Abstract: A device for cleaning an inner surface of a workpiece includes a beam of radiation, at least one generating unit for generating the beam, a drive unit for rotating the at least one generating unit about an axis of rotation, where the at least one generating unit is configured with a preferential direction towards the surface to be treated. So that an inner surface of the workpiece can be cleaned with short effect times of the beam, it is provided that an arm connected to the at least one generating unit is provided for inserting the generating unit into the workpiece and that the axis of rotation and the preferential direction are inclined relative to one another.

Abstract: A method for the disinfection of objects includes producing an atmospheric plasma jet inside a space through which a process gas flows and at least partially bombarding a surface of the object with the plasma jet, whereby a disinfecting effect is achieved by way of an energy transfer from the plasma jet to the surface of the object. With this method a more effective surface disinfection is made possible without increasing the quantity of disinfecting agent in itself.

Abstract: A method for coating surfaces, for which a precursor material is caused to react with the help of plasma and the reaction product is deposited on a surface, the reaction as well as the deposition taking place at atmospheric pressure, such that a plasma jet is generated by passing a working gas through an excitation zone and the precursor material is supplied with a lance separately from the working gas to the plasma jet.

Abstract: A plasma nozzle for treating surfaces, especially for the pre-treatment of plastic surfaces, with a tubular, electrically conductive housing (10), which forms a nozzle channel (12), through which the working gas is flowing, an electrode (18), disposed coaxially in the nozzle channel, and a high-frequency generator (20) for applying a voltage between the electrode (18) and the housing, the outlet of the nozzle channel (12) is constructed as a narrow slot (32), which extends transversely to the longitudinal axis of the nozzle channel.

Abstract: A method of removing organic impurities from a surface of a substrate that is used for feeding or processing web material, wherein a jet of an atmospheric plasma is directed onto the surface of the substrate.

Abstract: A rod-like or thread-like material is subjected to a plasma treatment by passing the material coaxially through a plasma nozzle while generating plasma therein.

Abstract: A mechanism for plasma surface treatment includes a rotating head having at least one eccentrically disposed plasma nozzle for generating a plasma jet directed in parallel with the axis of rotation. The nozzle includes a swirl system for swirling the plasma jet.

Abstract: Plasma nozzle, in particular for pretreating surface, including a casing defining a nozzle channel which has an axis and a mouth and through which a working gas is passed, an electrode disposed coaxially in the nozzle channel, and a counter electrode surrounding the nozzle channel, wherein the mouth of the nozzle channel is angled relative to the axis thereof.