Between Fitted Parts (e.g., Joints) Patents (Class 73/46)
  • Patent number: 11519813
    Abstract: A method for testing a device under test includes the steps of applying a vacuum to an interior of the device under test. Pressurizing a predetermined portion on an exterior of the device under test with helium to detect a potential pressure leak. Utilizing a large pressure differential during the exterior testing of the device under test as compared to the vacuum applied during to the interior of the device under test. Detecting a potential leak in the device under test while leaving no residual helium in a wetted area of the device under test.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: December 6, 2022
    Assignee: ADVANCED PRESSURE TECHNOLOGY
    Inventors: Gregory John Mannella, Christopher Neil Meyer
  • Patent number: 11441487
    Abstract: Aspects of the present disclosure include turbomachines designed and configured for high temperature and pressure operation and increased power level output that minimize pressure vessel design requirements, and increase dry gas seal reliability. In some examples, a first radial bearing is located in a high temperature and/or pressure region of the turbomachine between a rotor of the machine and a dry gas seal while other bearings are located outside of the high pressure region.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: September 13, 2022
    Assignee: Concepts NREC, LLC
    Inventor: Kevin D. Fairman
  • Patent number: 11397123
    Abstract: The proposed solution concerns in particular an engine, with at least two valve devices for controlling bleed air in dependence on an operating state of the engine, the at least two valve devices in each case being adjustable between an open position and a closed position. A flow space is provided for at least one fluid flow occurring in the flow space in dependence on a position of the at least two valve devices. Arranged in the flow space is at least one fluid sensor, by means of which at least one position of at least one of the at least two valve devices can be determined on the basis of the fluid in the flow space.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: July 26, 2022
    Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
    Inventors: Sebastian Schrewe, Michael Friedrich
  • Patent number: 11298789
    Abstract: A method for determining and/or monitoring the state of a protective cover, includes the steps of a) obtaining a first state value of at least one characteristic physical, mechanical and/or chemical property of the protective cover at a first point in time; and b) obtaining a second state value of the at least one characteristic property of the protective cover at a second point in time, which is to subsequent to the first point in time; and c) comparing the obtained state values; and d) determining the state of the protective cover based on the comparison performed in step c).
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: April 12, 2022
    Assignee: ARNO ARNOLD GMBH
    Inventors: Thomas Kreutzer, Wolf-Matthias Mang
  • Patent number: 11268876
    Abstract: An apparatus for valve-seat inspection and pressure-resistance inspection for valves which can successively perform a valve-seat inspection and a pressure-resistance inspection on a valve and can quickly and correctly inspect valves, by highly-accurately detecting a leak of search gas in a substantially fixed time; a method for these inspections; and a valve. The apparatus allows a valve-seat leak and pressure-resistance inspection of a test valve, includes a clamp mounting mechanism that fixes the test valve in an inspection chamber, an inspection space adjustment mechanism that adjusts a volumetric capacity of an inspection space S of the chamber, and a gas sensor for valve-seat inspection arranged in a flow path of the test valve and a gas sensor provided in the chamber for a pressure-resistance inspection of the valve, in which the volumetric capacity of the inspection space S of the chamber is adjusted to be substantially fixed.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: March 8, 2022
    Assignee: KITZ CORPORATION
    Inventors: Naoki Kira, Masatake Nakashinden
  • Patent number: 11255358
    Abstract: A manifold structure for a fluid reclamation apparatus incorporated into a hydraulic system having inner and outer fluid lines and with annular containment space between the inner and outer fluid lines for capturing fluid leaking from the inner fluid line, the manifold structure being connected to least one end the inner and outer fluid lines and contains a chamber for receiving leaked fluid from the annular space and including a manifold inner sleeve to which the inner fluid line is coupled, the inner sleeve being retained within a manifold outer sleeve to which the outer fluid line is coupled and having a lateral bore extending from the chamber and through the outer sleeve for delivering leaked fluid into a reclamation line and back into the hydraulic system, the inner sleeve being rotatably mounted within the outer sleeve by at least one O-ring seated in a groove around the inner sleeve and sealingly abutting the inner surface of the outer sleeve.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: February 22, 2022
    Inventor: Bryan J. Srock
  • Patent number: 11203979
    Abstract: Apparatus and system for containing a rupture of a duct. The apparatus includes an air-permeable sheet, such as a wide-weave fiberglass sheet. The air-permeable sheet includes a strap arranged on a first side of the sheet such that it forms diamond-shaped patterns along a longitudinal axis. The strap can be made of a tight-weave fiberglass. Laterally-spaced corners of the diamond-shaped patterns include connection members that can be engaged to affix the strap and the air-permeable sheet around a duct. Various aspects include an air-impermeable air barrier surrounding the wide-weave fiberglass sheet and strap. The air barrier can include a window that directs air from a ruptured duct. Various aspects can be used on a bleed-air duct of an aircraft. The window of the air barrier can be aimed at a temperature sensor. A valve can close the bleed-air duct if the temperature sensor detects a high temperature leak.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: December 21, 2021
    Assignee: THE BOEING COMPANY
    Inventors: Christopher Wheaton, Mark S. Shander
  • Patent number: 11205791
    Abstract: An apparatus for inspecting a stack assembly including a fluid channel through which fluid is supplied into fuel cell stacks includes a frame, a conveyor that is installed in the frame and that carries the stack assembly in a predetermined direction of movement to locate the stack assembly in a predetermined inspection position, a masking mechanism that is installed in the frame and that masks a fluid inlet and a fluid outlet of the stack assembly to seal the fluid channel of the stack assembly from outside the stack assembly, and a gas injection mechanism that is installed in the frame and that injects an inspection gas into the fluid channel of the stack assembly to inspect a sealing state of the fluid channel in the stack assembly, in a state in which the stack assembly is sealed by the masking mechanism.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: December 21, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Hee Seung Hong, Sung Hoon Jeong
  • Patent number: 11067470
    Abstract: Systems, devices, and methods for leak testing surgical conduit grafts or valved conduits such as aortic-valved conduits with a pressurized gas such as air. Air is non-destructive and especially useful for leak testing conduits that have coatings or sealants that may be functionally impacted when exposed to fluids such as water or saline. Open ends of the conduit are clamped and sealed, and a pressurized gas introduced into an inner lumen thereof. A change in mass flow rate is measured to quantify the leakage. One end of a tubular conduit may be clamped to a fixed manifold, and the opposite end to a manifold slidably mounted to accommodate any conduit elongation when pressurized. The clamping and sealing structure may be pneumatic and/or mechanical, and complementary contoured clamp members may be used to seal a scalloped external sealing ring of an aortic conduit.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: July 20, 2021
    Assignee: Edwards Lifesciences Corporation
    Inventors: Mark Van Nest, Alyssa E. Kornswiet, Jackie P. Lau
  • Patent number: 10996182
    Abstract: A sensor comprises a plurality of sensor elements arranged in an array. Each sensor element is memristive and has an electrical resistance characteristic related to exposure to a species to be sensed. The sensor elements are arranged to be connectable such that at least one sensor element is connected in parallel with at least one other sensor element. By using appropriate connections, the array of sensor elements can be read.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: May 4, 2021
    Assignee: OXFORD BROOKES UNIVERSITY
    Inventors: Abusaleh Jabir, Marco Ottavi, Jimson Mathew, Eugenio Martinelli, Corrado Di Natale, Adedotun Adeyemo
  • Patent number: 10996130
    Abstract: A toilet bolt cap liquid sensor including an outer shell defining an interior cavity sized to receive a portion of a toilet bolt and house a liquid sensor; the liquid sensor including an exposed surface to the interior cavity. The liquid sensor can be used in a leak detector system for a toilet comprising: a flat base sheet bound by an outer perimeter an interior aperture; a wick material barrier coupled to the base between the aperture and the outer perimeter in a continuous or substantially continuous strip around the aperture; a wick material projection extending from the wick material barrier; and a toilet bolt cap including an outer shell defining an interior cavity for receiving an end of a toilet bolt, the toilet bolt cap housing the liquid sensor the liquid sensor including an exposed surface to the interior cavity for contact in fluid communication with the wick material projection.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: May 4, 2021
    Inventor: Mahdi Ghodrati
  • Patent number: 10948378
    Abstract: A device, system, and method for detecting a leak (and determining the leak rate of the leak) for equipment, particularly generators, the device including a main body connected to the tested equipment and to an air supply source, wherein the main body includes a number of stages each having a valve and orifice such that flow of air through the independent stages is selectively controllable, where a change in the differential pressure recorded during flow of the air through a particular stage indicates a leak, and wherein the differential pressure recorded can be used to calculate the rate of leak in the equipment.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: March 16, 2021
    Inventor: Nick Rebich
  • Patent number: 10648093
    Abstract: In a water electrolysis system and a method of controlling the water electrolysis system, a control device places a high pressure water discharge solenoid valve, a depressurizing solenoid valve, and a low pressure water discharge solenoid valve in the closed state. Further, a pressure acquisition unit obtains the electrolysis time pressure as a pressure in the low pressure water sealing container during production of hydrogen by a water electrolyzer. Further, the control device determines the occurrence of hydrogen leakage in a depressurizing line based on at least the electrolysis time pressure.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: May 12, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Daisuke Kurashina, Jun Takeuchi
  • Patent number: 10641677
    Abstract: A plating method includes holding a substrate with a substrate holder while bringing a sealing member into pressure contact with a peripheral portion of the substrate to form an enclosed internal space in the substrate holder; performing a first-stage leakage test of the substrate holder by producing a vacuum in the internal space and checking whether pressure in the internal space reaches a predetermined vacuum pressure within a certain period of time; and if the substrate holder has passed the first-stage leakage test, performing a second-stage leakage test of the substrate holder by closing off the internal space after producing the vacuum therein and checking whether a change in the pressure in the internal space reaches a predetermined value within a certain period of time.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: May 5, 2020
    Assignee: EBARA CORPORATION
    Inventors: Yoshio Minami, Jumpei Fujikata, Takashi Kishi
  • Patent number: 10605035
    Abstract: A blow out preventer includes a blow out preventer body, at least one pipe ram disposed in the blow out preventer body which opens or closes in at least one respective cavity defined by the blow out preventer body, an inverted pipe ram disposed in the blow out preventer body which opens or closes in a respective cavity defined by the blow out preventer body, and a pressure management system for adjusting pressure within the blow out preventer below damaging pressure levels as one or more of the at least one pipe ram and the inverted pipe ram open or close in a respective cavity. In some cases, a second pipe ram disposed in the blow out preventer body which opens or closes in a respective cavity defined by the blow out preventer body.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: March 31, 2020
    Assignee: Schlumberger Technology Corporation
    Inventors: Rod Shampine, Idalia Ovalle Stevenson
  • Patent number: 10527586
    Abstract: A method of inspecting a joint of a heat exchanger comprises: scanning the heat exchanger 10 with an electromagnetic acoustic transducer (EMAT) sensor 110 by scanning the EMAT sensor 110 over an area of the heat exchanger 10 in a scanning pattern; collecting data from the EMAT sensor 110; analysing the data; and determining a status of the joint based on the analysed data.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: January 7, 2020
    Assignee: HS MARSTON AEROSPACE LIMITED
    Inventor: Paul Phillips
  • Patent number: 10385862
    Abstract: A rotary machine system includes: a rotary machine including a gas seal portion; a gas seal device connected to the rotary machine and that supplies a seal gas to the gas seal portion; and a connecting pipe that connects the gas seal portion and the gas seal device. The rotary machine includes a casing through which a working fluid flows; a rotatable rotary shaft; and the gas seal portion that seals the working fluid by the seal gas having a pressure higher than a pressure of the working fluid in the casing. The gas seal device includes: a seal gas supply pipe through which the seal gas delivered to the connecting pipe flows; a pressure regulating valve provided in the seal gas supply pipe and that adjusts the pressure of the seal gas supplied to the gas seal portion; and a control part.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: August 20, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
    Inventors: Ryo Egami, Takeshi Kaneko, Kazutoshi Yokoo, Masaki Shakuda, Masahiro Hayashi, Tomoaki Takeda
  • Patent number: 10354195
    Abstract: Technical solutions are described for forecasting leaks in a pipeline network. An example method includes identifying a subsystem in the pipeline network that includes a first station. The method also includes accessing historical temporal sensor measurements of the stations. The method also includes generating a prediction model for the first station that predicts a pressure measurement at the first station based on the historical temporal sensor measurements at each station in the subsystem. The method also includes predicting a series of pressure measurements at the first station based on the historical temporal sensor measurements. The method also includes determining a series of deviations between the series of pressure measurements and historical pressure measurements of the first station and identifying a threshold value from the series of deviations, where a pressure measurement at the first station above or below the threshold value is indicative of a leak in the subsystem.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: July 16, 2019
    Assignee: Utopus Insights, Inc.
    Inventors: Harsh Chaudhary, Younghun Kim, Tarun Kumar, Abhishek Raman, Rui Zhang
  • Patent number: 10330558
    Abstract: Various embodiments include a tool for leakage testing a component, along with a related testing method. In some cases, the tool includes: a seal assembly for sealing an opening in the component, the seal assembly having: a front plate defining a pressure chamber around the opening in the component; a collar coupled with the front plate and surrounding sidewalls of the component; an insert extending between the front plate and the collar; an annular seal member between the collar and the insert; and a floating seal between the collar and the front plate, wherein the seal assembly is configured to flexibly seal the opening in the component; and a valve for controlling fluid flow into the pressure chamber during the leakage testing of the component.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: June 25, 2019
    Assignee: General Electric Company
    Inventors: Dariusz Oliwiusz Palys, Daniele Mascaro, Michael Thomas Maurer, Marcel Georg Rieker
  • Patent number: 10240997
    Abstract: An assembly to detect fluid leaks is provided herein. For example, the assembly includes a plug, a gasket, and a sensor member. The plug is connected to a first electronic module. The gasket surrounds the plug to provide a fluid-tight seal around the plug. The sensor member is connected to the gasket to detect fluid loss that exceeds a predetermined amount.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: March 26, 2019
    Assignee: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP
    Inventors: John Franz, Tahir Cader, William Kirk Norton
  • Patent number: 10184869
    Abstract: A test fixture for testing a flat sample of a material is disclosed. The test fixture having a test vessel for a fluid selected to test the desired properties of the material. The test fixture having a housing with a first end, a second end, and at least one wall extending from the first end to the second end. The housing may have a cylindrical configuration, a parallelpiped configuration, or other geometries. An opening in the housing is provided for receiving the flat test sample such that the assembled housing and the sample form a pressure vessel with an interior chamber.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: January 22, 2019
    Assignee: Virtus Precision Tube, LLC
    Inventor: Timothy L. Goebel
  • Patent number: 10119882
    Abstract: Systems, devices, and methods for leak testing surgical conduit grafts or valved conduits such as aortic-valved conduits with a pressurized gas such as air. Air is non-destructive and especially useful for leak testing conduits that have coatings or sealants that may be functionally impacted when exposed to fluids such as water or saline. Open ends of the conduit are clamped and sealed, and a pressurized gas introduced into an inner lumen thereof. A change in mass flow rate is measured to quantify the leakage. One end of a tubular conduit may be clamped to a fixed manifold, and the opposite end to a manifold slidably mounted to accommodate any conduit elongation when pressurized. The clamping and sealing structure may be pneumatic and/or mechanical, and complementary contoured clamp members may be used to seal a scalloped external sealing ring of an aortic conduit.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: November 6, 2018
    Assignee: Edwards Lifesciences Corporation
    Inventors: Mark Van Nest, Alyssa E. Kornswiet, Jackie P. Lau
  • Patent number: 9959004
    Abstract: A deformation sensor comprises at least two electrodes on the surface of a substrate. The electrodes are separated by a gap, and the electrodes are arranged so that the gap comprises at least a part of a closed geometric shape. The gap contains a material loaded with conductive or semiconductive nanoparticles, whereby deformation of the substrate causes the resistance between the at least two electrodes to change.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: May 1, 2018
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Jouko Juho Kalevi Lång, Vicente Calvo Alonso
  • Patent number: 9921127
    Abstract: An assembly and method of testing the integrity of a sealing ring of a flexible pipe are disclosed. The method includes locating a first sealing ring adjacent a first collar member and a layer of flexible pipe body; energizing the first sealing ring by urging the sealing ring towards a primary pressure-retaining end fitting component, or by urging the pressure-retaining component towards the sealing ring; locating a second sealing ring adjacent the first collar member and a second collar member; energizing the second sealing ring by urging the sealing ring towards the pressure-retaining component, or by urging the pressure-retaining component towards the sealing ring; and pressurizing the region between the first sealing ring and the second sealing ring through a port extending towards the region to a predetermined pressure of 5 MPa or greater.
    Type: Grant
    Filed: June 24, 2013
    Date of Patent: March 20, 2018
    Assignee: GE Oil & Gas UK Limited
    Inventors: Judimar de Assis Clevelario, Fabio de Souza Pires, Felipe Areas Vargas, Everton Vieira de Almeida, Andre Luis de Souza Breves
  • Patent number: 9664590
    Abstract: A container has a tube-like or tubular shell, which is sealed against the surrounding atmosphere and has a weld seam at at least one end. For checking the tightness of the container the internal pressure in an interior space of the container is increased by means of external action and the thereby ensuing deformation of the weld seam is detected. Provisions are made in this connection for the weld seam to be clamped between clamping elements before increasing the internal pressure only in a partial area of its surface, which has a distance from the end of the weld seam facing the interior space.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: May 30, 2017
    Assignee: IWK Verpackungstechnik GmbH
    Inventor: Fabian Hesse
  • Patent number: 9631990
    Abstract: A device for testing mechanical seal performance includes a main shaft (4), a working chamber (18) with two end covers (6, 13) respectively located at two ends thereof, and two groups of mechanical seals to be tested (7); wherein a shaft sleeve (5) and the main shaft (4) form a clearance fit and penetrate through the end covers (6, 13) at two ends of the working chamber (18) together; the shaft sleeve (5) extends outside U-shaped openings (23) which are arranged at two ends of the end covers (6, 13) and arranged on the same generatrix; driven pins (15) are arranged on the locations of the main shaft (4) corresponding to the U-shaped openings (23); the middle part of the shaft sleeve (5) is provided with two segments of threads having the same thread pitch and opposite rotating directions.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: April 25, 2017
    Assignee: NANJING FORESTRY UNIVERSITY
    Inventors: Jianjun Sun, Qiaoan Tu, Qiong Hu, Chenbo Ma, Qiuping Yu, Min Zhou
  • Patent number: 9304053
    Abstract: Embodiments of a system that can detect leaks that occur in seals, and in one example, to seals found in a valve. In one embodiment, the system utilizes sensors that measure fluid properties of a sample volume proximate to the seal. The system can compare data from these measurements with data from a sample of a reference fluid (e.g., ambient air) to indicate the presence of working fluid in the sample volume. This result may indicate problems with the seal, e.g., degradation of the seal that is meant to prohibit the working fluid from migrating out of the valve.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: April 5, 2016
    Assignee: Dresser, Inc.
    Inventors: Harold Randall Smart, Edward James Nieters, Frederick Wilson Wheeler
  • Patent number: 9303806
    Abstract: A closure assembly for terminating an end of a pipe (4) has an end-cap (4) holding and having fluid-tight connection to a mutually coaxial cylindrical plug (2) and circular collar (3). The plug (2) and the collar (3) are configurable between respective engaged and disengaged configurations and mutually spaced to provide an annular space therebetween when the plug (2) and collar (3) are in their disengaged configurations. The annular space is arranged to receive an end of a pipe (1) arranged coaxially with the plug (2) and collar (3), the plug (2) and collar (3) being respectively slidable into and over the end of the pipe (1). The plug (2), when in its engaged configuration, grips the inner face of said pipe (41) and to provide a fluid tight seal and the collar (3), when in its engaged configuration, grips the outer face of the pipe (1) and to provide a fluid tight seal.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: April 5, 2016
    Assignee: Furmanite Worldwide, Inc.
    Inventors: Mark Burton, Adam Thistlethwaite, Craig Todd, Alex Butler
  • Patent number: 9207143
    Abstract: A leak detection system includes a pressure system that requires leak and/or pressure testing. A pressure sensor coupled to the pressure system senses a first pressure at time t0, after which fluid pumping system provides a selected volume of test fluid to the pressure system. The pressure sensor senses a test pressure at time t1 and at selected intervals ‘n’ to time t(n+1) and transmits a signal reflective of the pressures at each time to a computer system for recording and storage on a computer readable medium. A software application operating on the computer system is configured to calculate a leak detection value, which is a function of a ratio of the first pressure at time t0 and the test pressure at time t1; the test pressure at time t1 and the test pressure at time t2; and so on to a test pressure at the timen and the test pressure at the time t(n+1). A graphical output displays the leak detection value as a function of time.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: December 8, 2015
    Assignee: Innovative Pressure Testing, LLC
    Inventors: Charles M. Franklin, Richard A. Cully
  • Patent number: 9182066
    Abstract: A particulate-accommodating fluid flow directing apparatus comprises a failure detection housing containing a flow directing insert, the housing serving as a pressure boundary; failure at any location along the insert being detectable by means associated with the housing. The insert can be manufactured of erosion resistant materials, including non-ductile materials such as ceramics. The insert is sealed to the housing at an inlet and a discharge forming a pressure chamber between the insert and housing. The pressure chamber can be maintained at a pad pressure complementary to the process pressure, the pad pressure being maintained and monitored for indication of insert failure.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: November 10, 2015
    Assignee: SPECIALIZED DESANDERS INC.
    Inventor: Christopher A Hemstock
  • Patent number: 9170174
    Abstract: A method for monitoring functionality of a seal assembly within an injector feed assembly is described. The method includes providing a buffer fluid to the seal assembly, measuring at least one of a pressure and a flow rate of the buffer fluid, and determining a functionality of the seal assembly based at least partially on the at least one of a pressure and a flow rate of the buffer fluid.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: October 27, 2015
    Assignee: General Electric Company
    Inventors: Anthony Holmes Furman, John Saunders Stevenson, Raymond Douglas Steele, Beth Etta McCracken
  • Patent number: 9157829
    Abstract: The invention relates to a monitoring apparatus (312) for a steam plant, the apparatus comprising: a vibro-acoustic sensor (311) associated with a component of the steam plant, the sensor (311) being configured to provide an output indicative of the operating condition of the component; and a condition monitoring unit (313) coupled to the sensor (311); wherein the condition monitoring unit (313) is configured to analyze the output of the sensor (311) in order to identify characteristics attributed to live steam and characteristics attributed to condensate and to estimate steam leakage and condensate load for the component based on the identified characteristics. The invention also relates to a corresponding method of monitoring a steam plant.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: October 13, 2015
    Assignee: Spirax-Sarco Limited
    Inventor: Lyubka Spasova
  • Patent number: 9133770
    Abstract: An enclosure assembly for enclosing a portion of a fuel delivery system of an engine, such as a portion of a fuel nozzle body that extends away from the engine, is disclosed herein. The enclosure assembly includes a nozzle body cover portion operable to enclose a fuel nozzle body. The enclosure assembly also includes a fuel line cover portion unitary with the nozzle body cover portion and operable to enclose a portion of a fuel supply line connected to the fuel nozzle body. Both the nozzle body cover portion and the fuel line cover portion are defined by a first and second half-shells operable to cooperate together in a clam shell arrangement.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: September 15, 2015
    Assignee: Rolls-Royce Corporation
    Inventors: Jeffrey P. Henkle, Thomas R. Bowman, Ronald P. Porter
  • Patent number: 9133839
    Abstract: In a method of detecting a fault in a fluid-working machine including a plurality of working chambers of cyclically varying volume, each working chamber is operable to displace a volume of working fluid which is selectable for each cycle of working chamber volume to carry out a working function responsive to a received demand signal. An output parameter of the fluid working machine, which is responsive to the displacement of working fluid by one or more of the working chambers to carry out the working function, is measured. It is determined whether the measured output parameter fulfils at least one acceptable function criterion, taking into account the previously selected net displacement of working fluid by a working chamber during a cycle of working chamber volume to carry out the working function.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: September 15, 2015
    Assignee: ARTEMIS INTELLIGENT POWER LIMITED
    Inventors: William Hugh Salvin Rampen, Niall James Caldwell, Michael Richard Fielding, Stephen Michael Laird, Uwe Bernhard Pascal Stein, John Tearlach Campbell
  • Patent number: 8984929
    Abstract: A pressure indicating device for detecting and isolating leakage of toxic and/or pyrophoric gasses from within various packages is disclosed. The device can affix to a user port of a cylinder package. The device has a flexible disc-like structure which is fine tuned to outwardly flex in response to a build-up of pressure of the gas exerted against the disc-like structure. The flexed disc contacts a movable pin and pushes the push outwards from within the device. The outward movement of the pin pierces a paper seal extending over the device, thereby indicating a leak from within the valving of the package. The device withstands the pressure exerted against it, thereby also isolating the leak of the pressurized gas.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: March 24, 2015
    Assignee: Praxair Technology, Inc.
    Inventors: Lisa A. Fanti, Lloyd A. Brown, Serge M. Campeau, Ronald F. Spohn, Murat Gunay
  • Patent number: 8967185
    Abstract: A leak detector for an insulated duct carrying pressurized hot air comprises a cover secured over a circumferential cut in the insulation of the duct, or over a joint connecting duct sections, thereby creating a reservoir of hot air which has leaked from the duct or joint, a manifold block defining a conduit therein in communication with the hot air reservoir and a cap for securing heat sensitive wires to manifold at the end of the conduit such that the hot air from the hot air reservoir impinges directly on the heat sensitive wires. The leak detector includes flow control mechanisms in the body of the manifold block, to prevent false alarms arising from nominal leakage resulting from ordinary operation of the duct system.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: March 3, 2015
    Assignee: Senior IP GmbH
    Inventors: Leslie Fernandes, Arnaud Amy
  • Publication number: 20140353916
    Abstract: A substantially air-tight triple seal arrangement along a seam between first and second tool segments comprises inner, middle and outer seals forming first and second substantially air tight vacuum chambers.
    Type: Application
    Filed: June 25, 2013
    Publication date: December 4, 2014
    Inventor: Kenneth M. Dull
  • Publication number: 20140352408
    Abstract: A diagnostic system and method for a pressure regulator in a process plant is provided. The diagnostic apparatus includes a processor operatively coupled to the pressure regulator; a memory operatively coupled to the processor; and a sensor operatively coupled to an inlet valve of the pressure regulator, an exhaust valve of the pressure regulator, and the processor. A diagnostic module is stored in the memory, and when executed by the processor, presents a diagnostic tool at a user interface.
    Type: Application
    Filed: June 3, 2014
    Publication date: December 4, 2014
    Inventors: Linda Rose Tharaldson, Gordon Cameron Muir, Jeffrey Allen Wakefield
  • Publication number: 20140326052
    Abstract: Apparatus and method for detecting seal failure of a sealed region within a conveyor component. A fluid line extends out of the sealed region and a sensor is connected to the fluid line. A valve is connected subsequent to the sensor, and a fluid pump that is connected subsequent to the valve. A controller is connected to the sensor, the valve, and the fluid pump. The sensor is external to the sealed region and the valve is a solenoid valve. The sealed region is within an idler pulley that has a drum shell with an end lid affixed at an axial end thereof, and a shaft. The sealed region can be contained within a motorized drum or a hollow conveyor frame structure. A method detects seal failure by forming a sealed region bounded by a surface and a seal, and altering a fluid pressure, th time rate of change of which is monitored.
    Type: Application
    Filed: August 13, 2012
    Publication date: November 6, 2014
    Applicant: MOL BELTING SYSTEMS, INC.
    Inventors: Laurens G. J. Wolters, Michael Hendrik DeGroot
  • Publication number: 20140301082
    Abstract: Disclosed is a housing includes a housing body and a cap assembly. The cap assembly includes an inner member, an outer member and a resilient compression gasket disposed between the inner and outer members. The inner member has a first valve aperture, the outer member has a second valve aperture and the resilient, compression gasket has a third valve aperture which together form an air valve in the cap assembly.
    Type: Application
    Filed: May 31, 2013
    Publication date: October 9, 2014
    Inventor: JEREMY HOCHMAN
  • Publication number: 20140298894
    Abstract: A system and technique for pressure testing a line portion, connection, or other linking piece of unknown leak characteristics. The technique includes applying predetermined pressure to the linking piece to be tested as well as to another of known non-leaking characteristics. Thus, a differential of recorded pressures may be monitored over time and against a predetermined known parameter. For example, an acceptance boundary with a set level of confidence may be established against which the differential may be evaluated. The boundary may be developed by prior testing of known non-leaking characteristics.
    Type: Application
    Filed: April 9, 2013
    Publication date: October 9, 2014
    Applicant: Schlumberger Technology Corporation
    Inventors: Michael James Alff, Melissa Odom, Lee Jackson
  • Publication number: 20140260554
    Abstract: An example leak detector assembly includes: a leak detection device, including: a main body; and a plurality of electrical filaments extending across the main body, each of the electrical filaments being configured to detect fluid from a leak and thereupon deliver an electrical current.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Inventor: William J. Rankin
  • Patent number: 8800373
    Abstract: A transducer assembly includes an acoustic sensor element and an acoustic waveguide. The acoustic waveguide includes a rotatable acoustic coupler, a tube, and a foot. The foot has a mounting surface that is mountable on a fluid conduit. A circuit assembly couples to acoustic sensor element and provides a diagnostic output.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: August 12, 2014
    Assignee: Rosemount Inc.
    Inventor: Lowell A. Kleven
  • Publication number: 20140208831
    Abstract: Provided herein is a leak detector comprising: a flat base sheet bound by an outer perimeter and an interior aperture; a wick material barrier coupled to the base between the aperture and the outer perimeter in a continuous or substantially continuous strip around the aperture, the wick material barrier interrupted by one or more gap regions, each gap region defined by a pair of wick material projections starting at either end of the gap region and extending radially outward; a liquid sensor in fluid communication with the pair of wick material projections; and a liquid-impermeable material coupled to the base sheet and surrounding the pair of wick material projections to form a liquid-impermeable enclosure defining an interior cavity comprising the pair of wick material projections and the liquid sensor.
    Type: Application
    Filed: October 10, 2012
    Publication date: July 31, 2014
    Inventor: Mahdi GHODRATI
  • Publication number: 20140165706
    Abstract: A pressure indicating device for detecting and isolating leakage of toxic and/or pyrophoric gasses from within various packages is disclosed. The device can affix to a user port of a cylinder package. The device has a flexible disc-like structure which is fine tuned to outwardly flex in response to a build-up of pressure of the gas exerted against the disc-like structure. The flexed disc contacts a movable pin and pushes the push outwards from within the device. The outward movement of the pin pierces a paper seal extending over the device, thereby indicating a leak from within the valving of the package. The device withstands the pressure exerted against it, thereby also isolating the leak of the pressurized gas.
    Type: Application
    Filed: December 19, 2012
    Publication date: June 19, 2014
    Inventors: Lisa A. Fanti, Lloyd A. Brown, Serge M. Campeau, Ronald F. Spohn, Murat Gunay
  • Patent number: 8746041
    Abstract: A system for detecting and communicating moisture leaking from a fluid conduit of the type comprising a fitting configured to mate with the fluid conduit, the fitting including an outer surface including an outer edge portion that is enclosed within the fluid conduit when positioning the fluid conduit over at least a portion of the outer surface, wherein the system includes a sensor for detecting moisture, the sensor being positioned proximate to the outer edge portion of the fitting and configured to generate a signal representing a result of moisture detection, and a receiver configured to receive the signal generated by the sensor. The system may include a communication circuit to provide wired or wireless communication between the sensor and the receiver. Other systems and method for detecting and communicating moisture leakage are further disclosed herein.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: June 10, 2014
    Inventors: Joseph J. Howard, Mark A. Hess, Benjamin Glace
  • Publication number: 20140150533
    Abstract: Methods and apparatus for detecting machine tool window airtightness includes an airtight state detector, having a sensor detecting the pressure in a space of the window, and a judging section for determining appropriateness of the airtight state of the space based on a pressure value from the pressure sensor and outputting a judgment result. Pressure in the window space, which initially may be pressurized or pressure-reduced, is detected intermittently by the pressure sensor, and the judging section determines appropriateness of the airtight state of the window on the basis of a variation state of the detected pressure.
    Type: Application
    Filed: November 19, 2013
    Publication date: June 5, 2014
    Applicant: Mori Seiki Co., Ltd.
    Inventors: Katsuhiko Ono, Norio Sato, Kimiyuki Nishimura
  • Patent number: 8739607
    Abstract: A fixture for evaluating a metal-to-metal seal. A first metal seal surface and a second metal seal surface are brought into initial contact by engagement of a male connection of a first tubular component and a female connection of a second tubular component to form a metal-to-metal seal. A contact pressure regulator is provided to alter the contact load acting in the interfacial region between the first metal seal surface and the second metal seal surface in a predictable manner. An inlet passage is provided to communicate test fluid to an inlet side of the metal-to-metal seal. An outlet passage is provided on an outlet side of the metal-to-metal seal. In accordance with the method, a capacity of the metal-to-metal seal is expressed as the pressure differential required to just induce leakage given a measure of absolute contact load greater than zero.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: June 3, 2014
    Assignee: Noetic Engineering 2008 Inc.
    Inventor: Maurice Slack
  • Patent number: 8714236
    Abstract: A zone-control unit for use in a heating, ventilation, and air conditioning (HVAC) system, the zone-control unit includes a heat exchanger, an inlet piping assembly coupled with the heat exchanger for supplying fluid to the heat exchanger, an outlet piping assembly coupled with the heat exchanger for receiving fluid from the heat exchanger, a bracket that maintains the inlet piping assembly and the outlet piping assembly in positional relationship, and an ancillary component coupled with the heat exchanger.
    Type: Grant
    Filed: January 10, 2008
    Date of Patent: May 6, 2014
    Inventor: John C. Karamanos
  • Patent number: 8701467
    Abstract: A leak detection feature for a fluid conduit. The leak detection feature facilitates the monitoring of fluid leaks at the interface of two adjoining conduit flange fittings. An embodiment of a flange fitting with a leak detection feature for a fluid conduit having an opening. The flange fitting includes a flange body around the opening of the fluid conduit, a leak detection passageway formed in the flange body, and a leak detection port formed in the flange body. The flange body has a sealing face surface configured to mate with a cooperating flange fitting, and the leak detection passageway terminates at the sealing face surface. The leak detection port is in fluid communication with the leak detection passageway, and the leak detection port is configured for fluid communication with a leak sensing apparatus.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: April 22, 2014
    Assignee: The Boeing Company
    Inventors: James A. Carns, Theron L. Cutler, Mark A. Shelly