Description: A support having adjustable pressure relief zones comprising at least three pressure zones, each having an adjustable pressure relief valve operatively attached to each of the at least three pressure zones. There is at least one cell in a first zone having a first effective fluid volume and at least one cell in a second zone having a second effective fluid volume adjustable to greater than said first effective fluid volume. The greater effective fluid volume is associated with supporting a greater load associated with that said zone and the lower fluid volume is for greater responsiveness.
Patent Details: https://www.google.com/patents/US20080028534?dq=US+2008-0028534+A1&hl=en&sa=X&ved=0CB4Q6AEwAGoVChMI0-Gdpo6YxwIVCDiICh0b7g8P
DOI: N/A