Patent ID: 9522482
Filing Date: 2016-12-20
CPC Classification: B29B,B29C,Y10T

Claim Text:
1. A preform for a plastic container comprising of a conically-shaped body with a convex bottom and at an opposite end—merging directly into a cylindrical neck which ends with a top rim having a thin outer flange extended outward away from the conically-shaped body, wherein a supporting flange is formed extending inward around and from the circumference of an inner wall of the cylindrical neck below the top rim to form a circular closed ring, while an outer wall of the cylindrical neck is entirely even, sidewalk of the conically-shaped body and sidewalls of the convex bottom have a same slope, wherein a thickness of the cylindrical neck increases at a location of the supporting flange, and wherein the supporting flange is used to secure the preform to a preform holder during a preform blowing process.