Glass Applied In Powdered Form (i.e., Frit) Patents (Class 65/33.6)
  • Publication number: 20150068249
    Abstract: This invention relates to lead free and cadmium free copper-containing glass frits that can be used as pigments to color other glass frits or to impart color to solid substrates such as glass, ceramic or metals, or to impart color to a thermoplastic mass. The compositions comprise silica, alkali metal oxides, alkaline earth metal oxides, tin oxide and copper oxide. The resulting compositions can be used to decorate and protect automotive, beverage, architectural, pharmaceutical and other glass substrates, generally imparting a red color.
    Type: Application
    Filed: November 7, 2014
    Publication date: March 12, 2015
    Applicant: FERRO CORPORATION
    Inventors: Enos A. Axtell, III, George E. Sakoske, Andreas Schulz, Juergen Hanich, Lothar Heck, Dietrich Speer, Martin Baumann
  • Patent number: 8863553
    Abstract: A glass layer 3 is disposed between a glass member 4 and a thermal conductor 7 along a region to be fused. The glass layer 3 is formed by removing an organic solvent and a binder from the paste layer while using the thermal conductor 7 as a hotplate. Then, a laser beam L1 is emitted while using the thermal conductor 7 as a heatsink, so as to melt the glass layer 3, thereby burning and fixing the glass layer 3 onto the glass member 4. Thereafter, another glass member is overlaid on the glass member 4 having the glass layer 3 burned thereonto, such that the glass layer 3 is interposed therebetween. Then, the region to be fused is irradiated therealong with a laser beam, so as to fuse the glass members together.
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: October 21, 2014
    Assignee: Hamamatsu Photonics K.K.
    Inventor: Satoshi Matsumoto
  • Patent number: 8839643
    Abstract: When fixing a glass layer 3 to a glass member 4, a region to be fused R from an irradiation initiation position A in the region to be fused R to the irradiation initiation position A is irradiated therealong with a laser beam L1, and successively an unstable region extending from the irradiation initiation position A in the region to be fused R to a stable region initiation position B is therealong irradiated with the laser beam L1 again, so as to remelt the glass layer 3 in the unstable region, turn the unstable region into a stable region, and then fix the glass layer 3 to the glass member 4. Thereafter, a laser beam L2 fuses glass members 4, 5 together through the glass layer 3 having the whole region to be fused R turned into the stable region, so as to yield a glass fusing structure 1.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: September 23, 2014
    Assignee: Hamamatsu Photonics K.K.
    Inventor: Satoshi Matsumoto
  • Patent number: 8784932
    Abstract: A glass panel is partially printed with a plurality of layers in the form of a print pattern which subdivides the panel into a plurality of discrete printed areas and/or a plurality of discrete unprinted areas, the layers being in substantially exact registration. Exact registration is achieved by the application of a plurality of superimposed layers to a sheet of glass. One layer contains-ceramic ink comprising glass frit. The glass sheet and layers are subjected to a heat treatment process which causes the glass frit to fuse to the glass and bind at least one other layer of ink within the print pattern. Ink outside the print pattern is burnt off and/or vaporised during the heat treatment process and/or removed by a subsequent finishing process, to leave the desired layers in substantially exact registration within the print pattern.
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: July 22, 2014
    Assignee: Contra Vision Limited
    Inventors: George Roland Hill, Howard Quinn
  • Publication number: 20140193643
    Abstract: A method of bonding a first substrate to a second substrate includes providing a glass, applying the glass in a layer between the first and second substrates to form an assembly, and heating the assembly to a bonding temperature above a glass transition temperature of the devitrifying glass, selected to cause the glass to bond the first substrate to the second substrate. The devitrifying glass has constituents that include various amounts of group A in a molar concentration of 70-95%, group B in a molar concentration of 5-20%, group C in a molar concentration of 1-20%, group D in a molar concentration of 0-6%; and group E in a molar concentration of 0-10%. The group A, B, C, D and E groups are disclosed herein.
    Type: Application
    Filed: January 4, 2014
    Publication date: July 10, 2014
    Applicant: LILLIPUTIAN SYSTEMS, INC.
    Inventors: Mohammad Masyood Akhtar, Samuel B. Schaevitz, Michael C. Bradford, Zachary Byars, Joseph C. Tucker
  • Patent number: 8763427
    Abstract: Certain example embodiments of this invention relate to vacuum insulating glass (VIG) units including infrared meltable glass frits, and/or methods of making the same. More particularly, certain example embodiments relate to increasing the amount of ferrous oxide in glass frits (e.g., lead-free glass frits) used to form edge seals such that the glass frits absorb an increased amount of IR energy. The techniques of certain example embodiments make it possible to expose some or all of the VIG intermediate assembly to infrared source(s), since the glass frit will heat up faster than the substrates thereby reducing the likelihood of the first and/or second substrate melting and losing heat treatment strength. In certain example embodiments, the frit's glass redox (FeO/Fe2O3) preferably is at least about 0.02 higher than either (or the higher) of the substrates' glass redox (FeO/Fe2O3), more preferably at least about 0.04 higher, and most preferably at least about 0.06 higher.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: July 1, 2014
    Assignee: Guardian Industries Corp.
    Inventor: Yei-Ping (Mimi) H. Wang
  • Patent number: 8590343
    Abstract: A method of making a vacuum insulating glass (VIG) unit. The method includes providing first and second substantially parallel spaced-apart glass substrates, a glass frit being provided at least partially between the first and second glass substrates for sealing said one or more edge portions to be sealed; and irradiating infrared energy towards the one or more edge portions to be sealed in forming an edge seal. The glass frit has a glass redox (FeO/Fe2O3) that is higher than a glass redox (FeO/Fe2O3) of the first and second substrates.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: November 26, 2013
    Assignee: Guardian Industries Corp.
    Inventor: Yei-Ping (Mimi) H. Wang
  • Patent number: 8516852
    Abstract: After a glass layer 3 is disposed between a glass member 4 and a thermal conductor 7 along a region to be fused, a laser beam L1 is emitted while the thermal conductor 7 is used as a heat sink, so as to melt the glass layer 3, thereby burning and fixing the glass layer 3 onto the glass member 4. While the glass layer 3 drastically increases its laser absorptance at the time of burning, the thermal conductor 7 serves as the heatsink and draws heat from the glass layer 3, thereby inhibiting the glass layer 3 from falling into an excessive heat input state. Thereafter, another glass member is overlaid on the glass member 4 having the glass layer 3 burned thereonto, such that the glass layer 3 is interposed therebetween. Then, the region to be fused is irradiated therealong with a laser beam, so as to fuse the glass members together.
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: August 27, 2013
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Satoshi Matsumoto, Toshimitsu Wakuda
  • Patent number: 8490430
    Abstract: When fusing glass members 104, 105 together by irradiating a glass layer 203 with a laser beam L2 along a region R to be fused, a crystallized area 108 formed in the glass layer 203 is taken as an irradiation-initiating point and an irradiation-ending point. Since the crystallized area 108 exhibits a laser absorptance lower than that of the glass layer 203 here, the glass layer 203 is gradually heated when the laser beam L2 is moved along the region R to be fused from the irradiation-initiating point, while the glass layer 203 is gradually cooled when the laser beam L2 is moved along the region R to be fused to the irradiation-ending point. This can prevent residual stresses from occurring in a part including the irradiation-initiating point and irradiation-ending point of the laser beam L2.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: July 23, 2013
    Assignee: Hamamatsu Photonics K.K.
    Inventor: Satoshi Matsumoto
  • Patent number: 8429935
    Abstract: It arranges a bonding material between a pair of base materials having different heat capacities and in which a difference between thermal expansion coefficients thereof is within 10×10?7/° C.; and bonds the pair of the base materials by the bonding material, by irradiating electromagnetic wave to the bonding material to melt and then harden it, wherein a thermal expansion coefficient at part of the bonding material facing one of the pair of the base materials of which the heat capacity is smaller is smaller than a thermal expansion coefficient at part of the bonding material facing the other of the pair of the base materials of which the heat capacity is larger by a difference within 10×10?7/° C., thereby bonding the base materials of which a difference of thermal expansion coefficients is relatively small, as preventing breakage and crack from occurring and further suppressing a degree of warp.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: April 30, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mitsutoshi Hasegawa, Mamo Matsumoto, Tomohiro Saito
  • Patent number: 8307673
    Abstract: A glass lampshade comprising a fusion body of crystal grain glass, an upper crystal glass plate, a lower crystal glass plate, and a curing gel layer. The upper crystal glass plate is attached to the lower crystal plate via the curing gel layer. The fusion body of crystal grain glass is attached to the upper crystal glass plate. A method of producing the glass lampshade.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: November 13, 2012
    Assignee: Shenzhen Tronsin Illuminating Technique Ltd.
    Inventors: Haisheng Chen, Naiqun Jiang, Chunping Zhang, Hui Liao
  • Patent number: 8309784
    Abstract: The present invention relates to a process for the manufacture of a glass frit for the containment by vitrification of a material comprising at least one oxidizable or reducible chemical species, and also to a process for the containment of said material by vitrification. The process for the manufacture of the glass frit comprises a step of incorporating into a raw glass frit at least one redox couple, the nature and the amount of which make it possible to maintain said at least one chemical species in its oxidized or reduced state. The containment process comprises mixing and hot melting the resulting glass frit and the material to be contained. The present invention makes it possible to optimize the containment of pollutants such as radionucleides, metals and metalloids. The material may be nuclear waste or a material derived from the incineration of household refuse.
    Type: Grant
    Filed: July 11, 2006
    Date of Patent: November 13, 2012
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Olivier Pinet, Thierry Blisson, Agnès Grandjean, Sophie Schuller
  • Patent number: 8147632
    Abstract: A method is described herein for controlling the oxygen level within an oven while sintering a frit to a glass plate where the sintered frit and glass plate are subsequently sealed to another glass plate to form a sealed glass package. Examples of the sealed glass package include a light-emitting device (e.g., organic light emitting diode (OLED) device), a photovoltaic device, a food container, and a medicine container.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: April 3, 2012
    Assignee: Corning Incorporated
    Inventors: Andrew Douglas Banks, Heather Debra Boek, Jason Arthur Howles
  • Publication number: 20110308279
    Abstract: Certain example embodiments of this invention relate to vacuum insulating glass (VIG) units including infrared meltable glass frits, and/or methods of making the same. More particularly, certain example embodiments relate to increasing the amount of ferrous oxide in glass frits (e.g., lead-free glass frits) used to form edge seals such that the glass frits absorb an increased amount of IR energy. The techniques of certain example embodiments make it possible to expose some or all of the VIG intermediate assembly to infrared source(s), since the glass frit will heat up faster than the substrates thereby reducing the likelihood of the first and/or second substrate melting and losing heat treatment strength. In certain example embodiments, the fries glass redox (FeO/Fe2O3) preferably is at least about 0.02 higher than either (or the higher) of the substrates' glass redox (FeO/Fe2O3), more preferably at least about 0.04 higher, and most preferably at least about 0.06 higher.
    Type: Application
    Filed: September 1, 2011
    Publication date: December 22, 2011
    Inventor: Yei-Ping (Mimi) H. Wang
  • Patent number: 8039407
    Abstract: The invention provides a method for producing a glass ceramic comprising the steps of melting a starting glass that is free from alkali, except for incidental contamination, and that contains at least one garnet-forming agent and at least one oxide of a lanthanoid; grinding the starting glass to produce a glass frit; molding by pressing and sintering the glass frit until at least one garnet phase containing lanthanoids is formed. A glass ceramic produced in this way may contain 5-50% by weight of SiO2, 5-50% by weight of Al2O3 and 10-80% by weight of at least one oxide selected from the group formed by Y2O3, Lu2O3, Sc2O3, Gd2O3, Yb2O3, Ce2O3, as well as 0.1-30% by weight of at least one oxide selected from the group formed by B2O3, Th2O3, and oxides of the lanthanoids, except Lu2O3, Gd2O3, Yb2O3, Ce2O3. Such a glass ceramic is suited especially for down conversion of excitation radiation in the blue and in the UV region of the spectrum.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: October 18, 2011
    Assignee: Schott AG
    Inventors: Karine Seneschal-Merz, Bernd Hoppe, Dirk Sprenger, Martin Letz, Thilo Zachau, Friedrich Siebers
  • Patent number: 8021739
    Abstract: A unitary structure (10) is comprised of two or more planar substrates (30, 40) fused together by a glass or glass-ceramic sintered frit structure (20) disposed therebetween. The pattern of the sintered patterned frit material defines passages (70) therein, and the sintered frit structure (20) has a characteristic minimum feature size (60) in a direction parallel to the substrates. Particles of the frit material have a poly-dispersed size distribution up to a maximum frit particle size, in a maximum length dimension, and the minimum feature size or dimension (60) of the sintered patterned frit material is greater than 2 times the maximum frit particle size, desirably about 3 times or more, and less than 6.25 times the maximum frit particle size, desirably about 5 times or less, most desirably about 4 times or less. A method for making the structure (10) is also disclosed.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: September 20, 2011
    Assignee: Corning Incorporated
    Inventor: Yann P M Nedelec
  • Patent number: 7992411
    Abstract: A method is described herein for sintering a frit to a glass plate where the sintered frit and glass plate are subsequently sealed to another glass plate to form a sealed glass package. Examples of the sealed glass package include a light-emitting device (e.g., organic light emitting diode (OLED) device), a photovoltaic device, a food container, and a medicine container.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: August 9, 2011
    Assignee: Corning Incorporated
    Inventors: Heather Debra Boek, John W Botelho, Jason Arthur Howles
  • Patent number: 7910505
    Abstract: The invention provides a method for producing a glass ceramic comprising the steps of melting a starting glass that is free from alkali, except for incidental contamination, and that contains at least one garnet-forming agent and at least one oxide of a lanthanoid; grinding the starting glass to produce a glass frit; molding by pressing and sintering the glass frit until at least one garnet phase containing lanthanoids is formed. A glass ceramic produced in this way may contain 5-50 % by weight of SiO2, 5-50 % by weight of Al2O3 and 10-80 % by weight of at least one oxide selected from the group formed by Y2O3, Lu2O3, Sc2O3, Gd2O3, Yb2O3, Ce2O3, as well as 0.1-30% by weight of at least one oxide selected from the group formed by B2O3, Th2O3, and oxides of the lanthanoids, except Lu2O3, Gd2O3, Yb2O3, Ce2O3. Such a glass ceramic is suited especially for down conversion of excitation radiation in the blue and in the UV region of the spectrum.
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: March 22, 2011
    Assignee: Schott AG
    Inventors: Karine Seneschal-Merz, Bernd Hoppe, Dirk Sprenger, Martin Letz, Thilo Zachau, Friedrich Siebers
  • Patent number: 7846857
    Abstract: The invention relates to dental glass-ceramics and a process for producing them and their use, with these comprising at least one crystal phase containing xenotime or monazite or mixtures thereof.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: December 7, 2010
    Assignee: Ivoclar Vivadent AG
    Inventors: Wolfram Höland, Christian Ritzberger, Volker Rheinberger, Elke Apel
  • Patent number: 7832233
    Abstract: The present invention provides a method of making a decorated multilayer glass structure using a single firing step that includes that use of a crystallizing glass enamel composition that contains ingredients to ensure the complete burnout of the organic portion of the composition upon firing and bending of a mated pair of glass sheets. A benefit of the composition is that when applied to one sheet of a mated pair of glass sheets, it burns out completely during firing and bending of the pair. The presence of high levels of oxidizers in the composition ensures a supply of oxygen to enable combustion of the organic vehicle while firing the glass sheets and prior to the sintering of the enamel composition to only one glass sheet in a mated pair of decorated or colored glass sheets.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: November 16, 2010
    Assignee: Ferro Corporation
    Inventors: Terry J. Brown, George E. Sakoske
  • Publication number: 20100115997
    Abstract: Glass bodies and methods of making glass bodies and more particularly glass bodies, for example, microlenses and arrays of microlenses and methods of making the same are described. Cordierite powder is vitrified to form a glass body or glass bodies for instance a microlens or microlenses.
    Type: Application
    Filed: November 13, 2008
    Publication date: May 13, 2010
    Inventors: Vitor Marino Schneider, Changyi Lai
  • Publication number: 20090297862
    Abstract: A method is described herein for sintering a frit to a glass plate where the sintered frit and glass plate are subsequently sealed to another glass plate to form a sealed glass package. Examples of the sealed glass package include a light-emitting device (e.g., organic light emitting diode (OLED) device), a photovoltaic device, a food container, and a medicine container.
    Type: Application
    Filed: May 30, 2008
    Publication date: December 3, 2009
    Inventors: Heather Debra Boek, John W. Botelho, Jason Arthur Howles
  • Patent number: 7560401
    Abstract: Frits, obscuration enamel compositions including frits and automotive windshields having obscuration enamel compositions applied thereto are described. According to one or more embodiments, the obscuration enamel composition comprises a paste component and a frit component having Bi2O3, SiO2 and B2O3 and being substantially free of Na2O. In other embodiments, a reducing agent is included in the frit component. Obscuration enamels of some embodiments have a total solids content of at least 80% by weight.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: July 14, 2009
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Robert Prunchak, Matthew Sgriccia
  • Patent number: 7559818
    Abstract: A front substrate for a plasma display panel (PDP) and an associated fabrication method are provided. An upper dielectric layer of the front substrate includes a colorant, which causes the dielectric layer to also act as a color filter. The resulting front substrate enhances at least one of color temperature, color purity, and/or contrast without increasing complexity or cost.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: July 14, 2009
    Assignee: LG Electronics Inc.
    Inventor: Sung-Wook Lee
  • Patent number: 7226508
    Abstract: A known quartz glass crucible for crystal pulling consists of a crucible wall, having an outer layer which is provided in an external area thereof with a crystallisation promoter which results in crystallisation of quartz glass, forming cristobalite when the quartz glass crucible is heated according to specified use in crystal pulling. The aim of the invention is to provide a quartz glass crucible which has a long service life. As a result, the crystallisation promoter contains, in addition to a silicon, a first component which acts as a reticulating agent in quartz glass and a second component which is free of alkali metals and which acts as an agent forming separating points in quartz glass. The above mentioned components are contained and incorporated into a doping area (8) of the outer layer (6) having a layer thickness of more than 0.2 mm.
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: June 5, 2007
    Assignees: Heraeus Quarzglas GmbH & Co. KG, Siltronic AG
    Inventors: Gabriele Korus, Martin Arndt, Hilmar Laudahn, Manfred Schwarzbauer
  • Patent number: 7220690
    Abstract: The present invention relates to a novel glass ceramic having a low or small average thermal expansion together with good polishability and processability, to the use of the glass ceramic according to the invention, and to optical components made of the glass ceramic. In particular, a glass ceramic is provided which comprises the following composition (in % by weight based on oxide): SiO2 50–70 Al2O3 17–32 P2O5 ?3–12 Li2O 2.5–5?? Na2O 0–2 K2O 0–2 MgO 0–2 CaO 0.1–4?? BaO ??0–<1 SrO 0–2 ZnO 0–4 TiO2 1.5–5?? ZrO2 ?0–2.5.
    Type: Grant
    Filed: February 7, 2005
    Date of Patent: May 22, 2007
    Assignee: Schott AG
    Inventors: Ina Mitra, Jochen Alkemper
  • Patent number: 7205037
    Abstract: Tubulation tubing of a display panel includes a flange at one end and a ring-shape adhesive member placed on a display panel to align a vent hole of the display with an opening of the tubulation tubing and the flange of the tubulation tubing is bonded to the display panel via the adhesive member.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: April 17, 2007
    Assignee: Fujitsu Hitachi Plasma Display Limited
    Inventors: Akihiro Fujimoto, Shinji Kanagu
  • Patent number: 7189668
    Abstract: This invention relates to glass-ceramic materials in the BaO—La2O3—SiO2 system, which are suitable for processing via a powder route, and which, after heat-treatment have a combination of high thermal expansion and excellent refractoriness. The precursor glass powders of the present invention have compositions on a weight percent basis of 10–55% BaO, 3–50% La2O3, 25–48% SiO2 and optionally up to 30% in total of other compatible metal oxides. The powders are substantially free from alkali metal oxides and from boron oxide such that the refractoriness of the glass-ceramic materials is not compromised. The materials may be advantageously employed at high temperatures in direct combination with other materials of high expansion or may be used to join or hermetically seal components made of other materials having similarly high expansion.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: March 13, 2007
    Assignee: Norsk Hydro ASA
    Inventor: Michael Budd
  • Patent number: 7081178
    Abstract: A method of constructing a glass panel which comprises two confronting edge sealed glass sheets, the method comprises the steps of providing a solder glass band around the margin of one surface of each glass sheet, forming, at a first temperature, an hermetic bond between the solder glass band and the associated surface of each glass sheet, positioning the glass sheets in spaced-apart confronting relationship, forming, at a second temperature which is lower than the first temperature, an hermetic seal between the two solder glass bands whilst maintaining the spaced apart relationship between the glass sheets.
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: July 25, 2006
    Assignee: The University of Sydney
    Inventor: Richard Edward Collins
  • Patent number: 6974517
    Abstract: An apparatus (10) includes a digital micromirror device (16) disposed within a housing (11) that has an opening (13) hermetically sealed by a lid (17). The lid includes a radiation transmissive window (22) with peripheral edges fixedly coupled by an annular sealing section (23) to a metal frame (21). The sealing section engages a frame surface oxidized in a wet nitrogen furnace. The sealing section melts at a temperature lower than the window or frame. The sealing section includes two center rings (151, 152) made of sealing glass that are respectively bonded to the window and frame and to each other. The sealing section also includes inner and outer rings (152, 157, 158) made of sealing glass and disposed on opposite sides of the center rings to protect the center rings from environmental factors.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: December 13, 2005
    Assignee: Raytheon Company
    Inventor: Mark B. Hanna
  • Patent number: 6921310
    Abstract: A display panel is provided that has a multilayer structure made of a colored glass layer having a desired shape and optical characteristics and a non-colored glass layer having high transparency, as well as high productivity. The display panel has a non-colored glass layer and a colored glass layer contacting the non-colored glass layer. A multilayer structure is formed that includes a colored paste layer and a non-colored paste layer. In the colored paste layer, crystallization glass powder that is crystallized at the temperature TA and coloring agent are diffused. In the non-colored paste layer, glass powder whose softening point is the temperature TB that is higher than the temperature TA. The multilayer structure is heated to the temperature TC that is higher than the temperature TB and is lower than the softening point of the crystallization glass powder after the crystallization to be burned, so that the non-colored glass layer and the colored glass layer are formed simultaneously.
    Type: Grant
    Filed: November 3, 2003
    Date of Patent: July 26, 2005
    Assignee: Fujitsu Limited
    Inventors: Noriyuki Awaji, Shinji Tadaki
  • Publication number: 20040247826
    Abstract: A method for joining glass ceramic surfaces to each other and/or other types of surfaces using a silicate liquid is disclosed. The products are suitable for use as, e.g. mirror blanks or microlithography stages, at low temperatures. Component pieces are polished then joined at low temperature using a silicate-containing joining liquid. Assembly is then performed in such a way that the joining liquid forms an interface between each component. After a period of low or slightly elevated temperature curing, rigid joints are formed throughout and the composite is dimensionally, vibrationally, and temperature stable and can withstand tensile stresses >4000 psi. The room-temperature cured composite can be heat treated using a slow, systematic temperature increase to dehydrate the joints. A sealing coating may optionally be provided to prevent excess dried joining liquid from flaking off the formed joint.
    Type: Application
    Filed: June 23, 2003
    Publication date: December 9, 2004
    Inventors: Samuel David Conzone, Alexander J Marker, Joseph S Hayden, Robert D Simpson
  • Patent number: 6808744
    Abstract: A composite crucible for pulling up monocrystalline silicon, which is superior in shape stability and suitable for a large-sized one is provided. The composite crucible is characterized in that a carbonaceous material as an outer layer and a quartz glass as an inner layer are integrally formed. Methods for preparing and regenerating a composite crucible are also disclosed.
    Type: Grant
    Filed: January 28, 2003
    Date of Patent: October 26, 2004
    Assignee: Mitsubishi Material Quartz Corporation
    Inventors: Yoshiyuki Tsuji, Masanori Fukui, Ken-ichi Hiroshima
  • Patent number: 6755049
    Abstract: Known is a method of producing a quartz glass crucible in which a crucible base body is provided at least in part with an inner layer in which the formation of cristobalite is induced by using a crystallization promoter. On the basis thereof, in order to provide an inexpensive method of producing a quartz glass crucible with reproducible characteristics for long service lives, it is suggested according to the invention that the crystallization promoter and a reducing substance are introduced into the inner layer.
    Type: Grant
    Filed: July 10, 2001
    Date of Patent: June 29, 2004
    Assignee: Heraeus Quarzglas GmbH & Co. KG
    Inventors: Gabriele Korus, Hilmar Laudahn, Martin Arndt, Udo Gertig
  • Publication number: 20040118156
    Abstract: Known is a method of producing a quartz glass crucible in which a crucible base body is provided at least in part with an inner layer in which the formation of cristobalite is induced by using a crystallization promoter. On the basis thereof, in order to provide an inexpensive method of producing a quartz glass crucible with reproducible characteristics for long service lives, it is suggested according to the invention that the crystallization promoter and a reducing substance are introduced into the inner layer.
    Type: Application
    Filed: September 5, 2003
    Publication date: June 24, 2004
    Inventors: Gabriele Korus, Hilmar Laudahn, Martin Arndt, Udo Gertig
  • Patent number: 6699807
    Abstract: A glass ceramic, for use as a resistor or a gas-tight glass ceramic solder for use in a spark plug, includes a fused seal of a starting glass fused from a starting mixture containing SiO2, Al2O3, TiO2 and CaO, the fused seal including crystalline phases in at least some areas. A method for producing such a glass ceramic provides for the starting glass to be processed in a first method step to form a starting material, which is heated for a first period of time in a second method step from a starting temperature, which is below the softening temperature of the starting glass, to a fusion temperature, which is above the softening temperature of the starting glass, and is kept at that temperature for a second period of time and finally is cooled again. A spark plug may include a terminal stud and a center electrode, which are electrically connected across a resistor that is formed in at least some areas by the glass ceramic.
    Type: Grant
    Filed: March 23, 2002
    Date of Patent: March 2, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Heinz Geier, Rudolf Pollner, Imke Koengeter, Ulrich Eisele
  • Patent number: 6551720
    Abstract: Materials for making a plasma display having a transparent front panel spaced from a back panel which is a metal core having layers of a dielectric material extending over and bonded to the core. The materials of which the back panel is made are chosen to form a back panel having a thermal coefficient of expansion compatible with that of the front panel. The dielectric material is made from a green ceramic tape which is bonded to the core and cofired with the core to form the back panel. The materials for the dielectric can be chosen such that the composite TCE of the cofired assembly matches the TCE of the front panel.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: April 22, 2003
    Assignee: Sarnoff Corporation
    Inventors: Attiganal Narayanaswamy Sreeram, Kalipada Palit, Leszek Hozer, Ellen Schwartz Tormey, Michael James Liberatore
  • Patent number: 6532769
    Abstract: The present invention is a glass-ceramic material and method of making useful for joining a solid ceramic component and at least one other solid component. The material is a blend of M1-M2-M3, wherein M1 is BaO, SrO, CaO, MgO, or combinations thereof, M2 is Al2O3, present in the blend in an amount from 2 to 15 mol %, M3 is SiO2 with up to 50 mol % B2O3 that substantially matches a coefficient of thermal expansion of the solid electrolyte. According to the present invention, a series of glass ceramics in the M1-Al2O3-M3 system can be used to join or seal both tubular and planar solid oxide fuel cells, oxygen electrolyzers, and membrane reactors for the production of syngas, commodity chemicals and other products.
    Type: Grant
    Filed: May 1, 2000
    Date of Patent: March 18, 2003
    Assignee: Battelle Memorial Institute
    Inventors: Kerry D. Meinhardt, John D. Vienna, Timothy R. Armstrong, Larry R. Pederson
  • Patent number: 6477863
    Abstract: The invention concerns a method for producing on a plasma panel faceplate, a dielectric coating comprising embossed patterns. The invention is characterized in that a vitreous coat is produced on the plasma panel faceplate; a mould bearing embossed patterns is applied on the vitreous coat, then the faceplate and the mould are heated until a creep effect of the vitreous coat is obtained which causes the latter to match the form of the mould, thereby enabling to produce simultaneously and with improved quality with respect to prior art, a dielectric coating bearing embossed patterns such as for instance barriers. The invention is particularly applicable to alternating plasma panel.
    Type: Grant
    Filed: December 7, 1999
    Date of Patent: November 12, 2002
    Assignee: Thomson Multimedia
    Inventor: Guy Baret
  • Publication number: 20020115549
    Abstract: A glass ceramic which is especially suitable as a resistor (5) or a gas-tight glass ceramic solder (9) in a spark plug (1) is described. The glass ceramic here is a fused seal of a starting glass which is fused from a starting mixture containing SiO2, Al2O3, TiO2 and CaO. The fused seal also has crystalline phases in at least some areas. In addition, a method is described for producing such a glass ceramic, the starting glass being processed in a first method step to form a starting material. This starting material is then heated for a first period of time in a second method step from a starting temperature, which is below the softening temperature (Tg) of the starting glass, to a fusion temperature, which is above the softening temperature (Tg) of the starting glass, and is kept at that temperature for a second period of time and finally is cooled again.
    Type: Application
    Filed: March 23, 2002
    Publication date: August 22, 2002
    Inventors: Heinz Geier, Rudolf Pollner, Imke Koengeter, Ulrich Eisele
  • Patent number: 6202444
    Abstract: A method of providing an encodable layer on a glass object and on the resultant product. Said layer is formed by providing a paste containing glass frit, pigment and a binder, on the hot glass. As a result, the glass frit melts, causing the pigment to adhere to the glass object. The binder, which is used to render the paste spreadable, disappears from the mixture.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: March 20, 2001
    Assignee: U.S. Philips Corporation
    Inventors: Raymond J. L. Van Kooyk, Johan Bosman