SELF-ADJUSTING PRESSURE RELIEF SUPPORT SYSTEM AND METHODOLOGY

A pressure relief support system (10) utilizes a self-adjusting approach to maintaining generally constant pressure in fluid support bladders (70-76). A constant force, such as from a constant force linen spring (106, 108) or from a counterweight system (238), is applied directed to a fluid support bladder (182) or to a reservoir in fluid communication with such bladder. Plural self-adjusting arrangements tray be provided in a single device for fabricating a support body with sectionalized support. Such arrangements may be incorporated into mattress support systems (68) or into seating arrangements (538) or other alternative uses. By appropriately selecting system components, such as the amount of the constant force applied, the original volume of fluid to which the force is applied, and the reservoir size, pressure dispersion for a patient or supported object of any type may be controlled at a predetermined generally constant point.