Patent ID: 6756008
Filing Date: 2004-06-29
Classification: B65D

Abstract:
A method for making a cylindrical vial with an inside volume for containing medicine and having a bottom end with a bottom wall and an upper end with an opening adapted to be sealed by a needle-penetrable rubber closure through which a needle can be penetrated, said method comprising:forming said cylindrical vial by an injection molding process using an injection molding die assembly including a core pin, said core pin being in the form of a rod having a cylindrical upper portion with a central axis and a uniform diameter and having a conical bottom portion formed by rotating a leg of a right triangle about said central axis with an apex on said central axis so that said vial will have a cylindrical inside surface with a central inside surface axis and said bottom wall of the vial will have a conical surface inside said vial with an apex on said central inside surface axis and defining a bottommost point of the inside volume of the vial.