Gas Chromatography Patents (Class 73/23.35)
  • Patent number: 10641750
    Abstract: This method allows for prediction of subsurface fluid properties (e.g., phase or API gravity) using gas chromatogram data of a small-volume extract. Small volume equates to microliter scale volume (or milligram scale weight) from a subsurface rock sample, where a fluid test may not be available for analysis. The method may also be applied to petroleum liquid samples where drilling fluid or other contaminants preclude accurate direct property measurement. Gas chromatographic data is calibrated to measured petroleum properties; preferably local oils from the same petroleum system, however, a general global calibration can also be used.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: May 5, 2020
    Assignee: ConocoPhillips Company
    Inventors: Albert G. Holba, Russell L. Bone, Bradley J. Huizinga, James R. Vasquez, Sean M. Stokes
  • Patent number: 10641748
    Abstract: The invention relates to a method, to a device, and to the use of a method for the gas-chromatic separation and determination of volatile substances in a carrier gas by means of a chromatographic separating capillary (1), wherein the separating capillary and/or an enveloping capillary (2) surrounding the separating capillary (1) is electrically conductive and is heated with current in the form of a resistance heater and is cooled by a forced convective flow by means of a fluid in the form of a gradient flow field in such a way that a continuous temperature gradient arises over the length of the separating capillary.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: May 5, 2020
    Inventor: Peter Boeker
  • Patent number: 10598678
    Abstract: Automated fluid handling system comprising a housing and two or more fluid handling units arranged as interchangeable modular components with an external fluidics section and an internal non fluidics section, and wherein the housing comprises a liquid handling panel with two or more of component positions for receiving said interchangeable modular components such that the external fluidics section is separated from the non fluidics section by the liquid handling panel.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: March 24, 2020
    Assignee: GE HEALTHCARE BIO-SCIENCES AB
    Inventors: Johan Blomberg, Mats Lundkvist
  • Patent number: 10591450
    Abstract: A liquid sample introduction system for an ion source which ionizes a liquid sample by supplying the liquid sample to an ionization probe in an ion source and blowing an atomization-promoting gas at the liquid sample exiting from the tip of the ionization probe, the system including: a hermetically closable liquid sample container for holding a liquid sample; a liquid-supply-gas passage having one end connected to a point in a passage for an atomization-promoting gas leading to the ion source, and the other end connected to a space above a liquid level in the liquid sample container; a sample supply passage having one end connected to a space below the liquid level in the liquid sample container and the other end connected to the ionization probe; and a passage-switching unit in the sample supply passage for switching the sample supply passage between the communicating state and the closed state.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: March 17, 2020
    Assignee: SHIMADZU CORPORATION
    Inventor: Kazuma Maeda
  • Patent number: 10502721
    Abstract: A temperature controller for simultaneously controlling the temperatures of a plurality of heating elements for use in chromatographic analysis including columns, detectors, valves, transport lines and other components.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: December 10, 2019
    Assignee: Valco Instruments Company, L.P.
    Inventors: Stanley D. Stearns, Huamin Cai, Chris Bishop, Robert Simpson, Chris S. Cowles, Dale Ashworth, Douglas Dailey
  • Patent number: 10422576
    Abstract: A gas sensor includes a plurality of detectors discolored by reacting with different predetermined target gases, such that the gas sensor independently measures the amount of each target gas. A refrigerator for deciding a type and state of target food contained in a container by sensing a color change of a gas sensor mounted to the container including the target food, and a method for controlling the gas sensor are disclosed. The gas sensor for detecting a plurality of target gases includes a base and a plurality of detectors provided at the base. The detectors respectively detect different target gases, and each detector is discolored by reacting with each predetermined target gas.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: September 24, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jang Pyo Park, Youn Joo Song, Yong Won Jeong, Hyun Joo Jung
  • Patent number: 10330651
    Abstract: A thermal conductivity detector that causes a fluid to come into contact with the surface of a heated temperature sensing element, that causes the temperature of the temperature sensing element to change according to the thermal conductivity of the fluid, and that detects the fluid based on a change in the electrical resistance of the temperature sensing element at that time or on a change in the value of a current to be applied to the temperature sensing element is provided. The thermal conductivity detector includes a cell space where the temperature sensing element is accommodated and to which a fluid is introduced and from which the fluid is discharged, a buffer space that is connected to a fluid outlet of the cell space, and a discharge channel that is connected to a fluid outlet of the buffer space.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: June 25, 2019
    Assignee: SHIMADZU CORPORATION
    Inventors: Yuji Nakama, Shigeaki Shibamoto, Kazunori Takahashi, Minoru Kashihara
  • Patent number: 10309939
    Abstract: Certain embodiments described herein are directed to chromatography systems that include a microfluidic device. The microfluidic device can be fluidically coupled to a switching valve to provide for selective control of fluid flow in the chromatography system. In some examples, the microfluidic device may include a charging chamber, a bypass restrictor or other features that can provide for added control of the fluid flow in the system. Methods of using the devices and methods of calculating lengths and diameters to provide a desired flow rate are also described.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: June 4, 2019
    Assignee: PerkinElmer Health Sciences, Inc.
    Inventor: Andrew Tipler
  • Patent number: 10295512
    Abstract: A multi-lumen mixing device is described. The multi-lumen mixing device includes a mixer body having an inlet portion and an outlet portion. The multi-lumen mixing device also includes an array of capillary channels within the mixer body, in which each capillary channel has approximately a same length. An inlet for each of the capillaries is proximate to the inlet portion and an outlet for each of the capillaries is proximate to the outlet portion. The array of capillary channels has at least three different cross-sectional areas.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: May 21, 2019
    Assignee: Dionex Corporation
    Inventors: Christopher A. Pohl, Douglas M. Jamieson
  • Patent number: 9772306
    Abstract: The present invention discloses a gas analyzing apparatus and a sampling device. The gas analyzing apparatus includes a sampling device and an ion mobility spectrum analysis device. The sampling device includes a multi-capillary column and a temperature control system. The ion mobility spectrum analysis device is adapted for analyzing a gas leaded-in by the sampling device and includes a reaction cavity for reaction between sample molecules and reaction ions, the cavity having a sampling opening for leading-in of the gas. An outlet end of the multi-capillary column is inserted directly into the cavity of the ion mobility spectrum analysis device through the sampling opening of the ion mobility spectrum analysis device.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: September 26, 2017
    Assignee: NUCTECH COMPANY LIMITED
    Inventors: Qingjun Zhang, Yuanjing Li, Zhiqiang Chen, Ziran Zhao, Yinong Liu, Yaohong Liu, Qiufeng Ma, Huishao He, Weiping Zhu, Xiang Zou, Jianping Chang, Song Liang
  • Patent number: 9751040
    Abstract: Certain embodiments described herein are directed to chromatography systems that include a microfluidic device configured to provide three-way switching or switching between three or more inputs or outputs. The microfluidic device can be fluidically coupled to one or more switching valves to provide for selective control of fluid flow in the chromatography system.
    Type: Grant
    Filed: August 4, 2014
    Date of Patent: September 5, 2017
    Assignee: PerkinElmer Health Sciences, Inc.
    Inventor: Andrew Tipler
  • Patent number: 9518904
    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: Grant
    Filed: July 1, 2014
    Date of Patent: December 13, 2016
    Inventors: Peter R. Bossard, Luis Breziner, Paolo Moreschini
  • Patent number: 9170241
    Abstract: A gas chromatography (GC) system comprises: a sample injector adapted to receive a liquid sample into an interior cavity thereof and to volatilize the liquid sample; a GC column configured to receive the volatilized sample from the sample injector; a carrier gas inlet line fluidically coupled to a gas inlet port of the sample injector; a septum purge vent line fluidically coupled to a first gas outlet port of the sample injector; a split-flow vent line fluidically coupled to a second gas outlet port of the sample injector; and a vacuum system configured to apply vacuum to the septum purge vent line, the split-flow vent line and the interior cavity of the sample injector. Alternatively, the vacuum system may be coupled to a vacuum port of the sample injector. A separate flow of helium gas may be supplied to an inlet of the GC column.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: October 27, 2015
    Assignee: Thermo Finnigan LLC
    Inventor: Edward B. McCauley
  • Patent number: 9134225
    Abstract: Apparatus, systems, and methods may operate to discharge a plurality of spike fluids into a fluid flowing in a flow channel, transmit energy to the fluid using an energy source coupled to the flow channel, receive the energy modified by the fluid as photometric energy, convert the photometric energy to at least one photometric signal, compare the at least one photometric signal with a reference signal to determine at least one photometric property of the fluid, and determine at least one component of the fluid using the at least one photometric property supplied to a generalized standard addition method (GSAM). Additional apparatus, systems, and methods, including the use of multivariate curve resolution (MCR) to refine GSAM results, are disclosed.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: September 15, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Christopher M. Jones, Michael T. Pelletier
  • Patent number: 9136084
    Abstract: Micro discharge devices, methods, and systems are described herein. One device includes a non-conductive material, a channel through at least a portion of the non-conductive material having a first open end and a second open end, a first electrode proximate to a first circumferential position of the channel between the first open end and the second open end, a second electrode proximate to a second circumferential position of the channel between the first open end and the second open end, a discharge region defined by a portion of the channel between the first electrode and the second electrode, an optical emission collector positioned to receive an optical emission from the discharge region, and a discharge shielding component between the discharge region and the optical emission collector.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: September 15, 2015
    Assignee: Honeywell International Inc.
    Inventors: Teresa M. Marta, Fouad Nusseibeh
  • Publication number: 20150090595
    Abstract: A fitting (200) for providing a fluid connection between a capillary (202) and a fluidic conduit (204) of a fluidic component (30), the fitting (200) comprising a male piece (240) and a female piece (250) for connection with the male piece (240), wherein the male piece (240) comprises a housing (252) with a capillary reception (212) configured for receiving the capillary (202), wherein a part of the capillary (202) being received in the capillary reception (212) is circumferentially covered by a sleeve (214), an elastic biasing mechanism (206) being arranged at least partially within the housing (252), being configured for biasing the capillary (202) against the female piece (250) and being supported by the sleeve (214), and a locking mechanism (208) being arranged at least partially within the housing (252) and being configured for locking the capillary (202) to the fitting (200).
    Type: Application
    Filed: November 15, 2012
    Publication date: April 2, 2015
    Applicant: aGILENT TECHNOLOGIES , INC.
    Inventors: Claus Lueth, Darijo Zeko
  • Patent number: 8952822
    Abstract: A smoke alarm comprises smoke detection circuitry for detecting smoke and generating a detection signal responsive thereto. Proximity detection circuitry generates a proximity detection signal responsive to detection of an object within in a selected distance of the smoke alarm. Alarm generation circuitry generates an audible alarm responsive to the detection signal. The audible alarm may be deactivated for a predetermined period of time responsive to at least one proximity detection signal.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: February 10, 2015
    Assignee: Google Inc.
    Inventor: Wayne T. Holcombe
  • Patent number: 8950237
    Abstract: A gas analyzer system to determine the concentration of gases in an automotive air conditioning system comprising: an infrared multi-detector device equipped with a gas analysis chamber; an emitter source emitting infrared radiation in the analysis chamber; infrared multi-detectors generating an electrical measurement quantity based on the absorption of radiation by the gas; a suction pump creating a depression inside the analysis chamber; and an electronic control unit determining a main automotive refrigerant gas concentration and the contaminant gases concentration, based on electrical measurement quantities provided by the multi-detectors and a reference electrical quantity. The control unit controls the pump to suck the gases in the analysis chamber until a condition of absence of gases is achieved, wherein the internal pressure of the chamber reaches a minimum pressure, and then determines the reference electrical quantity, based on the electrical quantity generated in the condition of absence of gases.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: February 10, 2015
    Assignee: Texa S.p.A.
    Inventors: Manuele Cavalli, Roberto Giudici
  • Patent number: 8943872
    Abstract: The present invention provides a gas chromatography—inverse gas chromatography combined analysis device, which includes a gas chromatography column and an inverse gas chromatography column, an input end of the gas chromatography column is connected to a sample feeder, an output end of the gas chromatography column is connected to an input end of the inverse gas chromatography column, the output end of the gas chromatography column is further connected to a first detector, the input end of the inverse gas chromatography column is further connected to a carrier gas tube, an output end of the inverse gas chromatography column is connected to a second detector, and the first detector and the second detector are both connected to a signal collector.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: February 3, 2015
    Assignee: Shanghai Tobacco Group Co., Ltd.
    Inventors: Baizhan Liu, Wenjuan Wang, Saijing Zheng, Da Wu
  • Publication number: 20150000374
    Abstract: The present invention includes a method for distinguishing between a natural source of deep gas and gas leaking from a CO2 storage reservoir at a near surface formation comprising: obtaining one or more surface or near surface geological samples; measuring a CO2, an O2, a CH4, and an N2 level from the surface or near surface geological sample; determining the water vapor content at or above the surface or near surface geological samples; normalizing the gas mixture of the CO2, the O2, the CH4, the N2 and the water vapor content to 100% by volume or 1 atmospheric total pressure; determining: a ratio of CO2 versus N2; and a ratio of CO2 to N2, wherein if the ratio is greater than that produced by a natural source of deep gas CO2 or deep gas methane oxidizing to CO2, the ratio is indicative of gas leaking from a CO2 storage reservoir.
    Type: Application
    Filed: June 27, 2014
    Publication date: January 1, 2015
    Inventors: Katherine Romanak, Philip C. Bennett
  • Patent number: 8883508
    Abstract: In some embodiments, apparatus and systems, as well as methods, may operate to draw a formation fluid sample into a sampling port included in a down hole tool, to vaporize some part of the fluid sample to substantially fill an injection port with a gas phase, to differentiate gas components in the gas phase to provide differentiated gas components along a concentration gradient, to detect the differentiated gas components, and to determine a fingerprint of the differentiated gas components. Other apparatus, systems, and methods are disclosed.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: November 11, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Christopher M. Jones, Michael T. Pelletier
  • Patent number: 8871149
    Abstract: This invention is related to a gas chromatograph wherein more substitutable modules are foreseen, in particular injector modules and/or detector modules, as well as one embodiment in an oven module. Each module is insertable in a seat of the gas chromatograph mainframe with fast connections of its electronic and pneumatic means to corresponding outlets on said mainframe. Each module has its own heating element.
    Type: Grant
    Filed: April 6, 2009
    Date of Patent: October 28, 2014
    Assignee: Thermo Fisher Scientific S.p.A.
    Inventors: Giacinto Zilioli, Stefano Pelagatti, Paolo Magni
  • Patent number: 8845794
    Abstract: A non-seizing taper used for purged capillary tubing connections in gas chromatography that stops capillary tubing at a predictable position within the taper during installation and maintains space for gas to flow past the capillary tubing. The disclosed taper is an improved component of commonly used purged devices such as inlet liners and purged unions. The arresting aspect of the taper simplifies the process of capillary tubing installation while ensuring that the tubing will reproducibly be positioned in the taper. One or more features of the taper prevent tubing from seizing within the taper so that the devices can be reused and ensure that there is open space for a portion of gas to flow around and past the tubing. The angle of the taper, the dimensions of the taper, and the nature of the features within the taper can be adjusted to meet specific performance, usability and/or manufacturability requirements.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: September 30, 2014
    Inventor: Matthew Spangler Klee
  • Patent number: 8841611
    Abstract: A gas chromatograph-mass spectrometer (GC-MS) system includes a multi-capillary GC column coupled to a mass analyzer through an ionization interface. The ionization interface includes an ionization device and an ion guide configured for receiving a high-capacity gas-sample flow from the GC column and transmitting a compressed ion beam to the mass analyzer. The ion beam may be converging.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: September 23, 2014
    Assignee: Agilent Technologies, Inc.
    Inventors: Gangqiang Li, Maozi Liu
  • Publication number: 20140274660
    Abstract: A fabric phase sorptive extractor (FPSE) is a sampling device where a flexible fabric is coated with at least one sol-gel derived film that includes at least two of a metal oxide portion, a siloxy portion, and an organic portion, where the gel has at least some amorphous portions. The FPSE is flexible such that it can be used in an extended form or draped over a solid surface to contact a gaseous, liquid, or solid environment and can be manipulated for placement in a container where the absorbed analyte can be removed from the FPSE for instrumental analysis. The FPSE can have specific functionalities that bind to specific analytes or can provide a general sorbent medium for extraction of a wide range of analytes, such that the sampling device can be employed for sampling analytes with biological, environmental, food, pharmaceutical, bio-analytical, clinical, forensic, toxicological, national security, public health, and/or safety implications.
    Type: Application
    Filed: March 17, 2014
    Publication date: September 18, 2014
    Applicant: THE FLORIDA INTERNATIONAL UNIVERSITY BOARD OF TRUSTEES
    Inventors: Abuzar Kabir, Kenneth G. Furton
  • Publication number: 20140260534
    Abstract: An improved biocompatible filter for use in liquid chromatography systems such as HPLC or UHPLC The present disclosure addresses the problem of particles bypassing a filter in a liquid chromatography application by design features in the interface between the frit filter and ring that form an improved seal between the ring and frit and prevent leakage around the filter in high measure chromatography. Design features also include frit filters with an internal particle size gradient for pre-column separation activity during filtration.
    Type: Application
    Filed: March 17, 2014
    Publication date: September 18, 2014
    Applicant: IDEX Health & Science LLC
    Inventors: Mark Hahn, Eric Beemer
  • Publication number: 20140241394
    Abstract: A rechargeable battery is externally heated to induce thermal runaway, and material expelled from the battery is analyzed.
    Type: Application
    Filed: February 24, 2014
    Publication date: August 28, 2014
    Applicant: The Boeing Company
    Inventor: Nels A. Olson
  • Patent number: 8808629
    Abstract: The invention relates to a transfer unit for analysis devices, containing a tube-shaped assembly which can be heated by an electric heater in a programmed manner, a tube (6) which is arranged in the sample chamber (18) and into which the end of a gas chromatographic separating column can be inserted at the end of said tube, and means for introducing carrier gas into the tube (6), said transfer unit being characterized in that a temperature sensor (8) is arranged in the ring chamber (5) between the inner wall of the assembly and the evaporator tube (6). The transfer unit can be a sample introduction device for a gas chromatograph having a sample introduction head (18), and the assembly can be a sample introduction chamber in which an evaporator tube is provided, wherein the end of a gas chromatographic separating column can be inserted into the end facing away from the sample introduction head (18).
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: August 19, 2014
    Assignee: Joint Analytical Systems GmbH
    Inventor: Joachim Gerstel
  • Publication number: 20140208825
    Abstract: This method allows for prediction of subsurface fluid properties (e.g., phase or API gravity) using gas chromatogram data of a small-volume extract. Small volume equates to microliter scale volume (or milligram scale weight) from a subsurface rock sample, where a fluid test may not be available for analysis. The method may also be applied to petroleum liquid samples where drilling fluid or other contaminants preclude accurate direct property measurement. Gas chromatographic data is calibrated to measured petroleum properties; preferably local oils from the same petroleum system, however, a general global calibration can also be used.
    Type: Application
    Filed: August 2, 2013
    Publication date: July 31, 2014
    Applicant: CONOCOPHILLIPS COMPANY
    Inventors: Albert G. HOLBA, Russell L. BONE, Bradley J. HUIZINGA, James R. VASQUEZ, Sean M. STOKES
  • Patent number: 8784543
    Abstract: A non-seizing taper used for purged capillary tubing connections in gas chromatography that stops capillary tubing at a predictable position within the taper during installation and maintains space for gas to flow past the capillary tubing. The disclosed taper is an improved component of commonly used purged devices such as inlet liners and purged unions. The arresting aspect of the taper simplifies the process of capillary tubing installation while ensuring that the tubing will reproducibly be positioned in the taper. One or more features of the taper prevent tubing from seizing within the taper so that the devices can be reused and ensure that there is open space for a portion of gas to flow around and past the tubing. The angle of the taper, the dimensions of the taper, and the nature of the features within the taper can be adjusted to meet specific performance, usability and/or manufacturability requirements.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: July 22, 2014
    Inventor: Matthew Spangler Klee
  • Publication number: 20140196520
    Abstract: Micro discharge devices, methods, and systems are described herein. One device includes a non-conductive material, a channel through at least a portion of the non-conductive material having a first open end and a second open end, a first electrode proximate to a first circumferential position of the channel between the first open end and the second open end, a second electrode proximate to a second circumferential position of the channel between the first open end and the second open end, a discharge region defined by a portion of the channel between the first electrode and the second electrode, an optical emission collector positioned to receive an optical emission from the discharge region; and a discharge shielding component between the discharge region and the optical emission collector.
    Type: Application
    Filed: January 17, 2013
    Publication date: July 17, 2014
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Teresa M. Marta, Fouad Nusseibeh
  • Patent number: 8776576
    Abstract: A gas chromatography device adapted for detecting leakage of hydrogen gas without using an air pump and long piping is provided. The gas chromatography device includes: a column oven having a housing, a column disposed in the housing, and a heater heating air in the housing; a sample vaporization chamber supplying a sample to an inlet end of the column; a carrier gas supply section supplying a carrier gas to the sample vaporization chamber; a detector connected to an outlet end of the column; a controller controlling the heater and the carrier gas supply section; and a hydrogen gas detecting sensor. The carrier gas is hydrogen gas. A through hole is formed in the housing and a material that allows hydrogen to pass through but does not transmit heat is disposed in the through hole. The hydrogen gas detecting sensor is disposed near the through hole outside the housing.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: July 15, 2014
    Assignee: Shimadzu Corporation
    Inventors: Masayuki Okada, Yasunori Terai
  • Publication number: 20140192343
    Abstract: An efficient absorption spectroscopy system is provided. The spectroscopy system may be configured to measure solid, liquid or gaseous samples. Vacuum ultra-violet wavelengths may be utilized. Some of the disclosed techniques can be used for detecting the presence of trace concentrations of gaseous species. A preferable gas flow cell is disclosed. Some of the disclosed techniques may be used with a gas chromatography system so as to detect and identify species eluted from the column. Some of the disclosed techniques may be used in conjunction with an electrospray interface and a liquid chromatography system so as to detect and identify gas phase ions of macromolecules produced from solution. Some of the disclosed techniques may be used to characterize chemical reactions. Some of the disclosed techniques may be used in conjunction with an ultra short-path length sample cell to measure liquids.
    Type: Application
    Filed: March 11, 2013
    Publication date: July 10, 2014
    Applicant: VUV ANALYTICS, INC.
    Inventor: VUV ANALYTICS, INC.
  • Publication number: 20140165700
    Abstract: This invention relates to a method for diagnosing a subject's increased risk of progressing to Alzheimer disease by measuring the concentration of a metabolite and comparing them to respective mean concentration of healthy subjects. According to the invention the increased risk of progressing to Alzheimer's disease by a subject with mild cognitive impairment can be diagnosed without invasive technology.
    Type: Application
    Filed: June 8, 2012
    Publication date: June 19, 2014
    Applicants: ITA-SUOMEN YLIOPISTO, TEKNOLOGIAN TUTKIMUSKESKUS VTT
    Inventors: Matej Oresic, Hilkka Soininen, Tuulia Hyotylainen
  • Patent number: 8754775
    Abstract: A smoke alarm comprises smoke detection circuitry for detecting smoke and generating a detection signal responsive thereto. Proximity detection circuitry generates a proximity detection signal responsive to detection of an object within in a selected distance of the smoke alarm. Alarm generation circuitry generates an audible alarm responsive to the detection signal. The audible alarm may be deactivated for a predetermined period of time responsive to at least one proximity detection signal.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: June 17, 2014
    Assignee: Nest Labs, Inc.
    Inventor: Wayne T. Holcombe
  • Patent number: 8742331
    Abstract: Imidazolium-based dicationic liquid salts and methods of using such imidazolium-based dicationic liquid salts in techniques such as ESI-MS are provided.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: June 3, 2014
    Assignee: Sigma-Aldrich, Co.
    Inventor: Daniel W. Armstrong
  • 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
  • Patent number: 8721768
    Abstract: Certain embodiments described herein are directed to chromatography systems that include a microfluidic device. The microfluidic device can be fluidically coupled to a switching valve to provide for selective control of fluid flow in the chromatography system. In some examples, the microfluidic device may include a charging chamber, a bypass restrictor or other features that can provide for added control of the fluid flow in the system. Methods of using the devices and methods of calculating lengths and diameters to provide a desired flow rate are also described.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: May 13, 2014
    Assignee: PerkinElmer Health Sciences, Inc.
    Inventor: Andrew Tipler
  • Publication number: 20140102171
    Abstract: A process analytic instrument and tube carrier are provided. The process analytic instrument includes an analytic module having a plurality of inlets and configured to analyze a process gas. The tube carrier is coupled to the analytic module and has a shell defining an interior therein. A plurality of tubes terminates in the tube carrier. At least one of the tubes has an integral flame-quenching pathway and the interior of the shell proximate the integral flame-quenching pathway is filled with a solid.
    Type: Application
    Filed: March 14, 2013
    Publication date: April 17, 2014
    Applicant: Rosemount Analytical Inc.
    Inventors: Edward J. Bailey, Jason P. Pratt, Vicente Ramirez, JR.
  • Patent number: 8695401
    Abstract: The disclosure describes a substrate with a fluid-handling assembly coupled to the substrate, the fluid-handling assembly including a plurality of fluid-handling components removably coupled to the substrate and removably coupled to each other. The plurality of fluid handling components includes a gas chromatograph having a fluid inlet and a fluid outlet, and a detector array having a fluid inlet and a fluid outlet, wherein the fluid inlet of the detector array is fluidly coupled to the fluid outlet of the gas chromatograph. A control circuit is communicatively coupled to at least one of the plurality of fluid-handling components, and a readout circuit communicatively coupled to the detector array and to the control circuit. Other embodiments are disclosed and claimed.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: April 15, 2014
    Assignee: TricornTech Corporation
    Inventors: Li-Peng Wang, Chien-Lin Huang, Tsung-Kuan A. Chou
  • Patent number: 8683846
    Abstract: A gas chromatograph operable to analyze a sample gas comprising a carrier gas and components. The gas chromatograph includes a bridge circuit with a sample sensor connected therein. A servo amplifier is connected to the bridge circuit and is operable to maintain the sample sensor at a constant temperature. An output of the servo amplifier is digitized and is used to quantify the components in the sample gas.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: April 1, 2014
    Assignee: ABB Inc.
    Inventors: Vince B. Hadley, Rodney Wayne Dilbeck
  • Publication number: 20140054502
    Abstract: Disclosed herein is a method for identifying the compounds contributing to a pungent odor from an air conditioner, a method for artificially reproducing the pungent odor, and preparing a corresponding pungent odor composition. Through the analysis method of the present invention, the compounds contributing to the pungent odor from an air conditioner may be identified and quantified. The pungent odor may be reproduced from a combination of the compounds identified by the analysis method of the present invention. The reproduced pungent odor may provide significant data required for development of an apparatus and a method for removing specific odors.
    Type: Application
    Filed: November 30, 2012
    Publication date: February 27, 2014
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Tae Hee Lee, Ji Wan Kim
  • Patent number: 8635901
    Abstract: Embodiments of the present invention provide columns for use in gas chromatography and methods of making and using such columns. The present invention provides a folded passage column: a fluid passage formed by joining a first channel in a first surface through a slot to a second channel in a second surface. In some embodiments, a folded passage column repeats that building block, joining a plurality of channels in a first surface with a plurality of channels in a second surface such that the channels link to form a continuous passage.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: January 28, 2014
    Assignee: Defiant Technologies, Inc.
    Inventors: Douglas R. Adkins, Patrick Lewis
  • Patent number: 8636957
    Abstract: The present disclosure relates to a spirally wrapped chromatographic structure, a system incorporating such structure and a method of providing such structure. The structure may include an absorber layer having a first surface and a second surface, wherein one or a plurality of channels are defined in the first surface. The structure may also include a support layer having a first surface and a second surface, the first surface of the support layer disposed on the second surface of the absorber layer, wherein the absorber layer and the support layer comprise a spiral configuration such that at least a portion of the first surface of the absorber layer contacts at least a portion of the second surface of the support layer.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: January 28, 2014
    Assignee: Southwest Research Institute
    Inventors: Stephen Thomas Wellinghoff, Kent Edward Coulter
  • Patent number: 8616051
    Abstract: The method includes extraction of gases contained in a mud, in order to obtain a gas stream of extracted gases containing hydrocarbons to be analyzed and at least one parasitic compound. The method includes transporting the gas stream through a transport line (54) and passing it through a separation column (121) in order to separate the hydrocarbons to be analyzed according to their elution times in the separation column (121). The parasitic compound is likely to have an elution time in the separation column (121) between the elution time for the first hydrocarbon to be analyzed and the elution time of the final hydrocarbon to be analyzed. The method includes passing the gas stream over a surface (141) for chemical and/or physical interaction with the parasitic compound in order to selectively retain the or each parasitic compound without retaining the hydrocarbons to be analyzed.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: December 31, 2013
    Assignee: Geoservices Equipments
    Inventors: Farouk Kimour, Jerome Breviere
  • Patent number: 8608912
    Abstract: Embodiments of extraction unit and an analysis method are provided. In one embodiment, the analysis method includes the steps of providing a feed stream and a species-selective solvent to the distillation column, drawing a vapor sample from the distillation column, condensing the vapor sample, and analyzing at least a portion of the condensed vapor sample.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: December 17, 2013
    Assignee: UOP LLC
    Inventors: Jason L. Noe, Ian Horn, Lars Sullivan, Bruce R. Beadle, Edward M. Casey, James W. Harris
  • Patent number: 8592755
    Abstract: A method of operating a switching valve of a GC-MS apparatus is provided with installing a sample injector; connecting a first capillary column downstream of the sample injector; installing a heart-cutting unit downstream of the first capillary column; installing a first interconnecting column and a second capillary column to the heart-cutting unit respectively; connecting a switching valve to the heart-cutting unit via a first interconnecting column and a second capillary column respectively wherein the switching valve includes a plurality of ports; connecting the switching valve to an MS via a second interconnecting column; and switching ports to create different sample loops for passing compounds from the heart-cutting unit to the MS or passing compounds from the heart-cutting unit to the discharge column to be purged.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: November 26, 2013
    Assignee: China Tobacco Fujian Industrial Co., Ltd.
    Inventors: Hongliang Lu, Kai Lin, Jing Yu, Feng Zhang
  • Publication number: 20130305596
    Abstract: The present disclosure includes liquid compositions that can be used for marking liquid hydrocarbon-based fuels and combustibles; these compositions include at least one marker, one or more solvents and, optionally, one or more functional additives other than the markers. The disclosure also includes a process for qualitative and quantitative detection of these markers present in a liquid hydrocarbon-based composition.
    Type: Application
    Filed: February 7, 2012
    Publication date: November 21, 2013
    Applicant: TOTAL MARKETING SERVICES
    Inventors: Bénédicte Amblard, Denis Fadel, Jean-Paul Mercier, Frédéric Tort, Christian Tremoliere
  • Patent number: 8574920
    Abstract: An optical fiber polarimetric chemical sensor for capillary gas chromatography in which a sample fluid is injected into a capillary in the form of a periodic pulse train. Each individual pulse defines a moving polarization coupling zone that affects the polarization state of the light propagating in a birefringent optical waveguide that includes the capillary. The spacing between consecutive coupling zones can be made equal to the polarization beat length of the waveguide when the injection frequency of the pulses is properly selected, thus defining a resonance condition for a given analyte. The contributions of the successive coupling zones present along the length of the capillary then add up in phase, thus resulting in a detected optical signal having an enhanced amplitude peak at the injection frequency. In this manner, the sensitivity can be enhanced.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: November 5, 2013
    Assignee: Institut National d'Optique
    Inventors: Serge Caron, Claude Pare
  • Patent number: 8569070
    Abstract: A fitting assembly having a nut, a ferrule, and a ferrule tip that may be assembled by an operator. The fitting assembly includes a nut with first and second ends, with the second end adapted to receive the first end of a ferrule, and a ferrule tip with a first end having an externally tapered portion adapted to abut the second end of the ferrule and a second end adapted to be received in a component or fitting of a liquid chromatography system. The nut, ferrule and ferrule tip of the fitting assembly have passageways therethrough for receiving and removably holding tubing.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: October 29, 2013
    Assignee: IDEX Health & Science LLC
    Inventors: Scott J. Ellis, Eric Beemer, Nathaniel Nienhuis, Craig W. Graham, Troy N. Sanders