Patent ID: 7913853

Claim:
A screen assembly for a vibratory separator comprising: a rigid peripheral frame having an outwardly extending flange, wherein the flange has a flange upper surface and a flange lower surface terminating at a flange periphery; a screen cloth affixed to the peripheral frame; a gasket encapsulating a peripheral edge of the flange on the peripheral frame, wherein the gasket comprises: an outer peripheral section surrounding the flange periphery, wherein the outer peripheral section is made from an elastomer having a filler material, said filler material being sufficiently conductive to block transmission of RF signals; an upper lip extending inward from the outer peripheral section to cover a portion of the flange upper surface; and a lower lip extending inward from the outer peripheral section to cover a portion of the flange lower surface; wherein the outer peripheral section comprises: an upper lip segment projecting inward to partially cover the flange upper surface; and a lower lip segment projecting inward to partially cover the flange lower surface; wherein the upper lip includes a partial upper lip projecting inward from the upper lip segment and contiguously formed therewith and the lower lip includes a partial lower lip projecting inward from the lower lip segment and contiguously formed therewith; wherein the partial upper lip and the partial lower lip are each formed from a white elastomeric material, said partial upper lip and said partial lower lip being made from a different material than the upper lip segment and the lower lip segment; and wherein the outer peripheral section, the partial upper lip, and the partial lower lip are co-extruded.