Patent ID: 6976321
Filing Date: 2005-12-20
Classification: A43B

Abstract:
1. An inflatable inner sole for footwear which comprises: a. an inflatable first enclosure formed of first and second sheets of plastic film bonded together by a continuous seam defining a peripheral flange surrounding a surface field and forming a sealed interior, with a plurality of discontinuous seams extending across said field to form interconnecting, internal passageways within the sealed interior; b. a flexible cover sheet overlying the upper surface of the sealed first enclosure, said flexible cover sheet comprising an underlayer, said underlayer bonded about its periphery to the peripheral flange and unbonded to the field of said upper surface, wherein said underlayer and said peripheral flange become a single homogenous material that cannot be distinguished into said first sheet, said second sheet, and said underlayer of which said material is formed, and wherein a second enclosure is formed adjacent to said first enclosure; c. a padding material disposed within the second enclosure for support and comfort; d. a pump fluidly connected with said sealed interior; and wherein said first enclosure has a first chamber selectively inflated under pressure and said second enclosure forms a second chamber at substantially atmospheric pressure for enhanced comfort.