Patents Assigned to TUNG AN DEVELOPMENT LTD.
  • Publication number: 20120096660
    Abstract: A novel cleaning tool is provided. A net-like carrier is twined on an inner cylinder. Protrusions of the inner cylinder are butted again a cleaning unit. With the net-like carrier and the protrusions, a bond between the cleaning unit and the inner cylinder is enhanced to strengthen the whole structure. Thus, stability of high-speed rotation of the cleaning unit is further improved to avoid separating the cleaning unit and the inner cylinder.
    Type: Application
    Filed: July 27, 2011
    Publication date: April 26, 2012
    Applicant: TUNG AN DEVELOPMENT LTD.
    Inventors: Tung-Chung Cheng, Chih-An Ku, Hung-Chia Chen, Jung-Pin Mao
  • Publication number: 20100212100
    Abstract: A cleaning apparatus is provided to clean a sophisticated electric device. The apparatus has cleaning units and each of the cleaning units has a cambered top. Thus, coordinated with an actuating device, a sophisticated electric device can be cleaned by using the cleaning apparatus with cleaning units having cambered tops.
    Type: Application
    Filed: January 11, 2010
    Publication date: August 26, 2010
    Applicant: TUNG AN DEVELOPMENT LTD.
    Inventors: Chih-An Ku, Terry Cheng, Roy Chen