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Buffer packing bag

  • US 6,629,777 B2
  • Filed: 11/30/2001
  • Issued: 10/07/2003
  • Est. Priority Date: 11/30/2000
  • Status: Expired due to Term
First Claim
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1. A buffer packing bag comprising:

  • a base made of two substantially rectangular-shaped plastic films placed one on another and heat-bonded along length sides thereof, the base having a first and a second width side;

    a flat air-supplying passage with an air inlet formed along said first width side of the base, said second width side being closed;

    a flat air-inflatable section formed between the two plastic films and beside said air-supplying passage, said air-inflatable section being divided into multiple individual air-inflatable parts formed by heat-bonded lines running parallel to the length sides;

    a flat check valve of plastic film in each of said individual air-inflatable parts functioning to allow and stop air flow between each of said individual air-inflatable parts and said air-supplying passage;

    two air-flowing space-making folds formed in said air-inflatable section permitting the first and the second width sides of the base to be folded together in order to contain an article in the buffer packing bag, each air-flowing space-making fold being formed by heat-bonding to make at least two lines at a predetermined interval crossing each of individual air-inflatable parts; and

    a loading slit for said article formed on the base of the bag by folding inward from the first and the second width sides along the length sides of the base, the loading slit appearing between the first and the second width sides of the base which meet each other after the base is folded along said space-making folds, wherein the bag is inflated by letting air in with pressure through said air inlet and said air-supplying passage and into the air-inflatable section.

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