Patent ID: 6495196
Filing Date: 2002-12-17
Classification: B05C

Abstract:
A process of coating a strip article with a film of coating material by passing the strip article through a coating apparatus having at least one floating coating head provided with a coating face, extending from one lateral end of the coating head to an opposite lateral end, facing and extending transversely across a surface of the strip article to be coated, said coating face including an elongated slot and an extended surface forming a land positioned downstream of the slot and arranged at an effective land angle with respect to the surface to be coated causing said land to slope inwardly towards said surface in a direction of movement of said strip article through said apparatus, and extruding a liquid coating material from the slot onto a surface of the strip article to be coated to be engaged by the land to meter said coating material to a desired coating thickness and to create a force on said at least one coating head that balances a pressing force urging the coating head towards the surface to be coated, wherein said coating face of said at least one coating head has a preferred coating profile between said one lateral end and said opposite lateral end of the coating head, and wherein said coating head has a plurality regions between said one lateral end and said opposite lateral end, and heat flux to or from said regions is modified differently among said regions to substantially prevent or correct distortions of said preferred coating profile during coating of said strip article.