Corning Incorporated

Ahdi El Kahlout

Robert Delia

Gaozhu Peng

Shawn Rachelle Markham

Nicolas LeBlond

Kim E Womer

Paul Richard Grzesik

Paul Gregory Chalk

Anca D Fountain

Soongyup Lee

Shinya Sakamoto

John A Adamowicz

An apparatus for downwardly drawing glass ribbon comprises edge directors, wherein an outer portion defining a first pair of surfaces and a second pair of surfaces. In one example, the first and second pair of surfaces of each edge director includes a glass wettability with a static contact angle within a range of from about 30&#xb0; to about 60&#xb0;. In another example, the outer portion comprises a platinum alloy including from about 0.05 weight % tin to about 5 weight % tin. Methods for forming glass include the step of providing the edge director with a desired glass wettability and/or a desired platinum alloy.

Apparatus for forming glass with edge directors and methods

Managing pressure within a thickness-control-zone (muffle door) housing relative to pressures in a glass-making machine enclosure and an upper chamber that is disposed outside the enclosure so as to minimize or control undesired airflows that would adversely affect thickness of glass ribbon. According to one pressure management technique, the pressure at a location in the housing is managed so as to be less than the pressure at a location that is within the enclosure as well as both outside and adjacent to the housing. In the event of a leak, as by a crack or unintended opening in the housing, for example, this pressure difference reduces or prevents airflow toward the ribbon and, thereby, undesired thickness variation in the ribbon. According to a second pressure-management technique, the pressure at the location is managed so as to be greater than the pressure in the upper chamber.

Method and apparatus for pressure control of glass-making thickness-control zone

Glass manufacturing apparatuses with particulate removal devices and methods for using the same are disclosed. In one embodiment, a fusion draw machine for forming a glass web from molten glass includes an enclosure and a first pull roll and a second pull roll rotatably positioned in an interior of an enclosure. The first pull roll and the second pull roll cooperate to draw a glass web in a draw direction. A particulate removal device for removing particulate matter from the interior of the enclosure is fluidly coupled to the enclosure and includes a vacuum nozzle disposed in the interior of the enclosure and fluidly coupled to a vacuum source with a vacuum line. A particulate filter is fluidly coupled to the vacuum nozzle and the vacuum source and traps particulate matter exhausted from the interior of the enclosure through the vacuum nozzle.

Glass manufacturing apparatuses with particulate removal devices and methods of using the same

Managing pressure within a thickness-control-zone (muffle door) housing () relative to pressures in a glass-making machine enclosure () and an upper chamber ()&#x2014;that is disposed outside the enclosure&#x2014;so as to minimize or control undesired airflows that would adversely affect thickness () of glass ribbon (). According to one pressure-management technique, the pressure at a location () in the housing () is managed so as to be less than the pressure at a location () that is within the enclosure () as well as both outside and adjacent to the housing. In the event of a leak, as by a crack or unintended opening in the housing, for example, this pressure difference reduces or prevents airflow toward the ribbon and, thereby, undesired thickness variation in the ribbon. According to a second pressure-management technique, the pressure at location () is managed so as to be greater than the pressure in the upper chamber.

An apparatus and method for removing volatilized chemical compounds from within enclosed or partially enclosed spaces containing molten glass. One or more condensing devices are positioned within the enclosure to produce preferential condensation of the vapor on condensing elements of the condensing devices, thereby facilitating easy removal of the condensates from the enclosure. The condensing elements may have a variety of shapes and sizes depending on the design of the enclosure.

Method and apparatus for removing volatilized materials from an enclosed space in a glass making process

Apparatus for removing volatilized materials from an enclosed space in a glass making process

An apparatus for making a glass sheet includes a forming wedge with a pair of inclined forming surface portions converging along a downstream direction to form a root. The apparatus further includes an edge director intersecting with at least one of the pair of downwardly inclined forming surface portions, and a thermal shield configured to reduce heat loss from the edge director. Methods are also provided for reducing heat loss from the edge director with a thermal shield.

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Lexington, KY, United States of America

Ahdi El Kahlout