Patent ID: 6622514
Filing Date: 2003-09-23
Classification: B29B,B29K

Abstract:
An apparatus for cooling a PVC material, the apparatus comprising:a chamber having an inner surface, the chamber defining an inner space configured for receiving material to be cooled; a rotatable shaft extending through the chamber inner space, the shaft operable for being rotated by a motor; at least one mixing tool coupled to the shaft to rotate with the shaft, the mixing tool adapted to mix the material while rotating around the inner surface of the chamber so the material contacts the inner surface to be cooled thereby; the mixing tool comprising a flexible blade configured for contacting the chamber inner surface, the flexible blade being operable, when the tool is rotated, for flexing backwardly and sweeping across a portion of the inner surface to dislodge an amount of material from the surface portion so that another amount of material may contact the surface portion to be cooled; the flexible blade being made of a material which is present in the material being cooled; the motor operable for rotating the shaft at a speed in the range of 150 to 250 rpm to sweep the material from the inner surface; to thereby provide improved cooling of the PVC material.