Patent ID: 7682996

Claim:
A screen comprising a first woven screen cloth having first metal threads; a second woven screen cloth in juxtaposition with the first woven screen cloth and having second metal threads; material fusible below a temperature at which the first woven screen cloth is heat affected fused to interlock the first woven screen cloth and the second woven screen cloth at first spaced locations encapsulating lengths of the first metal threads with a plurality of first metal threads between the encapsulated lengths of first metal threads not being encapsulated; a third woven screen cloth in planar juxtaposition with the second woven screen cloth and having third metal threads and knuckles on the third metal threads, the third metal threads having surfaces coating which are fusible below a temperature at which the first and second woven screen cloths are heat affected, the fusible surfaces coating being fused into the second woven screen cloth at least at some of the knuckles of the third woven screen cloth at second spaced locations other than the first spaced location, encapsulation short lengths of second metal threads and not being fused into the first woven screen cloth, the second woven screen cloth having finer mesh than the third woven screen cloth at second spaced locations other than the first spaced locations, encapsulating short lengths of second metal threads and not being fused into the first woven screen cloth, the second woven screen cloth having finer mesh than the third woven screen cloth.