Patent ID: 7021920

Claim:
An apparatus for blow molding bottles having a hole formed in a molded interior recess extending from a top face of a bottle neck, said apparatus comprising: a mold having a neck forming cavity defined by an outer peripheral wall and an end flange surface, said mold including a hole in the end flange surface of the neck forming cavity; a recess forming rod slideably disposed within the hole in said mold, said recess forming rod slideable within the hole in said mold from an initial position wherein a face of said recess forming rod is withdrawn into the hole in said mold to an extended position wherein the face of said recess forming rod protrudes into the neck forming cavity of said mold so as to create the molded interior recess in the top face of the bottle neck, said recess forming rod having a hole therein; and a punch slideably disposed within the hole in said recess forming rod, said punch slideable within the hole in said recess forming rod from an initial position wherein a face of said punch is withdrawn into the hole in said mold to an extended position wherein the face of said punch protrudes beyond the face of said recess forming rod into the neck forming cavity of said mold so as to create the hole in the interior recess in the top face of the bottle neck, said punch having an undercut in the face thereof so as to retain a slug of material created as the hole in the interior recess in the top face of the bottle neck is created and having an inner channel formed therein to permit passage therethrough of pressurized air to eject the slug.