Patent ID: 7754134
Filing Date: 2010-07-13
Classification: B29C

Abstract:
1. An injection molding process used to create a molded piece which comprises: injecting a first volume of heated resin from an injection unit through a nozzle assembly into a mold cavity; filling said mold cavity with said first volume of heated resin; injecting a volume of fluid into said nozzle assembly following said first volume of heated resin; isolating said injection unit from said first volume of heated resin within said mold cavity; utilizing said fluid within said nozzle assembly to provide pressure on said first volume of resin in said mold cavity for a period of time while said first volume of resin hardens into said molded piece, wherein said fluid pressure provided remains in said nozzle assembly and does not enter said mold cavity; preparing a second volume of heated resin within said injection unit during said period of time while said first volume of heated resin hardens into said molded piece within said mold cavity; and ejecting said molded piece from said mold cavity following said period of time.