Patent ID: 7118703
Filing Date: 2006-10-10
Classification: B29C

Abstract:
1. An injection molding apparatus, comprising: a manifold having a manifold channel for receiving a melt stream of moldable material under pressure; a nozzle having a nozzle channel in communication with said manifold channel for receiving the melt stream from said manifold channel, said nozzle having a nozzle head and a nozzle tip; a mold plate having a mold cavity and an opening into which said nozzle is inserted; and a heat dissipation device coupled to said nozzle at a location between said nozzle head and said nozzle tip wherein said heat dissipation device is spaced from the mold plate when a temperature of said nozzle is below a predetermined temperature; and wherein said heat dissipation device thermally expands and contacts said mold plate when a temperature of said nozzle is above the predetermined temperature.