Patents by Inventor David Lee Rogers

David Lee Rogers 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: 11964961
    Abstract: The present invention provides, in part, compounds of Formula I: and pharmaceutically acceptable salts thereof; processes for the preparation of; intermediates used in the preparation of; and compositions containing such compounds or salts, and their uses for treating D1-mediated (or D1-associated) disorders including, e.g., schizophrenia (e.g., its cognitive and negative symptoms), cognitive impairment (e.g.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: April 23, 2024
    Assignee: Pfizer Inc.
    Inventors: Michael Aaron Brodney, Jennifer Elizabeth Davoren, Amy Beth Dounay, Ivan Viktorovich Efremov, David Lawrence Firman Gray, Michael Eric Green, Jaclyn Louise Henderson, Chewah Lee, Scot Richard Mente, Steven Victor O'Neil, Bruce Nelsen Rogers, Lei Zhang
  • Patent number: 9509923
    Abstract: A method for continuously monitoring the working condition of a heat recovery steam generator (“HRSG”) using infrared thermography, comprising the steps of identifying target locations inside the HRSG, positioning one or more infrared cameras to continuously monitor and record the temperature at each target location, generating continuous thermographic images corresponding to selected components and locations at each target locations, comparing the continuous thermographic images to corresponding, stored base line images and generating a set of comparative data reports in real time for each target location in order to predict the life span or potential failure of HRSG components.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: November 29, 2016
    Assignee: General Electric Company
    Inventors: Achalesh Kumar Pandey, Nirm Velumylum Nirmalan, Manoharan Venugopal, David Lee Rogers, John Brandon Laflen, Lucy Summerville Giametta
  • Patent number: 9222410
    Abstract: A power plant is provided and includes a gas turbine engine to generate power, a heat recovery steam generator (HRSG) to produce steam from high energy fluids produced from the generation of power in the gas turbine engine, a steam turbine engine to generate additional power from the steam produced in the HRSG and a thermal load reduction system to reduce thermal loading of components of the HRSG and/or the steam turbine engine during at least startup and/or part load operations, which includes an eductor by which a mixture of compressor discharge air and entrained ambient air is injectable into the HRSG and/or an attemperator to cool superheated steam to be transmitted to the steam turbine engine and a detector disposed within the HRSG to facilitate identification of hot spots therein.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: December 29, 2015
    Assignee: General Electric Company
    Inventors: Rahul Jaikaran Chillar, Wulang Edwien Chriswindarto, Sanji Ekanayake, Julio Enrique Mestroni, Vijay Raghavendran Nenmeni, Achalesh Kumar Pandey, David Lee Rogers, Morgan Carthledge Salter, Ajit Srivastava
  • Patent number: 8874415
    Abstract: A method of forming a failure estimate for one or more components of a heat recovery steam generator (HRSG) includes forming from failure models and at least one of fired hours and fired starts, factored hours and factored starts. The factored hours and/or starts are applied to failure equations for the one or more components to form the failure estimate.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: October 28, 2014
    Assignee: General Electric Company
    Inventors: Achalesh Kumar Pandey, Deepali Nitin Bhate, Shivappa Ningappa Goravar, David Lee Rogers
  • Patent number: 8671688
    Abstract: A combined cycle power plant is provided and includes a gas turbine engine to generate power, a heat recovery steam generator (HRSG) to produce steam from high energy fluids produced from the generation of power in the gas turbine engine, a steam turbine engine to generate additional power from the steam produced in the HRSG and a thermal load reduction system to reduce thermal loading of components of the HRSG and/or the steam turbine engine during at least startup and/or part load operations, which includes an eductor by which a mixture of compressor discharge air and entrained ambient air is injectable into the HRSG and/or an attemperator to cool superheated steam to be transmitted to the steam turbine engine.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: March 18, 2014
    Assignee: General Electric Company
    Inventors: David Lee Rogers, Rahul Jaikaran Chillar, Robert Frank Hoskin, Julio Enrique Mestroni, Vijay Raghavendran Nenmeni
  • Publication number: 20130176418
    Abstract: A method for continuously monitoring the working condition of a heat recovery steam generator (“HRSG”) using infrared thermography, comprising the steps of identifying target locations inside the HRSG, positioning one or more infrared cameras to continuously monitor and record the temperature at each target location, generating continuous thermographic images corresponding to selected components and locations at each target locations, comparing the continuous thermographic images to corresponding, stored base line images and generating a set of comparative data reports in real time for each target location in order to predict the life span or potential failure of HRSG components.
    Type: Application
    Filed: January 10, 2012
    Publication date: July 11, 2013
    Inventors: Achalesh Kumar Pandey, Nirm Velumylum Nirmalan, Manoharan Venugopal, David Lee Rogers, John Brandon Laflen, Lucy Summerville Glametta
  • Publication number: 20130173231
    Abstract: A method of forming a failure estimate for one or more components of a heat recovery steam generator (HRSG) includes forming from failure models and at least one of fired hours and fired starts, factored hours and factored starts. The factored hours and/or starts are applied to failure equations for the one or more components to form the failure estimate.
    Type: Application
    Filed: January 4, 2012
    Publication date: July 4, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Achalesh Kumar Pandey, Deepali Nitin Bhate, Shivappa Ningappa Goravar, David Lee Rogers
  • Patent number: 8438850
    Abstract: A waste heat utilization system and associated methods for preheating fuel for a turbine engine component. The turbine engine component includes at least one heat generating source. The system includes structure for applying heat from the at least one heat generating source to relatively cold fuel for the turbine engine component to preheat the fuel prior to ignition.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: May 14, 2013
    Assignee: General Electric Company
    Inventors: Ravindra Annigeri, David Lee Rogers, Douglas Rush, Kevin J. Gersch
  • Publication number: 20130110424
    Abstract: A power meter includes a power detection unit to sense a level of consumed power in at least a portion of a building and to output sensed power level data, a timing unit to designate a predetermined period of time, and an analysis unit. The analysis unit receives the sensed power level data, determines whether the level of consumed power is abnormal by generating a representative value representative of the level of consumed power over the predetermined period of time, compares the representative value to a threshold value, and outputs an alert to a remote device when it is determined that the consumed power is abnormal based at least on the comparison of the representative value to the threshold value.
    Type: Application
    Filed: October 28, 2011
    Publication date: May 2, 2013
    Applicant: General Electric Company
    Inventors: Roopesh Bhaskaran Nagathil, Jitendra Kumar, Dattaraj Jagdish Rao, David Lee Rogers, Difei Wang
  • Publication number: 20120260667
    Abstract: A power plant is provided and includes a gas turbine engine to generate power, a heat recovery steam generator (HRSG) to produce steam from high energy fluids produced from the generation of power in the gas turbine engine, a steam turbine engine to generate additional power from the steam produced in the HRSG and a thermal load reduction system to reduce thermal loading of components of the HRSG and/or the steam turbine engine during at least startup and/or part load operations, which includes an eductor by which a mixture of compressor discharge air and entrained ambient air is injectable into the HRSG and/or an attemperator to cool superheated steam to be transmitted to the steam turbine engine and a detector disposed within the HRSG to facilitate identification of hot spots therein.
    Type: Application
    Filed: January 10, 2012
    Publication date: October 18, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Rahul Jaikaran Chillar, Wulang Edwien Chriswindarto, Sanji Ekanayake, Julio Enrique Mestroni, Vijay Raghavendran Nenmeni, Achalesh Kumar Pandey, David Lee Rogers, Morgan Carthledge Salter, Ajit Srivastava
  • Publication number: 20120260668
    Abstract: A combined cycle power plant is provided and includes a gas turbine engine to generate power, a heat recovery steam generator (HRSG) to produce steam from high energy fluids produced from the generation of power in the gas turbine engine, a steam turbine engine to generate additional power from the steam produced in the HRSG and a thermal load reduction system to reduce thermal loading of components of the HRSG and/or the steam turbine engine during at least startup and/or part load operations, which includes an eductor by which a mixture of compressor discharge air and entrained ambient air is injectable into the HRSG and/or an attemperator to cool superheated steam to be transmitted to the steam turbine engine.
    Type: Application
    Filed: April 13, 2011
    Publication date: October 18, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: David Lee Rogers, Rahul Jaikaran Chillar, Robert Frank Hoskin, Julio Enrique Mestroni, Vijay Raghavendran Nenmeni
  • Patent number: 7913815
    Abstract: Disclosed is a solution to automate a seal oil float trap by-pass for a hydrogen cooled generator. An automated by-pass system is coupled to an existing manual by-pass system for a float trap for a hydrogen cooled generator. The automated by-pass system includes at least one solenoid valve and a controller that controls opening and closing of the solenoid valve. The automated by-pass system can also include manual valves, orifices and limit switches. The controller activates the solenoid valve to allow the seal oil to drain. The controller can also provide a notification alarm that the hydrogen cooled generator is being purged.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: March 29, 2011
    Assignee: General Electric Company
    Inventors: Ravindra Annigeri, Patrick William Anglin, Marlowe Cameron Bjorklund, Leigh-Ann Darden Heuser, Reginald Wayne Kemp, David Lee Rogers
  • Publication number: 20100205977
    Abstract: A waste heat utilization system and associated methods for preheating fuel for a turbine engine component. The turbine engine component includes at least one heat generating source. The system includes structure for applying heat from the at least one heat generating source to relatively cold fuel for the turbine engine component to preheat the fuel prior to ignition.
    Type: Application
    Filed: February 17, 2009
    Publication date: August 19, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Ravindra Annigeri, David Lee Rogers, Douglas Rush, Kevin J. Gersch
  • Publication number: 20100189545
    Abstract: Disclosed is a solution to automate a seal oil float trap by-pass for a hydrogen cooled generator. An automated by-pass system is coupled to an existing manual by-pass system for a float trap for a hydrogen cooled generator. The automated by-pass system includes at least one solenoid valve and a controller that controls opening and closing of the solenoid valve. The automated by-pass system can also include manual valves, orifices and limit switches. The controller activates the solenoid valve to allow the seal oil to drain. The controller can also provide a notification alarm that the hydrogen cooled generator is being purged.
    Type: Application
    Filed: January 27, 2009
    Publication date: July 29, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Ravindra Annigeri, Patrick William Anglin, Marlowe Cameron Bjorklund, Leigh-Ann Darden Heuser, Reginald Wayne Kemp, David Lee Rogers