Patent ID: 7000767

Claim:
An air-packing device inflatable by compressed air for protecting a product therein, comprising: first and second thermoplastic films superposed with each other where predetermined portions of the first and second thermoplastic films are bonded, thereby creating a plurality of air containers, each of the air containers having a plurality of series connected air cells; a plurality of check valves established at inputs of the corresponding air containers between the first and second thermoplastic films for allowing the compressed air to flow in a forward direction; an air input commonly connected to the plurality of check valves to supply the compressed air to all of the series connected air cells through the check valves; and heat-seal flanges that are made of thermoplastic film and are formed on side edges close to both ends of the air-packing device; wherein, through a post heat-seal treatment, predetermined points on said air containers are bonded with one another, and said heat-seal flanges are bonded with one another, thereby creating a container portion having an opening for packing a product therein and a cushion portion for supporting the container portion when the air-packing device is inflated by the compressed air.