Patents by Inventor Anil Raj Duggal

Anil Raj Duggal 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: 20200127520
    Abstract: An article is presented. The article includes one or more ceramic insulators having a plurality of recesses including a first portion having a first set of recesses of the plurality of recesses and a second portion having a second set of recesses of the plurality of recesses. At least a portion of a first conductor and at least a portion of a first cooling channel are overlappingly disposed in a recess of the first set of recesses. At least a portion of a second conductor and at least a portion of a second cooling channel are disposed in at least one recess of the second set of recesses wherein the at least a portion of the second cooling channel offsets from the at least a portion of the second conductor. A system including the article is also presented.
    Type: Application
    Filed: October 23, 2018
    Publication date: April 23, 2020
    Inventors: Jie Jerry Liu, Anil Raj Duggal
  • Publication number: 20200091791
    Abstract: An electric machine includes a rotor assembly having a rotor core that extends in an axial direction and a stator assembly surrounding and coaxial with the rotor assembly. The stator assembly includes a stator core having slots extending in a radial direction into an inner surface of the stator core and extending axially from a first end surface to a second end surface of the stator core. The stator assembly includes stator coil windings disposed within the respective slots of the stator core and a first electrically insulating conformal coating disposed between the stator core and the stator coil windings. The conformal coating includes a polymer matrix impregnated with an effective amount of thermally conductive ceramic materials, above a percolation threshold, that form continuous thermal pathways across a thickness of the first coating.
    Type: Application
    Filed: November 21, 2019
    Publication date: March 19, 2020
    Inventors: Weijun Yin, Anil Raj Duggal
  • Publication number: 20190372441
    Abstract: A method of forming a coating on a component of an electrical machine is presented. The method includes coating a surface of the component with a ceramic material, via an electrophoretic process, to form a first coating. The method further includes contacting the first coating deposited by the electrophoretic process with a polymeric material to form a second coating. The method furthermore includes curing or melting the polymeric material in the second coating to form the coating including the ceramic material dispersed in a polymer matrix.
    Type: Application
    Filed: May 30, 2018
    Publication date: December 5, 2019
    Inventors: Weijun Yin, Anil Raj Duggal, Aharon Yakimov, Holly Ann Comanzo, Vijay Kumar Srivastava, Mohandas Nayak, Hao Huang, Oltea Puica Siclovan, Paul Michael Smigelski, JR.
  • Patent number: 10491071
    Abstract: A method of manufacturing an electric machine includes conformally coating a portion of a stator assembly of the electric machine via an electrophoretic process using a coating slurry. The coating slurry includes a polymer precursor loaded with thermally conductive ceramic materials. The method includes curing the polymer precursor of the coated slurry to secure the thermally conductive ceramic materials within a polymer matrix to form a conformal coating on the portion of the stator assembly. The method also includes loading the stator coils into slots of the stator core to form the stator assembly, wherein the conformal coating electrically insolates the stator coils from the stator core of the stator assembly, and wherein an effective amount of thermally conductive ceramic materials, above a percolation threshold, are present in the conformal coating to form continuous thermal pathways across a thickness of the conformal coating.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: November 26, 2019
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Weijun Yin, Anil Raj Duggal
  • Publication number: 20180301244
    Abstract: A method includes forming one or more cores, wherein each of the one or more cores has a cross section corresponding to a conductor to be subsequently formed, forming an insulator around the one or more cores, removing the one or more cores to expose one or more recesses within the insulator, and forming one or more conductors in at least one of the one or more recesses of the insulator such that the cross sections of the one or more conductors conform to an interior surface of the one or more recesses in the insulator.
    Type: Application
    Filed: April 17, 2017
    Publication date: October 18, 2018
    Inventors: Christopher Michael Calebrese, Jeffrey S. Sullivan, Qin Chen, Benjamin Hale Winkler, Kevin Warner Flanagan, Anil Raj Duggal
  • Publication number: 20180233981
    Abstract: An electric machine includes a rotor assembly having a rotor core that extends in an axial direction and a stator assembly surrounding and coaxial with the rotor assembly. The stator assembly includes a stator core having slots extending in a radial direction into an inner surface of the stator core and extending axially from a first end surface to a second end surface of the stator core. The stator assembly includes stator coil windings disposed within the respective slots of the stator core and a first electrically insulating conformal coating disposed between the stator core and the stator coil windings. The conformal coating includes a polymer matrix impregnated with an effective amount of thermally conductive ceramic materials, above a percolation threshold, that form continuous thermal pathways across a thickness of the first coating.
    Type: Application
    Filed: February 16, 2017
    Publication date: August 16, 2018
    Inventors: Weijun Yin, Anil Raj Duggal
  • Patent number: 9871154
    Abstract: A photovoltaic device is presented. The photovoltaic device includes a layer stack; and an absorber layer is disposed on the layer stack. The absorber layer includes cadmium, tellurium, and selenium. A semiconductor layer is further disposed on the absorber layer, wherein a valence band offset between the semiconductor layer and the absorber layer is less than about 1.3 electron Volts, and a band gap of the semiconductor layer is in a range from about 1.2 electron Volts to about 3.5 electron Volts.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: January 16, 2018
    Assignee: First Solar, Inc.
    Inventors: Anil Raj Duggal, Joseph John Shiang, William Hullinger Huber, Adam Fraser Halverson
  • Publication number: 20140373908
    Abstract: A photovoltaic device is presented. The photovoltaic device includes a layer stack; and an absorber layer is disposed on the layer stack. The absorber layer includes cadmium, tellurium, and selenium. A semiconductor layer is further disposed on the absorber layer, wherein a valence band offset between the semiconductor layer and the absorber layer is less than about 1.3 electron Volts, and a band gap of the semiconductor layer is in a range from about 1.2 electron Volts to about 3.5 electron Volts.
    Type: Application
    Filed: June 21, 2013
    Publication date: December 25, 2014
    Applicant: First Solar Inc.
    Inventors: Anil Raj Duggal, Joseph John Shiang, William Hullinger Huber, Adam Fraser Halverson
  • Patent number: 8816635
    Abstract: An electrochemical cell includes an anode connectable to a current tap and a charging medium in electrical contact with the anode. A switching device is configured to stop a charging operation of the electrochemical cell upon activation by the charging medium.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: August 26, 2014
    Assignee: General Electric Company
    Inventors: Chandra Sekher Yerramalli, Badri Narayan Ramamurthi, Reza Sarrafi-Nour, Andrew Philip Shapiro, Anil Raj Duggal
  • Patent number: 8779726
    Abstract: A passive battery charging control system for charging a battery is devoid of active electrical components. The passive battery charging control system includes one or more passive electrical control elements configured to limit the charging state of the battery.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: July 15, 2014
    Assignee: General Electric Company
    Inventors: Anil Raj Duggal, Herman Lucas Norbert Wiegman, Gregory John Parker
  • Patent number: 8674212
    Abstract: An assembly is provided and includes at least one solar cell comprising a photovoltaic element having an upper surface for receiving and absorbing radiation, a lower surface for coupling to an article, a first end and a second end. The solar cell further includes at least one magnet attached to the first end of the photovoltaic element. The assembly further includes an article comprising a substrate, and a magnetic film disposed on the substrate and defining at least one receptor site. Each solar cell is disposed at a respective receptor site.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: March 18, 2014
    Assignee: General Electric Company
    Inventors: William Hullinger Huber, Charles Stephen Korman, Raymond Albert Fillion, Anil Raj Duggal, William Edward Burdick, Jr.
  • Patent number: 8652689
    Abstract: An energy storage device includes a housing having an interior surface defining a volume and a plurality of solid electrolyte elements disposed in the volume. Each solid electrolyte element has a first surface that defines at least a portion of a first, cathodic chamber, and a second surface that defines a second, anodic chamber. A plurality of individual anodic chambers are thus provided, at least one of which is evacuated below atmospheric pressure. A majority of anodic chambers can be spaced from one another in a manner that provides a substantially uniform reaction rate throughout the cathodic chamber.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: February 18, 2014
    Assignee: General Electric Company
    Inventors: Chandra Sekher Yerramalli, Anil Raj Duggal, Andrew Philip Shapiro, Mohamed Rahmane, Reza Sarrafi-Nour, Gregory John Parker, Alireza Namazifard, Badri Narayan Ramamurthi
  • Patent number: 8512809
    Abstract: A method of processing a multilayer film is provided. The method includes providing a substrate film having a substrate film first surface and a substrate film second surface. The method also includes providing a barrier layer adjacent to the substrate film second surface. The barrier layer has at least one opening allowing fluid communication between the substrate film and an outer surface of the barrier layer. Further, the method includes contacting the substrate film first surface with a first reactant and finally contacting the outer surface of the barrier layer with a second reactant, said second reactant being reactive with said first reactant. The method of contacting the substrate film first surface to the first reactant and contacting the outer surface of the barrier layer to the second reactant is carried out under conditions under which reaction between said first reactant and the second reactant results in a formation of a reaction layer.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: August 20, 2013
    Assignee: General Electric Company
    Inventors: Christian Maria Anton Heller, Anil Raj Duggal, Dennis Joseph Coyle, Min Yan, Ahmet Gün Erlat, Ri-an Zhao
  • Publication number: 20130082642
    Abstract: An electrochemical cell includes an anode connectable to a current tap and a charging medium in electrical contact with the anode. A switching device is configured to stop a charging operation of the electrochemical cell upon activation by the charging medium.
    Type: Application
    Filed: September 30, 2011
    Publication date: April 4, 2013
    Inventors: Chandra Sekher Yerramalli, Badri Narayan Ramamurthi, Reza Sarrafi-Nour, Andrew Philip Shapiro, Anil Raj Duggal
  • Patent number: 8350470
    Abstract: An encapsulation structure comprises a first barrier layer, and an electroluminescence device configured to be coupled to the first barrier layer and comprising a substrate and an electroluminescence element both defining a lateral side. The electroluminescence element comprises a first electrode disposed on the substrate, a second electrode, and an organic light-emitting layer disposed between the first and second electrodes. Further, the encapsulation structure comprises a second barrier layer configured to be coupled to the electroluminescence device, and an adhesive configured to locate between and connect the first and second barrier layers, and at least to be coupled to the lateral side of the electroluminescence device to seal the electroluminescence device between the first and second barrier layers. An encapsulation method is also presented.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: January 8, 2013
    Assignee: General Electric Company
    Inventors: Donald Seton Farquhar, Ahmet Gun Erlat, Christian Maria Anton Heller, Anil Raj Duggal
  • Patent number: 8137148
    Abstract: An optoelectronic device having a monolithic interconnect structure includes a continuous anode layer, a discontinuous cathode layer, and an electroactive layer sandwiched between the continuous anode layer and the discontinuous cathode layer.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: March 20, 2012
    Assignee: General Electric Company
    Inventors: Donald Seton Farquhar, Anil Raj Duggal, Michael Scott Herzog, Jeffrey Michael Youmans, Stefan Rakuff, Linda Ann Boyd
  • Publication number: 20110244141
    Abstract: A method of processing a multilayer film is provided. The method includes providing a substrate film having a substrate film first surface and a substrate film second surface. The method also includes providing a barrier layer adjacent to the substrate film second surface. The barrier layer has at least one opening allowing fluid communication between the substrate film and an outer surface of the barrier layer. Further, the method includes contacting the substrate film first surface with a first reactant and finally contacting the outer surface of the barrier layer with a second reactant, said second reactant being reactive with said first reactant. The method of contacting the substrate film first surface to the first reactant and contacting the outer surface of the barrier layer to the second reactant is carried out under conditions under which reaction between said first reactant and the second reactant results in a formation of a reaction layer.
    Type: Application
    Filed: March 31, 2010
    Publication date: October 6, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Christian Maria Anton Heller, Anil Raj Duggal, Dennis Joseph Coyle, Min Yan, Ahmet Gün Erlat, Ri-an Zhao
  • Publication number: 20110227541
    Abstract: A passive battery charging control system for charging a battery is devoid of active electrical components. The passive battery charging control system includes one or more passive electrical control elements configured to limit the charging state of the battery.
    Type: Application
    Filed: March 19, 2010
    Publication date: September 22, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Anil Raj Duggal, Herman Lucas Norbert Wiegman, Gregory John Parker
  • Publication number: 20110206980
    Abstract: An energy storage device includes a housing having an interior surface defining a volume and a plurality of solid electrolyte elements disposed in the volume. Each solid electrolyte element has a first surface that defines at least a portion of a first, cathodic chamber, and a second surface that defines a second, anodic chamber. A plurality of individual anodic chambers are thus provided, at least one of which is evacuated below atmospheric pressure. A majority of anodic chambers can be spaced from one another in a manner that provides a substantially uniform reaction rate throughout the cathodic chamber.
    Type: Application
    Filed: February 24, 2010
    Publication date: August 25, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Chandra Sekher Yerramalli, Anil Raj Duggal, Andrew Philip Shapiro, Mohamed Rahmane, Reza Sarrafi-Nour, Gregory John Parker, Alireza Namazifard, Badri Narayan Ramamurthi
  • Publication number: 20110206984
    Abstract: A pre-sealed anode tube assembly for a sodium-metal-halide energy storage device includes an anode tube and a feed-through current collector assembly at least partially sealed within the anode tube. The pre-sealed anode tube assembly can be independently transported prior to being integrated with a desired sodium-metal-halide energy storage device.
    Type: Application
    Filed: February 25, 2010
    Publication date: August 25, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Chandra Sekher Yerramalli, Anil Raj Duggal, Andrew Philip Shapiro, Mohamed Rahmane, Reza Sarrafi-Nour, Gregory John Parker, Alireza Namazifard, Badri Narayan Ramamurthi, James Lowe Sudworth, Sylvia Marie DeCarr