Patent ID: 7862102

Claim:
An apparatus for reducing atmospheric drag on a moving vehicle, comprising: a fixed diverter mounted on a rear portion of the vehicle; and at least one movable diverter mounted on the rear portion of the vehicle and having a retracted position and an extended position; wherein the at least one movable diverter is biased to the retracted position and rests over the fixed diverter when in the retracted position, wherein the at least one movable diverter extends inwardly behind at least a portion of a back edge of the vehicle when in the extended position; and wherein the fixed diverter presents a triangular cross section and each of the at least one movable diverter is comprised of three diverter sections which are stacked atop the fixed diverter in the retracted position, the fixed diverter being rotatably connected to one of the diverter sections, the diverter sections being rotatably and sequentially connected to each other when deployed, the diverter sections form a curve which directs air flow to the rear of the vehicle.