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: The present invention relates to a method for generating a low-pressure plasma, in which a partial vacuum is generated by means of a vacuum pump in a low-pressure chamber, and a plasma jet is introduced at higher pressure into the low-pressure chamber. The present invention also relates to various applications of the low-pressure plasma for surface pretreatment, for surface coating, or for treating gases. The present invention also relates to a device for generating a low-pressure plasma.

Abstract: A method for treating the surface of a work piece includes exposing the surface to be treated to a beam of electromagnetic radiation, and simultaneously exposing an area of the surface exposed to the beam of electromagnetic radiation at least partially to a plasma beam. This method provides an improved pretreatment, in particular cleaning of the surface of a work piece, by, at least in part, energy density enhancements of each of the beam of electromagnetic radiation and the plasma beam.

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 method for opening or sealing glass ampoules (38) by melting the glass with the help of a jet (36) of a hot medium, characterized in that the medium is an atmospheric plasma, produced by an electric discharge.

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 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, wherein 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 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 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 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.

Abstract: Fixture for the heat-sealing of foils along a weld joint, including a plasma nozzle (10) and a conveying device which generates a relative movement between the plasma nozzle and the foil layers (42, 44) along the weld joint.

Abstract: A surface of a workpiece is treated by electric discharge. In particular, a concentrated plasma jet is generated through an arc discharge by a non-transferred electric arc while feeding--in a working gas. The surface of the workpiece to be treated is brushed over by the plasma jet.