CLOSURE HAVING INVERTED FRANGIBLE VALVE

摘要

The present invention is directed to a closure for a container. Among the embodiments provided herein, a cap for a container used on a water dispenser has a roof portion, a cylindrical skirt, and a well extending from the roof portion into the cap. The well has a wall structure (62c) terminating at a base structure (89) that has a shape defined as comprising an annular rim (90) connected to the wall structure and either a frusto-conical member (92) having an edge that terminates to a disk shaped member (94), or a dome convex member (96) depending from the annular rim and extending in a direction towards the roof portion. The cap may further include at least two frangible lines (89h) defined on the base structure with scored sections (220) at the ends defined by each frangible line. Alternatively, the cap may have a base structure that includes at least two sections, one of which is dominant (250) and overlaps or is coincident with an edge of the other subservient section (252), the two sections causing the base structure (89i) to be sufficiently sealed during non-use and being deformable when penetrated by a probe to separate and allow dispensing of liquid within the container.