Patent ID: 6228317
Filing Date: 2001-05-08
Classification: B29C,B29K,B29L,B65D,Y10T

Abstract:
A method of making a blow-molded PET plastic container having an externally-threaded wide mouth finish for receiving a removable closure, comprising the steps of:disposing a pre-heated preform in a mold cavity having a surface with a container body forming region, a thread forming region superadjacent said body forming region, and a moil forming region superadjacent said thread forming region, said moil forming region having at least one recess extending radially inwardly of the mold surface immediately superadjacent said thread forming region, said preform having an interior surface and a preheated exterior surface in said thread forming region thereof;distending said pre-heated preform against said mold surface to form an intermediate container article having a moil portion with a flange region extending radially outward of a superadjacent threaded portion thereof,cooling said thread forming interior surface, and severing said moil portion radially between said radially-extending flange region and said threaded portion to produce a wide mouth container.