Patent ID: 8714952
Filing Date: 2014-05-06
Classification: B29C,B29K,B29L,F16L

Abstract:
1. A system for producing a cylindrical foam article comprising: a die having a die flow channel extending from a first end to a second end of the die and releasably coupled to a die housing of an extruder; an outlet adaptor receivable within the die flow channel, wherein the outlet adaptor includes a first end, a second end and an outlet flow channel defined from the first end to the second end of the outlet adaptor such that the first end of the outlet adaptor is shaped to cooperate with a shape of the die flow channel at the second end of the die to assist in retaining the outlet adaptor and wherein a diameter of the outlet flow channel expands at the second end of the outlet adaptor to create a pressure drop to cause formation of the foamed article; and a die outlet assembly coupled to the outlet adaptor, the die outlet assembly having a substantially conical bore lined with a low friction material, the substantially conical bore configured to receive a polymer from the outlet adaptor and extending through a downstream axial end of the die outlet assembly, wherein the die outlet assembly produces the cylindrical foam article having a natural skin about a circumference of the foam article.