ANTI-REFILL CLOSURE ASSEMBLY

摘要

An anti-refill closure assembly comprises a closure body having an upper spout portion and a lower fitment portion configured for securement to an associated container. The closure body defines at least one flow passage through which liquid from the container enters the closure body. A reciprocable valve member is positioned within the closure body for movement between opened and closed positions. In the opened position of the valve member, liquid from within the container flows into the closure body through the at least one flow passage, and past the valve member outwardly through the upper spout portion. In the closed position of the valve member, the valve member acts to prevent the reverse flow of liquid from the outer spout portion back through the valve body and into the associated container. The reciprocable valve member acts to permit normal dispensing of liquid from within the container in the open position of the valve member, but acts in the nature of a one-way check valve to inhibit and prevent flow of liquid through the closure body back into the container.

主权项

1. An anti-refill closure assembly, comprising:
a closure body having an upper spout portion, and a lower fitment portion configured for securement to an associated container, said closure body defining at least one flow passage through which liquid from said container enters said closure body, and a valve seat surrounding said flow passage, said closure body including a centrally-positioned guide element; and a reciprocable valve member positioned within said closure body for movement between opened and closed positions, said valve member including a circular valve head configured for engagement with said valve seat defined by said closure body in the closed position of said valve member, said valve member including a valve shaft extending downwardly from said valve head, said valve shaft being slidably mounted in said guide element of said closure body to provide reciprocable movement of said valve member. wherein in said opened position, liquid from within said container flows into said closure body through said at least one flow passage and past said valve member outwardly though said upper spout portion, and in said closed position said valve member acts to prevent flow of liquid from said upper spout portion through said valve body and into said associated container.