C - Chemistry – Metallurgy – 03 – C
Patent
C - Chemistry, Metallurgy
03
C
49/3
C03C 17/10 (2006.01) B05B 7/00 (2006.01) B05B 15/04 (2006.01) C03C 17/00 (2006.01) C03C 17/25 (2006.01)
Patent
CA 1209805
ABSTRACT A metal or metal compound coating is formed on a face of a hot ribbon of freshly formed glass as it travels forwardly through a coating station where coat- ing precursor material is sprayed onto the surface of the glass. The coating precursor material is sprayed in one or more streams of droplets which is or are directed downwardly and forwardly towards the ribbon and is repeatedly displaced to and fro across the ribbon path so that the ribbon is scanned by the droplet stream(s). Especially in order to form a thick coating of tin oxide on a rapidly moving ribbon, the velocities of the droplets in the stream(s) are such that sub- stantial splashing occurs at the ribbon face. Gas is continuously discharged along axes behind the droplet stream so as to maintain a forwardly directed flow of gas which envelops the rear half of the or each stream at least at the bottom portion of the stream trajectory and sweeps past the sides of such stream with sufficient velocity to entrain substantially all the splashes away from the stream. The entrained material is then removed from the environment of the ribbon through exhaust ducting.
456767
Laethem Robert Van
Terneu Robert
Van Cauter Albert
Glaverbel
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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