Patent AT-E399971-T1: [Translated] DEVICE FOR REPLACING AIR OXYGEN WITH AN INERT GAS FROM A LAMINAR AIR BOUNDARY LAYER AND USE THEREOF

The air hydrogen replacement device replaces the hydrogen with nitrogen from the air boundary layer (3) of the substrates (1) of material webs moving in the transporting direction (2). It has two corona electrodes (5, 6) and a counter-electrode (7). The device (15) supplying the inert gas to the region of the second corona electrode (6) comes out in the negative pressure zone (12).