Patents Assigned to Flowtec AG
  • Patent number: 8935843
    Abstract: A thermal, flow measuring device for determining and/or monitoring the flow of a measured medium through a measuring tube. The thermal, flow measuring device includes: a first pin-shaped shell and at least a second pin-shaped shell; a first resistance thermometer and at least a second resistance thermometer. At least the first resistance thermometer is embodied so as to be heatable, wherein the resistance thermometers, in each case, have a first surface, and at least a second surface, which lies opposite the first surface. The first pin-shaped shell surrounds the first resistance thermometer, and the second pin-shaped shell surrounds the second resistance thermometer. The pin-shaped shells are fillable with a fill material. In each case, at least one spacer is placeable between the pin-shaped shell and the first surface of the resistance thermometer, and the second surface of the resistance thermometer is at least partially covered with fill material.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: January 20, 2015
    Assignee: Endress + Hauser FLowtec AG
    Inventors: Dirk Boguhn, Jiri Holoubek, Axel Pfau, Oliver Popp, Jiri Polak
  • Patent number: 8931346
    Abstract: A measuring transducer having exactly four flow openings, and an outlet-side housing end formed by means of an outlet-side flow divider having exactly four flow openings. A tube arrangement has exactly four curved or bent measuring tubes connected to the flow dividers for guiding flowing medium along flow paths connected in parallel. Each of the four measuring tubes opens with an inlet-side measuring tube end into one of the flow openings of the inlet-side flow divider, and with an outlet-side measuring tube end into one of the flow openings of the outlet-side flow divider. A first coupling element for adjusting eigenfrequencies of natural oscillation modes of the tube arrangement. An electro-mechanical exciter mechanism of the measuring transducer serves for producing and/or maintaining mechanical oscillations of the four measuring tubes.
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: January 13, 2015
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Alfred Rieder, Christof Huber, Ennio Bitto, Christian Schutze, Marcel Braun
  • Patent number: 8924165
    Abstract: The measuring system has a measuring transducer which produces primary signals transmitter electronics for activating the measuring transducer and for evaluating primary signals. The measuring transducer includes at least one measuring tube; at least one electro-mechanical, oscillation exciter, a first oscillation sensor. The transmitter electronics, in turn, delivers at least one driver signal for the oscillation exciter for effecting vibrations of the at least one measuring tube and generates, by means of the first primary signal and by means of the second primary signal, as well as with application of a Reynolds number, measured value representing a Reynolds number, Re, for medium flowing in the measuring transducer, a pressure difference, measured value, which represents a pressure difference occurring between two predetermined reference points in the flowing medium.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: December 30, 2014
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Vivek Kumar, Martin Anklin
  • Patent number: 8915146
    Abstract: A magneto-inductive flow measuring device having a measuring transducer, which includes a measuring tube a magnet system for producing a magnetic field, and at least one electrode inserted into a bore of the measuring tube for registering an electrical voltage. A securement device is provided, which serves for securing the electrode on the measuring tube. The securement device is at least partially composed of plastic, and is connected with the measuring tube by a plastics welding technology.
    Type: Grant
    Filed: July 27, 2009
    Date of Patent: December 23, 2014
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Roger Kerrom, Beat Tschudin, Raphel Hess
  • Patent number: 8904878
    Abstract: A measuring tube, a measuring system and a method for determining and/or monitoring flow through a measuring tube, comprising a measuring tube, on which ultrasonic transducers are releasably placeable. The ultrasonic transducers transmit and/or receive ultrasonic signals, which pass through the measuring tube approximately coaxially to the measuring tube axis. At least one ultrasonic transducer comprises at least one tiltable clamp which can be locked into at least one elevation or depression located on the measuring tube.
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: December 9, 2014
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Achim Wiest, Michal Bezdek
  • Patent number: 8904861
    Abstract: A method for the manufacture of a measuring device, and a measuring device for registering at least one measured value of at least one process variable, wherein the measuring device includes a measuring tube, which has at least one necked out portion, on which at least one measuring transducer is arranged, wherein the measuring tube together with the necked out portion is monolithic, and wherein the necked out portion is manufacturable from the measuring tube at least partially by a deformation method.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: December 9, 2014
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Andreas Berger, Michal Bezdek, Arno Lang
  • Publication number: 20140352454
    Abstract: The measuring transducer comprises: a transducer housing (71), of which an inlet-side, housing end is formed by means of an inlet-side, flow divider (201) having four flow openings (201A, 201B, 201C, 201D) and an outlet-side, housing end is formed by means of an outlet-side, flow divider (202) having four flow openings (202A, 202B, 202C, 202D); as well as a tube arrangement having four, curved, or bent, measuring tubes (181, 182, 183, 184) connected to the flow dividers (201, 202) for guiding flowing medium along flow paths connected in parallel, wherein each of the four measuring tubes opens with an inlet-side, measuring tube end into one of the flow openings of the flow divider (201) and with an outlet-side, measuring tube end into one the flow openings of the flow divider (202). The transducer further comprises an exciter mechanism for exciting oscillations of said measuring tube.
    Type: Application
    Filed: April 1, 2014
    Publication date: December 4, 2014
    Applicant: Endress + Hauser Flowtec AG
    Inventors: Christof Huber, Ennio Bitto, Marcel Braun, Alfred Rieder, Christian Schutze
  • Patent number: 8899830
    Abstract: A thermal flow measuring device and method for the manufacture of a thermal flow measuring device with a housing, which has at least one shell. A temperature sensor element is arranged in the shell which borders the housing. Each first point of an edge terminating the outside of the shell in the region of a second end section of the shell has a distance to the longitudinal axis of the shell, which is at least 0.2 mm greater than the distance of all second points of the outside of the shell to the longitudinal axis of the shell, with a first point of the edge, in each case, having a distance projected on the longitudinal axis of the shell from the first point of the edge of at least 0.2 mm in the direction of the first end section of the shell.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: December 2, 2014
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Axel Pfau, Torsten Iselt, Dirk Boguhn
  • Patent number: 8899116
    Abstract: An ultrasonic transducer for an ultrasonic flow measuring device, comprising a first housing part and a second housing part. The second housing part is axially guided in the first housing part and is so biased relative to the first housing part that, in a first state of the ultrasonic transducer, a first axial stop of the second housing part rests on a first axial stop of the first housing part, wherein, by applying, counter to the bias, a predetermined force on a second axial stop of the second housing part, the second housing part is axially shiftable, so that, in a second state of the ultrasonic transducer, the first axial stop of the second housing part is moved out of the first state.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: December 2, 2014
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Pierre Ueberschlag, Michael Bezdek, Andreas Berger
  • Patent number: 8887555
    Abstract: The viscometer provides a viscosity value (X?) which represents the viscosity of a fluid flowing in a pipe connected thereto. It comprises a vibratory transducer with at least one flow tube for conducting the fluid, which communicates with the pipe. Driven by an excitation assembly, the flow tube is vibrated so that friction forces are produced in the fluid. The viscometer further includes meter electronics which feed an excitation current (iexc) into the excitation assembly. By means of the meter electronics, a first internal intermediate value (X1) is formed, which corresponds with the excitation current (iexc) and thus represents the friction forces acting in the fluid. According to the invention, a second internal intermediate value (X2), representing inhomogeneities in the fluid, is generated in the meter electronics, which then determine the viscosity value (X?) using the two intermediate values (X1, X2).
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: November 18, 2014
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Alfred Rieder, Wolfgang Drahm
  • Patent number: 8881603
    Abstract: Method and measuring device for measuring at least one measured variable. A first sensor transmits a first measurement signal, which includes at least one half-wave of a mechanical wave or an electromagnetic wave, and, at a time t from the first measurement signal, transmits at least a second measurement signal. At least a second sensor receives the measurement signals. The travel time and TOF1 of the first measurement signal between transmitting of the first measurement signal and receiving of the first measurement signal is known, wherein the time t is so selected that it is a whole numbered multiple of the travel time TOF1 of the first measurement signal or that it is a whole numbered multiple of the average value of the travel times TOF1 and TOF2, wherein the travel time and TOF2 between transmitting a third measurement signal from the second sensor and receiving of the third measurement signal by the first sensor is known.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: November 11, 2014
    Assignee: Endress + Hauser Flowtec AG
    Inventor: Pierre Ueberschlag
  • Patent number: 8881604
    Abstract: A measuring system comprises: a measuring transducer of vibration type, through which fluid flows during operation, and which produces oscillation signals corresponding to parameters of the flowing fluid; as well as a transmitter electronics (TE), which is electrically coupled with the measuring transducer, and serves for activating the measuring transducer and for evaluating oscillation signals delivered by the measuring transducer. The measuring transducer (MT) includes: At least one measuring tube (10; 10?) for conveying flowing fluid; at least one electro-mechanical oscillation exciter (41) for actively exciting and/or maintaining bending oscillations of the at least one measuring tube in a wanted mode; and at least a first oscillation sensor (51) for registering vibrations of the at least one measuring tube, and for producing an oscillation signal (s1) of the measuring transducer, representing vibrations at least of the at least one measuring tube.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: November 11, 2014
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Hao Zhu, Wolfgang Drahm, Alfred Rieder, Vivek Kumar
  • Patent number: 8880197
    Abstract: A field device for connection to a fieldbus, wherein the field device is designed to exchange via the fieldbus a data transmission object with a host computer or with an additional field device, wherein the data transmission object has a plurality of freely loadable, transmission berths, and wherein the field device includes a data mapping structure, which establishes an association between variables to be transmitted and transmission berths of the data transmission object.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: November 4, 2014
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Marco Colucci, Dion Bouwer, Jochen Stinus
  • Patent number: 8875587
    Abstract: A measuring tube, a measuring system and a method for determining and/or monitoring flow through a measuring tube, comprising a measuring tube, on which ultrasonic transducers are releasably placeable. The ultrasonic transducers transmit and/or receive ultrasonic signals, which pass through the measuring tube approximately coaxially to the measuring tube axis. A connecting line between the centers of the ultrasonic transducers situated at an angle relative to the measuring tube axis and extends on a side of the measuring tube axis, on which the measuring tube outlet is located.
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: November 4, 2014
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Achim Wiest, Vivek Kumar
  • Patent number: 8881133
    Abstract: A method for servicing a field device of automation technology with an operating program comprising a frame application and executable software components designed for the field devices and encapsulating the servicing functionalities of field devices. The software component designed for the field device is divided in two and comprises a basic software component and a software extension component, wherein the basic software component serves for reading and writing of device parameters of the field device and provides a graphical, basic, user interface, and the software extension component is produced from the program code of the device software of the field device and delivers the service functionality of the field device.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: November 4, 2014
    Assignee: Endress + Hauser Flowtec AG
    Inventor: Martine Lefebvre
  • Patent number: 8863589
    Abstract: A measuring transducer comprises a transducer housing, of which an inlet-side housing end is formed by means of an inlet-side flow divider having eight, mutually spaced flow openings and an outlet-side housing end is formed by means of an outlet-side flow divider having eight, mutually spaced flow openings as well as a tube arrangement with eight bent measuring tubes for the conveying flowing medium, which, forming flow paths connected for parallel flow, are connected to the flow dividers, wherein each of the eight measuring tubes in each case opens with an inlet-side measuring tube end into one of the flow openings of the flow divider, and in each case opens with an outlet-side measuring tube end into one of the flow openings of the flow divider. An electro-mechanical exciter mechanism of the measuring transducer serves for producing and/or maintaining mechanical oscillations of the measuring tubes.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: October 21, 2014
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Ennio Bitto, Peter Tschabold, Dieter Mundschin, Christian Schutze, Martin Anklin
  • Patent number: 8865257
    Abstract: The measuring tube of an 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 21, 2014
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Thomas Sulzer, Johannes Ruchel, Alexander Stuenzi
  • Patent number: 8857270
    Abstract: A method for detecting plugging of a measuring tube. Heat is supplied to a medium conveyed in a first measuring tube by means of at least one heating element, or heat is removed from the medium conveyed in a first measuring tube by means of at least one cooling element. At least one temperature sensor, which is thermally coupled to the medium conveyed in the first measuring tube, temperature is registered. Additionally, a first comparison variable, which is characteristic for heat transport by the medium in the first measuring tube, is determined based on the supplying of heat or removing of heat, as well as on the temperature registering, and this comparison variable is compared with a reference variable. Plugging of at least one measuring tube of the measuring transducer is detected if the first comparison variable deviates from the reference variable by more than a limit value.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: October 14, 2014
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Hao Zhu, Wolfgang Drahm, Alfred Rieder
  • Patent number: 8844371
    Abstract: A method for monitoring and/or measuring an, at least at times, two-phase medium flowing in a pipeline, and having a first phase, especially a gaseous first phase, with a first density and a second phase, especially a liquid second phase, having a second density different from the first density. The method is performed with a vortex flow measuring device, which has at least one measuring tube inserted into the pipeline, a bluff body and a vortex sensor. In such case, the vortex sensor includes a sensitive section that responds to pressure fluctuations, and that is arranged at least partially adjoining the wall of the measuring tube.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: September 30, 2014
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Peter Limacher, Dirk Sutterlin, Rainer Hocker, Christoph Gossweiler
  • Patent number: 8826744
    Abstract: A measuring transducer comprises a housing, and a tube arrangement formed by means of at least two tubes extending within the housing. At least one tube is embodied as a measuring tube serving for conveying flowing medium and another tube is mechanically connected with the tube by means of a coupling element to form an inlet-side coupling zone and by means of a coupling element. The coupling element is arranged equally far removed from the housing end. One coupling element has, about an imaginary longitudinal axis of the tube arrangement imaginarily connecting a center of mass of the coupling element and a center of mass of the other coupling element, with an angle of intersection equal to that with the other coupling element, a bending stiffness, which deviates from a bending stiffness of the other coupling element about said imaginary longitudinal axis of the tube arrangement.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: September 9, 2014
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Alfred Rieder, Wolfgang Drahm, Michael Wiesmann, Christof Huber, Martin Anklin