Abstract: The present invention provides a carpet cleaning system which is convertible between a vacuuming configuration and a liquid cleaning configuration.

Abstract: The present invention provides an air purifying system which both filters and neutralizes odors in the air. A housing includes an inlet, an outlet, and an internal flow path from the inlet to the outlet. The outlet is preferably configured to provide a conical exhaust flow path. Fan means are located within the housing to move air through the housing along the flow path and out of the housing through the outlet. A filter is interposed in and spans the flow path of the housing to filter particulate matter from the air passing through the housing. An odor neutralizing chamber within the housing is partially interposed in the flow path. The chamber contains an odor neutralizing chemical which vaporizes in the presence of air. A mechanism is provided for controlling the amount of odor neutralizing chemical vapor which enters the air flowing through the housing.

Abstract: The specification discloses an improvement in a cleaning head for a hot water extraction system of the type which comprises walls defining a vacuum chamber one side of which is open to the exterior and means for spraying a jet of atomized hot water against the plane of the open side of the vacuum chamber. The improvement comprises means for varying the area of impact of the jet of atomized hot water on that plane. In the preferred embodiment disclosed herein, the spray means is mounted on one of the walls by means of two screws which pass through slots in the spray means and thread into the wall, thereby permitting the distance of the spray means from the plane to be varied.

Abstract: Means for varying the heating rate of an immersion heater in a hot-water extraction unit comprising a solution tank in which an electrical immersion heater is mounted in order to decrease the warm-up time of the unit. In the preferred embodiment, the means comprise (a) a first heating element having a first watt rating; (b) a second heating element having a second watt rating, lower than the first watt rating; and (c) means for selectively actuating one or the other of the two heating elements.

Abstract: This invention relates to steam cleaners for cleaning rugs, upholstery, and the like which comprise (a) a liquids pump, (b) a soap tank adapted to contain a mixture of water and detergent during use of the steam cleaner and having an outlet at the bottom thereof, and (c) means of fluid communication between the outlet at the bottom of the soap tank and the liquids pump.