Patents Assigned to Endress + Hauser Flowtec AG
  • 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: 9689727
    Abstract: An ultrasonic flow meter comprising: a measurement pipe, which has a measurement pipe wall, at least in some parts a basic shape having a rotationally symmetric or polygonal cross-section, and a straight measurement pipe axis; a transmitter for transmitting an acoustic signal on a first signal path; and a receiver for receiving the acoustic signal on the first signal path. The measurement pipe has a plurality of reflection surfaces, by which the acoustic signal on the first signal path is reflected multiple times, and wherein the reflection surfaces are integrally formed from the measurement pipe wall, the reflection surfaces for reflecting the acoustic signal being designed in such a way that one or more of the reflection surfaces at least partially protrude into the basic shape of the measurement pipe and one or more of the reflection surfaces project outward at least from the basic shape of the measurement pipe.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: June 27, 2017
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Beat Kissling, Quirin Muller, Sascha Grunwald, Fabian Steiner, Wolfgang Brobeil
  • Patent number: 9683879
    Abstract: A pole shoe, especially for use with a system for magneto inductive flow measurement. The pole shoe is provided with at least one cable guiding system for guiding a cable through the pole shoe. A mounting clip for guiding cable in a pole shoe wherein the mounting clip includes at least one guiding opening for guiding at least one cable and at least one securement region for securing the mounting clip to the pole shoe. A magneto inductive flow measuring system, comprising at least two pole shoes and at least one coil core, wherein at least one of the pole shoes is provided with at least one cable guiding system for guiding a cable through the pole shoe.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: June 20, 2017
    Assignee: Endress + Hauser Flowtec AG
    Inventor: Oliver Graf
  • Patent number: 9671266
    Abstract: A method for determining mass flow of a gas by means of a mass flow meter, which has a first and a second temperature sensor, which can be flowed around by the gas. The first temperature sensor is heated with a heating power Q, wherein the mass flow of the medium is determined by means of a power coefficient PC=Q/?T as a function of a heating power Q and a temperature difference ?Tm=T1?T2 between the measured values of the temperature sensor. A corrected power coefficient PCcorr is determined, wherein at least one correction occurs by means of at least one recovery correction term Ki, wherein the recovery correction term Ki has the form Ki=?x·u2/(2·cp), wherein u is the flow velocity and cp the heat capacity of the medium, ?x is an element of the set {?1; ?2; ?12}, ?1:=e1?cr, ?2:=e2?cr and ?12:=e1?e2=?1??2, e1 and e2 are the recovery factors of the first, respectively second, temperature sensors, and wherein cr is a constant reference value, for which holds cr?1, especially cr=1.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: June 6, 2017
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Anastasios Badarlis, Tobias Baur, Axel Pfau, Hanno Schultheis
  • Patent number: 9658088
    Abstract: A flow measuring device having a line section serving for guiding a flowable medium, wherein the line section is formed at least partially by a cavity in a circuit board.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: May 23, 2017
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Thomas Sulzer, Patrick Oudoire
  • Publication number: 20170132997
    Abstract: An ultrasonic transducer comprising a coupling element and a piezo element, wherein a metal disk is arranged between the coupling element and the piezo element, wherein the metal disk is connected with the piezo element or with the coupling element by means of an adhesive layer, characterized in that the adhesive layer is producible, at least in certain regions, by means of a photochemically curable adhesive.
    Type: Application
    Filed: February 23, 2015
    Publication date: May 11, 2017
    Applicant: Endress+Hauser Flowtec AG
    Inventors: Achim Wiest, Andreas Berger
  • Patent number: 9631966
    Abstract: A fill level monitoring system comprising at least one electrode for monitoring the fill level of a medium flowing in a pipe or tube, wherein the electrode has an integrated temperature sensor, wherein the fill level monitoring system further comprises an evaluation unit, which is embodied for monitoring the degree of filling of the pipe or tube and transmits a warning signal when the degree of filling subceeds a limit value, preferably a degree of filling of less than 80% of the tube diameter; and a flow measuring device having this fill level monitoring system.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: April 25, 2017
    Assignee: ENDRESS + HAUSER FLOWTEC AG
    Inventors: Frank Voigt, Werner Wohlgemuth, Gunther Bahr
  • Patent number: 9625294
    Abstract: In a flow measuring device having a measuring tube with a sensor arrangement and an evaluation unit for ascertaining a flow, a sensor arranged on or in a measuring tube having a tube wall of a metal support material and a first ply of a corrosion resistant material that protects the metal support material from corrosive measured media and is placed on an inner surface of the tube wall; or a tube wall of a corrosion resistant material, wherein in the measuring tube on the side of the first ply facing the medium or on the side of the measuring tube wall of the corrosion resistant, synthetic material facing the medium a ply or second ply is arranged for reducing mechanical loading, of the synthetic material by the measured medium, wherein the ply or second ply has a greater hardness than the first ply or the tube wall.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: April 18, 2017
    Assignee: Endress + Hauser Flowtec AG
    Inventor: Michael Schoohf
  • Publication number: 20170074730
    Abstract: A transducer apparatus comprises a transducer housing, a tube as well as a temperature sensor. The tube is arranged within a cavity of the transducer housing, in such a manner that an intermediate space is formed between a wall of the transducer housing facing the cavity inner surface and an outer surface of a wall of the tube facing the cavity. The tube is adapted to guide a fluid in its lumen, in such a manner that an inner surface of the wall of the tube facing the lumen is contacted by fluid guided in the lumen.
    Type: Application
    Filed: February 23, 2015
    Publication date: March 16, 2017
    Applicant: Endress + Hauser Flowtec AG
    Inventors: Alfred Rieder, Hao Zhu, Michael Wiesmann
  • Patent number: 9596795
    Abstract: A method for the manufacture of a sensor for a thermal flow measuring device, wherein the sensor has at least one housing with a first open end and a second open end. The first open end is securable in a sensor holder; and at least one resistance thermometer is inserted into the housing through the second open end of the housing and the second open end of the housing is closed. Cables for electrical contacting of the resistance thermometer lead out of the housing through the first open end of the housing.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: March 14, 2017
    Assignee: Endress + Hauser Flowtec AG
    Inventor: Axel Pfau
  • Patent number: 9593973
    Abstract: The measuring transducer comprises a measuring tube having an inlet-side tube end and an outlet-side tube end, a tube wall having a predetermined wall thickness and a lumen surrounded by the tube wall and extending between the first and second tube end, a support element, which with a support end is mechanically connected with the tube end and with a support end is mechanically connected with the tube end, as well as, laterally spaced from the measuring tube, a support element, which with a support end is mechanically connected with the support end and with a support end is mechanically connected with the support end. The measuring tube of the measuring transducer is adapted to guide a flowing medium in its lumen and during that to be caused to oscillate about a static resting position for producing Coriolis forces. The measuring transducer comprises an oscillation exciter as well as at least one oscillation sensor.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: March 14, 2017
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Christof Huber, Alfred Rieder, Christian Schutze, Ennio Bitto, Martin Josef Anklin
  • Patent number: 9574926
    Abstract: A measuring tube for a flow measuring device, wherein the measuring tube has a measuring tube axis A and a measuring tube wall. The measuring tube has a branch with a branch axis B and a wall of the branch, wherein the wall of the branch is arranged on the measuring tube wall, and the wall of the branch is connected with the measuring tube wall by a welded joint. In the transitional region between the wall of the branch and the measuring tube wall there is a specially embodied thickening of the material, which is either part of the wall of the branch or part of the measuring tube wall.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: February 21, 2017
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Oliver Berberig, Andreas Berger
  • Patent number: 9568346
    Abstract: An assembly procedure for an electrode anchor, and a magnetic-induction flow meter, particularly for high pressure applications with medium pressures above 5.1 MPa (51 bar), having a measuring tube on which a multi-part electrode anchor for securing a measuring electrode is arranged. Included are: a) a coupling fitting, which is materially bonded to the measuring tube wherein the coupling fitting comprises a groove, or forms a groove together with the measuring tube; and b) a coupling insert for guiding and/or securing the measuring electrode the coupling insert being connected to the coupling fitting by way of a coupling. The coupling insert comprises anchoring wings which engage in the groove by a partial rotation and thereby effect the coupling.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: February 14, 2017
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Severin Ramseyer, Matthias Achermann, Hans-Ruedi Zimmermann
  • Patent number: 9554483
    Abstract: An electronic device having a housing for accommodating electronic components, preferably electronic components forming a process transmitter. The housing has two chambers, in which electronic components and user interfaces and/or connection elements for cable are arranged. The electronic components are arranged in a first chamber. In the case of a process transmitter, which is simple to maintain, electronic components are arranged exclusively in the first chamber, while user interfaces of the electronic components and/or connection elements for cable are positioned exclusively in the second chamber.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: January 24, 2017
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Nikolai Fink, Thierry Moser, Gernot Engstler, Ole Koudal
  • Patent number: 9546890
    Abstract: A measuring transducer comprises a measuring tube having an inlet-side tube end and an outlet-side tube end, a tube wall having a predetermined wall thickness and a lumen surrounded by the tube wall and extending between the first and second tube end, a support element, which with a support end is mechanically connected with the tube end and with a support end is mechanically connected with the tube end, as well as, laterally spaced from the measuring tube, a support element, which with a support end is mechanically coupled with the support end and with a support end is mechanically coupled with the support end. The measuring tube is adapted to guide a flowing medium in its lumen and caused to oscillate about a static resting position for producing Coriolis forces. An oscillation exciter as well as at least one oscillation sensor.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: January 17, 2017
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Christof Huber, Alfred Rieder, Christian Schutze, Ennio Bitto, Martin Josef Anklin
  • Patent number: 9541428
    Abstract: An interface between a sensor unit and an explosion resistant housing, wherein arranged in the explosion resistant housing is a measurement amplifier. In the interface, which is simply manufacturable and, despite that, meets the requirements of explosion protection, the measurement amplifier is arranged on a plug unit formed in the sensor unit and preferably protruding inwardly into the explosion resistant housing.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: January 10, 2017
    Assignee: ENDRESS + HAUSER FLOWTEC AG
    Inventors: Nikolai Fink, Markus Beissert, Frank Bonschab, Sr., Bjorn Larsson, Bruno Worreth