Patent ID: 7533772

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 the thermoplastic films are bonded, thereby creating a plurality of air containers; a plurality of heat-seal lands each sealing the first and second thermoplastic films in a small area of the air container in a manner, thereby creating a plurality of series connected air cells for each air container and allowing air flow between the air cells; a plurality of check valves for corresponding air containers established 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 air cells through the check valves; at least one pocket formed by a sheet of thermoplastic film bonded to either the first thermoplastic film or the second thermoplastic film at boundaries of the air containers; and a pocket portion created by folding the air-packing device in such a way that a longitudinal end comes to an intermediate portion of the air packing device and heat-sealing the side edges thereof that are overlapped with one another.