Patent ID: 6903308
Filing Date: 2005-06-07
Classification: B29C,B29K

Abstract:
1. An apparatus for controlling the temperature of plastic materials in a flowable state as it flows through a barrel, said apparatus comprising: a band in communication with the outer surface of said barrel, said band having at least one temperature controlling means to control the temperature of said plastic materials flowing through said barrel and a plurality of interconnected conduit blocks and circumferentially surrounding the perimeter of said barrel, each block of said plurality having an exterior surface, an interior surface, a recessed area on the interior surface , a thickness, air passageways to facilitate the passage there through of a vacuum induced airflow through the recessed area on the interior surface and wherein heating elements are imbedded within the block and a gasket circumferentially surrounding said barrel and positioned between adjacent pluralities of interconnected conduit blocks circumferentially surrounding the perimeter of said barrel.