Patents Assigned to System D&D Co., Ltd.
  • Fluid flow control device
    Patent number: 8950431
    Abstract: Disclosed therein is a fluid flow control device having a cylinder assembly, which includes cylinders overlapped with each other and fluid pathways for controlling flow rate and velocity of fluid, comprising: a first cylinder having a plurality of first fluid pathways of an elongated form horizontally permeating the cylinder from a central axis; a second cylinder disposed on the outer circumference of the first cylinder; and a third cylinder disposed on an outer circumference of the second cylinder.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: February 10, 2015
    Assignee: System D&D Co., Ltd.
    Inventor: Young Bum Kim