A screen assembly for mounting on the outlet end of an extruder for removing foreign particles from an elastomeric material being discharged from the extruder. The assembly includes a screen support member having a plurality of spaced elongated ribs formed integrally with or removably mounted on a surrounding...http://www.google.com/patents/US4918017?utm_source=gb-gplus-sharePatent US4918017 - Screen assembly for screening elastomeric material
