Patent ID: 7255555
Filing Date: 2007-08-14
Classification: B29C

Abstract:
1. An injection molding apparatus comprising: a main manifold having a manifold melt channel that includes a manifold inlet and a plurality of manifold outlets, wherein said manifold inlet is in fluid communication with a melt source; a sub-manifold including a sub-manifold plate, a plurality of sub-manifold melt channels and a nozzle plate coupled to said sub-manifold plate, wherein said sub-manifold melt channels include a common inlet in fluid communication with a respective manifold outlet; and a plurality of unheated nozzles, wherein each nozzle includes a nozzle melt channel that has a nozzle inlet, wherein said nozzle plate is configured to directly retain said nozzles such that said nozzle inlets are in fluid communication with respective sub-manifold melt channel outlets, and wherein said nozzle plate does not form part of a sub-manifold melt channel.