Patent ID: 6167682
Filing Date: 2001-01-02
Classification: B65B

Abstract:
A method of sealing an opening in a container, which comprises the steps of: (a) deforming a portion of the container adjacent the opening to form an inwardly projecting cylindrical wall; (b) inserting a closure, having an annular sealing portion and conical central portion and an axis, into the opening, the apex of the conical central portion being toward the exterior of the container; and (c) applying axial pressure into to the opening directly against said apex to move said apex a limited distance into the opening to reduce the height of said conical portion of said closure and force lateral portions of said closure to move outwardly so as to engage an inner end of said cylindrical wall and mechanically lock said closure in the opening and hold said sealing portion in sealing engagement with the container and so as to position said conical portion for inversion in response to application of sufficient inward axial force on said apex to cause further movement of said apex into the opening.