Abstract: The cleaning apparatus has a body with two wheels on opposite sides of the body which are driven by two electric motors for moving the body forward or rearward or for turning the body. A cleaning device which uses pressurized air is supported by the body for providing a cleaning function for cleaning the inside of the duct. The cleaning device is supported by a support member. Another electric motor is employed for moving the support member upward and downward. Lights and a video camera are located at the front of the body for allowing the duct to be monitored and inspected by way of a remote video screen. Electrical leads are coupled to the motors to the lights and to the camera for remote control purposes. A conduit is coupled to the cleaning device for supplying air under pressure to the cleaning device.

Abstract: The cleaning system has a head to which water is applied for cleaning carpets, etc. The head has a water nozzle for injecting hot water on the carpet, etc. and a vacuum inlet with vacuum hose coupled to a vacuum container. A lid having an outlet is provided for covering the top of the container. A hose is connected to the lid outlet and to a vacuum blower. A lid conduit forming the lid outlet extends through the lid with inlet openings formed through the lower portion of the outlet conduit. A chamber extends from the lower side of the lid surrounding the lower portion of the lid conduit with a bottom wall located below the lower portion of the lid conduit. A plate is connected to the bottom of the lid conduit and extends outward forming a dead space between the plate and the bottom wall of the chamber. An opening is formed through the side wall of the chamber for passage of air from the container into the chamber and to the vacuum device.