초록 ▼

A dispensing system for a container is provided in the form of a dispensing end structure defining a dispensing orifice and a surrounding attachment region. Subsequently, a dispensing valve is molded from a second material to include (a) a peripheral portion molded against, and bonded to, the end st

A dispensing system for a container is provided in the form of a dispensing end structure defining a dispensing orifice and a surrounding attachment region. Subsequently, a dispensing valve is molded from a second material to include (a) a peripheral portion molded against, and bonded to, the end structure attachment region, and (b) a central portion that extends from the peripheral portion across the dispensing orifice.

대표청구항 ▼

[ What is claimed is:] [1.] A dispensing system for a container, said system comprising:a dispensing end structure molded from a first material to define a dispensing orifice and a surrounding outwardly facing attachment surface which is recessed relative to an adjacent exterior surface portion of s

[ What is claimed is:] [1.] A dispensing system for a container, said system comprising:a dispensing end structure molded from a first material to define a dispensing orifice and a surrounding outwardly facing attachment surface which is recessed relative to an adjacent exterior surface portion of said first material of said dispensing end structure; anda dispensing valve molded from a second material and including(a) a flexible central portion having a normally closed dispensing aperture which opens to permit flow therethrough in response to increased pressure on one side of said valve,(b) a skirt extending from said flexible central portion, and(c) a peripheral portion which (1) has an increased thickness relative to said skirt, (2) is joined to said skirt in a unitary manner, and (3) has a configuration wherein at least part of said peripheral portion has a generally diverging shape transverse cross section, at least part of said peripheral portion having been molded against said body attachment surface in surface-to-surface contact to create a bond between said peripheral portion and said body attachment surface securing said valve on said dispensing end structure so that both said valve flexible central portion and at least a major portion of said valve skirt are located inwardly of said exterior surface portion of said dispensing end structure and so that said valve peripheral portion has an exposed exterior surface free of an overlying clamping attachment structure when a lid, if any, is open.