Patent ID: 9066558
Filing Date: 2015-06-30
Classification: A43B,Y10T

Abstract:
1. An article of footwear comprising: a bladder and a reservoir, wherein the pressure of the bladder is adjustable and wherein the pressure of the reservoir is substantially constant; an electronically controlled valve including a first fluid port in fluid communication with the bladder and a second fluid port in fluid communication with the reservoir; a pressure sensor associated with the bladder; an electronic control unit for controlling the electronically controlled valve, wherein the electronic control unit receives information from the pressure sensor; and wherein the electronic control unit is configured to operate the electronically controlled valve in an iterative manner to create a first maximum pressure in the bladder during a time period period between a first heel strike and a sequential second heel strike and to create a second maximum pressure in the bladder during a time period following the second heel strike, wherein the second maximum pressure is greater than the first second maximum pressure.