Patents Assigned to Membrane Products Kiryat Weizman Ltd.
  • Process for producing a tubular membrane assembly
    Patent number: 6077376
    Abstract: The invention provides a process for producing a tubular membrane assembly comprising helically winding at least one strip of fibrous material on a mandrel to produce at least a single ply tubular support member for a semi-permeable membrane, characterized by passing the strip through a heated section of the mandrel during the helical winding thereof to flatten and smooth fibers protruding along the cross-sectional width of the strip, whereby a tube with a smooth inner bore along its entire length is formed.
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: June 20, 2000
    Assignee: Membrane Products Kiryat Weizman Ltd.
    Inventors: Reuven Katraro, Charles Linder, Mara Nemas