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AssigneeSchott AG
InventorsMichael Beck, Frank Druschke, Klaus-Dieter Duch, Ludwig Duersch, Johannews Roettgers, Anton Winkelmann
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Suction feeders of this type are used in the processing of glass and have a heatable feed line (1) consisting of noble metal. Said feed line is embedded in a heat-insulated manner in a housing (4a) with a refractory material (3a). Said housing has a connecting flange (5) for connection to a molten glass supply device and an exit flange (6) for operational engagement with a suction ball (7) which removes the gob from the feed line (1). According to the invention, the material (3a, 4a) surrounding the feed line (1) is configured in such a way in terms of the construction and/or substance that a negative pressure can be produced on the outer periphery of the feed line (1), so that the mechanical compression of the feed line (1) is minimised and air bubbles are not drawn up.
A suction feeder for glass processing, with a feed line (1, 10) of noble metal or a noble metal alloy which is heatable in operation and is embedded, in thermally insulated fashion, in a housing (4a) that has a connection element (5) for connection with a delivery device (8, 9) for molten glass and an outlet element (6) for operative engagement by a suction element, in particular a suction ball (7), that takes a gob of glass from the feed line (1, 10), characterized in that the material (3a, 4a) surrounding the feed line (1, 10) is embodied structurally and/or in terms of material such that in operation a negative pressure can be developed at the outer circumference of the feed line (1, 10).
Dependencies are inferred from the claim text.