Patents Assigned to Facet Automotive Filter Co.
  • Method of manufacturing highly water absorbent pleated filter laminate
    Patent number: 4787949
    Abstract: A superabsorbent filter medium which is suitable for manufacturing accordian pleated filter cartridges at high production rates and low cost by using a rotary pleater or scoring machine rather than slower blade-type pleaters. The filter medium is a thin laminate of filter paper, superabsorbent resin powder, and tissue papper, rolled together under pressure and bonded with water vapor. Unlike other commercially available superabsorbent filter media laminates, this construction is thin and flexible enough to be rotary pleated at low cost.
    Type: Grant
    Filed: June 30, 1986
    Date of Patent: November 29, 1988
    Assignee: Facet Automotive Filter Co.
    Inventors: Frederic W. Cole, John E. Thurber