Patent ID: 7887655
Filing Date: 2011-02-15
Classification: B65B

Abstract:
1. A method of enveloping fluid with thin films comprising the step in sequence of: step a: locating an upper thin film on a cavity of a punch holder and putting the punch holder in a vacuum chamber; step b: locating a lower thin film on a die cavity of a die holder, wherein the upper thin film has a peripheral circumference corresponding to that of the lower thin film; step c: pouring a fluid at the lower thin film after the die holder is moved into the vacuum chamber; step d: sealing the vacuum chamber having the punch holder and the die holder; step e: extracting the air in the vacuum chamber out until the vacuum chamber is close to a vacuum state; step f: driving the punch holder and the die holder to corresponding positions for contact joint of the upper and the lower thin films; and step g: hot-pressing the peripheral circumferences of the upper and lower thin films for enveloping the fluid therein under a vacuum condition.