Patent ID: 8100687
Filing Date: 2012-01-24
Classification: B29B,B29C,B29K,Y10T

Abstract:
1. An injection blow molding device comprising at least one mold that can be used for the injection molding of a thin-walled hollow preform comprising a neck, a transition zone and a body, which preform can be converted into a more voluminous hollow body by blow molding, said mold comprising: a countermold defining the internal surface of the cavity; a core located in the cavity and spaced away from said internal surface; a preform impression located between the internal surface of the countermold and the core, which impression will receive the molten material; at least two main preferential flow channels (PFCs); each PFC being bounded, by at least one depression zone on the surface of the core and, by the internal surface of the cavity, said device being characterized in that: the main PFCs are located only in that zone of the impression which corresponds to the transition zone of the preform.