Patent ID: 6830721
Filing Date: 2004-12-14
Classification: B29C,B29L,B65D,Y10S

Abstract:
A method of producing a liquid dispensing one-piece closure having as parts an end wall, a dispensing aperture through the end wall and a spout extending upwardly from the end wall, a peripheral skirt for attaching the closure to a container and a flap integrally attached to the top of the end wall by a living hinge for covering and uncovering the spout for dispensing comprising assembling mold elements to form a cavity to mold the parts of said one-piece closure, the mold cavity elements including a master slide and a subslide carried in the master slide, using the subslide to form the interior of the spout and the master slide to form an underside of the flap in an upstanding orientation generally perpendicular to the end wall and a portion of an upper side of the end wall situated between the spout and hinge, releasing the one-piece closure from the mold cavity by moving the subslide out of the spout and thereafter moving the master slide, carrying the subslide, away from the upstanding flap.