Stieber, Manfred

The invention relates to a device (10) for treating a liquid with a plasma, the device (10) having a high-voltage electrode (20) and a liquid-permeable ground electrode device (30). The ground electrode device (30) has a flat, conductive area (32) and a porous area (34) arranged on the flat, conductive area (32), the conductive area (32) being liquid-permeable along its area. A discharge space (40) is formed between the ground electrode device (30) and the high-voltage electrode (20).

The present invention relates to a device for plasma-treating hollow bodies, such as bottles, vials, syringes, shut-off caps, etc., in particular with a view to sterilising said hollow bodies, and is equally suitable for various discharge types such as dielectric barrier discharge and discharges with high frequency and microwave excitation.

The invention relates to a device for generating a cold, HF-excited plasma under atmospheric pressure conditions, comprising a metal housing functioning as a grounded electrode in the region of the emergent plasma, wherein an HF generator, an HF resonance coil having a closed ferrite core suitable for the high frequency, an insulating body acting as a gas nozzle, and a high-voltage electrode mounted in the insulating body are disposed in such a manner that they are permeated or circulated around by process gas.

A plasma tool for generating a cold plasma beam (10) is described. The plasma tool is defined by the fact that it has a plasma nozzle, in particular a plasma nozzle which is dimensioned for operation by hand, wherein at least the coil (6) of the adaptation network is integrated into the plasma nozzle, for operation with a high frequency generator in addition to the capacitor C2, while the capacitor C1 can be arranged in the generator itself or in its vicinity.

The present invention relates to a device as well as a system and a method for treating an object, in particular one or more free-form objects, with plasma. The object to be treated can in particular be a raw food such as an egg, fruit or vegetable, or packaging as well, or respectively a cap, etc. Treating the object with plasma preferably serves the object of decontaminating and sterilizing the surface of the object.