Patent ID: 6138838
Filing Date: 2000-10-31
Classification: D21D,Y10T

Abstract:
A screen media for use in screening pulp slurry, the pulp slurry to be screened being fed from a first side of said screen media to a second side of said screen media through a plurality of screening passages, each said screening passage comprising:an inlet contour formed in said first side,a back groove formed in said second side, said back groove in alignment with said inlet contour and having a length,a residual material between said inlet contour and said back groove, said residual material having an end thickness at each end that is greater than a middle thickness,a through-slit in said residual material that extends from said inlet contour to said back groove, said through-slit having a length and a width,a material relief disposed in said back groove that extends into said residual material along said through-slit, said material relief having a length that is less than said length of said back groove, and having a width that is wider than said width of said slit, andwherein said residual material has a substantially uniform thickness along said through-slit.