Patents by Inventor Katherine Si

Katherine Si 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).

  • Systems and methods for determining failure in a back pressure balanced relief valve
    Patent number: 12000505
    Abstract: A back pressure balanced relief valve can include a piston, a pressure balancing device, and a pressure sensor. A pressure chamber can be created between the pressure balancing device and the piston. The pressure sensor can be configured to monitor the pressure in the pressure chamber for indications of a potential failure of the balancing device.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: June 4, 2024
    Assignee: Emerson Automation Solutions Final Control US LP
    Inventors: Vishwa Kalyanasundaram, Katherine Si
  • Systems and Methods for Determining Set Pressure and Lift of a Spring-Operated Relief Valve
    Publication number: 20240044416
    Abstract: A spring-operated relief valve can include an adjustable main spring to bias the valve closed and a load cell that is configured to measure a force exerted by the main spring. Measurements from the load cell can be used to determine a set or crack pressure in the spring-operated relief valve, and to monitor operation of the spring-operated relief valve.
    Type: Application
    Filed: October 17, 2023
    Publication date: February 8, 2024
    Inventors: Vishwa Kalyanasundaram, Katherine Si, Joe Downing
  • Systems and methods for determining set pressure and lift of a spring-operated relief valve
    Patent number: 11788637
    Abstract: A spring-operated relief valve can include an adjustable main spring to bias the valve closed and a load cell that is configured to measure a force exerted by the main spring. Measurements from the load cell can be used to determine a set or crack pressure in the spring-operated relief valve, and to monitor operation of the spring-operated relief valve.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: October 17, 2023
    Assignee: Emerson Automation Solutions Final Control US LP
    Inventors: Vishwa Kalyanasundaram, Katherine Si, Joe Downing
  • Systems and Methods for Determining Failure in a Back Pressure Balanced Relief Valve
    Publication number: 20230071698
    Abstract: A diaphragm assembly for a pressure relief valve can include a disc guide that is configured to receive a portion of a disc holder, a bonnet adapter, and a diaphragm that is clamped at an outer edge between the disc guide and the bonnet adapter. The diaphragm assembly can be positioned between a bonnet of the pressure relief valve and a valve body of the pressure relief valve to convert the pressure relief valve to a backpressure-balanced pressure relief valve by counterbalancing a backpressure that acts upon the disc holder.
    Type: Application
    Filed: November 16, 2022
    Publication date: March 9, 2023
    Inventors: Vishwa Kalyanasundaram, Katherine Si
  • Systems and Methods for Determining Failure in a Back Pressure Balanced Relief Valve
    Publication number: 20210341078
    Abstract: A back pressure balanced relief valve can include a piston, a pressure balancing device, and a pressure sensor. A pressure chamber can be created between the pressure balancing device and the piston. The pressure sensor can be configured to monitor the pressure in the pressure chamber for indications of a potential failure of the balancing device.
    Type: Application
    Filed: April 30, 2021
    Publication date: November 4, 2021
    Inventors: Vishwa Kalyanasundaram, Katherine Si
  • Systems and Methods for Determining Set Pressure and Lift of a Spring-Operated Relief Valve
    Publication number: 20210262579
    Abstract: A spring-operated relief valve can include an adjustable main spring to bias the valve closed and a load cell that is configured to measure a force exerted by the main spring. Measurements from the load cell can be used to determine a set or crack pressure in the spring-operated relief valve, and to monitor operation of the spring-operated relief valve.
    Type: Application
    Filed: February 19, 2021
    Publication date: August 26, 2021
    Inventors: Vishwa Kalyanasundaram, Katherine Si, Joe Downing