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公开(公告)号：US10899650B2
公开(公告)日：2021-01-26
申请号：US16098298
申请日：2017-05-03
Applicant: CORNING INCORPORATED
Inventor： Gilbert De Angelis , Olivier Fournel , Allan Mark Fredholm , Chunhong Chelsie He , Bruno Le Gallic , Yuehao Li , David Posada-Pineda , Xavier Tellier
Abstract: Disclosed is an apparatus and method of making molten glass. The apparatus includes a glass former having a slot orifice design to deliver a glass ribbon. The slot orifice design can include a transition section, a slot extension, and external structural reinforcements. In some embodiments, the orifice opening distance of the slot extension varies along the width of the orifice. In some embodiments, the orifice has an orifice opening distance that is smaller at the center of the slot extension than at the edges of the slot extension, which limits glass flow at the center of the slot extension. Also disclosed is a method of making glass using the disclosed apparatus.
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公开(公告)号：US10927029B2
公开(公告)日：2021-02-23
申请号：US16201472
申请日：2018-11-27
Applicant: CORNING INCORPORATED
Inventor： Dale Madard Fisher, Jr. , David Posada-Pineda
Abstract: An apparatus for producing composite glass tube with a plurality of glass layers includes a plurality of cylindrical containers of increasing inner dimensions concentrically arranged and stationary. Each cylindrical container includes a side wall, bottom wall, and a delivery ring. Adjacent cylindrical containers define an annular chamber, a flow control region, and an annular flow channel therebetween. The apparatus includes at least one flow control valve positioned in the flow control region and translatable relative to the adjacent cylindrical containers. Translation of the flow control valves relative to the cylindrical containers is operable to change an impedance to flow of molten glass through the flow control region, thereby modifying an overall flow rate or circumferential distribution of molten glass from the cylindrical containers. Systems and methods for producing composite glass tube using the apparatus are also disclosed.
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公开(公告)号：US20190144324A1
公开(公告)日：2019-05-16
申请号：US16098298
申请日：2017-05-03
Applicant: CORNING INCORPORATED
Inventor： Gilbert De Angelis , Olivier Fournel , Allan Mark Fredholm , Chunhong Chelsie He , Bruno Le Gallic , Yuehao Li , David Posada-Pineda , Xavier Tellier
Abstract: Disclosed is an apparatus and method of making molten glass. The apparatus includes a glass former having a slot orifice design to deliver a glass ribbon. The slot orifice design can include a transition section, a slot extension, and external structural reinforcements. In some embodiments, the orifice opening distance of the slot extension varies along the width of the orifice. In some embodiments, the orifice has an orifice opening distance that is smaller at the center of the slot extension than at the edges of the slot extension, which limits glass flow at the center of the slot extension. Also disclosed is a method of making glass using the disclosed apparatus.
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公开(公告)号：US11591248B2
公开(公告)日：2023-02-28
申请号：US15604978
申请日：2017-05-25
Applicant: CORNING INCORPORATED
Inventor： Gilbert De Angelis , Dale Madard Fisher, Jr. , Shripad Joshi , Sowmya Krishnamurthy , Elias Panides , David Posada-Pineda
IPC: C03B17/04
Abstract: Heating apparatuses and methods for glass tubing manufacturing are disclosed. A heating apparatus for glass tubing manufacturing includes a bowl configured to receive molten glass and a plurality of heating elements thermally coupled to the bowl. The bowl has a bowl height and includes a tub portion configured to hold the molten glass, a bowl well extending beneath the tub portion, and an orifice at a distal end of the bowl well. The plurality of heating elements include a first heating element disposed at a first vertical location along the bowl height, a second heating element disposed at a second vertical location along the bowl height, wherein the first vertical location is vertically spaced apart from the second vertical location.
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公开(公告)号：US20190161379A1
公开(公告)日：2019-05-30
申请号：US16201472
申请日：2018-11-27
Applicant: CORNING INCORPORATED
Inventor： Dale Madard Fisher, JR. , David Posada-Pineda
Abstract: An apparatus for producing composite glass tube with a plurality of glass layers includes a plurality of cylindrical containers of increasing inner dimensions concentrically arranged and stationary. Each cylindrical container includes a side wall, bottom wall, and a delivery ring. Adjacent cylindrical containers define an annular chamber, a flow control region, and an annular flow channel therebetween. The apparatus includes at least one flow control valve positioned in the flow control region and translatable relative to the adjacent cylindrical containers. Translation of the flow control valves relative to the cylindrical containers is operable to change an impedance to flow of molten glass through the flow control region, thereby modifying an overall flow rate or circumferential distribution of molten glass from the cylindrical containers. Systems and methods for producing composite glass tube using the apparatus are also disclosed.
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Patent Agency Ranking
公开(公告)号：US20170341966A1
公开(公告)日：2017-11-30
申请号：US15604978
申请日：2017-05-25
Applicant: CORNING INCORPORATED
Inventor： Gilbert De Angelis , Dale Madard Fisher, Jr. , Shripad Joshi , Sowmya Krishnamurthy , Elias Panides , David Posada-Pineda
IPC: C03B17/04
CPC classification number: C03B17/04
Abstract: Heating apparatuses and methods for glass tubing manufacturing are disclosed. A heating apparatus for glass tubing manufacturing includes a bowl configured to receive molten glass and a plurality of heating elements thermally coupled to the bowl. The bowl has a bowl height and includes a tub portion configured to hold the molten glass, a bowl well extending beneath the tub portion, and an orifice at a distal end of the bowl well. The plurality of heating elements include a first heating element disposed at a first vertical location along the bowl height, a second heating element disposed at a second vertical location along the bowl height, wherein the first vertical location is vertically spaced apart from the second vertical location.
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公开(公告)号：US10683226B2
公开(公告)日：2020-06-16
申请号：US15587000
申请日：2017-05-04
Applicant: CORNING INCORPORATED
IPC: C03B17/04
Abstract: A bell assembly for a glass tubing manufacturing apparatus includes a bell head and a support connected to the bell head. The support includes a bell shaft with an inner bore and an outer surface, and a liner positioned in the inner bore of the bell shaft. A thermal shield extends along the outer surface of the bell shaft and reduces temperature variation across a width of the bell shaft during glass tubing manufacturing.
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公开(公告)号：US20200172423A1
公开(公告)日：2020-06-04
申请号：US16690626
申请日：2019-11-21
Applicant: CORNING INCORPORATED
Inventor： Adam Charles Berkey , Martin A de la Torre , Sowmya Krishnamurthy , Jiandong Meng , David Posada-Pineda , Ryan Daniel Ratchford
Abstract: A muffle for a glass tube forming process includes an inlet end coupled to a bowl, an outlet end having an inner dimension larger than an inner dimension of the inlet end, and a sidewall extending from inlet end to the outlet end. A radial distance from a center axis of the muffle to an inner surface of the sidewall increases from the inlet end to the outlet end and the sidewall is substantially free of abrupt changes in the radial distance that produce instability regions within the muffle. The muffle includes a channel between an outer surface of a portion of the sidewall and an insulating layer disposed about the sidewall, the channel being operable to pass a heat transfer fluid into thermal communication with the sidewall to provide cooling to the muffle. Glass forming systems including the muffle and glass tube forming processes are also disclosed.
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公开(公告)号：US10167221B2
公开(公告)日：2019-01-01
申请号：US15328254
申请日：2015-07-17
Applicant: CORNING INCORPORATED
Inventor： Gilbert De Angelis , David Posada-Pineda
Abstract: A prefiner (28) is described and includes a chamber (34) for receiving molten glass exiting a submerged combustion melter. The prefiner (28) also includes a foam breaker (36) and an exit conduit (38). The molten glass holding chamber includes a top portion (42), a bottom portion (40), and an enclosing sidewall (44). The top portion (42) includes an opening to accommodate the foam breaker (36), which is positioned to break the glass bubbles within the chamber. The exit conduit (38) resides within the chamber (34) and is in fluid communication with an outlet (68) in the sidewall (44). The exit conduit (38) is positioned to permit molten glass to flow from the lower section of the chamber to the outlet (68) and to the next stage of processing, typically a finer.
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公开(公告)号：US11414336B2
公开(公告)日：2022-08-16
申请号：US16690626
申请日：2019-11-21
Applicant: CORNING INCORPORATED
Inventor： Adam Charles Berkey , Martin A de la Torre , Sowmya Krishnamurthy , Jiandong Meng , David Posada-Pineda , Ryan Daniel Ratchford
Abstract: A muffle for a glass tube forming process includes an inlet end coupled to a bowl, an outlet end having an inner dimension larger than an inner dimension of the inlet end, and a sidewall extending from inlet end to the outlet end. A radial distance from a center axis of the muffle to an inner surface of the sidewall increases from the inlet end to the outlet end and the sidewall is substantially free of abrupt changes in the radial distance that produce instability regions within the muffle. The muffle includes a channel between an outer surface of a portion of the sidewall and an insulating layer disposed about the sidewall, the channel being operable to pass a heat transfer fluid into thermal communication with the sidewall to provide cooling to the muffle. Glass forming systems including the muffle and glass tube forming processes are also disclosed.
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