The improved apparatus includes an improved extruder die assembly comprising a forming section, an injection section, and a converging nozzle section having axially aligned ridgelines which gradually project into the bore of the nozzle as the nozzle converges to gradually disrupt the axial flow of an...http://www.google.es/patents/US7648352?utm_source=gb-gplus-sharePatente US7648352 - Apparatus for imprinting lines on direct-expanded food products having complex shapes with improved dimensional quality
Apparatus for imprinting lines on direct-expanded food products having ...
