By Probe Gas, Vapor, Or Powder Patents (Class 73/40.7)
  • Patent number: 11371905
    Abstract: Methods and systems for detecting leakage in a permeability measurement system. The method includes connecting a plurality of flow lines to a first dimension of a core sample assembly, connecting one or more flow lines to a second dimension of the core sample assembly, placing the core sample assembly with the connections in a measurement cell such that the flow lines are accessible from outside of the measurement cell, connecting one or more gas sensors to one end of each of the flow lines, connecting an inlet of the measurement cell to a gas tank, setting fluid pressure inside the measurement cell to a predetermined value, and detecting a leakage in the core sample assembly by the one or more gas sensors coupled to the flow lines.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: June 28, 2022
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Jilin Jay Zhang, Hui-Hai Liu, Huangye Chen
  • Patent number: 11320337
    Abstract: Method for testing a test piece for the presence of a leak using a foil chamber, wherein the foil chamber has walls having at least one flexible wall region to which a measurement volume adjoins and is arranged on that side of the flexible wall region opposite the foil chamber volume and is hermetically separated from the foil chamber volume, having the following steps: placing the test piece in the foil chamber, closing the foil chamber, evacuating the foil chamber and monitoring the measurement volume during evacuation of the foil chamber, using the result of the monitoring to reach a conclusion regarding the magnitude of a leak, characterized in that a venting valve connecting the measurement volume to the atmosphere is closed when the pressure in the measurement volume is below a predefined threshold value, and is opened as soon as the pressure exceeds the threshold value.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: May 3, 2022
    Assignee: INFICON GmbH
    Inventors: Norbert Rolff, Silvio Decker
  • Patent number: 11320407
    Abstract: The present disclosure discloses a gas chromatograph-ion mobility spectrometry combined equipment, including: a gas chromatograph device for pre-separating a to-be-detected sample to form a pre-separated sample; an ion mobility spectrometry device in fluid communication with an outlet of the gas chromatograph device for detecting the pre-separated sample; and a gas circulating device in fluid communication with a discharged gas interface of the ion mobility spectrometry device for processing a discharged gas from the ion mobility spectrometry device, wherein the gas circulating device is further in gas communication with the gas chromatograph device for conveying a part of the discharged gas to the gas chromatograph device to serve as a carrier gas, which drives the to-be-detected sample to enter the gas chromatograph device. The miniaturization and the portability of the gas chromatograph-ion mobility spectrometry combined equipment are improved.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: May 3, 2022
    Inventors: Qingjun Zhang, Yuanjing Li, Zhiqiang Chen, Weiping Zhu, Yaohong Liu, Qiufeng Ma, Ge Li, Biao Cao, Lili Yan
  • Patent number: 11319572
    Abstract: A device (1; 2; 3; 4; 5) is provided for carrying out an integrity test on a sample of disposable components. The device has a medium chamber (10) with an inner chamber (11) that is bounded to the outside, for the purpose of receiving a culture medium. The device also has a sample holder (20) in which the sample (100) can be arranged in such a way that the sample (100) at least partially bounds the medium chamber (10) to the outside. The medium chamber (10) has a vent line (19) that is arranged on a side of the medium chamber (10) facing away from the sample holder (20).
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: May 3, 2022
    Inventors: Martin Dahlberg, Isabelle Gay, Marie Christine Menier, Nelly Montenay
  • Patent number: 11313751
    Abstract: A leak detection and containment tray includes a solid bottom surface and perforated upper surface and a pair of metal plates separated by a unit of absorbent material that is conductive when wet. When the tray absorbs a liquid, an electrical connection is completed between the pair of metal plates thereby causing an audible alarm. An illumination device is also provided and illuminated when the electrical connection is completed. A switch is configured to permit selective use of the audio and/or visual alarm.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: April 26, 2022
    Inventors: Daniel E. McGehee, Eric J. McGehee
  • Patent number: 11300476
    Abstract: A method and device for determining the existence of a leak in a package includes generating an AC high voltage with DC high voltage offset in a circuit. A package is placed between an inspection electrode and a detection electrode, which are located within the circuit. The inspection electrode applies the AC high voltage with the DC high voltage offset to the package. Current flow through the package is then detected by the detection electrode. A detection board then processes the current flow and sends the processed signal to a programmable logic controller which determines if a leak is present in the package. If a leak is present, a signal is sent to a display to notify a user.
    Type: Grant
    Filed: October 8, 2020
    Date of Patent: April 12, 2022
    Assignee: PACKAGING TECHNOLOGIES & INSPECTION, LLC
    Inventors: Undrakh Bekhtur, Charles Stauffer, Heinz Wolf, Oliver Stauffer
  • Patent number: 11262268
    Abstract: A method for inspecting a seal of a flexible container for a fluid, particularly a fluid medication, includes covering the container at least in part—preferably completely—by a gas-permeable layer. The container, together with the gas-permeable layer, is arranged in a flexible, substantially gas-tight bag, and the substantially gas-tight bag is evacuated by pumping out via a bag opening. The container is filled with a noble gas, and the presence of noble gas, which escapes out of the bag opening from the container via a leak through the gas-permeable layer, is detected.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: March 1, 2022
    Assignee: SINGLE USE SUPPORT GMBH
    Inventor: Thomas Wurm
  • Patent number: 11254824
    Abstract: To provide a solvent composition in which various organic substances are soluble, and which has no adverse effect on global environment. A solvent composition comprising 1-chloro-2,3,3,4,4,5,5-heptafluoro-1-pentene, a cleaning method using the solvent composition, a method for producing a substrate with a coating film, and a heat transfer fluid.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: February 22, 2022
    Assignee: AGC Inc.
    Inventors: Hiroaki Mitsuoka, Toshio Miki, Tsuyoshi Hanada, Mari Ichinokawa, Atsushi Fujimori, Hidekazu Okamoto
  • Patent number: 11252487
    Abstract: An internet of things (IoT) system used for an intelligent gas meter and an information transmission method for said IoT system. The IoT system used for an intelligent gas meter comprises an intelligent gas meter perception and control system, a gas network communication system, and a gas company comprehensive gas management system. The intelligent gas meter perception and control system comprises an intelligent gas meter perception unit and an intelligent gas meter control unit; the gas network communication system comprises a perception information communication system and a control information communication system; and the gas company comprehensive gas management system may comprise a perception information management system and a control information management system.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: February 15, 2022
    Assignee: CHENGDU QINCHUAN IOT TECHNOLOGY CO., LTD.
    Inventor: Zehua Shao
  • Patent number: 11237074
    Abstract: An aerosol distributor and an arrangement for filter leakage detection in a gas filtration system comprising such aerosol distributor, the aerosol distributor being configured to be positioned in a gas stream upstream of a filter, said aerosol distributor comprising: a hollow housing having at least one aerosol inlet for admitting an aerosol from an aerosol source into a chamber inside said housing, and a plurality of aerosol outlet holes for releasing the aerosol from the chamber into a gas stream surrounding the housing, wherein said housing has a plate like shape having an upstream surface configured to face an incoming gas stream and a downstream surface configured to face a filter, wherein said housing comprises a plurality of channels extending between channel inlets at the upstream surface and channel outlets at the downstream surface of the housing, such that gas from the gas stream can pass through the housing.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: February 1, 2022
    Assignee: Camfil AB
    Inventor: Sven Petersen
  • Patent number: 11226277
    Abstract: A particulate filter inspection system for a particulate filter includes a compressed air source. A primary conduit, a controller, a probe, and a gauge. The compressed air source is configured to draw air from an air source. The primary conduit is configured to receive the air from the compressed air source. The probe is coupled to the primary conduit and communicable with the controller. The probe is configured to interface with a face of the particulate filter to provide the air to only a sector of the particulate filter. The gauge is configured to determine a pressure of a first portion of the air within the primary conduit when the probe is providing a second portion of the air to only a sector of the face of the particulate filter. The controller is configured to receive the pressure from the gauge and compare the pressure to a target upper pressure.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: January 18, 2022
    Assignee: Cummins Inc.
    Inventors: Krishna Pradeep Chilumukuru, James C. Clerc, Richard Adotey Allotey, Luis Fernando Loo Zazueta, Todd M. Wieland, Rafael Ernesto Vasquez Lombardo
  • Patent number: 11199468
    Abstract: A method for performing a leak-tightness test on a test object (16) in a foil chamber (10) which has at least one flexible wall region (12, 14), having the steps: using a gas or gas constituent contained in the test object as test gas for the leak-tightness test, introducing the test object into the foil chamber, evacuating the foil chamber to a pressure lower than the test gas pressure within the test object and than atmospheric pressure, introducing a carrier gas into the foil chamber into the region outside the test object, and measuring the test gas concentration of the gas mixture that forms in the foil chamber in the region outside the test object.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: December 14, 2021
    Assignee: Inficon GmbH
    Inventors: Daniel Wetzig, Silvio Decker
  • Patent number: 11143571
    Abstract: The invention relates to a film chamber 10 which has a film chamber wall for testing the sealing tightness of a gas-filled test specimen 38, which film chamber wall defines a chamber volume 32 for holding the test specimen 38 and has a first vacuum connection 28 for evacuating the chamber volume 32 by means of a first vacuum pump 30 connected to the first vacuum connection 28, wherein at least a portion of the film chamber wall has a flexible film 12, 14, characterized in that the film 12, 14 has two layers 20, 22 arranged adjacent to each other which surround an evacuable film interspace 26.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: October 12, 2021
    Assignee: INFICON GmbH
    Inventor: Daniel Wetzig
  • Patent number: 11125606
    Abstract: A device for detecting the leak rate of a leak is employed to realize a detection method for detecting the leak rate of a leak. The device includes a gas storage tank for storing a detection medium, a connecting piece, a detection valve arranged on the connecting piece, a sealed container and a balance for measuring the weight of the sealed container. The device can detect the leak rates of leaks within the range of 1×10?1˜1×10?8 Pa·m3/s.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: September 21, 2021
    Assignee: CITIC Dicastal CO., LTD.
    Inventors: Zuo Xu, Guoyuan Xiong, Jinqi Lyu, Zhigao Yin, Hanbao Sun
  • Patent number: 11118444
    Abstract: A method of pressure testing a well tool can include applying positive or negative pressure to an internal chamber of the well tool, or determining a reference pressure, and monitoring the pressure in the internal chamber using a pressure sensor in the internal chamber. Another method can include applying pressure to an internal chamber of a well tool at a surface location, thereby creating a pressure differential in one direction across a seal, and installing the well tool in a well, thereby creating another pressure differential in a possibly opposite direction across the seal. A well system can include a well tool including an internal chamber, and a pressure sensor disposed in the chamber, whereby the pressure sensor detects pressure within the chamber.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: September 14, 2021
    Assignee: Halliburton Energy Services, Inc.
    Inventor: David B. Needham
  • Patent number: 11105704
    Abstract: A method, a device and a use of the device are provided for carrying out an integrity test on a test container (1) that has at least one flexible casing material. The method includes the steps of: filling a test fluid into the test container (1); and detecting the presence of test fluid directly outside the test container (1). The test fluid is designed in such a way that the permeation rate of test fluid through undamaged casing material of the test container (1) is not greater than 1·10?6 mbar·m/(s·bar).
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: August 31, 2021
    Inventor: Marc Hogreve
  • Patent number: 11060944
    Abstract: A leak detection device and method for use in testing a wall with selective gas/liquid permeability. The wall is sealed inside a containment including an injection chamber and a test chamber. The injection chamber is in communication with an injection and pressurization source and the test chamber is in communication with a vacuum production device. A vaporized liquid detector is in communication with the test chamber operable to detect and/or measure a parameter related to a quantity of liquid vapor or a variation in the quantity of liquid vapor which is indicative of a leak condition through the wall.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: July 13, 2021
    Assignee: ATEQ
    Inventor: Jean Luc Regef
  • Patent number: 11054332
    Abstract: An exhaust gas turbocharger includes a housing having an exhaust gas inlet and an exhaust gas outlet. The exhaust gas turbocharger also has a turbine wheel rotatably mounted in the housing. The exhaust gas turbocharger includes a shut-off device that can adopt both an open and a closed state, a fluid connection existing in the open state and allowing exhaust gas which enters via the exhaust gas inlet to flow to the exhaust gas outlet, bypassing the turbine wheel. When the housing is supplied with compressed air, the exhaust gas turbocharger is at least substantially airtight.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: July 6, 2021
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Reinhard Marek, Stefan Stoeckl, Tim Angerer
  • Patent number: 11009422
    Abstract: A vacuum bell probe for detecting leaks in underground gas pipes may include a flexible suction cup having a bottom side forming a suction opening. The suction cup may define an interior volume. The bottom side may include a soft seal ring having a higher elasticity than the suction cup, surrounding the suction opening and forming a contact surface adapted to create a seal in contact with a ground surface under which a gas leak may be assumed such that a vacuum may be generated within the interior volume upon contact to the ground surface.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: May 18, 2021
    Assignee: INFICON HOLDING AG
    Inventors: Fredrik Enquist, Henrik Vennerberg
  • Patent number: 10976212
    Abstract: Provided are a leak inspection assistance device and a leak inspection method using the same which enable using a normal leak inspection device in a leak inspection of filters in a clean room, have a small cost burden since a scanning robot, large-scape equipment, an incidental work, and the like are not required, and enable performing the accurate leak inspection with a small number of workers. A projection device which projects a suction point of a suction probe adjunct to a leak inspection device which performs a leak inspection onto a surface of a filter in a clean room in such a manner that the suction point moves in X-Y axis directions orthogonal to each other along the surface of the filter at a fixed interval and a fixed speed is provided, and a worker uses the suction probe for scanning in accordance with movement of the suction point.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: April 13, 2021
    Inventor: Koji Kawasaki
  • Patent number: 10975281
    Abstract: A refrigerant for a cooling device including a cooling circuit with at least one heat exchanger, the refrigerant undergoing a phase transition in the heat exchanger, the refrigerant being a refrigerant mixture composed of a mass fraction of carbon dioxide, a mass fraction of pentafluoroethane, a mass fraction of difluoromethane and a mass fraction of at least one other component, wherein the mass fraction of carbon dioxide in the refrigerant mixture is 28 to 51 mass percent, the mass fraction of pentafluoroethane being 14.5 to 32 mass percent, the mass fraction of difluoromethane being 14.5 to 38 mass percent, the other component being fluoromethane.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: April 13, 2021
    Assignee: WEISS UMWELTTECHNIK GMBH
    Inventors: Murat Aydin, Yannik Zahrt, David Blaufelder, Christian Haack
  • Patent number: 10948375
    Abstract: A pump seal leakage detection system (8) includes a leakage piping (13) including a collector pipe (21) and an air stream pipe (23), a sensor (15) positioned at the air stream pipe (23), and an air displacement device (17) for driving an air stream through the air stream pipe (23). The collector pipe (21) includes an inlet port (25) that is connectable to a leakage centrifuge (5), and an outlet port (27) into the air stream pipe (23). The sensor (15) is configured to detect a leakage drop at the outlet port (27) of the collector pipe (21) or in the air stream pipe (23). The air displacement device (17) is configured to blow a leakage drop off the outlet port (27) of the collector pipe (21) by an air stream towards an outlet port (35) of the air stream pipe (23).
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: March 16, 2021
    Assignee: GRUNDFOS HOLDING A/S
    Inventor: Steen Mikkelsen
  • Patent number: 10939188
    Abstract: Internet of things (IoT) systems for intelligent gas meters and information transmission methods for IoT systems are disclosed. The IoT system for an intelligent gas meter includes an intelligent gas meter perception and control systems, a gas network communication system, and a gas company comprehensive gas management system. The intelligent gas meter perception and control systems include an intelligent gas meter perception unit and an intelligent gas meter control unit; the gas network communication system has a perception information communication system and a control information communication system; and the gas company comprehensive gas management system has a perception information management system and a control information management system.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: March 2, 2021
    Assignee: CHENGDU QINCHUAN IOT TECHNOLOGY CO., LTD.
    Inventor: Zehua Shao
  • Patent number: 10914652
    Abstract: A method for detecting a leak in a heat exchanger plate includes positioning the heat exchanger plate between a first fixture and a second fixture to create both a first sealed space between the heat exchanger plate and the first fixture and a second sealed space between the heat exchanger plate and the second fixture. The first sealed space is on one side of the heat exchanger plate and the second sealed space is on the other side of the heat exchanger plate. The method includes supplying an inert gas to the second sealed space, drawing a vacuum in the first sealed space, and detecting whether the first sealed space includes the inert gas. The presence of inert gas indicates the plate is not leak-tight.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: February 9, 2021
    Assignee: WCR, INC.
    Inventor: Mattias Olsson
  • Patent number: 10844877
    Abstract: A device for evacuating a film chamber using a pump system that comprises at least two vacuum pumps, designed to evacuate the film chamber alternately. A suction capacity of the first vacuum pump is greater than that of the second vacuum pump and the final pressure achievable by the first vacuum pump is less than that of the second vacuum pump.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: November 24, 2020
    Assignee: INFICON GmbH
    Inventors: Silvio Decker, Michael Dauenhauer, Daniel Wetzig, Hjalmar Bruhns
  • Patent number: 10836521
    Abstract: The present invention relates to a flow wrapper which comprises a form and/or film tube, which forms the planar film into a film tube and/or fills the film tube with a packaging item and which comprises means to provide a longitudinal- and/or cross-seal to the film tube.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: November 17, 2020
    Assignee: GEA FOOD SOLUTIONS WEERT B.V.
    Inventors: Sven Müller, Andreas Steffen
  • Patent number: 10837857
    Abstract: The invention relates to a gas leakage search device including a test gas spray device for spraying a test object with a test gas, a vacuum assembly for evacuating the test object, wherein the vacuum assembly has a vacuum pump and a gas detector downstream of the test object for measuring the test gas proportion, and an analysis unit which evaluates the measurement signal of the gas detector. The invention is characterized in that a data communication connection is established between the spray device and the analysis unit; the spray device is designed to detect at least one point in time of the spraying process and to transmit same to the analysis unit, and the analysis unit is designed to output the corresponding measured test gas proportion at the transmitted point in time of the spraying process.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: November 17, 2020
    Assignee: INFICON GmbH
    Inventors: Hjalmar Bruhns, Ernst Franke, Ralf Kilian, Jörn Liebich, Norbert Moser, Jochen Puchalla-König, Norbert Rolff, Randolf Rolff, Daniel Wetzig
  • Patent number: 10830660
    Abstract: A leak detection system comprising a substantially sealed accumulation chamber adapted to accommodate a single gas container, the accumulation chamber being sealed so that when a gas container is in the accumulation chamber gas leaked from that container accumulates. An optical detector is provided for detecting leaked gas, the detector including an optical cell. A controller directs a reference sample to the optical cell and subsequently directs a sample from the from the accumulation chamber to the optical cell. The optical detector is operable use both the reference sample and the accumulation chamber sample to detect leaked gas.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: November 10, 2020
    Assignee: Cascade Technologies Holdings Limited
    Inventors: Paul Miller, Graeme Walker, Iain Howieson, Ruth Lindley
  • Patent number: 10816433
    Abstract: A leakage inspection method and leakage inspection device for container to be inspected are provided. When a container to be inspected having a deformable flexible part is to be inspected for leakage, the container to be inspected is filled with an inspection gas containing helium, the container to be inspected, which has been filled with the inspection gas, is disposed in an inspection chamber partitioned from the outside, and an upward flow of a carrier gas is formed from the lower part to the upper part of the container to be inspected. A leakage of the inspection gas filled in the container to be inspected is then detected on the basis of the result of measuring the concentration of helium in the carrier gas collected at a position higher than a position where the carrier gas is fed into the inspection chamber.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: October 27, 2020
    Assignee: JGC JAPAN CORPORATION
    Inventors: Masahiro Kawano, Takeshi Kojima, Yasubumi Kato, Megumi Tazawa, Yimeng Xu
  • Patent number: 10801913
    Abstract: The present invention relates to a method and a device for determining the robustness and tolerance of pre-filled containers, in particular pre-filled syringes (PFS) against accidental movement of flexible parts, specifically tip cap and/or plunger movement due to external influences by measuring the leakage rate of a test medium in correlation to a movement of a flexible parts.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: October 13, 2020
    Assignee: Lonza Ltd
    Inventors: Roman Mathaes, Anja Matter, Sarah Pelaez, Hanns-Christian Mahler, Atanas Koulov
  • Patent number: 10775259
    Abstract: A spray device for detecting leaks is provided, including: a duct including an inlet configured to be connected to a tracer gas source, and an outlet; a valve interposed between the inlet and the outlet; a casing receiving the duct and the valve; at least one probe arranged in the duct, the at least one probe being configured to measure a parameter revealing a presence of the tracer gas in the duct; and at least one information device borne by the casing, configured to provide information on the presence of tracer gas in the duct in relation to a measurement performed by the at least one probe.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: September 15, 2020
    Assignee: PFEIFFER VACUUM
    Inventors: Aurelie Chapron, Alain Devance, Mathieu Schreiner, Cyrille Nomine
  • Patent number: 10732067
    Abstract: A method for detecting fluctuations in the amount of test gas detected by a sniffer probe of a leak detector in the gas flow from around a test piece pressurized with an oxygen-free test gas containing at least an amount of CO2, wherein an amount of oxygen in the ambient air is measured.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: August 4, 2020
    Assignee: INFICON GmbH
    Inventors: Daniel Wetzig, Ludolf Gerdau
  • Patent number: 10648606
    Abstract: A method of reducing a leak or a risk of a leak of a pipe system is disclosed. The pipe system is filled with a composition that includes metal powder and xylenes, and a pressure is applied to the filled pipe system and the pipe system is drained of said composition. Also, the use of a composition for reducing a leak or a risk of a leak of a pipe system is disclosed.
    Type: Grant
    Filed: December 2, 2017
    Date of Patent: May 12, 2020
    Assignee: Picote Solutions Inc.
    Inventor: Mika Lokkinen
  • Patent number: 10605505
    Abstract: A device comprises: a container; a first fitting coupled to the container; and a second fitting coupled to the container, wherein the first fitting is configured for coupling to a first service port of a system and the second fitting is configured for coupling to a second service port of the system such that a fluid can travel from the first service port to the second service port through the container while the system is running, wherein the system comprises at least one of an air conditioning system or a refrigeration system.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: March 31, 2020
    Assignee: Alltemp Products Company Limited
    Inventors: Paul Clarence Appler, Jesse Richard Homenuik, Norma Hill
  • Patent number: 10578513
    Abstract: A method for monitoring the leaktightness of sealed products is provided, including: a charging stage during which at least one sealed product containing a tracer gas is placed in a chamber under atmospheric pressure; a pre-evacuation stage during which the chamber containing the at least one sealed product is brought into communication with a buffer volume under a subatmospheric pressure for a pre-evacuation time of less than 0.5 second; and bringing the chamber into communication with an analysis line arranged to bypass the buffer volume in order to measure a concentration of the tracer gas in the chamber so as to detect a leak from the at least one sealed product. An installation for the detection of leaks for implementing the method is also provided.
    Type: Grant
    Filed: July 11, 2016
    Date of Patent: March 3, 2020
    Assignee: Pfeiffer Vacuum
    Inventor: Alain Perrissoud
  • Patent number: 10545068
    Abstract: The present invention relates to an arrangement for testing the tightness of a container (2), comprising a testing chamber (3), in which the container (2) which is to be tested can be arranged, also comprising a pressure-altering device (5), in order to alter a pressure in the testing chamber (3) relative to a pressure in the container (2), further comprising a differential-pressure sensor (4) for determining a pressure difference between a reference pressure in a reference chamber (6) and a pressure in the testing chamber (3), and additionally comprising a valve (7) having a closing element (70), a first sealing seat (71) and a second sealing seat (72), wherein the first sealing seat (71) comprises a first sealing element (11, 21) for sealing the reference chamber (6) in relation to an antechamber, and wherein the second sealing seat (72) comprises a second sealing element (12, 22) for sealing the testing chamber (3) in relation to the antechamber (8).
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: January 28, 2020
    Assignee: Robert Bosch GmbH
    Inventor: Wolfgang Maurischat
  • Patent number: 10525659
    Abstract: A vehicle component has at least one sandwich part which forms a crash element that absorbs kinetic energy. The at least one sandwich part has a layer structure of at least two fiber-reinforced and one synthetic resin matrix-containing cover layer elements and at least one core layer element provided between two adjacent cover layer elements. The at least one core layer element has channels which pass transversely through each cover layer element and/or the core layer element. The at least one core layer element is made of a hard foam material or a softwood, and the channels provided in the core layer element form predetermined breaking points for the core layer element.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: January 7, 2020
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventor: Dirk Lukaszewicz
  • Patent number: 10515530
    Abstract: A method of gas detection includes sending, by a gas sensing device to a data collection device, reports of detected concentrations of a particular gas by an associated gas sensor of the gas sensing device per a predetermined schedule or in response to an unscheduled request by the data collection device. The method may include determining whether a latest detected gas concentration is greater than a predetermined threshold, and if so, automatically sending updated reports of detected gas concentrations to the data collection device at a rate faster than that provided by the predetermined schedule. The method may further include determining whether a tracked rate that the gas concentration is changing indicates a decrease in concentration of the gas at a rate at which there is no safety concern, and if so, clearing an over-threshold alarm. A gas sensing device is also presented.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: December 24, 2019
    Assignee: ITRON, INC.
    Inventor: Mark K Cornwall
  • Patent number: 10429748
    Abstract: An apparatus, such as a lithographic apparatus, has a metrology frame that has a reference frame mounted thereon that includes a reference surface. A gas gauge is movable relative to the reference frame, metrology frame, and a measured surface. A reference nozzle in the gas gauge provides gas to the reference surface and a measurement nozzle provides gas to the measured surface. A microelectromechanical (MEM) sensor may be used with the gas gauge to sense a difference in backpressure from each of the reference nozzle and the measurement nozzle. Optionally, multiple gas gauges are positioned in an array, which may extend in a direction that is substantially parallel to a plane of the measured surface. The gauges may be fluidly connected to a reference nozzle of the gas gauge. A channel may distribute gas across the array.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: October 1, 2019
    Assignees: ASML Holding N.V., ASML Netherlands B.V.
    Inventors: Joseph Harry Lyons, Martinus Cornelis Reijnen, Erik Johan Arlemark, Nicolae Marian Ungureanu, James Hamilton Walsh
  • Patent number: 10401253
    Abstract: Provided is a porous pellet for inclusion into an operating fluid of a fluid system for detecting sites of fluid leakage. The porous pellet comprises a solid matrix formed by at least one fluorescent dye which is solid at room temperature. The matrix has a porosity of from about 10% to about 90%. Methods of installing the porous pellets into fluid system for detection of leaks is also provided.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: September 3, 2019
    Assignee: Spectronics Corporation
    Inventors: Jonathan Daniel Cooper, Limin Chen, John Thomas Duerr, Jennifer Marie Hunt
  • Patent number: 10363925
    Abstract: Methods and systems are provided for detecting leaks in an intake manifold of an engine. In one example, a method may include closing all intake valves of all cylinders of the engine during an engine shut down responsive to vacuum in the intake manifold reaching a pre-determined vacuum level. The method may further include indicating a leak in the intake manifold responsive to a change in a level of vacuum in the intake manifold after closing all the intake valves of all cylinders.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: July 30, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Aed M. Dudar, Chingpo Liu
  • Patent number: 10274419
    Abstract: A container (1) has a measuring-cell housing (5) that protrudes into the container interior (2). The measuring-cell housing (5) has a measuring gap (6) bounded by two opposed spaced-apart lateral surfaces (8, 9), and a connecting surface (10) connects the lateral surfaces (8, 9). Each lateral surface (8, 9) has an optical window (11, 12). A first optical fiber (15, 15?) is arranged before the first window (11) and a second optical fiber (17, 17?) is arranged before the second window (12). Receiving channels (14, 16, 18) are arranged before the windows (11, 12, 13) and subsequently can be fit with the optical fibers (15, 15?, 17, 17?, 19) from the outside. The measuring-cell housing (5) having the windows (11, 12, 13) and the receiving channels (14, 16, 18) is connected fixedly to the wall (3) of the container interior (2).
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: April 30, 2019
    Assignee: Sartorius Stedim Biotech GmbH
    Inventors: Marek Hoehse, Christian Grimm
  • Patent number: 10229825
    Abstract: A mass spectrometer system can include an ion source, a vacuum chamber; a mass analyzer within the vacuum chamber, a transfer tube between the ion source and the vacuum chamber, a transfer tube heater, and a vacuum pump. The mass spectrometer system can be configured to reduce the pump speed of the vacuum pump in response to receiving a transfer tube swap instruction; lower the temperature of the transfer tube to below a first threshold; operating the vacuum pump at the reduced pump speed while the transfer tube is replaced with a second transfer tube; heating the second transfer tube to a temperature above a pump down temperature; and increasing the pump speed of the vacuum pump after the temperature of the second transfer tube exceeds a second threshold.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: March 12, 2019
    Assignee: THERMO FINNIGAN LLC
    Inventors: Scott T. Quarmby, Edward B. McCauley, Joshua T. Maze
  • Patent number: 10190934
    Abstract: Methods and systems are provided for increasing the robustness of engine off natural vacuum testing. In one example, following an engine-off event, a heat rejection inference is determined, and further adjusted based on a fuel level and ambient temperature. In this way, an evaporative emissions system leak test may be enabled under conditions where the leak test may otherwise not be executed, thus increasing opportunities for evaporative emissions system leak detection and correspondingly reducing bleed emissions.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: January 29, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Aed M. Dudar, John Mullins
  • Patent number: 10088381
    Abstract: A method for conducting an integrity test on a flexible test container (1) includes arranging the test container (1) in an examination container (5) that is sealable in a fluid-tight manner, providing negative pressure in the interior of the sealed examination container (5), filling examination fluid into the test container (1) arranged in the examination container (5), detecting examination fluid present in the interior of the examination container (5), and providing negative pressure in the test container (1) arranged in the examination container (5) prior to filling the examination fluid. Prior to filling the examination fluid, the negative pressure in the test container (1) is lower than the negative pressure in the interior of the examination container (5), and the pressure difference between the negative pressure in the test container (1) and the negative pressure in the interior of the sealed examination container (5) is more than 0 mbar and a maximum of 100 mbar.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: October 2, 2018
    Assignee: Sartorius Stedium Biotech GmbH
    Inventor: Marc Hogreve
  • Patent number: 10041854
    Abstract: A microelectromechanical sensor (MEMS) package includes a gyroscope and an accelerometer. The gyroscope is located within a low-pressure cavity that is sealed from an external pressure. The accelerometer is located within a cavity, and the seal for the accelerometer cavity is entirely within the gyroscope cavity. Under normal operating conditions, the accelerometer seal holds the accelerometer cavity at a higher pressure than the pressure of the enclosing gyroscope cavity. In the event that one of the gyroscope seal or the accelerometer seal is broken, the gyroscope senses the change in pressure and a failure is identified.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: August 7, 2018
    Assignee: Panasonic Corporation
    Inventors: Luca Coronato, Giacomo Gafforelli, Adolfo Giambastiani
  • Patent number: 10035311
    Abstract: A method for manufacturing a leak tight porous component includes the steps of forming a porous component; applying a first application of a surface sealant layer to the component; providing pressurized gas into a wall of the component via a known leak in the surface sealant; applying liquid to the component while pressurized gas is flowing into the wall of the component via the known leak. The method further includes the steps of inspecting the component for the formation of bubbles; identifying a new leak area in the component; removing at least a substantial amount of liquid from the component; and applying a second application of surface sealant to the new leak area.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: July 31, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Alexander John Dan, Jeffrey A Rock, Edward Gerard Strucinski, II
  • Patent number: 10024751
    Abstract: Multiple chemical tracers are provided in a fluid system, and measured to evaluate parameters of the system. The multiple chemical tracers include at least one reactive chemical tracer that provides a measurable signal with an intensity that changes as the reactive chemical tracer reacts in the fluid system. The signals of the multiple chemical tracers are compared to each other to evaluate a system parameter, such as temperature, pH, or system events.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: July 17, 2018
    Assignee: CHEMTREAT, INC
    Inventors: John Richardson, Kevin White, Patrick Wood, James Wilkins
  • Patent number: 10019854
    Abstract: Methods and systems are provided for detecting exhaust gas oxygen sensor degradation due to sealant off-gassing. In one example, a method may include indicating exhaust gas oxygen sensor degradation due to sealant off-gassing responsive to a change in fueling demand without a change in driver-demanded torque after a threshold exhaust temperature has been reached. In response to the indication, a measurement correction may be learned and applied to measurements of the exhaust gas oxygen sensor in order to accurately determine an air-fuel ratio of the exhaust.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: July 10, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Michael McQuillen, Daniel A. Makled, Richard E. Soltis, Gopichandra Surnilla
  • Patent number: 9960979
    Abstract: Systems and methods for brokering storage services are disclosed. In one embodiment, the brokering system stores a mapping of stored data sets to online storage providers. The system can monitor one or more metrics associated with a plurality of online storage providers, identify one or more provider criteria associated with a first customer account, and obtain one or more metrics of a first storage provider storing a first data set associated with the first customer account. The system can determine whether to migrate the first data set based in part on the monitored metrics, the metrics of the first storage provider and the provider criteria. The system can auto-initiating migration of the first data set from the first storage provider to one or more selected storage providers of the plurality of online storage providers and update the mapping for the first data set.
    Type: Grant
    Filed: August 12, 2013
    Date of Patent: May 1, 2018
    Assignee: Western Digital Technologies, Inc.
    Inventors: Grant C. Blahaerath, Gary J. Hooper