Patents by Inventor Wu-Chen Su

Wu-Chen Su 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).

  • Air vent plug arrangement having a mounting ring, a plug body, and a plug cap for securing the plug body to the mounting ring
    Patent number: 6732877
    Abstract: An air vent plug for clean container is disclosed, which includes a mounting ring, a plug body, and a plug cap, the plug cap having an inner ring fitted into the plug body, retaining notches forced into engagement with respective hooks of the plug body, an outer ring fitted over the outer surface of the mounting ring, and top hooks extended from the outer ring and hooked on respective pegs at the outer surface of the mounting ring. An O-ring is mounted outside the plug body and stopped between a collar of the plug body and a bottom edge of the mounting ring for sealing. A filter is mounted inside the plug body to prevent contamination from air passing through the plug body and the air vent of the clean container.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: May 11, 2004
    Assignee: Industrial Technology Research Institute
    Inventors: Tzong-Ming Wu, Wu-Chen Su, Sheng-Fu Tsai
  • Air vent plug arrangement for clean container
    Publication number: 20030047562
    Abstract: An air vent plug for clean container is disclosed, which includes a mounting ring, a plug body, and a plug cap, the plug cap having an inner ring fitted into the plug body, retaining notches forced into engagement with respective hooks of the plug body, an outer ring fitted over the outer surface of the mounting ring, and top hooks extended from the outer ring and hooked on respective pegs at the outer surface of the mounting ring. An O-ring is mounted outside the plug body and stopped between a collar of the plug body and a bottom edge of the mounting ring for sealing. A filter is mounted inside the plug body to prevent contamination from air passing through the plug body and the air vent of the clean container.
    Type: Application
    Filed: November 21, 2001
    Publication date: March 13, 2003
    Inventors: Tzong-Ming Wu, Wu-Chen Su, Sheng-Fu Tsai