Abstract: An extrusion nozzle including an outlet port having a single opening with a first region, second region, and a pinched region between the two. The pinched region reduces the dimensions of the extrudate in relation to the dimensions associated with the first and second regions. In that way, the extrudate is joined together but may be easily separated into two separate pieces with dimensions related to the dimensions of the first and second region.

Abstract: An extrusion nozzle and related system and process provide for the formation of an extrudate of material configured as a pair of removably connected shapes. The extrusion nozzle includes an outlet port having a single opening with a first region, second region, and a pinched region between the two. The pinched region reduces the dimensions of the extrudate in relation to the dimensions associated with the first and second regions. In that way, the extrudate is joined together but may be easily separated into two separate pieces with dimensions related to the dimensions of the first and second region. In an alternative embodiment, an extrusion structure includes an inner extrusion nozzle and an outer extrusion nozzle that substantially encompasses the inner nozzle. The outer nozzle is substantially the same as the extrusion nozzle with the single opening outlet port. The inner nozzle is designed to separately extrude an inner material.