Patent ID: 6223933
Filing Date: 2001-05-01
Classification: B05B,B65D

Abstract:
A pressure compensation device for a two-part container which consists of an outer container and an inner container, and the inner container contains an, at least partially volatile, fluid, and the two-part container is disposed in gas-filled surroundings, whereinthe inner container (2) is impenetrable to diffusion to a limited extent vis-a-vis the, at least partially volatile, fluid (3), and is collapsible, and the outer container (1) is impenetrable to diffusion and rigid, andthe outer container (1) is sealingly connected to the inner container (2), anda gas-filled intermediate space (5) is present between the two containers, andat least one channel (7; 11; 23) communicates the gas-filled intermediate space (5) between the outer container (1) and the inner container (2) with the surroundings of the two-part container, andthe, at least one, channel has a cross-sectional surface area with an equivalent diameter of between 10 .mu.m and 500 .mu.m, andthe, at least one, channel, is in length equal to between five thousand times and one tenth of a time, the equivalent diameter of the, at least one, channel.