Patent ID: 6427490
Filing Date: 2002-08-06
Classification: C03B,H01J

Abstract:
A method for producing funnels of picture tubes with pads molded on by the pressing technique, having the following steps:delivering a molten gob of glass to a mold corresponding to the outer contour of a funnel, pressing the gob of glass, by means of a die that determines the inner contour of the funnel and by means of a ring resiliently secured to the die and resting on the mold, to form the funnel with a flat encompassing upper edge and molded-on pads, characterized in that at least in the step of pressing movable flat molded parts are recessed in the mold in the region of the pads, flush with the upper edge of the mold, such that the molded parts protrude into the mold cavity and determine a recessed upper edge of the pads upon pressing and are moved out of the funnel after the funnel has been pressed.