Abstract: A device for suctioning up and removing a contaminated liquid, especially dirty water, with a vacuumized tank having at the top at least one vacuum connection that communicates with a suction fan and a suction connection that communicates with a supply hose and at the bottom at least one outlet that can be closed off to prevent air from entering from outside. An outlet mechanism downstream of the outlet and controlled by the pressure of the air in the vacuumized tank keeps the liquid flowing out through the outlet even when there is a vacuum in the vacuumized tank at least for a prescribed length of time, during which it ensures that the outlet pressure represented by the sum of the liquid's hydrostatic pressure and the pressure of the air in the vacuumized tank is as high or higher than the counteracting air pressure downstream of the outlet.

Abstract: A device for cleaning large-area textile coverings, especially carpets and carpeted floors. The device has a rinse chamber that can be placed against the textile covering and slid over it, is open at the bottom, and has walls (8.11-8.12 & 8.21-8.22) that are double all the way around. The continuous space (8.3) between the outer and inner wall communicates with a vacuum space through a suction connection (12.1), creating an essentially annular suction nozzle that is open at the bottom. The rinse chamber rests against the textile covering (7.2) on at least the bottom edge of its outer wall, which is provided with sealing surfaces (8.112 & 8.122). Spray nozzles (13) and ultrasonic generators (16) are positioned in the space inside the rinse chamber (8). The water level (W) inside the rinse chamber (8) is regulated to keep the spray nozzles and ultrasonic generators immersed in the water. The dirty water emerging at the bottom edge of the inner wall (8.21 & 8.22) is constantly suctioned off.

Abstract: An improvement is disclosed in an apparatus of the type employed for cleaning textile coverings, especially rugs and carpeting where the apparatus is provided with at least one spray jet connected to a supply of cleaning fluid and a suction jet is connected to a dirt-laden fluid receptacle. Apparatuses of this type have at least one suction turbine connected to and actuated by a motor where the suction turbine has a suction pipe in fluid communication with a receptacle for dirt-laden fluid typically dirty water. According to the invention, the receptacle for the dirt-laden fluid is divided into a plurality of interconnecting vacuum chambers by use of vertically disposed partitions, each of which vacuum chambers is in fluid communication with a common sump disposed therebeneath. The partitions extend vertically over most of the height of the chambers. Each of the vacuum chambers is in fluid communication with its own suction turbine via a suction pipe entering the vacuum chamber.