Process for coating glass

Details Process for coating glass Process for coating glass

1981-01-26

1982-09-14

Hoffman, James R.

Glass manufacturing

Processes

With coating

65 605, 65 6051, 65 6052, 427110, 427160, 427168, C03C 1700, C03C 1710, C03C 1725

Patent

active

043493700

ABSTRACT:
In the formation of a metal or metal compound coating on a face of a heated glass substrate during its forward displacement along a tunnel by contacting the substrate at a coating station in the tunnel with at least one stream of droplets comprising one or more substances from which said coating is formed, and simultaneously exerting suction forces in exhaust ducting to draw environmental gases away from that station, the coating may sometimes be spoiled by side reactions or by the spurious deposition of substances from the atmosphere within the tunnel. To help reduce this spoiling, the exhaust ducting comprises at least one exhaust duct (12) whose entrance is located in said tunnel (1) forwardly or rearwardly of the coating station and which forms or is associated with a barrier wall (16) located so as to prevent gases from passing over said duct, towards and into contact with the droplet stream(s) (9, 10).

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