Patents Assigned to Sang Wook Kim
  • Automatic pressure reducing valve
    Patent number: 8387654
    Abstract: Disclosed is an automatic pressure reducing valve. A body includes a hollow portion, an inlet portion and an outlet portion for flow of a fluid and has an internal space. A cylinder is installed inside the hollow portion and has at least two holes formed in its wall. An piston is movable along the inner side of the cylinder and adjusts opening rate of the holes according to a fluid pressure difference between an inlet portion and an outlet portion.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: March 5, 2013
    Assignees: Sang Wook Kim, Sun Son
    Inventor: Sang Wook Kim