Patents by Inventor Chulho Pang

Chulho Pang 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).

  • Fluid flow control device with valve seat configured to mitigate flashing
    Patent number: 11441686
    Abstract: A fluid control valve includes a housing defining a fluid inlet and a fluid outlet. A valve seat is coupled to the housing and is positioned between the inlet and the outlet. The valve seat includes an end surface, seating surface extending from the end surface toward the seat axis, and a groove surface extends from the seating surface and defines a groove extending around the seat axis. The valve seat further includes an inner surface defining a central bore extending along the seat axis. A spindle is disposed within the housing and is reciprocally moveable between closed and open positions within the central bore of the valve seat. The spindle defines a longitudinal axis and includes an outer surface and a plurality of flow passages formed in the outer surface to prescribed lengths and extending in generally parallel relation to the axis of the spindle.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: September 13, 2022
    Assignee: Control Components, Inc.
    Inventor: Chulho Pang
  • FLUID FLOW CONTROL DEVICE WITH VALVE SEAT CONFIGURED TO MITIGATE FLASHING
    Publication number: 20220243824
    Abstract: A fluid control valve includes a housing defining a fluid inlet and a fluid outlet. A valve seat is coupled to the housing and is positioned between the inlet and the outlet. The valve seat includes an end surface, seating surface extending from the end surface toward the seat axis, and a groove surface extends from the seating surface and defines a groove extending around the seat axis. The valve seat further includes an inner surface defining a central bore extending along the seat axis. A spindle is disposed within the housing and is reciprocally moveable between closed and open positions within the central bore of the valve seat. The spindle defines a longitudinal axis and includes an outer surface and a plurality of flow passages formed in the outer surface to prescribed lengths and extending in generally parallel relation to the axis of the spindle.
    Type: Application
    Filed: February 4, 2021
    Publication date: August 4, 2022
    Inventor: Chulho Pang