Patent ID: 8011642

Claim:
A cruising aerator comprising: a raft; a motor mounted on the raft; a sequential controller connected to the motor for controlling the motor to rotate clockwise or counterclockwise; a shaft having a first end and a second end and driven by the motor; a first impeller mounted on the first end of the shaft; a second impeller mounted on the second end of the shaft; and a common chamber having a first outlet corresponding to the first impeller, a second outlet corresponding to the second impeller, and a common inlet disposed under a water surface, wherein the motor, the shaft, the first impeller, and the second impeller are installed inside of the common chamber, wherein the first outlet and the second outlet are arranged to face in opposite directions, and the first impeller and the second impeller are assembled to have opposite normal rotating directions to each other according to a rotating direction of the motor.