Patent ID: 6620444
Filing Date: 2003-09-16
Classification: B65D

Abstract:
Two-compartment container, comprising a surrounding outer side wall, an inner side wall that separates the two compartments, a base part and a top part, wherein at least one of said base part or top part has such side walls which extend such that(a) upon connecting the top part to the base part, a first compartment defined by the inner part of the base, the inner side wall which is a surrounding inner side wall and the inner part of the top and a second compartment defined by an outer part of the base, the inner side wall, the outer side wall and an outer part of the top are provided; wherein the top and/or outer side wall of the second compartment comprises at least one small orifice for slow equilibration of pressure between the inside thereof and the outside of the two-compartment container; wherein the outer side wall is connected to the base part or top part via closure means, and the inner side wall tightly fits to the base part or top part; wherein gas or liquid cannot be exchanged between the first and second compartments; and wherein upon a sudden pressure difference between the outside of the two-compartment container and the inside of the second compartment, the said closure means of the outer side wall will open or break and the inner side wall will no longer tightly fit to said base part or top part, or (b) the two-compartment container has a substantially cylindrical form, wherein the surrounding outer side wall is circular while the inner side wall extends straight-lined and divides the interior into a first and second compartment each having the shape of a half circle as a basis; wherein the top and/or outer side wall of the second compartment comprises at least one small orifice for slow equilibration of pressure between the inside thereof and the outside of the two-compartment container; wherein the outer side wall is connected to the base part or top part via closure means, and the inner side wall tightly fits to the base part or top part; wherein gas or liquid cannot be exchanged between the first and second compartments; and wherein upon a sudden pressure difference between the outside of the two-compartment container and the inside of the second compartment, the said closure means of the outer side wall will open or break and the inner side wall will no longer tightly fit to said base part or top part.