Patents Represented by Attorney, Agent or Law Firm Anne B. Kiernan
  • Patent number: 8337674
    Abstract: Helium is introduced as an additive to any of the oxygen streams introduced into an ozone generator, such as a dielectric discharge (cold plasma) ozone generator, where the effluent of the generator is directed to an adsorption process for separating the ozone from the oxygen. Also disclosed is an improved PSA cycle, which is designed to reduce the amount of make-up helium and oxygen required to sustain the ozone generation and recovery process.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: December 25, 2012
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Annemarie Ott Weist, Shailesh Pradeep Gangoli, Edward Landis Weist, Jr.
  • Patent number: 8293035
    Abstract: A process for treating a workpiece having the steps of: altering the temperature of a workpiece surface wherein at least one condition selected from the group of: thermal treatment rate, relative motion between the surface and said thermal treatment rate, coolant flow rate onto said surface, heating flow rate onto said surface and the relative speed between the heating means or the cooling means and the surface is controllable; simultaneously measuring temperatures at a plurality of locations over the surface of the workpiece; determining an average temperature of the temperatures measured; comparing the average temperature to preselected minimum and maximum temperatures for the workpiece; and automatically adjusting at least one of, the controllable conditions if said average temperature is not between the preselected minimum and maximum temperatures for the workpiece. A system for performing a thermal treatment process and the resulting product are also provided.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: October 23, 2012
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Zbigniew Zurecki, Christopher Alan Ward
  • Patent number: 8268094
    Abstract: A gas injector including in which a gas is passed through high-voltage/low-current electrical discharges before being discharged into the chamber of a thermal treatment furnace. The electrical activation of the gas accelerates desirable reactions between the gas, gases in the furnace chamber, and the chamber workload. Preferably, a hot electrode is electrically charged and the other parts of the gas injector and the furnace are grounded. Also provided is a method for activating an atmosphere within the reaction chamber of a controlled-atmosphere reactor.
    Type: Grant
    Filed: May 1, 2008
    Date of Patent: September 18, 2012
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Zbigniew Zurecki, Robert Ellsworth Knorr, Jr., John Lewis Green
  • Patent number: 7862645
    Abstract: Method for argon recovery that comprises (a) providing a feed gas mixture comprising argon and nitrogen; (b) contacting at least a portion of the feed gas mixture with a nitrogen-selective adsorbent in a cyclic pressure swing adsorption process and adsorbing at least a portion of the nitrogen on the adsorbent in a first pressure range above 100 psia to provide a purified argon product and an adsorbent comprising adsorbed nitrogen; and (c) desorbing the adsorbed nitrogen in one or more regeneration steps effected in a second pressure range between atmospheric pressure and a super-atmospheric pressure below any pressure in the first pressure range, inclusive; wherein the cyclic pressure swing adsorption process is effected at an average operating temperature of at least about 0° C.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: January 4, 2011
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Roger Dean Whitley, Edward Landis Weist, Jr., Annemarie Ott Weist, Steven Ray Auvil
  • Patent number: 7833009
    Abstract: A method of combustion in a furnace comprising a firing zone and an exhaust zone, three oxidants and fuel comprising the steps of: introducing fuel into said firing zone; introducing a first oxidant into the firing zone; introducing a second oxidant into the firing zone; and introducing a third oxidant into the exhaust zone; wherein during said step of introducing a first oxidant, the step of introducing a second oxidant, and the step of introducing a third oxidant occur.
    Type: Grant
    Filed: September 1, 2005
    Date of Patent: November 16, 2010
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Mahendra Ladharam Joshi, Michael E. Habel, Kevin Alan Lievre
  • Patent number: 7819948
    Abstract: A rotary valve is disclosed having a rotor and stator that utilizes at least one compression spring to provide contact between the rotor and stator. The spring(s) is configured to oppose the pressure forces that urge the rotors and stators apart and reduce the amount of torque necessary to turn the rotors in the valve while preventing leakage from between the rotor and stator. The spring(s) may be positioned within the valve by a spring locating features.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: October 26, 2010
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Glenn Paul Wagner
  • Patent number: 7645431
    Abstract: Processes for the recovery and purification of noble gas stream contaminated with small amounts of hydrogen and/or other getter combustibles. One process involves dividing the noble gas stream gas into a first and second noble gas streams. The first noble gas stream is sent to a second metal getter containing a bed comprised of a metal getter in an oxidized state wherein the hydrogen is combusted. Oxygen is added to the second noble gas stream and the stream is passed through a catalytic unit wherein the hydrogen is combusted and then through a first metal getter bed operating in parallel with a second bed wherein the metal getter is converted to its oxide form. When breakthrough is detected in either bed, the flows of the first and second noble gas streams are rerouted to the other beds, respectively.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: January 12, 2010
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Annemarie Ott Weist, Shyam Ramchand Suchdeo, Jake Fotopoulos
  • Patent number: 7634957
    Abstract: This invention is a method and apparatus for cutting a workpiece which may have interruptions, with a cutting insert having a cutting edge, where the cutting insert is held in a tool holder and is optionally supported by a shim. Coolant, which may contain liquid nitrogen, is introduced through a passageway to a cooling passage located near the cutting edge. The cooling passage may be located either under, behind, or under and behind the cutting edge. Coolant impacts the wall surfaces of the cooling passage near the cutting edge where it is partly evaporated thereby cooling the cutting insert.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: December 22, 2009
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Ranajit Ghosh, Zbigniew Zurecki, Lance Michael Grimm
  • Patent number: 7513121
    Abstract: A method and apparatus for improving the surface finish and/or surface integrity of a workpiece formed or shaped with a tool increase the surface hardness of the workpiece during forming or shaping of the workpiece. A method and apparatus for forming or shaping a workpiece also increase the surface hardness of the workpiece during forming or shaping of the workpiece with a tool, as do a method and apparatus for manufacturing a finished part or product from a workpiece. In some embodiments, an expanding jet of cryogen may be jetted to a surface of a workpiece and a tool from a nozzle, wherein the cryogen is at least partially separated into a condensed phase portion and a vapor portion within a downstream portion of the nozzle.
    Type: Grant
    Filed: March 25, 2004
    Date of Patent: April 7, 2009
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Zbigniew Zurecki, Ranajit Ghosh, John Herbert Frey, Lance Michael Grimm
  • Patent number: 7500849
    Abstract: A method for oxy-fuel combustion, the method comprising the steps of: introducing a liquid fuel into an emulsion chamber through a liquid fuel conduit having an effective diameter, the emulsion chamber having a length that is 2 times or less than 2 times of said effective diameter of said liquid fuel conduit; introducing an atomizing gas into the emulsion chamber through at least one atomizing gas conduit; mixing the liquid fuel and the atomizing gas in said emulsion chamber to create an emulsion mixture that has a mean residence time in said emulsion chamber of from 500 to 800 ?s, the emulsion mixture having an emulsion mixture velocity less than or equal to 12 m/s; and discharging said emulsion mixture through a generally rectangular-shaped orifice into an oxygen-enriched oxidizer stream. A nozzle and burner for oxy-fuel combustion are also disclosed.
    Type: Grant
    Filed: January 18, 2005
    Date of Patent: March 10, 2009
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Roger Dudill, David Millington
  • Patent number: 7390240
    Abstract: Method of processing a workpiece comprising (a) providing a tool and a workpiece, wherein the workpiece has an initial shape; (b) placing the workpiece and the tool in contact to form an interface, applying force to the tool and/or the workpiece, and moving the tool and/or the workpiece to effect a change in the initial shape of the workpiece; (c) applying a lubricant to any area on a surface of the tool and/or to any area on a surface of the workpiece while the workpiece and the tool are in contact; and (d) applying a cryogenic fluid to any area on the surface of the tool and/or to any area on the surface of the workpiece while the workpiece and the tool are in contact.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: June 24, 2008
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Ranajit Ghosh, Zbigniew Zurecki
  • Patent number: 7381244
    Abstract: A process and an apparatus for removal of radon from indoor air. The process having the step of contacting indoor air with an adsorbent, that is a silver-exchanged zeolite. The apparatus for the removal of radon from indoor air comprises a silver exchanged zeolite.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: June 3, 2008
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Daniel Warren Tyndall, Timothy Christopher Golden, Thomas Stephen Farris, Fred William Taylor, Wayne Robert Furlan, John Joseph Rabasco
  • Patent number: 7189795
    Abstract: A poly(arylene ether) polymer includes polymer repeat units of the following structure: —(O—Ar1—O—Ar2)m—(O—Ar3—O—Ar4)n— where Ar1, Ar2, Ar3, and Ar4 are identical or different aryl radicals, m is 0.05 to 0.95, n is 1-m, and at least one of the aryl radicals is grafted to at least one hydroxyalkyl group, such as 2-undecanol. The polymer is especially useful in electrically conductive adhesives.
    Type: Grant
    Filed: July 16, 2003
    Date of Patent: March 13, 2007
    Inventors: William Franklin Burgoyne, Jr., Ching-Ping Wong, Silvia Liong
  • Patent number: 7077891
    Abstract: An adsorbent material fabricated into a reinforcement-free, self-supported coherent thin sheet and configured for use as a parallel passage contactor element in adsorption/separation applications with gases and liquids is disclosed. The adsorbent sheet material is obtained by enmeshing fine adsorbent particulates in a polymer binder. Particulates include but are not limited to carbon particles, inorganic oxides particles, or ceramic particles, or synthetic polymer resin particles. The adsorbent sheet advantageously contains a large volume percentage of active adsorbent particles.
    Type: Grant
    Filed: August 11, 2003
    Date of Patent: July 18, 2006
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Stephen Mosheim Jaffe, Cristian Ion Contescu
  • Patent number: 7054764
    Abstract: A method for determining the flow rate of a fluid, having a liquid fraction and a gas fraction, having the steps of: measuring the pressure and temperature of the fluid at a flow control device through which said cyrogenic fluid passes; inputting the measured pressure and Cv into an algorithm; and performing a single or multi-step iteration to determine a fluid mass flow rate of the fluid through the flow control device using the algorithm that relates the mass flow rate of the fluid to the Cv, and mass densities of the liquid fraction and the gas fraction of the fluid which are a function of the measured pressure, and temperature. A system is also provided.
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: May 30, 2006
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Stuart Bruce Williams, Jean-Philippe Trembley, Jeremy Paul Miller
  • Patent number: 6818919
    Abstract: A light emitting device includes: (a) a light emitting layer including an electroluminescent organic material dispersed in a matrix, wherein the matrix contains a non-electroluminescent organic polymer having a Tg of at least 170° C., and each of the organic polymer and the electroluminescent organic material constitutes at least 20 percent by weight of the light emitting layer; and (b) electrodes in electrical communication with the light emitting layer and configured to conduct an electric charge through the light emitting layer such that the light emitting layer emits light. A method for manufacturing a flexible organic light emitting device, includes providing the light emitting layer and providing electrodes above and below the light emitting layer, wherein the electrodes are in electrical communication with the light emitting layer.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: November 16, 2004
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Lloyd Mahlon Robeson, Gary L. Johnson, William Franklin Burgoyne, Jr., Xuezhong Jiang
  • Patent number: 6802889
    Abstract: Rapid cycle pressure swing adsorption processes, systems and apparatus for the separation of a multi-component feed gas mixture by selectively adsorbing at least one more readily adsorbable component in a bed of adsorbent material are provided.
    Type: Grant
    Filed: December 5, 2002
    Date of Patent: October 12, 2004
    Assignee: Air Products and Chemicals, Inc.
    Inventors: David Ross Graham, James Michael Occhialini, Pushpinder Singh Puri
  • Patent number: 6781005
    Abstract: This invention relates to an improvement in a liquid phase process for the direct fluorination of borohydride salts including the B10H10−2 and B12H12−2 salts wherein said borohydride salt is contacted with fluorine, under conditions for forming said fluorinated borohydride salt. The improvement in the liquid phase process resides in effecting the fluorination of said borohydride salt in the presence of a reaction medium having an acidity between that of water and anhydrous HF. More specifically, the reaction medium should have a Hammett acidity, Ho, between 0>Ho>−11.
    Type: Grant
    Filed: May 1, 2003
    Date of Patent: August 24, 2004
    Assignee: Air Products and Chemicals, Inc.
    Inventors: William Jack Casteel, Jr., Sergei Vladimirovich Ivanov
  • Patent number: 6609041
    Abstract: A method for tracking multiple SKUs of ophthalmic devices in a manufacturing line, comprises the steps of: assembling first molding devices, at least one of the first molding devices having an identification device, such as, a bar-code or an inductive transmitting/receiving device; reading the identification device of the first molding devices; forming first molded parts using the first molding devices; providing a plurality of carriers, the carriers having carrier indicators; transferring the first molded parts to at least one of a plurality of carriers; reading the carrier indicator of the carrier carrying the first molded parts; and storing in machine-accessible memory the information associated with the identification device of the first molding devices and the information associated with the carrier indicator of the carrier carrying the first molded parts.
    Type: Grant
    Filed: May 5, 1999
    Date of Patent: August 19, 2003
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Ravi S. Sanka, Gregory Scott Duncan, Ranganath Ramakrishnan Raja, Gary S. Hall, Daniel Tsu-Fang Wang
  • Patent number: 6592356
    Abstract: This invention provides a mold comprising a first mold half which works in conjunction with a second mold half for forming ophthalmic devices wherein said first mold half comprises at least one changeable cassette comprising inserts for forming said ophthalmic devices. The mold is particularly well-suited for use in an injection molding machine.
    Type: Grant
    Filed: May 5, 1999
    Date of Patent: July 15, 2003
    Assignee: Johnson & Johnson Vision Care, Inc.
    Inventors: Victor Lust, Philip K. Parnell, Kornelis Renkema, Jan van Lievenoogen, Will van Kraay