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).
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Patent number: 11964961Abstract: 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: GrantFiled: March 17, 2021Date of Patent: April 23, 2024Assignee: 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
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Patent number: 9509923Abstract: 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: GrantFiled: January 10, 2012Date of Patent: November 29, 2016Assignee: General Electric CompanyInventors: Achalesh Kumar Pandey, Nirm Velumylum Nirmalan, Manoharan Venugopal, David Lee Rogers, John Brandon Laflen, Lucy Summerville Giametta
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Patent number: 9222410Abstract: 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: GrantFiled: January 10, 2012Date of Patent: December 29, 2015Assignee: General Electric CompanyInventors: 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
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Patent number: 8874415Abstract: 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: GrantFiled: January 4, 2012Date of Patent: October 28, 2014Assignee: General Electric CompanyInventors: Achalesh Kumar Pandey, Deepali Nitin Bhate, Shivappa Ningappa Goravar, David Lee Rogers
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Patent number: 8671688Abstract: 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: GrantFiled: April 13, 2011Date of Patent: March 18, 2014Assignee: General Electric CompanyInventors: David Lee Rogers, Rahul Jaikaran Chillar, Robert Frank Hoskin, Julio Enrique Mestroni, Vijay Raghavendran Nenmeni
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Publication number: 20130176418Abstract: 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: ApplicationFiled: January 10, 2012Publication date: July 11, 2013Inventors: Achalesh Kumar Pandey, Nirm Velumylum Nirmalan, Manoharan Venugopal, David Lee Rogers, John Brandon Laflen, Lucy Summerville Glametta
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Publication number: 20130173231Abstract: 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: ApplicationFiled: January 4, 2012Publication date: July 4, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Achalesh Kumar Pandey, Deepali Nitin Bhate, Shivappa Ningappa Goravar, David Lee Rogers
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Patent number: 8438850Abstract: 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: GrantFiled: February 17, 2009Date of Patent: May 14, 2013Assignee: General Electric CompanyInventors: Ravindra Annigeri, David Lee Rogers, Douglas Rush, Kevin J. Gersch
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Publication number: 20130110424Abstract: 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: ApplicationFiled: October 28, 2011Publication date: May 2, 2013Applicant: General Electric CompanyInventors: Roopesh Bhaskaran Nagathil, Jitendra Kumar, Dattaraj Jagdish Rao, David Lee Rogers, Difei Wang
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Publication number: 20120260667Abstract: 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: ApplicationFiled: January 10, 2012Publication date: October 18, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: 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
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Publication number: 20120260668Abstract: 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: ApplicationFiled: April 13, 2011Publication date: October 18, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: David Lee Rogers, Rahul Jaikaran Chillar, Robert Frank Hoskin, Julio Enrique Mestroni, Vijay Raghavendran Nenmeni
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Patent number: 7913815Abstract: 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: GrantFiled: January 27, 2009Date of Patent: March 29, 2011Assignee: General Electric CompanyInventors: Ravindra Annigeri, Patrick William Anglin, Marlowe Cameron Bjorklund, Leigh-Ann Darden Heuser, Reginald Wayne Kemp, David Lee Rogers
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Publication number: 20100205977Abstract: 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: ApplicationFiled: February 17, 2009Publication date: August 19, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Ravindra Annigeri, David Lee Rogers, Douglas Rush, Kevin J. Gersch
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Publication number: 20100189545Abstract: 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: ApplicationFiled: January 27, 2009Publication date: July 29, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Ravindra Annigeri, Patrick William Anglin, Marlowe Cameron Bjorklund, Leigh-Ann Darden Heuser, Reginald Wayne Kemp, David Lee Rogers