Patents Assigned to AT&T Technologies
  • Patent number: 7837843
    Abstract: 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-like 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: Grant
    Filed: June 5, 2006
    Date of Patent: November 23, 2010
    Assignee: Praxair S.T. Technology, Inc.
    Inventors: David Sharp, Albert Feuerstein, Scott Cain
  • Publication number: 20100288158
    Abstract: 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: Application
    Filed: August 2, 2010
    Publication date: November 18, 2010
    Applicant: PRAXAIR S.T. TECHNOLOGY, INC.
    Inventors: Mark F. Mosser, Kevin Eddinger, Eileen Fox, Thomas F. Lewis, III
  • Publication number: 20100267853
    Abstract: The invention provides a formulation for rendering surfaces fireproof by application thereon.
    Type: Application
    Filed: October 29, 2008
    Publication date: October 21, 2010
    Applicant: E.M.A.T. TECHNOLOGIES LTD.
    Inventors: Eyal Edry, Felix Lerner
  • Patent number: 7789953
    Abstract: 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: Grant
    Filed: March 28, 2008
    Date of Patent: September 7, 2010
    Assignee: Praxair S.T. Technology, Inc.
    Inventors: Mark F. Mosser, Kevin Eddinger, Eileen Fox, Thomas F. Lewis, III
  • Patent number: 7740723
    Abstract: A precious metal sputter target has a composition selected from the group consisting of platinum, palladium, rhodium, iridium, ruthenium, osmium and single-phase alloys thereof. The sputter target's grain structure is at least about 99 percent recrystallized and has a grain size of less than about 200 ?m for improving sputter uniformity. The cryogenic method for producing these sputter targets is also effective for improving sputter performance for silver an gold sputter targets.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: June 22, 2010
    Assignee: Praxair S.T. Technology, Inc
    Inventors: Andrew C. Perry, Paul S. Gilman, Wendell Stuber, Binu Mathew
  • Patent number: 7721939
    Abstract: 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: Grant
    Filed: July 16, 2008
    Date of Patent: May 25, 2010
    Assignee: Praxair S. T. Technology, Inc.
    Inventors: Joseph C. Facey, Ivan Ward
  • Patent number: 7718102
    Abstract: Foam for making pads and belts with controlled, reproducible microcellular structure and method of making such foam in a fast and efficient manner. Under constant pressure and temperature, a prepolymer is mixed with the nucleation surfactant in a tank in the presence of a frothing agent metered into the tank by way of a dip tube or sparge. The nitrogen gas is sheared into small bubbles and is drawn off from the headspace of the tank creating a continuous flow of nitrogen. The pressure of the tank may vary from any absolute pressure down to near complete vacuum, thereby all but eliminating the pressure requirement. The froth of the present invention has a more consistent cell structure and increased cell count.
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: May 18, 2010
    Assignee: Praxair S.T. Technology, Inc.
    Inventors: Brian Lombardo, Jeffrey P. Otto
  • Patent number: 7700677
    Abstract: The present inventions relates to a process for the preparation of a PVC homopolymer solution containing PVC in concentration greater than 5 wt %, comprising adding solid PVC to an organic solvent containing a dissolving agent selected from phthalates, adipates, phosphates, sebacates and azelates, and stirring the same until a clear solution is obtained, a process for the manufacturing of the PVC sheet, comprising applying the PVC, homopolymer solution, and a PVC film, whenever manufactured by the process of the PVC sheet. The present invention provides a process for the preparation of the PVC homopolymer solution, the transparent solution which is stable and in which no precipitation or gel formation occurs for long periods of time, the PVC dissolving solution without applying any external heat, and the PVC sheet by efficient and inexpensive method.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: April 20, 2010
    Assignee: E.M.A.T. Technologies Ltd.
    Inventors: Moshe Lipper, William Gay Hughes Games
  • Patent number: 7655601
    Abstract: A method for the enhanced melt-textured growth of superconducting crystals is disclosed for a sample having a first material capable of exhibiting superconducting properties. The sample is heated above a peritectic temperature of the first material, cooled below the peritectic temperature, and is subsequently subjected to a plurality of temperature spikes in which the sample is rapidly reheated above the peritectic temperature and recooled below the peritectic temperature to produce a superconducting crystalline structure substantially free of secondary nucleations. The resulting crystal is a superconducting crystalline structure comprising a plurality of bands formed in succession around a seed material. Each band has a non-uniform microstructure from an inner portion to an outer portion of the band.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: February 2, 2010
    Assignee: Praxair S.T. Technology, Inc.
    Inventor: Scott H. Streett
  • Publication number: 20090324846
    Abstract: Disclosed herein are compositions comprising a polyene compound and an additive selected from the group consisting of antioxidant, surfactant, oil, wax, solvent, and a combination thereof. Also disclosed herein are methods of temporarily marking a surface comprising marking the surface with a composition as disclosed herein, where the marking has a color intensity; and exposing the surface to ambient light and ambient air, whereby the color intensity of the marking decreases over a period of time. Further, disclosed herein are markers comprising a composition as disclosed herein.
    Type: Application
    Filed: June 25, 2008
    Publication date: December 31, 2009
    Applicant: B&T TECHNOLOGIES, LLC
    Inventors: John Tomaschke, George Brown
  • Patent number: 7608172
    Abstract: The method manufactures high-purity ferromagnetic sputter targets by cryogenic working the sputter target blank at a temperature below at least ?50° C. to impart at least about 5 percent strain into the sputter target blank to increase PTF uniformity of the target blank. The sputter target blank is a nonferrous metal selected from the group consisting of cobalt and nickel; and the nonferrous metal has a purity of at least about 99.99 weight percent. Finally, fabricating the sputter target blank forms a sputter target having an improved PTF uniformity arising from the cryogenic working.
    Type: Grant
    Filed: August 11, 2003
    Date of Patent: October 27, 2009
    Assignee: Praxair S.T. Technology, Inc.
    Inventors: Andrew C. Perry, Holger J. Koenigsmann, David E. Dombrowski, Thomas J. Hunt
  • Publication number: 20090012887
    Abstract: Systems and methods for servicing a user seeking a service over a computer network. In one embodiment the user visits a website of an administrative processing system which performs administrative processing for a plurality of service providers, including service provider(s) which will provide the service(s) to the user. In one embodiment, the administrative processing includes an interactive chat-like interview with the user. In one embodiment the administrative processing system is paid by the user and the payment is shared with the provider(s) who serviced the user.
    Type: Application
    Filed: March 1, 2007
    Publication date: January 8, 2009
    Applicant: T.K.T Technologies Ltd.
    Inventors: Zippora Taub, David Ron
  • Patent number: 7431195
    Abstract: 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: Grant
    Filed: September 26, 2003
    Date of Patent: October 7, 2008
    Assignee: Praxair S.T. Technology, Inc.
    Inventors: Joseph C. Facey, Ivan Ward
  • Patent number: 7419704
    Abstract: The invention is a coating and a method for applying coatings to fiber reinforced composite materials. A first polymeric layer, free of fibers and particulate, coats a fiber reinforced polymer substrate. The first layer joins the fiber reinforced polymer substrate to a second polymeric layer. The second polymeric layer contains a polymeric matrix and a particulate within the polymeric matrix. Finally, at least one thermally sprayed material coats the second polymeric layer to form an adherent multi-layer coating attached to the fiber reinforced.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: September 2, 2008
    Assignee: Praxair S. T. Technology, Inc.
    Inventors: Richard Kent Passman, David A. McPherson
  • Patent number: 7390561
    Abstract: A metal surface infused composite object made by thermal spraying a metal material onto a release agent coated pattern, followed by vacuum infusion at least a portion of the metal material layer with a resin and then separating the composite infused metal object from the pattern.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: June 24, 2008
    Assignee: Praxair S. T. Technology, Inc.
    Inventors: Grigoriy Grinberg, Matthew M. Shade
  • Patent number: 7235143
    Abstract: A precious metal sputter target has a composition selected from the group consisting of platinum, palladium, rhodium, iridium, ruthenium, osmium and single-phase alloys thereof. The sputter target's grain structure is at least about 99 percent recrystallized and has a grain size of less than about 200 ?m for improving sputter uniformity. The cryogenic method for producing these sputter targets is also effective for improving sputter performance for silver and gold sputter targets.
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: June 26, 2007
    Assignee: Praxair S.T. Technology, Inc.
    Inventors: Andrew C. Perry, Paul S. Gilman, Wendell Stuber, Binu Mathew
  • Patent number: 7220706
    Abstract: A method for the enhanced melt-textured growth of superconducting crystals is disclosed for a sample having a first material capable of exhibiting superconducting properties. The sample is heated above a peritectic temperature of the first material, cooled below the peritectic temperature, and is subsequently subjected to a plurality of temperature spikes in which the sample is rapidly reheated above the peritectic temperature and recooled below the peritectic temperature to produce a superconducting crystalline structure substantially free of secondary nucleations. The resulting crystal is a superconducting crystalline structure comprising a plurality of bands formed in succession around a seed material. Each band has a non-uniform microstructure from an inner portion to an outer portion of the band.
    Type: Grant
    Filed: May 14, 2003
    Date of Patent: May 22, 2007
    Assignee: Praxair S.T. Technology, Inc.
    Inventor: Scott H. Streett
  • Patent number: 7130187
    Abstract: This invention is directed as “a device of hard disk shock-resistance”, mainly consists of an outer frame, an inner frame, and multiple absorbers. With multiple assembly and tool holes arranged in appropriate position, the absorbers are snapped in-between the assembly holes of the outer and inner frames to create a buffer area which protects hard disk from breaking down in severe shocking environments, while it is still convenient to mount and dismount the hard disk with easy unit assembly.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: October 31, 2006
    Assignee: ET&T Technology Co., Ltd.
    Inventor: Chien-Ping Sun
  • Patent number: 7107820
    Abstract: The invention generally relates to a system and method for integrated gas delivery and leak detection to one or more applications. The system includes at least one application site, a process conduit extending from a process gas source site to the application site, a first and second process flow control at the process conduit, and a first pressure sensor. Also included in the system is a microprocessor that is in electronic communication with the flow controls and the first pressure sensor, wherein the microprocessor is programmed to respond to an application standby request by performing a pressure decay test, including closing the second process flow control and pressurizing a portion of the system by opening the first process flow control.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: September 19, 2006
    Assignee: Praxair S.T. Technology, Inc.
    Inventors: David W. Nunnally, Douglas J. Gifford
  • Patent number: 7081148
    Abstract: The sputter target includes a tantalum body having tantalum grains formed from consolidating tantalum powder and a sputter face. The sputter face has an atom transport direction for transporting tantalum atoms away from the sputter face for coating a substrate. The tantalum grains have at least a 40 percent (222) direction orientation ratio and less than a 15 percent (110) direction orientation ratio in an atom transport direction away from the sputter face for increasing sputtering uniformity, the tantalum body being free of (200)–(222) direction banding detectable by Electron Back-Scattering Diffraction and wherein the sputter target has a purity of at least 99.99 (%) percent.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: July 25, 2006
    Assignee: Praxair S.T. Technology, Inc.
    Inventors: Holger J. Koenigsmann, Paul S. Gilman