Glass manufacturing – Means providing special atmosphere
Patent
1995-02-27
1997-07-01
Czaja, Donald E.
Glass manufacturing
Means providing special atmosphere
651821, 65 992, 65 605, C03B 1802, C03C 1700
Patent
active
056433492
ABSTRACT:
The present invention provides a method for making a stain-resistant float glass and an apparatus for carrying out such a method. In keeping with this method, SO.sub.3 is applied to the upper surface of float glass in an amount efficacious to materially reduce staining of the upper surface of the glass. Optimally, SO.sub.3 gas can be applied directly onto the upper surface of the glass. An apparatus of the invention generally includes a downwardly open hood positioned above the upper surface of the glass and having walls defining an enclosure. SO.sub.3 gas (either as such or as a reactive mixture of SO.sub.2 gas and an oxygen-containing gas) is delivered through a delivery tube to the enclosure.
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Granley Chris
O'Shaughnessy Roger
Piper Mark
Slavich Al
Cardinal IG Company
Czaja Donald E.
Griffin Steven P.
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