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US 4,706,603 AGranted
Coating apparatus with edge protection for paper webs
AssigneeJagenberg Aktiengesellschaft
InventorGerhard Wohlfeil
Life of this patent
Estimating the term…
Abstract
A coating apparatus for fabric webs carried along a counter roll includes an applicator which accomodates a chamber containing coating color to be applied onto the fabric web. The chamber is defined by spaced doctor blade and overflow plate and dam elements laterally sealing the chamber. For preventing a coating of the web along its edges, separate doctor assemblies are provided which are controlled independently of the dam plates.
Claims12
An apparatus for coating a web carried along a roll, comprising:
- a doctor blade cooperating with said roll;
- an overflow plate spaced from said blade so as to define a chamber therebetween for accomodating a coating material;
- dam elements closing said chamber at its sides flanking said roll and tightly arranged against axially opposite ends of said overflow plate and said roll;
- and
- adjustable edge blade means for preventing a coating of the web along its edges, said edge blade means being positioned along said edges adjacent said dam elements.
2 more elements
An apparatus for coating a web carried along a roll, comprising:
- a doctor blade cooperating with said roll;
- an overflow plate spaced from said blade so as to define a chamber therebetween for accomodating a coating material;
- dam elements closing said chamber at its sides flanking said roll and tightly arranged against axially opposite ends of said overflow plate and said roll;
- adjustable edge blade means for preventing a coating of the web along its edges, said edge blade means being positioned along said edges adjacent of said dam elements;
- and
- said overflow plate being provided with aligned through-holes communicating with said chamber.
3 more elements
Dependencies are inferred from the claim text.