Patent ID: 7980392
Filing Date: 2011-07-19
Classification: B07B,E21B

Abstract:
1. A screen assembly for a vibratory separator, comprising: a first layer of screening material comprising a plurality of first warp wires and a plurality of first shute wires intersecting each of said plurality of first warp wires at an angle; and a second layer of screening material comprising a plurality of second warp wires and a plurality of second shute wires intersecting each of said plurality of second warp wires at an angle, wherein each of a first number of said first warp wires is aligned with a corresponding one of said second warp wires at a predetermined angle relative to a plane of said screen assembly, each of a second number of said first shute wires is aligned with a corresponding one of said second shute wires at said predetermined angle, said first number of said first warp wires aligned with said corresponding second warp wires is based on a first preselected wire count ratio, and said second number of said first shute wires aligned with said corresponding second shute wires is based on a second preselected wire count ratio.