Patents by Inventor Sonia Tulyani
Sonia Tulyani 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: 10760858Abstract: A heat exchanger is disclosed for transferring heat from a first material to a second material comprises a structural heat transfer member having a first surface in contact with the first material and a second surface in contact with the second material. The heat exchanger also has a coating on the first surface, the second surface, or on the first and second surfaces. The coating comprises filler particles dispersed in a polymer resin matrix.Type: GrantFiled: July 31, 2015Date of Patent: September 1, 2020Assignee: CARRIER CORPORATIONInventors: Wayde R. Schmidt, Scott Alan Eastman, Alexander Norman, Sonia Tulyani, Jodi A. Vecchiarelli, Caitlyn McIntyre Thorpe
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Patent number: 10501378Abstract: An embodiment of an article includes a substrate and a conformal coating. The conformal coating includes a first particulate layer between a first matrix layer and a second matrix layer. The first particulate layer includes a first plurality of ordered inorganic particles spaced and distributed substantially uniformly throughout the first particulate layer, and a ceramic matrix material disposed between individual ones of the first plurality of particles.Type: GrantFiled: February 24, 2015Date of Patent: December 10, 2019Assignee: UNITED TECHNOLOGIES CORPORATIONInventors: Wayde R. Schmidt, Sonia Tulyani
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Patent number: 10450643Abstract: A method of joining includes bringing a bulk metallic glass (BMG) material to a temperature lower than the crystallization temperature of the BMG material and depositing the BMG material onto a first substrate with interlock surface features such that the BMG material interlocks with the interlock surface features of the substrate. The method includes joining a second substrate to the BMG material, wherein the second substrate includes interlock surface features such that the BMG material interlocks with the interlock surface features of both the first and second substrates, joining the first and second substrates together to produce a fully amorphous joint between the first and second substrates.Type: GrantFiled: July 13, 2016Date of Patent: October 22, 2019Assignee: Hamilton Sundstrand CorporationInventors: Neal Magdefrau, Paul Sheedy, Sonia Tulyani
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Publication number: 20180306486Abstract: An air-temperature conditioning system includes a frost resistant heat exchanger that has an exterior heat transfer surface covered by a hydrophobic coating. An anti-frost device of the air-temperature conditioning system is constructed and arranged to mitigate frost accumulation on the heat exchanger by leveraging characteristics of the hydrophobic coating.Type: ApplicationFiled: October 18, 2016Publication date: October 25, 2018Inventors: Abbas A. Alahyari, Jack Leon Esformes, Thomas D. Radcliff, Sonia Tulyani, Abdelrahman Elsherbini
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Publication number: 20180016671Abstract: A method of joining includes bringing a bulk metallic glass (BMG) material to a temperature lower than the crystallization temperature of the BMG material and depositing the BMG material onto a first substrate with interlock surface features such that the BMG material interlocks with the interlock surface features of the substrate. The method includes joining a second substrate to the BMG material, wherein the second substrate includes interlock surface features such that the BMG material interlocks with the interlock surface features of both the first and second substrates, joining the first and second substrates together to produce a fully amorphous joint between the first and second substrates.Type: ApplicationFiled: July 13, 2016Publication date: January 18, 2018Inventors: Neal Magdefrau, Paul Sheedy, Sonia Tulyani
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Patent number: 9746067Abstract: There is a gear set. The gear set has a) a first gear having a first surface and b) an intermeshing second gear having a second surface. The first and second surfaces each, independently, have an isotropic arithmetic mean roughness, Ra, of about 0.0762 micrometers/3 microinches or less and are lubricated. There is also a method for increasing the contact surface-fatigue life of a gear set.Type: GrantFiled: December 2, 2005Date of Patent: August 29, 2017Assignee: United Technologies CorporationInventors: Clark V. Cooper, Sonia Tulyani, Edward J. Karedes, Jefferi J. Covington, Alexander Staroselsky, Harsh Vinayak
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Publication number: 20170234629Abstract: A heat exchanger is disclosed for transferring heat from a first material to a second material comprises a structural heat transfer member having a first surface in contact with the first material and a second surface in contact with the second material. The heat exchanger also has a coating on the first surface, the second surface, or on the first and second surfaces. The coating comprises filler particles dispersed in a polymer resin matrix.Type: ApplicationFiled: July 31, 2015Publication date: August 17, 2017Inventors: Wayde R. Schmidt, Scott Alan Eastman, Alexander Norman, Sonia Tulyani, Jodi A. Vecchiarelli, Caitlyn McIntyre Thorpe
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Publication number: 20170128981Abstract: A method of forming a bulk metallic glass (BMG) cladding includes bringing a BMG material to a temperature lower than or equal to the crystallization temperature of the BMG material, and at least in some embodiments greater than or equal to the glass transition temperature of the BMG material and. The method also includes depositing the BMG material onto a substrate with interlock surface features such that the BMG material interlocks with the interlock surface features of the substrate.Type: ApplicationFiled: November 9, 2015Publication date: May 11, 2017Applicant: DELAVAN INCInventors: Paul Sheedy, Sonia Tulyani, Neal Magdefrau
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Publication number: 20160244372Abstract: An embodiment of an article includes a substrate and a conformal coating. The conformal coating includes a first particulate layer between a first matrix layer and a second matrix layer. The first particulate layer includes a first plurality of ordered inorganic particles spaced and distributed substantially uniformly throughout the first particulate layer, and a ceramic matrix material disposed between individual ones of the first plurality of particles.Type: ApplicationFiled: February 24, 2015Publication date: August 25, 2016Inventors: Wayde R. Schmidt, Sonia Tulyani
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Patent number: 9221720Abstract: A method for depositing a protective coating on a complex shaped substrate includes the steps of: (1) dipping a complex shaped substrate into a slurry to form a base coat thereon, the slurry comprising an aqueous solution, at least one refractory metal oxide, and at least one transient fluid additive present in an amount of about 0.1 percent to 10 percent by weight of the slurry; (2) curing the dipped substrate; (3) dipping the substrate into a precursor solution to form a top barrier coat thereon; and (4) heat treating the dipped, cured substrate to form a protective coating.Type: GrantFiled: March 1, 2006Date of Patent: December 29, 2015Assignee: UNITED TECHNOLOGIES CORPORATIONInventors: Sonia Tulyani, Tania Bhatia, John G. Smeggil
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Publication number: 20130089811Abstract: A seal assembly includes first and second solid oxide fuel cell components and a self-healing glass between the components. The glass seal includes 35-60 wt % alkaline earth oxide, 2-15 wt % boron oxide, and 25-62 wt % silicone oxide.Type: ApplicationFiled: September 21, 2009Publication date: April 11, 2013Inventors: John E. Holowczak, Sonia Tulyani, Elllen Y. Sun, Jean Yamanis
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Patent number: 8057847Abstract: A method for making a membrane electrode assembly includes the steps of providing a membrane electrode assembly including an anode including a hydrogen oxidation catalyst; a cathode; a membrane disposed between the anode and the cathode; and depositing a peroxide decomposition catalyst in at least one position selected from the group consisting of the anode, the cathode, a layer between the anode and the membrane and a layer between the cathode and the membrane wherein the peroxide decomposition catalyst has selectivity when exposed to hydrogen peroxide toward reactions which form benign products from the hydrogen peroxide. The peroxide decomposition catalyst can also be positioned within the membrane. Also disclosed is a power-generating fuel cell system including such a membrane electrode assembly, and a process for operating such a fuel cell system.Type: GrantFiled: October 31, 2003Date of Patent: November 15, 2011Assignee: UTC Fuel Cells, LLCInventors: James A. Leistra, Ned E. Cipollini, Wayde R. Schmidt, Jared B. Hertzberg, Chi H. Paik, Thomas D. Jarvi, Timothy W. Patterson, Sonia Tulyani
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Patent number: 7977004Abstract: A seal assembly for a solid oxide fuel cell stack, includes at least two fuel cell stack components having opposed surfaces and a seal member disposed between the surfaces, wherein the seal member is a compliant seal member that is mechanically compliant in both in-plane and out-of-plane directions relative to the surfaces. The seal member is advantageously formed of one or more substantially continuous fibers. Further, preferred materials for the seal member are provided which advantageously allow for a desired level of impermeability while preventing contamination of the fuel cell stack.Type: GrantFiled: July 18, 2003Date of Patent: July 12, 2011Assignee: UTC Fuel Cells, LLC.Inventors: Sunil G. Warrier, Jean Yamanis, Sonia Tulyani, Raymond C. Benn
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Patent number: 7871957Abstract: A durable catalyst support/catalyst is capable of extended water gas shift operation under conditions of high temperature, pressure, and sulfur levels. The support is a homogeneous, nanocrystalline, mixed metal oxide of at least three metals, the first being cerium, the second being Zr, and/or Hf, and the third importantly being Ti, the three metals comprising at least 80% of the metal constituents of the mixed metal oxide and the Ti being present in a range of 5% to 45% by metals-only atomic percent of the mixed metal oxide. The mixed metal oxide has an average crystallite size less than 6 nm and forms a skeletal structure with pores whose diameters are in the range of 4-9 nm and normally greater than the average crystallite size. The surface area of the skeletal structure per volume of the material of the structure is greater than about 240 m2/cm3. The method of making and use are also described.Type: GrantFiled: May 15, 2007Date of Patent: January 18, 2011Assignee: UTC Power CorporationInventors: Rhonda R. Willigan, Thomas Henry Vanderspurt, Sonia Tulyani, Rakesh Radhakrishnan, Susanne Marie Opalka, Sean C. Emerson
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Publication number: 20100119718Abstract: A method for depositing a protective coating on a complex shaped substrate includes the steps of: (1) dipping a complex shaped substrate into a slurry to form a base coat thereon, the slurry comprising an aqueous solution, at least one refractory metal oxide, and at least one transient fluid additive present in an amount of about 0.1 percent to 10 percent by weight of the slurry; (2) curing the dipped substrate; (3) dipping the substrate into a precursor solution to form a top barrier coat thereon; and (4) heat treating the dipped, cured substrate to form a protective coating.Type: ApplicationFiled: March 1, 2006Publication date: May 13, 2010Inventors: Sonia Tulyani, Tania Bhatia, John G. Smeggil
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Publication number: 20090324930Abstract: An environmental coating system for silicon based substrates wherein a porous intermediate barrier layer having an elastic modulus of about 30 to 150 GPa is provided between a silicon metal containing bondcoat and a ceramic top environmental barrier layer.Type: ApplicationFiled: June 25, 2008Publication date: December 31, 2009Applicant: UNITED TECHNOLOGIES CORPORATIONInventors: Sonia Tulyani, Tania Bhatia
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Publication number: 20090254286Abstract: There is a method for modeling the surface fatigue life of a mechanical component. The method has the following steps: a) modeling the surface fatigue life of the mechanical component on an atomistic scale to form an atomistic model, b) modeling the surface fatigue life of the mechanical component on a mesoscale to form a mesoscale model, c) modeling the surface fatigue life of the mechanical component on a macroscale to form a macroscale model, and d) testing the surface fatigue life of the mechanical component. Feedback from the macroscale model is employed at least once to validate the atomistic model. Feedback from the macroscale model is employed at least once to validate the mesoscale model. Feedback from the testing is employed at least once to validate the macroscale model. There is also an interactive, multiscale model for prediction surface fatigue life or degradation rate for a mechanical component.Type: ApplicationFiled: December 2, 2005Publication date: October 8, 2009Applicant: PRATT & WHITNEYInventors: Sonia Tulyani, Alexander Staroselsky, Igor I. Fedchenia, Hongmei Wen, Clark V. Cooper, Susanne M. Opalka
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Publication number: 20090107275Abstract: There is a gear set. The gear set has a) a first gear having a first surface and b) an intermeshing second gear having a second surface. The first and second surfaces each, independently, have an isotropic arithmetic mean roughness, Ra, of about 3 microinches or less and are lubricated. There is also a method for increasing the contact surface-fatigue life of a gear set.Type: ApplicationFiled: December 2, 2005Publication date: April 30, 2009Inventors: Clark V. Cooper, Sonia Tulyani, Edward J. Karedes, Jefferi J. Covington, Alexander Staroselsky, Harsh Vinayak
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Publication number: 20070264174Abstract: A durable catalyst support/catalyst is capable of extended water gas shift operation under-conditions of high temperature, pressure, and sulfur levels. The support is a homogeneous, nanocrystalline, mixed metal oxide of at least three metals, the first being cerium, the second being Zr, and/or Hf, and the third importantly being Ti, the three metals comprising at least 80% of the metal constituents of the mixed metal oxide and the Ti being present in a range of 5% to 45% by metals-only atomic percent of the mixed metal oxide. The mixed metal oxide has an average crystallite size less than 6 nm and forms a skeletal structure with pores whose diameters are in the range of 4-9 nm and normally greater than the average crystallite size. The surface area of the skeletal structure per volume of the material of the structure is greater than about 240 m2/cm3. The method of making and use are also described.Type: ApplicationFiled: May 15, 2007Publication date: November 15, 2007Inventors: Rhonda Willigan, Thomas Vanderspurt, Sonia Tulyani, Rakesh Radhakrishnan, Susanne Opalka, Sean Emerson
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Publication number: 20070207330Abstract: A method for depositing a protective coating upon a substrate includes the steps of dipping a substrate into a slurry composed of an aqueous solution, at least one refractory metal oxide, and at least one transient fluid additive present in an amount of about 0.1 percent to 10 percent by weight of the slurry; heat treating the substrate; and cooling the substrate to form a protective coating thereon.Type: ApplicationFiled: March 1, 2006Publication date: September 6, 2007Inventors: Sonia Tulyani, John Smeggil, Tania Bhatia