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Improved post mold preform cooling with annular air jet streams

IP.com Disclosure Number: IPCOM000008069D
Publication Date: 2002-May-15

Publishing Venue

The IP.com Prior Art Database

Abstract

This invention broadly relates to in-situ cooling of an injection molded article using annular air jet streams. In particular, this invention relates to in-situ cooling of a preform on a mold core using annular air jet streams; preforms are used to produce blow-molded bottles. The use of annular air jet streams lengthens the effective jet stream and thereby causes the air stream to stay attached to the preform longer thereby removing more heat from the preform while cooling on cores outside of the mold.