Patent ID: 6238201
Filing Date: 2001-05-29
Classification: B05B,B29C,B29K,B29L,B65D,Y10T

Abstract:
Apparatus for blow-molding a hollow plastic container having an atmospheric vent in the bottom of the container, said apparatus comprising:a pair of mold halves that are closable to form a blow mold cavity,each of said mold halves including a bottom portion with a radial recess that cooperates with the recess of the bottom portion of the opposing mold half to form a slot for pinching a central portion of a parison between the mold halves but not severing the parison,a tail puller mechanism on each of said mold halves for grasping a tail portion of the parison that extends from said slot between said mold halves, andmeans for actuating said tail puller mechanisms when said mold halves are closed to grasp and pull the parison tail portion extending from said slot, and thereby sever the tail portion from the parison, to leave an atmospheric vent in the bottom of the container formed between the mold halves corresponding to the geometry of said slot.