Vapor Pressure Patents (Class 73/64.45)
  • Patent number: 9163527
    Abstract: A system for reducing moisture in a burner pressure sensing line in a gas turbine engine. A water trap is mounted on the burner pressure sensing line with an inlet for receiving burner pressure air and an outlet for transferring burner pressure air to the sensor. A heat sink is positioned inside the water trap for condensing moisture contained in the burner pressure air. Finned tubes are used to passively control the temperature of the burner pressure line. A deadheaded chamber provides an alternative location for the moist air to condense when the gas is compressed at higher pressure.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: October 20, 2015
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Thomas O. Harris
  • Patent number: 9155833
    Abstract: Systems and methods for monitoring the use of a fluid over the lifecycle of the fluid, said systems including a plurality of fluid identification stations, each station having one or more sensors to detect and identify a parameter of a fluid, wherein a each station is operably interconnected thereby permitting each station to access and verify the identity of a fluid as determined by each independent fluid identification station.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: October 13, 2015
    Assignee: Becton, Dickinson and Company
    Inventors: Elizabeth Nelson, David Feygin, Richard Byrd, Bart D. Peterson, Karthik Ranganathan, Weston F. Harding, Ralph L. Sonderegger, William R. Marshall
  • Patent number: 8555967
    Abstract: Disclosed are spacer fluids and methods of use in subterranean formations. Embodiments may include use of consolidating spacer fluids in displacement of drilling fluids from a well bore annulus. Embodiments may include determining the boundary between a cement composition and a consolidating spacer fluid based on presence of tagging material in the well bore.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: October 15, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jiten Chatterji, Ronnie G. Morgan, Craig W. Roddy, James R. Benkley, D. Chad Brenneis
  • Patent number: 8335650
    Abstract: Example methods and apparatus to determine phase-change pressures are disclosed. A disclosed example method includes capturing a fluid in a chamber, pressurizing the fluid at a plurality of pressures, measuring a plurality of transmittances of a signal through the fluid at respective ones of the plurality of pressures, computing a first magnitude of a first subset of the plurality of transmittances, computing a second magnitude of a second subset of the plurality of transmittances, comparing the first and second magnitudes to determine a phase-change pressure for the fluid.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: December 18, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Kai Hsu, Kentaro Indo, Peter S. Hegeman, Carsten Sonne
  • Publication number: 20120266663
    Abstract: A device for measuring the activity of a liquid in a complex medium and an associated method, the device comprising a sealed enclosure in which the complex medium is intended to be placed and means for maintaining this enclosure at a constant temperature T, characterized in that it comprises: a means (14) for modifying the total volume of the enclosure; a pressure sensor (22) for measuring the total pressure in the enclosure; and means (24) for calculating the activity of the liquid in the complex medium from the temperature T, from the total volume of the enclosure and from the total pressure in the enclosure.
    Type: Application
    Filed: November 4, 2010
    Publication date: October 25, 2012
    Applicants: UNIVERSITE MONTPELLIER 2 - SCIENCES ET TECHNIQUES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Jean-Claude Benet, Bruno Cousin, Fabien Cherblanc, Samuel Ouoba
  • Patent number: 8283174
    Abstract: A formation fluid sampling tool is provided with reactants which are carried downhole and which are combined in order to generate heat energy which is applied to the formation adjacent the borehole. By applying heat energy to the formation, the formation fluids are heated, thereby increasing mobility, and fluid sampling is expedited.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: October 9, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Ronald E. G. Van Hal, Anthony Goodwin, Oliver C. Mullins, Peter S. Hegeman, Bhavani Raghuraman, Soraya S. Betancourt, Cosan Ayan, Ricardo Vasques, Francois Xavier Dubost, Christopher Scott Del Campo
  • Patent number: 8268629
    Abstract: A system and method for characterizing a liquid hydrocarbon fuel having unknown or variable composition is described and shown herein.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: September 18, 2012
    Assignee: dTEC Systems L.L.C.
    Inventors: Thomas Coleman, Frederick Wolf, James E Bruya
  • Patent number: 8215158
    Abstract: A procedure for determining the vapor pressure of a fuel in a tank is provided, whereby the sound velocity and/or a variable representing the sound velocity are determined the in the gas-filled compartment of the tank and the vapor pressure is assumed from the sound velocity and/or from the variable representing the sound velocity at a familiar total pressure.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: July 10, 2012
    Assignee: Robert Bosch GmbH
    Inventor: Martin Streib
  • Patent number: 8017081
    Abstract: A system and method of measuring the effective temperature inside a sealed container having a headspace is provided. A liquid solvent is added to the container, and a solid compound is added to the liquid solvent to create a saturated solution. Vapor of the saturated solution is allowed to equilibrate in the headspace of the sealed container, and a volume thereof is transferred to a chromatographic column, where chromatographic readings of the equilibrated vapor are taken. A temperature within the sealed container is then calculated based upon the chromatographic readings of the equilibrated vapor, wherein the temperature calculation is based upon the concentrations of the liquid solvent and the solid compound in the equilibrated vapor.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: September 13, 2011
    Assignee: PerkinElmer Health Sciences, Inc.
    Inventor: Andrew Tipler
  • Patent number: 7997122
    Abstract: The present invention is directed to an analyzer for measuring the vapor pressure of a hydrocarbon liquid. The analyzer includes a pressure measuring system connected to an air saturation system having a circulation chamber with opposing first and second ends. A first opening is disposed toward the first end and a second opening is disposed toward the second end. A plumbing system connects the first and second openings. A pump moves the hydrocarbon liquid through the plumbing system from the first opening to the second opening so as to saturate the hydrocarbon liquid with air. The air saturation system has a cooler for cooling the hydrocarbon liquid and the pressure measuring system has a heater for heating the hydrocarbon liquid. The pump may be a piston actuated pump or a motor-driven pump and the plumbing system may include an aeration chamber.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: August 16, 2011
    Assignee: ABB Inc.
    Inventors: Thomas J. Thomas, Terry E. Davis
  • Patent number: 7966864
    Abstract: Method for ascertaining an ethanol content of a fuel with the steps: ascertaining the vapor pressure of the fuel, ascertaining the temperature of the fuel and ascertaining the ethanol content of the fuel as a function of the vapor pressure and the temperature, which were ascertained.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: June 28, 2011
    Assignee: Robert Bosch GmbH
    Inventor: Peter Roth
  • Patent number: 7902306
    Abstract: Methods for polymerization of an olefin monomer and polymers formed therefrom are described herein.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: March 8, 2011
    Assignee: Total Petrochemicals Research Feluy
    Inventor: Giacomo Conti
  • Publication number: 20100139778
    Abstract: A fuel vapor pressure measuring apparatus includes a fuel vapor generator configured to allow the fuel pressure-fed from the fuel pump to be injected from a nozzle and pass through a venturi, thereby vaporizing the fuel in a vaporizing chamber, a pressure sensor for detecting fuel vapor pressure in the vaporizing chamber, a temperature sensor for detecting fuel vapor temperature in the vaporizing chamber, a temperature regulator for regulating the fuel vapor temperature in the vaporizing chamber, and an electronic control unit (ECU) adapted to operate the fuel pump and the fuel vapor generator and also operate the temperature regulator, to detect temperatures at plural points through the temperature sensor and detect pressures corresponding to the temperatures through the pressure sensor in the process of operation of the temperature regulator, and to calculate fuel vapor pressure characteristics based on the detected temperatures and pressures at the plural points.
    Type: Application
    Filed: November 5, 2009
    Publication date: June 10, 2010
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Nobuhiro Kato, Masaki Ikeya
  • Publication number: 20100024528
    Abstract: A procedure for determining the vapor pressure of a fuel in a tank is provided, whereby the sound velocity and/or a variable representing the sound velocity are determined the in the gas-filled compartment of the tank and the vapor pressure is assumed from the sound velocity and/or from the variable representing the sound velocity at a familiar total pressure.
    Type: Application
    Filed: May 14, 2009
    Publication date: February 4, 2010
    Inventor: Martin Streib
  • Publication number: 20100018295
    Abstract: A state sensor for plants comprises a clamping device with two clamping elements for clamping a part of a plant. A plant parameter measuring device is coupled mechanically to the clamping device and comprises a sensor element. Said sensor element is configured as a pressure sensor element arranged on one of the clamping elements for detecting a pressure state value of the plant, which pressure state value is independent of the displacement of the clamping elements relative to one another. A watering system has at least one state sensor of this type. A reliable determination of the watering state is obtained over a long period of time and at a low cost.
    Type: Application
    Filed: September 12, 2007
    Publication date: January 28, 2010
    Applicant: RAUMEDIC AG
    Inventor: Gerd Kunze
  • Patent number: 7628057
    Abstract: A system that allows an operator to determine the true vapor pressure of a liquid composition from the bubble-point pressure for a given temperature at which the lightest component starts to flash includes a heated chamber with a retractable plunger. A sample of the liquid to be tested is trapped in a chamber at a pressure above the bubble-point pressure. A plunger inserted into the chamber gradually reduces the chamber internal pressure by retracting the plunger out of the chamber at a uniform (synchronous) speed from the start to the resting plunger rod position. The chamber pressure is recorded at each pressure increment reduction. The bubble point-pressure is determined from the point of inflection in the pressure decline curve.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: December 8, 2009
    Inventor: Ahmad G. Solomon
  • Publication number: 20090188306
    Abstract: The present invention is directed to an analyzer for measuring the vapor pressure of a hydrocarbon liquid. The analyzer includes a pressure measuring system connected to an air saturation system having a circulation chamber with opposing first and second ends. A first opening is disposed toward the first end and a second opening is disposed toward the second end. A plumbing system connects the first and second openings. A pump moves the hydrocarbon liquid through the plumbing system from the first opening to the second opening so as to saturate the hydrocarbon liquid with air. The air saturation system has a cooler for cooling the hydrocarbon liquid and the pressure measuring system has a heater for heating the hydrocarbon liquid. The pump may be a piston actuated pump or a motor-driven pump and the plumbing system may include an aeration chamber.
    Type: Application
    Filed: August 1, 2008
    Publication date: July 30, 2009
    Applicant: ABB INC.
    Inventors: Thomas J. Thomas, Terry E. Davis
  • Publication number: 20090064767
    Abstract: Method for ascertaining an ethanol content of a fuel with the steps: ascertaining the vapor pressure of the fuel, ascertaining the temperature of the fuel and ascertaining the ethanol content of the fuel as a function of the vapor pressure and the temperature, which were ascertained.
    Type: Application
    Filed: September 8, 2008
    Publication date: March 12, 2009
    Applicant: Robert Bosch GmbH
    Inventor: Peter ROTH
  • Patent number: 7458252
    Abstract: A fluid analysis assembly for analyzing a fluid the fluid analysis assembly includes a chamber, a fluid movement device, a pressurization assembly and at least one sensor. The chamber defines an evaluation cavity for receiving the fluid. The fluid movement device has a force medium applying force to the fluid to cause the fluid to move within the cavity. The pressurization assembly changes the pressure of the fluid in a continuous manner. The at least one sensor communicates with the fluid for sensing at least one parameter of the fluid while the pressure of the fluid is changing in the continuous manner.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: December 2, 2008
    Assignee: Schlumberger Technology Corporation
    Inventors: Darcy Freemark, Craig Borman, Ahmed Hammami, Moin Muhammed, Scott Jacobs, Jonathan W. Brown, Andrew L. Kurkjian, Chengli Dong, Brindesh Dhruva, Kenneth L. Havlinek, Anthony R. H. Goodwin
  • Patent number: 7459313
    Abstract: A method of measuring the effective temperature inside a sealed container having a headspace is provided. A liquid solvent is added to the container, and a solid compound is added to the liquid solvent to create a saturated solution. Vapor of the saturated solution is allowed to equilibrate in the headspace of the sealed container, and a volume thereof is transferred to a chromatographic column, where chromatographic readings of the equilibrated vapor are taken. A temperature within the sealed container is then calculated based upon the chromatographic readings of the equilibrated vapor, wherein the temperature calculation is based upon the concentrations of the liquid solvent and the solid compound in the equilibrated vapor.
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: December 2, 2008
    Assignee: PerkinElmer LAS, Inc.
    Inventor: Andrew Tipler
  • Patent number: 6779378
    Abstract: A method for monitoring the capability of a source container comprising liquid or solid source material to produce vaporized source material comprises extracting vaporized source material from the source container. The source container is then isolated and a property indicative of the partial pressure of the vaporized source material is then measured as a function of time. The partial pressure (or property indicative thereof) as a function of time is compared with a reference partial pressure as a function of time. An alarm is generated when the difference between the measured property (indicative of partial pressure) as a function of time and the reference property value as a function of time is larger than a predetermined property difference limit. The property can be, for example, overall pressure or source material concentration in the gas phase.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: August 24, 2004
    Assignee: ASM International N.V.
    Inventor: Niklas Bondestam
  • Patent number: 6276196
    Abstract: A sensor for sensing in a gas stream a vapor of a liquid. The sensor includes a micropore and a wet temperature sensor. The micropore has an evaporation end and has a lumen to conduct liquid from a supply of the liquid for evaporation at the evaporation end. The wet temperature sensor has a heat sensitive part in contact with the liquid in the micropore. The heat sensitive part circumscribes the micropore and forms part of the lumen. Heat loss due to evaporation of the liquid when the wet temperature sensor wet with the liquid is placed in the gas stream will result in the temperature sensed by the wet temperature sensor being lower than the non-evaporative temperature of the gas stream. This lowering in temperature can be measured to determine the concentration of the vapor in the gas stream. An example of such a sensor has a thermocouple junction having micropores passing through the thermocouple junction.
    Type: Grant
    Filed: December 7, 2000
    Date of Patent: August 21, 2001
    Assignee: Agilent Technologies, Inc.
    Inventors: Ganapati R. Mauze, Michael Greenstein, Paul Lum, Hewlett E. Melton, Jr.
  • Patent number: 6202480
    Abstract: A sensor for sensing in a gas stream a vapor of a liquid. The sensor includes a micropore and a wet temperature sensor. The micropore has an evaporation end and has a lumen to conduct liquid from a supply of the liquid for evaporation at the evaporation end. The wet temperature sensor has a heat sensitive part in contact with the liquid in the micropore. The heat sensitive part circumscribes the micropore and forms part of the lumen. Heat loss due to evaporation of the liquid when the wet temperature sensor wet with the liquid is placed in the gas stream will result in the temperature sensed by the wet temperature sensor being lower than the non-evaporative temperature of the gas stream. This lowering in temperature can be measured to determine the concentration of the vapor in the gas stream. An example of such a sensor has a thermocouple junction having micropores passing through the thermocouple junction.
    Type: Grant
    Filed: April 2, 1998
    Date of Patent: March 20, 2001
    Assignee: Agilent Technologies, Inc.
    Inventors: Ganapati R. Mauze, Michael Greenstein, Paul Lum, Hewlett E. Melton, Jr.