Patents Assigned to Endress + Hauser Flowtec AG
  • Publication number: 20180245958
    Abstract: The invention relates to an ultrasonic transducer comprising an acoustic transformer, wherein the acoustic transformer has a transformer body having a hollow space, and there lies between the hollow space and the medium a membrane, whose center oscillates freely. Furthermore, the invention relates to methods for manufacturing such an acoustic transformer.
    Type: Application
    Filed: July 26, 2016
    Publication date: August 30, 2018
    Applicant: Endress+Hauser Flowtec AG
    Inventors: Michal Bezdek, Pierre Ueberschlag, Andreas Berger, Frank Wandeler
  • Patent number: 10052627
    Abstract: A measuring arrangement comprising: a support element having a longitudinal axis, wherein a sensor for ascertaining a process variable of a gaseous or liquid fluid is arranged on the support element; and the sensor, wherein the sensor has a fluid duct, which extends within the sensor. The support element has a fluid duct, and for mechanical connection of the fluid duct with the fluid duct of the sensor a bonding layer, which extends over a portion of a surface of the support element and over a portion of a surface of the sensor. The bonding layer comprises at least one fluorinated polymer. The support element has for connection of the fluid duct of the support element with the fluid duct of the sensor, in each case, at least one connection element, which protrude from the support element perpendicularly to the longitudinal axis and which protrude inwardly into the fluid duct of the sensor.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: August 21, 2018
    Assignee: ENDRESS + HAUSER FLOWTEC AG
    Inventors: Christof Huber, Hagen Feth, Frank Steinhoff, Holger Reinecke
  • Patent number: 10001392
    Abstract: A magneto-inductive flow measuring device including a coil arrangement and a circuit for controlling a supply voltage of the coil arrangement. The circuit is designed to provide the supply voltage of the coil arrangement with a voltage curve sequenced as follows: A) the voltage rises from a starting voltage I up to an overvoltage II; B) in given cases, the voltage is held at the overvoltage II; C) the voltage falls from the overvoltage II down to a holding voltage V. The circuit controls the fall of the voltage from the overvoltage down to the holding voltage by tuning the voltage to at least two or more predetermined, intermediate, desired values III, IV.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: June 19, 2018
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Simon Stingelin, Thomas Budmiger
  • Patent number: 9989391
    Abstract: The coil (1) comprises a platform (11) having a passageway (11A; 11A) extending from an end (11+) of the platform formed by a first end face to an end (11#) of the platform distal to the end (11+) and formed by a second end face, and a coil support (12) having a passageway (12A) extending from an end (12+) of the coil support formed by a first end face to an end (12#) of the coil support distal to the first end and formed by a second end face. The coil support (12) is so arranged relative to the platform (11) that the second end face of the coil support faces the platform and an intermediate space (20) is formed between the second end face of the coil support and the first end face of the platform, and that the passageway (12A) of the coil support aligns with the passageway (11A) of the platform.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: June 5, 2018
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Ennio Bitto, Gerhard Eckert
  • Patent number: 9970808
    Abstract: A method for ascertaining a compensated flow and/or a compensated flow velocity, wherein the compensation of a flow related measurement error occurs in the context of a flow measurement with a two path measuring of an ultrasonic, flow measuring device, comprising: an arrangement of at least two ultrasonic transducers pairs on a tube, or pipe, wherein the ultrasonic transducers are in a 180°, two path, one traverse, or a 90°, two path, two traverse arrangement, by means of an evaluation unit of a flow measuring device and/or a computer, characterized by steps as follows: a) feeding information relative to the type of a flow influencing, tube, or pipe, element into the evaluation unit and/or into the computer; b) feeding information relative to distance (xa-xd) of the arrangement of the ultrasonic transducer pairs from the flow influencing, tube, or pipe, element into the evaluation unit and/or into the computer; c) compensating a measurement error by means of a correction factor kD as a function of information
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: May 15, 2018
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Thomas Frohlich, Oliver Berberig, Beat Kissling, Quirin Muller, Klaus Bussinger
  • Patent number: 9970796
    Abstract: A method for monitoring the operating state of a first ultrasonic transducer in an ultrasonic, flow measuring device having at least one measuring tube and at least two ultrasonic transducers, including steps as follows: a) providing a first value or a plurality of first values, which relate to the geometric arrangement of the first ultrasonic transducer in the measuring tube and/or to the geometric arrangement of the first ultrasonic transducer relative to a second ultrasonic transducer; b) ascertaining a second value or a plurality of second values for a flow velocity of a medium located in the measuring tube c) providing a third value and/or a plurality of third values for temperature and/or pressure of the medium located in the measuring tube; d) simulating a desired value of a signal strength taking into consideration the first, second and/or third values; and e) comparing the simulated desired value of a signal strength with an ascertained real value of the signal strength.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: May 15, 2018
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Michal Bezdek, Pierre Ueberschlag
  • Patent number: 9935405
    Abstract: The terminal block (10) serves for electrically connecting a connection line having at least two conductors (L1, L2) and extending externally of an electronics housing (H). The terminal block comprises a platform (100) composed at least partially of an electrically insulating, synthetic material, especially a synthetic material having a dielectric strength sufficient to meet European standard EN 60947-1, a connection terminal (TI) arranged on a first side of the platform forming a first connection side of the terminal block and serving for connection of a conductor (L1) of the connection line as well as at least one connection terminal (T2) arranged on the first side of the platform, laterally spaced from the connection terminal (T1) for connection of a conductor (L2) of the connection line. Additionally, the terminal block comprises a connection contactor (J1) arranged on a second side of the platform forming a second connection side of the terminal block, e.g.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: April 3, 2018
    Assignee: ENDRESS + HAUSER FLOWTEC AG
    Inventors: Antoine Simon, Roland Roth, Frantz Bindler
  • Patent number: 9897473
    Abstract: The measuring transducer comprises four measuring tubes (181, 182, 183, 184) as well as two oscillation exciters and (51, 52). The oscillation exciter (51) includes a coil (511) secured to the measuring tube (181) as well as a permanent magnet (512) secured to the measuring tube (182) and movable relative to the coil (511) and the oscillation exciter (52) includes a coil (521) secured to the measuring tube (183) as well as a permanent magnet (522) secured to the measuring tube (184) and movable relative to the coil (521). In the case of the measuring transducer of the invention, the coils (511, 521) are connected electrically in parallel with one another.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: February 20, 2018
    Assignee: ENDRESS + HAUSER FLOWTEC AG
    Inventors: Marcel Braun, Robert Lalla, Christian Matt
  • Patent number: 9897471
    Abstract: A coupling element for an ultrasonic transducer, which comprises a first recess provided for the arrangement of a piezoelectric element and comprising a terminal base surface in which an ultrasound signal generated by the piezoelectric element can be fed into the coupling element. The coupling element comprising inside the first recess one or a plurality of stops, each of which comprises at least one stop surface which extends along a plane, the plane extending parallel to the base surface of the first recess, and there being defined between this plane and the base surface a space for accommodating material for an acoustic adaptation layer. The invention further concerns an ultrasonic transducer and an ultrasonic flow meter.
    Type: Grant
    Filed: April 11, 2014
    Date of Patent: February 20, 2018
    Assignee: ENDRESS + HAUSER FLOWTEC AG
    Inventors: Achim Wiest, Andreas Berger, Sascha Grunwald
  • Patent number: 9891181
    Abstract: A measurement device, in particular an electromagnetic flow meter, for measuring a flow, of a flowing fluid, comprising a measurement tube having an outer tube and a liner lining an inside of the outer tube, and a measurement structure for measuring a property of a fluid flowing through the lined measurement tube during measurement operation, capable of detecting abrasion of the liner.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: February 13, 2018
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Jason Pennington, Robert Head
  • Patent number: 9885593
    Abstract: A method for verifying the reliability of ascertained measurement data of an ultrasonic, flow measurement made according to the travel-time difference method, wherein an ultrasonic flow measuring device having at least two ultrasonic transducers is used to transmit and receive ultrasonic signals inclined in or counter to a flow direction of a measured medium. A first ultrasound disturbance signal is registered within a first time window before receiving a first ultrasound wanted signal, and a second ultrasound disturbance signal is registered within a second time window before receiving a second ultrasound wanted signal. A quality criterion is ascertained for evaluating the measurement uncertainty of a measured value proportional to the travel-time difference ascertained from the first and second ultrasound wanted signals, wherein the ascertaining of the quality criterion includes a difference forming between the first and second disturbance signals.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: February 6, 2018
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Frank Wandeler, Aurele Fleury
  • Publication number: 20170343396
    Abstract: A method for defect detection for a signal line between an electrode and a measuring- and/or evaluation unit of a magneto-inductive flow measuring device having at least one measuring- and/or evaluation unit, as well as a measuring tube with at least two measuring electrodes and a third electrode, comprising steps as follows: A) ascertaining a ratio of at least two measured electrical impedances between the measuring electrodes and/or between at least one of the two measuring electrodes and the third electrode; B) comparing the impedance ratio with a desired value range and C) outputting a defect report, when the impedance ratio exceeds or subceeds the desired value range, and a magneto-inductive flow measuring device.
    Type: Application
    Filed: December 10, 2015
    Publication date: November 30, 2017
    Applicant: Endress + Hauser Flowtec AG
    Inventors: Andre Spahlinger, Markus Rufenacht, Christophe Boeglin
  • Publication number: 20170343404
    Abstract: A measuring transducer for registering and/or monitoring at least one process variable of a flowable medium guided in a pipeline, which at least includes: a housing module, which is mechanically coupled with the pipeline via an inlet end and an outlet end, and a sensor module having at least one measuring tube held oscillatably at least partially in the housing module and caused, at least at times, to oscillate. The at least one component of the housing module and/or of the sensor module is manufactured by means of a generative method and method for manufacturing at least one component of a measuring transducer, which method includes manufacturing the at least one component by means of a primary forming process, especially by means of a layered applying and/or melting-on of a powder, especially a metal powder, based on a digital data set, which gives at least the shape and/or the material and/or the structure of the at least one component.
    Type: Application
    Filed: November 9, 2015
    Publication date: November 30, 2017
    Applicant: Endress + Hauser Flowtec AG
    Inventors: Martin Josef Anklin, Gerhard Eckert, Christian Schutze, Ennio Bitto, Christof Huber, Claude Hollinger, Alfred Rieder, Michael Kirst
  • Patent number: 9782798
    Abstract: The measuring tube of the in-line measuring device is formed by means of a support tube and a liner internally lining the support tube. The liner adheres to the support tube, with interposition of a mediating primer. Both the primer and the liner are composed, at least in part, of polyurethane. Especially, both the polyurethane of the liner and also the polyurethane of the primer are suitable for drinking water applications, so that the in-line measuring device itself is also suited for measuring drinking water.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: October 10, 2017
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Thomas Sulzer, Johannes Ruchel, Alexander Stuenzi
  • Patent number: 9739652
    Abstract: A sensor of a thermal flow measuring device, as well as the flow measuring device itself. The sensor comprises a sensor platform, which bears at least one measuring sensor element and a heated sensor element. Each of the at least two sensor elements is surrounded by a metal sleeve, which protrudes from the sensor platform. The sensor has a plate-shaped element, which defines a plane, whose axis extends parallel to the axis of at least one of the metal sleeves, wherein the plane is spaced from the sensor platform in the axial direction of the metal sleeve. The metal sleeve with the heated sensor element has a terminal end face and the plate-shaped element is provided along the end face of the metal sleeve with the heated sensor element for flow guidance.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: August 22, 2017
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Axel Pfau, Achim Wiest, Martin Barth
  • Patent number: 9733110
    Abstract: A housing equipped with a viewing window. The housing includes: a housing segment which adjoins a radially inwardly extending shoulder, which terminally externally surrounds a housing opening conically tapering from the housing interior toward the housing exterior. Flushly mounted in the opening, a disk shaped viewing window pane, which has bordering on its outwardly facing surface an external lateral surface conically tapering form the housing interior toward the housing exterior. A one-piece, shaped seal, which has a first portion, which externally completely surrounds the viewing window pane, and which has a second portion, which lies against an outer edge of a surface of the viewing window pane facing inwards into the housing. A support ring secured in the housing segment clamps the viewing window pane in the housing segment.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: August 15, 2017
    Assignee: Endress + Hauser Flowtec AG
    Inventor: Thierry Moser
  • Patent number: 9719819
    Abstract: A vortex flow transducer for measuring the flow velocity of a fluid flowing in a measuring tube as well as to a vortex flow sensor for the vortex flow transducer. In such case, the vortex flow sensor includes a housing having a central axis and a connecting section, on which a shoulder is embodied, which has a bearing area. In a plane of the shoulder a membrane is arranged, whose edge is positioned over the bearing area and is axially spaced therefrom. The vortex flow sensor includes, furthermore, a flange shaped support system having a radial edge section and a cylindrical axial section, wherein the radial edge section lies with its surface against the shoulder of the platform and the cylindrical axial section extends parallel to the central axis, so that the membrane is supported against the support system upon application of a predetermined pressure on the membrane.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: August 1, 2017
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Andreas Strub, Natalie Witkowski, Dominique Wiederkehr, Sascha Kamber
  • Patent number: 9696191
    Abstract: A thermal, flow measuring device for determining and/or monitoring a mass flow of a measured medium through a measuring tube, comprising a sensor having a first heatable resistance thermometer and at least a second heatable resistance thermometer, wherein the sensor has a longitudinal axis and an end face, which is divided into at least two adjoining segments, wherein a surface normal vector of at least a first segment forms with the longitudinal axis of the sensor an angle of at least 5°; and use of a thermal, flow measuring device.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: July 4, 2017
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Axel Pfau, Panagiotis Papathanasiou, Stephan Gaberthuel, Tobias Baur, Hanno Schultheis
  • Patent number: 9689728
    Abstract: The invention concerns an ultrasonic transducer, comprising a coupling element which has a first recess, the first recess being provided for the arrangement of a piezoelectric element which feeds an ultrasound signal into the coupling element, and there being disposed between the piezoelectric element and the coupling element an intermediate layer which comprises a metal disc, the metal disc comprising retaining elements (a) each with a first segment lying on the same plane as the metal disc and projecting radially from the perimeter of the metal disc and (b) each having a second segment which adjoins the first segment, projects from the plane of the metal plate and is connected to the first segment.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: June 27, 2017
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Achim Wiest, Andreas Berger
  • Patent number: D827469
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: September 4, 2018
    Assignee: ENDRESS + HAUSER FLOWTEC AG
    Inventor: Thierry Moser