By Probe Gas, Vapor, Or Powder Patents (Class 73/40.7)
  • Patent number: 11794701
    Abstract: A solenoid valve in a manifold is commanded to move to a closed position. Upon activating a pump to supply fluid to the manifold via a supply line, a first pressure is determined in the supply line after commanding the solenoid valve to move to the closed position. Upon deactivating the pump to stop supplying fluid to the manifold, a second pressure is determined in the supply line. Based on a difference between the first pressure and the second pressure, the solenoid valve is determined to be one of (a) at least partially open or (b) in the closed position.
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: October 24, 2023
    Assignee: Ford Global Technologies, LLC
    Inventors: Ashwin Arunmozhi, Michael Robertson, Jr., Venkatesh Krishnan, Segundo Baldovino
  • Patent number: 11733120
    Abstract: Methods for testing the integrity of a containment sump in contact with a matrix with a testing apparatus are provided. The testing apparatus may include an underground fixture positioned in contact the matrix, a test chamber, a conduit structure providing fluid communication between the underground fixture and the test chamber, and a pressure source for exerting a pressure that is communicated to the underground fixture via the conduit structure. In some embodiments, a method may include: releasing a test media into the containment sump; generating a negative pressure within the testing apparatus for a time period; and testing for the presence of test media within the testing apparatus. In other embodiments, a method may include: releasing a test media into the testing apparatus; generating a positive pressure within the testing apparatus for a time period; and testing for the presence of test media within the containment sump.
    Type: Grant
    Filed: March 9, 2022
    Date of Patent: August 22, 2023
    Inventor: Daniel W. Brevard
  • Patent number: 11726000
    Abstract: A hybrid structure ultraviolet dye for leak detection in an appliance includes a ceramic matrix defining pores, and fluorophores encapsulated in nanoparticles bonded to the ceramic matrix within the pores. Upon excitation, the fluorophores release energy and emit fluorescent light to be detected under an ultraviolet lamp. The hybrid structure ultraviolet dye can be included in the refrigerant of a sealed system such that upon refrigerant, the hybrid structure ultraviolet dye, or both exit the sealed system at a leak onto external surfaces of the components, the color emitted by the fluorophores can be detected via application of a UV light.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: August 15, 2023
    Assignee: WHIRLPOOL CORPORATION
    Inventors: Muhammad Khizar, Raymond Thompson, Jordan Sahs
  • Patent number: 11719591
    Abstract: The invention relates to a method for detecting leakage of a hollow component, comprising the steps of sealing said hollow component (1, 31), creating a pressure difference P1 and P2 between said hollow component interior and an adjacent compartment/enclosure (2, 32), putting a tracer gas in one of the hollow component or said compartment/enclosure, waiting for an enriching time T and then carrying out a step of transferring, via a non-selective or selective restriction (6, 7; 49), the content of said hollow component or said compartment/enclosure (2; 32) into which tracer gas has not been put, in order to concentrate, in a volume downstream of said restriction (6, 7; 49), the tracer gas that said content may possibly contain, and then in looking for the presence of tracer gas in said volume. The invention also relates to an installation for implementing the method.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: August 8, 2023
    Assignee: ATEQ
    Inventors: Jean Luc Regef, Brian Bright, Youri Dolgorouky
  • Patent number: 11686646
    Abstract: A pressure-adjustable auxiliary control system for high-pressure gas sealing detection includes: a high-pressure chamber environment monitoring unit configured to construct high-pressure test gas sealing environment and to test sealing performance of a sealing member; a first gas pipeline divided into two branches, of which one branch is connected to the high-pressure chamber environment monitoring unit as a first gas replacement path; a second gas pipeline which is connected to a test gas pressurization path together with the other branch of the first gas pipeline, where a first booster pump processing unit and a second booster pump processing unit are sequentially arranged in the test gas pressurization path for pressurizing the test gas, and are connected to the high-pressure chamber environment monitoring unit; a system air control module configured for control of respective air control valves; and a booster pump air control module and a driving air source preprocessing unit.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: June 27, 2023
    Assignee: Tsinghua University
    Inventors: Fei Guo, Yijie Huang, Chong Xiang, Zhaoxiang Zhang, Ganlin Cheng, Lei Tan, Xiaohong Jia, Yuming Wang
  • Patent number: 11680466
    Abstract: A method for operating a kerogen-rich unconventional gas reservoir characterized by there being multiple hydraulically-fractured wells drilled thereinto comprises: recovering a methane-containing gas from a first hydraulically-fractured well drilled into the gas reservoir, steam-methane reforming the recovered methane-containing gas to yield a hydrogen gas and an inorganic carbon-containing gas, injecting at least a portion of the hydrogen gas into a second hydraulically-fractured well drilled into the gas reservoir, and injecting at least a portion of the inorganic carbon-containing gas into a third hydraulically-fractured well drilled into the gas reservoir.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: June 20, 2023
    Assignee: TERRAH2 LLC
    Inventors: Eva Vinegar, Harold J. Vinegar
  • Patent number: 11659308
    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 5, 2022
    Date of Patent: May 23, 2023
    Assignee: CHENGDU QINCHUAN IOT TECHNOLOGY CO., LTD.
    Inventor: Zehua Shao
  • Patent number: 11543187
    Abstract: An additively manufactured heat exchanger configured to transfer heat between a first fluid and a second fluid includes a first channel with a first wall configured to port flow of a first fluid and a second channel with a second wall configured to port flow of a second fluid. The heat exchanger also includes a barrier channel containing unprocessed build powder provided by the additive manufacturing process and is located between the first wall and the second wall. The barrier channel is configured to prevent mixing of the first fluid and the second fluid when one of the first wall and the second wall ruptures.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: January 3, 2023
    Assignee: Hamilton Sundstrand Corporation
    Inventors: James Streeter, Michael Zager
  • Patent number: 11543403
    Abstract: Aspects of the present disclosure include a titration probe that mitigate the occurrences of titration probe clots. A bar such as segment of music wire, is extended across the tip of a titration probe and attached at both ends to the titration probe. The bar is configured to catch clots and prevent the clots from being collected along with a blood sample to be analyzed. The bar effectively reduces the cross sectional area of the titration probe tip.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: January 3, 2023
    Assignee: INSTRUMENTATION LABORATORY COMPANY
    Inventors: Roman Paz, Brian Walker, Zachary Hastings, Michael Aschettino
  • Patent number: 11497361
    Abstract: The present invention discloses an adjustable gas detection device for coal bed comprising a detection direction adjustment assembly, a suction head angle adjustment assembly and an analysis bin, wherein the suction head angle adjustment assembly includes a suction head first-level angle adjustment assembly and a suction head second-level angle adjustment assembly, and the suction head first-level angle adjustment assembly includes a suction head that sucks a gas through a suction pump and sends it into the analysis bin through a suction pipe for analysis; the detection direction adjustment assembly and the suction head angle adjustment assembly jointly adjust a position and a direction of the suction head. The gas detection device for coal bed of the present invention has many degrees of freedom, can quickly complete the angle adjustment, and realizes rapidly-oriented detection, as well as having advantages of high control efficiency, rapid response, flexibility and reliability.
    Type: Grant
    Filed: November 10, 2019
    Date of Patent: November 15, 2022
    Inventors: Shu Tao, Dazhen Tang, Hao Xu, Song Li, Xinyang Men, Yaning Wu
  • Patent number: 11467054
    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: June 15, 2017
    Date of Patent: October 11, 2022
    Assignee: Spectronics Corporation
    Inventors: Jonathan Daniel Cooper, Limin Chen, John Thomas Duerr, Jennifer Marie Hunt
  • Patent number: 11448463
    Abstract: A freeze drying vessel (302) having a freeze drying chamber (304) that includes sloped horizontal shelves (352) that receive frozen particles (282). Each shelf is sloped relative to a horizontal axis (390) and arranged such that a downward slope between successive shelves alternates between first (392) and second (394) directions. At least one connecting member (374, 376, 378, 380, 382, 384, 386, 386, 388) is attached between pairs of shelves. At least one connecting member is attached to an associated vibration element (396, 398, 400, 402) located outside the drying chamber. Each vibration element vibrates a pair of shelves to cause the frozen particles to advance relative to an associated shelf and drop downward from shelf to shelf wherein the shelves heat the frozen particles to promote sublimation to form freeze dried product (284).
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: September 20, 2022
    Assignee: IMA Life North America Inc.
    Inventors: Arnab Ganguly, Francis W. Demarco, Ernesto Renzi
  • Patent number: 11441968
    Abstract: A sealed cooling system includes a coolant tank having a liquid space configured to hold liquid coolant, and a gas space configured to hold gas. A temperature sensor detects the temperature of the liquid coolant. A pressure sensor detects the pressure in the coolant tank. A processor compares the pressure in the coolant tank to predicted pressure in the coolant tank as a function of liquid coolant temperature. The processor determines and outputs a signal indicative of a leak in the sealed cooling system if the pressure in the coolant tank deviates from the predicted pressure in the coolant tank according to predetermined criteria.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: September 13, 2022
    Assignee: Rolls-Royce North American Technologies Inc.
    Inventor: Alan W. Smith
  • Patent number: 11428601
    Abstract: A pressure sensor for an evaporated fuel leak detector is used for checking a leak in a fuel tank and a canister. The pressure sensor includes a sensor unit, a case, and a sealing resin. The sensor unit has a pressure receiving portion, a plurality of conduction terminals, and a mold resin portion. The case is provided with a fluid flow path and a housing recess. The case has an annular inner wall surface that defines the housing recess and surrounds a side surface of the mold resin portion. The inner wall surface of the case is provided with a stepped surface that is parallel to the pressure receiving surface or is inclined by an internal angle of less than 90° with respect to the pressure receiving surface, in a cross section along a direction perpendicular to the pressure receiving surface.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: August 30, 2022
    Assignee: DENSO CORPORATION
    Inventors: Ryoyuu Kishi, Yasuo Katoh, Tomohiro Itoh
  • Patent number: 11428598
    Abstract: A leak detector for checking the sealing tightness of an object to be tested includes a detection inlet to be connected to the object, a first pumping device, and a gas detector. The first pumping device includes a first rough vacuum pump, at least one second rough vacuum pump, and a turbomolecular pump. The gas detector is connected to the turbomolecular pump. The outlet of the at least one second rough vacuum pump is connected to the first rough vacuum pump, between two in-series pumping stages of the first rough vacuum pump.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: August 30, 2022
    Assignee: PFEIFFER VACUUM
    Inventors: Julien Coulomb, Cyrille Nomine
  • 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