Abstract: A device for the continuous treatment of surfaces of thin sheet material (24) includes a treatment roller (7) arranged in a treatment chamber (1) operated at a reduced pressure. A pair of guide rollers (17) and (18) guide a web to be treated through the chamber (1). Each guide roller is sealed by a sealing unit (22) and (23) to provide greater pressure reduction inside the chamber. The sealing units are hollow, with vacuum ports (27) exposed to the sealing surface (26) formed with the guide rollers (17) and (18). A corona electrode (14) is arranged in the wall of this treatment chamber (1) in such a manner that its insulation (15) forms one part of the wall, but the high voltage element (16) of the corona electrode (14) is located outside of the treatment chamber.

Abstract: Apparatus for treating the surface of articles such as foils, plates or molded articles by electric brush discharge comprises a first electrode for guiding articles to be treated and at least one facing brush electrode having a quartz coating, which can be connected to opposite potential and is arranged to be cooled by a cooling air flow flowing over the outside thereof. Guide means are provided for guiding the cooling air flow at least partly through the corona along the active discharging side of the brush electrode.

Abstract: A device for the continuous treatment of surfaces of foils (24) includes a treatment roller (7) arranged in a treatment chamber (1). A corona electrode (14) is arranged in the wall of this treatment chamber (1) in such a manner that its insulation (15) forms one part of the wall, but the high voltage element (16) of the corona electrode (14) is located outside of the treatment chamber.

Abstract: A corona treater includes an active electrode which has one or more insulated electrode elements slidably supported by an insulating track. A contact spring connects each electrode element to a conductive electrode bar embedded in the track, and sheet material to be treated is fed through a treatment zone created between an active discharge surface on each electrode element and a bare metal roller electrode.

Abstract: A corona treatment station includes a header which supports an active electrode along the surface of a metal roller electrode. The header is attached to the side assemblies by carriages which translate the header and attached active electrode away from the roller electrode when the header is rotated in either direction. This enables the active electrode to be swung clear of the roller electrode in either direction.

Abstract: A corona treater includes an active electrode which has one or more insulated electrode elements slidably supported by an insulating track. A contact spring connects each electrode element to a conductive electrode bar embedded in the track, and sheet material to be treated is fed through a treatment zone created between an active discharge surface on each electrode element and a bare metal roller electrode.

Abstract: Apparatus for treating the surface of articles such as foils, plates or molded articles by electric brush discharge comprises a first electrode for guiding articles to be treated and at least one facing brush electrode having a quartz coating, which can be connected to opposite potential and is arranged to be cooled by a cooling air flow flowing over the outside thereof. Guide means are provided for guiding the cooling air flow at least partly through the corona along the active discharging side of the brush electrode.