Cardinal Ig Company

Cardinal Fg Company

Mark Piper

Roger D O'Shaughnessy

Chris Granley

Al Slavich

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 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 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 gas (either as such or as a reactive mixture of S0 gas and an oxygen-containing gas) is delivered through a delivery tube to the enclosure.

Stain-resistant glass making method

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.

Growing community of inventors

Boyceville, WI, United States of America

Mark Piper