Patent ID: 6808675
Filing Date: 2004-10-26
Classification: A61J,A61M,B29C,B29L,F25C

Abstract:
A method for forming a bag, the steps including:forming a first mold having at least one portal-shaped recess and a recess including a planar surface, a radiused periphery circumscribing said planar surface and a peripheral ledge circumscribing said radiused periphery and oriented parallel to said planar surface, whereby a portal formed by said portal-shaped recess passes into an interior of the bag, placing a blank of sheet material over said first mold, and causing the blank to conform to the mold and retain its conformation, whereby a conformed sheet includes a recess that includes a planar surface, radiused periphery and peripheral ledge, removing the conformed sheet from the mold, closing the recess formed in the conformed sheet with another sheet parallel to the planar surface and containing within said bag thermolabile substances; forming a portal in the mold and bag and sealing at the portal the thermolabile substances in the bag; and subsequently freezing the bag whereby the radiused periphery of the bag dissipates forces due to freezing within the bag.