Patents Assigned to Flowtec AG
  • Patent number: 7299699
    Abstract: A composite system includes a first component, for instance of metal, and a second component extending at least partly through the first component along an imaginary longitudinal axis of the composite system. The second component contacts, with an at least partially curved, especially cylindrical, outer surface, an inner surface of the first component flushly such that the first component at least sectionally, at least partly, grips around the second component. Joining surfaces of the composite system, which are formed by the mutually contacting surfaces of the two components, are formed in such a manner that the two components exhibit contour portions in the area of these joining surfaces embodied as self-closing, peripheral surfaces. The contour portions fit at least partly into one another, to form a mechanical interference locking effective, at least in part, likewise in the direction of the longitudinal axis.
    Type: Grant
    Filed: October 5, 2005
    Date of Patent: November 27, 2007
    Assignee: Endress + Hauser Flowtec AG
    Inventor: Rainer Lorenz
  • Patent number: 7302356
    Abstract: A Coriolis flowmeter having an improved measurement accuracy, especially in measurement applications, where conventional Coriolis flowmeters may have a reduced accuracy due to erroneous flow spiking or outputs during no-flow situations is described, comprising: a measurement tube, a driver for imparting a force proportional to an applied excitation signal to the measurement tube for setting the measurement tube into an oscillatory motion, motion sensors for measuring the motion of the measurement tube, an excitation signal generator, for generating the excitation signal to be supplied to the driver based on the measurement signals derived by the motion sensors, means for monitoring the excitation signal or a damping-coefficient of a damping of the measurement tube 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 fluid through the measurement tube, wherein the corrected fl
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: November 27, 2007
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Paul Logue, Jerry E. Stevens
  • Patent number: 7299348
    Abstract: A programmable field mounted device which operates when a computational process operates in the device electronics. The device has an activated first memory area storing a first programmable configuration and a deactivated second memory area storing a second programmable configuration. the second memory area is modified. Simultaneously, the first programmable configuration in the first memory area is executed by the computational process. Upon completion of configuring the second memory area, the first memory area is deactivated and the second memory area is activated for executing by the computational process.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: November 20, 2007
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Jochen Stinus, Monika Banzhaf
  • Patent number: 7296482
    Abstract: A flowmeter suitable for replacement of differential pressure flowmeters comprising: a primary flow sensor, sensor electronics for proving a measurement signal; a signal processing unit for determining the flow, which can be set to produce a signal proportional to the flowrate or the square of the flowrate; and an output signal generator for generating an output signal proportional to the signal of the signal processing unit.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: November 20, 2007
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Joseph W. Schaffer, Dean Sylvia
  • Patent number: 7296484
    Abstract: An inline measuring device includes a vibration-type measurement pickup having at least one measuring tube, which has a medium to be measured flowing through it during operation. The measuring tube is made by means of an exciter arrangement to execute, at least at times and/or at least in part, lateral oscillations and, at least at times and/or at least in part, torsional oscillations about an imaginary measuring tube longitudinal axis. The torsional oscillations alternate with the lateral oscillations or are, at times, superimposed thereon. Also included is a sensor arrangement for producing oscillation measurement signals correspondingly representing oscillations of the measuring tube. Measuring device electronics controlling the exciter arrangement generates, by means of at least one of the oscillation measurement signals and/or by means of the exciter current, at least at times, at least one measured value, which represents the at least one physical quantity to be measured.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: November 20, 2007
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Alfred Rieder, Wolfgang Drahm, Michael Fuchs, Hans-Jörg Sprich, Ibho Itin, Samuel Wyss
  • Publication number: 20070251597
    Abstract: In a method for controlling after-run in a filling unit, wherein the amount of after-run is normally determined by the averaging of n filling instances, following a signal associated with the unit and signalling changes in the filling conditions, the after-run amount is determined by the averaging of m<n filling instances.
    Type: Application
    Filed: December 2, 2003
    Publication date: November 1, 2007
    Applicant: Endress + Hauser Flowtec AG
    Inventor: Hartmut Breithaupt
  • Patent number: 7289917
    Abstract: A Coriolis flow meter, which includes: at least one measuring tube, which is excited to oscillate during measurement operation, and through which a medium flows, first and second sensors for registering a flow-dependent oscillation of the measuring tube and for producing first and second sensor signals; and two separated, signal-processing branches. According to a method of flow measurement a reference signal is superimposed on the first or second of the sensor signals, by the passing through both signal processing branches of an auxiliary signal formed by the superimposing, and by the filtering of a first, conditioned, reference signal from a first signal occurring on the output of the first signal processing branch and the filtering of a second, conditioned, reference signal from a second signal occurring on the output of the second signal processing branch, and by determining a ratio of the amplification gains of the signal processing branches on the basis of the conditioned, reference signals.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: October 30, 2007
    Assignee: Endress +Hasuer Flowtec AG
    Inventors: Daniel Kuttler, Christian Matt
  • Patent number: 7284449
    Abstract: An inline measuring device includes a vibration-type measurement pickup having at least one measuring tube, which has a medium to be measured flowing through it during operation. The measuring tube is made by means of an exciter arrangement to execute, at least at times and/or at least in part, lateral oscillations and, at least at times and/or at least in part, torsional oscillations about an imaginary measuring tube longitudinal axis. The torsional oscillations alternate with the lateral oscillations or are, at times, superimposed thereon. Also included is a sensor arrangement for producing oscillation measurement signals correspondingly representing oscillations of the measuring tube. Measuring device electronics controlling the exciter arrangement generates, by means of at least one of the oscillation measurement signals and/or by means of the exciter current, at least at times, at least one measured value, which represents the at least one physical quantity to be measured.
    Type: Grant
    Filed: March 21, 2005
    Date of Patent: October 23, 2007
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Alfred Rieder, Wolfgang Drahm, Michael Fuchs, Hans-Jörg Sprich, Ibho Itin, Samuel Wyss
  • Publication number: 20070234822
    Abstract: The measuring transducer includes at least one measuring tube communicating with a line connected during operation for conveying a medium to be measured, and a support element oscillatably holding the at least one measuring tube. Additionally, it is provided that the support element contains at least two passageways, via which the at least one measuring tube communicates with the line, and that the at least one measuring tube is affixed, especially releasably, at at least one end to the support element by means of a screwed-fitting at one of the passageways. Alternatively or in supplementation thereof, it is further provided that the at least one measuring tube is, at least in part, made of cold-strengthened, for instance cold-stretched or autofrettaged, material.
    Type: Application
    Filed: March 22, 2007
    Publication date: October 11, 2007
    Applicant: Endress + Hauser Flowtec AG
    Inventors: Ennio Bitto, Rainer Lorenz, Holger Bernhard
  • Publication number: 20070234823
    Abstract: The measuring transducer includes at least one measuring tube communicating with a line connected during operation for conveying a medium to be measured, and a support element oscillatably holding the at least one measuring tube. Additionally, it is provided that the support element contains at least two passageways, via which the at least one measuring tube communicates with the line, and that the at least one measuring tube is affixed, especially releasably, at at least one end to the support element by means of a screwed-fitting at one of the passageways. Alternatively or in supplementation thereof, it is further provided that the at least one measuring tube is, at least in part, made of cold-strengthened, for instance cold-stretched or autofrettaged, material.
    Type: Application
    Filed: March 22, 2007
    Publication date: October 11, 2007
    Applicant: Endress + Hauser Flowtec AG
    Inventors: Ennio Bitto, Rainer Lorenz, Holger Bernhard
  • Publication number: 20070234791
    Abstract: An apparatus for determining and/or monitoring volume- and/or mass-flow of a medium flowing through a pipeline in a stream direction. At least two ultrasonic sensors are included, which are secured in a defined measuring positional relationship on the outer wall of the pipeline and alternately emit and receive ultrasonic measuring signal. A control/evaluation unit, which determines volume- and/or mass-flow of the medium in the pipeline on the basis of the travel time difference of ultrasonic measuring signals in the stream direction and opposite to the stream direction is also provided. For assuring rapid mounting and demounting of the ultrasonic flow measuring device on a pipeline, the at least two ultrasonic sensors are secured on a pliers-like clamping unit, which is embodied in a manner such that the ultrasonic sensors are brought into a measuring positional relationship by simple clamping onto the pipeline.
    Type: Application
    Filed: October 13, 2004
    Publication date: October 11, 2007
    Applicant: ENDRESS & HAUSER FLOWTEC AG
    Inventors: Achim Wiest, Andreas Berger, Patrick Oudoire
  • Publication number: 20070234824
    Abstract: The measuring transducer includes at least one measuring tube communicating with a line connected during operation for conveying a medium to be measured, and a support element oscillatably holding the at least one measuring tube. Additionally, it is provided that the support element contains at least two passageways, via which the at least one measuring tube communicates with the line, and that the at least one measuring tube is affixed, especially releasably, at at least one end to the support element by means of a screwed-fitting at one of the passageways. Alternatively or in supplementation thereof, it is further provided that the at least one measuring tube is, at least in part, made of cold-strengthened, for instance cold-stretched or autofrettaged, material.
    Type: Application
    Filed: March 22, 2007
    Publication date: October 11, 2007
    Applicant: Endress + Hauser Flowtec AG
    Inventors: Ennio Bitto, Rainer Lorenz, Holger Bernhard
  • Patent number: 7275448
    Abstract: A mount for electrical leads to a vibration-type sensor and/or for coils on a vibration-type sensor. The mount includes at least one resilient first arm attached to a first sensing tube of the sensor and at least one resilient arm attached to a second sensing tube of the sensor. The two sensing tubes, which are caused to vibrate during operation of the sensor, form a double-tube arrangement having a longitudinal gravity line, which lies in an imaginary central plane extending between the two, preferably parallel, sensing tubes. The mount exhibits a first eigenmode of predeterminable mechanical resonance frequency, at which the first arm and the second arm oscillate pendularly essentially perpendicular to the central plane of the double-tube arrangement.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: October 2, 2007
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Ennio Bitto, Gerhard Eckert
  • Patent number: 7260486
    Abstract: A flow meter includes a measuring tube for conveying a fluid to be measured and a magnetic field system, which has at least one field coil, through which an exciter current (IM) flows, at least at times, for producing a magnetic field passing through the fluid at least partly perpendicularly to a stream direction. In the method, the voltage (UH) instantaneously driving the exciter current (IM) is changed at a second point in time, t2, from the second voltage level, Udrv, to a third voltage level, Ushort, especially to a third voltage level which is constant or controlled to be constant, in order to achieve a sinking of the electrical current strength of the exciter current (IM) instantaneously flowing in the at least one field coil from the maximum current value, Im, to an electrical current end value, Iczu, especially a constant end value, predetermined for the exciter current (IM). In such case, the third voltage level, Ushort, is chosen smaller than the second voltage level, Urev.
    Type: Grant
    Filed: September 21, 2005
    Date of Patent: August 21, 2007
    Assignee: Endress + Hauser Flowtec AG
    Inventor: Thomas Budmiger
  • Publication number: 20070186686
    Abstract: The measuring device comprises, for measuring multi phase mixture, a vibratory-type transducer and a measuring device electronics electrically coupled with the vibratory-type transducer. The transducer includes at least one measuring tube inserted into the course of the pipeline. An exciter arrangement acts on the measuring tube for causing the at least one measuring tube to vibrate. A sensor arrangement senses vibrations of the at least one measuring tube and delivers at least one oscillation measurement signal representing oscillations of the measuring tube. Further, the measuring device electronics delivers an excitation current driving the exciter arrangement. The measuring device is adapted to compensating measurement errors, induced due to the presence of multi phase mixture, based on a movin resonator model (MRM).
    Type: Application
    Filed: December 27, 2006
    Publication date: August 16, 2007
    Applicant: Endress + Hauser Flowtec AG
    Inventors: Wolfgang Drahm, Alfred Rieder
  • Publication number: 20070186685
    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: Application
    Filed: November 15, 2006
    Publication date: August 16, 2007
    Applicant: Endress + Hauser Flowtec AG
    Inventors: Ennio Bitto, Gerhard Eckert, Rainer Lorenz, Alfred Rieder, Christian Schuetze, Michael Fuchs, Martin Anklin-Imhof, Wolfgang Drahm, Leonhard Probst
  • Publication number: 20070180929
    Abstract: The measuring device comprises, for measuring multi phase mixture, a vibratory-type transducer and a measuring device electronics electrically coupled with the vibratory-type transducer. The transducer includes at least one measuring tube inserted into the course of the pipeline. An exciter arrangement acts on the measuring tube for causing the at least one measuring tube to vibrate. A sensor arrangement senses vibrations of the at least one measuring tube and delivers at least one oscillation measurement signal representing oscillations of the measuring tube. Further, the measuring device electronics delivers an excitation current driving the exciter arrangement. The measuring device is adapted to compensating measurement errors, induced due to the presence of multi phase mixture, based on a movin resonator model (MRM).
    Type: Application
    Filed: December 26, 2006
    Publication date: August 9, 2007
    Applicant: Endress + Hauser Flowtec AG
    Inventors: Alfred Rieder, Wolfgang Drahm
  • Patent number: 7251985
    Abstract: A measuring arrangement, including: a measuring transmitter with a sensor for registering a property of a medium and for issuing a primary signal dependent on the property; a transmitter housing, with at least one chamber and a first opening on the side facing the medium as well as a second opening, with a first contamination path section extending between the openings through the chamber; a first seal, which interrupts the first contamination path section; a circuit in the chamber, for processing the primary signal and producing an output signal, which is issued over a first signal path section through the second opening; a safety module, which includes: a module housing with at least one module chamber, having a first module opening on the side facing the transmitter and a second module opening, wherein a second contamination path section reaches from the first module opening at least as far as into the module chamber; at least a second seal, which interrupts the second contamination path section; and a sec
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: August 7, 2007
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Peter Renk, Gerold Klotz-Engmann, Michael Hügel
  • Patent number: 7240566
    Abstract: An apparatus for the positioning of a clamp-on flow measuring device on a containment, which has a medium flowing through it. The apparatus includes at least two ultrasonic transducers, which emit measuring signals into the containment and/or receive measuring signals from the containment, a positioning unit for the variable positioning of the ultrasonic transducers on the containment, a control/evaluation unit, which calculates from predetermined process and/or system variables a characteristic, desired variable of the measuring signals and which determines on the basis of a comparison of the calculated, desired variable with the corresponding, measured, actual variable, whether the ultrasonic transducers are optimally positioned or whether the position of the ultrasonic transducers need to be changed, and an indicating unit, which indicates to operating personnel a required change of position and/or the direction in which a change of position needs to be made.
    Type: Grant
    Filed: December 6, 2003
    Date of Patent: July 10, 2007
    Assignee: Endress + Hauser Flowtec AG
    Inventors: Thomas Froehlich, Achim Wiest, Andreas Berger, Harald Stocker, Torsten Strunz, Auréle Fleury, Klaus Bussinger, Oliver Brumberg
  • Publication number: 20070156357
    Abstract: Field-device electronics including an electric current controller, through which a supply current flows. The electric current controller controls and/or modulates the supply current. The supply current is driven by a supply voltage provided by the external energy supply. Additionally, the field-device electronics has an internal operating and evaluating circuit for controlling the field device, as well as an internal supply circuit lying at a field-device electronics, internal input voltage derived from the supply voltage and feeding the internal operating and evaluating circuit. Provided in the supply circuit is a voltage controller flowed-through, at least at times, by a first component of the supply current. The voltage controller provides in the field-device electronics a first internal, useful voltage controlled to be essentially constant at a predetermined, first voltage level.
    Type: Application
    Filed: March 5, 2007
    Publication date: July 5, 2007
    Applicant: Endress + Hauser Flowtec AG
    Inventor: Robert Lalla