Platinum Group Metal Containing (i.e., Ruthenium (ru), Rhodium (rh), Osmium (os), Iridium (ir), Palladium (pd), Platinum (pt)) Patents (Class 65/493)
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Patent number: 11384007Abstract: A bushing for producing glass fibers, including: a base plate; and multiple nozzles from which molten glass is discharged, in which a nozzle group formed with the alignment of the multiple nozzles is joined to the base plate. A coating layer made of ceramics is formed on each of the nozzles forming at least a row of the outermost layer of the nozzle group, but the coating layer does not cover the entire nozzle, that is, the nozzle is covered so as to be in a state of no coating layer in the vicinity of the nozzle tip.Type: GrantFiled: September 6, 2019Date of Patent: July 12, 2022Assignee: TANAKA KIKINZOKU KOGYO K.K.Inventors: Tomoyuki Tada, Toshihiro Osawa, Naoya Nagao, Atsushi Nakaoka
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Patent number: 10059614Abstract: The disclosure relates to methods for forming pre-melting and/or melting glass batch materials comprising bringing glass batch materials into contact with a plasma plume for a residence time sufficient to form substantially homogeneous, spheroid-shaped glass intermediate particles. The glass batch materials may flow in a cyclonic pattern in the plasma plume for increased residence time. The glass intermediate particles may be cooled with a tangential flow of gas to produce a cyclonic flow within the collection vessel. Also disclosed herein are glass intermediate particles comprising at least about 45 wt % of alumina and/or silica and less than about 55 wt % of at least one oxide of boron, V magnesium, calcium, sodium, strontium, tin, and/or titanium, wherein the glass intermediate particles are substantially homogenous and substantially spheroid in shape and have an average particle size ranging from about 5 to about 1,000 microns.Type: GrantFiled: September 29, 2014Date of Patent: August 28, 2018Assignee: Corning IncorporatedInventors: Daniel Robert Boughton, Irene Mona Peterson
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Patent number: 9206070Abstract: The invention relates to a device delivering filaments of molten material, especially glass, by Joule heating using a power supply, comprising side plates, a bottom plate provided with nozzles for the flow of the molten material and optionally an upper screen, is characterized in that at least one of these parts capable of being in contact with the molten material is formed by: a solid part made of iron-based alloy having a melting point above 1450° C. that forms a substrate, a metal tie layer formed on at least one portion of the surface of the substrate, a ceramic layer covering the metal tie layer, the metal layer and the ceramic layer forming a diffusion barrier to the components of the alloy that forms the substrate, and a protective coating layer made of platinum or platinum alloy, deposited directly on the ceramic layer.Type: GrantFiled: October 2, 2012Date of Patent: December 8, 2015Assignee: SAINT-GOBAIN ADFORSInventors: Cyril Condolf, Achim Breuer
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Publication number: 20140260434Abstract: The invention relates to a device delivering filaments of molten material, especially glass, by Joule heating using a power supply, comprising side plates, a bottom plate provided with nozzles for the flow of the molten material and optionally an upper screen, is characterized in that at least one of these parts capable of being in contact with the molten material is formed by: a solid part made of iron-based alloy having a melting point above 1450° C. that forms a substrate, a metal tie layer formed on at least one portion of the surface of the substrate, a ceramic layer covering the metal tie layer, the metal layer and the ceramic layer forming a diffusion barrier to the components of the alloy that forms the substrate, and a protective coating layer made of platinum or platinum alloy, deposited directly on the ceramic layer.Type: ApplicationFiled: October 2, 2012Publication date: September 18, 2014Applicant: SAINT-GOBAIN ADFORSInventors: Cyril Condolf, Achim Breuer
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Patent number: 8689586Abstract: A glass-melting device for producing glass fibers capable effectively reducing inclusion of bubbles into glass fibers to be spun, and a method for producing glass fibers using the same are provided. A glass-melting device 100 for producing glass fibers comprises: a first glass-melting tank 12; a conduit 14 extending downward from the first glass-melting tank 12; a sucking device 18 for exposing the first glass-melting tank 12 to a reduced-pressure atmosphere; a second glass-melting tank 20 provided on a lower portion of the conduit 14 and exposed to an atmospheric-pressure atmosphere; and a bushing 22 provided at a bottom portion of the second glass-melting tank 20 and equipped with a number of nozzles 22a.Type: GrantFiled: March 8, 2010Date of Patent: April 8, 2014Assignee: Nitto Boseki Co., Ltd.Inventors: Norio Hirayama, Naohiro Miyanaga, Masahiko Takahashi, Kentarou Ogawa
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Patent number: 8001807Abstract: A filament forming apparatus has a bushing that includes a high palladium content screen along with structural components and non-structural components. The structural components are formed of a first material having a high creep strength and the ability to withstand corrosive effects of molten mineral materials. The non-structural components are formed of at least a second material that is different from the first material.Type: GrantFiled: March 15, 2007Date of Patent: August 23, 2011Assignee: OCV Intellectual Capital, LLCInventors: David F. Purvis, Byron L. Bemis
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Patent number: 7980099Abstract: A filament forming apparatus has a bushing that includes structural components and non-structural components. The structural components are formed of a first material having a high creep strength and the ability to withstand corrosive effects of molten mineral materials. The non-structural components are formed of at least a second material that is different from the first material.Type: GrantFiled: March 15, 2007Date of Patent: July 19, 2011Assignee: OCV Intellectual Capital, LLCInventors: Todd M. Harms, Byron M. Bemis, David F. Purvis
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Patent number: 7767606Abstract: A low viscosity E-glass composition including SiO2 in an amount ranging from 52-54 weight percent, Al2O3 in an amount ranging from 12-14 weight percent, F2 in an amount ranging from 0-1.0 weight percent, Fe2O3 in an amount ranging from 0 to 0.8 weight percent, Na2O in an amount ranging from 0-2.0 weight percent, K2O in an amount ranging from 0-2.0 weight percent, CaO in an amount ranging from 16-23 weight percent, MgO in an amount ranging from 0-3.0 weight percent, Li2O in an amount ranging from 0-3.0, TiO2 in an amount ranging from 0-1.5 weight percent, ZnO in an amount ranging from 0-4.0 weight percent, and B2O3 in an amount ranging from 8.0-10 weight percent is provided. The glass composition has a log 3 viscosity temperature between 1750 and 2150° F. and a ?T temperature greater than 50° F.Type: GrantFiled: March 15, 2007Date of Patent: August 3, 2010Assignee: OCV Intellectual Capital, LLCInventors: Peter B. McGinnis, Douglas A. Hofmann
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Patent number: 7434421Abstract: A fiberizing apparatus for converting molten material into continuous fibers has an internal support structure to minimize high temperature creep and sagging of a tip plate, the reinforcing structure forming at least about 16 internal cells and the hole pattern in a bushing screen is engineered such that the hole area in each screen area above each of the at least 16 cells controls the amount of molten material flowing into each cell to produce a substantially improved tip plate temperature profile and fiberizing efficiency.Type: GrantFiled: July 22, 2003Date of Patent: October 14, 2008Assignee: Johns ManvilleInventors: Terry Joe Hanna, Russell Donovan Arterburn, James Melvin Higginbotham, Michael D. Folk
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Publication number: 20080223082Abstract: A filament forming apparatus has a bushing that includes structural components and non-structural components. The structural components are formed of a first material having a high creep strength and the ability to withstand corrosive effects of molten mineral materials. The non-structural components are formed of at least a second material that is different from the first material.Type: ApplicationFiled: March 15, 2007Publication date: September 18, 2008Inventors: Todd M. Harms, Byron M. Bemis, David F. Purvis
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Patent number: 7194875Abstract: A bushing for fiberizing molten material, such as molten glass, having a screen mounted in the bushing spaced above the tip or orifice plate with a central portion of the screen having a significantly lower percent of hole area than the percent of hole area in end portions of the screen. This bushing improves fiberizing efficiency in channel positions of a fiberizing operation. Also, such a screen can be laid on top of a conventional screen to convert a normal bushing to a channel position bushing. Methods of using these types of bushings to improve fiberization in the channel positions and for modifying conventional bushings for other uses are also disclosed.Type: GrantFiled: April 23, 2003Date of Patent: March 27, 2007Assignee: Johns ManvilleInventor: Russell Donovan Arterburn
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Patent number: 7185517Abstract: The double crucible for a glass drawing method has a heatable outer crucible (1) and an inner crucible (2) surrounded by the outer crucible (1), which is heatable separately from the outer crucible (1). Both crucibles (1,2) have an outlet nozzle (1a, 2a) for the glass to be drawn. To make glass fibers from heavy metal oxide glass (HMO-glass) with higher quality and comparatively simple crucible features, the outlet nozzle (1a) of the outer crucible (1) extends a certain distance beyond the outlet nozzle (2a) of the inner crucible (2). Surfaces of the outlet nozzles coming in contact with the glass melt are polished and are provided on a material, which has a reducing action on heavy metal glass in the melt in all cases. These surfaces also have sufficient mechanical strength for and chemical inertness to heavy metal oxide glass.Type: GrantFiled: July 7, 2003Date of Patent: March 6, 2007Assignee: Schott AGInventors: Frank Buellesfeld, Paul Kissl, Uwe Kolberg, Volker Ohmstede
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Patent number: 6813909Abstract: A plurality of different structural members for reinforcing a plate-like structure, such as a bushing tip plate for intended use in forming fibers from a fluid material supplied to a bushing assembly, are disclosed. Each reinforcing member includes a body having a first portion for attachment to the structure and a second portion having a profile with a variable height including at least one apex. The body may be integrally formed of a single piece of material, or two or formed from more separate pieces of material bonded or secured together. The body may be T-shaped, L-shaped, or F-shaped in cross-section. The second portion of the body may have an inverted V-shaped profile, an inverted W-shaped profile, or an arcuate profile. The at least one apex may be located at the midpoint or elsewhere along the length of the body.Type: GrantFiled: June 27, 2001Date of Patent: November 9, 2004Assignee: Owens Corning Fiberglas Technology, Inc.Inventors: Byron L. Bemis, Timothy A. Sullivan, Kevin D. Smith, David H. Wolf, Jack L. Emerson, Bruno A. Purnode, James P. Tracy, William L. Streicher
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Patent number: 6739155Abstract: A crucible for melting a silica for fusion of said silica into a desired shape. The crucible having a main body with inner and outer surfaces comprised of a refractory material. In addition, at least a portion of the inner surface includes a barrier layer comprised of a material selected from rhenium, osmium, iridium, and mixtures thereof. An inlet tube to the crucible being provided to supply an oxidizing gas to a melt zone.Type: GrantFiled: August 10, 2000Date of Patent: May 25, 2004Assignee: General Electric CompanyInventors: Robert Arthur Giddings, Frederic Francis Ahlgren
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Publication number: 20040060325Abstract: The double crucible for a glass drawing method has a heatable outer crucible (1) and an inner crucible (2) surrounded by the outer crucible (1), which is heatable separately from the outer crucible (1). Both crucibles (1,2) have an outlet nozzle (1a, 2a) for the glass to be drawn. To make glass fibers from heavy metal oxide glass (HMO-glass) with higher quality and comparatively simple crucible features, the outlet nozzle (1a) of the outer crucible (1) extends a certain distance beyond the outlet nozzle (2a) of the inner crucible (2). Surfaces of the outlet nozzles coming in contact with the glass melt are polished and are provided on a material, which has a reducing action on heavy metal glass in the melt in all cases. These surfaces also have sufficient mechanical strength for and chemical inertness to heavy metal oxide glass.Type: ApplicationFiled: July 7, 2003Publication date: April 1, 2004Inventors: F. Buellesfeld, P. Kissl, U. Kolberg, Volker Ohmstede
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Publication number: 20030177793Abstract: A bushing for drawing glass fibers and its use.Type: ApplicationFiled: January 24, 2003Publication date: September 25, 2003Applicant: W. C. HERAEUS & CO. KGInventors: Wulf Kock, David Lupton, Oliver Warkentin
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Patent number: 6334337Abstract: In a glass melter, a precious metal insert is used to protect a gas bubbler from corrosion at the orifice of the bubbler through which gas is injected into the melt. The use of a precious refractory metal insert at the bubbler orifice prevents the attack of molten glass on the bubbler. The precious metal is chosen from the refractory group of metals and the platinum group of metals. Preferably the precious metal from the platinum group is platinum or one of its alloys or one of ruthenium, rhodium, palladium, osmium and iridium. The precious metal from the refractory group is preferably chromium.Type: GrantFiled: August 17, 1999Date of Patent: January 1, 2002Inventors: Pedro Buarque de Macedo, Robert K. Mohr, Hamid Hojaji, Ian L. Pegg, Marek Brandys
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Patent number: 6221506Abstract: The invention relates to a method of manufacturing a bushing baseplate, and to a bushing baseplate. The bushing baseplate is characterized in that it comprises tips (18) constituted by hollow tubular elements of outside diameter slightly smaller than the inside diameter of holes (16) in the plate (12) forming the bushing baseplate, which tips are subjected to a step of being expanded radially relative to their axes. The method is simpler and less expensive.Type: GrantFiled: January 11, 1999Date of Patent: April 24, 2001Assignee: Engelhard-CLAL S.A.S.Inventors: Jean-Paul Guerlet, Franck Pouliquen, Daniel Michel
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Patent number: 5914439Abstract: A durable, corrosion-resistant glass fiber spinner is prepared by applying as a barrier layer a uniform layer of an alloy, compatible with the material of the spinner, on the walls of the spinner bores. A layer of platinum group metal is applied over the barrier layer.Type: GrantFiled: May 8, 1997Date of Patent: June 22, 1999Assignee: Owens Corning Fiberglas Technology, Inc.Inventor: Dennis McGarry
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Patent number: 5885318Abstract: A bushing base plate comprised of a bushing base raw plate containing a circular or irregular aperture having inner surfaces and inner diameters; and a hollow tube having outer surfaces and out diameters which is inserted into the aperture and bonded thereto by thermal diffusion. Prior to insertion of the tube in the aperture, the outer diameters are greater than the inner diameters, thereby producing a pressing force between the outer surfaces of the tube and the inner surfaces of the aperture.Type: GrantFiled: March 10, 1995Date of Patent: March 23, 1999Assignee: Tanaka Kikinzoku Kogyo K.K.Inventors: Susumu Shimizu, Makoto Mitani, Katsumi Suguro, Toshio Honma
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Patent number: 5879427Abstract: A bushing assembly for forming fibers from a supply of molten fiberizable material has: (a) a bushing block having an insulating body with a bore extending therethrough and (b) an electrically conductive bushing positioned adjacent to the bushing block to receive molten fiberizable material from the bore. The bushing includes a flange having bonded to an upper surface thereof a primary layer of an electrically insulating material with a bulk density of greater than 2.0 grams per cubic centimeter. The electrically insulating material is positioned adjacent to the liner on the lower surface of the body of the bushing block and is in contact with the molten fiberizable material.Type: GrantFiled: October 16, 1997Date of Patent: March 9, 1999Assignee: PPG Industries, Inc.Inventor: Eugene J. Palamara
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Patent number: 5846284Abstract: A spinner for centrifuging mineral fibers from molten mineral material is disclosed. The spinner includes a generally annular peripheral wall, the peripheral wall having a plurality of apertures formed therethrough, and a plurality of eyelets mounted in the apertures, each eyelet having multiple orifices formed therethrough.Type: GrantFiled: July 31, 1996Date of Patent: December 8, 1998Assignee: Owens Corning Fiberglas Technology, Inc.Inventors: Jay W. Hinze, Patrick M. Gavin
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Patent number: 5749933Abstract: In a method of making fibers in which molten glass is extruded through orifices in a bushing and cooled with cooling apparatus mounted below the bushing to form the fibers, it has been discovered that using new alloys containing a major amount of palladium and a minor amount of either iridium or nickel to make the cooling members or apparatus offers many advantages. Using semi-automatic welding to attach separate parts of the cooling members or apparatus minimizes porosity in the weld and increases service life.Type: GrantFiled: March 28, 1996Date of Patent: May 12, 1998Assignee: Johns Manville International, Inc.Inventors: Sureshchandra Chintaman Ghorpade, Jack Everett Chittum, Mark Anthony Romero
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Patent number: 5385595Abstract: A durable, corrosion-resistant fiberglass spinner is prepared by applying a uniform layer of titanium nitride to the bores of the spinner by chemical vapor deposition, and applying over the layer of titanium nitride a layer of platinum by transient liquid phase deposition.Type: GrantFiled: December 23, 1993Date of Patent: January 31, 1995Assignee: Owens-Corning Fiberglas Technology Inc.Inventor: Dennis L. McGarry