Abstract: An apparatus for cleaning floor coverings is provided. A sponge is disposed in a downwardly open housing and is adapted to be supplied with cleaning liquid. The fine-pored plastic sponge is held in a supporting frame, the underside of which is provided with rectangularly shaped recesses. The sponge is disposed in the supporting frame, for example under preload, in such a way that it projects partially out of the recesses in the form of bulging rolls, and projects beyond the support surface of the housing and/or of the supporting frame.

Abstract: A foam generator constituting or forming part of a carpet-cleaning apparatus has a foam body and a pressing element which alternately compresses and permits relaxation of the foam body to generate the foam with a cleaning liquid supplied to the foam body from the interior of the device. The foam is driven through apertures into the carpet therebelow.

Abstract: A rug and carpet cleaning apparatus of the type in which a housing is shifted along the floor and is connected to a suction chamber while having rotary brush, carpet-shampoo, massager, and like rotary units which are selectively to act upon the carpet depending upon the function or operation to be carried out. According to the invention, at least two such units are provided on opposite sides of the fulcrum or pivot of a rocker or teeter which is controlled, e.g. by a lever and cable arrangement, to selectively bring one or the other unit into action depending upon the tilt imparted to the rocker. Both units can be continuously coupled to the drive motor which can also be mounted on the rocker.

Abstract: A cleaning apparatus for carpets, upholstery and the like in which a housing is displaceable along the surface to be cleaned and is provided with a motor-driven suction device, a foam-applying device and a pulsating scrubbing (massaging) device, the latter two devices being selectively operational apart from or together with a rotatable brush by control elements. The foam-applying (shampooing) device and the scrubbing device can be selectively coupled to the same motor as is used to drive the brush and the suction device.