Patents Assigned to AT&T Technologies
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Patent number: 8615414Abstract: An apparatus and method for optimizing insurance policies are disclosed.Type: GrantFiled: May 26, 2011Date of Patent: December 24, 2013Assignee: T.R.U.S.T. Technology Solutions LLCInventor: Frederick J. Voccola
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Patent number: 8551201Abstract: Polyurethane composition based on a certain polyether and polyester prepolymer reaction mixture, wherein the composition is utilized in manufacturing chemical mechanical polishing/planarizing (CMP) pads. The CMP pads have low rebound and can dissipate irregular energy as well as stabilize polishing to yield improved uniformity and less dishing of the substrate.Type: GrantFiled: August 7, 2009Date of Patent: October 8, 2013Assignee: Praxair S.T. Technology, Inc.Inventors: Yong Zhang, David Huang, Lu Sun
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Patent number: 8524375Abstract: This invention relates to thermally spray coated work rolls for use in metal or metal alloy, e.g., aluminum alloy, sheet manufacture comprising a cylindrical-like structure having an outer peripheral surface and a thermally sprayed coating on the outer peripheral surface of said cylindrical-like structure, said thermally sprayed coating comprising from about 65 to about 95 weight percent of one or more Group VI metal carbides, and from about 5 to about 35 weight percent of one or more transition metals selected from chromium, manganese, iron, cobalt and nickel. This invention also relates to a process for preparing the work rolls for use in metal or metal alloy, e.g., aluminum alloy, sheet manufacture, a method for manufacturing metal or metal alloy, e.g., aluminum alloy, sheet using the thermally spray coated work rolls, and a thermal spray powder for coating the outer peripheral surface of the work rolls for use in metal or metal alloy, e.g., aluminum alloy, sheet manufacture.Type: GrantFiled: April 16, 2007Date of Patent: September 3, 2013Assignee: Praxair S.T. Technology, Inc.Inventor: William John Crim Jarosinski
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Patent number: 8507105Abstract: This invention relates to rolls for use in or in contact with molten metal comprising a roll drum having an outer peripheral surface and a thermally sprayed coating on the outer peripheral surface of said roll drum, said thermally sprayed coating comprising from about 66 to about 88 weight percent of tungsten, from about 2.5 to about 6 weight percent of carbon, from about 6 to about 20 weight percent of cobalt, and from about 2 to about 9 weight percent of chromium; a process for preparing the rolls; a method for forming a metal layer on a metal sheet utilizing the rolls, e.g., galvanization; and a thermal spray powder for coating the outer peripheral surface of the rolls.Type: GrantFiled: August 3, 2006Date of Patent: August 13, 2013Assignee: Praxair S.T. Technology, Inc.Inventors: William Jarosinski, John Quets, Daming Wang, Vladimir Belov, Ardy Simon Kleyman
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Patent number: 8465602Abstract: This invention relates to thermally sprayed coatings having an amorphous-nanocrystalline-microcrystalline composition structure, said thermally sprayed coating comprising from about 1 to about 95 volume percent of an amorphous phase, from about 1 to about 80 volume percent of a nanocrystalline phase, and from about 1 to about 90 volume percent of a microcrystalline phase, and wherein said amorphous phase, nanocrystalline phase and microcrystalline phase comprise about 100 volume percent of said thermally sprayed coating. This invention also relates to methods for producing the coatings, thermal spray processes for producing the coatings, and articles coated with the coatings. The thermally sprayed coatings of this invention provide enhanced wear and corrosion resistance for articles used in severe environments (e.g., landing gears, airframes, ball valves, gate valves (gates and seats), pot rolls, and work rolls for paper processing).Type: GrantFiled: November 19, 2007Date of Patent: June 18, 2013Assignee: Praxair S. T. Technology, Inc.Inventors: Tetyana P. Shmyreva, James Knapp, Ardy Simon Kleyman
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Patent number: 8308916Abstract: This invention relates to a fixture for use in a physical vapor deposition coating operation which comprises a support structure 14 comprising a circular base member 10, a circular top member 11 opposite the circular base member 10, and a plurality of structural members 12 joining said top member 11 to said base member 10; a plurality of panel members 13 aligned in a vertical direction around the outer periphery of said support structure 14 forming a cylinder structure; said panel members 13 including a plurality of apertures for holding workpieces 19 and 35 to which a coating is to be applied; and said apertures positioned on said panel members 13 so that said workpieces 19 and 35 are aligned in a staggered vertical direction. This invention also relates to a method for simultaneously coating a plurality of workpieces 19 and 35, such as gas turbine compressor blades and vanes, with erosion resistant coatings using the fixture of this invention.Type: GrantFiled: July 9, 2010Date of Patent: November 13, 2012Assignee: Praxair S. T. Technology, Inc.Inventors: David Sharp, Albert Feuerstein, Scott Cain
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Patent number: 8283048Abstract: A thermally sprayed coating, coating system and coated article are disclosed. The disclosed embodiments of the thermally sprayed coating, coating system and coated article use a customized ceramic powder comprising ceramic powder particles having an average particle size of about 25 to about 75 microns. In particular, the ceramic powder particles contain from about 70 to about 95 percent by weight of a zirconia-based component, with the balance being an (alumina+silica)-based component and wherein said ceramic powder particles comprise micronized sub-particles of the zirconia-based component and the (alumina+silica)-based component.Type: GrantFiled: August 4, 2011Date of Patent: October 9, 2012Assignee: Praxair S. T. Technology, Inc.Inventor: Thomas Alan Taylor
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Patent number: 8197950Abstract: This invention relates to dense, vertically cracked thermal barrier coatings made from high purity yttria or ytterbia stabilized zirconia powders. The high purity yttria or ytterbia stabilized zirconia powder consisting essentially of less than about 0.01 weight percent silicon dioxide (silica), less than about 0.002 weight percent aluminum oxide (alumina), less than about 0.005 weight percent calcium oxide, less than about 0.005 weight percent ferric oxide, less than about 0 to about 0.002 weight percent magnesium oxide, less than about 0 to about 0.005 weight percent titanium dioxide, from about 1.5 to about 2 weight percent hafnium oxide (hafnia), from about 6 to about 25 weight percent yttrium oxide (yttria), less than 0.1 weight percent other impurity oxides, and the balance zirconium oxide (zirconia) and the balance zirconium oxide (zirconia).Type: GrantFiled: September 12, 2011Date of Patent: June 12, 2012Assignee: Praxair S.T. Technology, Inc.Inventors: Thomas Alan Taylor, Danny Lee Appleby, Ann Bolcavage, Albert Feuerstein, Neil Hitchman
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Patent number: 8125787Abstract: The frame assembly mainly contains a number of linear edge members and a number of L-shaped corner members end-to-end joining the edge members by a number of connection pieces into a rectangular frame surrounding a touch panel. Both the edge and corner members have a C-shaped cross section with a space inside for holding circuit boards of the touch panel. The circuit boards of the corner and edge members are aligned so that their connectivity by matching connectors is easily established when putting the frame assembly together.Type: GrantFiled: April 17, 2008Date of Patent: February 28, 2012Assignee: ET&T Technology Co., Ltd.Inventors: Jung-Yu Chen, Chien-Ping Sun, Yi-Te Chien, Wei-Lin Wang
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Patent number: 8123107Abstract: The method forms a sputter target assembly by attaching a sputter target to an insert and applying a bond metal layer between the insert and a backing plate. Then pressing the insert and backing plate together forms a solid state bond with the bond metal layer, attaches the insert to the backing plate and forms at least one cooling channel between the insert and the backing plate.Type: GrantFiled: May 25, 2004Date of Patent: February 28, 2012Assignee: Praxair S.T. Technology, Inc.Inventors: Holger J. Koenigsmann, Andrew C. Perry, Thomas J. Hunt, Paul S. Gilman
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Patent number: 8097129Abstract: This invention relates to erosion resistant coatings comprising at least 2 sublayer systems in which each sublayer system is separated from another by an interlayer, wherein (i) each sublayer system is the same or different and comprises at least 4 layers, (ii) said layers comprise alternating layers of a nitride-containing compound of stoichiometric composition and a nitride-containing compound of nonstoichiometric composition, (iii) each sublayer system has a thickness of greater than about 0.4 microns, and (iv) each interlayer is the same or different and comprises a metal-containing compound. This invention also relates to a method for producing the coatings and to articles, e.g., gas turbine compressor rotor blade and stator vanes, coated with the coatings.Type: GrantFiled: January 25, 2011Date of Patent: January 17, 2012Assignee: Praxair S.T. Technology, Inc.Inventors: Albert Feuerstein, Thomas Albert
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Patent number: 8025749Abstract: The sputter target has a composition selected from the group consisting of high-purity copper and copper-base alloys. The sputter target's grain structure is at least about 99 percent recrystallized; and the sputter target's face has a grain orientation ratio of at least about 10 percent each of (111), (200), (220) and (311). In addition, the sputter target has a grain size of less than about 10 ?m for improving sputter uniformity and reducing sputter target arcing.Type: GrantFiled: December 23, 2004Date of Patent: September 27, 2011Assignee: Praxair S. T. Technology, Inc.Inventors: Andrew C. Perry, Paul S. Gilman
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Patent number: 8017230Abstract: This invention relates to ceramic powders comprising a zirconia-based component, e.g., yttria-stabilized zirconia, and an (alumina+silica)-based component, e.g., mullite. The ceramic powders are useful for forming thermal shock resistant coatings having the same composition, through deposition by thermal spray devices. This invention also relates to thermal barrier coating systems suitable for protecting components exposed to high temperature environments, such as the thermal environment of a gas turbine engine. This invention further relates to forming free-standing solid ceramic articles.Type: GrantFiled: October 2, 2006Date of Patent: September 13, 2011Assignee: Praxair S.T. Technology, Inc.Inventor: Thomas Alan Taylor
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Patent number: 7993438Abstract: An aqueous phosphoric bonding solution consists essentially of phosphoric acid, a source of magnesium ions, and a leachable corrosion inhibitor. The bonding solution is stable with respect to inorganic metal particles, such as aluminum, which are admixed to the bonding solution for the preparation of a coating slurry. Metal parts coated with the coating compositions have very satisfactory properties such as heat and corrosion resistance.Type: GrantFiled: August 2, 2010Date of Patent: August 9, 2011Assignee: Praxair S.T. Technology, Inc.Inventors: Mark F. Mosser, Kevin Eddinger, Eileen Fox, Thomas F. Lewis, III
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Patent number: 7995042Abstract: The dimension detection system is implemented in cascaded circuit boards housed inside a frame assembly of the touch screen. After the frame assembly is assembled and powered, the dimension detection system in the circuit boards would provide horizontal and vertical feedback signals which are utilized to obtain the size of the touch screen. The size information of the touch screen could then be provided to the computer or embedded system where the touch screen is connected, preventing troublesome manual configuration. The dimension detection system and the flexible frame assembly together make the touch screen's production, storage, transportation, and usage more efficient and friendly.Type: GrantFiled: April 17, 2008Date of Patent: August 9, 2011Assignee: ET&T Technology Co., Ltd.Inventors: Jung-Yu Chen, Chien-Ping Sun, Yi-Te Chien, Wei-Lin Wang
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Patent number: 7910225Abstract: This invention relates to low thermal expansion bondcoats for thermal barrier coatings. The bondcoats comprise: (i) an inner layer comprising an inner layer alloy of MCrAlM?, and (ii) an outer layer comprising an outer layer alloy of MCrAlM?, wherein M is an element selected from nickel, cobalt, iron and mixtures thereof, and M? is an element selected from yttrium, zirconium, hafnium, ytterbium and mixtures thereof. The inner layer alloy is thermally sprayed from a powder having a mean particle size of 50 percentile point in distribution of from about 5 microns to about 50 microns. The outer layer alloy is thermally sprayed from a powder having a mean particle size of 50 percentile point in distribution of from about 30 microns to about 100 microns. The bondcoat has a thermal expansion of about 6.5 millimeters per meter or less between a temperature of from about 25° C. to about 525° C.Type: GrantFiled: February 7, 2007Date of Patent: March 22, 2011Assignee: Praxair S.T. Technology, Inc.Inventor: Thomas A. Taylor
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Patent number: 7901799Abstract: This invention relates to erosion resistant coatings comprising at least 2 sublayer systems in which each sublayer system is separated from another by an interlayer, wherein (i) each sublayer system is the same or different and comprises at least 4 layers, (ii) said layers comprise alternating layers of a nitride-containing compound of stoichiometric composition and a nitride-containing compound of nonstoichiometric composition, (iii) each sublayer system has a thickness of greater than about 0.4 microns, and (iv) each interlayer is the same or different and comprises a metal-containing compound. This invention also relates to a method for producing the coatings and to articles, e.g., gas turbine compressor rotor blade and stator vanes, coated with the coatings.Type: GrantFiled: September 13, 2007Date of Patent: March 8, 2011Assignee: Praxair S.T. Technology, Inc.Inventors: Albert Feuerstein, Thomas Albert
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Patent number: 7891537Abstract: A method for aligning the sputter target onto a backing plate having a peripheral arcuate-shaped flange on its bonding surface to provide an aligned and uniform solder bonded interface; and the sputter target/backing plate assembly so produced.Type: GrantFiled: April 6, 2010Date of Patent: February 22, 2011Assignee: Praxair S. T. Technology, Inc.Inventors: Joseph C. Facey, Ivan Ward
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Patent number: 7883784Abstract: This invention relates to coatings for a metal or non-metal substrate comprising (a) a thermal sprayed bondcoat layer applied to the substrate, and (b) a thermal sprayed ceramic layer applied to said bondcoat layer; wherein said coating has a helium leak rate of less than 6×10?6 standard cubic centimeters per second. The thermal sprayed bondcoat layer comprises (i) a thermal sprayed inner layer alloy, and (ii) a thermal sprayed outer layer alloy. The inner layer alloy is thermally sprayed from a powder having a mean particle size of 50 percentile point in distribution of from about 5 microns to about 50 microns. The outer layer alloy is thermally sprayed from a powder having a mean particle size of 50 percentile point in distribution of from about 30 microns to about 100 microns. The coatings are useful for extending the service life under severe conditions, such as those associated with metallurgical vessels' lances, nozzles and tuyeres.Type: GrantFiled: February 7, 2008Date of Patent: February 8, 2011Assignee: Praxair S. T. Technology, Inc.Inventors: Prasad Shrikrisnna Apte, James Patrick Meagher, Shawn W. Callahan
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Patent number: 7879457Abstract: This invention relates to coatings for a metal or non-metal substrate comprising (i) a thermal sprayed bondcoat layer applied to the substrate, and (ii) a thermal sprayed ceramic layer applied to the bondcoat layer; wherein said coating has a helium leak rate of less than 6×10?6 standard cubic centimeters per second. The thermal sprayed bondcoat layer comprises an alloy of MCrAlM? wherein M is an element selected from nickel, cobalt, iron and mixtures thereof, and M? is an element selected from yttrium, zirconium, hafnium, ytterbium and mixtures thereof. The alloy is thermally sprayed from a powder having a mean particle size of 50 percentile point in distribution of from about 5 microns to about 100 microns. The coatings are useful for extending the service life under severe conditions, such as those associated with metallurgical vessels' lances, nozzles and tuyeres.Type: GrantFiled: February 7, 2008Date of Patent: February 1, 2011Assignee: Praxair S. T. Technology, Inc.Inventors: Prasad Shrikrishna Apte, James Patrick Meagher, Shawn W. Callahan