Patents by Inventor Elmer S. Castillo

Elmer S. Castillo 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).

  • Emergency isolation valve control design
    Patent number: 12215722
    Abstract: A control system includes a pneumatic actuator having a spring that is compressible by a gas and connected to the isolation valve, wherein the gas is supplied to the pneumatic actuator along a gas flow path, a solenoid valve operable between an open position and a closed position, wherein the open position permits the gas to flow along the gas flow path to the pneumatic actuator, a partial stroke test device configured to perform partial stroking of the isolation valve upon reception of a signal from a computer by sending the gas to the pneumatic actuator through a needle valve, and a universal operation hand operated valve configured to send the gas to the solenoid valve or to the partial stroke test device.
    Type: Grant
    Filed: March 28, 2023
    Date of Patent: February 4, 2025
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Yousef H. Mubarak, Manoj Chetia, Elmer S. Castillo
  • EMERGENCY ISOLATION VALVE CONTROL DESIGN
    Publication number: 20240328536
    Abstract: A control system includes a pneumatic actuator having a spring that is compressible by a gas and connected to the isolation valve, wherein the gas is supplied to the pneumatic actuator along a gas flow path, a solenoid valve operable between an open position and a closed position, wherein the open position permits the gas to flow along the gas flow path to the pneumatic actuator, a partial stroke test device configured to perform partial stroking of the isolation valve upon reception of a signal from a computer by sending the gas to the pneumatic actuator through a needle valve, and a universal operation hand operated valve configured to send the gas to the solenoid valve or to the partial stroke test device.
    Type: Application
    Filed: March 28, 2023
    Publication date: October 3, 2024
    Applicant: SAUDI ARABIAN OIL COMPANY
    Inventors: Yousef H. Mubarak, Manoj Chetia, Elmer S. Castillo