Patent ID: 7228971

Claim:
A vibratory screen assembly comprising a plate including a central portion and first and second plate flanges, the central portion having first and second side edge portions and a first and a second series of finger-receiving apertures located inwardly from said first and second side edge portions, respectively, the first and second plate flanges of said plate located outwardly of said first and second series of finger-receiving apertures, the first and second plate flanges extending from the first and second side edge portions, respectively, of said central portion approximately perpendicular to the central portion of the plate, a screen sub-assembly on said central portion of said plate, and first and second portions of said screen sub-assembly spaced from and overlying said first and second finger-receiving apertures, respectively, and secured to said central portion of said plate inwardly from said first and second finger-receiving apertures and extending toward and attached to said first and second plate flanges, respectively wherein the screen sub-assembly further comprises at least two outer edges formed into planar side planes extending from said first and second portions of said screen sub-assembly parallel to the respective first and second plate flanges and contacting the respective first and second plate flanges.