Abstract: A hand held electrostatic powdered paint spray gun that has a trigger which allows the user to vary the voltage and the paint density supplied to the gun. The trigger is coupled to a potentiometer that provides an output voltage to circuits that control the flowrate of the paint powder and a voltage supply to the paint powder.

Abstract: An apparatus that can recover excess paint powder that is blown onto workpieces by a spray gun. The apparatus has a first duct that is placed near the workpiece across from the spray gun. The first duct is preferably constructed as a collapsible tent that can be hung by a ceiling fixture. The tent extends along the length of any workpiece, to insure that all of the powder is collected. The tent can be attached by merely pulling a cable and hooking the top of the tent to the ceiling fixture. Connected to the duct is a fan that draws air from the area around the workpieces into the duct. The fan and duct are constructed so that all of the excess paint powder is removed from the paint area. The duct has an inner cavity that directs the paint powder to a filter that captures the powder so that the paint can be reused.

Abstract: A liner that covers the inner walls of a spray booth. The liner has cables that extend through holes in the booth. The user can pull the cables and lift the liner, so that the liner covers the inner walls of the booth. The cables are then fastened in place, such that the liner is suspended in an upright position. The liner prevents the electrostatic paint powder from adhering to the walls of the booth. The liner contains elastic material, so that when the cable is unfastened, the liner readily falls into a flat position. The user can then roll up the liner, remove the same from the booth and insert a new liner for a new color of paint. The liner may have ducts to direct the powder within the booth to a paint powder filter. The duct can be readily lifted and collapsed for easy installation within the booth.

Abstract: A liner module that can be coupled to a spray booth. The module includes a liner folded into a portable cabinet. The liner has a zipper that closes a liner cavity. The liner can be unfolded from the cabinet, unzipped and attached to the inner walls of the spray booth. An electrostatic paint gun is typically used to spray paint powder onto an object located within a spray chamber of the booth. The spray gun produces excess paint powder which is drawn into a filter system. The liner is constructed to prevent the excess paint powder from adhering to the inner walls of the spray booth. The module also contains a primary filter that captures the paint powder as the powder is pulled from the spray booth into the filter system.

Abstract: A filter belt assembly located at the bottom of the inner cavity of a spray booth. The filter assembly has a plurality of first sprockets each spaced apart a predetermined distance along a horizontal axis and a plurality of second sprockets each spaced apart a predetermined distance along a horizontal axis. The second sprockets are spaced a predetermined distance from the first sprockets along a vertical axis, wherein each second sprocket is interposed between two adjacent first sprockets such that the sprockets guide a filter belt through the bottom of the inner cavity in a serpentine fashion. The filter assembly has a drive means to move the filter belt and a vacuum unit to remove excess paint powder that is disposed on the belt, as the belt moves from the booth to the vacuum. The filter belt may also have an air blower located under the filter belt where the belt vacuum is located.