BLOW MOLDED CONTAINER NECK AND CAP

摘要

The neck (11) of a container has a smooth seal surface (12) engaged by the inner skirt (66) or plug of a cap. The neck (11) of the container is blow molded with the excess trim being cut above the sealing surface. The apparatus for blow molding the container has a blow pin and shear surfaces. Above the sealing surface (12), the neck wall slants outward (13) and then bends upward in a short, tapered stretch (16). The exterior of the neck (11) is formed with shoulders (19, 26) which engage over locking beads (53, 54) on the interior of the outer skirt of the cap.