Abstract: A vacuum cleaner with a closed loop air system is disclosed that is intended for the cleaning of soft-coated floors, such as carpets and rugs. The cleaner includes two main units: a floating foot, containing an intake nozzle and an expanded chamber for the returning air stream, and a managing unit, containing a managing handle and supporting wheels. The floating foot has a seal along its perimeter, enclosing the space between the surface being cleaned and the bottom of the foot from the surrounding space and also contains the expanded chamber for the returning air stream. The foot and managing unit are joined by a universal joint that makes the foot floating, allowing it to swing forward, back, left and right. It also guarantees that the foot is always pressed to the surface being cleaned, independent of the position of the managing unit and handle movement. This guaranteed contact prevents the escape of the air stream, as a working medium, from the closed loop system into the surrounding space.

Abstract: A vacuum cleaner which includes a closed loop air system is disclosed. The closed loop air system has an entering chamber, a fan in communication with the chamber, an electrical motor which drives the fan, a filtering unit connected to the entering chamber via a hose, an air jet nozzle located adjacent the chamber, and a hose connecting the nozzle to the filtering unit. Air laden with dirt and debris is picked up from the surface being cleaned and is sucked into the chamber via the fan. The air is directed to the filtering unit where it removes the dirt and debris. The cleaned air is returned to the nozzle. The air stream is again polluted by dirt and dust and is immediately sucked into the cleaner by the fan into the entering chamber. In a further embodiment, an additional fan or blower is employed to increase the air pressure at the nozzle.

Abstract: A filtering system which essentially includes a generally cylindrical chamber with an inlet nozzle, having openings, located near the bottom of the chamber which extends into the chamber, an activator, a turbine with an axle, both the activator and turbine being located along the axle of the turbine, and an outlet nozzle located near the top of the chamber is disclosed. Air mixed with contaminants enters the chamber through the inlet nozzle via the openings and heads toward the outlet nozzle. Heavier particles fall to the bottom of the chamber. The air rotates the turbine which rotates the activator. As a result of this action, contaminants gather at the sides of the chamber and drop to the bottom of the chamber. A final separation between the contaminants and the air takes place as the air passes through the turbine where a non-penetrable air lock is created at the gap between the turbine and the lower edge of the outlet nozzle, further trapping particles.

Abstract: The present invention is a three stage water-from-air-filter system which can be used in combination with substantially any household vacuum cleaner. The system includes a main cylindrically shaped body and a hollow cylinder within the main body. The main body and cylinder form a ring-shaped chamber. The chamber has a spherical bottom partially filled with water. The hollow cylinder is made of a large pipe and a small pipe. The large pipe has an areohydrodynamic separator. An entrance nozzle may be located on either the main body or on the small pipe. Regardless of where the nozzle is located, polluted air enters the ring-shaped chamber through the nozzle. In the chamber the air mixes with the water. The air and water mixture is centrifugally separated several times through the concentric cylinders within the filter system to ensure a high quality of cleaning.

Abstract: A wire drawing apparatus includes a container having opposing front and rear sides. The front and rear sides each have an opening formed therein. A quantity of dry powdered lubricant is located in the container. A die is positioned adjacent the opening on the rear side of the container. A wire is inserted in the opening in the front side of the container. The wire is pulled through the container and through the die. A permanent magnet is adjustably mounted in the container. Both the wire and the dry lubricant are magnetized by the magnet thereby causing the wire and lubricant to be attracted to one another so that the lubricant is held by the wire as the wire is pulled into the die.