Method for continuous atmospheric pressure plasma treatment...

Coating processes – Direct application of electrical – magnetic – wave – or... – Plasma

Reexamination Certificate

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C118S7230AN, C216S067000, C216S068000, C216S069000, C216S070000, C216S071000

Reexamination Certificate

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07989034

ABSTRACT:
A method for continuous atmospheric plasma treatment of an electrically insulating workpiece. The workpiece is arranged at a distance beneath at least one high-voltage electrode which extends across a direction of movement. The electrode and the workpiece are set in motion relative to one another. The high voltage being applied to the high-voltage electrode, preferably is in the form of an AC voltage. A first space situated between the high-voltage electrode and the workpiece is filled with a first atmosphere and a second space on the side of the workpiece facing away from the high-voltage electrode is filled with a second atmosphere that is different from the first atmosphere. The second space is adjacent to a back side of the workpiece. The choice of high voltage and of the first and second atmospheres is made in such a way that a plasma discharge is ignited in the second atmosphere.

REFERENCES:
patent: 4863756 (1989-09-01), Hartig et al.
patent: 5597456 (1997-01-01), Maruyama et al.
patent: 6150430 (2000-11-01), Walters et al.
patent: 6489585 (2002-12-01), Nakamura et al.
patent: 2003/0116281 (2003-06-01), Herbert et al.
patent: 10300439 (2004-07-01), None
Wikipedia reference based on IEC definition of high voltage.

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