Corning Incorporated

Daniel Arthur Nolet

Robert Richard Thomas

Guido Peters

Mark Alan Cook

Zagorka Dacic Gaeta

Shawn Rachelle Markham

Douglas Gregg Neilson

Martin Herbert Goller

James Patrick Murphy

John Jerry Kersting

Gautam Meda

William Weston Johnson

Hojong Kim

Gilbert Deangelis

Pascal Verdurme

Sung Hwan Lee

Sung-Hwan Lee

Robert A Novak

An electrically boosted refractory melting vessel including a back wall, a first side wall, a second side wall, a front wall and a bottom wall, the melting vessel comprising a longitudinal center line extending from the back wall to the front wall and an overall width orthogonal to the longitudinal center line extending between an inside surface of the first side wall and an inside surface of the second side wall. The melting vessel also includes a length L between the back wall and the front wall, and a width W between the first side wall and the second side wall orthogonal to the center line. A plurality of electrodes extend into an interior of the melting vessel through a bottom wall of the melting vessel, and L/W is in a range from about 2.0 to about 2.4.

Apparatus and method for forming a glass article

A melting apparatus is disclosed, the melting apparatus including a melting vessel with a back wall, a front wall, a first side wall, a second side wall and a longitudinal centerline extending therebetween and a width between the first and second side walls orthogonal to the centerline. The melting vessel further includes a first feed screw including a first axis of rotation and a second feed screw including a second axis of rotation, the first axis of rotation positioned between the longitudinal centerline and the first side wall and the second axis of rotation positioned between the longitudinal centerline and the second side wall. The positions of either one or both the first and second axes of rotation are located from a respective side wall a distance that is equal to or less than about 15% of the width of the melting vessel.

The present invention is directed toward a method of reducing contamination of a glass melt in a stirring apparatus by an oxide material. The oxide material, such as platinum oxide, may be volatilized by the high temperature of the glass melt, and then condense on the inside surfaces of a stirring vessel, particularly the stirrer shaft and surrounding surfaces of the stirring vessel cover. A build-up of condensed oxide material may then be dislodged and fall back into the glass melt. Accordingly, an apparatus and method is provided that includes a heating element disposed adjacent an annular gap between the stirring vessel cover and the stirrer shaft. The heating element heats a surface of the stirring vessel cover bounding the annular gap and prevents condensation of volatile oxides that may flow through the annular gap.

Apparatus for homogenizing a glass melt

Methods of fabricating glass sheets () are provided in which the sheets are cut from a glass ribbon () composed of a glass having a setting zone temperature range (SZTR). As the glass is drawn, it passes through the SZTR () and an across-the-ribbon temperature distribution is produced at least one longitudinal position along the ribbon to compensate for in-plane stress induced in the sheets () when flattened. Through such thermal compensation, glass sheets () are produced which exhibit controlled levels of distortion when cut into sub-pieces and thus are suitable for use as substrates in the manufacture of, for example, flat panel displays, e.g., LCD displays.

Temperature compensation for shape-induced in-plane stresses in glass substrates

A method of forming a glass melt including heating a glass feed material in a first melting furnace to form a glass melt, flowing the glass melt into a second melting furnace through a refractory metal connecting tube, and further heating the glass melt in the second melting furnace. The refractory metal connecting tube is heated to prevent the molten glass from excessive cooling, and to ensure that the glass melt entering the second melting furnace is equal to or greater than the temperature of the glass melt in the second melting furnace. An apparatus for performing the method is also disclosed.

Method of forming a glass melt

The level of precious-metal inclusions in glass products, e.g., glass substrates for liquid crystal displays, is reduced by stirring molten glass in a stir chamber () under conditions such that the magnitude of the shear stress &#x3c4; on the chamber's wall () and on the surfaces of the stirrer () is reduced while at the same time, the Q&#x2022;E product for the system is kept high, where Q is the flow of glass through the stirring system and E is the system's stirring effectiveness.

Methods and apparatus for homogenizing molten glass

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Danville, KY, United States of America

Daniel Arthur Nolet