US 9,756,712 B2Granted

Device for treating a surface with a plasma

AssigneeCinogy GmbH

InventorsDirk Wandke, Leonhard Trutwig, Mirko Hahnl, Karl-Otto Storck

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Abstract

A device for treating a surface with a dielectric barrier plasma, wherein the surface functions as a return electrode, having a housing (1), in which a high-voltage feed line, an electrode (8) which is connected to the high-voltage feed line, and a dielectric (9), which screens the electrode (8) with respect to the surface, are located, permits the plasma treatment of highly curved surfaces and of relatively large surface areas by virtue of the fact that the electrode (8) has the shape of a circle which is mounted in the housing (1) so as to be rotatable at least to a limited degree, and projects with a spherical section from an end-side opening (5) in the housing (1), and in that the electrode (8) is coated with the dielectric (9) in such a way that its spherical section projecting out of the housing (1) is covered by the dielectric (9) in every possible rotational position.

Claims4

Dependent claims

A device for treating a surface with a dielectric barrier plasma, wherein the surface functions as counter electrode, comprising:

a housing, in which a high-voltage supply an electrode connected to the high-voltage supply, and a dielectric which screens the electrode with respect to the surface are located, wherein
the electrode has a shape of a sphere which is rotatably mounted at least to a limited extent in the housing and protrudes via a spherical portion from an end-face opening in the housing, and
the electrode is connected to the dielectric such that the spherical portion of said electrode protruding from the housing is covered by the dielectric in every possible rotational position of the electrode, and
wherein the housing is composed of a head part and a handle part,
and wherein the head part comprises a connecting pin connecting to the electrode,
wherein the connecting pin projects into a complementary guide channel in the handle part in an assembled state of the housing, and
wherein the connecting pin is connectable to a high-voltage supply when the housing is in the assembled state.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/026,359Filed 7 Nov 2014
Priority: DE 10 2013 019 05815 Nov 2013
Published: US 2016/0242269 A118 Aug 2016
Granted: 5 Sep 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H05H 1/2406
Generating plasma: using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes
A61L 2/14
Using physical processes: plasma, i.e. ionised gases
H05H 2245/36
Medical applications: sterilisation of objects, liquids, volumes or surfaces
H05H 2277/10
Applications of particle accelerators: medical devices