Patent ID: 7299952
Filing Date: 2007-11-27
Classification: B29C,B29L,B65D

Abstract:
1. A closure for a container having a container neck, the closure comprising: a base having a top with a periphery from which a skirt depends, the base having a valve mount portion formed on the top of the base, the valve mount portion including an attachment surface, the base being made from a first thermoplastic material; a valve made from a second thermoplastic material, the valve having a flexible central portion with at least one valve opening and an outer peripheral portion molded onto the attachment surface, the flexible central portion movable between opened and closed valve positions in which the valve opening is respectively opened and closed; and a lid hingedly attached to the base for rotation between an open lid position and a closed lid position, the lid having an inner surface and a protrusion positioned on the inside surface of the lid so as to be located adjacent to the central portion of the valve when the lid is in the closed lid position to inhibit movement of the valve to the opened valve position, the lid including a sealing rim having a lower tip and formed on the lid to extend downwardly from the inner surface when the lid is in its closed position, the sealing rim spaced outwardly from the protrusion for contact between the lower tip and the outer peripheral portion of the valve, the contact between the lower tip and the outer peripheral portion forming a substantial seal therebetween.