Patent ID: 6554602
Filing Date: 2003-04-29
Classification: B29B,B29C,B29K

Abstract:
A machine for blow molding a bottle with an internal web structure positioned between two handgrip depressions utilizing a preform having a neck portion with an open end, a body portion depending from said neck portion, a bottom portion depending from said body portion and forming a closed end, the neck portion, body portion, and bottom portion defining a hollow space and having a common longitudinal axis extending therethrough, and an internal web portion extending completely across said hollow space between opposing sides of at least a portion of the body portion, said machine comprising:a) an in-feeder, said in-feeder feeding the preform into said machine; b) a heating station including at least one heating source and at least one reflector positioned to selectively impart heat to the internal web portion while preventing over-heating of the body portion of the preform as the preform is conveyed therethrough; c) an inflating station having a blow mold, said blow mold including surfaces defining a cavity of a bottle shape with handgrip depressions; and d) means for enhancing cooling of the internal web portion after inflating the preform in said inflating station into the shape of a bottle having handgrip portions and before removal from said blow mold.