Gas Analysis Patents (Class 73/23.2)
  • Publication number: 20120192617
    Abstract: A method for determining a physical property of an object or fluid in a dynamic multi-path clutter environment comprises transmitting an RF interrogation signal to a wireless sensor physically coupled to the object or fluid (gas or liquid) in the dynamic multi-path clutter environment, wherein the wireless sensor is operable to receive the RF interrogation signal, produce a reference signal and a measurement signal, and retransmit the reference signal and the measurement signal in the dynamic multi-path clutter environment. The reference signal and measurement signal are delayed by the wireless sensor by an amount of time that may be a function of the unknown physical property. The method also comprises receiving the retransmitted reference signal and the retransmitted measurement signal and comparing them in the time domain in order to determine the unknown physical property of the object or fluid.
    Type: Application
    Filed: August 3, 2011
    Publication date: August 2, 2012
    Applicants: SYNTONICS, LLC, THE OHIO STATE UNIVERSITY
    Inventors: Eric K. Walton, Yakup Bayram, Orbay Tuncay, Bruce G. Montgomery, Gary W. Bruce, Douglas E. Crowe, Steven E. Gemeny
  • Publication number: 20120189937
    Abstract: A high-temperature polymer electrolyte membrane fuel cell stack has at least two high-temperature polymer electrolyte membrane fuel cells (HT-PEFC), which comprise at least one means for determining the CO2 concentration of the cathode waste gas. A method for checking this fuel cell stack is thus possible, wherein at least the CO2 concentration of the cathode waste gas is determined. Optionally, the CO2 concentration of the oxidizing agent that is supplied can also be determined. The CO2 concentration is advantageously conducted in the region of individual cells or cell sections. This can be done, for example, by way of a displaceable lance in the cathode waste gas channel or a plurality of outlets (valves) in the cathode waste gas channel. If a threshold value defining the normal state of functional individual cells is exceeded, appropriate measures can be initiated, such as switching off the entire stack and optionally replacing cells or cell blocks.
    Type: Application
    Filed: January 15, 2009
    Publication date: July 26, 2012
    Inventors: Hendrik Dohle, Hans-Friedrich Oetjen, Birgit Schumacher
  • Patent number: 8222606
    Abstract: The construct of a specially designed air sampler and its function in order to carry out the Effortless Recalibration (ERB) procedure to an Absorption Biased (AB) designed NDIR gas sensor with the use of a Calibration Master is described.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: July 17, 2012
    Assignee: Airware, Inc.
    Inventor: Jacob Y Wong
  • Patent number: 8223332
    Abstract: To provide a mercury measuring apparatus of a closed system capable of performing automatically a process ranging from collection to injection of the sample composed mainly of hydrocarbon, which is effective to accomplish a highly reliable measurement. The mercury measuring apparatus 100 includes a column 1 filled with a first adsorbent 11 and a reducing agent 13, an injecting unit 3 for injecting a sample into the column 1, a first heating unit 12, a second heating unit, a mercury collecting tube 18 filled with a second adsorbent 17, a third heating unit 19, a mercury measuring unit 2, gas flow passages FP1, FP2 and FP4, flow switching valves V1 to V3, V5 and V6 for selecting one of the gas flow passages FP1, FP2 and FP4, and a control unit 4.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: July 17, 2012
    Assignee: Nippon Instruments Corporation
    Inventors: Yasuyuki Yamada, Munehiro Hoshino
  • Publication number: 20120174650
    Abstract: The lifetime of aerosol monitoring, concentration and collection equipment is extended by acoustic cleaning of accreted particle deposits from internal surfaces where fouling occurs by application of acoustic energy to the particle accretion surface, optionally in combination with a liquid wash or sampling volume. In one application, acoustic cleaning or sampling of particle deposits for analysis is triggered by a signal indicating changes in gas flow associated with particle loading. In another application, electro-acoustic transducers may be used to prevent particle buildup without interruption of particle monitoring.
    Type: Application
    Filed: May 2, 2011
    Publication date: July 12, 2012
    Applicant: ENERTECHNIX, INC
    Inventors: Peter C. Ariessohn, Igor V. Novosselov, Evan Dengler
  • Patent number: 8210025
    Abstract: The invention relates to an arrangement and a method for measuring a protective gas (8) used in an arc-welding process by analyzing the protective gas (8) escaping from a gas nozzle (27) of a torch (10), wherein at least one sensor (31) is arranged in an external measuring device (30) for protective-gas analysis. For rapid, exact and practical determination and correspondingly effective evaluation of the protective effect of the protective gas, at least one sensor (31) is arranged in an external measuring device (30) for protective-gas analysis, which sensor (31) is positioned at a distance (38) from the torch (10) which substantially equals the distance (38) between the torch (10) and a workpiece (16) in a welding process so that the escape and effect of the protective gas (8) of an actual welding process can be simulated, and that at least one sensor (31) is connected to an evaluation unit (32) and via the latter to a welding device (1).
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: July 3, 2012
    Assignee: Fronius International GmbH
    Inventors: Erich Eglseder, Andreas Leonhartsberger
  • Patent number: 8187544
    Abstract: Various systems, devices, NO2 absorbents, NO2 scavengers and NO2 recuperator for generating nitric oxide are disclosed herein. According to one embodiment, an apparatus for converting nitrogen dioxide to nitric oxide can include a receptacle including an inlet, an outlet, a surface-active material coated with an aqueous solution of ascorbic acid and an absorbent wherein the inlet is configured to receive a gas flow and fluidly communicate the gas flow to the outlet through the surface-active material and the absorbent such that nitrogen dioxide in the gas flow is converted to nitric oxide.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: May 29, 2012
    Assignee: Geno LLC
    Inventors: David Fine, Gregory Vasquez, David P. Rounbehler
  • Publication number: 20120118039
    Abstract: A gas sensor including a detecting element; and a protector having a tube portion surrounding the detecting portion, and a bottom portion the protector having a first opening disposed at the tube portion and a second opening at the bottom portion. The bottom portion includes first and second bottom wall portions, the second bottom wall portion protrudes toward the leading end side, and at least a part of the inner face thereof is located at the leading end side with respect to the outer face of the first bottom wall portion. The second opening is provided on a side opposite the inner space of the tube portion in a communication passage formed by the inner face of the second bottom wall portion, and an opening area of the second opening is larger than an area of the largest imaginary circle that can be placed inside the first opening.
    Type: Application
    Filed: November 14, 2011
    Publication date: May 17, 2012
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Masao TSUZUKI, Takaya YOSHIKAWA
  • Patent number: 8178142
    Abstract: A method for conducting a treatment program in a preparation chamber of a food preparation appliance comprises: (a) determining at least one first value of the preparation chamber atmosphere and/or of the atmosphere surrounding the food preparation appliance before selection and/or beginning of the treatment program, (b) storing the first value, (c) determining at least one second value of the preparation chamber atmosphere and/or of the atmosphere surrounding the food preparation appliance after loading the cooking product into the preparation chamber or after introduction of a lime removal and/or cleaning agent into the preparation chamber and/or after beginning of the treatment program, (d) determining at least one third value from the first and second value, (e) comparing the third value with the stored values, and (f) conducting the treatment program as a function of the result of the comparison of the third value with stored values.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: May 15, 2012
    Assignee: Rational AG
    Inventors: Michael Greiner, Oliver Merker, Reinhard Nielsen, Stefan Rusche, Thomas Schreiner, Manfred Breunig
  • Patent number: 8173431
    Abstract: A multi-tier approach for use in a mailroom for detecting bio-threats conveyed by mail. In a first tier procedure, mail entering the mailroom is continuously automatically screened at a mail screening station to detect a potential bio-threat contamination. If a potential bio-threat is detected, an alarm signal is generated, a sample of the potential bio-threat is collected, and a second tier procedure is initiated. The second tier procedure uses a manual test, such as a nucleic acid amplification and detection assay to detect any of a plurality of different specific bio-threats in the sample. If a specific bio-threat is found, appropriate steps are taken to limit spread of the bio-threat and exposure of personnel. A third tier procedure uses a manual assay to check for a specific toxin in background samples collected over a predefined time interval at each mail screening station and in the air handling system for the mailroom.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: May 8, 2012
    Assignee: FLIR Systems, Inc.
    Inventor: Charles J. Call
  • Patent number: 8161795
    Abstract: A physical gas sensor of thermal type capable of determining the concentrations of a gas mixture even in the presence of humidity by measuring the thermal diffusivity and conductivity includes a cell with thermal conductivity whose frequency response to the gases is known, in particular in respect of humidity, delivering a signal Vm representative of the concentration of the gas. This cell is excited by a pulsed signal so that a processing can be carried out at different analysis frequencies: at low frequency and at higher frequency. The output signals from the two processing chains are combined in the circuit (60) so as to provide the levels of concentration of the gas and the concentration of the water vapour. The signals obtained may also be re-combined together with components of the signal Vm of various passbands.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: April 24, 2012
    Assignee: Neroxis SA
    Inventors: Yves De Coulon, Olivier Chetelat, Marc Brodard, Emmanuel Onillon
  • Patent number: 8163149
    Abstract: The present invention relates to a gas-monitoring assembly (100) and method for selectively determining the presence of a target gas in a gaseous environment that potentially comprises one or more interfering gases. Such gas-monitoring assembly and method specifically employ one or more gas sensors (S1) one or more getters (G1) arranged and constructed to reduce cross-interference caused by potential presence of the interfering gases in such gaseous environment to be monitored. The gas-monitoring assembly and method of the present invention are capable of monitoring a gaseous environment with respect to potential presence of multiple target gases that may interfere with one another.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: April 24, 2012
    Assignee: Honeywell International, Inc.
    Inventors: Stefan Stromereder, Peter Koller
  • Patent number: 8158065
    Abstract: By providing a tool internal sensor device in a process tool in a semiconductor facility, metal contamination may be monitored in situ, thereby avoiding or at least significantly reducing the requirement for sophisticated sample preparation techniques, such as vapor phase decomposition tests in combination with subsequent analysis procedures. Thus, a full time inspection of process tools may be accomplished.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: April 17, 2012
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Martin Trentzsch, Stephan Kronholz, Rolf Stephan
  • Patent number: 8156789
    Abstract: To provide a gas sensor chip, and a gas sensor provided therewith, capable of producing stable output characteristics over an extended period of time even when installed in a harsh environment such as a boiler smokestack carrying exhaust gasses. There is a backside structure wherein a catalyst carrier that contacts a gas to be measured is disposed on one side of a thermal conductor, a temperature sensing portion is disposed in a location that does not contact the gas to be measured, on the other side of the thermal conductor, and the temperature sensing portion measures the temperature corresponding to the temperature of the catalyst carrier through the thermal conductor, to enable the sensing of the amount of flow over an extended period of time without the temperature sensing portion being negatively affected by the gas to be measured.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: April 17, 2012
    Assignee: Yamatake Corporation
    Inventors: Tomohisa Tokuda, Shinsuke Matsunaga, Yoshiyuki Nakazaki, Kouichirou Hotta
  • Patent number: 8156786
    Abstract: The inventive method is designed to test contaminants in soil that is contaminated with petroleum related products. The method involves the use of a container that will separate soil into a head space for analysis. The container consists of two halves and the container is partially filled with a soiled dirt specimen. The container is then hermetically sealed against the environment by way of a cover snapped over the container rim. The container with the contaminated specimen therein is allowed to accumulate a vapor head space within a certain time period. An instrument will puncture a sealed orifice in the top cover and a sample of the vapor is withdrawn for further analysis.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: April 17, 2012
    Inventor: Bradley T. Nowland
  • Publication number: 20120085145
    Abstract: A network of nanowires may be used for a sensor. The nanowires are metallic, each nanowire has a thickness of at most 20 nm, and each nanowire has a width of at most 20 nm. The sensor may include nanowires comprising Pd, and the sensor may sense a change in hydrogen concentration from 0 to 100%. A device may include the hydrogen sensor, such as a vehicle, a fuel cell, a hydrogen storage tank, a facility for manufacturing steel, or a facility for refining petroleum products.
    Type: Application
    Filed: September 26, 2011
    Publication date: April 12, 2012
    Inventor: Zhili Xiao
  • Patent number: 8152900
    Abstract: A differential absorption spectrum for a reactive gas in a gas mixture can be generated for sample absorption data by subtracting background absorption data set from the sample absorption data. The background absorption data can be characteristic of absorption characteristics of the background composition in a laser light scan range that includes a target wavelength. The differential absorption spectrum can be converted to a measured concentration of the reactive gas using calibration data. A determination can be made whether the background composition has substantially changed relative to the background absorption data, and new background absorption data can be used if the background composition has substantially changed. Related systems, apparatus, methods, and/or articles are also described.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: April 10, 2012
    Assignee: SpectraSensors, Inc.
    Inventors: Xin Zhou, Xiang Liu, Alfred Feitisch, Gregory M. Sanger
  • Patent number: 8146403
    Abstract: A gas sensor includes a gas responsive pellistor and associated information specific to that pellistor. The information can include environmental compensation information, such as temperature or humidity compensation information or other manufacturing information, and is stored in a computer readable medium. Such information can be used by local circuitry in compensating the sensor while making ambient gas level determinations.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: April 3, 2012
    Assignee: Life Safety Distribution AG
    Inventors: Anthony R. Cowburn, David F. Davies, Jonathan H. Gilby
  • Patent number: 8146404
    Abstract: The exemplary embodiments provide a method, system, and device for identifying chemical species in a sample. According to one embodiment, the method, system, and device may include introducing a sample gas into a differential ion mobility device, ionizing at least a portion of the sample gas to generate at least one ion species, filtering the at least one ion species between a pair of filter electrodes, generating a detection signal in response to the at least one ion species depositing a charge on a collector electrode, and detecting a spectral peak associated with the at least one ion species.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: April 3, 2012
    Assignee: Chemring Detection Systems, Inc.
    Inventors: Matthew Todd Griffin, John Michael Alfred Petinarides, Paul Joseph Rauch, Jerome Paul Dahl, Robert Francis McAtee
  • Publication number: 20120073355
    Abstract: Active compensation designs to offset the impact of gas diffusion sources and sinks in a photosynthesis and transpiration measurement system are disclosed. A sensor head for use in a gas exchange analysis system includes an active, piezoelectric flow splitting device for splitting a flow between a sample chamber and bypass pathway. The active flow splitting device is controlled by feedback from a downstream flow meter. A continuous measurement system for rapidly and accurately surveying large numbers of samples is described.
    Type: Application
    Filed: September 22, 2011
    Publication date: March 29, 2012
    Applicant: LI-COR, Inc.
    Inventors: Mark Johnson, Robert D. Eckles, Dayle K. McDermitt
  • Patent number: 8142724
    Abstract: A hydrogen sensor mounting structure applicable to a fuel cell vehicle that includes a fuel cell system installed under a floor panel, and a hydrogen sensor located above the fuel cell system is provided. The floor panel includes a floor tunnel portion protruding into a cabin of the vehicle; the fuel cell system is located on an outer side of the floor tunnel portion; and the hydrogen sensor is mounted from an inner side of the cabin of the floor tunnel portion.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: March 27, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Akihiro Suzuki, Takashi Sasaki
  • Patent number: 8132442
    Abstract: A stack of substantially parallel ceramic plates (22) separated and interconnected by ceramic spacers (26, 27) forming a seal structure (20) with a length (L), a width (W), and a thickness (T). The spacers are narrower in width than the plates, and may be laterally offset from spacers in adjacent rows to form a space (28) in a row that aligns with a spacer in another adjacent row. An adjacent plate bends into the space when the seal structure is compressed in thickness. The spacers may have gaps (60, 62) forming a stepped or labyrinthine cooling flow path (66) within the seal structure. The spacers of each row may vary in lateral separation, thus providing a range of compressibility that varies along the width of the seal structure.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: March 13, 2012
    Assignee: Siemens Energy, Inc.
    Inventors: Gary B. Merrill, Jay A. Morrison
  • Patent number: 8128869
    Abstract: An air sanitization system including a reactive oxygen species generator, a variable speed fan, a pathogen sensor and a controller. The reactive oxygen species generator generates reactive oxygen species from an oxygen-containing gas and discharges the reactive oxygen species to a conditioned space. The variable speed fan directs the oxygen-containing gas to the reactive oxygen species generator at a controlled speed. The pathogen sensor senses a level of airborne pathogens in the conditioned space and generates a signal indicative of the level of pathogens sensed. The controller receives the signal from the pathogen sensor and varies the speed of the variable speed fan in response to the signal to decrease a speed of the variable speed fan in response to an increase in the level of airborne pathogens sensed by the pathogen sensor.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: March 6, 2012
    Assignee: Hussmann Corporation
    Inventor: Ted Wayne Sunderland
  • Patent number: 8127593
    Abstract: A method for detecting a fungal contamination of an indoor environment by calculation of a chemical index of the fungal contamination. A sample of volatile organic compounds (VOCs) is withdrawn in indoor surroundings, and the presence or absence of certain predetermined VOCs resulting from fungal metabolism is detected.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: March 6, 2012
    Assignee: Centre Scientifique et Technique du Batiment (CSTB)
    Inventor: Stephane Moularat
  • Patent number: 8124414
    Abstract: A taggant comprising at least one perfluorocarbon compound surrounded by a polyphosphazene compound. The polyphosphazene compound has the chemical structure: wherein G1 and G2 are pendant groups having different polarities, m is an integer greater than or equal to 100, and each of A and B is independently selected from hydrogen, an alkyl, an alkene, an alkoxide, a polyether, a polythioether, a siloxane, and —X(CH2)nY1(CH2)p1Y2(CH2)p2 . . . Yi(CH2)piCH3, where n ranges from 1 to 6, X and Y are independently selected from oxygen, sulfur, selenium, tellurium, and polonium, and p1 through pi range from 1 to 6. Cyclic polyphosphazene compounds lacking the A and B groups are also disclosed, as are methods of forming the taggant and of detecting an object.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: February 28, 2012
    Assignee: Battelle Energy Alliance, LLC
    Inventors: Mason K. Harrup, Frederick F. Stewart, Mark L. Stone
  • Patent number: 8124422
    Abstract: An apparatus or method for removing water and concentrating an analyte in solution, wherein the concentrated analyte sample is delivered directly to a vial, such as an autosampler vial that is capable of use in a gas chromatography autosampler.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: February 28, 2012
    Assignee: Horizon Technology, Inc.
    Inventors: Robert S. Johnson, Stephen Scheufele
  • Publication number: 20120046792
    Abstract: An apparatus, system, and methods for measuring environmental parameters are disclosed. The apparatus, system, and methods can be used for a variety of applications, including HVAC air balancing and building commissioning. The system includes a variety of wireless sensing modules and wearable modules for control, display, and storage. Parameters measured include air and water temperature, pressure, velocity, and flow. Also included are sensors for light intensity, CO concentrations, and CO2 concentrations.
    Type: Application
    Filed: August 11, 2011
    Publication date: February 23, 2012
    Inventor: Russell P. Secor
  • Patent number: 8119413
    Abstract: A method for solid material detection in a medium includes receiving an exhaust gas downstream with respect to a workpiece from which a photoresist material is removed. An electromagnetic circuit is configured to include the exhaust gas, the exhaust gas is excited with electromagnetic energy and an impedance value of the electromagnetic circuit is determined, wherein the impedance value corresponds to an amount of solid material within the exhaust gas.
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: February 21, 2012
    Assignee: Axcelis Technologies, Inc.
    Inventors: Richard E. Pingree, Jr., Palanikumara Sakthivel, Mahesh Vanodia, Michael B. Colson
  • Patent number: 8117894
    Abstract: A sensor system issues measurement commands at a predetermined regular rate. If a measurement indicates that a gas of interest is present, then the sensor system is signaled to wake-up thereby pulsing a heater for the sensor element that improves the accuracy of measurements. Measurements of humidity, temperature and gas concentration are made. If the gas of interest is detected then the data is used to indicate a compensated gas measurement. The gas level is classified as to its hazard and an adaptive detection algorithm is used to set an activity mode. If the gas of interest is not detected, the adaptive detection algorithm is used to set a sleep mode that saves power. Measurement rates are kept constant while heater power is controlled to reduce power consumption. Measurement rates are changed to increase concentration sensitivity.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: February 21, 2012
    Assignee: Applied Nanotech Holdings, Inc.
    Inventors: Joel Abdullah, Alexei Tikhonski, Ronald I. Dass, James Novak
  • Patent number: 8113034
    Abstract: An apparatus includes a gas sensor configured to detect a specific gas which is a subject for detection, and inspection gas introduction piping configured to lead an inspection gas to the gas sensor, wherein at least a portion of the inspection gas introduction piping serves as ventilating piping configured to ventilate an inside of a ventilation-requiring device.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: February 14, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Akihiro Suzuki, Takashi Sasaki, Hideharu Naito, Kotaro Shigeno
  • Patent number: 8114509
    Abstract: A gas permeable membrane for the optical measurement of the partial pressure and/or the concentration of a gas species, the membrane comprises a porous light-transmissible membrane matrix containing a metal oxide, wherein the membrane matrix is at least partially charged with at least one gas-selective compound whose optical characteristics change upon an interaction with a corresponding gas species.
    Type: Grant
    Filed: May 10, 2006
    Date of Patent: February 14, 2012
    Assignees: Eidgenossische Technische Hochschule Zurich, Universidad De Granada
    Inventors: Ursula Spichiger-Keller, Stephan Spichiger, Jorge Fernando Fernandez-Sanchez
  • Patent number: 8117009
    Abstract: Disclosed is a data recorder for munitions. The data recorder includes a power source, a processor, and an acceleration sensor. The data recorder further includes a trigger validation feature which is operably coupled to the data recorder to verify the occurrence of a secondary environmental/input event. This envisioned data recorder can contain a digital or analog device as a primary or secondary trigger. Data from an accelerometer is stored in FRAM memory.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: February 14, 2012
    Assignee: L-3 Communications
    Inventors: Marc Worthington, Noah Desch, David Lawson, Scott Colegrove
  • Publication number: 20120034410
    Abstract: Multiple walled nested coaxial nanostructures, methods for making multiple walled nested coaxial nanostructures, and devices incorporating the coaxial nanostructures are disclosed. The coaxial nanostructures include an inner nanostructure, a first outer nanotube disposed around the inner nanostructure, and a first annular channel between the inner nanostructure and the first outer nanotube. The coaxial nanostructures have extremely high aspect ratios, ranging from about 5 to about 1,200, or about 300 to about 1200.
    Type: Application
    Filed: April 23, 2010
    Publication date: February 9, 2012
    Applicant: OLD DOMINION UNIVERSITY RESEARCH FOUNDATION
    Inventors: Helmut Baumgart, Gon Namkoong, Diefeng Gu, Tarek Abdel-Fattah
  • Patent number: 8109130
    Abstract: A gas detector and process for detecting a fluorine-containing species in a gas containing same, e.g., an effluent of a semiconductor processing tool undergoing etch cleaning with HF, NF3, etc. The detector in a preferred structural arrangement employs a microelectromechanical system (MEMS)-based device structure and/or a free-standing metal element that functions as a sensing component and optionally as a heat source when elevated temperature sensing is required. The free-standing metal element can be fabricated directly onto a standard chip carrier/device package so that the package becomes a platform of the detector.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: February 7, 2012
    Assignee: Advanced Technology Materials, Inc.
    Inventors: Frank Dimeo, Jr., Philip S. H. Chen, Jeffrey W. Neuner, James Welch, Michele Stawasz, Thomas H. Baum, Mackenzie E. King, Ing-Shin Chen, Jeffrey F. Roeder
  • Publication number: 20120006091
    Abstract: A heating system can include certain pressure sensitive features. These features can be configured to change from a first position to a second position based on a pressure of a fuel flowing into the feature. These features can include, fuel selector valves, pressure regulators, burner nozzles, and oxygen depletion sensor nozzles, among other features.
    Type: Application
    Filed: June 7, 2011
    Publication date: January 12, 2012
    Inventor: David Deng
  • Publication number: 20110302991
    Abstract: A gas sensor includes a substrate having a low thermal conductivity. Localized heating can be produced using a serpentined heater carried by the substrate. The low thermal conductivity of the substrate substantially confines the generated heat to a region local to the heater thereby reducing required power to operate the sensor. Multiple sensing elements can be deposited onto the substrate adjacent to respective heaters and relatively close together because of the thermal isolation provided by the substrate. In one embodiment, the sensor can include the ceramic substrate, the heater, catalytic material overlying the heater with a gas impermeable layer overlying, at least in part the catalytic material.
    Type: Application
    Filed: August 22, 2011
    Publication date: December 15, 2011
    Applicant: Life Safety Distribution AG
    Inventor: Keith F.E. Pratt
  • Patent number: 8078323
    Abstract: Method for controlling the process of separating mixtures containing several substances having close boiling points and with a known concentration, in a distillation column, wherein the concentration of at least one component is measured at a midpoint of the column, and said measurement, together with other parameters, is used to control the process.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: December 13, 2011
    Assignee: Bayer AG
    Inventors: Frank Meeuwssen, Franz Ferdinand Rhiel, Torsten Hauschild, Martin Gerlach
  • Patent number: 8075842
    Abstract: A purge and trap concentrator system that includes a sparge vessel, and includes a variable gas flow valve for controlling the gas pressure in an analytic trap or the sparge vessel; a sensor that detects both a foaming sample state and a high liquid level in the sparge vessel, using one optical sensor; a control scheme that re-directs the purge gases to a second inlet of the sparge vessel during a foaming condition; a control scheme that uses a split flow to enhance the quantity of sample gases passed from an analytic trap; an electrically powered thermal energy source with a fan raising the sparge vessel temperature via thermal convection.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: December 13, 2011
    Assignee: EST Analytical, Inc.
    Inventors: Douglas A. Meece, Richard C. Kirkland
  • Patent number: 8071389
    Abstract: The invention relates to a method of controlling a hydrogenation of a starting material in a hydrogenation reactor, in which the amount of hydrogen reacted in the hydrogenation is firstly determined, the ratio of the amount of hydrogen reacted to the amount of starting material fed in is then derived, this ratio is compared with a prescribed value and, finally, at least one process parameter is altered if the ratio of the amount of hydrogen reacted to the amount of starting material fed in deviates by a prescribed amount from the prescribed value.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: December 6, 2011
    Assignee: BASF Aktiengesellschaft
    Inventors: Alexander Weck, Markus Rösch, Gunther Windecker, Gunnar Heydrich, Rolf Pinkos, Olga Schubert, Klaus Harth
  • Patent number: 8071938
    Abstract: Systems, methods and computer program products for the multi-modal detection of particles are described herein. An embodiment of the present invention is a particle detector that includes a first chamber wherein analyte particles are subjected to a first particle detection mechanism, and a second chamber coupled to the first chamber, wherein the analyte particles are subjected to a second particle detection mechanism, and wherein the detection characteristics of second particle detection mechanism are orthogonal to detection characteristics of the first particle detection mechanism.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: December 6, 2011
    Assignee: The Mitre Corporation
    Inventor: Samar K. Guharay
  • Patent number: 8070355
    Abstract: Disclosed are a method of detecting a leak of fluoroolefin compositions and sensors used therefor. In particular, the method is particularly useful for detecting a leak of a fluoroolefin refrigerant composition from a cooling system of an automotive vehicle. Such fluoroolefin refrigerant compositions have double bond structures which make them particularly well suited with sensing technologies, including: infrared sensors, UV sensors, NIR sensors, ion mobility or plasma chromatographs, gas chromatography, refractometry, mass spectroscopy, high temperature thick film sensors, thin film field effect sensors, pellistor sensors, Taguchi sensors and quartz microbalance sensors.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: December 6, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Barbara Haviland Minor, Nandini C. Mouli, Daniel B. Laubacher, John Carl Steichen
  • Patent number: 8065904
    Abstract: We describe the use of coordination polymers (CP) as coatings on microcantilevers for the detection of chemical analytes. CP exhibit changes in unit cell parameters upon adsorption of analytes, which will induce a stress in a static microcantilever upon which a CP layer is deposited. We also describe fabrication methods for depositing CP layers on surfaces.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: November 29, 2011
    Assignee: Sandia Corporation
    Inventors: Mark D. Allendorf, Peter J. Hesketh
  • Publication number: 20110283769
    Abstract: In the leak detection method, it is provided that a specimen (24) filled with a test gas is positioned in front of a suction opening (11). The suctioned air brushes along the surface of said specimen and takes up test gas in the case of a leak. Said test gas is recognized by a test gas detector (17,17a). According to the invention, full mobility of said specimen (24) is ensured during the testing process such that a test can also be carried out while said specimens are moving past said suction opening.
    Type: Application
    Filed: December 15, 2009
    Publication date: November 24, 2011
    Applicant: INFICON GMBH
    Inventors: Martin Bohn, Norbert Rolff, Jochen Puchalla, Michael Dauenhauer
  • Patent number: 8062905
    Abstract: A purge and trap concentrator system that includes a sparge vessel, and includes a variable gas flow valve for controlling the gas pressure in an analytic trap or the sparge vessel; a sensor that detects both a foaming sample state and a high liquid level in the sparge vessel, using one optical sensor; a control scheme that re-directs the purge gases to a second inlet of the sparge vessel during a foaming condition; a control scheme that uses a split flow to enhance the quantity of sample gases passed from an analytic trap; an electrically powered thermal energy source with a fan raising the sparge vessel temperature via thermal convection.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: November 22, 2011
    Assignee: EST Analytical, Inc.
    Inventor: Douglas A. Meece
  • Patent number: 8058070
    Abstract: Disclosed are a method of determining the components of a fluoroolefin composition, a method of recharging a fluid system in which the composition is used, and sensors used therefor. In particular, the composition may be a fluoroolefin refrigerant composition used within a vapor compression system, where the refrigerant composition is useful in cooling systems as replacements for existing refrigerants with higher global warming potential. Such fluoroolefin refrigerant compositions have double bond structures which make them particularly well suited with sensing technologies, including: infrared sensors, UV/vis sensors, NIR sensors, ion mobility or plasma chromatographs, gas chromatography, refractometry, mass spectroscopy, high temperature thick film sensors, thin film field effect sensors, pellistor sensors, Taguchi sensors and quartz microbalance sensors.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: November 15, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Barbara Haviland Minor, Nandini C. Mouli, Daniel B. Laubacher, John Carl Steichen
  • Patent number: 8054082
    Abstract: The measurement is carried out by a device of two non- dissociable measurement chains resulting in a continuous measurement which is representative of the total concentration of tars (even as traces) of a hot gas. It involves coupling of methods including one, SPME/GC/MS/PID, which is discontinuous and a priori partial, the other, PID, which is continuous but difficult to interpret alone. It is based on on-line processing of the elements transmitted by each of the measurement methods used. A tar generator (28) allows calibration of the apparatuses and calculation of the different coefficients required.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: November 8, 2011
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Meryl Brothier, Pierre Estubier, Julien Comte, Patrick Baussand, Johann Soyez
  • Publication number: 20110265550
    Abstract: The invention relates to a measuring instrument and method for detecting the content of oil, hydrocarbons and oxidizable gases in air or compressed air. In order to develop a measuring instrument for detecting the content of oil, hydrocarbons and oxidizable gases in air or compressed air, said instrument being suitable for detecting concentrations in the lower ?g/m3 range or in the ppb range and allowing measuring accuracy of 10 micrograms oil/m3 air at a measurement error in the single-digit percentage range, it is proposed according to the invention that the measuring instrument comprises an air or compressed-air connection and, connected thereto, a flow limiter to which a catalyst is connected that is connected in turn with a photoionization detector, switchable means being provided for routing the air or compressed air over the oxidation catalyst or past it directly to the photoionization detector.
    Type: Application
    Filed: January 5, 2010
    Publication date: November 3, 2011
    Applicant: Synthesechemie Dr. Penth GmbH
    Inventors: Bernd Penth, Max Penth, Felix Penth
  • Patent number: 8048384
    Abstract: A chemochromic H2 sensor includes supports including a plurality of metal oxide particles exclusive of titania, and a platinum group metal (PGM) compound on the supports. The PGM compound is an oxide, hydroxide hydrated oxide, PGM salt or a PGM complex. When the PGM compound is a PGM salt or a PGM complex, the supports can include titania particles.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: November 1, 2011
    Assignee: University of Central Florida Research Foundation, Inc.
    Inventors: Gary Bokerman, Ali Tabatabaie-Raissi, Nazim Muradov
  • Publication number: 20110260731
    Abstract: The invention relates to a battery module, in particular for a motor vehicle, which includes a housing, at least one battery disposed in the housing, at least one inlet opening for introducing a tempering fluid into the housing, at least one outlet opening for discharging the tempering fluid from the housing, and at least one monitoring device for detecting a state of the at least one battery. According to the invention, the at least one inlet opening and the at least one outlet opening can be sealed by at least one closure element in the event of a disruption condition of the at least one battery, so that materials exiting the at least one battery, in particular gases, during the disruption state can not escape from the battery module.
    Type: Application
    Filed: September 14, 2009
    Publication date: October 27, 2011
    Inventors: Ulrich Alkemade, UIrich Sauter
  • Patent number: 8043567
    Abstract: A gas sensor which includes walls delimiting a gas detection chamber, and having an introduction port (or an inlet) through which an observed gas is introduced into the gas detection chamber, a measuring element disposed in the gas detection chamber and measuring concentration of a subject gas contained in the observed gas, and a heater constituting at least a portion of the walls, the portion facing the gas detection chamber.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: October 25, 2011
    Assignee: Honda Motor Co., Ltd.
    Inventors: Takashi Sasaki, Takashi Saito, Akihiro Suzuki, Hidetoshi Oishi