Patent ID: 8622219

Claim:
A method of manufacturing screening mats for use in a vibrating screen device that fractionizes crushed stones or gravel, comprising the steps of: A. extruding an elongated screening media strip of a length greater than that of individual mats to be formed therefrom; B. forming apertures in the screening media strip, the apertures extending from a first planar side of the strip to an opposing second planar side of the strip; and C. cutting the apertured screening media strip into individual mats subsequent to step B, wherein the step of extruding includes providing side parts at opposing distal edges of the extruded strip, the side parts being integrated parts of the strip formed in the extruding process and extending outwardly from the second planar side of the strip, and wherein the side parts comprise a first side part and a second side part, the first side part including a pair of projections separated in a direction of the plane of the extruded strip to define opposing interior wall surfaces of a channel, the channel extending along a first of the opposing distal edges of the extruded strip, and the second side part including a single projection.