With Annealing Or Tempering Patents (Class 65/69)
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Patent number: 10000408Abstract: A glass tempering furnace and a method for heating a glass sheet. The glass sheet is heated in the glass tempering furnace by blowing heating air on the top surface of the glass sheet, and the blowing distance of the heating air from the top surface of the glass sheet is adjusted.Type: GrantFiled: July 11, 2017Date of Patent: June 19, 2018Assignee: TAIFIN GLASS MACHINERY OYInventors: Petri Juhani Lammi, Esa Ensio Lammi, Jarno Tapio Nieminen, Jukka Tapani Sääksi
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Patent number: 9938185Abstract: A glass container and related methods of manufacturing and coating glass containers. The glass container includes an inorganic-organic hybrid coating over at least a portion of an exterior surface of a glass substrate.Type: GrantFiled: July 2, 2012Date of Patent: April 10, 2018Assignee: Owens-Brockway Glass Container Inc.Inventors: Michael P. Remington, Jr., Pramod K. Sharma, Daniel Baker
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Patent number: 8893527Abstract: A method for annealing a glass disk is disclosed. The glass disk is placed on a base, whereby the bottom surface of the glass disk makes a contact with the base, and the top surface of the glass disk is exposed to air. The glass disk is heated with thermal energy supplied to the glass disk, the thermal energy comprising first thermal energy supplied from the air through the top surface and second thermal energy supplied from the base through the bottom surface.Type: GrantFiled: July 21, 2011Date of Patent: November 25, 2014Assignee: WD Media, LLCInventors: Richie Y. Chan, Magenthiran Verapatran, Mohamad F. Azmi, Beehuah Ong
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Cooling tube mechanism operation in a post-manufacture glass container thermal strengthening station
Patent number: 8893528Abstract: An apparatus for manufacturing strengthened glass containers, and more particularly the construction and operation of a cooling tube mechanism in an apparatus for thermally strengthening glass containers in a glass container manufacturing line at a location intermediate the hot end and the cold end. Glass containers formed at an I. S. machine are conveyed through a special tempering Lehr that heats them uniformly to a high temperature that is short of temperatures at which they may become deformed. Subsequently, the glass containers are rapidly thermally strengthened in a cooling station in which the outer and inner surfaces including all areas of the glass containers are simultaneously cooled to a temperature below the Strain Point of the glass used in the glass containers, with the cooling tube mechanism being used to cool the inner surfaces of the glass containers.Type: GrantFiled: May 24, 2011Date of Patent: November 25, 2014Assignee: Emhart Glass S.A.Inventors: Timothy A. Ringuette, Steven J. Brown, Kenneth L. Bratton -
Patent number: 8785337Abstract: A glass container and related methods of manufacturing. The glass container has a glass composition including soda-lime base glass materials, and an oxide of vanadium for good ultraviolet light blocking properties and an oxide of selenium to decolor the glass for good clarity and decolorization. The glass composition of the glass container also may include an oxide of sulfur.Type: GrantFiled: July 8, 2011Date of Patent: July 22, 2014Assignee: Owens-Brockway Glass Container Inc.Inventors: Stephen D. Barton, Carol A. Click, Terence K. G. Howse
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Patent number: 8715785Abstract: The invention relates to: 1) a process for the mass production of hollow glass articles which, when positioned beside one another with the same orientation in one and the same plane, are liable to come into mutual contact along a surface of revolution, characterized in that after they have left the annealing lehr, they are rotated through one turn at least along the axis of said surface of revolution, this surface then being coated, by a process without any solid contact, with an additional layer which reduces the coefficient of friction; 2) a hollow glass article as obtained by this process; and 3) a packaging assembly of such articles.Type: GrantFiled: November 8, 2006Date of Patent: May 6, 2014Assignee: Saint-Gobain EmballageInventors: Eric Martin, Jean-Michel Munos, Frederic Mertz
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Patent number: 8479539Abstract: A method of making a press-moldable glass, including melting starting materials, forming a melt, and annealing a formed glass, wherein the melt has a composition such that, (1) when rapidly cooled to room temperature, it becomes glass that has a scattering coefficient of less than 0.005 cm?1 at wavelengths of from 400 to 2,500 nm or comprises crystals with a volumetric ratio of less than 10?6, and (2) when maintained for three hours at a temperature 10° C. higher than the glass transition temperature, maintained for 10 min at a temperature yielding a viscosity of 104.5 to 103.5 dPa·s, and then rapidly cooled to room temperature, (3) the resulting glass has (a) a scattering coefficient of at least one wavelength from 400 to 2,500 nm of greater than 0.01 cm?1 or (b) crystals with a volumetric ratio of greater than 10?5. A temperature for annealing is lower than for glass transition.Type: GrantFiled: December 23, 2005Date of Patent: July 9, 2013Assignee: Hoya CorporationInventors: Yoshiko Kasuga, Kazuo Tachiwana, Hiroaki Yanagita
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Publication number: 20130125587Abstract: Methods for producing crucibles for holding molten material that contain a reduced amount of gas pockets are disclosed. The methods may involve use of molten silica that may be outgassed prior to or during formation of the crucible. Crucibles produced from such methods and ingots and wafers that are produced from crucibles with a reduced amount of gas pockets are also disclosed.Type: ApplicationFiled: November 18, 2011Publication date: May 23, 2013Applicant: MEMC ELECTRONIC MATERIALS, INC.Inventors: Steven L. Kimbel, Harold W. Korb, Richard J. Phillips, Shailendra B. Rathod
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Publication number: 20130081427Abstract: A method of making a glass container comprising providing a mold defining an article having a base at a bottom of the mold cavity where the mold cavity comprises an undercut portion that defines a recess in the mold cavity; introducing molten glass to the mold; cooling the glass to cause the glass to shrink a sufficient amount that the protuberance recedes from the recess; and removing the container from the mold in a linear direction.Type: ApplicationFiled: October 4, 2011Publication date: April 4, 2013Applicant: Rubbermaid IncorporatedInventors: Vignesh Danabalan, William Pierson Hart, Michael A. Zarkis
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Patent number: 8316668Abstract: A method for manufacturing glass hard disk substrates comprises annealing and then tempering previously formed glass hard disk substrates. The annealed and tempered glass hard disk substrates have improved strength and stress resistance without chemical treatments.Type: GrantFiled: September 23, 2010Date of Patent: November 27, 2012Assignee: WD Media, Inc.Inventors: Richie Yuan Lin Chan, Magenthiran Verapatran, Mohamad Faisal Azmi, Beehuah Ong
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Patent number: 8136371Abstract: Provided are a process for producing a glass substrate usable for low-temperature p-SiTFT substrates directly in accordance with a down draw method, and the glass substrate obtained by the process. The process for producing a glass substrate includes a forming step of forming a molten glass into a ribbon shape in accordance with a down draw method, an annealing step of annealing the glass ribbon, and a cutting step of cutting the glass ribbon to give a glass substrate, in which, in the annealing step, an average cooling rate from the annealing point to the (annealing point ?50° C.) is lower than an average cooling rate from the (annealing point +100° C.) to the annealing point.Type: GrantFiled: January 29, 2009Date of Patent: March 20, 2012Assignee: Nippon Electric Glass Co., Ltd.Inventors: Yoshinari Kato, Eiji Matsuki
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Patent number: 8127569Abstract: An I.S. machine has a blow station where a parison is blown into a bottle. The parison is blown with a blow head at the “on” position on the blow mold and following the blowing of the parison, the blow head is lifted away from the blow mold. The spacing between the blow head and the mold is defined by a Pressure Profile which is responsive to the sensed pressure within the mold.Type: GrantFiled: March 7, 2011Date of Patent: March 6, 2012Assignee: Emhart Glass S.A.Inventor: Wolfgang Anheyer
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Publication number: 20090227440Abstract: This invention relates to the use of novel glass materials comprising rare earth aluminate glasses (REA1™ glasses) in the gain medium of solid state laser devices that produce light at infrared wavelengths, typically in the range 1000 to 3000 nm and for infrared optics with transmission to approximately 5000 nm in thin sections. The novel glass materials provide stable hosts for trivalent ytterbium (Yb3+) ions and other optically active species or combinations of optically active species that exhibit fluorescence and that can be optically excited by the application of light. The glass gain medium can be configured as a waveguide or placed in an external laser cavity, or otherwise arranged to achieve gain in the laser waveband and so produce laser action.Type: ApplicationFiled: April 9, 2008Publication date: September 10, 2009Inventors: J. K. WEBER, Jean Ann Tangeman, Daniel Scott Hampton, Paul C. Nordine
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Publication number: 20080011712Abstract: The invention relates to an installation and a method for producing glass stoppers which are provided with a head portion and are used for sealing wine bottles and sparkling wine bottles. Said installation comprises a mold for producing glass stoppers, a feeder system for supplying the mold with molten glass, a multistation press, and a removing and handling system for the finished glass stoppers.Type: ApplicationFiled: November 10, 2003Publication date: January 17, 2008Applicant: Boropal Technology Trading GmbHInventor: Walter Lindner
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Patent number: 6887118Abstract: A method for manufacturing a display tube includes press-forming molten glass in a mold, cooling the formed glass after it has been taken out from the mold, and reducing the temperature gradient between center and edge of the panel by reflecting heat radiation back to a central portion of the panel.Type: GrantFiled: April 17, 2002Date of Patent: May 3, 2005Assignee: Koninklijke Philips Electronics N.V.Inventors: Georgius Petrus Jozef Kuin, Hermanus Nicolaas Tuin
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Patent number: 6884137Abstract: A method for producing CRT screens includes the step of reducing the cooling rate of part of a press-formed glass screen during the cooling stage. The outside portion of the screen, i.e., the side normally facing a viewer, normally has a higher cooling rate than the inside portion of the screen, which leads to unwanted stresses in the finished product. The cooling rate of the outside portion of the screen is reduced by reflecting the heat radiating from the outside portion during the cooling process, and/or providing extra heat to the outside portion from a heater. The reduction in the cooling rate is preferably done during the transport of the glass screen from the press to the cooling oven. The method provides for systematic cooling of the inside and outside portions of the glass screen at nearly the same cooling rate.Type: GrantFiled: May 30, 2002Date of Patent: April 26, 2005Assignee: Koninklijke Philips Electronics N.V.Inventors: Gehardus Meintes Oosterhout, Hermanus Nicolaas Tuin
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Patent number: 6807825Abstract: A method for manufacturing display tube includes a first stage of press-forming molten glass put in a mold using a plunger, and a second stage of cooling the formed glass after it has been taken out from the mold. After removal of the plunger the heat radiation of the inner face portion of the central panel portion is reduced.Type: GrantFiled: April 17, 2002Date of Patent: October 26, 2004Assignee: Koninklijke Philips Electronics N.V.Inventors: Georgius Petrus Jozef Kuin, Hermanus Nicolaas Tuin, Gehardus Meintes Oosterhout
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Patent number: 6756330Abstract: A knitted fabric comprises fibers. At least part of these are metal fibers. The fabric has 90 or more stitches per square centimeter. The fabric is used as a separation cloth (12) between mould (11) and glass (14). The increased number of stitchers per square centimeter reduces the risks for markings on the glass.Type: GrantFiled: October 2, 2001Date of Patent: June 29, 2004Assignee: N.V. Bekaert S.A.Inventors: Guido Heirbaut, Wim Van Steenlandt
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Patent number: 5837026Abstract: Air is blowed before an annealing step to corner portions in an inner face portion of a glass panel which has been press-formed in a mold to cool that portions to be stronger than the other portion whereby a temperature difference between the corner portions and the other portion is reduced.Type: GrantFiled: December 8, 1997Date of Patent: November 17, 1998Assignee: Asahi Glass Company Ltd.Inventors: Tsunehiko Sugawara, Toshikazu Ikezawa, Naoya Shimizu, Hiroshi Yamasaki
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Patent number: 5527371Abstract: The problem of unevenness of bottle temperatures at the entry of slow annealing furnace due to the variation of time periods necessary for respective bottles discharged from an IS bottle manufacturing machine to reach the annealing furnace has been solved by an equalization of the time periods. For this purpose, the bottle discharging order from the IS bottle manufacturing machine is controlled and use is made of two conveyors having different running speeds and/or direction of running. As a result, a precise temperature control in the Hot-End-Coating apparatus provided upstream from the annealing furnace can be carried out owing to the equalized temperatures of bottles entering into the annealing furnace.Type: GrantFiled: October 7, 1994Date of Patent: June 18, 1996Assignee: Kirin Beer Kabushiki KaishaInventors: Manabu Nakagawa, Masatoshi Shibata
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Patent number: 5391214Abstract: The problem of unevenness of bottle temperatures at the entry of slow annealing furnace due to the variation of time periods necessary for respective bottles discharged from an IS bottle manufacturing machine to reach the annealing furnace has been solved by an equalization of said time periods. For this purpose, the bottle discharging order from the IS bottle manufacturing machine is controlled and use is made of two conveyors having different running speeds and/or direction of running. As a result, a precise temperature control in the Hot-End-Coating apparatus provided upstream from the annealing furnace can be carried out owing to the equalized temperatures of bottles entering into the annealing furnace.Type: GrantFiled: September 3, 1993Date of Patent: February 21, 1995Assignee: Kirin Beer Kabushiki KaishaInventors: Manabu Nakagawa, Masatoshi Shibata
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Patent number: 5337537Abstract: Glass bottles and other food containers or serving pieces are provided that are stronger and safer to use than present like articles, and that may easily and safely be caused to break into granules thereby reducing the bulk or volume of the used pieces. The granulation may be done at the point of consumption or use, thereby reducing storage space and bulk transportation costs. The granules are ecologically correct, innocuous as waste, and have a low litter profile.Type: GrantFiled: December 28, 1992Date of Patent: August 16, 1994Inventor: John J. Soughan
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Patent number: 5151119Abstract: A method of forming glass containers, including the steps of drying a stream of air, passing the dried air into a vacuum-insulated mixing chamber, evaporating liquid cryogen in the mixing chamber, allowing the resulting cryogen vapor to mix with the air to form a mixture at a temperature below -20.degree. C., passing the gas mixture into a vacuum-insulated manifold, and causing the gas mixture to flow from the manifold and into the insides of glass containers being formed in molds to cool the containers.Type: GrantFiled: February 28, 1991Date of Patent: September 29, 1992Assignee: The BOC Group plcInventors: Stephen Clements, Brian King
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Patent number: 4566893Abstract: A method for fabricating a glass CRT panel that exhibits high compressive surface stress and low compaction comprising thermally processing the panel during the initial annealing stage for a prescribed period of time at about those temperatures that produce minimum compaction, which processing temperatures are substantially lower than the processing temperatures that produce minimum surface stresses in the panel, and then cooling the panel to room temperature.Type: GrantFiled: October 3, 1984Date of Patent: January 28, 1986Assignee: RCA CorporationInventors: Maxwell M. Hopkins, Arthur Miller
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Patent number: 4556405Abstract: Hollow articles of glass or other materials are blown and cooled within a mold by means of an axially directed gyratory flow of pressurized air introduced tangentially into the blowing head of the mold, and which, after progressing throughout the extent of the mold is exhausted in an opposite axial direction co-axially within said gyratory flow.Type: GrantFiled: October 3, 1984Date of Patent: December 3, 1985Assignee: Vitro TEC FideicomisoInventor: Alberto A. H. Luna
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Patent number: 4553998Abstract: A method is provided for the manufacture of glass containers (10) of the type having a sidewall (12) and having a bottom (16) that is thicker than the sidewall (12). The method comprises a step in which a centered portion (44) of the bottom (16) is cooled subsequent to the molding step. Cooling the centered portion (44) is effective to develop a reverse strain in the transition portion (42a) of the sidewall (12) that is proximal to the bottom (16). This reverse strain corrects the strain that is induced by unequal cooling of a relatively thin sidewall (12) and a relatively thick bottom (16) and results in a reduction of annealing time.Type: GrantFiled: June 22, 1984Date of Patent: November 19, 1985Assignee: Ball CorporationInventor: William E. Jones
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Patent number: 4427429Abstract: The invention comprises a method for the continuous opalization of glass, wherein an opalescent agent is added to the molten glass in the forehearth situated between a glass furnace and the automatic forming machine, followed by adjustment of the glass temperature so that the opalescence takes place either before the automatic machine or at the latest, during the annealing which is carried out after the automatic machine.Type: GrantFiled: April 12, 1982Date of Patent: January 24, 1984Assignee: Riihimaen Lasi OyInventor: Antero Tiilikka
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Patent number: 4193784Abstract: Glass containers received on a machine conveyor which passes a plurality of forming machine sections and receives the ware from the sections is coordinated in its relationship to the machine sweepouts, such that a gap is provided periodically in the row of ware carried by the machine conveyor. A bottle-transfer device which transfers the ware from the machine conveyor to a cross-conveyor is operated so that it also will maintain the gap that is provided in the line of ware. The ware on the cross-conveyor moves in line across the open-receiving end of the lehr and is pushed from the cross-conveyor onto the moving lehr mat. By providing a gap in the line of ware, the lehr loader pusher bar may be operated more slowly than in the past and to thereby provide a more stable transfer of ware from the cross-conveyor to the lehr.Type: GrantFiled: October 19, 1978Date of Patent: March 18, 1980Assignee: Owens-Illinois, Inc.Inventor: Eustace H. Mumford
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Patent number: 3973942Abstract: A glass article is moulded by supplying a gob of molten glass to a mould, regulating the temperature of the mould and the time of closure of the mould so that when moulding is complete the surface viscosity of the glass is at mmost 10.sup.10.5 poises and the viscosity at the centre of the glass is at most 10.sup.8 poises, rapidly transferring the article from the mould before the surface viscosity exceeds 10.sup.10.5 poises and passing it to a cooling medium where the heat transfer is regulated to cool the article to a temperature such that its surface viscosity is at least 10.sup.12.5 poises. The moulding apparatus may open and drop the moulded article into the cooling medium or a gas jet may be provided to blow the article off a support in the open mould into the cooling medium.Type: GrantFiled: April 4, 1975Date of Patent: August 10, 1976Assignee: Pilkington Brothers LimitedInventors: Ernesto Coen, Joseph Parry, Robin Charles Steere