Patent ID: 7942272
Filing Date: 2011-05-17
Classification: B07B,E21B

Abstract:
1. A screen system suitable for use in a vibratory screen apparatus comprising: a basket having a clamping system and a screen element disposed on a support frame, said support frame being permanently secured in said basket and provided with spaced apart first and second elongate frame elements including a support face and further elongate frame elements extending between said first and second frame elements for supporting a mesh panel of said screen element, wherein said mesh panel including first and second elongate support members extending along opposite end portions of said mesh panel, said first and second support members including a clamping force receiving face and a frame element engaging face, said first and second support members being formed and arranged for secure interengagement with said first and second frame elements, with at least one of said first and second support members and said support face being formed and arranged so that when said at least one first and second support member is clamped to said support face of the respective one of said first and second frame elements by said clamping system, said at least one first and second support member is subjected to a force component substantially in the principal plane of said mesh panel, so that said mesh panel is securely held under tension against said further frame elements and wherein at least one of said clamping force receiving face and said frame element engaging face, of said first and second screen support members is inclined relative to a principal plane of the screen element, so that when a clamping force (C) is applied by said clamping system to said first and second support members, said support members are clamped into engagement with said first and second frame elements, and a force component is exerted on each of said support members to as to slide them away from each other in a single operation.