Patent ID: 7946428

Claim:
A screen panel center retainer system for use in a vibrating separatory machine and comprising: at least a first center retainer, said at least first center retainer including a center retainer base with an upper surface and a lower surface; a center retainer channel in said at least first center retainer and defined by upwardly diverging first and second retainer channel legs, said first and second retainer channel legs diverging upwardly from an apex at said upper surface of said center retainer base; a plurality of through bores in said center retainer, each said through bore passing through said apex of said first and second retainer channel legs and through said retainer channel base, each said through bore having a first bore section of a first diameter and a second bore section with a reduced diameter portion; a plurality of expansion sleeves passing through at least some of said plurality of through bores and being adapted to be engageable with a structural member of the vibrating separatory machine upon which said center retainer base lower surface is engageable, each said expansion sleeve having a sleeve body with an expansion sleeve upper flange, each said expansion sleeve body being adapted to pass through both said first body section and said second body section, said expansion sleeve upper flange being sized to pass through only said first body section and to not pass through said second body section reduced diameter portion; plurality of expansion pins, each said expansion pin being receivable in one of said expansion sleeves; and a locking strip including a locking strip top and a locking strip wedging tongue depending from said locking strip top, said locking strip wedging tongue being receivable in said center retainer channel.