Patent ID: 8863408
Filing Date: 2014-10-21
Classification: A43B

Abstract:
1. An article of footwear having an upper and a sole structure secured to the upper, the sole structure comprising: a sole element positioned adjacent to the upper, the sole element having a plurality of projections that extend in a downward direction; an outsole that forms at least a portion of a ground-contacting surface of the footwear, the outsole having a plurality of projections that extend in an upward direction; and a fluid-filled chamber positioned between the sole element and outsole, the fluid-filled chamber including a central subchamber, a peripheral subchamber, and a bonded area separating the central subchamber from the peripheral subchamber, the bonded area further subdividing the central subchamber into at least two portions being in fluid communication with each other, the peripheral subchamber being in fluid communication with the central subchamber, extending at least partially around a periphery of the fluid-filled chamber, and having (a) a plurality of upper indentations that receive the projections of the upper sole element and (b) a plurality of lower indentations that receive the projections of the lower sole element, each upper indentation contacting a lower indentation at a location spaced from both the bonded area and a sidewall of the fluid-filled chamber.