Multiple Stages Of Heating Or Heating At Multiple Temperatures Or Application Of Temperature Gradient Patents (Class 436/157)
  • Patent number: 10697914
    Abstract: A rapid laser device method for thermal analysis of a substance based on the laser-driven thermal reactor (RHTR) is disclosed. Substances that can be analyzed are solids, liquids, including various multiphase and multicomponent inhomogeneous substances. The RHTR measures an integrated thermal response, representing the effects of multiple thermal and chemical properties. The RHTR makes these measurements in a dynamic environment that is characteristic of real-world conditions where temperatures are changing rapidly.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: June 30, 2020
    Assignee: ENERGY STORAGE & RETENTION SOLUTIONS HOLDINGS, LLC
    Inventor: Ashot Nazarian
  • Publication number: 20150125962
    Abstract: To provide a heating apparatus for a gas chromatograph, and a heating method for a gas chromatograph, wherein vapor phase components can be analyzed at an arbitrary temperature and can be instantaneously heated and pyrolized at a set temperature, thereby enabling analysis to be carried out with good reproducibility. The heating apparatus for a gas chromatograph 10 is structured in that the ceramic heater 33 is disposed around the periphery of the sample tube 31 to heat the sample 1 housed in the sample tube 31, the temperature of the sample 1 is incrementally elevated, and the high-frequency coil 35, disposed around the periphery of the ceramic heater 33, heats the pyrofoil 32 wrapping the sample 1 to the Curie point, and the sample 1 is instantaneously heated and pyrolized.
    Type: Application
    Filed: May 2, 2013
    Publication date: May 7, 2015
    Applicant: JAPAN ANALYTICAL INDUSTRY CO., LTD.
    Inventors: Naoki Oguri, Kaoru Enokido
  • Patent number: 8846407
    Abstract: A method and device for detecting explosive compounds in an air sample in which the air sample is filtered with activated carbon treated with a weakly basic solution, after which the air sample is divided into two parts, with one part being heated at lower temperatures to decompose non-explosive nitrogenous compounds and the second part being heated at higher temperatures to decompose explosive nitrogenous compounds. Nitrogen dioxide is measured in both portions of the air sample with a spectrographic detector, and the presence or absence of explosive nitrogenous compounds in the air sample is determined.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: September 30, 2014
    Inventor: James M. Hargrove
  • Publication number: 20140273262
    Abstract: Provided is a catalytic combustion typed gas sensor of detecting a combustible gas having a concentration equal to or more than a predetermined value based on a raised electric resistance. Herein, combustion heat generated when a combustible gas contacts to a catalytic metal (or detection element) heated by passing electric current therethrough raises a temperature and electric resistance of the catalytic metal. The electric current is made to pass through the catalytic metal such that the temperature of the catalytic metal becomes a standby temperature which is calculated by subtracting the raised temperature portion from a desorption temperature. The combustion heat is generated when the combustible gas contacts to the catalytic metal. Note the catalytic metal adsorbs a silicone compound via a silicon (Si) poisoning process and then desorbs the resulting adsorbed silicone compound at the desorption temperature. The desorption temperature is set in the range over 350° C. to 600° C.
    Type: Application
    Filed: May 29, 2014
    Publication date: September 18, 2014
    Applicant: Honda Motor Co., Ltd.
    Inventors: Kazuhiro OKAJIMA, Hidetoshi OISHI, Shunji TSUKABAYASHI, Akihiro SUZUKI, Nobuaki MURAKAMI, Satoshi MORIMOTO, Hiroshi KODA, Takashi MATSUMOTO
  • Patent number: 8796035
    Abstract: The invention relates to a method and to a device for sulfur characterization and quantification in a sample of sedimentary rocks or of petroleum products wherein the following stages are carried out: heating said sample in a pyrolysis oven (1) in a non-oxidizing atmosphere, oxidizing part of the pyrolysis effluents and continuously measuring the amount of SO2 generated by said part after oxidation, then transferring the pyrolysis residue of said sample into an oxidation oven (1?) and continuously measuring the amount of SO2 contained in the effluents resulting from said oxidation heating.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: August 5, 2014
    Assignees: IFP Energies Nouvelles, Vinci Technologies
    Inventors: Jean Espitalie, Roland Antonas, Violaine Lamoureux-Var, Gérémie Letort, Daniel Pillot, Valérie Beaumont, Frank Haeseler
  • Patent number: 8765077
    Abstract: Multiplex binding assay assemblies are disclosed. The assemblies generally include at least one assay bar that includes a top side, a bottom side, and at least one well accessible from the top side of the assay bar. Each well includes a side surface, a bottom surface, an open top end, and at least one secondary container, with each secondary container including a capillary tube that (i) begins at a location within an interior volume of the well and (ii) ends at a location beneath the bottom surface of the assay bar. The assemblies further include a dispenser bar that is adapted to be positioned adjacent to the top side of the assay bar, which includes one or more reservoirs that are configured to provide one or more reagents to the at least one secondary container located in each well of the assay bar.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: July 1, 2014
    Inventor: Pierre F. Indermuhle
  • Patent number: 8722417
    Abstract: An apparatus is provided for sensing an analyte in a fluid.
    Type: Grant
    Filed: January 20, 2007
    Date of Patent: May 13, 2014
    Assignee: Invoy Technologies, L.L.C.
    Inventor: Lubna Ahmad
  • Patent number: 8697005
    Abstract: Multiplex binding assay assemblies are disclosed. The assemblies include at least one assay bar that has a top side, a bottom side, and at least one well accessible from the top side of the assay bar, with each well including a side surface, a bottom surface, an open top end. Each well also includes at least one secondary container, with each secondary container including a capillary tube that (i) begins at a location within an interior volume of the well and (ii) ends at a location beneath the bottom side of the assay bar. The assemblies further include a guiding track, which includes a set of two rails, with each rail having its own separate groove. Such grooves are configured to run parallel to each other with a distance between such grooves, with a first groove configured to receive a protruding element (or an end) of a first side of the assay bar, and a second groove configured to receive a protruding element (or an end) of a second side of the assay bar.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: April 15, 2014
    Inventor: Pierre F. Indermuhle
  • Patent number: 8388892
    Abstract: An in-line loss-on-ignition measurement system includes an on-site extractor subsystem configured to collect fuel or a combustion by-product from a hydrocarbon fuel burning plant. An on-site analyzer is configured to receive the collected matter from the extractor subsystem and configured to weigh the collected matter, burn the collected matter, and weight the collected matter again. A controller is responsive to the analyzer and is configured to determine the loss-on-ignition data for the plant based on the weight of the collected matter before and after it is burned in the analyzer.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: March 5, 2013
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Daniel Harjes, John Williams, James A. Bickford, Daniel Traviglia, David G. D'Amore, James D. Derouin
  • Patent number: 8277763
    Abstract: The present invention relates to a method of processing analyte using a portable incubator apparatus. The incubator apparatus 10 has a plurality of cavities 20 each configured to receive analyte to be incubated. The method comprises: receiving analyte in each of the plurality of cavities; incubating the analyte in the plurality of cavities, the incubator apparatus being operable to control temperatures of analyte contained in the plurality of cavities independently of each other; and moving the incubator apparatus from a first location to a second location while the analyte is being incubated, the incubator apparatus being configured to maintain desired incubation conditions independently of a supply of electrical power and apparatus external to the incubator apparatus as the incubator apparatus is being moved.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: October 2, 2012
    Assignee: Centeo Biosciences Limited
    Inventors: Philipp Steinmann, Gabriela Juárez Martinez
  • Patent number: 8124033
    Abstract: The invention provides an apparatus for regulating the temperature of a chemical and/or biological sample and a method of using the same. The apparatus includes at least one temperature control module. The temperature control module includes a heater, a conductor of caloric, and a temperature sensor. The heater of the temperature control module is adapted to thermally communicate with a removable substrate, on which said chemical and/or biological sample is placed, via the conductor of caloric. The temperature sensor of the temperature control module is adapted to detect and control the temperature of the substrate via the conductor of caloric. The apparatus is designed such that the substrate is situated above said temperature control module to entirely cover said temperature control module.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: February 28, 2012
    Assignee: Agency, Science, Technology and Research
    Inventors: Pavel Neuzil, Tseng-Ming Hsieh, Juergen Pipper
  • Patent number: 8039266
    Abstract: Methods to radiolabel natural organic matter by reduction with a hydrogen labeled reducing agent, and compositions, are provided.
    Type: Grant
    Filed: September 17, 2007
    Date of Patent: October 18, 2011
    Assignee: Colorado School of Mines
    Inventors: Ruth M. Tinnacher, Bruce D. Honeyman
  • Patent number: 7829024
    Abstract: A urea concentration identification device comprising a concentration identification sensor unit (2) and a support unit (4) attached at the bottom end thereof with this sensor unit and provided at the top end thereof with a mounting unit (4a) to a urea solution tank opening. The concentration identification sensor unit (2) has an indirectly-heated concentration detector and liquid temperature detector provided with metal fins (21c),(22c), respectively, for heat-exchanging with urea solution. The concentration identification sensor unit (2) is provided with a cover member (2d) that forms an opposite-ends-opened urea solution induction passage so as to surround the metal fins (21c),(22c), and an enclosure (2e) that forms communication holes (26),(27) in the top and bottom end plate thereof (2e1),(2e2).
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: November 9, 2010
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Kenjiro Izutani, Takayuki Takahata
  • Patent number: 7803627
    Abstract: Process for evaluating the coke and/or bitumen yield and quality of a plurality of refinery feedstocks, by (i) providing a plurality of refinery feedstocks, (ii) placing a sample of each of the plurality of refinery feedstocks on a heating device, (iii) heating each sample under vacuum to a temperature in the range 300° C. to 420° C. using the respective heating device while measuring the weight loss of the sample, and then (iv) (a) measuring the bitumen quality of the vacuum residues formed, and/or (b)(i) heating the vacuum residues to a temperature in the range 450° C. to 600° C. using the heating device, while measuring the weight loss of the sample, and then (ii) measuring the coke quality of the products formed.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: September 28, 2010
    Assignee: BP Oil International Limited
    Inventor: Michael Graham Hodges
  • Patent number: 7772004
    Abstract: The invention relates to a method allowing to determine at least one petroleum characteristic of a geologic sediment sample, wherein the sample is heated in an oxidizing atmosphere, its temperature being successively raised to a first, then to a second value, said first value below 200° C. being reached very quickly, then maintained substantially constant for a certain time, said second value ranging between 600° C. and 850° C. being reached with a temperature gradient ranging between 1 and 30° C./min, from said first value. According to the invention, the amount of SO2 contained by the effluent resulting from said oxidizing heating is measured continuously, every moment of the heating period of said sample.
    Type: Grant
    Filed: April 15, 2005
    Date of Patent: August 10, 2010
    Assignee: Institut Francais du Petrole
    Inventor: François Lorant
  • Patent number: 7727766
    Abstract: There is disclosed a method of testing oil extraction processes including the steps of: 1) placing a sample to be tested in a sample holder which has a configurable temperature profile; 2) placing the sample holder in a pressure vessel; 3) increasing the pressure in the pressure vessel to simulate an over burden pressure; 4) configuring the temperature profile of the sample holder to match a desired temperature profile; 5) applying an oil extraction process to the sample; 6) measuring one or more parameters of the oil extraction process; 7) measuring the temperature of the sample to which the process is being applied; 8) configuring the sample holder to match the measured temperature profile. A device to test oil extraction processes on samples is disclosed. The device has a temperature configurable sample holder having sufficient temperature control to provide a desired heat profile to the sample.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: June 1, 2010
    Assignee: N-Solv Corporation
    Inventors: John Nenniger, Steve Conzuorgood, Lowy Gunnewiek, Bob Reid, Emil Nenniger
  • Patent number: 7514041
    Abstract: There is disclosed a method of testing oil extraction processes including the steps of: 1) placing a sample to be tested in a sample holder which has a configurable temperature profile; 2) placing the sample holder in a pressure vessel; 3) increasing the pressure in the pressure vessel to simulate an over burden pressure; 4) configuring the temperature profile of the sample holder to match a desired temperature profile; 5) applying an oil extraction process to the sample; 6) measuring one or more parameters of the oil extraction process; 7) measuring the temperature of the sample to which the process is being applied; and 8) configuring the sample holder to match the measured temperature profile. A device to test oil extraction processes on samples is also disclosed. The device has a temperature configurable sample holder having sufficient temperature control to provide a desired heat profile to the sample.
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: April 7, 2009
    Assignee: N-SOLV Corporation
    Inventors: Steve Conquorgood, Lowy Gunnewiek, Bob Reid, Emil Nenniger, John Nenniger
  • Publication number: 20080299670
    Abstract: Combustion tube (100,130,150) and method for combusting a sample to form combustion products for analysis. A primary combustion chamber (102) receives and combusts a sample to form first combustion products. A secondary combustion chamber (110) receives and combusts the first combustion products to form second combustion products. The secondary chamber is disposed around the primary chamber and comprises a plurality of—preferably, three—combustion compartments (112-116). Each successive compartment is disposed around the preceding compartment and defines a respective gas flow channel having an inlet opening (108,118,120) and an outlet opening (118,120,122) at opposite ends. Each successive gas flow channel shares its inlet opening with the outlet opening of the preceding channel. The plurality of combustion compartments define a substantially continuous gas flow conduit from the inlet opening of the innermost compartment to the outlet opening of the outermost compartment.
    Type: Application
    Filed: March 24, 2008
    Publication date: December 4, 2008
    Applicant: THERMO FISHER SCIENTIFIC INC.
    Inventors: Louis Marie SMEETS, Franciscus Maria FOLST, Peter Joannes COENDERS
  • Patent number: 7390668
    Abstract: New intracorporeal photodynamic medicaments and certain medical uses and methods for use of such photodynamic medicaments for treatment of disease in human or animal tissue are described, wherein a primary active component of such medicaments is a halogenated xanthene or halogenated xanthene derivative. In preferred embodiments, such medicaments are used for treatment of a variety of conditions affecting the skin and related organs, the mouth and digestive tract and related organs, the urinary and reproductive tracts and related organs, the respiratory tract and related organs, the circulatory system and related organs, the head and neck, the endocrine and lymphoreticular systems and related organs, various other tissues, such as connective tissues and various tissue surfaces exposed during surgery, as well as various tissues exhibiting microbial or parasitic infection.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: June 24, 2008
    Assignee: Provectus Pharmatech, Inc.
    Inventors: H. Craig Dees, Timothy C. Scott, Eric A. Wachter, Walter G. Fisher, John Smolik
  • Patent number: 7256044
    Abstract: An apparatus and a method for rapidly generating a plurality of isolated effluents have been developed. A specific embodiment involves screening a plurality of solids through simultaneously contacting the members of the plurality with a fluid, sampling the resulting fluids, and processing the resulting fluids to, for example, determine changes as compared to the feed fluid or as compared to other resulting fluids.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: August 14, 2007
    Assignee: UOP LLC
    Inventors: Arne Karlsson, Mark A. Krawczyk, Ara J. Alexanian, Duncan E. Akporiaye, Ivar M. Dahl
  • Patent number: 7189373
    Abstract: Carbon monoxide contained in reformate gas is removed by a preferential oxidation reaction in a catalyst, two preferential oxidation reactors (20A, 20B) being disposed in series. Valves (7, 8) supply air containing oxygen as an oxidizing agent individually to these preferential oxidation reactors (20A, 20B). Temperature sensors (9, 10) detect the catalyst temperatures of the preferential oxidation reactors (20A, 20B), and a controller (5), by adjusting the flow rate of the valves (7, 8) based on the detected temperatures, maximizes the carbon monoxide removal performance of the preferential oxidation reactors (20A, 20B), while preventing excessive catalyst temperature rise.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: March 13, 2007
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Ikuhiro Taniguchi, Hiroaki Hashigaya
  • Patent number: 7188001
    Abstract: A system for controlling the temperature of a reaction mixture comprises at least one heating device for heating the mixture and a power regulator for regulating the amount of power supplied to the heating device. A controller in communication with the power regulator includes program instructions for heating the reaction mixture by setting a variable target temperature that initially exceeds a desired setpoint temperature for the mixture. When the heating device reaches a threshold temperature, the variable target temperature is decreased to the desired setpoint temperature. In another embodiment, the controller includes an adaptive control program for dynamically adjusting the duration or intensity of power pulses provided to the heating device.
    Type: Grant
    Filed: January 27, 2003
    Date of Patent: March 6, 2007
    Assignee: Cepheid
    Inventors: Steven J. Young, Gregory T. A. Kovacs, M. Allen Northrup, Kurt E. Petersen, William A. McMillan, Konstantin Othmer, Lee A. Christel
  • Patent number: 7150994
    Abstract: Parallel flow reaction systems comprising four or more reaction channels are disclosed. Distribution systems, and parallel flow reaction systems comprising such distribution systems are also disclosed. Specifically, the distribution systems comprise one or more subsystems, including for example, a flow-partitioning subsystem for providing a different flow rate to each of the four or more reactors, a pressure-partitioning subsystem for providing a different reaction pressure in the reaction cavity of each of the four or more reactors, and a feed-composition subsystem for providing a different feed composition to each of the four or more reactors. In preferred embodiments, the one or more subsystems can comprise at least one set of four or more flow restrictors, each of the four or more flow restrictors having a flow resistance that varies relative to other flow restrictors in the set.
    Type: Grant
    Filed: March 7, 2001
    Date of Patent: December 19, 2006
    Assignee: Symyx Technologies, Inc.
    Inventors: H. Sam Bergh, James R. Engstrom, Shenheng Guan, Daniel Meron Pinkas, Kyle W. Self
  • Patent number: 7129092
    Abstract: An apparatus and a method for rapidly generating a plurality of isolated effluents have been developed. A specific embodiment involves screening a plurality of solids through simultaneously contacting the members of the plurality with a fluid, simultaneously sampling the resulting fluids, and processing the resulting fluids to, for example, determine changes as compared to the feed fluid or as compared to other resulting fluids.
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: October 31, 2006
    Assignee: UOP LLC
    Inventors: Duncan E. Akporiaye, Maureen L. Bricker, Ivar M. Dahl, Arne Karlsson, Charles P. McGonegal, Elisabeth M. Myhrvold, Martin Plassen, Svend A. Taftø
  • Patent number: 7074367
    Abstract: The invention concerns a thermostated block for laboratory thermostats and comprising wells at a wells side to receive and make large-area contact with the parts of vials filled with sample liquids and comprising at least two heat regulating devices contacting the thermostated block in thermally conducting manner to generate different temperatures at different sites of the thermostated block, said block being characterized in that the heat regulating devices are in large-area contact with adjoining zones of the contact side opposite the wells side of the thermostated block.
    Type: Grant
    Filed: July 22, 2004
    Date of Patent: July 11, 2006
    Assignee: D-Eppendorf AG
    Inventors: Werner Lurz, Ruediger Brust, Dietmar Jodies, Ernst Tennstedt
  • Patent number: 6916664
    Abstract: A method and apparatus for sensing a flammable vapor are described herein. Initially, a first thermal conductivity of a vapor at a first temperature and a second thermal conductivity of the vapor at a second temperature can be determined. Thereafter, a ratio of the first thermal conductivity signal to that of the second thermal conductivity can be calculated to obtain a primary “vapor” signal. The “vapor” ratio can then be compared to an “air” ratio of air without the vapor at the first temperature and the second temperature to obtain a secondary signal thereof. Such a secondary signal can then be compared to an alarm set-point value to thereby determine whether the vapor comprises a flammable vapor and a risk-reducing action thereof be taken.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: July 12, 2005
    Assignee: Honeywell International Inc.
    Inventors: Ulrich Bonne, Richard W. Gehman
  • Patent number: 6884997
    Abstract: A dangerous substance detecting apparatus comprises an oven for accommodating a wiping member stuck with a sample derived from a dangerous substance, a light source for emitting infrared rays for heating the sample, an ion source for ionizing the sample evaporated in the oven, a mass analyzer for performing a mass analysis on ions, a data processing unit for processing an output signal from the mass analyzer to determine the presence or absence of a dangerous substance, an operation panel for displaying the result of the determination, an alarm unit for generating an alarm based on the result of the determination, and a control unit for controlling the respective components of the apparatus based on operating conditions entered from the operation panel and specified for the respective components of the apparatus.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: April 26, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Hideo Kashima, Izumi Waki, Yasuaki Takada, Hisashi Nagano, Katsumi Nagumo, Mitsuhiro Noda
  • Patent number: 6872570
    Abstract: A laboratory device for jointly tempering reaction samples in at least two steps in respectively assigned, specified temperature ranges, which are carried out repeatedly and consecutively as sequences of steps, the laboratory tempering device, in one step of the sequences of steps, bringing several groups of samples, in each case containing at least one sample, to temperatures within the temperature range, which are constant within the groups and different between the groups, wherein the laboratory tempering device, in each step of the sequence, brings a different partial amount of the samples in groups to temperatures, which are the same within the groups and different between the groups, and brings the samples of the other partial amounts to a same temperature within the assigned temperature range.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: March 29, 2005
    Assignee: Eppendorf AG
    Inventor: Heinz Gerhard Köhn
  • Patent number: 6803237
    Abstract: A sequential processing reactor vessel and method is disclosed for accelerated extraction and fractionation of chemical analytes from complex solid sample materials. The device and method provide for sequential extraction of elemental constituents from solid materials by sequentially contacting target samples within a single reaction vessel using a series of different reagents at temperatures as high as 150° C. and pressures up to 150 psi to accelerate reactions. The aggressive chemical treatments provided by the disclosed device and method enable the complete digestion of solid samples in liquid analyte samples that can be directly analyzed by conventional spectrometry or other suitable methods. The disclosed device and method provide for efficient sample processing and accelerated reactions to significantly reduce processing times and costs for elemental analysis of solids while improving accuracy, precision and reliability of results compared to conventional devices and methods.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: October 12, 2004
    Assignee: Woods Hole Oceanographic Institution
    Inventors: Steven J. Manganini, Kenneth W. Doherty, Terence R. Hammer, Bruce A. Lancaster
  • Patent number: 6767512
    Abstract: The invention concerns a thermostated block for laboratory thermostats and comprising wells at a wells side to receive and make large-area contact with the parts of vials filled with sample liquids and comprising at least two heat regulating devices contact the thermostated block in thermally conducting manner to generate different temperatures at different sites of the thermostated block, said block being characterized in that the heat regulating devices are in large-area contact with adjoining zones of the contact side opposite the wells side of the thermostated block.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: July 27, 2004
    Assignee: Eppendorf AG
    Inventors: Werner Lurz, Ruediger Brust, Dietmar Jodies, Ernst Tennstedt
  • Publication number: 20040014233
    Abstract: The invention features methods and systems for detecting the presence of an energetic material in a sample in which the presence of the energetic material is unknown. The method includes the steps of: heating the sample; measuring heat flow between the sample and its surrounding environment, e.g., by using differential scanning calorimetry (DSC); and analyzing the measured heat flow between the sample and its surrounding environment. An exothermal peak in the measured heat flow indicates the presence of the energetic material in the sample. The system includes a thermal measuring apparatus for performing the heating and measuring steps, and an analyzer for detecting the presence of the energetic material based on the measured heat flow. The invention also features methods and systems for identifying contraband materials (e.g., explosives and drugs) by measuring the thermogram (e.g., by DSC) of a sample to be identified and comparing it to reference thermograms for known contraband materials.
    Type: Application
    Filed: January 31, 2002
    Publication date: January 22, 2004
    Applicant: University of Massachusetts Massachusetts corporation
    Inventors: William W. Bannister, Chien-Chung Chen, William A. Curby, Eric B. Chen, Paul L. Damour, Antonio Morales
  • Patent number: 6627451
    Abstract: A water bath accommodating a calorimetric bomb (2) for measuring the combustion heat of substances with the aid of a calorimeter. The inner tank (3) is enclosed by an outer container (5) forming a water jacket and is shielded from the environment. If several measurements are conducted subsequently, the water found in the inner tank (3) and heated above its initial value through the combustion process taking place in connection with a previous measurement can be at least partially transferred into the outer container (5) with a second or other succeeding measurement prior to conducting it so that at least a part of the combustion heat of the preceding measurement can be used for heating up at least the water jacket in the outer container (5) in connection with the next measurement. Consequently, energy for tempering the water in the water jacket and/or in the water bath can be saved.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: September 30, 2003
    Assignee: IKA-Werke GmbH & Co., KG
    Inventors: Hubert Pinhack, Armin Wiesler, Alf-Bernd Ambs
  • Patent number: 6607920
    Abstract: An instrument for microwave-assisted chemical processes is disclosed that provides greater flexibility in carrying out microwave-assisted chemistry under varying conditions. The instrument includes a source of microwave radiation, and a cavity in communication with the source, with the cavity including at least one wall formed of two engaged portions that form a barrier to the transmission of microwaves when so engaged. The engaged portions are disengagable from one another, and one of the portions includes a microwave-attenuating opening.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: August 19, 2003
    Assignee: Cem Corporation
    Inventors: William Edward Jennings, Edward Earl King
  • Patent number: 6573105
    Abstract: A test method for a coating liquid for an electrophotographic photoconductor includes calculating a peak area ratio of a component to be analyzed in a coating liquid by pyrolysis gas chromatography, and comparing the peak area ratio with a pre-obtained peak area ratio of the component in a reference coating liquid having a known content of the component, to determine the ratio and/or content of the component in the coating liquid. A control method for controlling a coating liquid based on the test result as obtained is also provided.
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: June 3, 2003
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tomoko Kanazawa, Yoshihide Shimoda, Sayaka Fujita, Tadashi Nakamura, Masayuki Sakamoto, Tatsuhiro Morita
  • Patent number: 6516654
    Abstract: The present invention provides a method for analyzing particulate matter in a gas for analyzing simply and with high precision the particulate matter in an engine emission and an apparatus therefor by which dry soot, SOF and sulfate in PM contained in an engine emission can be fractionated individually even in a trifle amount. The present invention further provides a carbon differentiating and analyzing apparatus capable of differentiating and analyzing with precision the organic carbon and the elemental carbon contained in a sample and capable of performing a predetermined analysis with precision in a short time by reducing the period of time required for the analysis. The present invention is constituted such that a heating furnace is provided with a filter which has caught PM contained in engine emission. The filter is heated at a predetermined temperature while passing an inert gas into the heating furnace to evaporate the SOF and sulfate contained in PM.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: February 11, 2003
    Assignee: Horiba, Ltd.
    Inventors: Hiroshi Uchihara, Junji Okayama, Atsushi Bando, Masahiko Ikeda, Masayuki Adachi, Ichiro Asano, Hirokazu Fukushima
  • Publication number: 20020164819
    Abstract: The present invention relates to an arrangement (10, 20) for preparing samples (15, 27), submergible in a liquid medium. The arrangement comprises a section provided with a device (13, 23) for controllable generation of a magnetic field through influence of a control signal, said magnetic field being generated to trap at least part of said samples (15, 27).
    Type: Application
    Filed: August 23, 2001
    Publication date: November 7, 2002
    Inventors: David Storek, Niklaus Schneeberger, Britta Ottosson, Anatol Krozer, Robert Otillar
  • Publication number: 20020150507
    Abstract: The measuring sensor, particularly a lambda probe, has a ceramic sensor member retained at a high temperature during measuring operation. It is shielded from water droplets, carried along in the gas to be analyzed, by a heated protective housing, permeable for the gas to be analyzed, by which water droplets carried along in the direction of the sensor member are evaporated before reaching the sensor member. In this way, the water droplets are unable to cause any shock-like temperature drops at spots on the surface of the sensor member or material flaking.
    Type: Application
    Filed: October 19, 2001
    Publication date: October 17, 2002
    Inventors: Helmut Weyl, Hans-Martin Wiedenmann
  • Patent number: 6464391
    Abstract: A calorimeter that measures heat release rates of very small samples (on the order of one to 10 milligrams) without the need to separately and simultaneously measure the mass loss rate of the sample and the heat of combustion of the fuel gases produced during the fuel generation process. The sample is thermally decomposed in a small volume pyrolysis chamber. The resulting fuel gases are immedediately swept by an inert gas stream from the pyrolysis chamber into a combustion furnace in a plug-like flow. This plug flow substantially synchronizes the emerging fuel gases with the mass loss rate of the sample. Oxygen is metered into the fuel gas stream just before it enters the combustion furnace where the fuel gases are completely oxidized. The effluent from the furnace is analyzed to determine the amount of oxygen consumed per unit time and the heat release rate is computed without the need to separately measure the mass loss rate of the sample.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: October 15, 2002
    Assignee: The United States of America as represented by the Secretary of Transportation
    Inventor: Richard E. Lyon
  • Publication number: 20020142479
    Abstract: A lever fitting type connector (10) has a lever (40) provided with a rotation fulcrum portion (41), an application point portion (42) and an operation portion (43), which is interposed between a first connector (20) and a second connector (30). The rotation fulcrum portion (41) of the lever (40) is pivoted in a rotating manner to the first connector (20). In a state that both of the connectors are separated, an initial mounting position of the lever (40) is arranged substantially in parallel to a width direction of the first connector (20). A positional relation among the rotation fulcrum portion (41), the application point portion (42) and the operation portion (43) is constituted such that a fitting force is generated by an operation force in a drawing direction applied to the operation portion (43). After mutually inserting both of the connectors (20, 30) to a lever operation starting position, the operation force in the drawing direction is applied to the operation portion (43).
    Type: Application
    Filed: March 27, 2002
    Publication date: October 3, 2002
    Inventors: Toshiaki Okabe, Tetsuya Yamashita
  • Patent number: 6455317
    Abstract: A system and method for controlling a microwave heated chemical process is disclosed. Time varying concentrations of some chemical substances within fumes in the microwave oven are monitored to detect concentration variations for which responses are known. Responses to the detected variations are initiated to control the chemical process without terminating the process. Examples of responses include varying microwave radiation energy, initiating safety systems, increased venting of the microwave oven, and so forth.
    Type: Grant
    Filed: March 6, 2000
    Date of Patent: September 24, 2002
    Assignee: Milestone s.r.L.
    Inventor: Werner Lautenschlager
  • Patent number: 6440746
    Abstract: An apparatus for pyrolysis of a bituminous paving mix is provided, comprising an oven having a bottom wall, a top wall, and side walls defining a combustion chamber, a sample support within the combustion chamber, an infrared heater mounted within the oven and arranged for emitting infrared radiation towards the sample holder so as to heat a sample of paving mix by means of radiation heat transfer, an air inlet positioned for emitting air into the combustion chamber, and an outlet positioned to provide for the circulation of air and combustion gases through the combustion chamber. The apparatus may further include a blower located on the downstream side of the outlet for inducing flow into the combustion chamber by the inlet and out of the combustion chamber by the outlet. A variable speed blower controller may be used to vary the blower speed during paralysis of the paving mix.
    Type: Grant
    Filed: January 3, 2000
    Date of Patent: August 27, 2002
    Assignee: Troxler Electronic Laboratories, Inc.
    Inventors: Robert Ernest Troxler, William Finch Troxler, Sr., Wewage Linus Dep
  • Patent number: 6436718
    Abstract: The present invention provides a method and apparatus for accurately determining weight loss of a sample during heating in a furnace. The method includes the steps of placing a sample in a heated furnace, heating the sample while measurements of sample weight are made, determining rate function from the sample weight measurements, producing a weight loss correction factor using the rate function and using the weight loss correction factor to obtain a corrected weight loss for the sample.
    Type: Grant
    Filed: July 16, 1999
    Date of Patent: August 20, 2002
    Assignee: Troxler Electronic Laboratories, Inc.
    Inventor: Robert Ernest Troxler
  • Publication number: 20020102738
    Abstract: An instrument for microwave-assisted chemical processes is disclosed that provides greater flexibility in carrying out microwave-assisted chemistry under varying conditions. The instrument includes a source of microwave radiation, and a cavity in communication with the source, with the cavity including at least one wall formed of two engaged portions that form a barrier to the transmission of microwaves when so engaged. The engaged portions are disengagable from one another, and one of the portions includes a microwave-attenuating opening.
    Type: Application
    Filed: January 31, 2001
    Publication date: August 1, 2002
    Inventors: William Edward Jennings, Edward Earl King
  • Patent number: 6417004
    Abstract: The present invention is directed to a method and apparatus for detection of a diagnostically significant amount of clot in an aliquot of blood. In a preferred embodiment, the method uses a cocktail of activators to facilitate and proctor absolute activation of Factor XII (the contact factor for the intrinsic pathway of coagulation). Possible activators include Celite®, kaolin, glass beads, colloidal silica, and diatomaceous material. This cocktail formulation is important because some individuals respond differently to different activators and hence, the cocktail formulation facilitates standardization of the patient population by reducing the patient-activator sensitivity artifacts.
    Type: Grant
    Filed: February 14, 2000
    Date of Patent: July 9, 2002
    Assignee: Helena Laboratories Corporation
    Inventors: Terry E. Brady, Michael F. Corsello
  • Patent number: 6413781
    Abstract: The method and apparatus of the invention create a dynamic Soret effect for propelling a target chemical constituent along a pathway. A moving temperature profile impressed upon the pathway produces consecutive alternating warmer and cooler zones along the path which transport components of a mixture down the path according to their respective diffusivities. In one embodiment, the invention provides a dynamic thermophoretic concentrator for separating a target chemical constituent from a mixture of components on the basis of diffusion coefficient by using alternate forward and backward motion of a temperature profile along the pathway, thereby accumulating an ultimate concentration of the target constituent greater than its initial concentration in the mixture.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: July 2, 2002
    Assignee: Massachusetts Institute of Technology
    Inventors: Michael W. Geis, Roderick R. Kunz, Margaret B. Stern
  • Patent number: 6406918
    Abstract: The invention features methods and systems for detecting the presence of an energetic material in a sample in which the presence of the energetic material is unknown. The method includes the steps of: heating the sample; measuring heat flow between the sample and its surrounding environment, e.g., by using differential scanning calorimetry (DSC); and analyzing the measured heat flow between the sample and its surrounding environment. An exothermal peak in the measured heat flow indicates the presence of the energetic material in the sample. The system includes a thermal measuring apparatus for performing the heating and measuring steps, and an analyzer for detecting the presence of the energetic material based on the measured heat flow. The invention also features methods and systems for identifying contraband materials (e.g., explosives and drugs) by measuring the thermogram (e.g., by DSC) of a sample to be identified and comparing it to reference thermograms for known contraband materials.
    Type: Grant
    Filed: January 25, 2000
    Date of Patent: June 18, 2002
    Assignee: University of Massachusetts
    Inventors: William W. Bannister, Chien-Chung Chen, William A. Curby, Eric B. Chen, Paul L. Damour, Antonio Morales
  • Patent number: 6346290
    Abstract: Methods and apparatus for the preparation and use of a substrate having an array of diverse materials in predefined regions thereon. A substrate having an array of diverse materials thereon is generally prepared by delivering components of materials to predefined regions on a substrate, and simultaneously reacting the components to form at least two materials. Materials which can be prepared using the methods and apparatus of the present invention include, for example, covalent network solids, ionic solids and molecular solids. More particularly, materials which can be prepared using the methods and apparatus of the present invention include, for example, inorganic materials, intermetallic materials, metal alloys, ceramic materials, organic materials, organometallic materials, non-biological organic polymers, composite materials (e.g., inorganic composites, organic composites, or combinations thereof), etc.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: February 12, 2002
    Assignees: Symyx Technologies, Inc., The Regents of the University of California
    Inventors: Peter G. Schultz, Xiaodong Xiang, Isy Goldwasser
  • Patent number: 6277649
    Abstract: A system for analysis of materials includes a sensor loop (100). The sensor loop includes sensors (130) therein. The sensor loop includes traps (120, 140). Sample material is desorbed from a first trap, moved past the sensors and collected in the second trap. The material is then desorbed from the second trap, moved past the sensors and again collected in the first trap. The amount and rate of flow of the sample material past the sensors is controlled, and the repeated exposure of the sensors to the sample material enhances sensitivity.
    Type: Grant
    Filed: August 2, 1999
    Date of Patent: August 21, 2001
    Inventor: Michael Markelov
  • Patent number: 6254828
    Abstract: Gases flow to individual gas analysis cells. The cells are sequentially aligned with an infrared detector, which senses the composition and quantities of the gas components. Each elongated cell is tapered inward toward the center from cell windows at the ends. Volume is reduced from a conventional cell, while permitting maximum interaction of gas with the light beam. Reduced volume and angulation of the cell inlets provide rapid purgings of the cell, providing shorter cycles between detections. For coal and other high molecular weight samples, from 50% to 100% oxygen is introduced to the tubes. Cells are suspended from adjustable holders on a frame which is spaced from a table. The table is moved by a linear motor and a fixed platen. Sides of the table are shielded to prevent electromagnetic and magnetic motor interference with detected results. The entire table, cells, mounting plate and linear motor are mounted in a housing with aligned holes for the analysis energy source and detector.
    Type: Grant
    Filed: April 19, 1993
    Date of Patent: July 3, 2001
    Inventor: Robert B. LaCount
  • Patent number: 6207462
    Abstract: A method and apparatus are disclosed for analyzing the aggregate content of asphalt-aggregate compositions. The method includes placing a preheated, preweighed container carrying a sample of an asphalt-aggregate composition into a preheated furnace with the preheated furnace being warmer than the preheated sample, continuing to heat the furnace while drawing air through the furnace at a rate that avoids impeding the heating of the furnace or the sample until the sample in the container reaches its combustion temperature and the combustion of the sample becomes exothermic, initiating a second draw of air around rather than through the furnace to moderate the exterior temperature of the furnace, accelerating the draw through the furnace to increase the rate of combustion of the exothermic reaction, and reweighing the container and sample after combustion is complete.
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: March 27, 2001
    Assignee: CEM Corporation
    Inventors: David Allan Barclay, Ali Regimand