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| Number | Title | Issue Date |
| 7997122 | Reid vapor pressure analyzer with an air saturator 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 fir... | 08/16/2011 |
| 7628057 | Apparatus and method for determining vapor pressure of multi-component liquids 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... | 12/08/2009 |
| 7458252 | Fluid analysis method and apparatus 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 ha... | 12/02/2008 |
| 7357033 | Manual resuscitators with integral manometer A manometer integrated into a manual resuscitator includes a housing with a communication path, and a pressure gauge integrally forming part of the housing. A sensing chamber and an atmospheric chamber are separated by a diaphragm subject to distortion by differenti... | 04/15/2008 |
| 7275417 | Fueling system vapor recovery and containment performance monitor and method of operation thereof A method and apparatus for monitoring and determining fuel vapor recovery performance is disclosed. The dispensing of liquid fuel into a tank by a conventional gas pump nozzle naturally displaces a mixture of air and fuel ullage vapor in the tank. These displaced va... | 10/02/2007 |
| 7231305 | Flow rate determination A method for determining the bubble point pressure and the true flow rate of a fluid in a flow line of a flowing well is provided, wherein the method includes modifying fluid pressure in a predetermined region of the flow line, generating pressure data responsive to... | 06/12/2007 |
| 7086276 | Temperature correction method and subsystem for automotive evaporative leak detection systems A method and sensor or sensor subsystem permit improved evaporative leak detection in an automotive fuel system. The sensor or sensor subsystem computes temperature-compensated pressure values, thereby eliminating or reducing false positive or other adverse results ... | 08/08/2006 |
| 7070738 | Analyzer with variable volume ballast chamber and method of analysis An analyzer having a combustion furnace includes a gas flow stream including a combustion detector in the stream of byproducts of combustion and a variable volume ballast chamber for receiving byproducts of combustion and which has a movable piston which moves in re... | 07/04/2006 |
| 7051596 | Manual resuscitators with integral manometer A manometer integrated into a manual resuscitator includes a housing with a communication path, and a pressure gauge integrally forming part of the housing. A sensing chamber and an atmospheric chamber are separated by a diaphragm subject to distortion by differenti... | 05/30/2006 |
| 7040301 | Fuel system with integrated pressure management A fuel system supplying fuel to an internal combustion engine of a vehicle. The fuel system includes an integrated pressure management system managing pressure and detecting leaks in the fuel system. The integrated pressure management system also performs a leak dia... | 05/09/2006 |
| 7032444 | Module for extracting gas from an underground liquid and installation equipped therewith This invention concerns a module for extracting samples in gas phase of compounds present in an underground working liquid, the extractor module including a receptacle for the liquid, associated with a device for stirring the liquid, a liquid inlet duct, a liquid ev... | 04/25/2006 |
| 7025084 | Integrated pressure management system for a fuel system An integrated pressure management system manages pressure and detects leaks in a fuel system. The integrated pressure management system also performs a leak diagnostic for the head space in a fuel tank, a canister that collects volatile fuel vapors from the head spa... | 04/11/2006 |
| 6968868 | Fueling system vapor recovery and containment performance monitor and method of operation thereof A method and apparatus for monitoring and determining fuel vapor recovery performance. The dispensing of liquid fuel into a tank by a gas pump nozzle displaces a mixture of air and fuel ullage vapor in the tank. These displaced vapors may be recovered at the dispens... | 11/29/2005 |
| 6964283 | Fueling system vapor recovery and containment performance monitor and method of operation thereof A method and apparatus for monitoring and determining fuel vapor recovery performance is disclosed. The dispensing of liquid fuel into a tank by a conventional gas pump nozzle naturally displaces a mixture of air and fuel ullage vapor in the tank. These displaced va... | 11/15/2005 |
| 6931919 | Diagnostic apparatus and method for an evaporative control system including an integrated pressure management apparatus A diagnostic appartus and method for a fuel system that supplies fuel to an internal combustion engine. The fuel system includes a fuel tank that has a headspace and a filler occluded by a removable cap, a charcoal canister in fluid communication with the headspace,... | 08/23/2005 |
| 6910500 | Integrated pressure management system for a fuel system An integrated pressure management system manages pressure and detects leaks in a fuel system. The integrated pressure management system also performs a leak diagnostic for the head space in a fuel tank, a canister that collects volatile fuel vapors from the head spa... | 06/28/2005 |
| 6901786 | Fueling system vapor recovery and containment leak detection system and method A method and apparatus for monitoring a fuel vapor recovery system to determine if a leak condition exists in either the vapor return passage in a fuel dispenser or a common vapor return pipe. An air-flow sensor (AFS) may be located in the common vapor return pipe f... | 06/07/2005 |
| 6779378 | Method of monitoring evaporation rate of source material in a container 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 propert... | 08/24/2004 |
| 6276196 | Thermometric vapor sensor with evaporation surface having micropores 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 e... | 08/21/2001 |
| 6202480 | Thermometric vapor sensor with evaporation surface having micropores 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 e... | 03/20/2001 |
| 5889202 | System for continuous analysis and modification of characteristics of a liquid hydrocarbon stream Apparatus and method for continuous analysis and/or modification of the vapor pressure characteristics of a hydrocarbon stream includes: liquid/gas separation chamber; constant flow liquid influent means; liquid level sensing means; temperature control me... | 03/30/1999 |
| 5663492 | System for continuous analysis and modification of characteristics of a liquid hydrocarbon stream Apparatus and method for continuous analysis and/or modification of the vapor pressure characteristics of a hydrocarbon stream includes: liquid/gas separation chamber; constant flow liquid influent means; liquid level sensing means; temperature control me... | 09/02/1997 |
| 5637791 | Method and apparatus for measuring vapor pressure of multicomponent liquids An online vapor pressure analyzer that determines continuously and not in batch mode, the vapor pressure of a sidestream sample composed of a single compound liquid having a single vapor pressure or a mixture of liquid compounds having different vapor pre... | 06/10/1997 |
| 5563339 | Self-correcting autocalibrating vapor pressure analyzer A self-correcting autocalibrating analyzer for the direct determination of liquid vapor pressure and determination of the temperature at which a given ratio of vapor to liquid will exert a predetermined pressure in a container of predetermined volume. Tes... | 10/08/1996 |
| 5505074 | Apparatus and method for determining minimum miscibility pressure An apparatus and method for determining the minimum miscibility pressure of a system comprising a gas and a liquid. A liquid-filled tube is equilibrated at a predetermined temperature and initial pressure, and pressure changes are determined as a single g... | 04/09/1996 |
| 5499531 | System and method for determining volatile constituents, vapor pressure and vapor emissions of liquids A system (100) is provided for calculating the vapor pressure for a liquid whose composition is unknown. The liquid to be tested is passed through a gas/liquid separator (120) at a substantially constant flow rate and at a predetermined temperature and pr... | 03/19/1996 |
| 5367901 | Aircraft analyzer to determine maximum safe altitude for a given batch of fuel A test procedure to determine the maximum safe altitude that an airplane can be operated at with a given batch of fuel. A pressure vessel is installed on an aircraft to receive a sample of the fuel to be tested. A pressure transducer mounted on the vessel... | 11/29/1994 |
| 5327779 | Vapor pressure measurement by gas saturation for mixture Disclosed herein is an apparatus and process for determining the vapor pressure of materials in a mixture at relatively low vapor pressures by a gas saturation procedure. The process comprises passing an inert gas over a sampled material at a controlled f... | 07/12/1994 |
| 5301543 | Moisture monitor in a non-conductive liquid media A moisture monitor for determining the amount of moisture in liquids which may include direct installation into a non-conductive liquid flow line or, a detection chamber having a continuous flow of contaminated non-conductive liquid therethrough, and a pr... | 04/12/1994 |
| 5206615 | Sensor for measuring solute concentration in an aqueous solution A sensor for measuring concentrate of solute in an aqueous solution in which a humidity sensor is enclosed and sealed within a porous fluorine polymer film that is liquid water impermeable but water vapor permeable. The sensor operates by measuring water ... | 04/27/1993 |
| 5191786 | Method for detecting the presence and concentration of relatively low molecular weight components in a liquid Disclosed is a method for determining the concentration of relatively low molecular weight target components in a liquid. The method involves commingling the liquid with a diluent to form a liquid-diluent mixture, stripping the target components from the ... | 03/09/1993 |
| 5172586 | System and method for determining vapor pressure of liquid compositions True vapor pressure of liquid compositions, particularly multi-component compositions, is measured by a piston and cylinder apparatus defining an expansible chamber in which a simple of liquid is trapped, the chamber is expanded in multiple steps and mult... | 12/22/1992 |
| 5143080 | In vivo osmometer A first exemplary embodiment of an osmometer for the in vivo measurement of the osmolarity of a bodily fluid such as tears or sweat comprises a detachable, preferably disposable, probe in combination with means for measuring the conductivity between two e... | 09/01/1992 |
| 5056359 | Method and apparatus to measure vapor pressure in a flow system The present invention is directed to a method for determining, by a condensation method, the vapor pressure of a material with a known vapor pressure versus temperature characteristic, in a flow system particularly in a mercury isotope enrichment process.... | 10/15/1991 |
| 5047125 | Fractionating column control apparatus and methods Apparatus and methods for determining the Reid Vapor Pressure of either an overhead, side draw or bottoms product stream of a fractionating column used for fractionating a multi-component hydrocarbon feed stream into an overhead product stream, a side dra... | 09/10/1991 |
| 5022259 | Automated vapor pressure analyzer An automated vapor pressure measuring apparatus includes an elongated cylindrical casing with a valve therein separating a liquid sample receiving chamber (the liquid chamber) from a vapor decompression chamber (vapor chamber), heaters for heating the cha... | 06/11/1991 |
| 5000035 | Apparatus for measuring vapor pressure Apparatus for measuring the vapor pressure of a volatile liquid includes one or more cylindrical test chambers immersed in a constant temperature water bath. Each test chamber includes connected liquid and vapor compartments, with the vapor compartment co... | 03/19/1991 |
| 4952071 | Thermocouple psychrometer An apparatus for the determination of the water status of living and nonliving materials capable of measuring the vapor pressure of water in the material at thermodynamic equilibrium by matching a solution of known vapor pressure with that of the water in... | 08/28/1990 |
| 4901559 | Method and arrangement for measuring the vapor pressure of liquids Method for measuring vapor pressure of liquids in which liquid to be measured is placed in a previously-evacuated measuring cell, and influence of the gas dissolved in the liquid on the measuring results is eliminated. The liquid to be measured is added i... | 02/20/1990 |
| 4889600 | Fractionating column control apparatus and methods Apparatus and methods for determining the Reid Vapor Pressure of a bottoms product stream of a fractionating column used for fractionating a multi-component hydrocarbon feed stream into an overhead product stream and a bottoms product stream are provided.... | 12/26/1989 |
