Patent ID: 7445117

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; the plurality of air containers including a plurality of heat-seal lands each bonding the first and second thermoplastic films; wherein each of the heat-seal lands divides one of the air containers into a plurality of connected air cells in a manner that allows air flow between the air cells; a plurality of check valves established between the first and second thermoplastic films, each of the check valves corresponding respectively with one of the air containers, for allowing the compressed air to flow into the air containers during inflation; an air input commonly connected to the plurality of check valves to supply the compressed air to the air cells through the check valves; wherein the plurality of heat-seal lands form a triangle area, and the air-packing device is foldable at the heat-seal lands that form the triangle area, thereby creating an inner space for packing a product therein; and wherein the air cells of the air-packing device are inwardly foldable when packing the product therein, and wherein the air cells at the triangle area are inwardly foldable in such a way that the air cells at the triangle area are overlapped with one another, thereby creating a sufficient packing force for the product to be protected.