Patents by Inventor David Walter Parry
David Walter Parry 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: 10428692Abstract: A fairing assembly is provided which is located between a frame hub and an engine casing. The assembly provides for use of a metallic structure in combination with a light weight low alpha material in order to improve engine efficiency and performance. Relative growth between the dissimilar materials is compensated for by a flexible bracket which provides biasing force on one of the assembly components in a cold engine condition as well as allowing for growth at the high temperature operating conditions of the engine.Type: GrantFiled: April 13, 2015Date of Patent: October 1, 2019Assignee: General Electric CompanyInventors: David Walter Parry, Christopher Charles Glynn, John Creighton Schilling
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Publication number: 20170030223Abstract: A fairing assembly is provided which is located between a frame hub and an engine casing. The assembly provides for use of a metallic structure in combination with a light weight low alpha material in order to improve engine efficiency and performance. Relative growth between the dissimilar materials is compensated for by a flexible bracket which provides biasing force on one of the assembly components in a cold engine condition as well as allowing for growth at the high temperature operating conditions of the engine.Type: ApplicationFiled: April 13, 2015Publication date: February 2, 2017Inventors: David Walter PARRY, Christopher Charles GLYNN, John Creighton SCHILLING
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Patent number: 8536878Abstract: A sensor system for measuring a clearance parameter between a stationary component and a rotating component of a rotating machine is provided. The system includes a clearance sensor to output a clearance measurement signal. A sensor memory is attached to the sensor for storing a first sensor information. A second sensor information is stored in a electronics interface memory. The first and the second sensor information are read and the clearance sensor is matched with a respective plurality of calibration data by an electronic interface based on the first and the second sensor information.Type: GrantFiled: August 10, 2011Date of Patent: September 17, 2013Assignee: General Electric CompanyInventors: Emad Andarawis Andarawis, Wayne Charles Hasz, David So Keung Chan, David Mulford Shaddock, John Harry Down, Samhita Dasgupta, David Walter Parry, David Richard Esler, Zhiyuan Ren, Mahadevan Balasubramaniam, Cheryl Herron
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Patent number: 8177474Abstract: A method of detecting rubs during operation of a turbomachine comprising at least one rotating object having a tip and a shelf is provided. The method includes generating signals representative of a sensed parameter and processing the signals to generate height versus time data for the tip. The height of the tip corresponds to the distance between the tip and the shelf. The method further includes monitoring the height versus time data, in order to determine whether a change in the height data exceeds a threshold value, and detecting a rub of the rotating object(s) on a second object, when the change in the height data exceeds the threshold value. A rub detection system for a turbomachine and a turbine engine system with rub detection are also provided.Type: GrantFiled: June 26, 2007Date of Patent: May 15, 2012Assignee: General Electric CompanyInventors: Emad Andarawis Andarawis, William Lee Herron, Samhita Dasgupta, John Harry Down, Mahadevan Balasubramaniam, David So Keung Chan, David Walter Parry
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Patent number: 8121813Abstract: A processing system for clearance estimation in a rotating machine includes one or more sensors and one or more digital signal processors for calculating the estimated clearance. The processing system may include techniques for obtaining real-time clearance estimates and techniques for obtaining averaged clearance estimates. Aspects of the processing system may also include a method of switching between real-time clearance estimates and averaged clearance estimates depending on the operating conditions of the rotating machine. Other aspects of the processing system include the use of two digital signal processors: a first digital signal processor configured to receive signals from a clearance sensor and perform a first set of high speed processing tasks, and a second digital signal processor configured to receive signals from the first digital signal processor and perform a second set of lower speed processing tasks.Type: GrantFiled: January 28, 2009Date of Patent: February 21, 2012Assignee: General Electric CompanyInventors: Zhiyuan Ren, Wayne Charles Hasz, Emad Andarawis Andarawis, David So Keung Chan, David Mulford Shaddock, John Harry Down, Samhita Dasgupta, William Lee Herron, Cheryl Lynn Herron, legal representative, David Walter Parry, David Richard Esler, Mahadevan Balasubramaniam
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Publication number: 20110295538Abstract: A sensor system for measuring a clearance parameter between a stationary component and a rotating component of a rotating machine is provided. The system includes a clearance sensor to output a clearance measurement signal. A sensor memory is attached to the sensor for storing a first sensor information. A second sensor information is stored in a electronics interface memory. The first and the second sensor information are read and the clearance sensor is matched with a respective plurality of calibration data by an electronic interface based on the first and the second sensor information.Type: ApplicationFiled: August 10, 2011Publication date: December 1, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Emad Andarawis Andarawis, Wayne Charles Hasz, David So Keung Chan, David Mulford Shaddock, John Harry Down, Samhita Dasgupta, David Walter Parry, David Richard Esler, Zhiyuan Ren, Mahadevan Balasubramaniam, William Lee Herron, Cheryl Herron
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Patent number: 8022715Abstract: A sensor system for measuring a clearance parameter between a stationary component and a rotating component of a rotating machine is provided. The system includes a clearance sensor to output a clearance measurement signal. A sensor memory is attached to the sensor for storing a first sensor information. A second sensor information is stored in a electronics interface memory. The first and the second sensor information are read and the clearance sensor is matched with a respective plurality of calibration data by an electronic interface based on the first and the second sensor information.Type: GrantFiled: January 27, 2009Date of Patent: September 20, 2011Assignee: General Electric CompanyInventors: Emad Andarawis Andarawis, Wayne Charles Hasz, David So Keung Chan, David Mulford Shaddock, John Harry Down, Samhita Dasgupta, David Walter Parry, David Richard Esler, Zhiyuan Ren, Mahadevan Balasubramaniam, William Lee Herron, Cheryl Herron, legal representative
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Publication number: 20100188100Abstract: A sensor system for measuring a clearance parameter between a stationary component and a rotating component of a rotating machine is provided. The system includes a clearance sensor to output a clearance measurement signal. A sensor memory is attached to the sensor for storing a first sensor information. A second sensor information is stored in a electronics interface memory. The first and the second sensor information are read and the clearance sensor is matched with a respective plurality of calibration data by an electronic interface based on the first and the second sensor information.Type: ApplicationFiled: January 27, 2009Publication date: July 29, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Emad Andarawis Andarawis, Wayne Charles Hasz, David So Keung Chan, David Mulford Shaddock, John Harry Down, Samhita Dasgupta, David Walter Parry, David Richard Esler, Zhiyuan Ren, Mahadevan Balasubramaniam, William Lee Herron, Cheryl Herron
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Publication number: 20100191502Abstract: A processing system for clearance estimation in a rotating machine includes one or more sensors and one or more digital signal processors for calculating the estimated clearance. The processing system may include techniques for obtaining real-time clearance estimates and techniques for obtaining averaged clearance estimates. Aspects of the processing system may also include a method of switching between real-time clearance estimates and averaged clearance estimates depending on the operating conditions of the rotating machine. Other aspects of the processing system include the use of two digital signal processors: a first digital signal processor configured to receive signals from a clearance sensor and perform a first set of high speed processing tasks, and a second digital signal processor configured to receive signals from the first digital signal processor and perform a second set of lower speed processing tasks.Type: ApplicationFiled: January 28, 2009Publication date: July 29, 2010Applicant: General Electric CompanyInventors: Zhiyuan Ren, Wayne Charles Hasz, Emad Andarawis Andarawis, David So Keung Chan, David Mulford Shaddock, John Harry Down, Samhita Dasgupta, William Lee Herron, David Walter Parry, Cheryl Lynn Herron, David Richard Esler, Mahadevan Balasubramaniam
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Publication number: 20090003991Abstract: A method of detecting rubs during operation of a turbomachine comprising at least one rotating object having a tip and a shelf is provided. The method includes generating signals representative of a sensed parameter and processing the signals to generate height versus time data for the tip. The height of the tip corresponds to the distance between the tip and the shelf. The method further includes monitoring the height versus time data, in order to determine whether a change in the height data exceeds a threshold value, and detecting a rub of the rotating object(s) on a second object, when the change in the height data exceeds the threshold value. A rub detection system for a turbomachine and a turbine engine system with rub detection are also provided.Type: ApplicationFiled: June 26, 2007Publication date: January 1, 2009Applicant: GENERAL ELECTRIC COMPANYInventors: Emad Andarawis Andarawis, William Lee Herron, Samhita Dasgupta, John Harry Down, Mahadevan Balasubramaniam, David So Keung Chan, David Walter Parry
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Patent number: 7294413Abstract: A protected article includes a substrate having a surface, and a protective system overlying and contacting a first portion of the surface of the substrate. The protective system has a nickel-base superalloy bond coat, an aluminide layer overlying and contacting the bond coat, and a dense vertically microcracked ceramic thermal barrier coating overlying and contacting the aluminide layer.Type: GrantFiled: March 7, 2005Date of Patent: November 13, 2007Assignee: General Electric CompanyInventors: Bangalore Aswatha Nagaraj, D. Keith Patrick, Thomas John Tomlinson, David Walter Parry