Patents Assigned to Hitachi Plant Engineering Consruction Co. LTD.
  • Flat membrane disk
    Publication number: 20010025814
    Abstract: The rotary flat membrane disk is constructed in which circular membranes are stretched at both sides of a disk. The disk and the membrane are bonded to each other over the entire periphery by a peripheral bonding part, and they are also bonded to each other by a plurality of partial bonding parts arranged inside the peripheral bonding part. The partial bonding parts are formed like dots of 10 mm in diameter, and are arranged at every 30 degrees on circles of 500 mm and 600 mm in diameter.
    Type: Application
    Filed: February 21, 2001
    Publication date: October 4, 2001
    Applicant: Hitachi Plant Engineering Consruction Co. LTD.
    Inventors: Makoto Oonishi, Naoki Ohkuma, Yutaka Okuno, Yukio Murai