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US 4,920,913 AGranted
Device for coating a web of material
AssigneeJagenberg Aktiengesellschaft
InventorsReinhard Knop, Herbert Sommer, Georg Muller
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AssigneeJagenberg Aktiengesellschaft
InventorsReinhard Knop, Herbert Sommer, Georg Muller
Estimating the term…
In a device for coating a web of material that travels around a backing roller, the device having a coating chamber that opens toward the backing roller, that extends over the operating width, that has a slot demarcated at the web-intake end by an overflow plate for supplying liquid coating, and having a flow-control system at the downstream end, the improvement which comprises structures defining a coating-guide channel that extends over the operating width at the outlet end of the coating chamber and terminates just upstream of the flow-control system, that is demarcated at one end by the backing roller and at the other by a baffle that essentially parallels the surface of the backing roller, that extends along the direction of travel at least 50% of the length of the overflow plate plus the flow-control system, that is open along its width perpendicular to the axis of the backing roller from 1.5 to 15% and preferably from 2.5 to 5% of its length, and that terminates just upstream of the flow-control system.
In a device for coating a web of material that travels around a backing roller having an operating width and an axis of rotation, including a coating chamber that opens toward the backing roller, that extends over the operating width, and that has a slot, demarcated at the web-intake end by an overflow plate, for supplying liquid coating, and a flow-control system at the downstream end of the device, the improvement comprising means defining a coating-guide channel:
Dependencies are inferred from the claim text.