Patent ID: 6499600
Filing Date: 2002-12-31
Classification: B65D

Abstract:
A compression sack constituted by non-breathable front and back sheets and having an opening formed in a part of the compression sack, said opening comprising an access port for articles and air outlet, and having a closing means provided therein for tight closing and opening purposes, wherein said access port and air outlet are separated by a separating member at which the front and back sheets are firmly joined together, said separating member extending from a side of the opening inwardly of the compression sack, thereby forming a deaeration passage between the air outlet and the inside of the compression sack, and a spot seal is provided more inwardly of the sack than the end at the interior side of the deaeration passage,wherein an auxiliary deaeration passage is provided more inwardly of the sack than a spot where the separating member and closing means cross each other.