Gaseous Support Patents (Class 65/182.2)
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Patent number: 11718115Abstract: The present invention relates to architected stamps having beneficial printing properties. In particular, negative Poisson ratio structures and/or porous reservoirs can be employed to control fluid dynamics and to provide metered ink transfer.Type: GrantFiled: November 23, 2020Date of Patent: August 8, 2023Assignee: National Technology & Engineering Solutions of Sandia, LLCInventors: Bryan James Kaehr, Michael Alfonso Gallegos, Chelsea M. Garcia, Peter Randall Schunk, Ethan Benjamin Secor
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Patent number: 9643875Abstract: A fusion draw apparatus includes a pair of engagement rollers. At least one of the pair of engagement rollers includes a circumferential knife edge configured to cooperate with the other of the pair of engagement rollers to thin the edge portion or sever the edge portion from a central portion of the glass ribbon within the viscous zone of the glass ribbon. In further examples, fusion draw methods include the step of thinning the edge portion or severing the edge portion from the central portion of the glass ribbon within the viscous zone.Type: GrantFiled: February 24, 2012Date of Patent: May 9, 2017Assignee: Corning IncorporatedInventors: Pierre Brunello, Allan Mark Fredholm, Claude Francois Maurice Gille, Kamel Madi, Xavier Tellier
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Patent number: 9096456Abstract: A mold for bending glass, including a cellular solid material including cells that form cavities in the molding area, the cells representing more than 40% of the volume of the material. A low-heat-capacity tool bends glass panes in the context of processing tempered or laminated glass. A process for manufacturing the bending mold includes assembly of metal sheets of different shapes placed parallel to one another so as to form a cellular unit, then machining of the molding area of the unit, the area being placed substantially perpendicular to the metal sheets.Type: GrantFiled: May 18, 2011Date of Patent: August 4, 2015Assignee: SAINT-GOBAIN GLASS FRANCEInventors: Herve Thellier, Christophe Machura, Robert Lagneaux, Romain Thepot
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Patent number: 9022699Abstract: A non-contact support platform system is provided for supporting a substantially flat object. The system includes a platform with a first plurality of pressure ports and a first plurality of vacuum ports for inducing a fluid cushion to support the object at a distance from the platform. The system further includes a second plurality of pressure ports located at a predetermined zone of the platform for increasing the distance of the object from the platform at the predetermined zone.Type: GrantFiled: February 17, 2014Date of Patent: May 5, 2015Assignee: Coreflow LtdInventors: Hilel Richman, Oded Yehoshua Licht, Oded Hamburger, Yuval Yassour, Boaz Nishri, Arie Harnik, Alla Soudakovitch, Shay Levavy
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Publication number: 20150099618Abstract: Embodiments of a method of forming a glass article are disclosed. The methods include supplying a glass ribbon in a first direction and redirecting the glass ribbon to a second direction different from the first direction without contacting the glass ribbon with a solid material. The glass ribbon may exhibit a viscosity of less than about 108 Poise and a thickness of about 1 mm or less. Embodiments of a glass or glass-ceramic forming apparatus are also disclosed. The apparatus may include a glass feed device for supplying a glass ribbon in a first direction and a redirection system disposed underneath the glass feed device for redirecting the glass ribbon to a second direction. In one or more embodiments, the redirection system comprising at least one gas bearing system for supplying a gas film to support the glass ribbon.Type: ApplicationFiled: October 3, 2014Publication date: April 9, 2015Inventors: Antoine Gaston Denis Bisson, Allan Mark Fredholm, Vincent Guillard
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Publication number: 20150096331Abstract: An apparatus for conveying glass sheets in an air support table, which is included in a heating furnace and provided with blast apertures and exhaust apertures, and in which the blast apertures are connected to a plenum chamber present underneath the air support table. The exhaust apertures are connected to exhaust passages present inside the table. The exhaust passages have at least one of their ends provided with gate/gates capable of being opened and closed, by means of which the flow of air from the exhaust passages' ends adjacent to the gate/gates can be completely or partially blocked.Type: ApplicationFiled: September 30, 2014Publication date: April 9, 2015Inventors: Mikko RANTALA, Harri Kylväjä, Jukka Vehmas
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Patent number: 8997521Abstract: A method and apparatus for supporting and heating glass sheets for tempering or bending on a hot gas cushion. One edge of the glass is supported on transport rollers and the rotation axes of the rollers are transverse relative to the plane of the glass. The glass sheet is supported by means of gas pressure on a planar surface which has an angle of inclination of 2-20° relative to horizontal plane. The angle of inclination is sloping towards that edge of the glass which is supported by the transport rollers. Gas is expelled through the planar surface by way of gas outlet slots or holes. As the glass is moving, a gas is drawn or blown by fans from a certain part of the glass through the planar surface more than from the rest of the area by adjusting the rotating speed of the fans or by changing the suction pressure or delivery side pressure of the fans.Type: GrantFiled: January 6, 2011Date of Patent: April 7, 2015Assignee: Glaston Services Ltd. OyInventors: Jukka Vehmas, Mikko Rantala
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Publication number: 20140335322Abstract: A process using a three-piece mold for making a three-dimensionally shaped glass article having a flat area and a curved/bend area is disclosed. The process includes placing a glass sheet on a mold having a shaping surface with a desired surface profile for the shaped glass article including a flat area and a bend area, moving a flat area plunger toward the glass sheet to compress the glass sheet, heating a portion of the glass sheet corresponding to an area above the bend area of the mold to a temperature above a forming temperature, and moving a bend area plunger toward the heated glass sheet to compress the heated glass sheet. A temperature of the glass sheet in the area above the bend area of the mold is higher than a temperature of the glass sheet in the area above the flat area of the mold when compressing the heated glass sheet with the bend area plunger.Type: ApplicationFiled: May 5, 2014Publication date: November 13, 2014Applicant: CORNING INCORPORATEDInventors: Weiwei Luo, Elias Panides, Rohit Rai, Irene Marjorie Slater, Ljerka Ukrainczyk, Srinivasa Rao Vaddiraju, Sam Samer Zoubi
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Patent number: 8789392Abstract: An apparatus for shaping a glass sheet includes an engagement member including a flexible bumper comprising a flexible material. The flexible bumper is configured to operate at the forming temperature to reduce an impact stress between the engagement member and the edge portion of the glass sheet. In another example, an apparatus for shaping a sheet of glass includes a push member configured to engage an end edge portion of the glass sheet to push the glass sheet to be transported over the support surface. The push member includes a push flange extending in a direction away from the support surface. The push flange includes a plurality of apertures configured to increase the resistance of conductive heat transfer between the end edge portion of the glass sheet and the push member. In a further example an engagement member can fabricated from a material having a coefficient of thermal conductivity that is less than a coefficient of thermal conductivity of the stainless steel.Type: GrantFiled: May 31, 2012Date of Patent: July 29, 2014Assignee: Corning IncorporatedInventors: Thomas M. Cleary, Larry G. Smith, John C. Thomas
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Patent number: 8690489Abstract: A non-contact support platform system is provided for supporting a substantially flat object. The system includes a platform with a first plurality of pressure ports and a first plurality of vacuum ports for inducing a fluid cushion to support the object at a distance from the platform. The system further includes a second plurality of pressure ports located at a predetermined zone of the platform for increasing the distance of the object from the platform at the predetermined zone.Type: GrantFiled: March 11, 2009Date of Patent: April 8, 2014Assignee: Coreflow Ltd.Inventors: Hilel Richman, Oded Yehoshua Licht, Oded Hamburger, Yuval Yassour, Boaz Nishri, Arie Harnik, Alla Soudakovitch, Shay Levavy
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Patent number: 8667815Abstract: In order to permit more effective cooling in comparison to the prior art, in particular in its floor area, of a hollow glass article (1) standing upright on the base (2) of a setting plate (4) provided with transcurrent orifices (9, 9?, 9?) forming a cavity (8) between a base (2) and the facing surface of the setting plate (4) of the standing surface (2?), it is proposed to utilize a part of the orifices (9) situated inside the standing surface (2?) for the supply of cooling air into the cavity (8), and to utilize the remaining orifices (9?) inside the standing surface (2?) only for the extraction of cooling air from the cavity (8).Type: GrantFiled: February 3, 2009Date of Patent: March 11, 2014Assignee: Heye International GmbHInventor: Siegfried Schwarzer
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Publication number: 20130319046Abstract: An apparatus for shaping a glass sheet includes an engagement member including a flexible bumper comprising a flexible material. The flexible bumper is configured to operate at the forming temperature to reduce an impact stress between the engagement member and the edge portion of the glass sheet. In another example, an apparatus for shaping a sheet of glass includes a push member configured to engage an end edge portion of the glass sheet to push the glass sheet to be transported over the support surface. The push member includes a push flange extending in a direction away from the support surface. The push flange includes a plurality of apertures configured to increase the resistance of conductive heat transfer between the end edge portion of the glass sheet and the push member. In a further example an engagement member can fabricated from a material having a coefficient of thermal conductivity that is less than a coefficient of thermal conductivity of the stainless steel.Type: ApplicationFiled: May 31, 2012Publication date: December 5, 2013Inventors: Thomas M. Cleary, Larry G. Smith, John C. Thomas
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Patent number: 8573005Abstract: An apparatus for mass production of 3D articles from 2D glass-containing sheets includes a heating section having a heating station that includes a heating chamber adapted to receive a 2D glass-containing sheet, a pneumatic bearing system proximate to the heating chamber for suspending the 2D glass-containing sheet inside the heating chamber, and a heater system proximate to the heating chamber for supplying heat to the heating chamber. A forming section downstream of the heating section has a forming station that includes a mold system adapted to shape a heated 2D glass-containing sheet into a 3D article. A cooling section downstream of the forming section has a cooling chamber adapted to controllably cool off one or more 3D articles. A method of mass producing 3D articles from 2D glass-containing sheets involves use of the apparatus.Type: GrantFiled: February 24, 2011Date of Patent: November 5, 2013Assignee: Corning IncorporatedInventors: Thierry Luc Alain Dannoux, Paul Delautre, Frederic Henri Florent, Allan Mark Fredholm, Patrick Jean Pierre Herve, Jean-Pierre Henri Rene Lereboullet, Stephane Poissy
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Publication number: 20130260153Abstract: A method for forming a lubricant layer on the surface of a glass and a method for manufacturing a glass using the same prevents scratches from occurring at the surface of a glass and decreases corrosion of glass manufacturing equipment. The method for manufacturing a glass includes forming a glass, supplying SO2 gas and a SO2 gas oxidation catalyst to the glass under an oxidation environment to form a lubricant layer at the lower surface of the glass, and annealing the glass.Type: ApplicationFiled: May 21, 2013Publication date: October 3, 2013Applicant: LG CHEM, LTD.Inventors: Han-Kook KIM, Jung-Sik BANG, Duk-Sik HA, Kyoung-Hoon MIN, Du-Sun HWANG
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Patent number: 8397539Abstract: A non-contact dancer mechanism for conveying a web of brittle material includes a guide rail and a variable position web support plenum adjustably positioned on the guide rail. The variable position web support plenum may include an arcuate outer surface with a plurality of fluid vents for emitting a fluid to support the web of brittle material over and spaced apart from the arcuate outer surface thereby preventing mechanical contact and damage to the web of brittle material. A support plenum counterbalance may be mechanically coupled to the variable position web support plenum, wherein the support plenum counterbalance supports at least a portion of the weight of the variable position web support plenum on the guide rail. Apparatuses incorporating the non-contact dancer mechanism and methods for using the non-contact dancer mechanism for handling continuous webs of brittle material are also disclosed.Type: GrantFiled: February 18, 2010Date of Patent: March 19, 2013Assignee: Corning IncorporatedInventors: Chester H. H. Chang, Kevin A Cole, Sean M. Garner, Gary E. Merz, Richard H. Weachock
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Publication number: 20130047671Abstract: Disclosed is a method of reducing the compaction of glass formed by a down draw process. The glass may be a glass sheet or a glass ribbon. Once the glass is formed, it is thermally treated on a molten metal bath for a time and at a temperature effective to reduce the fictive temperature of the glass below a predetermined level. In one embodiment, a glass ribbon is formed in a fusion process and the glass ribbon redirected onto a molten metal bath where the ribbon is thermally treated.Type: ApplicationFiled: August 29, 2011Publication date: February 28, 2013Inventor: Jeffrey T. Kohli
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Publication number: 20130047673Abstract: A method of tempering glass and an apparatus for tempering glass, in which a heater is used and high frequency is generated. The method includes a heating step of heating a piece of glass using a heater and a high frequency generator and a cooling step of cooling the piece of glass by quenching.Type: ApplicationFiled: August 27, 2012Publication date: February 28, 2013Applicant: SAMSUNG CORNING PRECISION MATERIALS CO., LTD.Inventors: Hoikwan Lee, Kyungmin Yoon, Seo-Yeong Cho, YoonYoung Kwon, Jinsu Nam, Kyungwook Park, Jaeyoung Choi
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Patent number: 8361233Abstract: The present invention provides a glass support system, including methods and equipment for supporting a glass substrate on a column of air. The disclosed glass alignment equipment may be used to prevent or reduce defects or contamination on the surface of a glass substrate which may arise when the glass is aligned prior to etching. In particular, a support pin of the present invention may be used with an air circulation system to support or align glass over a column of air so as to reduce or prevent defects or contamination on the glass in dry etching processes used in the manufacturing of LCDs and other devices.Type: GrantFiled: June 23, 2005Date of Patent: January 29, 2013Assignee: LG Display Co., Ltd.Inventor: Hyuk Min Kwon
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Patent number: 8297077Abstract: In order to provide a particularly homogeneous pressure and temperature profile in a gas cushion for the levitating support of glass or glass ceramic, the invention provides a device (19) for transporting or supporting glass ceramic or glass, which comprises at least one diaphragm (1, 2) that has at least one continuous bearing surface (3) and at least one gas feed chamber (51-55) and at least one gas discharge chamber (71-75), the gas feed chamber (51-55) and the gas discharge chamber (71-75) having a gas-permeable connection to the bearing surface (3).Type: GrantFiled: December 9, 2005Date of Patent: October 30, 2012Assignee: Schott AGInventors: Sybill Nüttgens, Ulrich Lange, Michael Clauss, Andreas Langsdorf, Gerhard Hahn
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Publication number: 20120216573Abstract: An apparatus for mass production of 3D articles from 2D glass-containing sheets includes a heating section having a heating station that includes a heating chamber adapted to receive a 2D glass-containing sheet, a pneumatic bearing system proximate to the heating chamber for suspending the 2D glass-containing sheet inside the heating chamber, and a heater system proximate to the heating chamber for supplying heat to the heating chamber. A forming section downstream of the heating section has a forming station that includes a mold system adapted to shape a heated 2D glass-containing sheet into a 3D article. A cooling section downstream of the forming section has a cooling chamber adapted to controllably cool off one or more 3D articles. A method of mass producing 3D articles from 2D glass-containing sheets involves use of the apparatus.Type: ApplicationFiled: February 24, 2011Publication date: August 30, 2012Inventors: Thierry Luc Alain Dannoux, Paul Delautre, Frederic Henri Florent, Allan Mark Fredholm, Patrick Jean Pierre Herve, Jean-Pierre Henri Rene Lereboullet, Stephane Poissy
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Publication number: 20120167630Abstract: An apparatus for manufacturing tempered glass. A transportation unit transports a glass substrate that is intended to be tempered. An ionizer ionizes alkali oxides in the glass substrate by radiating energy onto the glass substrate. A dielectric heating unit increases the temperature of the inner portion of the glass substrate in which the alkali oxides are ionized by the ionizer.Type: ApplicationFiled: December 27, 2011Publication date: July 5, 2012Inventors: Hoikwan LEE, Seo-Yeong CHO, Yoon Young KWON, Kyungwook PARK, Kyungmin YOON, Jongsung LEE, Jaeyoung CHOI, Gennady KIZEVICH
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Publication number: 20120167626Abstract: An apparatus for manufacturing tempered glass. A heating unit heats a glass substrate that is intended to be tempered. A pattern-forming unit forms a pattern on a surface of the glass substrate heated by the heating unit. A dielectric heating unit increases the temperature of the inner portion of the glass substrate, on which the pattern is formed by the pattern-forming unit. A cooling unit cools the glass substrate, the inside temperature of which is increased by the dielectric heating unit.Type: ApplicationFiled: December 28, 2011Publication date: July 5, 2012Inventors: Hoikwan Lee, Seo-Yeong Cho, YoonYoung Kwon, Kyungwook Park, Kyungmin Yoon, Jongsung Lee, Jaeyoung Choi, Gennady Kizevich
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Publication number: 20120131962Abstract: A cleaving apparatus holds at least one surface (effective surface) of a band-like glass film in a non-contact state to suppress a situation that wavy portions reach a region in which the band-like glass film is to be cleaved. The cleaving apparatus cleaves the band-like glass film, which is being conveyed in a longitudinal direction thereof, along a conveyance direction thereof using a thermal stress generated through localized heating and cooling of a heated region. The localized heating and the cooling is performed on a preset cleaving line extending along the conveyance direction of the band-like glass film. The cleaving apparatus includes an air knife for supplying air to a front surface of the band-like glass film to retain the film on a conveyor at a position on an upstream side of a cleaving region in the conveyance direction.Type: ApplicationFiled: November 15, 2011Publication date: May 31, 2012Inventors: Kaoru Mitsugi, Naohiro Ikai, Hiroshi Adachi, Hiroki Mori
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Publication number: 20120111054Abstract: Methods and apparatus for guiding flexible glass ribbons (13) without mechanically contacting the central portion (4) of the ribbon are provided in which two curved sections are formed in the ribbon which stiffen the ribbon so that lateral forces can be applied to the ribbon without causing it to buckle. The curvatures of the curved sections are along the direction of motion (15) of the ribbon and can be produced using curved air-bars (12,14) and/or pairs of cylindrical rollers (5a,5b,16a,16b). The lateral forces can be applied by pairs of guide rollers (7a,7b,9a,9b) which can be mounted on spring-loaded pivot arms (6,19,29) and can have a complaint outer coating or sleeve (35). The guiding system can be used in the winding of the glass ribbon onto a cylindrical core (11).Type: ApplicationFiled: October 13, 2011Publication date: May 10, 2012Inventors: Douglass L. Blanding, Sean Matthew Garner, Gary Edward Merz, John Earl Tosch
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Patent number: 8132428Abstract: A method for forming glass sheets is performed by a system (10) that includes a forming station (14) having lower and upper molds (28, 30) between which glass sheets G are cyclically received from a furnace (12) on a vacuum transfer platen (34), formed between the lower and upper molds (28, 30), and transferred to a delivery mold (42) for delivery such as to a quench station (16). The vacuum transfer platen (34) and the delivery mold (42) are moved at different elevations into the forming station (14) in respective underlapping and overlapping relationships to each other so each glass sheet forming cycle can begin within the forming station before the prior forming cycle is completed in a time overlapping manner that reduces the cycle time.Type: GrantFiled: August 25, 2008Date of Patent: March 13, 2012Assignee: Glasstech, Inc.Inventors: Michael J. Vild, David B. Nitschke, Dean M. Nitschke, James P. Schnabel, Jr.
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Publication number: 20120042692Abstract: An apparatus for stabilizing a flow of a viscous material, such as a molten glass or glass ceramic material in a tube or rod forming process is disclosed. The apparatus comprises a stabilization member through which the molten glass is passed after leaving the nozzle of a forming vessel. The stabilization member is positioned a finite distance below the nozzle. The column of viscous material is supported by a wall of the stabilization member, or by a gaseous film disposed between the column and the stabilization member. A method of stabilizing the flow of viscous material after it leaves the nozzle during a drawing process is also disclosed.Type: ApplicationFiled: February 22, 2011Publication date: February 23, 2012Inventors: Allan M. Fredholm, Laurent Joubaud
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Publication number: 20120031147Abstract: An apparatus for machining a thin-film layer of a workpiece, which is a transparent glass on which a thin-film layer is disposed on a top surface thereof, includes a workpiece-underside support mechanism for supporting the workpiece in a vertical direction by an air floatation mechanism and a suction mechanism, a clamp device for gripping the workpiece so as to follow the movement in the vertical direction of the workpiece, and a machining head for machining the thin-film layer with a laser beam. The machining head machines the thin-film layer on the top surface of the workpiece by irradiating the workpiece with a laser beam entering through the underside of the workpiece. Further including nozzles, the thin-film layer is machined while the cooling medium is delivered from the nozzles disposed by the thin-film layer side.Type: ApplicationFiled: February 24, 2010Publication date: February 9, 2012Applicant: Hitachi Via Mechanics, Ltd.Inventors: Kunio Arai, Yasuhiko Kanaya, Kazuhisa Ishii, Hiroshi Honda
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Publication number: 20120011890Abstract: A preform production apparatus for precision press molding, which is downsized but can produce preforms at a lower cost, and a production method thereof using the apparatus are provided. The production method of a preform for precision press molding includes forming a molten glass body C by way of receiving and cutting molten glass A, being flowed continuously from a discharge nozzle 2, by a support member 1 or by way of allowing molten glass to fall in drops from a discharge nozzle 2 and receiving thereof by a support member 1, and transferring the molten glass body C from the support member 1 to a mold 5 by way of displacing the support member to near the mold 5, disposed not to be beneath the discharge nozzle 2, while increasing the viscosity of the molten glass body C on the support member 1.Type: ApplicationFiled: September 22, 2011Publication date: January 19, 2012Applicant: OHARA, INC.Inventors: Ryousuke Sakai, Tadanao Shinozaki, Shinobu Aoe
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Patent number: 8069689Abstract: A levitation process for producing fire-polished gobs is provided. The process includes feeding a glass slug into a levitation mold and reducing a through-flow of the fluid between the glass slug and the levitation mold. The levitation mold includes a membrane of a porous material.Type: GrantFiled: July 19, 2005Date of Patent: December 6, 2011Assignee: Schott AGInventors: Klaus Schneider, Peter Durolf, Christian Schenk, Bernd Loffelbein, Ralf Reiter
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Patent number: 8028543Abstract: An apparatus for tempering a bent glass sheet is disclosed. The apparatus comprises means for conveying the sheet through the apparatus and a pair of blastheads for quenching the sheet with quench gas. Each blasthead comprises a plurality of spaced elongate plenums for supplying quench gas to an array of quench nozzles, the nozzles being mutually inclined to provide diverging jets of quench gas. The plenums extend transversely to the direction of conveyance of the sheet, and the array of nozzles is curved in at least one direction. The array may comprise rows of nozzles extending along lines which are curved in the direction of elongation of the plenums; preferably the curvature of the rows matches the average local curvature of the bent glass sheet in the corresponding direction. Also disclosed is a production line incorporating the apparatus.Type: GrantFiled: March 25, 2004Date of Patent: October 4, 2011Assignee: Pilkington PLCInventor: Giovanni Maria Carlomagno
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Patent number: 8025832Abstract: Processes and apparati for shaping sheet glass or thermoplastic materials use force from a layer of a flowing fluid, such as air, between the sheet and a mandrel at close to the softening temperature of the thermoplastic. The shape is preserved by cooling. The shape of the air bearing mandrel and the pressure distribution of the fluid contribute to the final shape. A process can be conducted on one or two surfaces such that the force from the air layer is on one or two surfaces of the sheet. The gap size between the sheet and mandrel determines the pressure profile in the gap, which also determines the final sheet shape. In general, smaller gaps lead to larger viscous forces. The pressure profile depends on the shape of the mandrel, the size of the fluid gap and the sheet and the fluid supply pressure.Type: GrantFiled: May 24, 2007Date of Patent: September 27, 2011Assignee: Massachusetts Institute of TechnologyInventors: Mireille K. Akilian, Mark L. Schattenburg
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Publication number: 20110185770Abstract: There is provided a device for manufacturing a molded glass body, including a fall-prevention means for preventing the glass molded body which has stuck on the upper mold from falling down on the lower mold. Thus, the molded glass body does not damage the lower mold, even if the molded glass body which has stuck on the upper mold falls down from the upper mold, during a period from an end of the pressure molding to releasing and withdrawing the molded glass body obtained by the pressure molding from the any one of the upper mold and the lower mold.Type: ApplicationFiled: September 10, 2009Publication date: August 4, 2011Inventors: Kazuyuki Ogura, Yoshihiro Kamada
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Publication number: 20110167871Abstract: A method and apparatus for supporting and heating glass sheets for tempering or bending on a hot gas cushion. One edge of the glass is supported on transport rollers and the rotation axes of the rollers are transverse relative to the plane of the glass. The glass sheet is supported by means of gas pressure on a planar surface which has an angle of inclination of 2-20° relative to horizontal plane. The angle of inclination is sloping towards that edge of the glass which is supported by the transport rollers. Gas is expelled through the planar surface by way of gas outlet slots or holes. As the glass is moving, a gas is drawn or blown by fans from a certain part of the glass through the planar surface more than from the rest of the area by adjusting the rotating speed of the fans or by changing the suction pressure or delivery side pressure of the fans.Type: ApplicationFiled: January 6, 2011Publication date: July 14, 2011Applicant: GLASTON SERVICES LTD. OYInventors: Jukka VEHMAS, Mikko Rantala
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Publication number: 20110162411Abstract: Process for producing a structure on one of the faces of a glass ribbon, carried out continuously using a printing device, in which: the printing device (8) is placed in a zone (A) in which the ribbon (B) is at an average temperature T1 insufficient for printing the pattern of the printing device onto the ribbon according to the nature of the pattern to be printed, to the pressure between the printing device and the ribbon and to the time during which the ribbon is in contact with the printing device; that face to be etched, upstream of the printing device (8), is heated so as to bring a limited and sufficient thickness of the ribbon to a temperature T2>T1 necessary for printing the pattern of the printing device onto the ribbon according to the nature of the pattern to be etched, to the pressure between the printing device and the ribbon and to the time during which the ribbon is in contact with the printing device, while still keeping the rest of the ribbon at a temperature close to T1; the heat flux traType: ApplicationFiled: June 30, 2009Publication date: July 7, 2011Applicant: FIVES STEINInventors: Wolf Stefan Kuhn, Bertrand Strock, Francois Pahmer, Eric Bleuset
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Patent number: 7913517Abstract: The present invention relates to production of a flat glass, which can improve the surface smoothness of a flat glass in the moving direction and which prevents formation of stripes on the flat glass. A fixed bed 15 comprising a plurality of supports 12 arranged in such a state that they will not move at least in a direction in parallel with the moving direction of a glass ribbon 13, and having grooves 12B to let loose the steam generated by vaporization of a steam film forming agent formed between the respective supports 12, is used, and the amount of the steam let loose from the grooves is adjusted in accordance with the glass temperature distribution in the moving direction of the glass ribbon 13 which moves on the fixed bed 15.Type: GrantFiled: October 26, 2007Date of Patent: March 29, 2011Assignee: Asahi Glass Company, LimitedInventors: Yoshihiro Shiraishi, Motoichi Iga, Itsuo Matsumoto, Toru Kamihori
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Patent number: 7908885Abstract: Thin substrates, such as flat glass panels, are levitated on a porous media air bearing creating a pressurized film of air and preloaded against the air film by negative pressure areas. The pressure can be distributed most uniformly across the pressure areas by defusing the pressure through a porous medium. Such a bearing can be used for glass flattening by holding the glass such that the unevenness is migrated to the side opposite the side to be worked on.Type: GrantFiled: November 8, 2005Date of Patent: March 22, 2011Assignee: New Way Machine Components, Inc.Inventor: Andrew J. Devitt
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Patent number: 7866186Abstract: The gas cushion serves to support a preheated glass sheet and is produced by a chamber, which is connected to a source (21) of compressed gas. The upper wall (10) of the chamber is adapted to the shape of the glass sheet and has a plurality of apertures for the passage of gas in the form of nozzles (14), which comprise an entry bore (22) and, following thereupon, a progressively widening exit hole (16) with a nozzle exit area (15). The upper wall (10) of the chamber has a greater degree of perforation (sum of the nozzle exit areas (15) in relation to the total area of the respective zone) in its edge zone (12, 13) than in its central zone (11). The nozzles ensure that no jet marks can arise. The gas of the gas cushion can also flow out undisturbed at the side, so that no cooling edges are present and the occurrence of cooling shadows is accordingly avoided.Type: GrantFiled: March 22, 2004Date of Patent: January 11, 2011Assignee: Pilkington Automotive Deutschland GmbHInventors: Dieter Funk, Joachim Pilz, Peter Michels
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Publication number: 20100307195Abstract: A device for processing a usable surface extending on a usable side of a substrate (11) having a large surface area, particularly such having a length or width >0.5 m and a thickness <1 cm, through the substrate, has at least three bearing elements (21, 23, 25) disposed at a distance from each other for receiving the substrate (11), and a movable processing device for processing the substrate between the bearing elements from the rear of the substrate. The bearings support the substrate, and processing of the glass substrate can be carried out in the at least two intermediate regions between the bearing elements from the rear. At least one non-terminal bearing element is disposed displaceable or movable relative to the substrate in order to make the entire usable surface of the substrate accessible to the processing device by displacement or movement.Type: ApplicationFiled: January 12, 2009Publication date: December 9, 2010Applicant: IWORKS AGInventor: Arthur Buchel
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Patent number: 7748237Abstract: The invention disclose a convection glass heating furnace, which includes upper and lower furnace bodies, at least one gas-collection box are set in the upper and lower furnace bodies respectively, glass inlets and outlets are setup in the gas-collection box, and a jet-flow plate is set at the gas outlets. The gas inlets of gas-collection box are connected with the exhaust port of a blower fan through pipelines. Gas heating devices are setup in the gas-collection boxes. The gas inlets of the blower fan and its upstream gas routes along with the exhaust port of the blower fan and its downstream gas route form a gas circulation loop together. Glass is heated in the heating furnace of the invention by the hot gas sprayed on its surfaces, so the deficiencies of low heating efficiency and long heating time can be effectively avoided when heating the glass with high reflectivity and transmission ratio.Type: GrantFiled: May 27, 2004Date of Patent: July 6, 2010Assignee: Landglass Technology Co. LtdInventor: Yan Zhao
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Patent number: 7743628Abstract: The invention relates to a method and device for non-contact molding of fused glass or glass ceramic gobs by means of gas levitation, comprising the following method steps: a pre-form is generated, the pre-form is brought close to a molding tool, which may be connected to a compressed gas source on the open-pored region thereof facing the pre-form in order to generate a gas cushion between the molding tool and the pre-form and the molding tool is directly heated at least during a part of the molding phase.Type: GrantFiled: October 2, 2002Date of Patent: June 29, 2010Assignee: Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V.Inventors: Andreas Langsdorf, Norbert Greulich-Hickmann, Jörg Adler, Michael Piwonski
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Patent number: 7645111Abstract: A method for putting a glass plate to a target position includes (a) putting the glass plate at a preliminary position above an air table that discharges air upwardly, by moving a suction member that supports the glass plate through suction; (b) releasing suction of the suction member, while air is discharged upwardly from the air table, thereby floating the glass plate at the preliminary position above the air table; and (c) moving a pressing member in a horizontal direction, while the pressing member is in abutment with a top surface of the glass plate and while air is discharged upwardly from the air table, thereby moving the glass plate in the horizontal direction from the preliminary position above the air table to the target position above the air table by a frictional force generated between the pressing member and the glass plate.Type: GrantFiled: June 28, 2004Date of Patent: January 12, 2010Assignee: Central Glass Company, LimitedInventors: Takeshi Mori, Tomoki Matsuba, Takashi Ushirone
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Patent number: 7540173Abstract: For bending a glass sheet so that the glass sheet has a compound curvature, an apparatus comprises a furnace including hearth beds on a bed support and a quenching unit provided with upper and lower air blowers. The final hearth bed may have a top surface with a simple curvature, be provided with one upstream corner cut away thereby defining a cut surface section and arranged in such a manner that the cut surface section is nearly parallel to the hearth bed adjacent to the final hearth bed. Alternatively, the final hearth bed may have a top surface with a compound curvature, so that the glass sheet is bent under the conditions set by controlling a temperature in a downstream part of the furnace, adjusting the inclination of the lower air blower and/or rotating final hearth bed so as to reverse the upstream and downstream ends thereof.Type: GrantFiled: February 9, 2006Date of Patent: June 2, 2009Assignee: Central Glass Company, LimitedInventors: Masami Nishitani, Makoto Shinohara
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Publication number: 20090107180Abstract: A preform production apparatus for precision press molding, which is downsized but can produce preforms at a lower cost, and a production method thereof using the apparatus are provided. The production method of a preform for precision press molding includes forming a molten glass body C by way of receiving and cutting molten glass A, being flowed continuously from a discharge nozzle 2, by a support member 1 or by way of allowing molten glass to fall in drops from a discharge nozzle 2 and receiving thereof by a support member 1, and transferring the molten glass body C from the support member 1 to a mold 5 by way of displacing the support member to near the mold 5, disposed not to be beneath the discharge nozzle 2, while increasing the viscosity of the molten glass body C on the support member 1.Type: ApplicationFiled: October 24, 2008Publication date: April 30, 2009Inventors: Ryousuke Sakai, Tadanao Shinozaki, Shinobu Aoe
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Patent number: 7401476Abstract: A heated and softened glass sheet is put on a bending surface of a frame unit to be preliminarily bent by gravity before the glass sheet is pressed by an upper mold and the frame unit. There are steps for using a certain means for controlling an amount of preliminary bending to control deformation of the glass sheet caused by the preliminary bending; and pressing the preliminarily bent glass sheet by the upper mold and the frame unit.Type: GrantFiled: December 2, 2003Date of Patent: July 22, 2008Assignee: Asahi Glass Company, LimitedInventors: Masao Fukami, Shinya Oota, Tatsuo Yajima, Tomio Kajikawa, Mikinao Sasaki
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Patent number: 7377130Abstract: The method of making globular or spherical bodies of optical quality includes filling receptacles (2) in a heat-resistant support (3) made of a porous material with glass gobs (1); conducting gas through the heat-resistant support so that a gas flow (4) passes through the support in a direction (14) opposite to a direction in which gravity acts; heating the heat-resistant support (3) to a temperature at which the glass gobs (1) have a viscosity of up to about 106 poise; maintaining the support (3) at this temperature for a predetermined time interval; and then cooling the support (3) to ambient temperature while continuing to provide the gas flow (4) through the support (3).Type: GrantFiled: February 2, 2004Date of Patent: May 27, 2008Assignee: Schott AGInventors: Andreas Langsdorf, Frank Buellesfeld
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Publication number: 20080115536Abstract: The present invention relates to production of a flat glass, which can improve the surface smoothness of a flat glass in the moving direction and which prevents formation of stripes on the flat glass. A fixed bed 15 comprising a plurality of supports 12 arranged in such a state that they will not move at least in a direction in parallel with the moving direction of a glass ribbon 13, and having grooves 12B to let loose the steam generated by vaporization of a steam film forming agent formed between the respective supports 12, is used, and the amount of the steam let loose from the grooves is adjusted in accordance with the glass temperature distribution in the moving direction of the glass ribbon 13 which moves on the fixed bed 15.Type: ApplicationFiled: October 26, 2007Publication date: May 22, 2008Applicant: ASAHI GLASS COMPANY LIMITEDInventors: Yoshihiro SHIRAISHI, Motoichi Iga, Itsuo Matsumoto, Toru Kamihori
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Patent number: 7344350Abstract: The invention discloses a transporting apparatus that transmits a drive force to a transported object in a state where the transported object is supported by a air-supplying-type support apparatus. In one implementation thereof, a device for transferring drive force to a transported object transfers drive force to one side in the width direction, which is perpendicular to the transporting direction. In another implementation thereof, the transporting apparatus can be switched between a horizontal state in which the transported object is supported substantially horizontally, and an upright state.Type: GrantFiled: August 18, 2004Date of Patent: March 18, 2008Assignee: Daifuku Co., Ltd.Inventors: Yoshiteru Ikehata, Takayoshi Ono, Yuichi Morimoto
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Patent number: 7337633Abstract: The present invention relates to production of a flat glass, which can improve the surface smoothness of a flat glass in the moving direction and which prevents formation of stripes on the flat glass. A fixed bed 15 comprising a plurality of supports 12 arranged in such a state that they will not move at least in a direction in parallel with the moving direction of a glass ribbon 13, and having grooves 12B to let loose the steam generated by vaporization of a steam film forming agent formed between the respective supports 12, is used, and the amount of the steam let loose from the grooves is adjusted in accordance with the glass temperature distribution in the moving direction of the glass ribbon 13 which moves on the fixed bed 15.Type: GrantFiled: December 22, 2004Date of Patent: March 4, 2008Assignee: Asahi Glass Company, LimitedInventors: Yoshihiro Shiraishi, Motoichi Iga, Itsuo Matsumoto, Toru Kamihori
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Patent number: 7260959Abstract: A glass handling system and method are described herein where an enhanced robot is used to engage and hold a glass sheet in a manner that minimizes the motion of the glass sheet as it is moved from one point to another point in a glass manufacturing facility. The enhanced robot engages and holds the glass sheet by using one or more suction cups and one or more aero-mechanical devices.Type: GrantFiled: August 27, 2004Date of Patent: August 28, 2007Assignee: Corning IncorporatedInventors: Chester H. Chang, Michael Y. Nishimoto
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Patent number: 7222710Abstract: A load conveyance device composed of: a load supporting device having a through hole passing in a gravity direction, and a fluid supplying device to supply a fluid into the through hole, wherein when load is dropped into the through hole from a top of the through hole, the load is supported under a floating condition by a force of the fluid in the through hole, and when the load is not supported by change of the force of the fluid, the load is dropped from a lower end of the through hole to an outside.Type: GrantFiled: July 15, 2003Date of Patent: May 29, 2007Assignee: Konica CorporationInventors: Shigeru Hosoe, Hiroshi Nagoya, Nobuyuki Baba