Patents Assigned to Flowtec AG
  • Patent number: 7540202
    Abstract: An apparatus for measuring flow of a medium through a measuring tube directed along a longitudinal axis of the measuring tube.
    Type: Grant
    Filed: May 4, 2005
    Date of Patent: June 2, 2009
    Assignee: Endress + Hauser Flowtec AG
    Inventor: Thomas Bier
  • Publication number: 20090138693
    Abstract: A field device of process automation technology containing a plurality of parameters, with which are associated device-internal parameter addresses. The field device is connectable to a fieldbus having a fieldbus-specific parameter addressing system. In such case, the device-internal parameter addresses of the plurality of parameters are determinable by application of a generic mathematical function to belonging fieldbus-specific parameter addresses formed according to the fieldbus-specific parameter addressing system.
    Type: Application
    Filed: November 13, 2008
    Publication date: May 28, 2009
    Applicant: Endress + Hauser Flowtec AG
    Inventors: Alain Chomik, Udo Fuchs, Pierre Harnist
  • Patent number: 7533580
    Abstract: A Coriolis flowmeter having an improved measurement accuracy, especially in measurement applications, where conventional Coriolis flowmeter may have a reduced accuracy due to erroneous flow spiking or outputs during no-flow situations is described, comprising: a measurement tube (4), a driver (16) for imparting a force proportional to an applied excitation signal to the measurement tube (4) for setting the measurement tube (4) into an oscillatory motion, motion sensors (17, 18) for measuring the motion of the measurement tube (4), an excitation signal generator, for generating the excitation signal to be supplied to the driver (16) based on the measurement signals derived by the motion sensors (17, 18), means (20, 27) for monitoring the excitation signal or a damping-coefficient of a damping of the measurement tube (4) and for determining whether an amplitude (A) of the excitation signal or the damping coefficient exceeds an application-specific range, and means for determining a corrected flow (Fc) of a flui
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: May 19, 2009
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Paul Logue, Jerry E. Stevens
  • Patent number: 7523662
    Abstract: The process meter comprises a sensor that can be mounted in a wall of a vessel for holding or conveying a process medium, and a meter-electronics case mechanically coupled to the sensor. In operation, the electronics case is at least intermittently subjected to vibrations either generated in the sensor itself or transmitted via the sensor. To reduce amplitudes of such vibrations of the electronics case, at least one vibration absorber is affixed to a wall of the electronics case. This vibration absorber is vibrated at least intermittently in order to dissipate vibrational energy taken into the electronic case. By the suppression of such case vibrations, spurious components in the measurement signal can be reduced to the point that a significant improvement in signal-to-noise ratio is obtained.
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: April 28, 2009
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Wolfgang Drahm, Helmut Zeislmeier, Alfred Rieder, Gabriele Fröhlich
  • Patent number: 7523674
    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: June 4, 2007
    Date of Patent: April 28, 2009
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Thomas Sulzer, Johannes Ruchel, Alexander Stuenzi
  • Patent number: 7523677
    Abstract: Apparatus for ascertaining and/or monitoring volume- or mass-flow of a medium flowing through a pipeline in the direction of the longitudinal axis of the pipeline. The apparatus includes at least one ultrasonic sensor containing at least one sound-producing element and an interfacing shoe and emitting, respectively receiving, ultrasonic measurement signals at an incidence/emergence angle into, respectively out of, the pipeline A first adjusting mechanism is provided, which is so embodied, that the incidence/emergence angle of the ultrasonic sensor is adjustable in predetermined limits. The apparatus further includes a control/evaluation unit, which ascertains the volume- or mass-flow of the medium in the pipeline on the basis of the travel-time difference method, the cross-correlation method or the Doppler method.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: April 28, 2009
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Achim Wiest, Andreas Berger, Oliver Berberig
  • Patent number: 7523675
    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: June 4, 2007
    Date of Patent: April 28, 2009
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Thomas Sulzer, Johannes Ruchel, Alexander Stuenzi
  • Publication number: 20090100940
    Abstract: An ultrasonic flow measuring device for determining and/or monitoring volume- and/or mass-flow of a measured medium through a pipeline or measuring tube. The wall of the pipeline or measuring tube is provided, in the region of the defined sensor position of the ultrasonic sensor and/or in the region of the sound path of the ultrasonic measuring signals of the at least one ultrasonic sensor, with a deformation or deformations, which is/are embodied and/or arranged in such a manner that the flow velocity of the medium measured in the sound path, or, in the case of plural ultrasonic sensors, the measured and/or the combined flow velocities of the medium in the sound paths correspond/corresponds at least approximately to average flow velocity of the medium averaged over the area of the pipeline or measuring tube.
    Type: Application
    Filed: November 29, 2005
    Publication date: April 23, 2009
    Applicant: Endress + Hauser Flowtec AG
    Inventors: Torsten Strunz, Thomas Frohlich, Achim Wiest, Andreas Berger, Oliver Berberig
  • Patent number: 7520162
    Abstract: A vibration meter and a method of measuring a viscosity of a fluid flowing through a pipe are disclosed. The vibration meter comprises meter electronics and a transducer assembly with an electromechanical excitation arrangement and with a flow tube which oscillates in operation. A sensor arrangement produces sensor signals representative of inlet-side and outlet-side deflections of the flow tube. An evaluation circuit derives from said sensor signals and from an excitation current generated by an excitation circuit for the excitation arrangement a viscosity value representative of the viscosity of the fluid.
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: April 21, 2009
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Alfred Wenger, Michael Fuchs, Christian Matt, Wolfgang Drahm
  • Publication number: 20090095088
    Abstract: An apparatus for ascertaining and/or monitoring volume- and/or mass-flow of a measured medium flowing in a flow direction through a measuring tube of predetermined inner diameter. The apparatus includes a plurality of ultrasonic sensors, which transmit and/or receive ultrasonic measuring signals along different, defined measuring paths, and a control/evaluation unit, which ascertains volume- and/or mass-flow of the measured medium in a pipeline/in the measuring tube on the basis of the ultrasonic measuring signals according to a sound entrainment method or the echo principle. At least two ultrasonic sensors, which transmit and/or receive the ultrasonic measuring signals on different measuring paths, are positioned in an opening located in the wall of the measuring tube.
    Type: Application
    Filed: December 16, 2005
    Publication date: April 16, 2009
    Applicant: Endress + Hauser Flowtec AG
    Inventors: Andreas Berger, Achim Wiest, Patrick Oudoire
  • Patent number: 7509879
    Abstract: A measurement pickup, or transducer, includes at least one measuring tube for the conveying of a fluid. The measuring tube has an inlet end and an outlet end and vibrates at least at times. For enabling the fluid to be measured to flow through the measuring tube, the measuring tube communicates, via a first tube segment opening into the inlet end and via a second tube segment opening into the outlet end, with a pipeline connected therewith. For the oscillatable holding of the measuring tube, the measurement pickup further includes a support element having a first end piece containing a passageway for the securement of the first tube segment and having a second end piece containing a passageway for the securement of the second tube segment.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: March 31, 2009
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Alfred Rieder, Wolfgang Drahm
  • Publication number: 20090049925
    Abstract: A measuring system serves for measuring a density of a medium flowing in a process line along a flow axis of the measuring system in the case of a medium which is variable as regards a thermodynamic state, especially a medium which is, at least in part, compressible. The measuring system includes at least one temperature sensor placed at a temperature measuring point, reacting primarily to a local temperature, ?, of medium flowing past, and delivering at least one temperature measurement signal influenced by the local temperature of the medium to be measured; at least one pressure sensor placed at a pressure measuring point, reacting primarily to a local, especially a static, pressure, p, of medium flowing past, and delivering at least one pressure measurement signal influenced by the local pressure, p, in the medium to be measured; as well as a measuring electronics communicating, in each case, at least at times, with the temperature sensor and the pressure sensor.
    Type: Application
    Filed: June 30, 2008
    Publication date: February 26, 2009
    Applicant: Endress + Hauser Flowtec AG
    Inventor: Rainer Hocker
  • Patent number: 7490521
    Abstract: The measurement transducer includes: A measuring tube vibrating at least at times during operation and serving for the conveying of a medium, wherein the measuring tube communicates with a pipeline via an inlet tube piece at an inlet end and an outlet tube piece at an outlet end; a counteroscillator, which is affixed to the measuring tube on the inlet end to form a first coupling zone and affixed to the measuring tube on the outlet end to form a second coupling zone; and a first cantilever for producing bending moments in the inlet tube piece and coupled with the inlet tube piece and the measuring tube essentially rigidly in the area of the first coupling zone and having a center of mass lying in the region of the inlet tube piece, as well as a second cantilever for producing bending moments in the outlet tube piece and coupled essentially rigidly with the outlet tube piece and the measuring tube in the region of the second coupling zone and having a center of mass lying in the region of the outlet tube piece
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: February 17, 2009
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Ennio Bitto, Gerhard Eckert, Rainer Lorenz, Alfred Rieder, Christian Schuetze, Michal Fuchs, Martin Anklin-Imhof, Wolfgang Drahm, Leonhard Probst
  • Publication number: 20090038409
    Abstract: A measuring device, embodied, for example, as an in-line measuring device and/or flow measuring device, serves for registering at least one measured variable of a medium, for example a medium flowing in a pipeline, and is made, at least in part, of a solid, biologically degradable, synthetic material (BDM).
    Type: Application
    Filed: July 31, 2008
    Publication date: February 12, 2009
    Applicant: Endress + Hauser Flowtec AG
    Inventor: Johannes Ruchel
  • Publication number: 20090038406
    Abstract: A measuring system for measuring a density of a medium flowing in a process line along a flow axis of the measuring system in the case of a medium which is variable as regards a thermodynamic state, especially a medium which is, at least in part, compressible. The measuring system includes at least one temperature sensor placed at a temperature measuring point, reacting primarily to a local temperature, ?, of medium flowing past, and delivering at least one temperature measurement signal influenced by the local temperature of the medium to be measured; at least one pressure sensor placed at a pressure measuring point, reacting primarily to a local, especially a static, pressure, p, of medium flowing past, and delivering at least one pressure measurement signal influenced by the local pressure, p, in the medium to be measured; as well as a measuring electronics communicating, in each case, at least at times, with the temperature sensor and the pressure sensor.
    Type: Application
    Filed: June 30, 2008
    Publication date: February 12, 2009
    Applicant: Endress + Hauser Flowtec AG
    Inventor: Rainer Hocker
  • Publication number: 20090038405
    Abstract: A measuring system for measuring a density of a medium flowing in a process line along a flow axis of the measuring system in the case of a medium which is variable as regards a thermodynamic state, especially a medium which is, at least in part, compressible. Included are: at least one temperature sensor placed at a temperature measuring point, reacting primarily to a local temperature, ?, of medium flowing past, and delivering at least one temperature measurement signal influenced by the local temperature of the medium to be measured; at least one pressure sensor placed at a pressure measuring point, reacting primarily to a local, especially a static, pressure, p, of medium flowing past, and delivering at least one pressure measurement signal influenced by the local pressure, p, in the medium to be measured; as well as a measuring electronics communicating, in each case, at least at times, with the temperature sensor and the pressure sensor.
    Type: Application
    Filed: June 30, 2008
    Publication date: February 12, 2009
    Applicant: Endress + Hauser Flowtec AG
    Inventor: Rainer Hocker
  • Publication number: 20090013798
    Abstract: A measuring system for measuring a density of a medium flowing in a process line along a flow axis of the measuring system in the case of a medium which is variable as regards a thermodynamic state, especially a medium which is, at least in part, compressible.
    Type: Application
    Filed: June 30, 2008
    Publication date: January 15, 2009
    Applicant: Endress + Hauser Flowtec AG
    Inventor: Rainer Hocker
  • Patent number: 7475603
    Abstract: The measurement transducer includes: A measuring tube vibrating at least at times during operation and serving for the conveying of a medium, wherein the measuring tube communicates with a pipeline via an inlet tube piece at an inlet end and an outlet tube piece at an outlet end; a counteroscillator, which is affixed to the measuring tube on the inlet end to form a first coupling zone and affixed to the measuring tube on the outlet end to form a second coupling zone; and a first cantilever for producing bending moments in the inlet tube piece and coupled with the inlet tube piece and the measuring tube essentially rigidly in the area of the first coupling zone and having a center of mass lying in the region of the inlet tube piece, as well as a second cantilever for producing bending moments in the outlet tube piece and coupled essentially rigidly with the outlet tube piece and the measuring tube in the region of the second coupling zone and having a center of mass lying in the region of the outlet tube piece
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: January 13, 2009
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Ennio Bitto, Gerhard Eckert, Rainer Lorenz, Alfred Rieder, Christian Schuetze, Michal Fuchs, Martin Anklin-Imhof, Wolfgang Drahm, Leonhard Probst
  • Patent number: 7472607
    Abstract: The measurement transducer includes: A measuring tube vibrating at least at times during operation and serving for the conveying of a medium, wherein the measuring tube communicates with a pipeline via an inlet tube piece at an inlet end and an outlet tube piece at an outlet end; a counteroscillator, which is affixed to the measuring tube on the inlet end to form a first coupling zone and affixed to the measuring tube on the outlet end to form a second coupling zone; and a first cantilever for producing bending moments in the inlet tube piece and coupled with the inlet tube piece and the measuring tube essentially rigidly in the area of the first coupling zone and having a center of mass lying in the region of the inlet tube piece, as well as a second cantilever for producing bending moments in the outlet tube piece and coupled essentially rigidly with the outlet tube piece and the measuring tube in the region of the second coupling zone and having a center of mass lying in the region of the outlet tube piece
    Type: Grant
    Filed: November 15, 2006
    Date of Patent: January 6, 2009
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Ennio Bitto, Gerhard Eckert, Rainer Lorenz, Alfred Rieder, Christian Schuetze, Michal Fuchs, Martin Anklin-Imhof, Wolfgang Drahm, Leonhard Probst
  • Patent number: 7469599
    Abstract: Flowmeter comprising at least two ultrasonic transducers that are mounted on a container which is penetrated by a medium in a certain direction of flow. The ultrasonic transducers alternately transmit and receive ultrasonic test signals in the direction of flow and counter to the direction of flow. The flowmeter further comprises a control/evaluation unit which determines and/or monitors the volume flow of the medium inside the container based on the difference in the travel time of the ultrasonic test signals propagating in the direction of flow and counter to the direction of flow. The ultrasonic transducers are configured such that they transmit and receive ultrasonic test signals or sound fields having a large aperture angle or a great beam expansion.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: December 30, 2008
    Assignee: Endress + Hauser FLowtec AG
    Inventors: Thomas Froehlich, Achim Wiest, Torsten Strunz