Patent ID: 7478488
Filing Date: 2009-01-20
Classification: A43B

Abstract:
1. An article of footwear, comprising: a sole; an upper attached to said sole, said upper having an inflatable bladder and a ventilation system formed between two sheets of thermoplastic material sealed together along a peripheral weld line, wherein said inflatable bladder and wherein said ventilation system are separately defined by interior weld lines and said ventilation system includes an interior passageway between the two sheets of thermoplastic material defined by the interior weld lines and a plurality of perforations in one of said two sheets of thermoplastic material; and an inflation mechanism fluidly connected to said ventilation system via an interior passageway defined by the interior weld lines such that fluid flows through the interior passageway and through said plurality of perforations into an interior of the article of footwear.