Patents by Inventor Kalaga Murali Krishna
Kalaga Murali Krishna 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: 9954580Abstract: A power transfer system is provided. The power transfer system includes a field-focusing element including a dielectric material. The dielectric material includes a ceramic material and a polymer material. The ceramic material includes an oxide compound comprising titanium and the polymer material includes a resin.Type: GrantFiled: July 27, 2012Date of Patent: April 24, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Kalaga Murali Krishna, Lohit Matani
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Patent number: 9881732Abstract: A contactless power transfer system is proposed. The power transfer system comprises a field-focusing element comprising a dielectric material. The dielectric material includes an oxide material including (Mg1-xSrx)yTiO(2+y), wherein x can vary between the value of zero and 1 such that 0?x?1, and y can be 0, 1, or 2. A power transfer system further including a first coil coupled to a power source and a second coil coupled to a load is disclosed. In this system, the field-focusing element including the dielectric material is disposed between the first coil and the second coil.Type: GrantFiled: July 27, 2012Date of Patent: January 30, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Kalaga Murali Krishna, Lohit Matani
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Publication number: 20160354729Abstract: A selective membrane, for example an ultrafiltration, nanofiltration or reverse osmosis membrane, has a layer comprising flakes of graphene, graphene oxide, reduced graphene oxide, or functionalized variations. The flakes may form a layer themselves, be embedded in the surface of a layer of another compound, or be dispersed in a layer of another compound. In some cases, the flakes functions as a selective membrane. In other cases, the flakes modify the properties of a membrane, for example by making the membrane more hydrophilic. In yet other cases, the flakes function as a bonding agent between layers of a membrane.Type: ApplicationFiled: April 12, 2013Publication date: December 8, 2016Applicant: General Electric CompanyInventors: Kalaga Murali KRISHNA, Arjun BHATTACHARYYA, Rebika Mayanglambam DEVI, Madhuri PHADKE
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Publication number: 20160215630Abstract: A coating, a coated turbine component, and a coating process are disclosed. The coating includes an epoxy-polyamide structure formed from a coating composition comprising a phenolic resin and a curing agent, the phenolic resin comprising a bisphenol F constituent and an epichlorohydrin constituent. The coating composition is solvent-free or substantially solvent-free. The cured coating is cross-linked from curing below 120° C., from curing using infrared-microwave radiation, or a combination thereof. The coated turbine component includes a surface and the coating. The coating process includes applying the coating and curing the coating.Type: ApplicationFiled: July 15, 2013Publication date: July 28, 2016Inventors: Kalaga Murali KRISHNA, Padmaja PARAKALA, Surinder Singh PABLA
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Patent number: 9368774Abstract: An electrolyte separator structure is provided. The electrolyte separator structure comprises a graded integral structure, wherein the structure comprises an ion-conducting first ceramic at a first end and an electrically insulating second ceramic at a second end, wherein the difference in the coefficient of thermal expansion of the ion-conducting first ceramic and the electrically insulating second ceramic is less than or equal to about 5 parts per million per degrees Centigrade, and wherein at least one of the first ceramic or the second ceramic comprises a strengthening agent. Method of making the ion-separator structure is provided. Electrochemical cells comprising the ion-separator structure and method of making the electrochemical cell using the ion-separator structure are also provided.Type: GrantFiled: March 24, 2010Date of Patent: June 14, 2016Assignee: General Electric CompanyInventors: Sundeep Kumar, Mohamed Rahmane, Mohandas Nayak, Arunabh Basak, Kalaga Murali Krishna, Atanu Saha
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Patent number: 9174876Abstract: A contactless power transfer system is proposed. The power transfer system comprises a field-focusing element comprising a dielectric material. The dielectric material comprises a composition that is selected from the family of (Ba,Sr)TiO3 or CaCu3Ti4O12. The compositions of the (Ba, Sr)TiO3 include the materials such as Ca1-x-yBaxSryTi1-zCrzO3-?Np, wherein 0<x<1; 0<y<1; 0?z?0.01; 0???1; and 0?p?1. The compositions of the CaCu3Ti4O12 include the materials such as Ca1-x-yBaxSry(Ca1-zCuz)Cu2Ti4-?Al?O12-0.5?, wherein 0?x<0.5; 0?y<0.5; 0?z<1; and 0???0.1.Type: GrantFiled: May 12, 2010Date of Patent: November 3, 2015Assignee: General Electric CompanyInventors: Kalaga Murali Krishna, Lohit Matani, Adnan Kutubuddin Bohori, Suma Memana Narayana Bhat, Somakumar Ramachandrapanicker
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Patent number: 9027236Abstract: A resonator in the Swiss-roll structure, method of making the resonator structure and the system employing the resonator are disclosed. The resonator includes a plurality of layers, including a ceramic layer and a metallic layer. The ceramic and metallic layers are configured in a Swiss-roll form such that the neighboring ceramic layers are separated by the metallic layer. Further, the ceramic layer includes materials that have a dielectric constant of at least about 10 and dielectric loss tangent less than about 0.01 in the frequency range of about 1 KHz to about 100 MHz. The method of forming the resonator includes the steps of disposing a metallic layer, depositing a dielectric ceramic layer, and forming a Swiss-roll structure of the metallic and ceramic layers. Alternate method includes swaging the dielectric material filled metal tubes and forming into Swiss-rolls.Type: GrantFiled: May 31, 2011Date of Patent: May 12, 2015Assignee: General Electric CompanyInventors: Kalaga Murali Krishna, Sudhakar Eddula Reddy, Lohit Matani
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Publication number: 20150080282Abstract: Cleansing washes for compressor sections of turbines include one or more surfactants, one or more corrosion inhibiting dispersants, and one or more balance materials selected from a group consisting of water and solvents. The one or more surfactants and the one or more corrosion inhibiting dispersants combine to comprise from about 1 weight percent to about 20 weight percent, as actives, of the cleansing wash.Type: ApplicationFiled: September 17, 2013Publication date: March 19, 2015Applicant: General Electric CompanyInventors: Kalaga Murali Krishna, Rebika Mayanglambam Devi, Padmaja Parakala, Surinder Singh Pabla
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Patent number: 8968609Abstract: A contactless power transfer system is proposed. The power transfer system comprises a field-focusing element comprising a dielectric material. The dielectric material comprises a composition that is selected from the family of (Ba,Sr)TiO3 or CaCu3Ti4O12. The compositions of the (Ba,Sr)TiO3 include the materials such as Ca1-x-yBaxSryTi1-zCrzO3-?Np, wherein 0<x<1; 0<y<1; 0?z?0.01; 0???1; and 0?p?1. The compositions of the CaCu3Ti4O12 include the materials such as Ca1-x-yBaxSry (Ca1-zCuz)Cu2Ti4-?Al?O12-0.5?, wherein 0?x<0.5; 0?y<0.5; 0?z?1; and 0???0.1.Type: GrantFiled: May 12, 2010Date of Patent: March 3, 2015Assignee: General Electric CompanyInventors: Kalaga Murali Krishna, Jay Chakraborty, Lohit Matani, Adnan Kutubuddin Bohori, Suma Memana Narayana Bhat, Somakumar Ramachandrapanicker
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Patent number: 8968603Abstract: A dielectric material is provided. The material includes Ca1-x-yBaxSryTi1 -zCrzO3-?Ap, wherein A is nitrogen, fluorine, or combinations thereof; x and y can vary between the value of zero and one such that 0<x<1 and 0<y<1; z can vary between the value of zero and 0.01 such that 0?z?0.01; and ? and p can vary between the value of zero and one such that 0???1 and 0?p?1, with a proviso that z and p are not simultaneously zero. A dielectric component including the dielectric material and a system including the dielectric component are provided.Type: GrantFiled: March 30, 2011Date of Patent: March 3, 2015Assignee: General Electric CompanyInventors: Kalaga Murali Krishna, Lohit Matani
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Publication number: 20150003996Abstract: Coatings includes about 60 weight percent to about 90 weight percent of one or more fluorinated polymers, about 1 weight percent to about 7 weight percent of one or more erosion resistant fillers about 3 weight percent to about 9 weight percent of one or more anticorrosive pigments, about 1 weight percent to about 4 weight percent of one or more thixotropic agents, and about 1 weight percent to about 4 weight percent of one or more porosity reducing filler materials.Type: ApplicationFiled: July 1, 2013Publication date: January 1, 2015Inventors: Kalaga Murali Krishna, Padmaja Parakala, Surinder Singh Pabla, Krishnamurthy Anand
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Publication number: 20150004362Abstract: Multilayered coatings include an adhesion base layer that can adhere to a metal substrate, and a top surface layer that has a surface roughness of less than or equal to about Ra 0.0254 ?m, wherein at least one of the layers comprises a diamond-like carbon.Type: ApplicationFiled: July 1, 2013Publication date: January 1, 2015Inventors: Kalaga Murali Krishna, Padmaja Parakala, Surinder Singh Pabla, Krishnamurthy Anand
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Patent number: 8739604Abstract: A gas sensor is disclosed. The gas sensor includes a gas sensing layer, at least one electrode, an adhesion layer, and a response modification layer adjacent to said gas sensing layer and said layer of adhesion. A system having an exhaust system and a gas sensor is also disclosed. A method of fabricating the gas sensor is also disclosed.Type: GrantFiled: December 20, 2007Date of Patent: June 3, 2014Assignee: Amphenol Thermometrics, Inc.Inventors: Kalaga Murali Krishna, Geetha Karavoor, John Patrick Lemmon, Jun Cui, Vinayak Tilak, Mohandas Nayak, Ravikumar Hanumantha
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Publication number: 20140069988Abstract: The present disclosure generally relates to methods of using active braze techniques in high temperature rechargeable batteries. In some specific embodiments, the present disclosure relates to a method of sealing a portion of an insulated alpha alumina or spinel collar and a metal ring of a sodium metal halide battery.Type: ApplicationFiled: September 12, 2012Publication date: March 13, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Sundeep KUMAR, Raghavendra ADHARAPURAPU, Mamatha NAGESH, Kalaga Murali KRISHNA, Jeffrey KERCHNER, Laurent CRETEGNY, Mohamed RAHMANE
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Publication number: 20140028105Abstract: A contactless power transfer system is proposed. The power transfer system comprises a field-focusing element comprising a dielectric material. The dielectric material includes an oxide material including (Mg1?xSrx)yTiO(2+y), wherein x can vary between the value of zero and 1 such that 0?x?1, and y can be 0, 1, or 2. A power transfer system further including a first coil coupled to a power source and a second coil coupled to a load is disclosed. In this system, the field-focusing element including the dielectric material is disposed between the first coil and the second coil.Type: ApplicationFiled: July 27, 2012Publication date: January 30, 2014Inventors: Kalaga Murali KRISHNA, Lohit MATANI
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Patent number: 8586495Abstract: A dielectric material is provided. The material includes ?[Ca1-x-yBaxSry(Ca1-zCuz)Cu2-pLa2p/3Ti4-qMqO12-?]+(1??)[BarSr1-rTiO3], wherein M is aluminum, chromium, zirconium, or combinations thereof; x can vary between the value of zero and 0.1 such that 0?x?0; y, z, and r can vary between the value of zero and 1 such that 0?y?1, 0?z?1, and 0?r?1; p and q can vary between the value of zero and 0.1 such that 0?p?0.1 and 0?q?0.1; ? can vary between the value of zero and 0.05 such that 0???0.05; and ? can vary between the value of 0.5 and 1 such that 0.5???1, with a proviso that when x=y=0 and z=?=1, p and q are greater than zero; and when x=y=z=0, p and q are not simultaneously zero. A dielectric component including the dielectric material and a system including the dielectric component are provided.Type: GrantFiled: March 30, 2011Date of Patent: November 19, 2013Assignee: General Electric CompanyInventors: Kalaga Murali Krishna, Lohit Matani
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Publication number: 20130193770Abstract: A power transfer system is provided. The power transfer system includes a field-focusing element including a dielectric material. The dielectric material includes a ceramic material and a polymer material. The ceramic material includes an oxide compound comprising titanium and the polymer material includes a resin.Type: ApplicationFiled: July 27, 2012Publication date: August 1, 2013Inventors: Kalaga Murali Krishna, Lohit Matani
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Publication number: 20120306280Abstract: A resonator in the Swiss-roll structure, method of making the resonator structure and the system employing the resonator are disclosed. The resonator includes a plurality of layers, including a ceramic layer and a metallic layer. The ceramic and metallic layers are configured in a Swiss-roll form such that the neighboring ceramic layers are separated by the metallic layer. Further, the ceramic layer includes materials that have a dielectric constant of at least about 10 and dielectric loss tangent less than about 0.01 in the frequency range of about 1 KHz to about 100 MHz. The method of forming the resonator includes the steps of disposing a metallic layer, depositing a dielectric ceramic layer, and forming a Swiss-roll structure of the metallic and ceramic layers. Alternate method includes swaging the dielectric material filled metal tubes and forming into Swiss-rolls.Type: ApplicationFiled: May 31, 2011Publication date: December 6, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Kalaga Murali Krishna, Sudhakar Eddula Reddy, Lohit Matani
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Patent number: 8189633Abstract: A polycrystalline transparent ceramic article including lutetium is presented. The article includes an oxide with a formula of ABO3, having type A lattice sites and type B lattice sites. The lattice site A may further comprise a plurality of elements, in addition to lutetium. Type B lattice site includes aluminum. An imaging device, a laser assembly, and a scintillator including the lutetium-based article is provided. A method of making the above article is also provided.Type: GrantFiled: January 21, 2010Date of Patent: May 29, 2012Assignee: General Electric CompanyInventors: Kalaga Murali Krishna, Venkat Subramaniam Venkataramani, Mohan Manoharan
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Publication number: 20110281718Abstract: A dielectric material is provided. The material includes ?[Ca1-x-yBaxSry(Ca1-zCuz)Cu2-pLa2p/3Ti4-qMqO12-?]+(1??)[BarSr1-rTiO3], wherein M is aluminum, chromium, zirconium, or combinations thereof; x can vary between the value of zero and 0.1 such that 0?x?0; y, z, and r can vary between the value of zero and 1 such that 0?y?1, 0?z?1, and 0?r?1; p and q can vary between the value of zero and 0.1 such that 0?p?0.1 and 0?q?0.1; ? can vary between the value of zero and 0.05 such that 0??Z?0.05; and ? can vary between the value of 0.5 and 1 such that 0.5???1, with a proviso that when x=y=0 and z=?=1, p and q are greater than zero; and when x=y=z=0, p and q are not simultaneously zero. A dielectric component including the dielectric material and a system including the dielectric component are provided.Type: ApplicationFiled: March 30, 2011Publication date: November 17, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Kalaga Murali Krishna, Lohit Matani