B - Operations – Transporting – 05 – C
Patent
B - Operations, Transporting
05
C
32/74
B05C 3/18 (2006.01) B05C 11/02 (2006.01) B05C 11/04 (2006.01) B05C 11/10 (2006.01) D21H 23/36 (2006.01)
Patent
CA 2019703
ABSTRACT On a coating device, at the mouth originating from the chamber for the coating substance, there is provided, between said mouth and the backing roll or web, a cover body which on its surface near the mouth forms an outlet channel that extends away from the space through which at the doctor blade flows the coating substance. This outlet channel has a throttle effect. Additionally, the cover body forms relative to the doctor blade a second throttle channel which is located relatively close to the smoothing edge of the doctor blade. At the outlet of the second throttle channel, the cover body preferably extends into a point which is arranged relatively close to the backing roll or web. The outlet channel can suitably be formed between a base body and the cover body, with the base body ending at a distance from the doctor blade that is maximally 10 mm greater than the clearance of the second throttle channel.
J. M. Voith G.m.b.h.
Mccarthy Tetrault Llp
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