Coating apparatus – With means to apply electrical and/or radiant energy to work... – Electrostatic and/or electromagnetic attraction or...
Patent
1990-06-05
1992-08-11
Jones, W. Gary
Coating apparatus
With means to apply electrical and/or radiant energy to work...
Electrostatic and/or electromagnetic attraction or...
118634, 118632, B05B 5025
Patent
active
051369737
ABSTRACT:
A device for applying a double-sided coating to a substrate comprises three transport lines which are mutually connected by conveying stations in the form of belt-type conveyors. The substrate is placed onto a paper web, and the upper surface of the substrate is coated with the liquid to be applied in a spraying station in an electrostatic field; subsequently dried; turned through 180.degree. in the horizontal direction by a first belt-type conveyor; and passed onto a punched conveyor belt which is endlessly guided about a suction roller. The substrate is turned upside down by the suction roller, through a jet of compresed air. The substrate is transported onto a second belt-type conveyor where it is horizontally turned through 180.degree. and conveyed onto the third transport line, in which it is again passed through a cleaning station and a spraying station where the other surface of the substrate is coated with a liquid resist. The substrate is then conveyed on to an air cushion produced by a dynamic air pressure box and is moved through the air pressure box by pushers rotating on an endless magnetic belt where it is cooled on the air cushions and then deposited in a tray.
REFERENCES:
patent: 3052340 (1962-09-01), Lyons
patent: 3594149 (1971-07-01), Pickavance et al.
patent: 3795301 (1974-03-01), Sugitani
patent: 3865227 (1975-02-01), Kaak
patent: 3874740 (1975-04-01), Hurd
patent: 3902587 (1975-09-01), Checcucci
patent: 3983989 (1976-10-01), Wahren
Becker Reinhold
Hultzsch Guenter
Idstein Hermann
Nies Reinhard
Hoechst Aktiengesellschaft
Jones W. Gary
Lamb Brenda
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