Expansible Chamber Patents (Class 73/864.62)
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Patent number: 11029237Abstract: A sediment pressure-holding transfer device developed based on abyssal sediment fidelity sampler is disclosed, which uses a vacuum pump to discharge a gas in the device, uses a high-pressure pump as a power source to perform a pressurization process, uses gravity of a sample to perform a first transfer, and uses a high-pressure impurity pump and a safety valve to perform a second transfer of a sample mixture, in its structure, a high-pressure-resistant and corrosion-resistant material is used as a main material of the device, the device mainly comprises a mechanical system and a hydraulic system, the mechanical system is used as a main frame of the device and is a basis for ensuring operation of the device; the hydraulic system is used as a core of the device and is a key to ensure success of sediment transfer.Type: GrantFiled: May 9, 2019Date of Patent: June 8, 2021Assignee: Zhejiang UniversityInventors: Jiawang Chen, Jing Xiao, Jiasong Fang, Weitao He, Hao Wang, Yue Huang, Wei Wang, Yuxia Sun
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Patent number: 10031114Abstract: Described herein are liquid-free traps for trace levels of an acidic or basic airborne molecular contaminant in a gas. In one version of the invention described herein, the liquid-free trap comprises a housing, comprising an inlet and an outlet; a flow path between the inlet and the outlet; and a rigid sintered hydrophilic material situated in the flow path between the inlet and the outlet and sealed in the housing. The rigid sintered hydrophilic material is functionalized with from about 0.05 molar milliequivalents to about 10 molar milliequivalents of a basic species for trapping an acidic airborne molecular contaminant in the gas or from about 0.05 molar milliequivalents to about 10 molar milliequivalents of an acidic species for trapping a basic airborne molecular contaminant in the gas. Methods of using the liquid-free traps to detect or measure trace levels of an acidic or basic airborne molecular contaminant are also described.Type: GrantFiled: September 5, 2014Date of Patent: July 24, 2018Assignee: Entegris, Inc.Inventors: Tyler Moulton, Jürgen M. Lobert, John C. Gaudreau, Thomas Leblanc
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Patent number: 8991239Abstract: A system and method for preparing samples for analyte testing. The sample preparation system can include a freestanding receptacle. The method can include providing a liquid composition comprising a source and a diluent, and positioning the liquid composition in a reservoir defined by the freestanding receptacle. The method can further include filtering the liquid composition to form a filtrate comprising an analyte of interest, removing at least a portion of the filtrate from the sample preparation system to form a sample, and analyzing the sample for the analyte of interest.Type: GrantFiled: August 10, 2012Date of Patent: March 31, 2015Assignee: 3M Innovative Properties CompanyInventors: Kurt J. Halverson, Stephen C. P. Joseph, Matthew T. Scholz
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Patent number: 8820401Abstract: The present invention relates to an oil-pressure type fixed piston sampler for sampling a soil sample for site investigation. The oil-pressure type fixed piston sampler comprises a sampling unit (12) and an oil-pressure controller (14). Here, when the sampling unit (12) inserted into a drilled hole and a movable piston (80) moves downward, a sampling tube (1) moves downward to take a sample. The oil-pressure controller (14) connected with the sampling unit (12) controls oil pressure to cause the movable piston (80) to shift vertically. The sampling unit (12) comprises an upper head (20), a lower head (40), a piston housing (70), a rod block (100), a movable rod (90), a fixed piston (110), a fixed rod (92) and a separation rod (94). Since the sampling tube (1) takes a sample by a piston indentation method, high-quality, undisturbed samples can be obtained.Type: GrantFiled: July 27, 2010Date of Patent: September 2, 2014Assignee: Dong-A University Research Foundation for Industry-Academy CooperationInventor: Sung Gyo Chung
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Patent number: 8800394Abstract: A transportable Sample Apparatus includes a vacuum flask (Dewar flask) and integral sample container. The Sample Apparatus may be used to capture a liquid phase LNG sample at a custody transfer point and to transport the sample to a laboratory for analysis. Vaporization of the liquid phase sample may take place at a variety of different locations. For example, vaporization may begin and/or be completed during transport from the collection point to the laboratory. In another example, vaporization may begin and be completed in the laboratory. In yet another example vaporization may begin during transport and be completed at the laboratory. The gas phase sample is typically analyzed by a gas chromatograph for Btu content, among other things. Prior to capture of the sample, the Sample Apparatus goes through a pre-cool cycle to chill a sample end cap and other components to a temperature compatible with capture of a cryogenic liquid sample which is about ?250° F.Type: GrantFiled: April 19, 2011Date of Patent: August 12, 2014Assignee: Welker, Inc.Inventors: Michael A. Bombulie, Tracy D. Peebles
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Patent number: 8272255Abstract: A system and method for preparing samples for analyte testing. The sample preparation system can include a freestanding receptacle. The method can include providing a liquid composition comprising a source and a diluent, and positioning the liquid composition in a reservoir defined by the freestanding receptacle. The method can further include filtering the liquid composition to form a filtrate comprising an analyte of interest, removing at least a portion of the filtrate from the sample preparation system to form a sample, and analyzing the sample for the analyte of interest.Type: GrantFiled: May 22, 2007Date of Patent: September 25, 2012Assignee: 3M Innovative Properties CompanyInventors: Kurt J. Halverson, Stephen C. P. Joseph, Matthew T. Scholz
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Publication number: 20120204660Abstract: A syringe for use with a dosing device with a receiver for a syringe cylinder and an axially displaceable plunger receiver for a syringe plunger with a syringe cylinder, which has a floor with an outlet on the bottom, a cylindrical plunger run area on the inside and has means for being held in the receiver on the top, a syringe plunger, which has a circumferential plunger seal for sealing on the plunger run area on the perimeter and a coupling piece for insertion into the plunger receiver on the top and stop means between the syringe cylinder and the syringe plunger, which restrict the displacement of the syringe plunger towards the floor so that the syringe plunger with the plunger seal can only approach to a certain distance from the floor.Type: ApplicationFiled: August 17, 2011Publication date: August 16, 2012Applicant: EPPENDORF AGInventor: Jürgen Löhn
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Patent number: 8210058Abstract: A sampling cylinder for LNG (liquefied natural gas) is provided. The sampling cylinder includes a piston cylinder arrangement having opposite end members closing the chamber inside the cylinder. Various porting arrangements are provided for allowing fluid to be fed into a chamber inside the cylinder on opposite sides of a piston. A sample chamber is provided at one end member of the cylinder. The end member containing the sample chamber is also provided with a heat exchanger that may be connected to a source of coolant and preferably the LNG to be sampled to effect cooling of the end member at least partially prior to the sample chamber having a sample of LNG injected thereinto.Type: GrantFiled: September 19, 2008Date of Patent: July 3, 2012Assignee: Welker, Inc.Inventors: Brian H. Welker, Tracy Dean Peebles, Dennis M. McKay
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Patent number: 8191437Abstract: A system and method for capturing a sample gas for analysis is disclosed. In one embodiment, the system includes an accumulator that has a variable volume. A volume of the sample gas is fed to the accumulator. The system also has an analyzer. An aliquot of the sample gas is withdrawn from the accumulator and fed to the analyzer. The analyzer analyzes a desired component of the sample gas.Type: GrantFiled: May 15, 2008Date of Patent: June 5, 2012Assignee: O.I. CorporationInventor: Joseph A. Brandesky
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Patent number: 8166832Abstract: A device, system, and method for retrieving a sample of oil from an engine, comprising, a chamber having an inside wall and at least one oil inlet, a piston head received in said chamber and slidable between an empty position in which it is disposed substantially at said inlet and a filled position in which it is a first distance from said inlet, a handle affixed to said chamber, and a piston member extending between said handle and said piston head, said piston member comprising a flexible member having a proximal end and a distal end, said distal end being affixed to said piston head.Type: GrantFiled: December 19, 2007Date of Patent: May 1, 2012Assignee: Shell Oil CompanyInventors: Vatsal Mukundlal Shah, Priestley Jing-kong Wang
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Patent number: 7967141Abstract: The invention relates to a device for the automatic and instantaneous detection of movements of an object with respect to a housing containing or capable of containing this object chosen from the introductions of this object in this empty housing and the extractions of this object from its housing. The invention is characterized in that the device comprises a spring system (1) comprising two symmetrical blades (3, 3A) each formed by an upper wing (5, 5A) and of a lower wing (6, 6A) articulated between one another and forming at rest an obtuse angle, wherein these blades are positioned back to back at their articulation (4, 4A) in that the upper wings are configured to form a housing (7) for the object and in that the lower wings are connected to one another by a wire (8) forming a spring which cooperates with a push button (11) capable of moving perpendicularly to a pressure sensor (2) until it comes into contact with it or is freed from it.Type: GrantFiled: November 13, 2007Date of Patent: June 28, 2011Assignee: Beldico Integrated Solutions, S.A.Inventor: John Witczak
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Publication number: 20100077875Abstract: Disclosed is a microfluidic device comprising at least one micro-aliquotter for dispensing fixed or variable volumes. The micro-aliquotter includes an rigid, dimensionally stable foundational layer having a fluid port therein that is in fluid communication with a channel within the microfluidic device, and an elastic film positioned on the foundational layer where the film covers the fluid port. The elastic film is sealed to the foundational layer so fluids entering through the fluid port can be captured between the elastic film and the foundational layer. The elastic film being expandable from a rest position on the foundational layer to a dispensing, or aliquotting, position in which an aliquot volume of a fluid is contained between the film and the foundational layer.Type: ApplicationFiled: September 29, 2008Publication date: April 1, 2010Applicant: YSI INCORPORATEDInventor: Donald R. Moles
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Publication number: 20100071484Abstract: A sampling cylinder for LNG (liquefied natural gas) is provided. The sampling cylinder includes a piston cylinder arrangement having opposite end members closing the chamber inside the cylinder. Various porting arrangements are provided for allowing fluid to be fed into a chamber inside the cylinder on opposite sides of a piston. A sample chamber is provided at one end member of the cylinder. The end member containing the sample chamber is also provided with a heat exchanger that may be connected to a source of coolant and preferably the LNG to be sampled to effect cooling of the end member at least partially prior to the sample chamber having a sample of LNG injected thereinto.Type: ApplicationFiled: September 19, 2008Publication date: March 25, 2010Applicant: WELKER, INC.Inventors: Brian H. Welker, Tracy Dean Peebles, Dennis M. McKay
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Patent number: 7555965Abstract: A system for obtaining a representative sample of a natural gas stream, particularly a stream which is at or below its hydrocarbon dew point temperature (H.C.D.P.). The preferred embodiment of the present invention contemplates a sample cylinder having a flexible isolation barrier and integrated valving to provide a controlled ingress of sample gas at nominal pressure differential. The system thereby avoids throttling of the sample gas and the inherent cooling problems associated therewith when the stream is at or below hydrocarbon dew point temperature. The flexible isolation barrier of the present invention is relatively inexpensive and is configured for quick and easy replacement, which may be routinely performed to insure sample integrity. Alternative embodiments of the invention contemplate a spherical sample cylinder configuration with flexible isolation barrier, as well as an improvement for piston-type sample cylinders to provide constant sample pressure.Type: GrantFiled: March 14, 2007Date of Patent: July 7, 2009Assignee: A+ Manufacturing, LLCInventor: Donald P. Mayeaux
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Patent number: 7540206Abstract: A sampling apparatus for use with a sample analyzer comprises a sample probe insertable into a process stream, and an extraction cylinder including a variable volume chamber and a piston movable by an actuator back and forth in the cylinder to increase and decrease the volume of the variable volume chamber. A sampling valve is connected between the extraction cylinder and the sample probe, with a sample line connecting the sampling valve to the sample probe, and the variable volume chamber having a capacity substantially greater than the combined volumes of the sample probe, sampling valve and sample line.Type: GrantFiled: October 11, 2006Date of Patent: June 2, 2009Assignee: Parker-Hannifin CorporationInventors: James D. Gibson, Frank A. Ruiz
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Patent number: 7481125Abstract: A sample pump system for metering the amount of sample taken from a pressurized fluid process such as a natural gas pipeline or the like, the sample pump system designed for immersion, directly or indirectly, into the pressurized fluid stream so that the sampling is taken at the prevailing pressure and temperature of the fluid stream. A spot sample cylinder device is further provided which employs a method of collection wherein the initial cylinder volume of the collection vessel or sampling cylinder is zero. The spot sample cylinder is inserted into the pressurized gas (or fluid) source, said sample cylinder employing a piston or moveable end configured such that purging of the cylinder sample cavity is not required, since the sample cavity volume is essentially eliminated prior to sampling by the location of the piston within the cavity, the cavity expanding upon sampling via piston movement within the cavity.Type: GrantFiled: June 13, 2005Date of Patent: January 27, 2009Inventor: Donald P. Mayeaux
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Publication number: 20080307904Abstract: Method and system for obtaining a liquid sample from a particulate matter-containing liquid in, e.g., a specimen container. A receptacle is used that has an inlet and a chamber for collecting the liquid sample. A discharge passage accommodates upward flow of liquid from the container. The discharge passage preferably has an upper discharge port, and at least one intake submerged in the liquid in the container. A flow-metering passage prevents particulate matter above a predetermined size from passing into the receptacle chamber. Liquid transfer commences after the receptacle inlet is placed in liquid-tight communication with the discharge port. Operation of mechanized system also is disclosed, as well as an arrangement and method for handling multiple receptacles at a liquid transfer station.Type: ApplicationFiled: November 10, 2005Publication date: December 18, 2008Inventors: Norman J. Pressman, William J. Mayer
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Patent number: 7441472Abstract: An apparatus and method is provided to obtain a sample of a liquid at a distance. In one embodiment, the apparatus comprises a telescoping support member, a retaining bracket, a syringe, and a control means that is used to obtain and release a sample of pool water. The sample contained within the syringe is emptied into any type of container to test for chemical parameters such as salinity, free available chlorine, pH, total alkalinity and calcium hardness. In another embodiment, the apparatus further comprises a hook on the end of the support shaft that can be used to pick up a variety of items.Type: GrantFiled: April 26, 2005Date of Patent: October 28, 2008Inventor: Jason Vinton
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Patent number: 7380476Abstract: A gas sampling bag is capable of blowing out the gas uniformly into the bag main body, and filling the bag main body with gas in a securely mixed state. A gas sampling bag that is connected to a constant volume sampling passage, contains a pipe, on which a plurality of gas inlet/outlet holes are formed, in a bag main body, and allows the gas to flow into/out of the bag main body through the gas inlet/outlet holes. The opening of the plurality of gas inlet/outlet holes is formed in such a manner that the size is minimized while the pressure loss is suppressed so as not to increase as far as possible.Type: GrantFiled: August 6, 2004Date of Patent: June 3, 2008Assignee: Horiba, Ltd.Inventors: Hitoshi Hirai, Hideki Ohashi, Toshio Mizutaka, Kimikazu Yoda, Kenichi Uchida, Hiroaki Katumata
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Patent number: 7258167Abstract: A method and apparatus store energy in an energy storage medium located in an energy storage chamber. As a sampling tool descends into the borehole, the energy storage medium is pressurized with hydrostatic pressure. A sample is collected in a sample chamber by pumping formation fluid into the sample chamber against hydrostatic pressure. The energy storage medium applies the energy stored in the energy storage medium to the sample through a pressure communication member. A pressure multiplier member increases the pressure applied on the sample by the energy storage medium through the pressure communication member to keep pressure on the sample. A biasing water pressure is applied to the sample at the surface so that the energy storage chamber can be removed from the sample chamber.Type: GrantFiled: October 12, 2005Date of Patent: August 21, 2007Assignee: Baker Hughes IncorporatedInventors: Michael Shammai, Francisco Galvan Sanchez, Harry Wade Bullock
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Patent number: 7225690Abstract: A system for obtaining a representative sample of a natural gas stream, particularly a stream which is at or below its hydrocarbon dew point temperature (H.C.D.P.). The preferred embodiment of the present invention contemplates a sample cylinder having a flexible isolation barrier and integrated valving to provide a controlled ingress of sample gas at nominal pressure differential. The system thereby avoids throttling of the sample gas and the inherent cooling problems associated therewith when the stream is at or below hydrocarbon dew point temperature. The flexible isolation barrier of the present invention is relatively inexpensive and is configured for quick and easy replacement, which may be routinely performed to insure sample integrity. Alternative embodiments of the invention contemplate a spherical sample cylinder configuration with flexible isolation barrier, as well as an improvement for piston-type sample cylinders to provide constant sample pressure.Type: GrantFiled: July 31, 2003Date of Patent: June 5, 2007Assignee: A+ Manufacturing, LLCInventor: Donald P. Mayeaux
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Patent number: 7159475Abstract: An apparatus and method for sampling semivolatile compounds is disclosed. A collection bag is placed around an air conditioning vent on an aircraft. An opening in the collection bag receives air from the air conditioning vent into the bag. An exit in the collection bag allows the air sample to escape from the collection bag. Vacuum applied by tubing at the exit pulls the air sample from the bag. Flow is adjusted so that the inflow into the collection bag exceeds the outtake, thereby inflating the bag. The inflation of the collection bag assures that the air being sampled is only air originating from the air conditioning vent.Type: GrantFiled: February 27, 2004Date of Patent: January 9, 2007Assignee: Honeywell International, Inc.Inventors: Larry Casillas, Richard B. Fox, Richard B. Gadberry, Robert L. Power
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Patent number: 7155990Abstract: A formation test tool 10 for obtaining a downhole fluid sample from a formation of interest 30 and returning the sample to the surface of a well includes a cylinder 12 forming a fluid sample chamber therein, and a piston 20 sealingly movable within the cylinder and separating the fluid sample from a cushioning fluid. A fluid line 24 connects the formation of interest to the fluid sample chamber, and a valve 26 controls fluid flow along the fluid line. In one embodiment, a magnet 76 supported on the piston outputs signals indicative of the position of the piston and thus the volume of the fluid sample within the cylinder. A meter 74 is movable along the exterior of the cylinder 12 for determining the position of the magnet within the cylinder, such that the volume of sampled fluid in the cylinder can be determined at the surface.Type: GrantFiled: December 27, 2004Date of Patent: January 2, 2007Assignee: Halliburton Energy Services, Inc.Inventor: Gregory N. Gilbert
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Patent number: 7071000Abstract: A method for sampling reaction products includes delivering a reactant through a sampling probe to contact a substance deposited on a substrate and reacting the reactant to form a reaction product. At least a portion of the reaction product is withdrawn through the sampling probe and analyzed. The sampling probe is contacted with the substrate during at least a portion of the delivering, reacting and withdrawing steps.Type: GrantFiled: December 30, 2002Date of Patent: July 4, 2006Assignee: Symyx Technologies, Inc.Inventors: Youqi Wang, Peijun Cong, Tony N. Wheeler, Lynn Thomas Van Erden, H. Sam Bergh
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Patent number: 6864091Abstract: A sampling probe for delivering a reactant to a substance deposited on a substrate to form a reaction product and for transporting the reaction product to a product analyzer for analysis. The probe includes a tip positionable over the substance on the substrate. The probe has a recess in the tip sized and shaped for receiving at least a portion of the reaction product. The probe has a product sampling passage extending from the recess adapted for connection to the product analyzer for transporting the portion of the reaction product to the product analyzer. Further, a reactant delivery passage extends to an outlet at the recess for delivering reactant to the substance on the substrate to form the reaction product.Type: GrantFiled: August 31, 2000Date of Patent: March 8, 2005Assignee: Symyx Technologies, Inc.Inventors: Youqi Wang, Peijun Cong, Tony N. Wheeler, Lynn Thomas Van Erden, H. Sam Bergh
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Publication number: 20040124193Abstract: An apparatus for the storage of cellular fluids. The apparatus comprises a first chamber capable of containing a sample of cellular fluid, and a second container which is adapted to receive fluid from the first container. The second container also comprises a bored piston which, when inserted into the first chamber, forces the cellular fluid through the bore and into the second chamber. As the first and second containers are brought together, the piston and the first chamber seal together to create a sealed volume. Also, as the cellular fluid is pressurised through the bored piston into the second chamber the cells of the fluid burst, leaving a disrupted sample which is safe from contamination or degradation.Type: ApplicationFiled: December 4, 2003Publication date: July 1, 2004Inventor: Charles Buchan Ritchie
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Publication number: 20040055400Abstract: A single phase sampling apparatus and method for retrieving a formation fluid sample at or above the bubble point of the sample. The apparatus utilizes a gas charge contained between a sample piston and a charging piston to maintain a formation sample at the desired pressure. The charging piston utilizes the hydrostatic pressure present at the depth of the desired formation sample to compress and therefore increase the gas charge to the appropriate pressure necessary to maintain the formation sample at the desired pressure. The utilization of hydrostatic pressure to increase the pressure of the gas charge allows the use of a low pressure gas charging system to prepare the apparatus prior to sampling, thereby increasing the safety and ease of use of the device.Type: ApplicationFiled: August 27, 2003Publication date: March 25, 2004Inventors: Paul D. Ringgenberg, Gregory N. Gilbert
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Patent number: 6682939Abstract: A method and apparatus for sampling chemicals prevents exposure of laboratory personnel to the chemicals being tested and to volatile solvents or chemicals that may be mixed with the tested chemicals. The apparatus includes a sampling line connected to the source of the chemicals, a cooling means for reducing the temperature of the chemicals, and a sample holder for containing the sampled chemicals. In the method, the chemicals are removed from their source, cooled, and contained in the presence of a shortstop chemical, i.e. a chemical designed to terminate any chemical reaction that may be taking place when the chemicals are sampled. The apparatus also captures and contains any volatile solvents or chemicals that may be mixed with the chemicals being tested.Type: GrantFiled: January 4, 2002Date of Patent: January 27, 2004Assignee: The Goodyear Tire & Rubber CompanyInventor: Ramon Alberto Diaz
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Publication number: 20030221495Abstract: A powder sampling method and apparatus is provided for sampling powder from a mixer or a drum. An undisturbed column of powder is extracted from a vessel. The column of powder may then be sectioned into subunits, using a discharge device, providing up to dozens of samples per insertion. Larger number of representative samples of controlled size from a powder bed can be acquired.Type: ApplicationFiled: October 10, 2002Publication date: December 4, 2003Inventors: Fernando J. Muzzio, Albert Alexander, Dean Brone, Michael Roddy
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Patent number: 6578440Abstract: A sample bag for collecting a mixture of gasses for analysis is made of a modified polymer consisting essentially of tetrafluoroethylene (TFE) and at most about 2.0 percent perfluoropropylvinylether (PPVE).Type: GrantFiled: June 20, 2002Date of Patent: June 17, 2003Assignee: Horiba Instruments, Inc.Inventor: Gary W. Lewis
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Patent number: 6571650Abstract: The invention relates to an apparatus and method for providing a modifiable headspace for measuring a concentration of volatile releases from a sample. The invention includes a collapsible housing for containing the air sample and a plurality of spacers between the housing and the sample surface for separating them from one another. The plurality of spacers permit the distance between the housing and the sample to be adjustable.Type: GrantFiled: October 22, 2001Date of Patent: June 3, 2003Assignee: PerkinElmer Instruments LLCInventors: Avinash Dalmia, Otto J. Prohaska, Paul G. Saviano, Gitesh Kumar
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Publication number: 20030074987Abstract: The invention relates to an apparatus and method for providing a modifiable headspace for measuring a concentration of volatile releases from a sample. The invention includes a collapsible housing for containing the air sample and a plurality of spacers between the housing and the sample surface for separating them from one another. The plurality of spacers permit the distance between the housing and the sample to be adjustable.Type: ApplicationFiled: October 22, 2001Publication date: April 24, 2003Inventors: Avinash Dalmia, Otto J. Prohaska, Paul G. Saviano, Gitesh Kumar
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Patent number: 6497156Abstract: A sample of gaseous constituents, to be used in e.g. emissions testing, is collected within an inner bag 86 having a wall 92 that allows limited diffusion of at least one of the gaseous constituents therethrough. A control gas is then collected into an outer bag 82 that defines an auxiliary chamber 94 between the wall and the outside environment. The control gas controls the rate of diffusion of the at least one constituent through the wall and into the outside environment.Type: GrantFiled: July 3, 2002Date of Patent: December 24, 2002Assignee: Horiba Instruments, Inc.Inventor: Allen F. Dageforde
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Publication number: 20020166394Abstract: A modular automated diagnostic analyzer having a fluid entry module for sample aspiration, a valve module for selecting fluids and a pump module for fluidic movement. so that a biological sample does not come into contact with the valve system through which calibrants and air are introduced to the fluid path. The fluid entry module encloses an aspiration tube rotatably and slidably engaged with the analysis mechanism chassis to move to different positions for the introduction of fluids into the analysis apparatus from different types of sample containers. A wiping seal removes residues of aspirated fluids from the exterior surfaces of the aspiration tube with the residue being aspirated into the analysis apparatus for disposal. Sensor modules mounted in a sensor chamber are structured to mechanically stack and interlock and include film sensors with use life record memories and each sensor module includes a fluid tight sealed passage and a sensor element.Type: ApplicationFiled: November 8, 2001Publication date: November 14, 2002Inventors: Vijay Mathur, Tyler Cote, Ronald Jones, Jane Sun, Steve Rettew, Chen Yi, Tony Mao, Will Whelan, Ken Galano, Richard Dussault
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Patent number: 6360620Abstract: The extraction of intact, representative fluid samples in well-defined depths, such as from wells sunk into the ground, has until now been very difficult, and in many cases impossible to perform. A method is provided as well as a sample extractor for the extraction of intact fluid samples, in particular from a well (26) sunk into the ground, by submersion of a compressible hollow flexible body (22) fitted in a supporting device which, subsequent to submersion to the sample extraction depth, is acted upon to effect liquid entry through an inlet. In particular, hollow flexible body (22) is held in the support device in the form of a pressure vessel (2) and fully compressed by pressurized gas inside the pressure vessel, whereupon the pressure vessel is caused to change in such a way that a surrounding fluid seeps into the hollow flexible body (22), whereupon the vessel (2) with the body (22) containing the fluid sample is hoisted out of the well (26).Type: GrantFiled: March 15, 1999Date of Patent: March 26, 2002Assignee: Rotek A/SInventor: Hans Christian Jensen
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Patent number: 6279408Abstract: A sample bag for collecting a mixture of gasses for analysis is made of a modified polymer consisting essentially of tetrafluoroethylene (TFE) and at most about 2.0 percent perfluoropropylvinylether (PPVE).Type: GrantFiled: September 28, 2000Date of Patent: August 28, 2001Assignee: Horiba Instruments, Inc.Inventor: Gary W. Lewis
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Patent number: 6261523Abstract: An adjustable-volume, sealed chemical-solution-confinement vessel for enclosing the inner bottom surface of the chemical-solution-confinement vessel within a sealed chamber. The chemical-solution-confinement vessel comprises a well-shaped base into which a complementarily-shaped lid is inserted. The lid can be inserted to a first position, in order to create a small volume sealed chamber above the inner bottom surface of the chemical-solution-confinement vessel, and can be retracted to a second position in order to create a larger volume sealed chamber above the inner bottom surface of the chemical-solution-confinement vessel. The lid may contain a port or aperture for introducing a fluid or material into the sealed chamber.Type: GrantFiled: April 27, 1999Date of Patent: July 17, 2001Assignee: Agilent Technologies Inc.Inventor: Carol T. Schembri
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Patent number: 6189392Abstract: A non-flashing fluid sampler for use in obtaining a well fluid sample. The sampler comprises a body defining a first chamber, a second chamber, a third chamber and a sampling port therein. The sampling port is in communication with the first chamber and with an outside zone outside the body. The second and third chambers are initially isolated from one another by a control valve. Upon activating the control valve, fluid may flow from the second chamber to the third chamber through a flow restriction. An extendable floating piston is disposed between the first and second chambers, and the floating piston defines a variable volume therein. An initial amount of well fluid flows into the variable volume, thus trapping dirty fluid, and subsequently, a well fluid sample is flowed into the first chamber. An isolation valve is provided for allowing hydrostatic pressure into the sampler after the fluid sample has been taken.Type: GrantFiled: December 16, 1999Date of Patent: February 20, 2001Assignee: Halliburton Energy Services, Inc.Inventor: Roger L. Schultz
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Patent number: 6178832Abstract: A modular automated diagnostic analyzer having a fluid entry module for sample aspiration, a valve module for selecting fluids and a pump module for fluidic movement so that a biological sample does not come into contact with the valve system through which calibrants and air are introduced to the fluid path. The fluid entry module encloses an aspiration tube rotatably and slidably engaged with the analysis mechanism chassis to move to different positions for the introduction of calibration and cleaning fluids and the aspiration of fluids into the analysis apparatus from different types of sample containers. A wiping seal removes residues of aspirated fluids from the exterior surfaces of the aspiration tube with the residue being aspirated into the analysis apparatus for disposal. Sensor modules mounted in a sensor chamber are structured to mechanically stack and interlock and each sensor module includes a fluid tight sealed passage and a sensor element.Type: GrantFiled: July 8, 1999Date of Patent: January 30, 2001Assignee: Medica CorporationInventors: Vijay Mathur, Tyler Cote, Ronald Jones, Jane Sun, Steve Rettew, Chen Yi, Tony Mao, Will Whelan, Ken Galano, Richard Dussault