Product container with integral selective membrane

Details Product container with integral selective membrane Product container with integral selective membrane

2006-06-28

2011-11-08

Stashick, Anthony (Department: 3728)

Bottles and jars

Closures

Barrier permeable to gas and impermeable to liquid

C215S308000, C220S370000

Reexamination Certificate

active

08051998

ABSTRACT:
In embodiment, the present invention relates to a cap and container assembly comprising at least one selective gas permeable membrane, wherein the assembly is manufactured so that the membrane is an integral part of the assembly and wherein the membrane is composed of a material for controlling conditions of gas concentration in an internal portion of the assembly when the cap is closed. In another embodiment, the present invention relates to a method of forming a cap and container assembly comprising at least one selective gas permeable membrane that is integral with the assembly comprising: cutting the membrane to a pre-selected form, wherein the membrane is composed of a material for controlling conditions of gas concentration in an internal portion of the assembly when the cap is closed; placing the membrane into a mold by robotic means; and overmolding the assembly about the membrane to form an assembly wherein the membrane is an integral part of the assembly.

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patent: 2002/0056695 (2002-05-01), Boulange et al.
patent: 2003/0102323 (2003-06-01), Lohn
patent: 2007/0051727 (2007-03-01), Holley, Jr.
patent: WO 9503949 (1995-02-01), None

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