US Patent 7757814 Ladder stabilizer

A ladder stabilizer for ladders with tubular rungs, includes a rigid stabilizer bar having a top, a bottom, a first end and a second end. A first leg extends downwardly below the bottom of the stabilizer bar at the first end and a second leg extends downwardly below the bottom of the stabilizer bar at the second end. A rung attachment bar is provided which is adapted to extend through a tubular rung of a ladder. The rung attachment bar has a first end and a second end. Clamps are provided for securing the rung attachment bar in parallel spaced relation to the stabilizer bar.