Gas Analysis Patents (Class 73/23.2)
  • Publication number: 20130091925
    Abstract: Black shales differ from conventional gas plays in that in most cases there exists minimal geological scale gas migration. Thus, it is difficult to perform accurate reservoir characterization using classic geophysical and geological techniques (i.e. seismic analysis, gravity anomalies, structural geology, etc.). The principal technique that has traditionally been applied to determine the genetic history of gases or other fluids in the Earth's crust is the analysis of carbon isotopic composition of hydrocarbon gases and carbon dioxide, which has significant gaps in differentiating thermal and migrational histories. The present invention describes a method to determine the genetic fingerprint (i.e. identify the source formation and migration histories) of hydrocarbon gases or other crustal fluids of a geological system at lower cost and greater accuracy than existing methods (carbon and hydrogen isotopes) by analyzing the intrinsic, atmospheric and radiogenic (i.e.
    Type: Application
    Filed: October 12, 2012
    Publication date: April 18, 2013
    Inventors: Thomas Henry Darrah, Robert Joseph Poreda
  • Publication number: 20130091927
    Abstract: A system for detecting aberrations within a workpiece having a conduit with an input end and an output end is disclosed. The system comprises a fluid delivery device arranged proximate to input end of conduit to pass fluid into input end of the conduit, the fluid delivery device having one or more fluid controllers that control one or more conditions of the fluid passed thereby, a sensor having an input and an output, the input arranged proximate to output end of conduit to measure one or more conditions of the fluid experienced by input, a workpiece exciter situated to excite workpiece and a processor having an input connected to the output of sensor, the processor having a correlator to correlate any changed of the one or more conditions of the fluid experienced by input of sensor with an excitement of workpiece by sensor.
    Type: Application
    Filed: October 10, 2012
    Publication date: April 18, 2013
  • Patent number: 8418377
    Abstract: A dryer with a drying chamber that includes a process air duct for guiding process air through the drying chamber, a heat pump with a heat sink in the process air duct and through which air can flow in an outlet air direction for cooling down the process air, and a heat source arranged in the process air duct and through which air can flow in an inlet air direction for heating up the process air. The outlet air direction and the inlet air direction are substantially parallel to one another. The heat sink and the heat source are in a plane substantially perpendicular to the outlet air direction and to the inlet air direction alongside one another.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: April 16, 2013
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Klaus Grunert, Günter Steffens, Andreas Stolze
  • Patent number: 8416091
    Abstract: An illumination device is provided at the handle-piece of a sniffing probe, in which the illumination device illuminates the region to be inspected. This incorporation considerably facilitates handling of the sniffing probe in difficult-to-access and poorly illuminated regions, for sniffing probes used for detecting gases, for example, for detecting a gas leakage in a cooling device of a motor vehicle.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: April 9, 2013
    Assignee: Inficon GmbH
    Inventors: Randolf Rolff, Ralf Kilian, Jörn Liebich, Norbert Moser, Norbert Rolff
  • Patent number: 8413482
    Abstract: A sensor including: a sensor element; terminal metal fittings; a terminal surrounding member; and lead wires. The terminal surrounding member is divided into a front side surrounding member and a rear side surrounding member, and a rear end face of the front side surrounding member abuts a front end face of the rear side surrounding member. The sensor includes a fitting structure including a recess portion formed on one of the rear and front end faces and a protruding portion formed on the other, such that one of the front side surrounding member and the rear side surrounding member is prevented from rotating relative to the other about an axis of the sensor, and is prevented from deviating in a direction perpendicular to the axis of the sensor relative to the other.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: April 9, 2013
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Makoto Kume, Noboru Matsui
  • Publication number: 20130075088
    Abstract: An apparatus comprising first and second fluid intakes, a pump, and a sample chamber, may be positioned in a borehole penetrating a subterranean formation. A method of use thereof may comprise drawing fluid from the subterranean formation and into the first and second fluid intakes using the pump, discharging into the borehole at least a portion of the fluid drawn into the second fluid intake, and selectively diverting at least a portion of the fluid drawn into the first fluid intake to the sample chamber.
    Type: Application
    Filed: January 13, 2011
    Publication date: March 28, 2013
    Inventors: Mark Milkovisch, Alexander F. Zazovsky, Simon Ross
  • Patent number: 8402812
    Abstract: It is an object of the present invention to provide a gas concentration detection apparatus that is capable of forming an accurate activity judgment when a gas concentration detection cell begins to detect gas concentration with high accuracy. When warm-up begins at time t0 in a NOx concentration detection apparatus that achieves NOx concentration detection with a NOx sensor cell after excess oxygen is discharged by an oxygen pump cell, a NOx sensor cell output begins to rise at time t1. Subsequently, at time t2, an oxygen pump cell output begins to rise. An inflection point appearing in the NOx sensor cell output is then located. At time t5 at which the inflection point appears, an activity judgment about the NOx sensor cell is formed.
    Type: Grant
    Filed: December 24, 2008
    Date of Patent: March 26, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Takanori Sasaki
  • Publication number: 20130067987
    Abstract: High Sensitivity Artificial Olfactory System provide for users an easy way to efficiently detect, identify and track any material(s), plant(s), animal(s), or even person(s), based on the odour properties of these. This invention is unique by it's special property that's make it able to sensitively and intelligently recognize and make a difference between odour samples, even if their properties are very approaching or mixed with other odour samples. This invention could be effectively used even where high security is required; to detect, recognize, identify and even track the movement of material(s), animal(s), plant(s) and person(s) Worldwide, in air, water, underground and any other place in Universe, based on the odour/smell properties of these. This invention make easy to keep in track Worldwide the movement of person(s) suspected in crime or terrorist activities, even if the mentioned person travel with false identity documents or the physical appearance has been changed.
    Type: Application
    Filed: September 19, 2011
    Publication date: March 21, 2013
    Inventor: Attila Grieb
  • Publication number: 20130061655
    Abstract: Embodiments of the present invention provide improved systems and methods for providing an atomic sensor device. In one embodiment, the device comprises a sensor body, the sensor body enclosing an atomic sensor, wherein the sensor body contains a gas evacuation site located on the sensor body, the gas evacuation site configured to connect to a gas evacuation device. The device also comprises a getter container coupled to an opening in the sensor body, an opening in the getter container coupled to an opening in the sensor body, such that gas within the sensor body can freely enter the getter container. The device further comprises an evaporable getter enclosed within the getter container, the evaporable getter facing away from the sensor body.
    Type: Application
    Filed: September 13, 2011
    Publication date: March 14, 2013
    Inventors: Christina M. Schober, Jennifer S. Strabley, Rodney H. Thorland, Chad Langness, Delmer L. Smith, Terry D. Stark
  • Publication number: 20130047701
    Abstract: In representative embodiments, a system includes an acoustic emitter, a controller, an optical sensor, and an indicator for indicating a detection of a predetermined trace chemical vapor by the optical sensor. The acoustic emitter is positioned at a predetermined distance above the ground surface and configured to project a beam of acoustic energy toward the ground surface with a variable angle of incidence ?. The controller is configured to control the acoustic emitter to vary the angle of incidence of the acoustic beam within the variable angle of incidence ?, while the optical sensor is configured for standoff sensing of a trace chemical vapor proximate the ground surface. Excitation of the ground surface, particularly at a critical angle of incidence ?, causes the release of trace chemical vapors from a buried source and the soil into the air above the buried source.
    Type: Application
    Filed: August 27, 2011
    Publication date: February 28, 2013
    Inventors: Leora Peltz, Michael A. Carralero, Paul R. Daveis, Frederick L. Davis, John F. Takacs
  • Patent number: 8381574
    Abstract: An apparatus for determining the proportion of gases in a gas mixture, has a measurement chamber having a chamber defining structure, a gas inlet and a gas outlet, an ultrasound source and an ultrasound detector mounted such that the ultrasound source is capable of transmitting ultrasound through the chamber to the ultrasound detector; a temperature sensor mounted such that the sensor is capable of sensing the temperature in the chamber. The chamber defining structure is adapted to amplify thermal exchange with a gas content in the chamber so as to suppress a temperature change in the chamber.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: February 26, 2013
    Assignee: Maquet Critical Care AB
    Inventor: Erik Cardelius
  • Patent number: 8373568
    Abstract: To achieve gas detection in a precise and reliable way, but at the same time without consuming too much energy, a gas detection system is provided which generally comprises a pair of two different gas detectors. The first detector (DLP) is active continuously and sense substantially for an unspecific change in the local gas mixture. As a reaction upon the change, the second detector (DHP) of the pair is activated. This detector (DHP) performs the determination of the concentration of a specific gas or several specific gasses. The second detector (DHP) may be of a type which consumes more power, but will be active for a short period of time before returning to an inactive state where only the first detector (DLP) is active. The first detector (DLP) however is of a type using little power.
    Type: Grant
    Filed: July 16, 2008
    Date of Patent: February 12, 2013
    Assignee: Gassecure AS
    Inventors: Sigurd T. Moe, Niels Peter Ostbo, Knut Sandven, Hakon Sagberg
  • Publication number: 20130031957
    Abstract: A detector includes a component having a surface. The surface includes, or is at least partially coated with, a contaminant-resistant or self-cleaning material. This allows the detector to remain clean without manual cleaning.
    Type: Application
    Filed: February 11, 2011
    Publication date: February 7, 2013
    Inventors: John E. A. Shaw, Timothy Andrew James
  • Patent number: 8357542
    Abstract: Provided are a suspended particulate matter measurement apparatus capable of automatically measuring a nitrate ion content and a sulfate ion content in the atmosphere, and a suspended particulate matter measurement method using the same. The suspended particulate matter measurement apparatus includes a filter, suction part, extraction part, measurement part, and a recording part. The suction part suctions air in the atmosphere at a constant flow rate to cause particulate matter contained therein to be adsorbed onto the filter. The extraction part extracts components of the particulate matter adsorbed onto the filter, by dissolving the particulate matter into a solvent, and collects a resultant solution. The measurement part measures at least one of a nitrate ion content and a sulfate ion content in the solution collected by the extraction part, and outputs the measurement result. The recording part records the measurement result outputted from the measurement part.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: January 22, 2013
    Assignee: Kimoto Electric Co., Ltd.
    Inventors: Takashi Kimoto, Yoichi Mitani, Xiang Gao, Akiko Fukunaga, Saori Kitayama
  • Publication number: 20130008228
    Abstract: A gas measurement system is provided that includes a mechanism for customizing gas supplied to the system. The system further includes a plurality of test locations that can be serviced by a common vessel portion and common sampling and testing infrastructure. The system further includes a controller that is able to control the customization of the supply gas and the location of the common vessel portion.
    Type: Application
    Filed: June 27, 2012
    Publication date: January 10, 2013
    Applicant: Dow AgroSciences LLC
    Inventors: Pradeep Setlur, Yang Yang, Kirsti A. Golgotiu
  • Patent number: 8349260
    Abstract: This invention relates to a system for mitigating the deleterious effect on a gas-detection sensor of exposure to ozone, which system comprises a sensor capable of detecting one or more select gas species, the performance of which sensor is degraded by contact with ozone, and a scrubber capable of absorbing ozone or otherwise converting ozone to one or more other substances so as to mitigate degradation of the sensor's performance; and a method for mitigating such deleterious effect as well.
    Type: Grant
    Filed: June 26, 2006
    Date of Patent: January 8, 2013
    Assignee: Microsensor Systems, Inc.
    Inventor: Henry Wohltjen
  • Publication number: 20130000377
    Abstract: A method for monitoring a gas is disclosed. This method may include applying a voltage pulse to electrodes exposed to the gas, and determining an actual current between electrodes during application of the voltage pulse. The method may further include determining a concentration of a constituent in the gas based on the actual current and an expected identity of the constituent.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 3, 2013
    Inventor: Sergey KORENEV
  • Publication number: 20130000386
    Abstract: A gas monitoring system is disclosed. The gas monitoring system may have a first electrode, a second electrode spaced apart from the first electrode to receive a gas between the first and second electrodes, and a pulse generator configured to apply a voltage pulse, tuned to a particular constituent of the gas, to the first and second electrodes and create a non-thermal plasma between the first and second electrodes. The gas monitoring system may also have a detection controller in communication with the pulse generator. The detection controller may be configured to determine an actual current between the first and second electrodes during application of the voltage pulse, and to determine a concentration of the constituent based on the actual current and an expected identity of the constituent.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 3, 2013
    Inventor: Sergey KORENEV
  • Publication number: 20120304735
    Abstract: Provided is a gas sensor in which a connection terminal can be favorably fitted onto a cylindrical sensor element without causing a breakage of the connection terminal. An oxygen sensor (1) includes an outer connection terminal (29) having an outer fitting portion (53), an extension portion (55) extending inwardly from an axially intermediate point of the outer fitting portion (53) and pulling prevention portions (75) and (77) formed on rear end parts of the outer fitting portion (53) at positions adjacent to the extension portion (55). When the extension portion (55) of the outer connection terminal (29) is inserted in and pulled out from a through hole (23) of a separator (27), the extension portion (55) can be prevented from further pulling in the through hole (23) by contact of the pulling prevention portions (75) and (77) with a front end surface of the separator (27).
    Type: Application
    Filed: December 6, 2011
    Publication date: December 6, 2012
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Hidekazu Kato, Tatsuya Okumura, Masahiro Asai, Tomoyuki Miyashita
  • Patent number: 8323982
    Abstract: Fluid analyte sensors include a photoelectrocatalytic element that is configured to be exposed to the fluid, if present, and to respond to photoelectrocatalysis of at least one analyte in the fluid that occurs in response to impingement of optical radiation upon the photoelectrocatalytic element. A semiconductor light emitting source is also provided that is configured to impinge the optical radiation upon the photoelectrocatalytic element. Related solid state devices and sensing methods are also described.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: December 4, 2012
    Assignee: Valencell, Inc.
    Inventors: Steven Francis LeBoeuf, Jesse Berkley Tucker, Michael Edward Aumer
  • Patent number: 8318525
    Abstract: A device for sensing a gas comprises a plastics housing (106, 107) moulded in situ around at least one portion of a conducting lead frame (100), the housing defining an enclosure (113) and being provided with means for enabling gas flow into the enclosure. A gas sensitive element (114) within the enclosure (113) is mounted to the conducting lead frame (100). The conducting lead frame (100) comprises connection leads which are accessible through, and at least partially encapsulated by, the wall of the housing.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: November 27, 2012
    Assignee: City Technology Limited
    Inventors: David Frank Davies, Ian Paul Andrews, Anthony Richard Cowburn, Stuart Christopher Cutler
  • Patent number: 8313953
    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: February 21, 2012
    Date of Patent: November 20, 2012
    Assignee: Horizon Technologies, Inc.
    Inventors: Robert S. Johnson, Stephen Scheufele
  • Publication number: 20120285217
    Abstract: The invention provides a measuring device for measuring soot deposition, said device having a measuring probe (3) for measuring the quantity of soot deposited on a collection surface (2) of an elongate dielectric substrate, said probe including detection electrodes (6, 7) that are arranged in adjacent manner and that are for connecting to an electronic system that is capable of evaluating the quantity of soot deposited on the collection surface. In the invention, the device includes, for at least one detection electrode (6, 7), a measurement loop (B1) that includes said at least one detection electrode (6, 7) and that is connected to a detection system for detecting the variation in the electric resistance of said measurement loop, so as to determine the operating state of said detection electrode.
    Type: Application
    Filed: February 15, 2011
    Publication date: November 15, 2012
    Inventors: Frederic Duault, Stephane Raquin, Laurence Achille
  • Publication number: 20120272712
    Abstract: Screening of items for the presence of contaminants, such as explosives residue, is accomplished by subjecting an item loaded into a pressure chamber to a pressure substantially in excess of atmospheric pressure conditions and rapidly decompressing the item to the ambient atmospheric pressure. The rapid decompression serves to scavenge vapors and particles from the exterior and interior of the item and any objects it contains. A sample of the vapors and particles removed from the item by the rapid decompression is sampled and is tested to determine whether a predetermined contaminant is present in the sample. Depending on the types of contaminants for which the sample is tested, it is possible to detect whether explosives, biological or chemical agents, and/or narcotics residues are present on or in the item being screened.
    Type: Application
    Filed: March 26, 2007
    Publication date: November 1, 2012
    Inventors: David H. Fine, Freeman W. Fraim
  • Publication number: 20120266646
    Abstract: An apparatus for detecting particulate and a correction method of the apparatus for detecting particulate matter that detects particulate matter within a gas to be measured are provided. The correction method corrects the individual differences inevitably occurring during the manufacturing process of particulate matter detection sensors. The apparatus for detecting particulate matter includes an applied voltage correction means. The applied voltage correction means applies correction information acquired by the correction method to detection control.
    Type: Application
    Filed: April 20, 2012
    Publication date: October 25, 2012
    Inventors: Eriko MAEDA, Takehito Kimata
  • Patent number: 8294008
    Abstract: Carbon nanotubes are formed on projections on a substrate. A metal, such as nickel is deposited on the substrate with optional platforms, and heated to form the projections. Carbon nanotubes are formed from the projections by heating in an ethylene, methane or CO atmosphere. A heat sensor is also formed proximate the carbon nanotubes. When exposed to IR radiation, the heat sensor detects changes in temperature representative of the IR radiation. In a gas sensor, a thermally isolated area, such as a pixel is formed on a substrate with an integrated heater. A pair of conductors each have a portion adjacent a portion of the other conductor with projections formed on the adjacent portions of the conductors. Multiple carbon nanotubes are formed between the conductors from one projection to another. IV characteristics of the nanotubes are measured between the conductors in the presence of a gas to be detected.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: October 23, 2012
    Assignee: Honeywell International Inc.
    Inventors: Barrett E. Cole, J. David Zook
  • Patent number: 8290717
    Abstract: In a plasma processing chamber, a method and an arrangement to stabilize pressure are provided. The method includes providing coarse pressure adjustments in an open-loop manner and thereafter providing fine pressure adjustments in a closed-loop manner. The coarse pressure adjustments are performed by rapidly re-position confinement rings employing an assumed linear relationship between the conductance and the confinement rings position to bring the pressure in the plasma generating region quickly to roughly a desired set point. The fine pressure adjustments are performed by at least employing mechanical vacuum pump(s), turbo pump(s), confinement ring positioning and/or combinations thereof to achieve a derive pressure set point.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: October 16, 2012
    Assignee: Lam Research Corporation
    Inventors: Rajinder Dhindsa, James H. Rogers
  • Patent number: 8286464
    Abstract: Embodiments of the invention relate to a device for a fluid enclosure. The device includes a sensing device that responds to a change in distance relative to a fluid enclosure. The change in distance is a function of at least one dimension of the fluid enclosure.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: October 16, 2012
    Assignee: Societe BIC
    Inventors: Gerard F McLean, Mark Petersen, Clement Fortin, Joerg Zimmerman
  • Patent number: 8284986
    Abstract: A method for reducing the effects of background radiation introduced into gaseous plume spectral data obtained by an aerial imaging sensor, includes capturing spectral data of a gaseous plume with its obscured background along a first line of observation and capturing a second image of the previously obscured background along a different line of observation. The parallax shift of the plume enables the visual access needed to capture the radiometric data emanating exclusively from the background. The images are then corresponded on a pixel-by-pixel basis to produce a mapping. An image-processing algorithm is applied to the mapped images to reducing the effects of background radiation and derive information about the content of the plume.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: October 9, 2012
    Assignee: Rafael Advanced Defense Systems Ltd
    Inventors: Karni Wolowelsky, Zvi Figov
  • Patent number: 8281642
    Abstract: Provided are an environmental gas sensor and a method of manufacturing the same. The environmental gas sensor includes an insulating substrate, metal electrodes formed on the insulating substrate, and a sensing layer in which different kinds of nanofibers are arranged perpendicular to each other on the metal electrodes. Thus, the environmental gas sensor can simultaneously sense two kinds of gases.
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: October 9, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Su Jae Lee, Jin Ah Park, Jae Hyun Moon, Seong Hyun Kim, Tae Hyoung Zyung, Hye Yong Chu
  • Publication number: 20120247180
    Abstract: Device for the selective detection of benzene gas, which comprises, on a base substrate, a combination of at least one functionalised multi- or single-wall carbon nanotube sensor decorated with rhodium clusters, and at least one functionalised multi- or single-wall carbon nanotube sensor decorated with metal clusters selected from gold, palladium, nickel and titanium, and/or undecorated, where said substrate additionally comprises means for measuring the variation in the resistance of said sensors. The device is useful at ambient temperature in the presence or absence of oxygen and easy to handle. It also relates to a method for the manufacturing thereof and for detecting the gas in the chemical industry, the petrochemical industry, petrol stations, or household, aeronautical or research applications.
    Type: Application
    Filed: November 2, 2010
    Publication date: October 4, 2012
    Inventors: Eduard Llobet Valero, Radouane Leghrib, Marc Delgado Olivella, Jean-Jacques Pireaux, Alexandre Felten, Jérôme Guillot, Henri-Nöel Migeon, Ali Mansour, François Amand Baudouin Reniers, Nicolas Yves Claessens, Frédéric Gilbert Michel Demoisson
  • Publication number: 20120247179
    Abstract: A removable sensor housing for connection to a structure in a fluid system such as a quick connector body. The sensor housing removably attaches to a mating portion on the other structure. It includes a shaft inserted in a bore on the other structure with an interposed seal. An attachment mechanism is used to secure the sensor housing to the structure. Alternative mechanisms are disclosed. In certain forms, the sensor housing is configured to be positioned in fixed relation to the other structure.
    Type: Application
    Filed: March 23, 2012
    Publication date: October 4, 2012
    Applicant: TI Group Automotive Systems, LLC
    Inventors: Jim Kerin, Richard M. Pepe, Stephen H. Gunderson
  • Patent number: 8276432
    Abstract: A transport pod interface in one example including a sampling probe connected to a gas analyzer and an actuator coupled with an access door on the transport pod in the coupling position, and that moves said door towards the base of the interface in an retracted position in which the volume of gas to be analyzed contained within the transport pod is accessible by the sampling probe, characterized in that it includes at least one sealing joint configured such that at least when the interface is in the retracted position, the space between the actuator and said base is sealed in such a way as to isolate the volume of gas to be analyzed.
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: October 2, 2012
    Assignee: Alcatel Lucent
    Inventor: Erwan Godot
  • Patent number: 8272248
    Abstract: An emission test system may include at least one controller configured to determine, directly or indirectly, a quantity of diluted exhaust sample in a container at the completion of an emissions test, and to cause additional diluent gas to be added to the container based on the determined quantity.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: September 25, 2012
    Inventors: Mark T. Guenther, Daniel D. Carpenter, Jarret D. Zablocki, Fredric C. Schmidt, Richard Thomas Rooney, Timothy Alfred Nevius, Scott Thomas Porter, Leslie Hill
  • Publication number: 20120238021
    Abstract: Methods for synthesizing macroscale 3D heteroatom-doped carbon nanotube materials (such as boron doped carbon nanotube materials) and compositions thereof. Macroscopic quantities of three-dimensionally networked heteroatom-doped carbon nanotube materials are directly grown using an aerosol-assisted chemical vapor deposition method. The porous heteroatom-doped carbon nanotube material is created by doping of heteroatoms (such as boron) in the nanotube lattice during growth, which influences the creation of elbow joints and branching of nanotubes leading to the three dimensional super-structure. The super-hydrophobic heteroatom-doped carbon nanotube sponge is strongly oleophilic and an soak up large quantities of organic solvents and oil. The trapped oil can be burnt off and the heteroatom-doped carbon nanotube material can be used repeatedly as an oil removal scaffold.
    Type: Application
    Filed: March 19, 2012
    Publication date: September 20, 2012
    Applicant: William Marsh Rice University
    Inventors: Daniel Paul Hashim, Pulickel M. Ajayan, Mauricio Terrones
  • Publication number: 20120227466
    Abstract: Methods for detection of acetylene, acetylene concentration and changes in acetylene concentration in a mixture of gases are provided. The gas mixture includes acetylene and hydrogen and may be a hydrogen gas stream or a gas stream also including ethylene. The methods of the invention can also detect acetylene in a gas mixture dissolved in a liquid. The methods of the invention rely on the use of metal-insulator-semiconductor (MIS) sensors in which the metal layer is a continuous layer of a binary alloy selected to facilitate acetylene detection such as alloys of palladium with a second metal such as silver, gold or copper.
    Type: Application
    Filed: March 9, 2012
    Publication date: September 13, 2012
    Inventors: James William Medlin, Kristi L. Miller, Stephen Marshall
  • Publication number: 20120229287
    Abstract: A system for monitoring the amount of a selected gas in a gas flow is provided comprising a gas sensor for sensing the selected gas in the gas flow and producing a corresponding electrical signal; at least one pressure regulator to adjust a pressure of the gas flow to a standardized pressure before the gas flow reaches the gas sensor; a flow adjustment device to adjust a flow rate of the gas flow to a standardized flow rate before the gas flow reaches the gas sensor; and a controller for receiving the electrical signal from the gas sensor and processing the electric signal to calculate the concentration of the selected gas in the gas flow.
    Type: Application
    Filed: August 31, 2010
    Publication date: September 13, 2012
    Inventor: Lorne Schuetzle
  • Patent number: 8264326
    Abstract: A biometrics sensor includes a portion for sucking air, a molecular sieve portion for selectively passing or adsorbing specific gas contained in the air, a gas detecting section for detecting the concentration of gas passed through the molecular sieve or the remaining gas, and a data processing section for comparing the detection result with a prestored detection result, wherein the gas detecting section selectively detects predetermined gas, and the data processing section performs determination or probabilistic determination on an authentication object person by comparing the composition ratio of gas for each authentication object person with a prestored composition ratio.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: September 11, 2012
    Assignees: Kyushu University, Use Co., Ltd.
    Inventors: Kenshi Hayashi, Bunpei Yoshihiro
  • Patent number: 8256747
    Abstract: A system and method for closed-loop testing of a biological or chemical sensor is disclosed. The tester is fluidically coupled to the input port and exhaust port of a sensor. A mixture of a chemical or biological simulant and air is generated by the tester and is delivered to the sensor. The mixture of simulant and air exiting the sensor is delivered to a collection device.
    Type: Grant
    Filed: October 18, 2006
    Date of Patent: September 4, 2012
    Assignee: Lockheed Martin Corporation
    Inventor: Kevin J. Tupper
  • Patent number: 8259299
    Abstract: Systems and methods for scanning and analyzing characteristics of a gas sample utilizing electromagnetic radiation are disclosed. More particularly, the systems and methods utilize an electromagnetic radiation source connected to a transmitter and an analyzer connected to a receiver. A sample gas volume to be analyzed is placed between the transmitter and receiver and a frequency sweep of electromagnetic radiation is transmitted through the sample to create a series of spectral data sets, which are developed into a composite spectrogram by the analyzer and processed to determine the one or more characteristics of the sample. A magnetic field can alternatively be applied around the transmitter, receiver and sample to enhance some characteristic analysis applications and to make other characteristic analysis applications possible.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: September 4, 2012
    Assignee: RF Science & Technology Inc.
    Inventors: David James Harra, Rick Eugene Sanner, Mark Norman Iverson
  • Patent number: 8258968
    Abstract: Hand held Remote Transponder Breathalyzer comprises of a portable breathalyzer device having a breath sensor circuitry used for converting given breath sample content into electronic signals; and a processor for storing a toxic breath setting and processing received conditioned electronic signals, and for comparing the received electronic conditioned signals with a preset threshold setting stored in the memory storage of the processor, and accordingly controlling the functional operation of a uniquely coded transponder circuitry. If given breath sample into the transponder breathalyzer sensor generated electronic conditioned signal is below toxic breath setting threshold. The processor upon receipt of the non-toxic electronic signal transmits a signal to activate for a preset time the functional operation of the transponder circuitry.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: September 4, 2012
    Inventors: Viken Der Ghazarian, Ohannes Der Ghazarian
  • Patent number: 8240188
    Abstract: An actual intake air quantity at the time when the intake air quantity is changed compulsorily with an EGR valve is measured with an airflow meter. An oxygen concentration of exhaust gas after combustion in a diesel engine is estimated based on the measured actual intake air quantity and a fuel injection quantity of the diesel engine. The estimated oxygen concentration is compared with an actual oxygen concentration sensed with an A/F sensor, thereby sensing response of the A/F sensor. Even if a response time for causing a change in the intake air quantity with the EGR valve changes, the change of the response time does not affect the estimate of the oxygen concentration since the oxygen concentration is estimated based on the actual intake air quantity. Therefore, the response of the A/F sensor can be sensed with high accuracy.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: August 14, 2012
    Assignee: Denso Corporation
    Inventor: Akira Umehara
  • Patent number: 8240190
    Abstract: The invention provides a novel method for the fabrication of nanomaterials, especially nanostructures arranged on a substrate with nanoparticles deposited thereon. The methods of the present invention can be used to fabricate a novel ambient-temperature gas sensor that is capable of detecting a variety of specific gasses over a range of concentrations.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: August 14, 2012
    Assignee: UWM Research Foundation, Inc.
    Inventors: Junhong Chen, Ganhua Lu
  • Publication number: 20120198912
    Abstract: A system for remote detection of a chemical is disclosed. The system includes a sample collection module that collects a sample and produces a sample vapor at a first location; a sample delivery module that delivers the sample vapor from the first location to a second location; a sample storage and concentration module that collects the sample vapor at the second location; and a sample analysis module that analyzes the sample collected in the sample storage and concentration module.
    Type: Application
    Filed: September 16, 2008
    Publication date: August 9, 2012
    Inventors: Kenneth J. Ewing, Fred Whiton, JR., Paul G. Kahl, JR.
  • Publication number: 20120201759
    Abstract: Hierarchical nanostructures and methods of fabrication. The structures include particles having a metal oxide outer shell with metal oxide wires extending from the outer shell. A multiscale structure according to the invention has particles above and below a critical size wherein the particles above the critical size have wires extending from the surface. These structures may be fabricated from a mixture prepared of relatively smaller metal particles having a size threshold below a threshold for nanowire formation and of relatively larger metal particles having a size above the threshold for nanowire formation. The mixture is oxidized at a selected temperature and for a selected time whereby the relatively smaller particles sinter and nanowires grow on the relatively larger particles thereby creating tunable hierarchical structures with metal-to-metal contact between the particles.
    Type: Application
    Filed: February 1, 2012
    Publication date: August 9, 2012
    Applicant: Massachusetts Institute of Technology
    Inventors: Christopher Jameson Love, J. David Smith, Kripa K. Varanasi
  • Patent number: 8236246
    Abstract: Disclosed herein is a gas sensitive apparatus that is useful in view of its applicability to the detection or quantitative determination of individual gases present in a gas mixture, and is advantageous in view of its compact size, and its low power consumption.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: August 7, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventor: Harry Edwards Betsill
  • Patent number: 8237116
    Abstract: GC-MS analysis apparatus has an interface section between GC and MS sections, which is located with respect to the direction of an analyte flow downstream of the GC section and upstream of the MS section. The interface section comprises at least one membrane with at least one orifice capable of establishing a molecular flow condition in the analyte passing between the GC and MS sections through the membrane. The membrane is subjected to a pressure differential such that the pressure pa in a region located upstream of the membrane is higher than the pressure pb in a region located downstream of the membrane.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: August 7, 2012
    Assignee: Agilent Technologies, Inc.
    Inventor: Raffaele Correale
  • Publication number: 20120196935
    Abstract: Materials and methods for detecting the early onset of shock and multi-organ failure by production of tissue breakdown products in biological samples (e.g., expired air).
    Type: Application
    Filed: September 18, 2009
    Publication date: August 2, 2012
    Inventors: Geert W. Schmid-Schonbein, Frank Delano
  • 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
    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