Patents by Inventor Tung K. Nguyen

Tung K. Nguyen 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: 10907746
    Abstract: A valve including a control assembly that is configured to control fluid flow through the valve, The control assembly includes a driving element and a valve member. The driving element is rotatable about an axis between a first operating state in which the driving element maintains contact between the valve member and a valve seat and a second operating state in which the driving element does not maintain contact between the valve member and the valve seat. The valve member is rotatable about the axis independent of the driving element when the driving element is in the second operating state.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: February 2, 2021
    Assignee: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
    Inventors: Juan M. Diaz, Roy R. Pelfrey, Tung K. Nguyen, Nadim Ahmed
  • Patent number: 10782713
    Abstract: A fluid regulator includes a balance port regulator valve and an actuator coupled to the regulator valve. The regulator valve has an inlet, an outlet, a valve port disposed between the inlet and the outlet, and a valve disc movable along a longitudinal axis between a closed position in which the valve disc sealingly engages the valve port and an open position in which the valve disc is spaced apart from the valve port. The actuator is responsive to fluid pressure to move an actuator stem along the longitudinal axis. A connector assembly operably and removably connects the valve disc to the actuator stem.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: September 22, 2020
    Assignee: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
    Inventors: Min Wang, Guolei Fan, David Davis, Tung K. Nguyen
  • Patent number: 10678274
    Abstract: Control systems include various combinations of pressure regulators, pilots, and pressure stabilizers to provide systems with adjustable deadbands for over pressure protection, adjustable deadbands for under pressure protection, adjustable deadbands for both over pressure and under pressure protection, pressure assisted closure for over pressure protection, pressure assisted closure for under pressure protection, pressure assisted closure for both over pressure and under pressure protection, or spring assisted closure for over pressure and under pressure protection.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: June 9, 2020
    Assignee: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
    Inventors: Justin Lane Masias, Douglas James Scheffler, Tung K. Nguyen, James Curtis Bagby
  • Publication number: 20200133317
    Abstract: A fluid regulator includes a balance port regulator valve and an actuator coupled to the regulator valve. The regulator valve has an inlet, an outlet, a valve port disposed between the inlet and the outlet, and a valve disc movable along a longitudinal axis between a closed position in which the valve disc sealingly engages the valve port and an open position in which the valve disc is spaced apart from the valve port. The actuator is responsive to fluid pressure to move an actuator stem along the longitudinal axis. A connector assembly operably and removably connects the valve disc to the actuator stem.
    Type: Application
    Filed: November 14, 2018
    Publication date: April 30, 2020
    Inventors: Min Wang, Guolei Fan, David Davis, Tung K. Nguyen
  • Patent number: 10612680
    Abstract: A stabilizer cartridge for enhancing stability of a fluid regulator is provided. The stabilizer cartridge includes a body, a first disk, and a second disk. The body has a through-bore and an external flange. The first disk has one or more windows and an aperture, and is fixed on an exterior surface of the body. The second disk is slidable along the exterior surface of the body and is biased into contact with the first disk by a biasing element that is positioned between the external flange and the second disk.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: April 7, 2020
    Assignee: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES. INC.
    Inventors: James C. Hawkins, David B. Davis, Tung K. Nguyen
  • Publication number: 20190309866
    Abstract: A valve including a control assembly that is configured to control fluid flow through the valve, The control assembly includes a driving element and a valve member. The driving element is rotatable about an axis between a first operating state in which the driving element maintains contact between the valve member and a valve seat and a second operating state in which the driving element does not maintain contact between the valve member and the valve seat. The valve member is rotatable about the axis independent of the driving element when the driving element is in the second operating state.
    Type: Application
    Filed: June 21, 2019
    Publication date: October 10, 2019
    Inventors: Juan M. Diaz, Roy R. Pelfrey, Tung K. Nguyen, Nadim Ahmed
  • Publication number: 20190242484
    Abstract: A stabilizer cartridge for enhancing stability of a fluid regulator is provided. The stabilizer cartridge includes a body, a first disk, and a second disk. The body has a through-bore and an external flange. The first disk has one or more windows and an aperture, and is fixed on an exterior surface of the body. The second disk is slidable along the exterior surface of the body and is biased into contact with the first disk by a biasing element that is positioned between the external flange and the second disk.
    Type: Application
    Filed: April 19, 2019
    Publication date: August 8, 2019
    Inventors: James C. Hawkins, David B. Davis, Tung K. Nguyen
  • Patent number: 10344880
    Abstract: An actuator assembly for use with a shut-off valve in a transport or storage system. The assembly is configured to be operatively coupled to a stem of the valve for controlling fluid flow therethrough. The assembly includes a mounting bracket coupled to the bonnet, a mounting sleeve coupled to the stem and movable relative to the mounting bracket, and an actuator having a body and an inlet formed in the body. The body is defined by a first body portion coupled to the mounting bracket and a second body portion coupled to the mounting sleeve and movable relative to the first body portion to expand or contract the body. The inlet is adapted to receive pressurized fluid; the body expands or contracts responsive to the pressurized fluid, and responsive to the expansion or contraction of the body, the mounting sleeve moves relative to the mounting bracket, thereby moving the stem.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: July 9, 2019
    Assignee: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
    Inventors: Juan M. Diaz, Roy R. Pelfrey, Tung K. Nguyen, Nadim Ahmed
  • Patent number: 10302209
    Abstract: A stabilizer cartridge for enhancing stability of a fluid regulator is provided. The stabilizer cartridge includes a body, a first disk, and a second disk. The body is adapted to be disposed around a valve stem of the fluid regulator. The first disk is coupled to the body and defines one or more flow paths for facilitating pressure relief. The second disk is movably coupled to the body and is movable relative to the first disk responsive to fluid flow through the one or more flow paths of the first disk.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: May 28, 2019
    Assignee: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
    Inventors: James C. Hawkins, David B. Davis, Tung K. Nguyen
  • Publication number: 20180058596
    Abstract: A stabilizer cartridge for enhancing stability of a fluid regulator is provided. The stabilizer cartridge includes a body, a first disk, and a second disk. The body is adapted to be disposed around a valve stem of the fluid regulator. The first disk is coupled to the body and defines one or more flow paths for facilitating pressure relief. The second disk is movably coupled to the body and is movable relative to the first disk responsive to fluid flow through the one or more flow paths of the first disk.
    Type: Application
    Filed: August 31, 2016
    Publication date: March 1, 2018
    Applicant: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
    Inventors: James C. Hawkins, David B. Davis, Tung K. Nguyen
  • Publication number: 20170335982
    Abstract: Control systems include various combinations of pressure regulators, pilots, and pressure stabilizers to provide systems with adjustable deadbands for over pressure protection, adjustable deadbands for under pressure protection, adjustable deadbands for both over pressure and under pressure protection, pressure assisted closure for over pressure protection, pressure assisted closure for under pressure protection, pressure assisted closure for both over pressure and under pressure protection, or spring assisted closure for over pressure and under pressure protection.
    Type: Application
    Filed: August 9, 2017
    Publication date: November 23, 2017
    Inventors: Justin Lane Masias, Douglas James Scheffler, Tung K. Nguyen, James Curtis Bagby
  • Patent number: 9760097
    Abstract: Control systems include various combinations of pressure regulators, pilots, and pressure stabilizers to provide systems with adjustable deadbands for over pressure protection, adjustable deadbands for under pressure protection, adjustable deadbands for both over pressure and under pressure protection, pressure assisted closure for over pressure protection, pressure assisted closure for under pressure protection, pressure assisted closure for both over pressure and under pressure protection, or spring assisted closure for over pressure and under pressure protection.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: September 12, 2017
    Assignee: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
    Inventors: Justin Lane Masias, Douglas James Scheffler, Tung K. Nguyen, James Curtis Bagby
  • Patent number: 9759342
    Abstract: A slam shut safety device includes a valve body, a valve disc, a reset pin, and a reset pin guide. The valve disc is disposed within the valve body and shiftable along a slam shut axis between an open position and a closed second position. The reset pin is operatively coupled to the valve disc and shiftable along the slam shut axis relative to the valve body between an untripped position placing the valve disc in the open position and a tripped position placing the valve disc in the closed position. The reset pin guide supports one end of the reset pin, thereby providing added structural integrity to the reset pin and valve disc.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: September 12, 2017
    Assignee: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
    Inventors: Eva Gota, Tiberiu Moldovan, Tung K. Nguyen
  • Patent number: 9739408
    Abstract: Noise attenuation apparatus for fluid devices are disclosed herein. A noise attenuation apparatus includes a first plate having a plurality of first openings to reduce noise generated by a fluid flowing through a fluid device and a second plate having a plurality of second openings to reduce noise generated by the fluid. The second plate directly engages the first plate, and the first openings to at least partially align with the second openings when the first plate is in direct engagement with the second plate to define a flow passageway of the noise attenuation apparatus.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: August 22, 2017
    Assignee: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
    Inventors: Joshua Logan Tecson, Tung K. Nguyen, Juan Manuel Diaz
  • Publication number: 20170205015
    Abstract: Noise attenuation apparatus for fluid devices are disclosed herein. A noise attenuation apparatus includes a first plate having a plurality of first openings to reduce noise generated by a fluid flowing through a fluid device and a second plate having a plurality of second openings to reduce noise generated by the fluid. The second plate directly engages the first plate, and the first openings to at least partially align with the second openings when the first plate is in direct engagement with the second plate to define a flow passageway of the noise attenuation apparatus.
    Type: Application
    Filed: January 15, 2016
    Publication date: July 20, 2017
    Inventors: Joshua Logan Tecson, Tung K. Nguyen, Juan Manuel Diaz
  • Patent number: 9678516
    Abstract: A balanced pressure regulator includes a valve body having a fluid inlet and a fluid outlet connected by a fluid passageway. A valve seat is disposed within the fluid passageway. A balanced plug assembly is disposed within the fluid passageway, the balanced plug assembly including a valve plug that cooperates with the valve seat to selectively open or close the fluid passageway, a retainer operatively connecting the valve plug to a valve stem, a diaphragm separating a chamber from the fluid passageway, a central balancing passage that fluidly connects the fluid passageway with the chamber, and a peripheral balancing passage that fluidly connects the fluid passageway with the chamber, the peripheral balancing passage being located between the retainer and the valve plug.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: June 13, 2017
    Assignee: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
    Inventors: Guolei Fan, Biao Zhou, Nian Chun Liu, Jing Zhang, Yang He, Tung K. Nguyen
  • Publication number: 20160356389
    Abstract: Control systems include various combinations of pressure regulators, pilots, and pressure stabilizers to provide systems with adjustable deadbands for over pressure protection, adjustable deadbands for under pressure protection, adjustable deadbands for both over pressure and under pressure protection, pressure assisted closure for over pressure protection, pressure assisted closure for under pressure protection, pressure assisted closure for both over pressure and under pressure protection, or spring assisted closure for over pressure and under pressure protection.
    Type: Application
    Filed: August 13, 2015
    Publication date: December 8, 2016
    Inventors: Justin Lane Masias, Douglas James Scheffler, Tung K. Nguyen, James Curtis Bagby
  • Publication number: 20160327172
    Abstract: An actuator assembly for use with a shut-off valve in a transport or storage system. The assembly is configured to be operatively coupled to a stem of the valve for controlling fluid flow therethrough. The assembly includes a mounting bracket coupled to the bonnet, a mounting sleeve coupled to the stem and movable relative to the mounting bracket, and an actuator having a body and an inlet formed in the body. The body is defined by a first body portion coupled to the mounting bracket and a second body portion coupled to the mounting sleeve and movable relative to the first body portion to expand or contract the body. The inlet is adapted to receive pressurized fluid; the body expands or contracts responsive to the pressurized fluid, and responsive to the expansion or contraction of the body, the mounting sleeve moves relative to the mounting bracket, thereby moving the stem.
    Type: Application
    Filed: May 6, 2016
    Publication date: November 10, 2016
    Applicant: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
    Inventors: Juan M. Diaz, Roy R. Pelfrey, Tung K. Nguyen, Nadim Ahmed
  • Patent number: 9366349
    Abstract: A slam-shut safety device includes a valve body defining a flow path, a valve disc support, and a valve disc that is mounted on the valve disc support and is movable between an open first position spaced away from the valve seat and a closed second position seated against a valve seat. A reset pin is operatively coupled to the valve disc support and is shiftable between an untripped position placing the valve disc in the open position and a tripped position placing the valve disc in the closed position. An anti-rotation assembly is carried by cooperating portions of the valve disc and the valve disc support, with the anti-rotation assembly comprising at least one protrusion and at least one receiving area sized to receive the protrusion, the anti-rotation assembly arranged to stop rotation of the valve disc relative to the valve disc support.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: June 14, 2016
    Assignee: EMERSON PROCESS MANAGEMENT REGULATOR TECHNOLOGIES, INC.
    Inventors: Jeffrey M. Sanders, Tung K. Nguyen, Cristian-Tiberiu Moldovan, Roman Alexandru-Vlad, Tiberiu Moldovan
  • Publication number: 20160123487
    Abstract: A slam shut safety device includes a valve body, a valve disc, a reset pin, and a reset pin guide. The valve disc is disposed within the valve body and shiftable along a slam shut axis between an open position and a closed second position. The reset pin is operatively coupled to the valve disc and shiftable along the slam shut axis relative to the valve body between an untripped position placing the valve disc in the open position and a tripped position placing the valve disc in the closed position. The reset pin guide supports one end of the reset pin, thereby providing added structural integrity to the reset pin and valve disc.
    Type: Application
    Filed: October 22, 2015
    Publication date: May 5, 2016
    Inventors: Eva Gota, Tiberiu Moldovan, Tung K. Nguyen