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US 9,728,940 B2Granted
Method for surface treating a substrate and device for carrying out the method
AssigneeKalwar Civ Innoserv GmbH & Co. KG
InventorKlaus Kalwar
Life of this patent
Estimating the term…
Abstract
The invention relates to a method for surface treating a substrate (28) by means of an electrical corona discharge, wherein aerosols (5) are sprayed into discharge area defined by an active gap formed between a corona electrode and the substrate (28) during the discharging, designed such that the aerosols (5) are sprayed substantially opposite the direction of gravity.
Claims7
A device for surface treatment of a substrate with an electric corona discharge, said device comprising:
- at least two corona electrodes, one of the corona electrodes being connected to a voltage and the other one of the corona electrodes being connected to ground, with one of the corona electrodes forming a support electrode having a downwardly oriented surface to form a support surface for a substrate, and with the other one of the corona electrodes forming a counter electrode;
- and
- an atomizer configured to spray aerosols only upwards in a direction opposite to direction of gravity toward the downwardly oriented surface into a discharge region of the corona electrodes, wherein the atomizer and the downwardly oriented surface are positioned juxtaposed with respect to each other.
Dependencies are inferred from the claim text.