Coating apparatus – With cleaning or reconditioning work support or conveyer
Patent
1990-06-08
1992-01-21
Woo, Jay H.
Coating apparatus
With cleaning or reconditioning work support or conveyer
118104, 118106, 118126, 118257, B05C 1102
Patent
active
050819500
ABSTRACT:
A coating device for a material web, such as a paper or cardboard web, is provided. A doctor band, serving as a doctor element, is run over reversing rolls in the form of a loop and along a backing roll that supports the material web. A doctor band drive is provided by take-up drums that can be driven by a motor. The feed of the doctor band is very low, for instance, 2 to 10 cm/min. This provides sufficient time for performing a thorough cleaning of the doctor band. The band may be cleaned by nozzles, scrapers and the like.
REFERENCES:
patent: 3781107 (1973-12-01), Ruhland
patent: 3958531 (1976-05-01), Warne
patent: 4651672 (1987-03-01), Sommer
patent: 4665859 (1987-05-01), Dunlap et al.
patent: 4938131 (1990-07-01), Maggi
Martin Eckhard
Wiesse Joachim
J. M. Voith GmbH
Nguyen Khanh P.
Woo Jay H.
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