High aspect ratio triple-plus warp wire mesh

摘要

A screen (10) for removing undesirable particles from a liquid has a flat parallel array of shute filaments (11) spaced apart less than a preselected minimal linear dimension of the undesirable particles transverse to a parallel array of groups of 3 to 10 warp filaments (13), the warp filaments (13) of each group being oppositely woven about and between the shute filaments (11) taken individually or in pairs to secure the shute filaments (11) and maintain the spaces therebetween, the spaces (15) between groups of warp filaments being greater than the preselected minimal linear dimension of the undesirable particles so that the screen (10) is characterized by rectangular flow apertures (15) therethrough, the diameter of the shute filaments (11) being in the order of at least 1.1 times the diameter of the warp filaments (13) so that the apertures (15) have an aspect ratio ranging as great as 4 to 10 or more, even for filaments having diameter ranging as small as .0070 to .0010 inches or less.