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 form a unitary dispensing body which is adapted to extend from a container and which defines a dispensing orifice and which has an exterior surface that

[ What is claimed is:] [1.] A dispensing system for a container, said system comprising:a dispensing end structure molded from a first material to form a unitary dispensing body which is adapted to extend from a container and which defines a dispensing orifice and which has an exterior surface that in part defines an attachment region surrounding said orifice; anda dispensing valve molded from a second material to define (a) a flexible central portion having a dispensing orifice which opens to permit flow therethrough in response to increased pressure on one side of said valve and which closes to shut off flow through said valve upon removal of the increased pressure, (b) a skirt extending outwardly from said flexible central portion, and (c) a peripheral portion extending peripherally from said skirt, said peripheral portion having been molded against said body attachment region in surface-to-surface contact to create a bond between said peripheral portion and said body attachment region wherein said bond includes a weld defined by the interface solidification of melted portions of said first and second materials so as to locate said valve central portion inwardly of said body dispensing orifice with said valve skirt extending outwardly through said body dispensing orifice, said bond preventing damage-free removal of said valve from said body attachment region.