Patent ID: 7681280

Claim:
A cleaning system having a rigid drive system mounted on a rigid structural frame with a three-point mount and coupled for generating vacuum in a water recovery tank, a high pressure solution hose between a supply of heated and pressurized water-based chemical cleaning solution and a delivery wand for providing the cleaning solution to a target surface, and a vacuum hose for recovering previously delivered cleaning solution from the target surface using the vacuum generated by the drive system, wherein the rigid drive system includes a torque generator having a torque output shaft and a vacuum generator having a torque input shaft, a rigid metal-to-metal structural connector secured between the torque generator and vacuum generator, a coupler assembly coupled for transmitting torque from the torque output shaft of the torque generator to the torque input shaft of the vacuum generator, the three-point mount comprising: at least two spaced apart mounting structures on opposite sides of the torque generator; at least one mounting structure on an external surface of the vacuum generator forming a triangular pattern with two of the spaced apart mounting structures; and means for securing to the rigid structural frame at exactly the three mounting structures that form the triangular pattern.