Patents Assigned to National Filtration
  • Filtration screen
    Patent number: 5373615
    Abstract: A caul screen is made with metal cable having a low twist level of between 1 and 5 turns per inch and where the cable is made with filaments that have been coated with brass; the cable is woven into a mesh to form the screen.
    Type: Grant
    Filed: September 1, 1992
    Date of Patent: December 20, 1994
    Assignee: National Filtration
    Inventors: Ian Webb, Ronald A. Findlay