Corrosion Tester Patents (Class 422/53)
  • Patent number: 10444192
    Abstract: An environment measuring device 1 has a measuring QCM sensor 10, a reference QCM sensor 20, a measurement oscillation circuit 15, a reference oscillation circuit 25, a frequency counter 31, a humidity sensor 51, a control unit 40, and a storage unit 41. The measuring QCM sensor 10 has an oscillator and an electrode formed by a corrosive metal on the surface of the oscillator, and the reference QCM sensor 20 has an oscillator and an electrode formed by a corrosion-resistant metal on the surface of the oscillator. The storage unit 41 stores the measurement count signal, the reference count signal, and the humidity signal which are associated with a measurement time. The control unit 40 determines an amount of increase in mass due to the corrosion of the electrode of the measuring QCM sensor by using the measurement count signal and the reference count signal.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: October 15, 2019
    Assignee: FUJITSU LIMITED
    Inventor: Ryozo Takasu
  • Patent number: 10302550
    Abstract: A coupon suitable for peeling tests, derived from a vane and including: (i) a portion of blade that comprises an intrados surface, an extrados surface and a leading edge and/or trailing edge and (ii) a vane reinforcement that covers and is glued to at least a part of the intrados surface, a part of the extrados surface and which extends beyond the leading and/or trailing edge. The reinforcement is split over the entire length of the leading edge and/or trailing edge such that the reinforcement is separated into two plates separate from one another and facing each other on either side of the slit beyond the leading and/or trailing edge. Furthermore, at least one of the plates furthermore comprises, beyond the leading and/or trailing edge, notches configured to provide a hold to this same plate.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: May 28, 2019
    Assignee: Safran Aircraft Engines
    Inventors: Pascal Noël Brossier, Thibault Berranger, Emmanuel Chichery, Léa Gani, Alain Timon
  • Patent number: 9880087
    Abstract: A remaining service life evaluation method for evaluating a remaining service life of a metal pipe suffering from creep damage on a basis of a master curve that is prepared in advance that includes wrapping a steel strip around an outer peripheral face of the metal pipe under same conditions as those during an internal pressure creep test and evaluating a remaining service life of the metal pipe on a basis of a degree of deterioration of the steel strip.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: January 30, 2018
    Assignee: THE CHUGOKU ELECTRIC POWER CO., INC.
    Inventor: Hidetaka Nishida
  • Patent number: 9804077
    Abstract: Provided is a device for monitoring corrosive environment including at least one passage structure having an opening and configured to control intrusion of a corrosive substance present in an atmosphere; and a sensor unit having a metal film that is disposed inside the passage structure. The metal film inside the passage structure corrodes by the corrosive substance intruding from the opening to the passage structure. During the monitoring, an electric resistance value of the metal film varies depending on expansion of the corroded region of the metal film. Thus, the device for monitoring corrosive environment measures the electric resistance value of the metal film with suppressing fluctuation of the measured values. This allows a corrosion level of the environment installed with electric and electronic apparatuses to be evaluated for a long term and in an accurate manner.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: October 31, 2017
    Assignee: Hitachi, Ltd.
    Inventors: Rintarou Minamitani, Noriyuki Kushida, Tetsuya Ideno
  • Patent number: 9804140
    Abstract: A smart sticker for determining the current state of raw meat for safe human consumption is provided. The smart sticker indicates the quality or decomposition of the meat by changing color. The smart sticker employs a cupric nitrate solution mixed with a polymeric silicon substrate that forms a complex with the valence electrons on the nitrogen atom of an amino acid residue. After this interaction occurs, the smart sticker changes color from, for example, light blue to purple.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: October 31, 2017
    Inventors: Sindy Johanna Chaves Noguera, Juan Scott Chaves Noguera
  • Patent number: 9778241
    Abstract: Methods are provided for characterizing the stability of a distillate fraction using a quartz crystal microbalance apparatus, such as a distillate fraction derived at least in part from a pre-refined crude oil. A sample can be aged for an aging period in a quartz crystal microbalance apparatus, and a frequency value for the sample in the quartz crystal microbalance apparatus can be determined before and after the aging period to determine a frequency difference. This frequency difference can be correlated directly with the ability of a jet fuel fraction to satisfy a stability test standard, such as a jet fuel breakpoint stability. The methods can also include using a temperature profile during characterization that can reduce or minimize operator error during the characterization.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: October 3, 2017
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Roger Grant Gaughan, Manuel S. Alvarez, David John Abdallah, Christopher J. Wolfe
  • Publication number: 20150119286
    Abstract: A high-throughput corrosion testing mechanism was developed for metals in a variety of environments in controlled, multiplexed microenvironments. Many parallel experiments can be conducted with microbial and environmental variables independently manipulated to identify the key determinants of corrosion progression. The synthetic assay design enables subsequent surface characterization of select samples within the array. In as little as one day, diverse corrosive environments can be compared quantitatively.
    Type: Application
    Filed: October 29, 2014
    Publication date: April 30, 2015
    Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Matthew James Whitfield, Krystyn J. Van Viet
  • Publication number: 20150098863
    Abstract: A system electronically monitors the consumption of gas adsorbent media in a media bed. The system includes a controller and a monitoring rod having a plurality of sensors disposed on the monitoring rod. The sensors are in communication with the controller. Each sensor includes a corrodible portion having an exposed electrically conducting material susceptible to corrosion by a corrosive agent, a first lead in electrical contact with a first end of the corrodible portion, and a second lead in electrical contact with a second end of the corrodible portion. The corrodible portion, the first lead and the second lead together form a continuous communication path to the controller, and the monitoring rod is at least partially disposed in the media.
    Type: Application
    Filed: October 1, 2014
    Publication date: April 9, 2015
    Inventor: Kevin Francis Jameson
  • Patent number: 8951802
    Abstract: A method of testing workpieces and an automated oscillating solution spray manifold assembly for a corrosion testing chamber is configured to introduce a fluid into a cavity of a test cabinet that receives workpieces. The manifold assembly includes a motor having an output shaft for driving a linkage assembly. An elongated spray bar is connected to the linkage assembly and the spray bar has a plurality of openings spaced therealong. The linkage assembly is configured to rotate the spray bar in a desired oscillatory movement such that fluid can be dispensed through the openings and into the test cabinet. A fan-like pattern sprays from one opening and substantially overlaps with spray from at least one adjacent opening. The method of testing may include one or more of the steps of controlling a speed of the motor, a temperature level of the cavity, a humidity level of the cavity, and a salinity content of the fluid within the cavity of the test cabinet.
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: February 10, 2015
    Assignee: The Singleton Corporation
    Inventor: Eric Bridenbaker
  • Patent number: 8927289
    Abstract: Provided are an atmospheric corrosion test procedure and an apparatus used for the test. The procedure involves a salt spray step for supplying salt content containing chloride ions on the surfaces of test pieces placed in a thermo-humidistat chamber and a subsequent dry-wet cyclic step including a dry sub-step for drying the surface of the test pieces in the thermo-humidistat chamber at a low relative humidity and a subsequent wet sub-step at a higher relative humidity than that in the dry sub-step, which are cycled. The salt content is supplied by spraying the salt water in the salt spray step. An exhaust step for removing the salt mist sprayed inside thermo-humidistat chamber is further inserted between the salt deposition step and the dry sub-step. The quantity of the salt content deposited on the surfaces of the test pieces is controlled by adjusting the quantity of the sprayed salt water.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: January 6, 2015
    Assignee: Hitachi, Ltd.
    Inventors: Kazumi Fujii, Katsuhito Takahashi
  • Publication number: 20140295560
    Abstract: The present disclosure provides a device for predicting corrosion in a tubular element that receives hydrocarbons. The device includes a housing, a first sensor, and a location tracking device. The first sensor is partially within the housing and detects one of first physical, chemical and electrical signals of a fluid within the tubular element at a plurality of locations within the tubular element. The location tracking device is within the housing and operatively connected to the first sensor. The location tracing device determines an axial and circumferential position of the first sensor at each of the plurality of locations.
    Type: Application
    Filed: January 31, 2014
    Publication date: October 2, 2014
    Inventor: Rotimi A. Ojifinni
  • Publication number: 20140212978
    Abstract: Example methods, systems, and computer readable media are provided for monitoring operating processes. An example method includes monitoring an equipment parameter associated with an asset in an operating process unit and monitoring a process parameter associated with the asset. The example method includes determining an asset health corresponding to the asset. The asset health is determined based on a potential state of corrosion associated with the asset by comparing a corrosivity index to a corrosion threshold. The corrosivity index is a function of at least one of current values or changes in the monitored equipment parameter or the monitored process parameter over time.
    Type: Application
    Filed: January 28, 2013
    Publication date: July 31, 2014
    Applicant: Fisher-Rosemount Systems, Inc.
    Inventors: Joseph Hiserodt Sharpe, JR., Hallgeir Jenssen
  • Patent number: 8771593
    Abstract: Disclosed is a method of controlling a real-time oxidation-reduction potential in a hot water system to inhibit corrosion in the hot water system. The method includes defining one or more operational protective zones in the hot water system. One or more of the operational protective zones includes an oxidation-reduction potential probe that is operable to measure a real-time oxidation-reduction potential in the hot water system at operating temperature and pressure. The probe transmits the measured real-time potential to the controller, which assesses and interprets the transmitted potential to determine whether it conforms to an oxidation-reduction potential setting. If the measured potential does not conform the oxidation-reduction potential setting, the controller is operable to feed or remove one or more active chemical species into or from the hot water system and further operable to change at least one system parameter.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: July 8, 2014
    Assignee: Nalco Company
    Inventors: Peter D. Hicks, David A. Grattan
  • Patent number: 8683861
    Abstract: A sensor senses a characteristic of an environment, e.g., humidity. The sensor has a substrate with strips of material that is sensitive to corrosion as a result of the characteristic. The strips are configured to respond differently to the characteristic. By means of repeatedly measuring the resistances of the strips, the environment can be monitored in terms of accumulated exposure to the characteristic. The strips are manufactured in a semiconductor technology so as to generate accurate sensors that behave predictably.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: April 1, 2014
    Assignee: NXP, B.V.
    Inventors: Aurelie Humbert, Youri Victorovitch Ponomarev, Matthias Merz, Romano Hoofman
  • Publication number: 20140057356
    Abstract: The subject disclosure relates to matrix acidizing. More specifically, systems and methods are described for estimating a diffusion coefficient for an acid fluid used to stimulate a subterranean reservoir wherein a spent acid is formulated that includes one or more by-products of the reaction between the fluid and rock. A rock sample, such as in the form of a rotating disk is exposed to spent acid under elevated pressure and temperature conditions while the fluid is sampled and analyzed. A diffusion coefficient for the spend acid is estimated.
    Type: Application
    Filed: August 21, 2013
    Publication date: February 27, 2014
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: XIANGDONG QIU, FRANK F. CHANG
  • Patent number: 8658094
    Abstract: A device for measuring oxidation-reduction potential at operating temperature and pressure in hot water systems is disclosed and claimed. The device includes a flow-through cell, an oxidation-reduction potential probe, a temperature detector, and an external pressure-balanced reference electrode assembly. Each component of the device works in conjunction with the other components and each has electrical connections that transmit signals to a controller. The controller calculates and determines adjustments to feedwater chemistry for the hot water system.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: February 25, 2014
    Assignee: Nalco Company
    Inventors: Peter D. Hicks, M. Alexandra Knoth
  • Patent number: 8658095
    Abstract: A device for measuring oxidation-reduction potential at operating temperature and pressure in hot water systems is disclosed and claimed. The device includes a flow-through cell, an oxidation-reduction potential probe, a temperature detector, and an external pressure-balanced reference electrode assembly. Each component of the device works in conjunction with the other components and each has electrical connections that transmit signals to a controller. The controller calculates and determines adjustments to feedwater chemistry for the hot water system.
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: February 25, 2014
    Assignee: Nalco Company
    Inventors: Peter D. Hicks, M. Alexandra Knoth
  • Publication number: 20130280044
    Abstract: This disclosure describes, in one embodiment, a corrosion monitoring device to monitor fluid flowing to a turbo-machine. The device comprises an elongated body member in the form of a threaded rod. The elongated body member comprises test elements that have material properties responsive to the corrosive components. In one example, the test elements comprise cylindrical tubes that can slide onto the threaded rod. The assembly is positioned in flow streams and, more particularly, finds particular use in the flow stream of fluid found in an inlet system that couples with a turbine (e.g., a gas or steam turbine).
    Type: Application
    Filed: April 20, 2012
    Publication date: October 24, 2013
    Applicant: General Electric Company
    Inventors: Abhijeet Madhukar Kulkarni, William Keith Albert Eyers, Richard Michael Ashley Mann, Mark David Richardson
  • Patent number: 8540936
    Abstract: An erosion sensor that can separately monitor erosion and corrosion of a substrate, such as a wind turbine blade or a turbine blade used in devices such as gas turbines, aircraft engines, microturbines, steam turbines, and the like is disclosed. The sensor can include a first element or “erosion part” that is made of a corrosion resistant material. The first element of the sensor has similar erosion properties to the substrate being monitored. The sensor can further include a second element or a “corrosion part” that is made of a material having similar erosion and corrosion properties to the substrate. The sensor can provide an erosion indicator based on the erosion of the first element and a corrosion indicator based on the erosion and corrosion of the second element.
    Type: Grant
    Filed: October 5, 2011
    Date of Patent: September 24, 2013
    Assignee: General Electric Company
    Inventors: Rebecca Evelyn Hefner, Paul Stephen DiMascio
  • Publication number: 20130236975
    Abstract: A method of tracking the rate of corrosion of a metal conduit traversed by a corrosive fluid, in which is provided a device arranged so as to form, when said device is installed on a wall of the metal conduit, a chamber able to receive gaseous hydrogen issuing by permeation across said wall of said conduit, the method comprising: (i) a step of treatment to eliminate a metallic species from the chamber, (ii) a step of measuring a quantity of hydrogen received in the chamber, with a view to estimating the rate of corrosion of the metal conduit.
    Type: Application
    Filed: April 18, 2011
    Publication date: September 12, 2013
    Applicant: TOTAL RAFFINAGE MARKETING
    Inventors: Xavier Roumeau, Benoit Albinet, Christophe Pelet, Alain Houlier, Lionel Casajus-Gil, Guilhem Frachisse
  • Publication number: 20130224867
    Abstract: Corrosion Under Insulation (CUI) of an insulated iron or other corrosion prone object (1) is detected by taking a sample (8) of the pore fluid from the pores of a permeable insulation layer (2) that covers at least part of the object (1) and analyzing the composition of the sample (8) on the presence of any tracer fluid, such as phospines, mercaptans, alcohols, acids, ketones and/or aldehydes emitted or acetic acid and/or butoxyethanol absorbed by any corrosion of the corrosion prone object (1) by a tracer fluid detection sensor (6).
    Type: Application
    Filed: November 9, 2011
    Publication date: August 29, 2013
    Inventors: Maarten Lorenz, Gerald Sprachmann
  • Patent number: 8521445
    Abstract: Methods and apparatus relate to measuring corrosion rate. Flowing corrosive fluid contacts a metal coupon or object and results in an effluent stream. The effluent stream contains metal from the object due to reaction of constituents in the fluid with the metal. Analysis of the effluent stream measures concentration of the metal therein. Since the concentration of the metal in the effluent stream is indicative of mass loss from the object, calculations provide the corrosion rate utilizing weight of the metal that is eluted, surface area of the object and exposure time of the object with the corrosive fluid.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: August 27, 2013
    Assignee: ConocoPhillips Company
    Inventors: Ricky Eugene Snelling, Donald Ray Engelbert, Omar Jesus Yepez
  • Patent number: 8513020
    Abstract: A system for sulfide stress cracking testing comprises an enclosed testing chamber including a fluid bath comprising a liquid saturated with hydrogen sulfide gas. In addition, the system comprises a test fixture disposed in the testing chamber and at least partially submerged in the fluid bath. The test fixture includes a housing having an internal chamber in fluid communication with the fluid bath and a test assembly disposed in the internal chamber. The test assembly comprises a first upper support and a second upper support, a first lower support and a second lower support, and a first platen engaging each of the upper supports and adapted to transfer an applied vertical load to the upper supports. Further, the system comprises a test specimen mounted in the test assembly between the upper supports and the lower supports.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: August 20, 2013
    Assignee: National Oilwell Varco, L.P.
    Inventors: Lucien Hehn, Kevin J. Wyble, Kenneth E. Casner, Jr., Kenneth E. Casner, Sr., Joseph Casner, George M. Waid
  • Publication number: 20130210154
    Abstract: A hand-device is described for penetrating a heat-insulating layer of a corrodible metal object and for examining a pipeline for corrosion, preferably for penetrating a heat-insulating layer of a corrodible metal pipeline, with a penetrating body that comprises a pointed section for displacing the insulating layer and a holding section for receiving a driving force, and a detecting device for generating a signal as a response to a stimulus caused by corrosion, wherein the detecting device is arranged proximally to the pointed section of the penetrating body. Corresponding methods as well as uses are also described.
    Type: Application
    Filed: June 1, 2011
    Publication date: August 15, 2013
    Applicants: Dow Deutschland Anlagengesellschaft MbH, Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V.
    Inventors: Stefan Dieckhoff, Peter Plagemann, Philippe Vulliet, Manfred Nachbar-Zielinski
  • Patent number: 8501497
    Abstract: The present invention generally relates to methods of constructing liquid bridges and methods of forming predetermined combinations of samples using liquid bridges.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: August 6, 2013
    Assignee: Stokes Bio Limited
    Inventors: Mark Davies, Tara Dalton
  • Publication number: 20130164852
    Abstract: Provided are an atmospheric corrosion test procedure and an apparatus used for the test. The procedure involves a salt spray step for supplying salt content containing chloride ions on the surfaces of test pieces placed in a thermo-humidistat chamber and a subsequent dry-wet cyclic step including a dry sub-step for drying the surface of the test pieces in the thermo-humidistat chamber at a low relative humidity and a subsequent wet sub-step at a higher relative humidity than that in the dry sub-step, which are cycled. The salt content is supplied by spraying the salt water in the salt spray step. An exhaust step for removing the salt mist sprayed inside thermo-humidistat chamber is further inserted between the salt deposition step and the dry sub-step. The quantity of the salt content deposited on the surfaces of the test pieces is controlled by adjusting the quantity of the sprayed salt water.
    Type: Application
    Filed: December 12, 2012
    Publication date: June 27, 2013
    Applicant: HITACHI, LTD.
    Inventor: Hitachi, Ltd.
  • Publication number: 20130149195
    Abstract: Corrosion sensor apparatus for detection of contamination affecting metal based components and devices. For example, an apparatus includes: a set of corrosion sensor elements, wherein a width of a first corrosion sensor element is different than a width of a second corrosion sensor element, wherein each corrosion sensor element is susceptible to corrosion caused by an operating environment of the corrosion sensor elements; and a set of reference elements wherein a width of a first reference sensor element is substantially equal to the width of the first corrosion sensor element and a width of a second reference sensor element is substantially equal to the width of the second corrosion sensor element, wherein each reference sensor element is not substantially susceptible to corrosion caused by the operating environment of the corrosion sensor elements.
    Type: Application
    Filed: February 6, 2013
    Publication date: June 13, 2013
    Applicant: International Business Machines Corporation
    Inventor: International Business Machines Corporation
  • Publication number: 20130109099
    Abstract: A method of testing workpieces and an automated oscillating solution spray manifold assembly for a corrosion testing chamber is configured to introduce a fluid into a cavity of a test cabinet that receives workpieces. The manifold assembly includes a motor having an output shaft for driving a linkage assembly. An elongated spray bar is connected to the linkage assembly and the spray bar has a plurality of openings spaced therealong. The linkage assembly is configured to rotate the spray bar in a desired oscillatory movement such that fluid can be dispensed through the openings and into the test cabinet. A fan-like pattern sprays from one opening and substantially overlaps with spray from at least one adjacent opening. The method of testing may include one or more of the steps of controlling a speed of the motor, a temperature level of the cavity, a humidity level of the cavity, and a salinity content of the fluid within the cavity of the test cabinet.
    Type: Application
    Filed: September 19, 2012
    Publication date: May 2, 2013
    Applicant: THE SINGLETON CORPORATION
    Inventor: The Singleton Corporation
  • Patent number: 8418537
    Abstract: A method for detecting the presence of corrosive material in drywall utilizing a testing device having a metal pin for insertion in the drywall, where the pin forms a visible layer when it reacts with corrosive materials in the drywall.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: April 16, 2013
    Assignee: Environ International Corp.
    Inventor: Thomas D. Gauthier
  • Publication number: 20130089463
    Abstract: An erosion sensor that can separately monitor erosion and corrosion of a substrate, such as a wind turbine blade or a turbine blade used in devices such as gas turbines, aircraft engines, microturbines, steam turbines, and the like is disclosed. The sensor can include a first element or “erosion part” that is made of a corrosion resistant material. The first element of the sensor has similar erosion properties to the substrate being monitored. The sensor can further include a second element or a “corrosion part” that is made of a material having similar erosion and corrosion properties to the substrate. The sensor can provide an erosion indicator based on the erosion of the first element and a corrosion indicator based on the erosion and corrosion of the second element.
    Type: Application
    Filed: October 5, 2011
    Publication date: April 11, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Rebecca Evelyn Hefner, Paul Stephen DiMascio
  • Publication number: 20130087328
    Abstract: A disclosed downhole optical sensor system includes at least one optical sensor positioned in a borehole and coupled to an interface via a fiber optic cable. Each of the optical sensors includes a waveguide for conducting light, and a reagent region positioned between the waveguide and a fluid in the borehole to absorb a portion of the light from the waveguide, the portion being dependent upon a concentration of a chemical species in the fluid. A described method for operating a well includes deploying one or more downhole optical sensors in a fluid flow path in the well, probing the one or more downhole optical sensors from a surface interface to detect concentrations of one or more chemical species, and deriving a rate of scale buildup or corrosion based at least in part on the detected concentrations.
    Type: Application
    Filed: October 5, 2011
    Publication date: April 11, 2013
    Applicant: Halliburton Energy Services, Inc.
    Inventors: John L. Maida, JR., Etienne M. Samsom, Rory D. Daussin, Thomas D. Welton
  • Patent number: 8409505
    Abstract: A sensor-dispensing instrument adapted to handle a sensor pack contains sensors and performs a test using one of the sensors. The instrument includes an outer housing and a mechanical mechanism for rotating the sensor pack and ejecting one of the sensors from the sensor pack and through a sensor slot on the housing. The instrument also includes a sensor actuator to engage with a sensor disposed in the sensor slot, and a sensor release that is movable to disengage the sensor actuator from the sensor disposed in the sensor slot and permit the discharge of the sensor. The sensor release activates a sensor release mechanism that has a sensor release aid arm, a mounting block, and a pivot pin. The sensor release aid arm contacts the sensor disposed in the sensor slot to assist removal of the sensor from the sensor slot.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: April 2, 2013
    Assignee: Bayer HealthCare LLC
    Inventors: Bruce A. Flora, John P. Creaven, Russell J. Micinski
  • Patent number: 8382968
    Abstract: A conductor/insulator/porous film device is provided which is used in electrochemiluminescence methods and instrumentation based on the chemical excitation of label molecules with subsequent measurement of the luminescence in order to quantitate analyte concentrations especially in bioaffinity assays.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: February 26, 2013
    Assignee: Labmaster Ltd.
    Inventors: Timo Väinö Kalevi Ala-Kleme, Jarkko Uolevi Eskola, Timo Kalevi Korpela, Sakari Mikael Kulmala, Piia Kaarina Mäkinen
  • Patent number: 8261601
    Abstract: The described invention relates to a method for determining corrosion in wet gas pipelines comprising: a) using a portion of the liquid phase from a wet gas pipeline; b) placing said portion in a high pressure, high temperature autoclave to prepare a saturated vapor phase; c) transferring the saturated vapor to a corrosion test unit, said unit having a specimen holder section having external, temperature adjustable means, and specimens being arranged in one or more positions within the specimen holder; d) chilling said specimen holder section so as to cause condensation onto said corrosion testing specimens; and, e) calculating a value selected from the group consisting of corrosions rate, pitting of the specimen, weight loss of the specimen, and any combination thereof. The invention process can be practiced in a separate laboratory apparatus designed to accomplish the above method, or in a similar online apparatus set up in a semi-batch mode or continuous mode.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: September 11, 2012
    Assignee: ExxonMobil Upstream Research Company
    Inventors: Joseph W. Stolle, Dylan V. Pugh, David A. Norman, Wei Sun
  • Patent number: 8241575
    Abstract: A molecularly imprinted polymer sensor device for detecting the presence of a taggant molecular structure in a fluid is disclosed. The molecularly imprinted polymer sensor device comprises a molecularly imprinted crosslinked polymer having a crosslinked core and a plurality of polymer arms attached to the core, wherein the core has molecular sized cavities adapted to selectively receive and bind displacement molecules having the taggant molecular structure and a colorimetric indicator, said displacement molecule being selectively removed from the molecularly imprinted crosslinked polymer and replaced with the taggant molecular structure upon exposure to the fluid containing the taggant molecular structure therein, thereby indicating the presence of the taggant molecular structure in the fluid.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: August 14, 2012
    Assignee: The Johns Hopkins University
    Inventors: George M. Murray, Andrew F. Mason, Edward W. Ott, Jr.
  • Patent number: 8197750
    Abstract: The invention relates to devices and methods for the identification of test tubes in a test tube rack using RFID technology.
    Type: Grant
    Filed: January 16, 2009
    Date of Patent: June 12, 2012
    Assignee: Roche Molecular Systems, Inc.
    Inventors: Heinz Trueeb, Armin Birrer, Thomas Brauner
  • Patent number: 8153057
    Abstract: Disclosed is a method of controlling a real-time oxidation-reduction potential in a hot water system to inhibit corrosion in the hot water system. The method includes defining one or more operational protective zones in the hot water system. One or more of the operational protective zones includes an oxidation-reduction potential probe that is operable to measure a real-time oxidation-reduction potential in the hot water system at operating temperature and pressure. The probe transmits the measured real-time potential to the controller, which assesses and interprets the transmitted potential to determine whether it conforms to an oxidation-reduction potential setting. If the measured potential does not conform the oxidation-reduction potential setting, the controller is operable to feed one or more active chemical species into the hot water system.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: April 10, 2012
    Assignee: Nalco Company
    Inventors: Peter D. Hicks, David A. Grattan
  • Publication number: 20120074969
    Abstract: A non-metallic coupon holder assembly comprising a non-metallic support structure and a plurality of coupon holders. The pluralities of coupon holders are disposed throughout the non-metallic support structure wherein the pluralities of coupon holders are designed to secure a metal coupon on at least two edges.
    Type: Application
    Filed: September 19, 2011
    Publication date: March 29, 2012
    Applicant: CONOCOPHILLIPS COMPANY
    Inventors: Ricky Eugene Snelling, Donald Ray Engelbert
  • Patent number: 8105533
    Abstract: The present invention provides a corrosion loss measuring apparatus which enables to quantitatively determine corrosion loss characteristics of ceramic materials and heat-resistant metallic materials, which is excellent in terms of safety, cost, and operation easiness, and whose size can be reduced. The invention also provides a method for measuring corrosion loss by use of the apparatus.
    Type: Grant
    Filed: September 1, 2005
    Date of Patent: January 31, 2012
    Assignee: Central Research Institute of Electric Power Industry
    Inventors: Tohru Hisamatsu, Isao Yuri
  • Patent number: 8101126
    Abstract: A sensor-dispensing instrument (10) adapted to handle a sensor pack containing a plurality of sensors and to perform a test using one of the sensors. The sensor-dispensing instrument includes an outer housing (12) and a mechanical mechanism contained therein for rotating the sensor pack and ejecting one of the sensors from the sensor pack and through a sensor slot on the housing. The sensor-dispensing instrument also includes a sensor actuator to engage with a sensor disposed in the sensor slot, and a sensor release (66) that is movable to disengage the sensor actuator from the sensor disposed in the sensor slot and permit the discharge of the sensor the sensor release additionally activating a sensor release mechanism that has a sensor release aid arm, a mounting block, and a pivot pin that connects the sensor release aid arm to the mounting block, wherein the sensor release aid arm is adapted to contact the sensor disposed in the sensor slot to assist removal of the sensor from the sensor slot.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: January 24, 2012
    Assignee: Bayer HealthCare LLC
    Inventors: Bruce A. Flora, John P. Creaven, Russell J. Micinski
  • Patent number: 8033164
    Abstract: The present invention relates to an apparatus and method as described in the specification and drawings for parallel high throughput corrosion testing and electroplating testing of test coupons.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: October 11, 2011
    Assignee: Dow Global Technologies LLC
    Inventors: Daniel L. Dermody, Keith Harris, David A. Hayes
  • Patent number: 8007655
    Abstract: A method and system for determining chemical properties of a fluid. The method and system include providing a weak electrolyte fluid, a container for the fluid, a detection method performed by a device having at least two electrodes, a detection and amplification device coupled to the electrodes and a sensed current compared to an uncontaminated, base fluid or compared to data characteristic of fluid contaminated or chemically changed in order to monitor and characterize the fluid.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: August 30, 2011
    Assignee: Georgia Tech Research Corporation
    Inventors: Steven Danyluk, Francis Mess, Sergey Tereshko, Anatoly Zharin
  • Publication number: 20110136239
    Abstract: A system for sulfide stress cracking testing comprises an enclosed testing chamber including a fluid bath comprising a liquid saturated with hydrogen sulfide gas. In addition, the system comprises a test fixture disposed in the testing chamber and at least partially submerged in the fluid bath. The test fixture includes a housing having an internal chamber in fluid communication with the fluid bath and a test assembly disposed in the internal chamber. The test assembly comprises a first upper support and a second upper support, a first lower support and a second lower support, and a first platen engaging each of the upper supports and adapted to transfer an applied vertical load to the upper supports. Further, the system comprises a test specimen mounted in the test assembly between the upper supports and the lower supports.
    Type: Application
    Filed: December 7, 2010
    Publication date: June 9, 2011
    Applicant: NATIONAL OILWELL VARCO, L.P.
    Inventors: Lucien Hehn, Kevin J. Wyble, Kenneth E. Casner, JR., Kenneth E. Casner, SR., Joseph Casner, George M. Waid
  • Patent number: 7943091
    Abstract: A chemical exposure indication device is disclosed. The device is removably attachable to a structure and includes a substrate having a first surface and a second surface and an indicating layer overlying the first substrate surface. The indicating layer includes a coating material that is chemically reactive with a pre-determined chemical compound that is known to degrade the structure. When the coating material is exposed to that corrosive compound in a pre-determined level associated with degradation of a metallic structure, the coating material provides a visual indication of the presence of the corrosive compound.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: May 17, 2011
    Assignee: The Boeing Company
    Inventors: Carl W. Beck, Rebecca L. Storey
  • Publication number: 20110053275
    Abstract: A corrosion detection product is a coating including a film forming material and a complexing agent, the complexing agent forming a complex when it comes into contact with a corrosion byproduct produced by corrosion of a substrate on which the coating is applied, the complex being detectably different from the complexing agent when the coating is exposed to radiation in order to detect the corrosion, the complexing agent being immobilized in the coating to reduce leaching of the complexing agent or the complex from the coating.
    Type: Application
    Filed: April 9, 2009
    Publication date: March 3, 2011
    Inventors: Ramanathan S. Lalgudi, Barry L. McGraw, Robert J. Cain
  • Publication number: 20100151577
    Abstract: A detection method and indicator are disclosed that includes quantum dots that fluoresce under illumination of a first light having a first wavelength to indicate the presence of a predetermined condition, and in particular, a corrosion condition. The quantum dots are surrounded by a shell material that under normal conditions reflect the first light and reacts in the presence of the predetermined condition to permit the first light to illuminate the quantum dot to excite the quantum dot to emit a second light having a second wavelength, which when detected, indicates the presence of the predetermined condition.
    Type: Application
    Filed: December 16, 2008
    Publication date: June 17, 2010
    Applicant: THE BOEING COMPANY
    Inventors: Keith J. DAVIS, Nicole L. DEHUFF, Morteza SAFAI
  • Patent number: 7655185
    Abstract: Provided is a polymer sample analyzer from which chemical findings on the optical deterioration of a polymer material are available in a very short time. The analyzer is equipped with a gas phase component production unit for producing a plurality of gas phase components, a carrier gas introduction unit for introducing a carrier gas into the gas phase component production unit, a separation unit for separating the gas phase components into each component, and a detection unit 5 for detecting the each component thus separated. The analyzer is equipped further with a UV irradiation unit for exposing the polymer sample to UV ray, an atmospheric gas introduction unit for introducing an atmospheric gas into the gas phase component production unit and a gas switching unit for switching a gas to be introduced into the separation unit between the carrier gas and the atmospheric gas.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: February 2, 2010
    Assignee: Frontier Laboratories Ltd.
    Inventor: Chuichi Watanabe
  • Patent number: 7628060
    Abstract: A deposit removal probe for monitoring the effectiveness of a chemical at removing deposits from the internal surface of a pipeline used to transport fluids comprising a chamber constructed from mesh having a pore size sufficient to retain a sample of said deposit in said chamber while also allowing the deposit to be removed from the chamber with the action of the chemical and liquid flow through the pipeline and methods of using the probe to determine the effectiveness of a chemical at removing deposits from the internal surface of a pipeline and monitor corrosion rates of surfaces in contact with the deposit and in the bulk fluid.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: December 8, 2009
    Assignee: Nalco Company
    Inventor: David I. Horsup
  • Publication number: 20090274578
    Abstract: An apparatus and method for measuring and monitoring the corrosion potential of engineering alloys used in aqueous systems is disclosed and claimed. The method is applicable for a variety of alloys including, but not limited to, copper-based, iron-based, nickel-based, other metallic-based alloys, and their combinations. The corrosion potential is typically determined by measuring a voltage between a specific material in the described oxidation-reduction potential measuring device and a reference electrode. Corrosion potentials for specific materials of construction may be used for diagnostic or control purposes.
    Type: Application
    Filed: May 2, 2008
    Publication date: November 5, 2009
    Inventor: Peter D. Hicks
  • Patent number: 7581457
    Abstract: An apparatus for performing tests on materials, the apparatus comprising a leaktight receptacle defining an inside volume, the receptacle being provided with an opening and the ability to provide leaktight contact between the edges of the opening and a portion of a surface of a test piece of a material disposed outside the receptacle. The receptacle also has the ability for introducing at least one chemical agent in order to create, within the inside volume, a test chemical environment to which the surface portion of the test piece is exposed; and with a drain for draining the introduced chemical agent(s). The receptacle is also provided with a bottom including a surface that is inclined or conical and that co-operates with the drain to enable the introduced chemical agent(s) to be removed totally or in part. The apparatus is used in a method for carrying out tests on materials.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: September 1, 2009
    Assignee: Agence Spatiale Europeenne
    Inventor: Giancarlo Bussu