Patents by Inventor Ahdi El Kahlout
Ahdi El Kahlout has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11613493Abstract: A method for making a heat-resistant roll includes pre-selecting a plurality of heat-resistant disks and pressing at least a selected portion of the pre-selected disks together such that a total axial thickness of the pressed disks relative to a total axial thickness of the selected disks prior to pressing is within a predetermined range.Type: GrantFiled: July 20, 2017Date of Patent: March 28, 2023Assignee: Corning IncorporatedInventors: Ahdi El-Kahlout, Tuan Quoc Nguyen
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Patent number: 11512015Abstract: A method and apparatus for manufacturing a glass article includes flowing a glass ribbon through a housing having first and second side walls. The first and second side walls extend between the glass ribbon and a cooling mechanism and at least one of the side walls has at least one closeable opening, such that a greater amount of heat is transferred from the glass ribbon when the closeable opening is open than when the closeable opening is closed.Type: GrantFiled: November 21, 2017Date of Patent: November 29, 2022Assignee: Corning IncorporatedInventors: Robert Delia, Ahdi El-Kahlout, Soongyup Lee
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Publication number: 20200411450Abstract: Disclosed herein are methods for making a thin film device and/or for reducing warp in a thin film device, the methods comprising applying at least one metal film to a convex surface of a glass substrate, wherein the glass substrate is substantially dome-shaped. Other methods disclosed include methods of determining the concavity of a glass sheet. The method includes determining the orientation of the concavity and measuring a magnitude of the edge lift of the sheet when the sheet is supported by a flat surface and acted upon by gravity. Thin film devices made according to these methods and display devices comprising such thin film devices are also disclosed herein.Type: ApplicationFiled: May 8, 2020Publication date: December 31, 2020Inventors: John Steele Abbott, III, Takashi Atsumi, Ahdi El-Kahlout, Yoshiki Goto, Steven Francis Hoysan, Chien Yu Hsu, Shinichi Ii, Kiat Chyai Kang, Yoshiaki Kato, Shawn Rachelle Markham, Timothy John O'Driscoll, Christian Lucien Stauter
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Patent number: 10604436Abstract: Methods for producing a glass ribbon include drawing a quantity of molten material from a forming vessel into a glass ribbon with the forming vessel positioned within a first portion of a housing located within an upper chamber. The methods further include drawing the glass ribbon along a draw path passing through a second portion of the housing at least partially located within a lower chamber. The methods further include venting gas from an interior of housing through a wall of the second portion of the housing. In one example, the method further includes maintaining a pressure difference between the lower chamber and the upper chamber. In another example, the method includes maintaining a pressure difference between the interior of the housing and the upper chamber.Type: GrantFiled: April 4, 2017Date of Patent: March 31, 2020Assignee: Corning IncorporatedInventors: Ahdi El-Kahlout, Soongyup Lee, Yi-Ming Liu, Douglas John Tanaka
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Publication number: 20190375669Abstract: A method and apparatus for manufacturing a glass article includes flowing a glass ribbon through a housing having first and second side walls. The first and second side walls extend between the glass ribbon and a cooling mechanism and at least one of the side walls has at least one closeable opening, such that a greater amount of heat is transferred from the glass ribbon when the closeable opening is open than when the closeable opening is closed.Type: ApplicationFiled: November 21, 2017Publication date: December 12, 2019Inventors: Robert Delia, Ahdi El-Kahlout, Soongyup Lee
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Publication number: 20190263710Abstract: A method for making a heat-resistant roll includes pre-selecting a plurality of heat-resistant disks and pressing at least a selected portion of the pre-selected disks together such that a total axial thickness of the pressed disks relative to a total axial thickness of the selected disks prior to pressing is within a predetermined range.Type: ApplicationFiled: July 20, 2017Publication date: August 29, 2019Applicant: Corning IncorporatedInventors: Ahdi EL-KAHLOUT, Tuan Quoc NGUYEN
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Publication number: 20190135674Abstract: Methods for producing a glass ribbon include drawing a quantity of molten material from a forming vessel into a glass ribbon with the forming vessel positioned within a first portion of a housing located within an upper chamber. The methods further include drawing the glass ribbon along a draw path passing through a second portion of the housing at least partially located within a lower chamber. The methods further include venting gas from an interior of housing through a wall of the second portion of the housing. In one example, the method further includes maintaining a pressure difference between the lower chamber and the upper chamber. In another example, the method includes maintaining a pressure difference between the interior of the housing and the upper chamber.Type: ApplicationFiled: April 4, 2017Publication date: May 9, 2019Inventors: Ahdi El-Kahlout, Soongyup Lee, Yi-Ming Liu, Douglas John Tanaka
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Patent number: 10029936Abstract: 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° to about 60°. 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.Type: GrantFiled: June 20, 2014Date of Patent: July 24, 2018Assignee: Corning IncorporatedInventors: Paul Richard Grzesik, Ahdi El Kahlout, Nicolas LeBlond, Gaozhu Peng, Kim E Womer
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Publication number: 20180005960Abstract: Disclosed herein are methods for making a thin film device and/or for reducing warp in a thin film device, the methods comprising applying at least one metal film to a convex surface of a glass substrate, wherein the glass substrate is substantially dome-shaped. Other methods disclosed include methods of determining the concavity of a glass sheet. The method includes determining the orientation of the concavity and measuring a magnitude of the edge lift of the sheet when the sheet is supported by a flat surface and acted upon by gravity. Thin film devices made according to these methods and display devices comprising such thin film devices are also disclosed herein.Type: ApplicationFiled: January 14, 2016Publication date: January 4, 2018Inventors: John Steele Abbott, III, Takashi Atsumi, Ahdi El-Kahlout, Yoshiki Goto, Steven Francis Hoysan, Chien Yu Hsu, Shinichi Li, Kiat Chyai Kang, Yoskiaki Kato, Shawn Rachelle Markham, Timothy John O'Driscoll, Christian Lucien Stauter
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Publication number: 20170369353Abstract: Apparatus for producing glass ribbon comprises a plurality of cooling coils positioned along a cooling axis of the apparatus extending transverse to a draw direction. The cooling coils are configured to control a transverse temperature profile of the glass ribbon along a cooling axis. Each cooling coil can be fabricated from at least one tube and configured to circulate fluid to remove heat from the cooling coil. In further examples, methods of producing a glass ribbon include the step of controlling a transverse temperature profile of the glass ribbon along a width of the glass ribbon. The step of controlling the temperature profile includes selectively removing heat from at least one of a plurality of cooling coils positioned along the cooling axis.Type: ApplicationFiled: September 8, 2017Publication date: December 28, 2017Inventors: Robert Delia, Ahdi El-Kahlout
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Patent number: 9758418Abstract: Methods for producing a glass ribbon include drawing a quantity of molten material from a forming vessel into a glass ribbon with the forming vessel positioned within a first portion of a housing located within an upper chamber. The methods further include drawing the glass ribbon along a draw path passing through a second portion of the housing at least partially located within a lower chamber. The methods further include venting gas from an interior of housing through a wall of the second portion of the housing. In one example, the method further includes maintaining a pressure difference between the lower chamber and the upper chamber. In another example, the method includes maintaining a pressure difference between the interior of the housing and the upper chamber.Type: GrantFiled: April 6, 2016Date of Patent: September 12, 2017Assignee: Corning IncorporatedInventors: Ahdi El-Kahlout, Soongyup Lee, Yi-Ming Liu, Douglas John Tanaka
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Patent number: 9643874Abstract: An apparatus and methods for making a glass ribbon 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 replaceable heating cartridge configured to direct heat to the edge director and thermally shield the edge director from heat loss. A replaceable heating cartridge is also provided for directing heat to the edge director and thermally shielding the edge director from heat loss.Type: GrantFiled: July 6, 2016Date of Patent: May 9, 2017Assignee: Corning IncorporatedInventors: Ren Hua Chung, Ahdi El-Kahlout, David Scott Franzen, Brendan William Glover, Paul Richard Grzesik, Bulent Kocatulum, Gaozhu Peng, Michael John Stephenson
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Patent number: 9512025Abstract: An apparatus and methods for making a glass ribbon 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 replaceable heating cartridge configured to direct heat to the edge director and thermally shield the edge director from heat loss. A replaceable heating cartridge is also provided for directing heat to the edge director and thermally shielding the edge director from heat loss.Type: GrantFiled: May 15, 2014Date of Patent: December 6, 2016Assignee: CORNING INCORPORATEDInventors: Ren Hua Chung, Ahdi El-Kahlout, David Scott Franzen, Brendan William Glover, Paul Richard Grzesik, Bulent Kocatulum, Gaozhu Peng, Michael John Stephenson
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Publication number: 20160311716Abstract: An apparatus and methods for making a glass ribbon 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 replaceable heating cartridge configured to direct heat to the edge director and thermally shield the edge director from heat loss. A replaceable heating cartridge is also provided for directing heat to the edge director and thermally shielding the edge director from heat loss.Type: ApplicationFiled: July 6, 2016Publication date: October 27, 2016Inventors: Ren Hua Chung, Ahdi El-Kahlout, David Scott Franzen, Brendan William Glover, Paul Richard Grzesik, Bulent Kocatulum, Gaozhu Peng, Michael John Stephenson
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Patent number: 9296635Abstract: 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.Type: GrantFiled: March 11, 2014Date of Patent: March 29, 2016Assignee: Corning IncorporatedInventors: Paul Gregory Chalk, Ahdi El Kahlout, Shawn Rachelle Markham
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Patent number: 9073774Abstract: 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.Type: GrantFiled: July 12, 2013Date of Patent: July 7, 2015Assignee: Corning IncorporatedInventors: Robert Delia, Ahdi El Kahlout
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Publication number: 20140298861Abstract: 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° to about 60°. 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.Type: ApplicationFiled: June 20, 2014Publication date: October 9, 2014Inventors: Paul Richard Grzesik, Ahdi El Kahlout, Nicolas LeBlond, Gaozhu Peng, Kim E. Womer
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Patent number: 8794034Abstract: 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° to about 60°. 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.Type: GrantFiled: May 29, 2012Date of Patent: August 5, 2014Assignee: Corning IncorporatedInventors: Paul Richard Grzesik, Ahdi El Kahlout, Nicolas LeBlond, Gaozhu Peng, Kim E Womer
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Publication number: 20140190213Abstract: Managing pressure within a thickness-control-zone (muffle door) housing (20) relative to pressures in a glass-making machine enclosure (60) and an upper chamber (40)—that is disposed outside the enclosure—so as to minimize or control undesired airflows that would adversely affect thickness (9) of glass ribbon (8). According to one pressure-management technique, the pressure at a location (25) in the housing (20) is managed so as to be less than the pressure at a location (65) that is within the enclosure (60) 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 (25) is managed so as to be greater than the pressure in the upper chamber.Type: ApplicationFiled: March 11, 2014Publication date: July 10, 2014Applicant: Corning IncorporatedInventors: Paul Gregory Chalk, Ahdi El Kahlout, Shawn Rachelle Markham
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Patent number: 8707737Abstract: Managing pressure within a thickness-control-zone (muffle door) housing (20) relative to pressures in a glass-making machine enclosure (60) and an upper chamber (40)—that is disposed outside the enclosure—so as to minimize or control undesired airflows that would adversely affect thickness (9) of glass ribbon (8). According to one pressure-management technique, the pressure at a location (25) in the housing (20) is managed so as to be less than the pressure at a location (65) that is within the enclosure (60) 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 (25) is managed so as to be greater than the pressure in the upper chamber.Type: GrantFiled: November 30, 2009Date of Patent: April 29, 2014Assignee: Corning IncorporatedInventors: Paul Gregory Chalk, Ahdi El Kahlout, Shawn Rachelle Markham