Patent ID: 7556693

Claim:
A curtain applicator on which a two-layer curtain is formed, said curtain applicator comprising: a medium feeder configured for forming the two-layer curtain by dispensing two types of a coating medium, said medium feeder extending across a width of a web moving in a given direction and positioned above said moving web in order to apply two layers of said coating medium onto a web surface of said moving web, said medium feeder including a middle lip having a first side and a second side, and two side lips, one side lip arranged upstream from the first side of the middle lip with a first channel for applying a first layer of the curtain arranged therebetween and the other side lip arranged downstream from the second side of the middle lip with a second channel for applying a second layer of the curtain arranged therebetween, and said two side lips each including a pointed part, an end of said middle lip including a pointed part projecting further toward the web surface than said pointed parts of said two side lips; and a convex shaped medium separation device which is in contact with said pointed part of said middle lip and is configured for contacting a portion of a surplus of said coating medium which is dispensed from said medium feeder and for maintaining separate the two types of coating medium in said portion of surplus coating medium dispensed from said medium feeder.