Patents Assigned to UDN Packaging Corp.
  • Patent number: 8052016
    Abstract: A dual tube container with one way valves comprises an outer tube and a cap, wherein, the tube head of the outer tube is provided with a base plate; the base plate is provided with a left through hole and a right through hole connecting the outer tube and the inner tube; a connector extends downwards from the right through hole, and the inner tube body in the outer tube body is connected to the connector to form the inner tube; a pair of one way valves are fixed in the tube head; an applicator with a orifice is inserted into the tube head; when the cap is put on to close the tube head, the pintle or elastic gasket in the cap sealing the orifice on the daub part of the applicator to prevent the leaking of liquid contents. It is provided with a pair of one way valves, and the inner tube is fixed in the outer tube; via the opening or closing of the pair of one way valves, the contents of the outer tube and the inner tube are permitted or forbidden to flow out.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: November 8, 2011
    Assignee: UDN Packaging Corp.
    Inventor: Ming Yuan Wang
  • Patent number: D1050889
    Type: Grant
    Filed: April 5, 2023
    Date of Patent: November 12, 2024
    Assignee: UDN PACKAGING CORP.
    Inventor: Xiaoying Huang