Device for applying a film of liquid film to a web of goods
AssigneeVepa AG
InventorGerold Fleissner
Life of this patent
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Abstract
A device for applying a laminar flowing liquid film of considerable width, the film being uniformly thin over the working width, to a continuously advanced web of goods includes a liquid distribution device supplied with liquid fed by a pump and provided with a plurality of liquid distribution chambers and an associated guide surface from which the liquid film flows onto the web of goods. The liquid distribution chamber is connected by a supply line with the pump and the guide surface extend over a working width greater than the cross section the of supply line. Each liquid distribution chamber extend only over an exactly defined working width which is narrow by comparison with the width of the wider web of goods, and each chamber is connected with only one liquid supply line.
Claims12
A device for applying a laminar flowing liquid film of considerable width to a continuously advanced web of goods, said film being uniformly thin over a working width of the device, which comprises a liquid distribution device supplied with liquid from a supply line and provided with at least one liquid distribution chamber;
- an overflow weir;
- and a guide surface associated with said overflow weir, the liquid film flowing from a lower edge of the guide surface onto the web of goods;
- said liquid distribution device further comprising a liquid supply opening for connecting the liquid distribution chamber to the supply line and the guide surface extending over a working width greater than a cross section of the liquid supply opening;
- said liquid distribution chamber being formed by a plurality of panels arranged parallel and close to one another, each of said panels having at least one liquid outflow opening, the openings in the panels being arranged with respect to one another and adapted in cross section to a flow-through volume of liquid therein so that a uniform branching arrangement of liquid distribution is provided within said liquid distribution chamber;
- the outflow openings of the panels terminating in a connecting slot of said liquid distribution device, said connecting slot extending over the working width of the device and being adjoined by a liquid outflow slot likewise extending over the working width of the device, said liquid outflow slot extending upwardly to the overflow weir.
Dependencies are inferred from the claim text.