors: Phani Nandula, Suresh Subramanian, Nicholas Joseph Kray, Gregory Carl Gemeinhardt
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Patent number: 10422340Abstract: According to present embodiments or aspects thereof, a composite booster spool with separable composite blades is provided. The blades are inserted radially from within the inner circumference of the spool and extend outwardly through the spool. The system provides a reduced weight assembly as compared to prior art metallic or composite/metallic combination systems. Additionally, the blades are separable which results in a more field-serviceable assembly over a fully integral system wherein the blades and spool are integrally formed from composites or combination of metal and composites.Type: GrantFiled: May 6, 2015Date of Patent: September 24, 2019Assignee: General Electric CompanyInventors: Nicholas Joseph Kray, Suresh Subramanian, Phani Nandula, Dong-Jin Shim, Todd Alan Anderson, Mark Ernest Vermilyea
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Patent number: 10371625Abstract: Identification of reflective surfaces as being associated with optical threats is disclosed. A first laser signal is emitted from a first laser system at a first wavelength and a first emission circular polarization orientation. A first signal reflection of the first laser signal from a reflective surface at the first wavelength having a first return circular polarization orientation that is different from the first emission circular polarization orientation is detected. A first return quantification of the first signal reflection, based at least in part on an amount of circular polarization of the first signal reflection, is determined. It is determined that the reflective surface is associated with a threat optic based at least in part on the first return quantification.Type: GrantFiled: June 23, 2016Date of Patent: August 6, 2019Assignee: Lockheed Martin CorporationInventors: David R. Twede, Suresh Subramanian, Richard William Guthrie
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Patent number: 10329201Abstract: A method for forming a ceramic matrix composite article includes laying up a first group of plies; laying up a second group of plies, the first and second groups of plies being adjacent to each other; compacting the first group of plies and the second group of plies in the same processing step; and performing a first infiltration process on the first group of plies. The method also includes performing a second infiltration process on the second group of plies, the first infiltration process being one of a melt infiltration process or a chemical vapor infiltration process, and the second infiltration process being the other of the melt infiltration process or the chemical vapor infiltration process.Type: GrantFiled: September 21, 2017Date of Patent: June 25, 2019Assignee: General Electric CompanyInventors: James Dale Steibel, Suresh Subramanian, Suresh Viswanathan, Jared Hogg Weaver
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Patent number: 10247014Abstract: Compressor blades constructed of composite materials are disclosed. Some example compressor blades may include a composite blade panel including an airfoil having a span extending radially outward with respect to an axis of rotation and/or a blade attachment feature radially inward from the airfoil with respect to the axis of rotation. The blade attachment feature may be circumferentially oriented with respect to the axis of rotation. The blade attachment feature may be arranged to releasably engage a generally circumferentially oriented spool attachment feature. The spool attachment feature may be generally shaped as a circumferential dovetail slot configured to slidably receive the blade attachment feature therein.Type: GrantFiled: May 21, 2014Date of Patent: April 2, 2019Assignee: General Electric CompanyInventors: Joseph Nicholas Kray, Gregory Carl Gemeinhardt, Prakash Kashiram Jadhav, Douglas Edward Klei, Phani Nandula, Suresh Subramanian
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Publication number: 20190084891Abstract: A method for forming a ceramic matrix composite article includes laying up a first group of plies; laying up a second group of plies, the first and second groups of plies being adjacent to each other; compacting the first group of plies and the second group of plies in the same processing step; and performing a first infiltration process on the first group of plies. The method also includes performing a second infiltration process on the second group of plies, the first infiltration process being one of a melt infiltration process or a chemical vapor infiltration process, and the second infiltration process being the other of the melt infiltration process or the chemical vapor infiltration process.Type: ApplicationFiled: September 21, 2017Publication date: March 21, 2019Inventors: James Dale Steibel, Suresh Subramanian, Suresh Viswanathan, Jared Hogg Weaver
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Publication number: 20190084892Abstract: A ceramic matrix composite article includes a chemical vapor infiltration ceramic matrix composite base portion including ceramic fiber reinforcement material in a ceramic matrix material having between 0% and 5% free silicon. The ceramic matrix composite article further includes a melt infiltration ceramic matrix composite covering portion including a ceramic fiber reinforcement material in a ceramic matrix material having a greater percentage of free silicon than the chemical vapor infiltration ceramic matrix composite base portion.Type: ApplicationFiled: September 21, 2017Publication date: March 21, 2019Inventors: Suresh Subramanian, Mark Eugene Noe, James Dale Steibel, Jason David Shapiro, Brandon ALlanson Reynolds, Kurtis C. Montgomery, Jared Hogg Weaver, Daniel Gene Dunn
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Publication number: 20190071358Abstract: A coated component, along with method of forming the same, is provided. The coated component may include a substrate having a surface, a silicon-based bond coating on the surface of the substrate, and an EBC on the silicon-based bond coating. The silicon-based bond coating may include a silicon-phase contained within a refractory phase. The silicon-phase, when melted, is contained within the refractory phase and between the surface of the substrate and an inner surface of the environmental barrier coating. Such a coated component may be, in particular embodiments, a turbine component.Type: ApplicationFiled: September 7, 2017Publication date: March 7, 2019Inventors: Glen Harold Kirby, Suresh Subramanian, Suresh Viswanathan, James Dale Steibel
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Publication number: 20190071769Abstract: A coated component, along with methods of its formation and use, is provided. The coated component may include a substrate having a surface, a first refractory layer on the surface of the substrate, a silicon-based bond coating on the first refractory, and an environmental barrier coating on the silicon-based bond coating. The silicon-based bond coating includes a silicon-phase contained within a refractory phase such that, when melted, the silicon-phase is contained within the refractory phase and between the surface of the substrate and an inner surface of the environmental barrier coating.Type: ApplicationFiled: September 7, 2017Publication date: March 7, 2019Inventors: Glen Harold Kirby, Suresh Subramanian, Suresh Viswanathan, James Dale Steibel
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Publication number: 20190071983Abstract: A coated component, along with methods of its formation and use, is provided. The coated component may include a substrate having a surface with a plurality of cavities defined therein, a bond coating (e.g., including a silicon material) on the surface of the substrate within the cavities, and an environmental barrier coating over the surface of the substrate and encasing the bond coating within the cavities such that the bond coating, when melted, is contained within the cavities. Such a coated component may be, in one embodiment, a turbine component, such as a CMC component for use in a hot gas path of a gas turbine engine.Type: ApplicationFiled: September 7, 2017Publication date: March 7, 2019Inventors: Glen Harold Kirby, Suresh Subramanian, Suresh Viswanathan, James Dale Steibel
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CERAMIC MATRIX COMPOSITE ARTICLES HAVING DIFFERENT LOCALIZED PROPERTIES AND METHODS FOR FORMING SAME
Publication number: 20180002238Abstract: Ceramic matrix composite articles include, for example a first plurality of plies of ceramic fibers in a ceramic matrix defining a first extent, and a local at least one second ply in said ceramic matrix defining a second extent on and/or in said first plurality of plies with the second extent being less than said first extent. The first plurality of plies has a first property, the at least one second ply has at least one second property, and said first property being different from said at least one second property. The different properties may include one or more different mechanical (stress/strain) properties, one or more different thermal conductivity properties, one or more different electrical conductivity properties, one or more different other properties, and combinations thereof.Type: ApplicationFiled: July 1, 2016Publication date: January 4, 2018Applicant: GENERAL ELECTRIC COMPANYInventors: Matthew HOCKEMEYER, Jason David Shapiro, K.M.K. Genghis Khan, James Scott Vartuli, Daniel Gene Dunn, Shatil Sinha, Douglas Decesare, Suresh Subramanian -
Publication number: 20170249412Abstract: A system including a configurable memory controller, a memory interface, and a configurable high speed communications fabric comprising a plurality of interconnect stations arranged in an array and operable to implement a plurality of pipelined buses, where the configurable memory controller is operably coupled to the configurable high speed communications fabric using a first interconnect station of the plurality of interconnect stations, where the memory interface is operably coupled to the configurable high speed communications fabric using a second interconnect station of the plurality of interconnect stations, where the plurality of interconnect stations are configured to satisfy a timing requirement of the memory interface, and where the configurable memory controller, the memory interface, and the configurable high speed communications fabric are associated with a configurable integrated circuit.Type: ApplicationFiled: May 12, 2017Publication date: August 31, 2017Applicant: Agate Logic Inc.Inventors: Suresh Subramanian, Mukunda Krishnappa, Pohrong R. Chu, Jason Golbus, Dana L. How