Impurity Patents (Class 73/31.03)
  • Patent number: 10626498
    Abstract: There is provided a method of processing a target object to be processed including a porous film and a mask. The method include supplying a first gas into a processing chamber of a plasma processing apparatus in which the target object including the porous film is accommodated, and generating a plasma of a second gas in the processing chamber to remove the mask. The first gas is a processing gas having a saturated vapor pressure of less than or equal to 133.3 Pa at a temperature of a stage on which the target object is mounted in the processing chamber, or includes the processing gas. In the step of supplying the first gas, no plasma is generated, and a partial pressure of the processing gas supplied into the processing chamber is greater than or equal to 20% of the saturated vapor pressure.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: April 21, 2020
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Shigeru Tahara, Eiichi Nishimura
  • Patent number: 10533930
    Abstract: A gas monitoring and control system including a gas sampling chamber, sampling inlet and outlet valves, a pump and a controller. Sensors are disposed within the interior chamber that sense characteristics of a gas from a gas source and generate representative signals. The sampling inlet and outlet valves i) allow the gas into the gas sampling chamber while operating in a gas sampling state, and ii) allow ambient air into the gas sampling chamber while operating in a purge state. The pump i) causes the gas to flow through the gas sampling chamber while operating in the gas sampling state or ii) causes ambient air to flow through the gas sampling chamber while operating in the purge state. The controller causes the sampling inlet and outlet valves, and the pump to alternate operating in the gas sampling or purge state to selectively expose the sensors to the gas.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: January 14, 2020
    Assignee: Chrintec, LLC
    Inventor: Gregory R. Chrin
  • Patent number: 10429331
    Abstract: A heat exchanger monitoring system includes a heat exchanger 11 capable of receiving a flow F of a working fluid therethrough. A first sensor 12 is disposed upstream of the heat exchanger 11 for measuring at least one property of fluid relating to an amount of contaminant material carried by a first flow entering the heat exchanger 11 and configured to output a first sensor signal indicative of the measured property of the fluid. A second sensor 14 is disposed downstream of the heat exchanger 11 for measuring the same property of the fluid relating to an amount of contaminant material carried by a second flow exiting the heat exchanger 11 and configured to output a second sensor signal indicative of the measured property of the fluid.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: October 1, 2019
    Assignee: HS MARSTON AEROSPACE LTD.
    Inventor: Paul Phillips
  • Patent number: 10242550
    Abstract: Aspects of the present disclosure involve an apparatus, systems, and methods for soiled garment detection and notification. The method may include determining a laundering status of a garment based on a comparison of sensor data and a baseline odor level of the garment. The sensor data, which comprises a measure of odor being released by the garment, may be obtained from an olfactory sensor. The method further includes causing display of a user interface to present the laundering status of the garment.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: March 26, 2019
    Assignee: eBay Inc.
    Inventors: Dane Glasgow, Corinne Sherman Stewart, David Ramadge, Timothy Carlson, Sergio Pinzon Gonzales, Jr.
  • Patent number: 9347916
    Abstract: The present invention relates to a process for determining mycotoxin production in an interior environment which includes a search for a chemical fingerprint comprising at least one target molecule that is a VOC, optionally cyclic, associated with mycotoxin production, preferably selected from the group comprising cububene, cadiene, copaene, ylangene, D germacrene, muurolane, 1,1-dimethylbutylbenzene, 1,1,2-trimethyl-propyl-benzene, 1-hexyltetradecylbenzene, tetratetracontane, 1-ethyldecylbenzene, hydroxytoluene butylate, 1-butyloctylbenzene, 1-propylnonylbenzene, 2-methylisoborneol and at least one sesquiterpene.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: May 24, 2016
    Assignee: CENTRE SCIENTIFIQUE ET TECHNIQUE DU BATIMENT
    Inventors: Stéphane Moularat, Enric Robine
  • Patent number: 9260738
    Abstract: This invention proposes a method comprising the steps of: (a) taking an air sample in an indoor environment, then (b) detecting Microbial Volatile Organic Compounds (MVOCs) in the sample. The step (b) comprises searching for a chemical imprint comprising at least one target molecule that is an MVOC associated with an aspergillus metabolism. Thanks to the invention, detection of such target molecules is easier and faster than detection of aspergillus strains or soluble aspergillus metabolites.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: February 16, 2016
    Assignee: CENTRE SCIENTIFIQUE ET TECHNIQUE DU BATIMENT
    Inventors: Stephane Moularat, Enric Robine
  • Patent number: 9074731
    Abstract: A gas monitoring and oxygen supply control system, including a flame-proof and explosion proof housing; a gas monitoring sensor system enclosed in said housing, said sensor system including a sensor controller, a plurality of gas sensors, and a CPU; air sampling pipes in fluid communication with said gas sensors and with the atmospheres to be sampled; input sampling ports disposed on said air sampling pipes and exposed to the atmospheres to be sampled; at least one exhaust pipe for venting gases to a select atmosphere outside said housing; flame-proof port assemblies disposed through a wall of said housing separating said sensor system from an outside atmosphere and through which said air sampling pipes and said exhaust pipe are disposed; at least one pump operatively connected to said air sampling pipes so as to provide both suction and exhaust, said pump electronically connected to and controlled by said CPU; a plurality of valves disposed on said air sampling pipes and electronically coupled to and control
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: July 7, 2015
    Assignee: VENTURE CORPORATION LIMITED
    Inventor: James P. Barrett
  • Patent number: 9063234
    Abstract: An atomic particle detection assembly includes one or more detectors that detect atomic particles. The detectors are positioned within a first chamber having a first operating pressure. The atomic particle detection assembly includes a junction apparatus supporting the detectors. The junction apparatus defines a second chamber having a second operating pressure that is different from the first operating pressure. Sensing electronics are attached to the detectors and the sensing electronics are housed within the second chamber of the junction apparatus.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: June 23, 2015
    Assignee: GENERAL ELECTRIC COMPANY
    Inventor: Benjamin John Olechnowicz
  • Patent number: 9010173
    Abstract: Disclosed is a pollution measurement apparatus which measures a pollutant concentration and a pollutant component in gas, and more particularly a pollution measurement apparatus for easily exchanging a sensor, which can facilely exchange only desired sensors when it is required to exchange part of multiple sensors for sensing pollution.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: April 21, 2015
    Assignee: Scientec Lab Center Co., Ltd.
    Inventors: Ik-Jae Lee, Han-Soo Kim, Chang-Ik Kang, Ji-Sun Kim, Sun-Tae Kim
  • Patent number: 8915121
    Abstract: An encapsulated device comprising an integrated gas permeation sensor is provided, comprising a base substrate with an electronic component arranged thereon being enclosed within an encapsulation for protecting the electronic component from moisture and/or oxygen; at least one sensor is arranged within the encapsulation to measure the permeation of gas into the encapsulation; each sensor comprises an electrically conductive sensing element comprising a moisture and/or oxygen sensitive material, wherein the reaction of said material with moisture and/or oxygen results in a change in the electrical resistance/conductivity of the sensor.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: December 23, 2014
    Assignee: Agency for Science, Technology and Research
    Inventors: Ramadas Senthil Kumar, Adrian Paul Burden, Soo Jin Chua
  • Patent number: 8915119
    Abstract: A detection apparatus includes a particulate matter (PM) detection unit, a temperature detection unit, and a correction unit. The PM detection unit includes an insulator, a pair of electrodes, and a detector. The insulator is disposed in an exhaust path of an internal combustion engine through which an exhaust gas flows. The pair of electrodes are arranged in contact with at least a part of the insulator. The detector detects a PM detection value which is a value correlated to an amount of PM in the exhaust gas. The temperature detection unit detects at least one of an exhaust temperature of the exhaust gas passing through the PM detection unit and an insulator temperature of the insulator. The correction unit corrects the PM detection value detected by the PM detection unit based on at least one of the exhaust temperature and the insulator temperature.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: December 23, 2014
    Assignee: Denso Corporation
    Inventors: Tomohiro Ueno, Shigeto Yahata
  • Patent number: 8904851
    Abstract: Provided herein are methods and devices for sensing air quality. In some embodiments, materials from mitochondrial membranes, and/or material that is present in mitochondrial membranes can be used as a detection system to optically detect the presence and/or absence of various materials.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: December 9, 2014
    Assignee: Empire Technology Development LLC
    Inventor: Michael Keoni Manion
  • Patent number: 8881574
    Abstract: A shipping container interrogation apparatus and method that utilizes the tubular frame members of the container to deliver input air to the interior of the container, and to receive sample air from the interior of the container. A detection apparatus may be used to detect an unauthorized material in the sample air that is received from the interior of the container. Sample air from the detection apparatus may be recycled back into the container by use of a tubular frame member of the container. Input air may be delivered to the interior of the container with turbulence and in any desired direction or pattern for better interrogation of the interior of the container.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: November 11, 2014
    Assignee: Research International, Inc
    Inventor: Elric W. Saaski
  • Patent number: 8875559
    Abstract: A system and method for taking a sample of hydrogen gas and conditioning that sample so that extremely low levels of contamination can be more accurately detected. Initially a sample of hydrogen gas is captured and isolated in a collection chamber. A hydrogen permeable membrane is provided having a first side and a second side. The first side of the hydrogen permeable membrane is exposed to the gas sample held within the collection chamber. The hydrogen gas contained within the gas sample begins to permeate through the hydrogen permeable membrane and exit the collection chamber. This causes the pressure of the gas sample within the collection chamber to decrease. Since contaminants remain in the collection chamber, the concentration of contaminants within the remaining sample increases exponentially. The residual pressure within the collection chamber is measured and converted into a contaminant level reading.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: November 4, 2014
    Assignee: Power & Energy, Inc.
    Inventor: Peter R. Bossard
  • Publication number: 20140311220
    Abstract: A system and method of taking a sample of hydrogen gas and reducing the hydrogen concentration by a factor greater than 1×108 while increasing the partial pressure of the contaminating gases by a factor greater than 100, so that extremely low levels of contamination can be accurately detected. A sample of hydrogen gas is captured. Only the hydrogen gas is removed leaving all the contaminating gases in the collection chamber. This causes the total pressure of the gas sample within the collection chamber to decrease dramatically since most of the gas was hydrogen. All the contaminants remain in the collection chamber. None are lost through pumping. As such, the concentration of contaminants within the remaining sample increases dramatically. The residual partial pressures of the contaminating gases within the collection chamber and can now be measured by a variety of techniques.
    Type: Application
    Filed: July 1, 2014
    Publication date: October 23, 2014
    Inventors: Peter R. Bossard, Luis Breziner, V, Paolo Moreschini
  • Publication number: 20140262837
    Abstract: The present invention provides for a device for detecting one or more target gas compounds, such as a volatile organic compound, such as formaldehyde, comprising a chamber comprising a gas inlet and a gas outlet, wherein the chamber is capable of absorbing one or more non-target gas compounds. When the device is in use, the gas outlet is in fluid communication with a detector capable of detecting the amount or concentration of the one or more target gas compounds.
    Type: Application
    Filed: May 30, 2014
    Publication date: September 18, 2014
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Meera A. Sidheswaran, Lara A. Gundel
  • Publication number: 20140165705
    Abstract: In a first mode, a monitoring system inputs humidified gas through at least a portion of a conduit. At least a portion of the water in the humidified gas adheres to the inner surface of the conduit, inhibiting contaminants in the gas sample from adhering to the inner surface. The water in the humidified gas may also push any contaminants adhered to the surface of the sample line back out the sample line. In a second mode, after previously passing the humidified gas through the conduit, the monitoring system controls a flow of a gas sample including the contaminants through the conduit to a gas analyzer. The one or more layer of water on the inner surface of the conduit prevents or reduces a buildup of undesirable contaminants on an inner surface of a conduit that conveys gas samples.
    Type: Application
    Filed: December 14, 2012
    Publication date: June 19, 2014
    Inventors: Yonquan Li, Daniel E. Glenn, K. Stephen Johnson, JR., Dieter Kita
  • Publication number: 20140154047
    Abstract: A method or system for steam purity monitoring in a steam powered turbine includes providing a chloride-sensing device in a steam flow path; generating a signal from the chloride-sensing device indicative of a concentration level of chloride ions in a steam flow; and indicating a concentration level of chloride ions in a steam flow. The steam turbine includes a rotor, a rotating shaft and a plurality of axially spaced rotor wheels. A plurality of rotating blades is mechanically coupled to each rotor wheel. A chloride-sensing device is disposed in a steam flow path. A controller is arranged to generate a signal from the chloride-sensing device indicative of a concentration level of chloride ions in a steam flow and indicate a concentration level of chloride ions in a steam flow.
    Type: Application
    Filed: November 30, 2012
    Publication date: June 5, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventor: Andrew Batton WITNEY
  • Publication number: 20140131624
    Abstract: A method that identifies the compounds contributing to a detected burnt odor from an air conditioner artificially reproduces the detected burnt odor, and prepares a corresponding burnt odor composition is provided. Through the analysis method of the present invention, the compounds that contribute to the detected burnt odor from an air conditioner are be identified and quantified. The detected burnt odor is reproduced from a combination of the compounds identified by the analysis method of the present invention. The reproduced burnt odor provides significant data required for development of an apparatus and a method for removing specific odor.
    Type: Application
    Filed: August 15, 2013
    Publication date: May 15, 2014
    Applicant: Hyundai Motor Company
    Inventors: Tae Hee Lee, Ji Wan Kim, Seok Man Kim
  • Publication number: 20140087471
    Abstract: Disclosed herein is a method for identifying the compounds contributing to urine odor emitting from an air conditioner, a method for artificially reproducing the detected urine odor, and preparing a corresponding urine odor composition. Through the analysis method of the present invention, the compounds contributing to the urine odor emitted from an air conditioner may be identified and quantified. The detected urine odor may be reproduced from a combination of the compounds identified by the analysis method of the present invention. The reproduced urine odor may provide meaningful data required for development of an apparatus and a method for removing specific odor.
    Type: Application
    Filed: December 14, 2012
    Publication date: March 27, 2014
    Applicant: Hyundai Motor Company
    Inventors: Tae Hee Lee, Ji Wan Kim, Seok Man Kim
  • Patent number: 8666666
    Abstract: Disclosed are means for monitoring the levels of air pollution in urban areas for the purpose of optimizing the conditions of airflow ventilation of buildings according to air pollution levels in their area. The invention supplies data in real time regarding local air pollution levels or relative levels, i.e. current air pollution levels in relation to previous ones. The disclosed system and method makes use of the fluctuations in air pollution levels in order to achieve optimal reduction of air pollution levels inside buildings. The system defines optimal times for ventilation in order to achieve a significant and persisting improvement of indoor air quality, in a routine manner, by using measurements of nondeterministic, continuous and effective fluctuations in air pollution levels at the surroundings of each building, specifically in locations which don't include monitoring stations.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: March 4, 2014
    Assignee: URECSYS—Urban Ecology Systems—Indoor Air Quality Management Ltd.
    Inventor: Nir Bassa
  • Patent number: 8664004
    Abstract: The present invention relates to the monitoring of contaminant concentrations in manufacturing processes that employ fluid purification devices. The invention provides a sensitive method for analyzing contaminant concentrations in a process fluid stream using purification material to adsorb contaminants contained therein over an entire process.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: March 4, 2014
    Assignee: Entegris, Inc.
    Inventors: Jeffrey J. Spiegelman, Daniel Alvarez, Jr., Allan Tram
  • Patent number: 8652409
    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: November 5, 2012
    Date of Patent: February 18, 2014
    Assignee: Valencell, Inc.
    Inventors: Steven Francis LeBoeuf, Jesse Berkley Tucker, Michael Edward Aumer
  • Patent number: 8524181
    Abstract: The invention relates to a device for the qualitative and/or quantitative determination of at least one component of a chemically reducible gas mixture, an exhaust gas catalytic converter utilizing such a device, a vehicle including such a catalytic converter, a process for preparing such a device, a process for monitoring the NOx emissions of a vehicle, and the use of such a device.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: September 3, 2013
    Assignee: Deutsches Zentrum Fuer Luft-und Raumfahrt e.V.
    Inventors: Bilge Saruhan-Brings, Mathias Christian Stranzenbach, Christoph Leyens
  • Publication number: 20130199269
    Abstract: A pre-concentration device is provided for a gas analysis system (10) for collecting molecular contamination in a vacuum environment (11). The pre-concentration device (13) comprises a hollow element (15) having an entrance opening (20) for receiving molecules from the vacuum environment (11) in a collection phase, a gas outlet for transferring collected molecules to a vacuum compatible detector or second preconcentration device in a transfer phase. The device has an inner wall for adsorbing molecules in the collection phase and desorbing molecules in the transfer phase. The device has a filler element (14) that is movable from a first position outside the hollow element in the collection phase to a second position inside the hollow element in the transfer phase which second position leaves open a transfer channel to the gas outlet along the inner wall.
    Type: Application
    Filed: October 20, 2011
    Publication date: August 8, 2013
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Ruud Johannes Theodorus Soers, Hugo Hubertus Knobel, Pieter Klaas De Bokx
  • Publication number: 20130186331
    Abstract: A method and apparatus are disclosed for testing and inspecting containers coated by means of a plasma treatment, e.g. plastic bottles, which are coated for instance with amorphous silicon oxide or carbon compounds. The containers are tested by a measuring device trace-gas-analytically, e.g. mass-spectrometrically, for undesired foreign substances, such as acetaldehyde and/or antimony, escaping from the container material after a plasma coating treatment.
    Type: Application
    Filed: December 27, 2012
    Publication date: July 25, 2013
    Applicant: KRONES AG
    Inventor: KRONES AG
  • Patent number: 8468872
    Abstract: A novel method of manufacturing a hydrogen sensor is disclosed. The method includes the steps of forming a thin film made of a transition metal or an alloy thereof on a surface of an elastic substrate, and forming a plurality of nanogaps in the thin film formed on the surface of the elastic substrate by applying a tensile force to the elastic substrate. The nanogaps are formed as the thin film is stretched in a direction in which the tensile force acts while being contracted in a direction perpendicular to the direction in which the tensile force acts when the tensile force is applied, and is contracted again in the direction in which the tensile force is released while being stretched again in the direction perpendicular to the direction in which the tensile force is released when the tensile force is released.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: June 25, 2013
    Assignee: Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Woo Young Lee, Jun Min Lee, Eun Yeong Lee
  • Publication number: 20130152783
    Abstract: A ductless fume hood suitable for the removal of various chemical materials including toxic and non-toxic gases, vapors, particles, dust and unpleasant odors from a fluid stream. The ductless fume hood uses electronic devices and software to enable real time monitoring of gas levels in parts per million.
    Type: Application
    Filed: February 12, 2013
    Publication date: June 20, 2013
    Inventor: Gregory J. Dobbyn
  • Publication number: 20130152667
    Abstract: Provided herein are methods and devices for sensing air quality. In some embodiments, materials from mitochondrial membranes, and/or material that is present in mitochondrial membranes can be used as a detection system to optically detect the presence and/or absence of various materials.
    Type: Application
    Filed: December 19, 2011
    Publication date: June 20, 2013
    Applicant: Empire Technology Development LLC
    Inventor: Michael Keoni Manion
  • Publication number: 20130145823
    Abstract: A system and method for taking a sample of hydrogen gas and conditioning that sample so that extremely low levels of contamination can be more accurately detected. Initially a sample of hydrogen gas is captured and isolated in a collection chamber. A hydrogen permeable membrane is provided having a first side and a second side. The first side of the hydrogen permeable membrane is exposed to the gas sample held within the collection chamber. The hydrogen gas contained within the gas sample begins to permeate through the hydrogen permeable membrane and exit the collection chamber. This causes the pressure of the gas sample within the collection chamber to decrease. Since contaminants remain in the collection chamber, the concentration of contaminants within the remaining sample increases exponentially. The residual pressure within the collection chamber is measured and converted into a contaminant level reading.
    Type: Application
    Filed: December 7, 2011
    Publication date: June 13, 2013
    Inventor: Peter R. Bossard
  • Publication number: 20130145824
    Abstract: Disclosed is a pollution measurement apparatus which measures a pollutant concentration and a pollutant component in gas, and more particularly a pollution measurement apparatus for easily exchanging a sensor, which can facilely exchange only desired sensors when it is required to exchange part of multiple sensors for sensing pollution.
    Type: Application
    Filed: October 5, 2012
    Publication date: June 13, 2013
    Applicant: Scientec Lab Center Co., LTD.
    Inventor: Scientec Lab Center Co., LTD.
  • Patent number: 8438905
    Abstract: A method for sensing analyte. The method includes the steps of sensing one or more parameters in reaction to the presence of one or more analytes and outputting a current therefrom in accordance with level of the sensed parameter by each of a plurality of sensors, each of the plurality of sensors being provided in one or more sensor array columns, selectively heating one or more of the sensor array columns by a heating element, and receiving an output current from one of the plurality of sensors from each of the plurality of sensor arrays by a Voltage Controlled Oscillator (VCO) arranged in a VCO array. The method further includes the steps of generating an output oscillation frequency by each VCO in accordance with the level of the received output current, and counting a number of oscillations over a predetermined time received from each of the plurality of VCOs in the VCO array by a plurality of counters arranged in a counter array.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: May 14, 2013
    Assignee: Sensorbit Systems, Inc.
    Inventors: Klaus Dimmler, Thomas Moss, III
  • Patent number: 8438904
    Abstract: An apparatus for sensing analyte is provided. The apparatus may include a plurality of sensor array columns, each sensor array column including a plurality of sensors, each sensor being adapted for sensing one or more parameters in reaction to the presence of one or more analytes and output a current therefrom in accordance with level of the sensed parameter, a heating element for selectively heating one or more of the sensor array columns, a Voltage Controlled Oscillator (VCO) array including a plurality of VCOs, each VCO adapted to receive an output current from one of the plurality of sensors from each of the plurality of sensor arrays and for and generating an output oscillation frequency in accordance with the level of the received output current, and a counter array including a plurality of counters, each counter adapted to receive an output from a corresponding VCO and count a number of oscillations over a predetermined time.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: May 14, 2013
    Assignee: Sensorbit Systems, Inc.
    Inventors: Klaus Dimmler, Thomas Moss, III
  • Publication number: 20130091928
    Abstract: Systems and methods for detection of airborne impurities in confined spaces are disclosed. In one embodiment, a detection system to detect impurities in a confined chamber comprises an emitter to emit radiation, at least one channel positioned proximate the emitter to receive radiation from the emitter at a first end of the channel, and a receiver positioned proximate a second end of the channel to receive radiation from the emitter, and generate a first signal in response to the radiation received from the emitter. Other embodiments may be described.
    Type: Application
    Filed: October 18, 2011
    Publication date: April 18, 2013
    Inventor: Tateh Wu
  • Patent number: 8336402
    Abstract: The present invention is directed to devices and methods in which one or more miniature synthetic jet actuators are integrated with a chemical fluidic sensor (ChemFET) to effect inhalation and exhalation of ambient gas samples and induce small scale mixing at the surface of the sensor. The fluidically integrated jet transports ambient gas or liquid into the jet/sensor assembly through integrated gas or liquid channels, impinges the sample gas or liquid on the sensing element, and finally ejects the sample gas or liquid back into the ambient gas or liquid. The response of the sensor in the presence of the active jet is compared to its response when the jet is inactive. The jet actuator directs entrained ambient gas or liquid toward the active surface of the sensor, and the impingement of sample gas or liquid onto the surface of the sensor results in faster response time. Other embodiments are also claimed and described.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: December 25, 2012
    Assignee: Georgia Tech Research Corporation
    Inventors: Ari Glezer, Isao Sasaki, Jiri Janata
  • 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: 8312759
    Abstract: Systems and methods for collecting portions of a target sample are disclosed herein. A method for detecting the presence and/or properties of a target sample can include selectively collecting a portion of a target sample with a sample collector and detecting, with the sample collector, the presence of one or more properties of the microscopic portion of the target sample. The method also includes analyzing, with the sample collector, the one or more properties of the microscopic portion of the target sample. Based on the analysis, the method further includes reporting, from the sample collector, a real-time indication of the analysis of the one or more properties of the target sample. The method can also include at least partially removing the microscopic portion of the target sample from the sample collector.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: November 20, 2012
    Assignee: McAlister Technologies, LLC
    Inventor: Roy Edward McAlister
  • 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
  • Patent number: 8278617
    Abstract: A cargo shipment security system includes a flexible body configured to completely enclose and contain cargo within an internal environment having a predetermined pressure. The system includes a sealable vacuum port disposed on and through the body and configured to couple with a vacuum source for creating a vacuum within the internal environment. The system includes one or more sealable ports disposed on and through the body, positioned to cause a turbulent flow through a predetermined volume of the internal environment of the body when the vacuum source is applied at the vacuum port and fluid is caused to enter the internal environment. The system includes one or more detectors positioned to intercept fluid flowing from the internal environment to an external environment outside the body, in such a way as to enable detection of the presence of a substance exiting from the internal environment.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: October 2, 2012
    Assignee: Sentina, Inc.
    Inventors: Jeffrey J. Garfinkle, John P. Lock
  • Patent number: 8272280
    Abstract: The present invention is a method and apparatus for contaminant detection in the food industry. Particularly, the method and apparatus involve collecting air samples containing aerosolized contaminate particles from a foodstuff and analyzing the sample for presence of a contaminate. Aerosol lab-on-a-chip and/or electronic nose devices are utilized for the detection of contaminant particles.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: September 25, 2012
    Inventor: Arthur T. Jones, Jr.
  • Patent number: 8220312
    Abstract: The invention is a method and system of screening the content of an enclosure, such as a cargo container, for the presence of one or more target substances, such as explosives or drugs, comprising drawing air from the enclosure and passing the drawn air across at least one sampling card having a coating configured to absorb/adsorb the one or more target substances and thereafter analyzing the sampling card to determine if the coating has absorbed/adsorbed one or more target substances. The system embodiment includes a vacuum source, a conduit coupled to the vacuum source and a sampling card holder disposed along the conduit. The sampling card holder removably holds at least one sampling card having a coating thereon configured to absorb/adsorb the one or more target substances, so that air drawn into the conduct from the enclosure passes across the at least one sampling card.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: July 17, 2012
    Assignee: Teknoscan Systems, Inc.
    Inventor: Sabatino Nacson
  • Patent number: 8190367
    Abstract: Disclosed are means for monitoring the levels of air pollution in urban areas for the purpose of optimizing the conditions of airflow ventilation of buildings according to air pollution levels in their area. The invention supplies data in real time regarding local air pollution levels or relative levels, i.e. current air pollution levels in relation to previous ones. The disclosed system and method makes use of the fluctuations in air pollution levels in order to achieve optimal reduction of air pollution levels inside buildings. The system defines optimal times for ventilation in order to achieve a significant and persisting improvement of indoor air quality, in a routine manner, by using measurements of nondeterministic, continuous and effective fluctuations in air pollution levels at the surroundings of each building, specifically in locations which don't include monitoring stations.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: May 29, 2012
    Assignees: G.R.G. Patents Ltd.
    Inventor: Nir Bassa
  • Patent number: 8181505
    Abstract: A method is proposed for characterizing a totality of particles. The method can be used in particular for characterizing microparticular or nanoparticular aerosols. The method comprises the following steps: a) in a classification step, a class of the totality is selected, wherein the particles of the selected class have a prespecified mobility dm; b) in a counting step, a number N of the particles of the selected class is determined; c) in a charge determination step, a charge Q of the particles of the selected class is determined; and d) in an evaluation step, at least one morphological parameter is determined from the charge Q, the number N and the mobility dm, wherein the morphological parameter comprises at least one item of information about an agglomerate state of the particles.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: May 22, 2012
    Assignees: BASF SE, Regents of The University of Minnesota
    Inventors: Michael Mertler, Bernd Sachweh, Markus Linsenbühler, Michael Schäfer, David Y. H. Pui, Heinz Fissan, Jing Wang, Weon Gyu Shin
  • Publication number: 20120118044
    Abstract: There are disclosed a method for managing a pollution prevention facility and a system for effectively managing the pollution prevention facility which can exhaust pollutants, and a system thereof. A method for managing a pollution prevention facility includes a first measuring step of measuring pollutants before a pollution prevention facility treats a pollutant outlet; a second measuring step of measuring the amount of pollutants after the pollution prevention facility treats the pollutant outlet; and a managing step of managing an exchange period of a filling material provided in the pollution prevention facility.
    Type: Application
    Filed: December 3, 2009
    Publication date: May 17, 2012
    Applicant: SCIENTEC LAB CENTER CO., LTD.
    Inventors: II Hwan Choi, Han Soo Kim, Sun Tae Kim, Ik Jae Lee
  • Patent number: 8176768
    Abstract: A particulate matter detection device 100 includes a first electrode 1 whose one surface is covered with an inter-electrode dielectric material 4; a second electrode 2 disposed on the side of the one surface of the first electrode 1, to perform the discharge of electricity by a voltage applied between the first electrode 1 and the second electrode; and a pair of measurement electrodes 5, 15 disposed on the surface of the inter-electrode dielectric material 4 so as to face each other; characteristic measurement means 3 for measuring electric characteristics between the pair of measurement electrodes 5 and 15; and particulate matter amount calculation means 13 for obtaining the amount of the particulate matter 11 collected by the surface of the inter-electrode dielectric material 4, based on the change amount of the electric characteristics.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: May 15, 2012
    Assignees: NGK Insulators, Ltd., Honda Motor Co., Ltd.
    Inventors: Atsuo Kondo, Takeshi Sakuma, Takashi Egami, Tatsuya Okayama, Masanobu Miki, Keizo Iwama
  • Publication number: 20120096927
    Abstract: A method includes detecting a presence of a fouling layer in an exhaust gas recirculation cooler of an internal combustion engine. The flow of a coolant through the exhaust gas recirculation cooler is stopped for a predetermined period of time while the engine exhaust gas flows through the exhaust gas recirculation cooler. The flow of an engine exhaust gas exiting from the exhaust gas recirculation cooler is diverted to at least one of a turbine of a turbocharger, and an exhaust pipe of the internal combustion engine. The fouling layer from the exhaust gas recirculation cooler is expelled along with the engine exhaust gas exiting the exhaust gas recirculation cooler.
    Type: Application
    Filed: October 25, 2010
    Publication date: April 26, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventor: Sebastian Walter Freund
  • Publication number: 20120098360
    Abstract: A system includes an electrical generator comprising a stator, a rotor, and a gas coolant path through an interior of the electrical generator and at least one fiber optic purity sensor configured to sense a gas purity of a flow of a gas coolant through the gas coolant path.
    Type: Application
    Filed: October 22, 2010
    Publication date: April 26, 2012
    Applicant: General Electric Company
    Inventors: Matthew Robert Martin, Anthony James George, Jeffrey James Andritz, James Daniel Antalek, James Thomas Clark
  • Patent number: 8161797
    Abstract: A device for use with a detection means and a solvent source for sampling low volatility hazardous chemicals within a sample matrix is comprised of a sonicator having a probe for providing mechanical agitation to the sample matrix; means for transporting solvent gas from the solvent source to the sample matrix; means for transporting sample gas from the sample matrix to the detection means; and a heating element for heating the sample gas, solvent gas, and sample matrix. The device may include a thermocouple for providing a temperature reading. It also may include a plurality of interchangeable probe tips of different shapes.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: April 24, 2012
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: James A. Genovese, Edward M. Rychwalski, Stephen J. Comaty
  • 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: 8113035
    Abstract: Disclosed is a method for detecting hydrogen in steel. According to the method, hydrogen contained in steel is transferred into and preferably concentrated in at least one second material. Representative second materials include metals such as vanadium, niobium, tantalum, and their alloys. Upon transfer to the second material, the hydrogen is detected and preferably quantitatively determined. The data obtained with the method enables conclusions to be drawn about the presence of hydrogen in steel. Preferably, the concentration of hydrogen in steel is quantitatively determined from information obtained about the presence of hydrogen in the second material.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: February 14, 2012
    Inventors: Reiner Kirchheim, Peter-Joachim Wilbrandt, Jurgen Gegner