Patent ID: 6394784
Filing Date: 2002-05-28
Classification: B23P,B29C,H05B,Y10T

Abstract:
An injection molding nozzle comprising:(a) a nozzle body having an outer surface and at least one melt channel through said body; (b) a first insulating layer disposed on said nozzle body outer surface so as to substantially cover at least a portion of said nozzle body; (c) at least one wire element disposed exterior to and in contact with said first insulating layer, said at least one wire element being connectable to a power supply capable of heating said wire element; and (d) a second insulating layer disposed over said first insulating layer and said at least one wire element, said second insulating layer substantially covering said at least one wire element and at least a portion of said first insulating layer, wherein at least one of said first insulating layer and said second insulating layer is a self-supporting sleeve.