Patent ID: 7316321
Filing Date: 2008-01-08
Classification: B01D,B07B

Abstract:
1. A screen for use in a vibrating machine for separating particulate material from liquid material comprising: a) a rigid rectangular support frame of metal coated with plastics material or reinforced plastics material; b) an array of orthogonal rigid interstices made of metal coated with plastics material or reinforced plastics material and mounted in the frame to define a plurality of similar sized rectangular openings; c) an uncalendered wire cloth having a greater number of warp wires than welt wires per given area, so as to define a plurality of rectangular apertures each having a length to width ratio of between approximately 2.7 to 2.8, the ratio of the length to the diameter of the wire being approximately 5.5 to 5.7; d) said uncalendered wire cloth embedded in said plastics material of said frame and said interstices so as to be under tension in both warp and weft directions.