Patent ID: 7578074
Filing Date: 2009-08-25
Classification: A43B

Abstract:
1. An article footwear having an improved cushioning and cooling means comprising; a shoe with an upper portion and a sole bonded or stitched together which form a chamber for the wearers foot; the sole comprises an elastomeric insole adjacent to the wearer's foot and is topped by a shoe liner, a midsole made of an elastomeric material and an outsole made of an abrasion resistant material; the midsole has a heel region and forefoot region; the heel region of the midsole contains a bladder formed by a hollow in the midsole heel and bonding of an elastomeric material above the hollow; the bladder in the midsole heel is connected to the external air through a first valve and first conduit; the bladder in the midsole is connected through the midsole forefoot region to the area of said chamber beneath the wearer's toes by a two stage adjustable second valve and a second conduit.