Patents by Inventor Ramesh Subramanian

Ramesh 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).

  • Patent number: 8397176
    Abstract: A user interface dialog is provided. The user interface dialog comprises tear-off functionality for being torn-off from a drop-down selection, and docking functionality for docking onto a docker.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: March 12, 2013
    Assignee: Corel Corporation
    Inventors: Ramesh Subramanian, Stephen Mereu, Robert Reid
  • Patent number: 8357454
    Abstract: A ceramic thermal barrier coating (TBC) (18) having first and second layers (20, 22), the second layer (22) having a lower thermal conductivity than the first layer for a given density. The second layer may be formed of a material with anisotropic crystal lattice structure. Voids (24) in at least the first layer (20) make the first layer less dense than the second layer. Grooves (28) are formed in the TBC (18) for thermal strain relief. The grooves may align with fluid streamlines over the TBC. Multiple layers (84, 86, 88) may have respective sets of grooves (90), Preferred failure planes parallel to the coating surface (30) may be formed at different depths (A1, A2, A3) in the thickness of the TBC to stimulate generation of a fresh surface when a portion of the coating fails by spalling. A dense top layer (92) may provide environmental and erosion resistance.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: January 22, 2013
    Assignee: Siemens Energy, Inc.
    Inventors: Anand A. Kulkarni, David J. Mitchell, Ramesh Subramanian, Andrew J. Burns
  • Patent number: 8354151
    Abstract: Aqueous polyurethane coating compositions are disclosed in this specification. The aqueous polyurethane coating compositions contain a polycarbonate-polyurethane resin component, an aminoplast resin component, and a polyester polyol component.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: January 15, 2013
    Assignees: Bayer MaterialScience LLC, Bayer MaterialScience AG
    Inventors: Ramesh Subramanian, Raymond Stewart, Abdullah Ekin, Torsten Pohl
  • Publication number: 20130011590
    Abstract: Aqueous polyurethane coating compositions are disclosed in this specification. The aqueous polyurethane coating compositions contain a polycarbonate-polyurethane resin component, an aminoplast resin component, and a polyurethane polyol component.
    Type: Application
    Filed: July 6, 2011
    Publication date: January 10, 2013
    Applicants: Bayer MaterialScience AG, Bayer MaterialScience LLC
    Inventors: Ramesh Subramanian, Raymond Stewart, Abdullah Ekin, William Corso, Larry Smedley, Torsten Pohl
  • Publication number: 20130011591
    Abstract: Aqueous polyurethane coating compositions are disclosed in this specification. The aqueous polyurethane coating compositions contain a polycarbonate-polyurethane resin component, an aminoplast resin component, and a polyacrylic polyol component.
    Type: Application
    Filed: July 6, 2011
    Publication date: January 10, 2013
    Applicant: Bayer MaterialScience LLC
    Inventors: Abdullah Ekin, Raymond Stewart, Ramesh Subramanian, Torsten Pohl
  • Publication number: 20130011592
    Abstract: Aqueous polyurethane coating compositions are disclosed in this specification. The aqueous polyurethane coating compositions contain a polycarbonate-polyurethane resin component, an aminoplast resin component, and a polyester polyol component.
    Type: Application
    Filed: July 6, 2011
    Publication date: January 10, 2013
    Applicants: Bayer MaterialScience AG, Bayer MaterialScience LLC
    Inventors: Ramesh Subramanian, Raymond Stewart, Abduallah Ekin, Torsten Pohl
  • Patent number: 8343601
    Abstract: Aqueous polyurethane coating compositions are disclosed in this specification. The aqueous polyurethane coating compositions contain a polycarbonate-polyurethane resin component, an aminoplast resin component, and a polyacrylic polyol component.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: January 1, 2013
    Assignees: Bayer MaterialScience LLC, Bayer MaterialScience AG
    Inventors: Abdullah Ekin, Raymond Stewart, Ramesh Subramanian, Torsten Pohl
  • Publication number: 20120269958
    Abstract: A method for simulating of the thickness of a coating which is placed onto a substrate surface is disclosed. The thickness is simulated using mass conservation principles. In a preferred embodiment at least one reference spray trial is performed, the correlation of a single spray profile to at least one spray process parameter is determined, the single spray profile is simulated using mass conservation principles to an incoming powder jet stream.
    Type: Application
    Filed: February 16, 2010
    Publication date: October 25, 2012
    Inventors: Ramesh Subramanian, Alexandr Sadovoy
  • Publication number: 20120256761
    Abstract: In a telemetry system for use in an engine, a circuit structure (34) affixed to a moving part (20) of the engine is disposed for amplifying information sensed about a condition of the part and transmitting the sensed information to a receiver external to the engine. The circuit structure is adapted for the high temperature environment of the engine and includes a differential amplifier (102, 111) having an input for receiving a signal from a sensor (101, 110) disposed on the part. A voltage controlled oscillator (104, 115) with an input coupled to the output of the amplifier produces an oscillatory signal having a frequency representative of the sensed condition. A buffer (105, 116) with an input coupled to the output of the oscillator buffers the oscillatory signal, which is then coupled to an antenna (26) for transmitting the information to the receiver.
    Type: Application
    Filed: June 19, 2012
    Publication date: October 11, 2012
    Inventors: DAVID J. MITCHELL, Anand A. Kulkarni, Ramesh Subramanian, Edward R. Roesch, Rod Waits, Roberto Schupbach, John R. Fraley, Alexander B. Lostetter, Brice Mcpherson, Bryon Westen
  • Publication number: 20120236899
    Abstract: A method of forming a thermocouple (12), including: depositing a first material on a component (10) to form a first leg (14); depositing a second material through a mask (30) to form a pattern (50) on the component (10), the pattern (50) forming a plurality of discrete second leg junction ends (20) and a continuous patch (52) of the second material comprising indiscrete lead ends of the second legs (16), each second leg junction end (20) spanning from a respective junction (18) with the first leg (14) to the continuous patch (52); and laser-ablating the continuous patch (52) to form discrete lead ends (22) of the second legs (16), each lead end (22) electrically connected to a respective junction end (20), thereby forming discrete second legs (16).
    Type: Application
    Filed: March 12, 2012
    Publication date: September 20, 2012
    Inventors: Ramesh Subramanian, Anand A. Kulkarni, Kevin C. Sheehan
  • Patent number: 8269132
    Abstract: The invention relates to a method for electrical discharge machining of electrically non-conductive material in which a layer of an electrically conductive substance is applied as an auxiliary electrode on the electrically non-conductive material. Said method is characterized in that the electrically conductive substance is chemically converted by oxidative heat treatment after electrical discharge machining.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: September 18, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventors: Ralf Förster, Karsten Klein, Ulrich Laudien, Silke Settegast, Ramesh Subramanian
  • Patent number: 8242045
    Abstract: A wash-coat (16) for use as a support for an active catalyst species (18) and a catalytic combustor component (10) incorporating such wash-coat. The wash-coat is a solid solution of alumina or alumina-based material (Al2O3-0-3 wt % La2O3) and a further oxide exhibiting a coefficient of thermal expansion that is lower than that exhibited by alumina. The further oxide may be silicon dioxide (2-30 wt % SiO2), zirconia silicate (2-30 wt % ZrSiO4), neodymium oxide (0-4 wt %), titania (Al2O3-3-40% TiO2) or alumina-based magnesium aluminate spinel (Al2O3-25 wt % MgO) in various embodiments. The active catalyst species may be palladium and a second metal in a concentration of 10-50% of the concentration of the palladium.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: August 14, 2012
    Assignee: Siemens Energy, Inc.
    Inventors: Anand A. Kulkarni, Ramesh Subramanian, Stephen M. Sabol
  • Publication number: 20120201982
    Abstract: The present invention relates to an aqueous polyurethane coating composition comprising: 1) 1 to 99 wt. % of the reaction product of: a) a polyol component, which is soluble or dispersible in water and is the reaction product of a polyisocyanate component containing 50 to 100 wt. % of an aliphatic diisocyanate, a polyol component containing one or more polyether polyols and having an OH number of 25 to 350 mg KOH/g solids and an isocyanate-reactive component containing at least one group capable of salt formation; and b) polyisocyanate component, which is soluble or dispersible in water, has blocked isocyanate groups and is the reaction product of one or more polyisocyanates having an isocyanurate group content of 0 to 30 wt. %, a reversible, monofunctional blocking agent for isocyanate groups, a nonionic hydrophilic component and a stabilizing component which has 1 to 2 hydrazide groups and a molecular weight of 74 to 300 g/mol; and 2) 1 to 99 wt.
    Type: Application
    Filed: August 18, 2010
    Publication date: August 9, 2012
    Applicant: Bayer MaterialScience LLC
    Inventors: Raymond Stewart, Scott A. Grace, Dennis Postupack, Louis Mattos, JR., Ramesh Subramanian, Abdullah Ekin, Sterling L. Steward, Christopher R. Mubarak
  • Publication number: 20120197597
    Abstract: A telemetry system for use in a combustion turbine engine (10) having a compressor (12), a combustor and a turbine (16) and includes a sensor (118) in connection with a turbine blade (111) or vane (23). A transmitter assembly (117) includes a telemetry transmitter circuit/transceiver may be affixed on a turbine blade (111) or seal plate (115) proximate the turbine blade with a first connecting material (119) deposited on the turbine blade (111) for routing electronic data signals, indicative of a condition of the turbine blade (111), from the sensor (118) to the telemetry transmitter circuit/transceiver. An induction power system for powering the telemetry transmitter circuit/transceiver may include a rotating data antenna (116) affixed to the seal plate (115) with an electrical connection (122) between the telemetry transmitting circuit/transceiver for routing electronic data signals from the telemetry transmitter circuit/transceiver to the rotating data antenna (119).
    Type: Application
    Filed: February 1, 2011
    Publication date: August 2, 2012
    Inventors: David J. Mitchell, Ramesh Subramanian, Cora Schillig, Anand A. Kulkarni, Vinay Jonnalagadda, Bulent Acar, Sankar Nellian, James P. Williams, Edward R. Roesch
  • Patent number: 8220990
    Abstract: A circuit assembly (34) affixed to a moving part (20) of a turbine for receiving information about a condition of the part and transmitting this information external to the engine. The circuit assembly includes a high-temperature resistant package (34A) that attaches to the part. A high temperature resistant PC board (42) supports both active and passive components of the circuit, wherein a first group of the passive components are fabricated with zero temperature coefficient of resistance and a second group of the passive components are fabricated with a positive temperature coefficient of resistance. The active components are fabricated with high temperature metallization. Connectors (40) attached to the PC board pass through a wall of the package (34A) for communication with sensors (30) on the part and with an antenna (26) for transmitting data about the condition of the part to outside the turbine.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: July 17, 2012
    Assignees: Siemens Energy, Inc., Arkansas Power Electronics International, Inc.
    Inventors: David J. Mitchell, Anand A. Kulkarni, Ramesh Subramanian, Edward R. Roesch, Rod Waits, Roberto Schupbach, John R. Fraley, Alexander B. Lostetter, Brice McPherson, Bryon Western
  • Patent number: 8223036
    Abstract: In a telemetry system for use in an engine, a circuit structure (34) affixed to a moving part (20) of the engine is disposed for amplifying information sensed about a condition of the part and transmitting the sensed information to a receiver external to the engine. The circuit structure is adapted for the high temperature environment of the engine and includes a differential amplifier (102, 111) having an input for receiving a signal from a sensor (101, 110) disposed on the part. A voltage controlled oscillator (104, 115) with an input coupled to the output of the amplifier produces an oscillatory signal having a frequency representative of the sensed condition. A buffer (105, 116) with an input coupled to the output of the oscillator buffers the oscillatory signal, which is then coupled to an antenna (26) for transmitting the information to the receiver.
    Type: Grant
    Filed: August 15, 2008
    Date of Patent: July 17, 2012
    Assignees: Siemens Energy, Inc., Arkansas Power Electronics International, Inc.
    Inventors: David J. Mitchell, Anand A. Kulkarni, Ramesh Subramanian, Edward R. Roesch, Rod Waits, Roberto Schupbach, John R. Fraley, Alexander B. Lostetter, Brice McPherson, Bryon Western
  • Publication number: 20120156362
    Abstract: A method for generating a motion path for a spray gun for coating a component is disclosed. Path templates for surface segments of the component are defined, the surface is analyzed, a first motion path is generated, a model of the spray profile is simulated, the coating thickness is simulated for the motion path based on the simulated model of the spray profile and the generated first motion path. The simulated coating thickness is compared with tolerances and when the simulated coating thickness does not achieve the tolerances, an adapted motion path is generated. The coating thickness is simulated for the motion path based on the simulated model of the spray profile and the generated adapted motion path. Repeating the comparing, the motion path generation, and the simulation of the coating thickness based on the generated adapted motion path until the simulated coating thickness achieves the tolerances.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 21, 2012
    Inventors: Alexandr Sadovoy, Ramesh Subramanian, Dimitrios Thomaidis
  • Publication number: 20120101775
    Abstract: A diagnostic system and method for monitoring operating conditions of turbine machine components (18, 19, 22, 23) that comprise one or more non-contact sensors (24, 31) that detect an operating condition of a turbine component (18, 19, 22, 23) over a defined region of the component. In addition, point sensors (50) are provided that detect and monitor the same operating condition within the defined region. Data generated from the point sensor (50) is used to calibrate the non-contact sensor (24, 31) and the data generated by the non-contact sensor (24, 31).
    Type: Application
    Filed: October 21, 2010
    Publication date: April 26, 2012
    Inventors: David J. Mitchell, Ramesh Subramanian, Nancy H. Ulerich, Paul J. Zombo
  • Patent number: 8163396
    Abstract: A layer system is disclosed. The layer system includes a substrate and a ceramic outer layer. The ceramic outer ceramic layer is produced from a ceramic powder. The ceramic powder include a phrochlore phase according to the empirical formula AxByOz with x, y?2, z?7 and a secondary oxide CrOs with r, s>0.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: April 24, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventor: Ramesh Subramanian
  • Patent number: 8151623
    Abstract: A wear sensor (30, 50, 60) installed on a surface area (24) of a component (20, 21) subject to wear from an opposing surface (74, 75). The sensor has a proximal portion (32A, 52A, 62A) and a distal portion (32C, 52C, 62C) relative to a wear starting position (26). An electrical circuit (40) measures an electrical characteristic such as resistance of the sensor, which changes with progressive reduction of the sensor from the proximal portion to the distal portion during a widening reduction wear of the surface from the starting position. The measuring circuit quantifies the electrical changes to derive a wear depth based on a known geometry of the wear depth per wear width. In this manner, wear depth may be measured with a surface mounted sensor.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: April 10, 2012
    Assignee: Siemens Energy, Inc.
    Inventors: Sachin R. Shinde, Anand A. Kulkarni, David J. Mitchell, Ramesh Subramanian