Coating apparatus – With means to apply electrical and/or radiant energy to work... – Electrostatic and/or electromagnetic attraction or...
Patent
1978-04-21
1980-12-16
McIntosh, John P.
Coating apparatus
With means to apply electrical and/or radiant energy to work...
Electrostatic and/or electromagnetic attraction or...
118634, 118631, 118503, B05B 502, B05C 1302
Patent
active
042390168
ABSTRACT:
This invention relates to apparatus for handling a flexible sheet of interlayer material while forming a colored shade band on an elongated area thereof comprising applying a dye composition by electrostatic spraying against an elongated area of a surface of a flexible sheet of non-conductive interlayer material such as polyurethane or plasticized polyvinyl butyral. A flexible sheet to be coated is mounted on a support carriage at a loading and unloading chamber in a horizontal support plane. The carriage is transferred a finite distance to a coating chamber into alignment with carriage tilting means, which engages the carriage, preferably at its geometric center, to tilt the latter into an oblique plane at said coating chamber aligned with an obliquely disposed platen mask. Electrostatic spray means disposed to one side of said platen mask supplies an electrostatic spray of a dye composition through said platen mask to the elongated area of said flexible sheet. The tilting means pivots the carriage back to a horizontal plane and the carriage is returned to the loading and unloading station, where the coated flexible sheet is removed and another sheet mounted for treatment. The flexible sheet so coated is useful as an interlayer in shaded, bent laminated safety glass windshields.
REFERENCES:
patent: 2117568 (1938-05-01), Myers
patent: 3399885 (1968-09-01), Agett et al.
patent: 3411639 (1968-11-01), Dryon
patent: 3679073 (1972-07-01), Malburet
patent: 3682329 (1972-08-01), Dean
patent: 3765550 (1973-10-01), Tausheck
patent: 3790003 (1974-02-01), Tausheck
patent: 3966048 (1976-06-01), Nunes
patent: 3986518 (1976-10-01), Sato
Cathers William P.
Dorn, Jr. Charles W.
Mates Edward I.
McIntosh John P.
PPG Industries Inc.
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