Patents Represented by Attorney, Agent or Law Firm Gerald L. Coon
  • 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: 7348445
    Abstract: This invention relates to organoaluminum precursor compounds represented by the formula: wherein R1, R2, R3 and R4 are the same or different and each represents hydrogen or an alkyl group having from 1 to about 3 carbon atoms, and R5 represents an alkyl group having from 1 to about 3 carbon atoms. This invention also relates to processes for producing the organoaluminum precursor compounds and a method for producing a film or coating from the organoaluminum precursor compounds.
    Type: Grant
    Filed: April 3, 2006
    Date of Patent: March 25, 2008
    Assignee: Praxair Technology, Inc.
    Inventors: David W. Peters, Derrik S. Helfer
  • Patent number: 7332618
    Abstract: This invention relates to organometallic precursor compounds represented by the formula (H)mM(R)n wherein M is a metal or metalloid, R is the same or different and is a substituted or unsubstituted, saturated or unsaturated, heterocyclic radical containing at least one nitrogen atom, m is from 0 to a value less than the oxidation state of M, n is from 1 to a value equal to the oxidation state of M, and m+n is a value equal to the oxidation state of M, a process for producing the organometallic precursor compounds, and a method for producing a film or coating from the organometallic precursor compounds.
    Type: Grant
    Filed: August 1, 2005
    Date of Patent: February 19, 2008
    Assignee: Praxair Technology, Inc.
    Inventor: Scott Houston Meiere
  • Patent number: 7265662
    Abstract: This invention relates to an integrated apparatus and method for inspection of a container adapted to hold a pressurized gas. The integrated apparatus comprises (i) an imaging device configured to obtain image data corresponding to the container and to transmit the image data to a central station, (ii) a sound detecting device configured to obtain acoustic data corresponding to the container and to transmit the acoustic data to the central station, (iii) optionally an odor detecting device configured to obtain odor data corresponding to the container contents and to transmit the odor data to the central station, (iv) wired or wireless electronic circuits in communication between each device and the central station for transmitting signals, the signals including the data, to the central station, and (v) the central station configured to receive the data transmitted by each device.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: September 4, 2007
    Assignee: Praxair Technology, Inc.
    Inventor: Paul Belanger
  • Patent number: 7244858
    Abstract: This invention relates to organometallic precursor compounds represented by the formula (L)M(L?)2(NO) wherein M is a Group 6 metal, L is a substituted or unsubstituted anionic ligand and L? is the same or different and is a ? acceptor ligand, a process for producing the organometallic precursor compounds, and a method for producing a film, coating or powder from the organometallic precursor compounds.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: July 17, 2007
    Assignee: Praxair Technology, Inc.
    Inventor: Scott Houston Meiere
  • Patent number: 7238821
    Abstract: This invention relates to a one pot method for large scale production of an organometallic compound comprising (i) reacting a hydrocarbon or heteroatom-containing material with a base material in the presence of a solvent and under reaction conditions sufficient to produce a first reaction mixture comprising a hydrocarbon or heteroatom-containing compound, (ii) adding a metal source compound to said first reaction mixture, (iii) reacting said hydrocarbon or heteroatom-containing compound with said metal source compound under reaction conditions sufficient to produce a second reaction mixture comprising said organometallic compound, and (iv) separating said organometallic compound from said second reaction mixture.
    Type: Grant
    Filed: October 6, 2003
    Date of Patent: July 3, 2007
    Assignee: Praxair Technology, Inc.
    Inventors: Scott Houston Meiere, David Walter Peters
  • Patent number: 7161109
    Abstract: This invention relates to a method for gas metal arc welding of coated steels, and a shielding gas therefor, in which the method comprises: (a) forming an arc between a consumable wire electrode and a coated steel workpiece; (b) maintaining a substantially constant arc voltage between said consumable wire electrode and the coated steel workpiece; (c) feeding the consumable wire electrode through a welding torch contact tube into said arc; (d) transferring metal from the consumable wire electrode to the coated steel workpiece; and (e) shielding the arc with a gas mixture consisting essentially of: (i) from 6 to 10 volume percent carbon dioxide; (ii) from 6 to 10 volume percent helium; and (iii) the balance argon.
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: January 9, 2007
    Assignee: Praxair Technology, Inc.
    Inventors: Jeremy B. Neff, Kevin A. Lyttle
  • Patent number: 7132623
    Abstract: A method and apparatus can adaptively control a pulsed power arc welding process. A trainable system can recognize an empirical transfer mode from a signal emitted during an arc welding pulse and determine a pulsed power parameter set to produce a modified transfer mode in a subsequent pulse, by controlling a power source using the parameter set.
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: November 7, 2006
    Assignee: Praxair Technology, Inc.
    Inventors: Helio Cordeiro De Miranda, Valtair Antonio Ferraresi, Americo Scotti
  • 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: 7098339
    Abstract: This invention relates to processes for the production of organometallic compounds represented by the formula H3Al:Ln wherein L is one or more Lewis bases capable of providing an unshared electron pair to the aluminum and n is 1 or 2, which comprise (a) forming a first solution of an alkali metal aluminum hydride and a Lewis base in an ethereal solvent, (b) adding to said first solution an aluminum halide in an ethereal solvent under reaction conditions sufficient to produce a second solution comprising said organometallic compound, and (c) separating said organometallic compound from said second solution. The organometallic compounds are useful in semiconductor applications as chemical vapor or atomic layer deposition precursors for film depositions.
    Type: Grant
    Filed: January 18, 2005
    Date of Patent: August 29, 2006
    Assignee: Praxair Technology, Inc.
    Inventors: David Walters Peters, Michael Thomas Mosscropp, III
  • Patent number: 7071438
    Abstract: The disclosed invention is a composition and process for employing a shielding gas in arc welding. The disclosed composition includes oxygen in an amount between about 0.6% and about 1.9%, helium in an amount between about 10% and about 24%, and the remainder consisting essentially of argon. The invention can be used in high-speed automated welding to result in significantly improved welding speed, joint fit-up tolerance, and burn-through minimization while maintaining excellent mechanical characteristics.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: July 4, 2006
    Assignee: Praxair Technology, Inc.
    Inventors: William de Abreu Macêdo, Joáo Vinicius de Oliveira Correia
  • Patent number: 7058108
    Abstract: The present invention is directed, in part, to a carbon dioxide laser resonator gas comprising carbon dioxide, helium, and nitrogen and having a total halocarbon concentration less than about 100 parts per trillion. In one embodiment, the total halocarbon concentration is less than about 50 parts per trillion. The laser resonator gases, laser systems, and methods of the present invention provide high efficiency and high power laser light while reducing the cost of maintenance and improving the performance of a laser system by limiting the total concentration of halocarbon.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: June 6, 2006
    Assignee: Praxair Technology, Inc.
    Inventors: Larry W. Cherne, David A. Cherne
  • Patent number: 7045172
    Abstract: This invention provides a unique gas shield or shroud surrounding the effluent of a thermal spray device that effectively can extend the working distance or standoff between the thermal spray device and the surface being coated. This invention provides a method of spraying materials, including ceramic materials and reactive materials, at a long standoff and a method of controlling the temperature of the effluent being deposited using heated gas shield.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: May 16, 2006
    Assignee: Praxair S.T. Technology, Inc.
    Inventors: Thomas A. Taylor, John E. Jackson
  • Patent number: 6985507
    Abstract: The present invention is directed, in part, to a carbon dioxide laser resonator gas comprising carbon dioxide, helium, and nitrogen and having a total halocarbon concentration less than about 100 parts per trillion. In one embodiment, the total halocarbon concentration is less than about 50 parts per trillion. The laser resonator gases, laser systems, and methods of the present invention provide high efficiency and high power laser light while reducing the cost of maintenance and improving the performance of a laser system by limiting the total concentration of halocarbon.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: January 10, 2006
    Assignee: Praxair Technology, Inc.
    Inventors: Larry W. Cherne, David A. Cherne
  • Patent number: 6982116
    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: February 18, 2000
    Date of Patent: January 3, 2006
    Assignee: Praxair S.T. Technology, Inc.
    Inventors: Richard Kent Passman, David A. McPherson
  • Patent number: 6919468
    Abstract: Asymmetric, disubstituted metallocene compounds have the general formula CpMCp? where M is a metal selected from the group consisting of Ru, Os and Fe; Cp is a first substituted cyclopentadienyl or indenyl moiety that includes at least one substituent group D1; Cp? is a second substituted cyclopentadienyl or indenyl moiety that includes at least one substituent group D1?. D1 is different from D1?.
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: July 19, 2005
    Assignee: Praxair Technology, Inc.
    Inventors: David M. Thompson, Cynthia A. Hoover
  • Patent number: 6884901
    Abstract: A method for producing Group 8 (VIII) metallocene or metallocene-like compounds employs a compound that includes a Cp? anion, such as found, together with a counterion, in a cyclopentadienide or cyclopentadienide-like salt. In one embodiment, the method includes reacting a metal salt, a (Cp) compound, such as a substituted or unsubstituted cyclopentadiene or indene, and a ligand (L) to form an intermediate compound and reacting the intermediate compound with a Cp? compound, eg., a cyclopentadienide or cyclopentadienide-like salt, where the metal salt can be is a ruthenium, an osmium or an iron halide or nitrate and L is an electron pair donor. Unsubstituted, mono-substituted as well as symmetrically or asymmetrically di- or multi-substituted metallocenes or metallocene-like compounds can be produced. In another embodiment, unsubstituted or symmetrically substituted metallocenes are formed by reacting MX2(PPh3)m with a Cp? compound, where m=3 or 4.
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: April 26, 2005
    Assignee: Praxair Technology, Inc.
    Inventors: David M. Thompson, Cynthia A. Hoover
  • Patent number: 6863995
    Abstract: A method for using a novel ternary nickel-gold-phosphorus brazing alloy for joining nickel-based components together and the assembly so formed.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: March 8, 2005
    Assignee: Praxair S.T. Technology, Inc.
    Inventor: Thomas A. Sandin
  • Patent number: RE40337
    Abstract: The present invention discloses a thermal spray apparatus with improved thermal efficiency and wear resistance in both the nozzle and barrel combustion chamber. Specifically, disclosed herein is a thermal spray apparatus for spraying substrate coatings, comprising a high velocity oxygen fuel (HVOF) gun wherein said gun includes a combustion chamber generating heated flow therefrom and a nozzle downstream from said chamber. The nozzle and/or chamber contain a first layer of material heated by the flow, and a second layer of material which contacts the first layer when said first layer is heated. The first layer has a thermal conductivity that is lower than said second layer and preferably a lower thermal expansion coefficient. In use, the contact of the first heated layer of material with the second layer operates to remove heat from the first layer therein providing automatic/self-regulating temperature control of the HVOF apparatus.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: May 27, 2008
    Assignee: Tafa, Incorporated
    Inventor: Victor Sedov