Device for coating continuous webs

Coating apparatus – Solid member or material acting on coating after application – Running length work

Patent

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Details

118261, B05C 1104

Patent

active

046516727

ABSTRACT:
A device for coating continuous webs with regulable coating strength by means of a doctor rod that rests against the coated side of the web, that is mounted in a doctor bed, and that can be elastically forced with regulable pressure against the web being coated. The doctor rod is a doctor batten that moves with little friction along at least one overflow-side slide face of a rigid doctor bed. The face of the doctor batten toward the web that is being coated is rectangular and demarcates in conjunction with the web a narrowing coating-material application gap with a geometry that depends on the degree of contact pressure. The upper edge of the face constitutes a straight and sharp stripping edge. The face and stripping edge of the doctor batten are flexible. Its face is highly resistant to wear. The contact pressure is exerted by an inflatable means of exerting pressure positioned between the batten and the bed.

REFERENCES:
patent: 343345 (1986-06-01), Sparks
patent: 1312034 (1919-08-01), Jones
patent: 3029779 (1962-04-01), Hornbostel
patent: 3450098 (1969-06-01), Williams, Jr.
patent: 3882817 (1975-05-01), Zink
patent: 4259379 (1981-03-01), Britton
patent: 4458376 (1984-07-01), Sitko

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