Patent ID: 6413316
Filing Date: 2002-07-02
Classification: H01J

Abstract:
A device for use in lacquering the inner side of a display screen having a front area, which extends substantially transverse to a display screen axis, and a frame-shaped peripheral area, which is remote from the front area and extends substantially parallel to the display screen axis, said peripheral area being bounded by an outer peripheral boundary face, the device comprising a lacquering head which at least partially encloses an inner space and is closed at the top with a closing means having a passage which is bounded by a passage boundary face and can be covered by the display screen while leaving free a spacing between the passage boundary face of the passage in the closing means and the peripheral area of the display screen covering the passage in the closing means, and through which passage the inner side of the display screen can be lacquered, said lacquering head being provided with supporting means, with which the display screen covering the passage in the closing means can be axially supported, and in whose inner space lacquer-supply means for supplying lacquer can be inserted, said lacquering head being provided with sealing means for sealing said spacing,wherein the sealing means has a frame bounded by an inner frame boundary face provided to surround the outer peripheral boundary face of the peripheral area of the display screen covering the passage in the closing means, and in that the inner frame boundary face of the frame is adapted to form an air gap between itself and the outer peripheral boundary face of the peripheral area of the display screen covering the passage in the closing means, said air gap constituting a flow resistance as a result of its dimensions and counteracting the escape of a gaseous medium from the inner space of the lacquering head and through the spacing between the passage boundary face of the passage in the closing means and the peripheral area of the display screen covering the passage in the closing means.