Patent ID: 7017285

Claim:
An inflatable inner sole for footwear which comprises: a. an inflatable enclosure formed of first and second sheets of plastic film bonded together in 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, wherein the continuous seam and the discontinuous seams lie generally in a plane; b. a layer of flexible plastic overlying and bonded to said inflatable enclosure; c. a flexible cover sheet overlying and bonded to the upper surface of said flexible plastic; d. an inflation system comprising an inlet port and an outlet port communicating with said sealed interior, and a pressure control valve having a valve inlet, valve operator and valve outlet with its inlet communicating with said outlet port; and e. wherein a medial recess is formed by portions of the first and second sheets, a base of the medial recess extending out of the plane, and at least a portion of the inflation system is received in the medial recess.