Patent ID: 9718572
Date: 2017-08-01
CPC Classifications: B29C,B65D

Claim:
1. A plastic ampule produced in a blow molding process and filled and sealed in a mold, comprising: a receptacle body; a premolded insert having an outer peripheral surface with a plurality insert surface irregularities each having a bounded base surface, said peripheral surface being a circular cylinder; a sleeve shaped neck part connected to and axially extending from said receptacle body and forming a seat receiving said insert, said neck part being molded onto said peripheral surface of said insert thereby forming a plurality of neck surface irregularities on an inner surface of said seat mating with said insert surface irregularities to lock positively said insert and said neck part against translational and rotational movements, said irregularities being laterally projecting nubs and laterally extending depressions on said peripheral surface and said neck part, said nubs being arranged on plural circular lines extending about an axis of said circular cylinder and at an axial distance from one another, said nubs on adjacent circular lines being offset from one another in peripheral directions; each of said nubs having axial and peripheral opposing surfaces; and each of said depressions forming receiving and mating with one of said nubs.