Patent ID: 8191911

Claim:
An active torsion cartridge, comprising: an axle tube having a first end and a second end; a torsion bar assembly includes a plurality of torsion bars, a first end and a second end, one end of said plurality of torsion bars are pivotally retained in said first end of said torsion bar assembly, the other end of said plurality of torsion bars are pivotally retained in said second end of said torsion bar assembly, said first end of said torsion bar assembly is retained in said first end of said axle tube, said second end of said torsion bar assembly is retained in said second end of said axle tube; a torque arm having a first end and a second end, said first end of said torque arm is attached to said one end of said plurality of torsion bars; an active arm having a first end and a second end, said first end of said active arm is attached on the other end of said plurality of torsion bars; and means for positioning is attached to a second end of said active arm to position an angular orientation of said second end of said torque arm relative to a centerline of said torsion bar assembly, said active arm simultaneously supports a torque load in both clockwise and counterclockwise directions.