By Vibration Patents (Class 73/24.01)
  • Patent number: 11371975
    Abstract: A gas sensor includes a sensor element, an inner protective cover having one or more element chamber inlets and including a first member and a second member, and an outer protective cover having one or more outer inlets. A first gas chamber between the outer protective cover and the inner protective cover has a first space and a second space. A cross-sectional area Cs that is a flow channel cross-sectional area in the second space when the measurement-object gas passes from an outside of the second member toward an inside of the second member just above the second member is greater than or equal to 14.0 mm2, and a cross-sectional area Ds that is a cross-sectional area perpendicular to a circumferential direction of the inner protective cover in the second space is greater than or equal to 0.5 mm2 and less than or equal to 6.4 mm2.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: June 28, 2022
    Assignee: NGK INSULATORS, LTD.
    Inventors: Yosuke Adachi, Takeshi Omori
  • Patent number: 11231393
    Abstract: A gas sensor includes: a main elongate gas chamber with a supply opening arranged on a first end of the main gas chamber and a discharge opening positioned opposite the supply opening and arranged on a second end of the main gas chamber, to permit gas to flow through the main gas chamber; a magnetic field device providing a magnetic field in the main gas chamber; and an ultrasonic transmitter and receiver sensor arranged on either the first or second end of the main elongate gas chamber for directing an ultrasonic wave along a longitudinal axis of the main elongate gas chamber, an opposite end of the main elongate gas chamber being reflective for an ultrasonic wave, or an ultrasonic transmitter sensor arranged on a first end of the main elongate gas chamber and an ultrasonic receiver sensor arranged on a second end of the main elongate gas chamber.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: January 25, 2022
    Assignee: EATON INTELLIGENT POWER LIMITED
    Inventors: Alan Massey, Yogesh Shinde
  • Patent number: 11187647
    Abstract: In accordance with an embodiment, a method of measuring a gas concentration includes modulating an infrared light source according to a frequency-hopped sequence or according to a pulse sequence, receiving a microphone signal from an output of a microphone acoustically coupled to a gas exposed to infrared light produced by the infrared light source; bandpass filtering the microphone signal using a bandpass filter; and estimating the gas concentration from the filtered microphone signal.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: November 30, 2021
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Cecilia Carbonelli, Renato Bessegato, Wolfgang Furtner
  • Patent number: 11181508
    Abstract: A gas sensing system includes a driving circuit chip, and a gas sensor, a temperature sensor, and a humidity sensor, which are located on the driving circuit chip. The gas sensing system compensates a gas sensing result based on at least one of a temperature sensing result and a humidity sensing result and generates a gas sensing signal. The gas sensor includes a first resonator and a first sensing film being configured to sense a first gas and located on the first resonator to be exposed to the outside. The temperature sensor includes a second resonator and an encapsulation layer located above the second resonator not to expose the second resonator to the outside, and the humidity sensor includes a third resonator.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: November 23, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Si-hoon Lee, Min-chul Lee, Kwang-min Park, Jeong-ho Park
  • Patent number: 11143548
    Abstract: Systems and Methods for controlling one or more mechanical resonators and determining information from resonant shift of the resonator(s) behavior, including at least one mechanical resonator, an excitation element for driving the resonator(s), a sensor for monitoring the motion of the resonator(s), at least one phase locked loop (PLL) in feedback between the excitation and monitoring elements, wherein each PLL is configured to operate at or near a different resonant mode of the resonator(s), and a processor for determining information from PLL internal signals indicative of a resonator frequency shift.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: October 12, 2021
    Assignee: Massachusetts Institute of Technology
    Inventors: Nathan Cermak, Selim Olcum, Steven Charles Wasserman, Scott R. Manalis
  • Patent number: 11101622
    Abstract: A particle measuring apparatus includes a charging unit to form charged particles from aerosol particles carried by an input flow, and a particle detector to provide an electric current by collecting the charged particles, wherein the charging unit in turn includes a counter-electrode having a substantially hemispherical inner portion to define a charging space, an inlet channel for guiding aerosol particles into the charging space, a corona electrode to form charged particles from the aerosol particles by generating a corona discharge in the charging space, and an outlet channel for guiding charged particles from the charging space to the detector.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: August 24, 2021
    Assignee: Dekati Oy
    Inventors: Ville Niemelä, Leo Holma, Sami Lundahl, Tyler Beck
  • Patent number: 11054397
    Abstract: A processor is configured to include a correlation object determination unit for establishing: a first to-be-correlated signal established on the basis of a first upper-limit rate of change, which is the rate of change of an upper-limit envelope of a direct wave signal, and a first lower-limit rate of change, which is the rate of change of a lower-limit envelope of the direct wave signal; and a second to-be-correlated signal established on the basis of a second upper-limit rate of change, which is the rate of change of an upper-limit envelope of a round-trip-delayed wave signal, and a second lower-limit rate of change, which is the rate of change of a lower-limit envelope of the round-trip-delayed wave signal. The processor is also configured to include a correlation processing unit for establishing a correlation value between the first to-be-correlated signal and a signal based on the second to-be-correlated signal.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: July 6, 2021
    Assignees: Ueda Japan Radio Co., Ltd., JAPAN RADIO CO., LTD., Nisshinbo Holdings Inc.
    Inventors: Kouichi Tsujiya, Yoshifumi Shinfuku, Yasuhiro Toriyama
  • Patent number: 11029297
    Abstract: Methods and systems for determining concentrations of gases within a process chamber are provided. In one or more embodiments, a method includes introducing a first gas into a first cavity of a gas monitoring module, where the first cavity is thermally coupled to a second cavity of the gas monitoring module, and where the first cavity contains a first inlet and the first gas is introduced via the first inlet. The method includes introducing a gas mixture containing the first gas and a second gas into a second cavity, where the second cavity contains a second inlet and the gas mixture is introduced via the second inlet. The method also includes determining a first speed of sound inside the first cavity, determining a second speed of sound inside the second cavity, and determining a concentration of the second gas in the second cavity based on the first and second speeds of sound.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: June 8, 2021
    Assignee: Applied Materials, Inc.
    Inventor: Zhiyuan Ye
  • Patent number: 10928361
    Abstract: A fluid density measuring device uses a pipe with a pipe wall that has an inner wall surface with a non-circular cross-section at least in an axial segment of the pipe. Preferably, the inner wall surface comprises one or more protrusions extending inwardly into the pipe and along the axial direction of the pipe. An ultrasound transducer located on the pipe wall is used to generate local motion of the pipe wall with a circumferential direction of motion. Preferably, the ultrasound transducer is located between successive protrusions. An ultrasound receiver located on the pipe wall receives an ultrasound torsion wave generated by the local motion after the torsion wave has traveled through the axial section wherein the inner wall surface has a non-circular cross-section. The fluid density is determined from the propagation speed of the torsion wave.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: February 23, 2021
    Assignee: NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO
    Inventors: Paul Louis Maria Joseph van Neer, Arno Willem Frederik Volker, Teunis Cornelis van den Dool
  • Patent number: 10870070
    Abstract: The present invention is directed to systems and methods for evaluating performance, performing process control, optimization and design of gravity separation process systems that are used to separate immiscible liquid dispersions (e.g., water-in-oil, oil-in-water mixtures) and emulsions for two-phase (liquid-liquid) or three-phase (gas-liquid-liquid) systems. According to one aspect, the design, simulation and control of such systems is performed using computational fluid dynamics (CFD) software that is configured for determining the separation efficiency of separators on the basis of the true geometry and multidimensional flow field and for a distribution of droplet sizes with the influence of the emulsion concentration on the rheology of the oil-in-water or water-in-oil dispersion.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: December 22, 2020
    Assignee: Saudi Arabian Oil Company
    Inventor: Olanrewaju Malcolm Oshinowo
  • Patent number: 10850308
    Abstract: Ultrasonic devices include a transducer having a piezoelectric element therein that may operate as an acoustic signal receiving surface and/or an acoustic signal generating surface. At least one acoustic matching layer is provided on the piezoelectric element. This at least one acoustic matching layer may be configured as a composite of N acoustic matching layers, with a first of the N acoustic matching layers contacting the primary surface of the piezoelectric element. This first acoustic matching layer may have an acoustic impedance equivalent to ZL1, where N is a positive integer greater than zero. In some embodiments of the invention, the magnitude of ZL1 may be defined as: 0.75 ((Zp)N+1(Zg))1/(N+2)?ZL1?1.25 ((Zp)N+1(Zg))1/(N+2), where Zp is the acoustic impedance of the piezoelectric element (e.g., lead zirconate titanate (PZT)) and Zg is the acoustic impedance of a compatible gas.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: December 1, 2020
    Assignee: Sensus Spectrum, LLC
    Inventor: Justin Rorke Buckland
  • Patent number: 10782276
    Abstract: A display assembly which detects gas recirculation or airway occlusion includes an electronic display located within a housing, and an open loop pathway through said housing. Fans along the open loop pathway ingest, circulate, and exhaust ambient air while sensors take measurements. A processor takes data from the sensors and compares it to weather data gathered for the location of the display assembly, as determined by a location detection device. An alert is generated if the measured characteristics of the ambient air are not within a margin of error of the gathered weather conditions. Operations of the display assembly may also be adjusted.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: September 22, 2020
    Assignee: Manufacturing Resources International, Inc.
    Inventors: William Dunn, John Schuch
  • Patent number: 10718735
    Abstract: A gas detection method using a gas detection element obtained by laminating a fixed support, a first electrode (2), a dielectric sensor (3), a second electrode (4), and a gas adsorption film (5), in this order, the method including: a step of applying a first signal resonantly driving the dielectric sensor (3) between electrodes of the first electrode (1) and the second electrode (3), and detecting gas adsorbed on the gas adsorption film based on a change of a resonant frequency of the dielectric sensor; and a step of heating the dielectric sensor (3) by applying a second signal between the electrodes after the detection of gas and desorbing gas adsorbed in the gas adsorption film; a gas detection system capable of performing the method; and a gas desorption method appropriate for applying this gas detection method.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: July 21, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Fumihiko Mochizuki, Takahiro Sano, Koji Takaku, Yasuhiro Aiki
  • Patent number: 10634543
    Abstract: An ultrasonic concentration detector and liquid feature detector, the detector includes a body, a concentration detection tube, and an ultrasonic transducer sheet; the body includes a sealed chamber and an end cap part; an opening at a first end of the concentration detection tube is encapsulated by a reflection plate, and an opening at a second end of the concentration detection tube is encapsulated by the end cap part; the reflection plate faces to an outer surface of the end cap part; and a upper side and a lower side of the concentration detection tube are provided with an upper through hole and a lower through hole respectively. The ultrasonic transducer sheet is disposed in the sealed chamber at a second end of the concentration detection tube, facing to a reflection plate.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: April 28, 2020
    Assignee: DONGGUAN ZHENGYANG ELECTRONIC MECHANICAL CO., LTD.
    Inventor: Yi-Hsin Ku
  • Patent number: 10613056
    Abstract: A heating value derivation device includes a sound velocity derivation unit configured to derive a sound velocity of a gas flowing through a gas flow path, and a heating value derivation unit configured to refer to correspondence relationship information to derive a heating value per unit volume of the gas.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: April 7, 2020
    Assignee: TOKYO GAS CO., Ltd.
    Inventors: Yutaka Kunigo, Masakazu Hishinuma, Kenchi Kobayashi, Hironori Imanishi
  • Patent number: 10605778
    Abstract: A gas sensor comprises at least one transducer and a sensing material (e.g., a metal-organic framework) disposed on the transducer. The sensing material has a temperature-dependent gas sorption behavior. A detector is arranged to detect responses of the transducer to sorption and/or desorption of a target gas in the sensing material and to output transducer measurement signals indicative of the transducer responses. At least one thermal element changes the temperature of the sensing material by heating and/or cooling, and at least one temperature sensor (which may be integral with the thermal element) is arranged to measure a temperature of the sensing material. At least one processor determines the quantity (e.g., concentration, partial pressure, or mass) of the target gas according to the temperature of the sensing material at which the transducer measurement signals satisfy a signal value condition.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: March 31, 2020
    Assignee: MATRIX SENSORS, INC.
    Inventors: David K Britt, Paul R Wilkinson, Steven Yamamoto
  • Patent number: 10571320
    Abstract: A measurement apparatus (10) and to a method provide for the determination of a flow rate (v) and/or of a throughflow (Q) of a fluid (14) flowing in a conduit (12). At least one first ultrasonic transducer (18) and one second ultrasonic transducer (20) permit a flow rate determination via the time of flight of an ultrasound signal. To further improve the determination of a flow rate of a fluid using ultrasonic transducers, in particular at very high flow rates, and to enable the measurement of very high flow rates, a noise-measuring ultrasonic transducer (18, 20; 24) is provided that measures the noise generated in on the flowing past of the fluid (14) in the ultrasonic transducer, and a control and evaluation device (32) is configured to determine the flow rate (v) using the noise measurements.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: February 25, 2020
    Assignee: SICK ENGINEERING GMBH
    Inventors: Ekkehard Riedel, Gerry Schröter, Toralf Dietz
  • Patent number: 10458953
    Abstract: A method and a system for acquiring the natural frequency of a diaphragm, wherein, the method comprises: selecting test frequency points in a closed space, converting an electric signal into an acoustic signal, directing sound into the closed space, and acquiring the acoustic pressure of each test frequency point; adjusting the electric signal until the acoustic pressure of each test frequency point is the same; converting the adjusted electric signal into an acoustic signal; acquiring the displacement generated by the vibration of the diaphragm; and taking the frequency corresponding to the maximum displacement of the diaphragm as the natural frequency of the diaphragm. By adopting the method and system, the natural frequency of the diaphragm is determined by acquiring the maximum displacement of the diaphragm. Moreover, the process of acquiring the natural frequency of the diaphragm is not affected by surrounding environment, and therefore the acquired result is more accurate.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: October 29, 2019
    Assignee: GOERTEK INC.
    Inventors: Dong Qiu, Chao Jiang
  • Patent number: 10382039
    Abstract: A process is disclosed for using microsensors elements embedded in or on articles for detecting target chemical and/or target environmental conditions of interest, including materials hazardous to human health and/or associated with illegal activity. The microsensor elements can be fabricated on a single semiconductor chip, and can be made indetectable to facilitate secure surveillance of potentially illegal activities.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: August 13, 2019
    Inventor: Mark B Johnson
  • Patent number: 10359517
    Abstract: An apparatus includes a reflector, a microphone coupled to the reflector, laser emitters coupled to the reflector, and a laser range finder coupled to the reflector. The laser range finder is configured to output a signal indicative of a distance between the reflector and an object. The apparatus adjusts a position and/or a power level of the laser emitters based on the distance between the reflector and the object. Additionally or alternatively, the apparatus adjusts a position and/or a power level of the laser emitters based on a type of sound waves. Laser beams of light emitted by the laser emitters visually indicate a region in which a source of detected sound waves is located.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: July 23, 2019
    Assignee: Fluke Corporation
    Inventor: Joel Andrew Hartel
  • Patent number: 10352907
    Abstract: A compact, rugged and portable measurement cell design for the determination of sound speed in fluids at temperatures up to 250° C. and pressures up to 3,000 psi is described. Swept Frequency Acoustic Interferometry measurement for liquid sound speed determinations in liquids up to 250° C. is of both fundamental interest, as in the case of basic equations of state, and applied interest, such as for characterizing geothermal or petroleum down hole environments. Representative sound speeds for water, as a function of temperature and pressure, are in agreement with an internationally accepted standard for the sound speed of water.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: July 16, 2019
    Assignee: Los Alamos National Security, LLC
    Inventors: Blake T. Sturtevant, Cristian Pantea, Dipen N. Sinha
  • Patent number: 10331206
    Abstract: A kinesthetic sensor measure angular displacement of body parts of users by measuring a density of substances contained in a conduit of the kinesthetic sensor. For example, the kinesthetic sensor measures the density of substance including in a conduit by transmitting a signal into the conduit and measuring the signal after the signal passes through the conduit and one or more substances included in the conduit. Based on the density of the one or more substances included in the conduit from the measured signal, an angular displacement of a user's body part proximate to the kinesthetic sensor is determined. Kinesthetic sensors may use different architectures such as an open-loop, a closed-loop architecture, or an architecture using blood vessels as conduits. Additionally, kinesthetic sensors can be flexible to conform to physical contours of different body parts.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: June 25, 2019
    Assignee: Facebook Technologies, LLC
    Inventors: Sean Jason Keller, Tristan Thomas Trutna, David R. Perek, Bruce A. Cleary, III, Brian Michael Scally
  • Patent number: 10331954
    Abstract: An electronic device that may collect gas and provide information associated with gas, and a operating method thereof are disclosed. The electronic device may include: a gas sensor that detects gas; a processing unit that analyzes the components of detected gases so as to determine whether abnormal gas is included; and a display unit that displays the analyzed gases on a screen, and displays abnormal gas to be emphasized. A method of operating the electronic device may include: detecting gases through the gas sensor; analyzing the detected gases and analyzing whether abnormal gases exist; displaying the analyzed gases on a screen and displaying abnormal gases to be emphasized.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: June 25, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jihyun Ahn, Hyunkyoung Kim, Daeun Park, Jung-Sik Park, Hyung-Woo Shin
  • Patent number: 10302623
    Abstract: One side of the surfaces of the crystal resonator 4 including an adsorbing film 46 that absorbs a sensing object on an excitation electrode 42A is pressed with the channel forming member 5 using the upper-side cover body 21 to form a channel 57, which runs from one end side to the other end side on one side of surfaces of the crystal resonator 4. A depressed portion 84 is disposed in at least one of: a position opposed to the channel 57 and at a surface on an opposite side of the channel 57 in the channel forming member 5, and a position opposed to the channel 57 and at a surface on the opposite side of the channel 57 in the pressing member with respect to the channel forming member 5.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: May 28, 2019
    Assignee: NIHON DEMPA KOGYO CO., LTD.
    Inventor: Hiroyuki Kukita
  • Patent number: 9970867
    Abstract: The invention relates to a method and to a spectrometer for determining the concentration of a gas component, wherein a light source of the spectrometer is operated as in wavelength modulation spectroscopy (WMS). Thus a determination of the concentration can also take place in accordance with WMS and the measured data can, however, additionally be processed, namely a sorting takes place on the time axis, such that the concentration can be determined using the methods of direct absorption spectroscopy (DAS).
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: May 15, 2018
    Assignee: SICK AG
    Inventors: Thomas Beyer, Julian Edler
  • Patent number: 9945852
    Abstract: A method of determining the presence or absence in a sample of a biomarker, the method comprising: (a) linking an antigen to colloidal gold to provide a gold-antigen species; (b) contacting the gold-antigen species with the sample; (c) adding a diagnosis agent to the sample; and (d) observing the color of the sample.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: April 17, 2018
    Assignee: Arcis Biotechnology Holdings Limited
    Inventors: Christopher David Gwenin, Mark Stephen Baird, Vanessa Valerie Gwenin, Mark Pitts
  • Patent number: 9909968
    Abstract: Disclosed herein are devices for measuring, at one or more time points, one or more properties or changes in properties of a fluid sample. The devices may comprise a chamber defining an internal volume of the device suitable for receiving and retaining the fluid sample; a plurality of layers, the plurality comprising at least a first layer below the chamber, at least a second layer above the chamber, and a substrate layer between the first and second layers, wherein: the substrate layer is linked to at least one suspended element located within the chamber; the suspended element is linked to the substrate layer by at least two compliant structures located within the chamber; and the suspended element is configured to oscillate upon application of an actuating signal to at least one electrically conductive path, which runs across at least two of the compliant structures and the suspended element. Related methods and uses are also disclosed.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: March 6, 2018
    Assignee: ABRAM SCIENTIFIC, INC.
    Inventors: Ramkumar Abhishek, Norimasa Yoshimizu
  • Patent number: 9903779
    Abstract: A pressure sensor system comprises one or more self-calibrating pressure sensors for self-calibrating sensor parameters based on a membrane deflection or a membrane displacement from an electrostatic force and a single reference pressure from an additional sensor. The additional sensor has a greater accuracy level or range than the self-calibrating sensor. Sensor parameters are derived from capacitance measurements and a single pressure measurement, which are utilized for self-calibration to one or more target values.
    Type: Grant
    Filed: February 9, 2015
    Date of Patent: February 27, 2018
    Assignee: Infineon Technologies AG
    Inventor: Dirk Hammerschmidt
  • Patent number: 9897583
    Abstract: An apparatus for detecting a filter contamination of a fuel cell includes: a signal transmitter configured to transmit at least one signal; a signal receiver configured to receive the at least one signal from the signal transmitter; and a resistor unit including a silver compound disposed between the signal transmitter and the signal receiver and having a resistance which varies according to a chemical reaction.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: February 20, 2018
    Assignee: Hyundai Motor Company
    Inventors: Myung Ju Jung, Hyuck Roul Kwon, Sang Hoon Seo, Jeong Hee Park
  • Patent number: 9839374
    Abstract: A load balance and alignment system is provided to assess load forces on the vertebra in conjunction with overall spinal alignment. The system includes a spine instrument having an electronic assembly and a sensorized head. The sensorized head can be inserted between vertebra and report vertebral conditions such as force, pressure, orientation and edge loading. A GUI is therewith provided to show where the spine instrument is positioned relative to vertebral bodies as the instrument is placed in the inter-vertebral space. The system can report optimal prosthetic size and placement in view of the sensed load and location parameters including optional orientation, rotation and insertion angle along a determined insert trajectory.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: December 12, 2017
    Assignee: Orthosensor Inc.
    Inventors: Martin Roche, Marc Boillot, Marc Stein
  • Patent number: 9791403
    Abstract: Gas sensors are provided. The gas sensors include a gas sensing element having metal oxide nanoparticles and a thin-film heating element. Systems that include the gas sensors, as well as methods of using the gas sensors, are also provided. Embodiments of the present disclosure find use in a variety of different applications, including detecting whether an analyte is present in a gaseous sample.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: October 17, 2017
    Assignee: The Regents of the University of California
    Inventors: William Mickelson, Alex Zettl
  • Patent number: 9764333
    Abstract: A method and apparatus are disclosed for exposing particles in a gas in order to cause the charge on the particles to change, the apparatus comprising a chamber having a conductive wall with a gas inlet and a gas outlet. An electrode with an exposed tip is in the chamber, the electrode being held at a different potential from the ground potential. The electrode is connected to a source of voltage sufficient to cause a corona discharge to occur forming ions in the chamber, and creating a region with a high electric field intensity and another region in which the electric field intensity is lower. The inlet and outlet define a gas flow path from the inlet to the outlet such that the gas flow path passes mainly through the region with the lower electric field intensity.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: September 19, 2017
    Assignee: MSP CORPORATION
    Inventors: William Dick, Francisco J. Romay, Benjamin Y. H. Liu
  • Patent number: 9766215
    Abstract: An analytical system and method for detecting volatile organic chemicals in water including a coated SAW detector that provides for improved reduction of moisture at the coating of the SAW detector. A stabilized SAW sensitivity and long lasting calibration is achieved. The analytical system further includes an improved sample vessel and sparger that allow for easy grab sample analysis, while also providing efficient purging of the volatile organic compounds from the water sample. In addition, an improved preconcentrator provides a stabilized sorbent bed.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: September 19, 2017
    Assignee: Parker-Hannifin Corporation
    Inventors: Kazi Z. A. Hassan, William M. Cost, John Arthur Morse, Michael L. Doutt, Glenn Stacey Geis
  • Patent number: 9719812
    Abstract: A housing for a gas sensor module is described herein. The housing can include a first portion and a second portion. The first portion can include at least one wall forming a cavity having a first cavity portion and a second cavity portion. The first portion can also include an inlet tube coupling feature and a distribution channel disposed adjacent to the first cavity portion. The first portion can further include an outlet tube coupling feature and a receiving channel disposed adjacent to the second cavity portion. The second portion can include a tuning fork coupling feature disposed adjacent to the second cavity.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: August 1, 2017
    Assignee: Cooper Technologies Company
    Inventors: Abhijeet Vikram Kshirsagar, Chinmaya Rajiv Dandekar, Amit Barjatya
  • Patent number: 9719904
    Abstract: A density and viscosity sensor for measuring density and viscosity of a fluid, comprises: a housing (4) defining a chamber (8) isolated from the fluid (3), the housing (4) comprising an area defining a membrane (9) separating the chamber (8) from the fluid (3); a resonating element (5) arranged to be immersed in the fluid (3) and mechanically coupled to the membrane (9); and an actuating/detecting element (6) coupled to the resonating element (5), the actuating/detecting element (6) being positioned within the chamber (8) and mechanically coupled to the membrane (9), the actuating/detecting element (6) comprising at least one piezoelectric element (10) comprising two sides (11, 12) substantially parallel to the membrane (9); The membrane (9) has a thickness enabling transfer of mechanical vibration between the actuating/detecting element (6) and the resonating element (5). One side (11) of the piezoelectric element (10) comprises a single conductive area (13).
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: August 1, 2017
    Assignee: OPENFIELD
    Inventor: Eric Donzier
  • Patent number: 9671350
    Abstract: The present disclosure provides methods and mechanisms for measuring small masses attached to a substrate within a microcantilever. Specifically, the disclosure describes the measurement of small particles accumulated at a substrate that cannot be flowed through a microchannel within a microcantilever. A resonance measurement is acquired at a first time. A pair resonance measurements is then acquired at a second point in time—one with the test mass at a first position off or along the microcantilever, the second with the test mass at a second position along the microcantilever. Comparing the resonance frequencies determined for the two test mass positions allows for disambiguation of changes in the mass of the particles from changes in the resonant behavior of the microcantilever itself.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: June 6, 2017
    Assignee: Applied Invention, LLC
    Inventor: W. Daniel Hillis
  • Patent number: 9546941
    Abstract: A method for estimating a specific gravity of a gaseous fuel is described. The gaseous fuel may power an engine and the engine may include a cylinder, a gas valve configured to supply an intake port of the cylinder with the gaseous fuel, a gas rail configured to deliver the gaseous fuel to the gas valve, and a microprocessor adapted to perform the method. The method may comprise establishing a pressure wave in the gas rail by opening and closing the gas valve, wherein the pressure wave travels at the speed of sound in the gaseous fuel. The method may further comprise determining a frequency of the pressure wave in the gas rail, and estimating the specific gravity of the gaseous fuel based on the frequency of the pressure wave.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: January 17, 2017
    Assignee: Caterpillar Inc.
    Inventors: Jason Rasmussen, Brett Zook, Baoyang Deng, Arvind Sivasubramanian
  • Patent number: 9488509
    Abstract: A method for determining an absolute flow rate of a volume or mass flow includes measuring continuous reference values, where each individual reference value is in a direct physical relationship to the flow rate, determining reference value fluctuations, and calculating or mapping the absolute flow rate as a function of a numerical and/or statistic evaluation function of the reference value fluctuations, in particular a fluctuation value generated therefrom. A measurement configuration for implementing the method is also provided.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: November 8, 2016
    Assignee: Systec Controls Mess-und Regeltechnik GmbH
    Inventor: Stefan Baessler
  • Patent number: 9452022
    Abstract: A disposable tool suitable for use in orthopedic alignment that registers points of interest on a first and second bone and transmits location data related to the points of interest to the sensor to assess orthopedic alignment with the points of interest. A display can report and visually display alignment information in real-time.
    Type: Grant
    Filed: December 31, 2010
    Date of Patent: September 27, 2016
    Assignee: ORTHOSENSOR INC
    Inventors: Jason McIntosh, Marc Boillot
  • Patent number: 9452023
    Abstract: At least one embodiment is directed toward one or more disposable devices suitable for use in a surgical field of an operating room. One device includes a sensor communicatively coupled to a wand to register points of interest on a first or second bone of a muscular-skeletal system and transmits location data related to the points of interest to the sensor to assess orthopedic alignment with the points of interest.
    Type: Grant
    Filed: December 31, 2010
    Date of Patent: September 27, 2016
    Assignee: ORTHOSENSOR INC.
    Inventors: Marc Boillot, Jason McIntosh, Marc Stein
  • Patent number: 9404892
    Abstract: A motor vehicle having a gas concentration sensor and a method for measuring gas concentration using the gas concentration sensor the gas concentration sensor having a sound transmitter, a sound receiver and a control device by which a phase shift between the sound signal transmitted by the sound transmitter and a sound signal received by the sound receiver can be controlled to a predefinable phase shift. A change in a composition of a gas mixture can be detected by an analysis unit on the basis of a change in frequency of the sound signal relative to a frequency of a reference sound signal.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: August 2, 2016
    Assignee: Continental Automotive GmbH
    Inventors: Tobias Bernat, Armin Hollstein
  • Patent number: 9354220
    Abstract: A fuel quality sensor is provided for use with an engine system. The fuel quality sensor may have a single sensing element configured to sense a thermodynamic property of an unknown mixture of gaseous fuel, and a heating element configured to increase a temperature of the unknown mixture of gaseous fuel at the single sensing element to multiple different temperature levels. The fuel quality sensor may also include a microprocessor configured to calculate a fuel parameter of the unknown mixture of gaseous fuel as a function of only the thermodynamic property sensed at the multiple different temperature levels.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: May 31, 2016
    Assignee: Caterpillar Inc.
    Inventor: Douglas Alexander Rebinsky
  • Patent number: 9289569
    Abstract: A breathing apparatus has a first delivery device for adding a volume of a substance to a gas flow, the delivery device having a gas inlet and a gas outlet. A unit monitors a presence of the substance in a gas downstream the delivery device using a first sensor unit at the gas outlet that provides a first measurement value based on an acoustic property of a gas in a first conduit. A second sensor unit at the gas inlet provides a second measurement value based on an acoustic property of a gas present in the second conduit. A control unit determines the presence of the substance based on the first measurement value or based on a comparison of the first measurement value and the second measurement value.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: March 22, 2016
    Assignee: Maquet Critical Care AB
    Inventors: Erik Cardelius, Magnus Hallbäck, Pär Emtell, Lars Wallen
  • Patent number: 9250218
    Abstract: An apparatus for detecting a presence of at least one analyte in a gas sample. The apparatus comprises a pump for drawing a gas sample from an ambient air, a passage having first and second ends, a chamber connected to the first end and containing a concentrating element for collecting at least one analyte from the gas sample, a chromatographic separator connected to a second end of the passage, and a gas source for streaming a carrier gas via the chamber to transfer the at least one analyte toward at least one chemical detector, via the chromatographic separator, in a first direction. The pump draws the gas sample via the chamber in a second direction and the first and second directions are substantially opposing to one another.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: February 2, 2016
    Assignee: S.T.I. Security Technology Integration Ltd.
    Inventors: Yuval Ovadia, Amos Linenberg, Yorai Linenberg
  • Patent number: 9217663
    Abstract: A sound velocity sensor is defined by a hermetic multi-chambered enclosure for containing flowing gases and mixtures of gases. The contained flowing gases are acoustically excited and the acoustic energy is measured over a fixed distance between a first sending end of the enclosure and a receiving end. The speed of sound of the gases are determined by comparing the energy transmitted through the flowing gases at various frequencies so as to precisely determine the resonant frequency of the gases flowing through the enclosure. In accordance with the present design, the chambers of the enclosure include internal transition shapes therebetween for optimizing the transmission of acoustic energy through the flowing gases and also enhancing one or more additional resonant modes at higher useful frequencies. The transition shapes used in connection with the sensor can be at least one of parabolic, hyperbolic, linear and exponential in nature.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: December 22, 2015
    Assignee: Inficon, Inc.
    Inventor: Abdul Wajid
  • Patent number: 9151681
    Abstract: The present disclosure is directed to a temperature detector for detecting a temperature of a component. The temperature detector may receive a first signal indicative of the temperature of the component, with the first signal being received from a first type of temperature sensor. The temperature detector may further receive a second signal indicative of the temperature of the component, with the second signal being received from a second type of temperature sensor different from the first type of temperature sensor. The temperature detector may combine the first and second signals to generate an output indicative of the temperature of the component.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: October 6, 2015
    Assignee: Progress Rail Services Corporation
    Inventors: Donald J. Arndt, Mark J. Bartonek
  • Patent number: 9140659
    Abstract: The described sensor allows determination of the concentration of a gas in a two-component mixture at variable pressure by measuring the diffusivity and the thermal conductivity. The sensor is provided to alternately heat the membrane (12) of a thermally conductive cell (1) and allow it to cool such that the temperature TM of the membrane passes from a first stable value to a second stable value and vice versa via a transient mode. The cell produces a signal representative of the temperature TM of the membrane and the sensor extracts from the signal a first and a second parameter that respectively relate to said first stable value and said transient mode of the signal. A value of the concentration of said gas and of the pressure of said two-mixture is calculated from these two parameters.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: September 22, 2015
    Assignee: Belenos Clean Power Holding AG
    Inventors: Yves De Coulon, Vincent Demarne
  • Patent number: 9089360
    Abstract: Various embodiments are directed to an apparatus and method of driving an end effector coupled to an ultrasonic drive system of a surgical instrument. The method comprises generating at least one electrical signal. The at least one electrical signal is monitored against a first set of logic conditions.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: July 28, 2015
    Assignee: Ethicon Endo-Surgery, Inc.
    Inventors: Jeffrey D. Messerly, Eitan T. Wiener, Brian T. Noyes, Jeffrey L. Aldridge, James R. Giordano, Daniel J. Abbott, Matthew C. Miller, Nathan J. Price, Daniel W. Price
  • Publication number: 20150128682
    Abstract: There is provided a sensor assembly (200) for measuring physical properties of a gas under pressure within a pressure vessel (100). The sensor assembly (200) comprises a housing and a piezoelectric oscillator (202) for immersion in the gas within the pressure vessel (100). The sensor assembly (200) is arranged, when immersed in said gas, to measure the density of the gas within the pressure vessel (100). The housing comprises a first chamber and a second chamber. The first chamber is in fluid communication with the second chamber and substantially encloses said piezoelectric oscillator. The second chamber is in fluid communication with the interior of the pressure vessel. By providing such an arrangement, the true contents (i.e. mass) of fluid in a pressure vessel such as a cylinder can be measured directly and accurately.
    Type: Application
    Filed: May 23, 2013
    Publication date: May 14, 2015
    Inventors: Neil Alexander Downie, Clayton Mathew Ludik
  • Patent number: 9016131
    Abstract: At least two sound pressure sensors in parallel with each other are inserted into a liquid to which waves are applied. The sound pressure sensors have a bar-like shape and the same sensitivity. In a first synchronized state waves detected by the sound pressure sensors are synchronized with each other. The sound pressure sensors are moved relative to each other in a longitudinal direction, to break the first synchronized state and then establish a second synchronized state in which the waves detected by the sound pressure sensors are again synchronized with each other. A wavelength of the detected waves is determined according to a quantity of the relative movement of the sound pressure sensors between the first and second synchronized states. The detection of a wavelength of waves applied to the liquid is usable to evaluate and control a total amount of dissolved gases in the liquid.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: April 28, 2015
    Assignee: NHK Spring Co., Ltd.
    Inventor: Shuichi Akutsu