Patent ID: 8038892
Filing Date: 2011-10-18
Classification: C03C

Abstract:
1. A method for treating glass surfaces in strips or areas, comprising the steps of providing a glass pane comprising two opposite broad side surfaces, the glass pane being at least partially coated with a coating; placing the glass pane in a working and displacement facility; arranging at least one pair of plasma nozzles so that the outlet openings for a plasma jet are directed toward one another and simultaneously toward one of the opposite broad side surfaces of the glass pane; moving the pair of plasma nozzles and the surface of the glass pane relative to one another; generating a plasma jet by at least one plasma nozzle of the pair of plasma nozzles directing the plasma jet toward the coated surface region of the glass plane, thereby at least partially removing the coating by means of the plasma jet and activating the glass surface; detecting, during the movement of the glass pane and of the nozzle pair relative to one another, variations of the position of the broad side surfaces of the glass pane in the region between the plasma nozzles, the pair of plasma nozzles each being displaced at approximately right angles to the glass pane in the direction of the position variation of the glass pane surfaces; wherein the two nozzles of the pair of plasma nozzles are controlled and operated jointly, so that the plasma jet is generated optionally from one of the two nozzles of the nozzle pair or from both nozzles simultaneously.