Abstract: A single chamber type coating and baking apparatus which includes a chamber having one opening through the ceiling and two openings through the floor. A means for discharging the air within the chamber to the outside is connected to one of the openings through the floor. There are means for generating and directing hot wind toward the opening in the ceiling, and a means for recycling the air in the chamber to the hot wind generating means which is connected to the inlet side of the means for generating hot wind at one end and at the other end to one of the openings in the floor part of said chamber. Also, a means is provided for introducing fresh air into the system and is connected to the recycling means.

Abstract: The invention relates to the continuous treatment of a washing liquid for a gas laden with particles. The particle-laden liquid after washing is recycled and used again in admixture with clean liquid.

Abstract: A cabin for an electrostatic powder coating installation comprising a filter communicating with an internal compartment or space of the cabin, the side of the filter facing away from such internal compartment being exposed to the action of a negative pressure. A cleaning device is operatively associated with the filter. The cleaning device and the filter are relatively movable with respect to one another. The filter is constructed as a rotatable filter drum arranged in a chamber bounding and connected with the internal compartment of the cabin. There also is provided a stationary suction nozzle spanning the filter drum along a generatrix or surface line, and the suction nozzle is connected via a separator with a suction blower.

Abstract: A ventilated enclosure, for example a paint-spraying booth, is divided into two or more zones by one or more isolating curtains of rapidly-flowing air. One longitudinal curtain is used on each side of the object to be treated in the enclosure, to provide a central longitudinal zone for the surface treatment process and two side zones for the workmen. The two curtains converge downwardly toward each other so that the ventilating air flowing downwardly between the curtains exits from the central zone largely by way of the space between said objects. Transverse curtains and/or additional longitudinal curtains may also be used with special advantages, particularly when the speeds and positions of the curtains are specially selected.

Abstract: An improved hot end glass container coating system comprises a conveyor for transporting hot glass containers, first and second pairs of spray coating units and exhaust units reversely opposed adjacent the sides of the conveyor, an air flow control unit and a coating liquid measuring and flow control unit.

Abstract: A spray-painting chamber comprises a vertical wall containing an upper opening and a lower opening. Means are provided to supply water to the top of said wall so as to produce a film of water running down the wall. Means are provided for sucking the paint mist from the spray-painting chamber through said openings. When passing through said openings the paint mist mixes with the water, resulting in the paint drops being absorbed by the water. Of the total water quantity 30-60% is drawn in by the paint mist through the upper opening. A tank is provided below said wall to receive the water-paint mixture. The paint separates from the water in said tank. The water is re-used by being pumped to the top of said wall.

Abstract: Apparatus for purifying the air laden with paint particles for use in a paint spray booth, comprises a vertical duct having a mixing chamber at one end. The chamber has a horizontal wall formed with one or more straight or curved slots at which a spray or washing liquid and the air stream are directed to atomize the washing liquid. An upright guide structure in the mixing chamber defines a narrow passage or passages in which the impurities are removed from the air stream by the atomized liquid.

Abstract: A spray-finishing system including a tunnel through which objects to be finished longitudinally move and a chamber under the tunnel and in communication with the tunnel through the grill-type floor. The chamber is exhausted by conventional exhaust fan techniques. The improvement comprises a longitudinally extending divider dividing the chamber into lateral subchambers from which the air is exhausted. The divider provides, for each subchamber, a longitudinally and downwardly extending wall surface terminating at its lower extremity into a laterally relatively narrow trough which is relatively steeply inclined longitudinally downwardly. In each subchamber, a longitudinally extending, inwardly and downwardly sloping panel is provided having a distal edge spaced apart from the wall surface to provide a longitudinally extending, laterally narrow slot through which the air drawn from the subchamber moves.

Abstract: The disclosure is directed to a spray booth for electrostatic power coating processes, including a hopper section, and a removably secured housing section. The housing portion consists of a basic skeleton of structural supporting members, to which are removably attached a plurality of standard size panel modules. The panel modules may, for example, be closed wall panels, may include an access door, may provide a sealed access slot for a reciprocating coating applicator, may have louvered air controlled panels, etc. The modular panels may be assembled in various combinations, so that an essentially standard spray booth structure may be easily customized to the specific needs of the user. The spray booth is also constructed and arranged to provide an inwardly shingled relationship of wall forming elements, such that powder overspray tends to fall by gravity into the hopper section of the booth, without contacting any upwardly facing horizontal or near horizontal surfaces.

Abstract: A paint spray booth for removing excess atomized paint from the air in the vicinity of a spray painting operation comprises a spray booth structure having a working or spray painting area, an exhaust chamber and an exhaust stack, which together define an air passage having an inlet at the spray painting area and an outlet at the stack, within which a fan is mounted for drawing air through the inlet and out the outlet at high velocity. A plurality of generally vertical baffles are disposed in the passage between the spray painting area and the exhaust chamber for the purpose of removing overspray or excess atomized paint from the air before it is exhausted out the stack. Mineral oil is continuously flowed over the front surface of the baffles so as to entrain therein paint solids in the air stream, and the oil is received in a reservoir or holding tank wherein the paint solids are allowed to settle, and from which the oil is recirculated for downward flow over the baffles.