Device for impregnation of webs of porous materials

Details Device for impregnation of webs of porous materials Device for impregnation of webs of porous materials

B - Operations, Transporting

05

C

B05C 3/132 (2006.01) B05B 3/12 (2006.01) B29B 15/12 (2006.01)

Patent

CA 2168823

A device for impregnation of webs of porous materials with a liquid impregnating medium under increased pressure comprises a roller rotatable about a horizontal axis, a trough arranged so that the roller is partially inserted in the trough to form a chamber between an inner surface of the trough and an outer surface of the roller, a unit for supplying an impregnating medium into the chamber, and a unit forming an inlet slot for introducing a web to be impregnated into the chamber and an outlet slot for withdrawing the impregnated web from the chamber. The chamber over a path from the inlet slot to the outlet slot narrows and again increases many times.

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