Patent ID: 6426003
Filing Date: 2002-07-30
Classification: D21D,Y10T

Abstract:
A screening device comprising:a plurality of filter wires each comprising a first section and a second section opposite said first section, said second section having a base portion; at least one longitudinal substantially U-shaped support bar having an upstream portion and a downstream portion defining first and second side surfaces, respectively, a plurality of slots in said first side surface, and a cavity machined in said second side surface in open communication with said slots, said cavity having a substantially flat end surface, and a pair of side surfaces, wherein a thickness of said side surfaces is less than a thickness of said upstream portion; and said second sections of said filter wires received by said slots so that said base portions extend through said slots into said cavity, and said wires are supported by said at least one support bar so that said wires are substantially parallel to each other and define screening openings therebetween adjacent said first sections thereof; and wherein said wires are fixed to said at least one support bar by local deformation of said base portions in said cavities into engagement with said substantially flat end surface.