US Patent 7959173 Air distribution apparatus

An air distribution apparatus for directing at least two different air pressure supply sources to fill and exhaust at least a first volume of air and a second volume of air. The apparatus includes a housing and a valve assembly that is disposed within the housing. The valve assembly is movable between a first position, wherein a non-regulated air input port is in communication with a first volume of air to inflate the first volume of air while an exhaust port is in communication with a second volume of air to exhaust the second volume of air, and a second position, wherein a regulated air input port is in communication with the second volume of air to inflate the second volume of air while the first volume of air is in communication with the second volume of air to exhaust air from the first volume of air to the second volume of air.